< Back

Health Terms starting with H

Common Health Terms | All Health Terms

2nd Letter:

- ( a C e i L M N o S T u y

H(+)-K(+)-Exchanging ATPase - An enzyme isolated from the gastric mucosa that catalyzes the hydrolysis of ATP coupled with the exc...

H-1 parvovirus - A species in the genus PARVOVIRUS that has the ability to replicate and kill tumor cells in culture....

H-2 Antigens - The major group of transplantation antigens in the mouse....

Habenula - A small protuberance at the dorsal, posterior corner of the wall of the third ventricle, adjacent to...

Habits - Acquired or learned responses which are regularly manifested....

Habituation, Psychophysiologic - The disappearance of responsiveness to a repeated stimulation. It does not include drug habituation....

Haemonchiasis - Infection with nematodes of the genus HAEMONCHUS, characterized by digestive abnormalities and anemi...

Haemonchus - A genus of parasitic nematode worms which infest the duodenum and stomach of domestic and wild herbi...

Haemophilus - A genus of PASTEURELLACEAE that consists of several species occurring in animals and humans. Its org...

Haemophilus ducreyi - A species of HAEMOPHILUS that appears to be the pathogen or causative agent of the sexually transmit...

Haemophilus Infections - Infections with bacteria of the genus HAEMOPHILUS....

Haemophilus influenzae - A species of HAEMOPHILUS found on the mucous membranes of humans and a variety of animals. The speci...

Haemophilus influenzae type b - A type of H. influenzae isolated most frequently from biotype I. Prior to vaccine availability, it w...

Haemophilus paragallinarum - A species of gram-negative bacteria in the genus HAEMOPHILUS, causing respiratory tract disease in C...

Haemophilus parainfluenzae - A species of gram-negative bacteria in the genus HAEMOPHILUS, ubiquitous in the human ORAL CAVITY an...

Haemophilus paraphrophilus - A species of gram-negative bacteria in the genus HAEMOPHILUS, found in the normal flora of the human...

Haemophilus parasuis - A species of gram-negative bacteria in the genus HAEMOPHILUS found, in the normal upper respiratory ...

Haemophilus somnus - A species of gram-negative bacteria (currently incertae sedis) causing multisystem disease in CATTLE...

Haemophilus Vaccines - Vaccines or candidate vaccines containing antigenic polysaccharides from Haemophilus influenzae and ...

Haemosporida - An order of heteroxenous protozoa in which the macrogamete and microgamont develop independently. A ...

Hafnia - A genus of straight, gram-negative bacterial rods which are facultatively anaerobic and motile by pe...

Hafnia alvei - The type species for the genus HAFNIA. It is distinguished from other biochemically similar bacteria...

Hafnium - Hafnium. A metal element of atomic number 72 and atomic weight 178.49, symbol Hf. (From Dorland, 28t...

Hagfishes - Common name for a family of eel-shaped jawless fishes (Myxinidae), the only family in the order MYXI...

Hair - A filament-like structure consisting of a shaft which projects to the surface of the SKIN from a ro...

Hair Cells, Ampulla - Sensory cells in the ampullary crest of each of the semicircular ducts, with their apical stereocili...

Hair Cells, Auditory - Sensory cells in the organ of Corti, characterized by their apical stereocilia (hair-like projection...

Hair Cells, Auditory, Inner - Auditory sensory cells of organ of Corti, usually placed in one row medially to the core of spongy b...

Hair Cells, Auditory, Outer - Sensory cells of organ of Corti. In mammals, they are usually arranged in three or four rows, and aw...

Hair Cells, Vestibular - Sensory cells in the acoustic maculae with their apical stereocilia embedded in a gelatinous OTOLITH...

Hair Color - Color of hair or fur....

Hair Diseases - Diseases affecting the orderly growth and persistence of hair....

Hair Dyes - Dyes used as cosmetics to change hair color either permanently or temporarily....

Hair Follicle - A tube-like invagination of the EPIDERMIS from which the hair shaft develops and into which SEBACEOU...

Hair Preparations - Hair grooming and cleansing aids or other products meant for topical application to hair, usually hu...

Haiti - A republic in the Greater Antilles in the West Indies. Its capital is Port-au-Prince. With the Domin...

Hajdu-Cheney Syndrome - Rare, autosomal dominant syndrome characterized by ACRO-OSTEOLYSIS, generalized OSTEOPOROSIS, and sk...

Halcinonide - A glucocorticoid used topically in the treatment of DERMATITIS; ECZEMA; or PSORIASIS. It may cause s...

Half-Life - The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmaco...

Halfway Houses - Specialized residences for persons who do not require full hospitalization, and are not well enough ...

Haliclona - A genus of SPONGES in the family Chalinidae characterized by unispicular secondary lines in the choa...

Halitosis - An offensive, foul breath odor resulting from a variety of causes such as poor oral hygiene, dental ...

Hallermann's Syndrome - An oculomandibulofacial syndrome principally characterized by dyscephaly (usually brachycephaly), pa...

Hallucinations - Subjectively experienced sensations in the absence of an appropriate stimulus, but which are regarde...

Hallucinogens - Drugs capable of inducing illusions, hallucinations, delusions, paranoid ideations, and other altera...

Hallux Limitus - A bony proliferation and articular degeneration of the first METATARSOPHALANGEAL JOINT that is chara...

Hallux Rigidus - A condition caused by degenerative arthritis (see OSTEOARTHRITIS) of the METATARSOPHALANGEAL JOINT o...

Hallux Valgus - Lateral displacement of the great toe (HALLUX), producing deformity of the first METATARSOPHALANGEAL...

Hallux Varus - Displacement of the great toe (HALLUX) towards the midline or away from the other TOES. It can be co...

Haloarcula - A genus of HALOBACTERIACEAE distinguished from other genera in the family by the presence of specifi...

Haloarcula marismortui - A species of halophilic archaea distinguished by its production of acid from sugar. This species was...

Halobacteriaceae - A family of extremely halophilic archaea found in environments with high salt concentrations, such a...

Halobacteriales - An order of extremely halophilic archaea, in the kingdom EURYARCHAEOTA. They occur ubiquitously in n...

Halobacterium - A genus of HALOBACTERIACEAE whose growth requires a high concentration of salt. Binary fission is by...

Halobacterium salinarum - A species of halophilic archaea found in salt lakes. Some strains form a PURPLE MEMBRANE under anaer...

Halococcus - A genus of extremely halophilic HALOBACTERIACEAE with coccoid cells occurring singly or as pairs, te...

Halofenate - An antihyperlipoproteinemic agent and uricosuric agent....

Haloferax - A genus of extremely halophilic HALOBACTERIACEAE which are chemoheterotropic and strictly aerobic. T...

Haloferax mediterranei - A species of halophilic archaea found in the Mediterranean Sea. It produces bacteriocins active agai...

Haloferax volcanii - A species of halophilic archaea found in the Dead Sea....

Halogenated Diphenyl Ethers - Compounds that contain two halogenated benzene rings linked via an OXYGEN atom. Many polybrominated ...

Halogenation - Covalent attachment of HALOGENS to other compounds....

Halogens - A family of nonmetallic, generally electronegative, elements that form group 17 (formerly group VIIa...

Halomonadaceae - A family of gram-negative, moderately halophilic bacteria in the order Oceanospirillales. Members of...

Halomonas - A genus of gram-negative, rod-shaped or pleomorphic bacteria which are halotolerant. Members of this...

Haloperidol - A phenyl-piperidinyl-butyrophenone that is used primarily to treat SCHIZOPHRENIA and other PSYCHOSES...

Halorhodopsins - Light driven chloride ion pumps that are ubiquitously found in halophilic archaea (HALOBACTERIALES)....

Halorhodospira halophila - A species of Halorhodospira distinguished by its ability to grow optimally in an environment of 15-2...

Halorubrum - A genus of HALOBACTERIACEAE which are chemoorganotrophic and strictly aerobic. They have been isolat...

Halothane - A nonflammable, halogenated, hydrocarbon anesthetic that provides relatively rapid induction with li...

Halothiobacillus - A genus of gram-negative, chemolithoautotrophic bacteria in the family Halothiobacillaceae. Several ...

Hamamelidaceae - A plant family of the order Hamamelidales, subclass Hamamelidae, class Magnoliopsida....

Hamamelis - A plant genus of the family Hamamelidaceae, order Hamamelidales. It is known for the astringent (AS...

Hamartoma - A focal malformation resembling a neoplasm, composed of an overgrowth of mature cells and tissues th...

Hamartoma Syndrome, Multiple - A hereditary disease characterized by multiple ectodermal, mesodermal, and endodermal nevoid and neo...

Hamate Bone - A carpal bone located between the CAPITATE BONE and the TRIQUETRUM BONE. The hamate has a prominent ...

Hamelia - A plant genus of the family RUBIACEAE that has a name very similar to another plant genus, HAMAMELIS...

Hammer Toe Syndrome - A condition characterized by a series of interrelated digital symptoms and joint changes of the less...

Hand Bones - The CARPAL BONES; METACARPAL BONES; and FINGER PHALANGES. In each hand there are eight carpal bones,...

Hand Deformities - Alterations or deviations from normal shape or size which result in a disfigurement of the hand....

Hand Deformities, Acquired - Deformities of the hand, or a part of the hand, acquired after birth as the result of injury or dise...

Hand Deformities, Congenital - Alterations or deviations from normal shape or size which result in a disfigurement of the hand occu...

Hand Injuries - General or unspecified injuries to the hand....

Hand Joints - The articulations extending from the WRIST distally to the FINGERS. These include the WRIST JOINT; C...

Hand Strength - Force exerted when gripping or grasping....

Hand, Foot and Mouth Disease - A mild, highly infectious viral disease of children, characterized by vesicular lesions in the mouth...

Hand-Arm Vibration Syndrome - An occupational disorder resulting from prolonged exposure to vibration, affecting the fingers, hand...

Handbooks - Works consisting of concise reference works in which facts and information pertaining to a certain s...

Handling (Psychology) - Physical manipulation of animals and humans to induce a behavioral or other psychological reaction. ...

Handwashing - The act of cleansing the hands with water or other liquid, with or without the inclusion of soap or ...

Hanseniaspora - A genus of the ascomycetous yeast in the family Saccharomycodaceae, order SACCHAROMYCETALES, that co...

Hantaan virus - The type species of the genus HANTAVIRUS infecting the rodent Apodemus agrarius and humans who come ...

Hantavirus - A genus of the family BUNYAVIRIDAE causing HANTAVIRUS INFECTIONS, first identified during the Korean...

Hantavirus Infections - Infections with viruses of the genus HANTAVIRUS. This is associated with at least four clinical synd...

Hantavirus Pulmonary Syndrome - Acute respiratory illness in humans caused by the Muerto Canyon virus whose primary rodent reservoir...

Haploidy - The chromosomal constitution of cells, in which each type of CHROMOSOME is represented once. Symbol:...

Haplopappus - A plant genus of the family ASTERACEAE. Many of the member species have been reclassified to other g...

Haplorhini - A suborder of PRIMATES consisting of six families: CEBIDAE (some New World monkeys), ATELIDAE (some ...

Haplosporida - A phylum of EUKARYOTES in the RHIZARIA group. They are small endoparasites of marine invertebrates. ...

Haplotypes - The genetic constitution of individuals with respect to one member of a pair of allelic genes, or se...

Happiness - Highly pleasant emotion characterized by outward manifestations of gratification; joy....

Haptens - Small antigenic determinants capable of eliciting an immune response only when coupled to a carrier....

Haptoglobins - Plasma glycoproteins that form a stable complex with hemoglobin to aid the recycling of heme iron. T...

Harderian Gland - A sebaceous gland that, in some animals, acts as an accessory to the lacrimal gland. The harderian g...

Hardness - The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure ...

Hardness Tests - A test to determine the relative hardness of a metal, mineral, or other material according to one of...

Hares - The genus Lepus, in the family Leporidae, order LAGOMORPHA. Hares are born above ground, fully furre...

Harm Reduction - The application of methods designed to reduce the risk of harm associated with certain behaviors wit...

Harmaline - A beta-carboline alkaloid isolated from seeds of PEGANUM....

Harmful Algal Bloom - An algal bloom where the algae produce powerful toxins that can kill fish, birds, and mammals, and u...

Harmine - Alkaloid isolated from seeds of Peganum harmala L., Zygophyllaceae. It is identical to banisterine, ...

Harpagophytum - A plant genus of the family PEDALIACEAE. Members contain harpagoside and are the source of extract W...

Harringtonines - Tetracyclic spiro-BENZAZEPINES isolated from the seeds of CEPHALOTAXUS. They are esters of the alkal...

Hartmannella - A genus of free-living amoebae found in fresh water. The cysts usually pass harmlessly through the i...

Hartnup Disease - An autosomal recessive disorder due to defective absorption of NEUTRAL AMINO ACIDS by both the intes...

Harvey murine sarcoma virus - A replication-defective mouse sarcoma virus (SARCOMA VIRUSES, MURINE) first described by J.J. Harvey...

Hashimoto Disease - Chronic autoimmune thyroiditis, characterized by the presence of high serum thyroid AUTOANTIBODIES; ...

Hate - An enduring attitude or sentiment toward persons or objects manifested by anger, aversion and desire...

Haversian System - A circular structural unit of bone tissue. It consists of a central hole, the Haversian canal throug...

Hawaii - A group of islands in Polynesia, in the north central Pacific Ocean, comprising eight major and 114 ...

Hawks - Common name for many members of the FALCONIFORMES order, family Accipitridae, generally smaller than...

Hazardous Substances - Substances which, upon release into the atmosphere, water, or soil, or which, in direct contact with...

Hazardous Waste - Waste products which, upon release into the atmosphere, water or soil, cause health risks to humans ...

HCT116 Cells - Human COLORECTAL CARCINOMA cell line....

Head and Neck Neoplasms - Soft tissue tumors or cancer arising from the mucosal surfaces of the LIP; oral cavity; PHARYNX; LAR...

Head Injuries, Closed - Traumatic injuries to the cranium where the integrity of the skull is not compromised and no bone fr...

Head Injuries, Penetrating - Head injuries which feature compromise of the skull and dura mater. These may result from gunshot wo...

Head Movements - Voluntary or involuntary motion of head that may be relative to or independent of body; includes ani...

Head Protective Devices - Personal devices for protection of heads from impact, penetration from falling and flying objects, a...

Headache - The symptom of PAIN in the cranial region. It may be an isolated benign occurrence or manifestation ...

Headache Disorders - Various conditions with the symptom of HEADACHE. Headache disorders are classified into major groups...

Headache Disorders, Primary - Conditions in which the primary symptom is HEADACHE and the headache cannot be attributed to any kno...

Headache Disorders, Secondary - Conditions with HEADACHE symptom that can be attributed to a variety of causes including BRAIN VASCU...

Head-Down Tilt - Posture while lying with the head lower than the rest of the body. Extended time in this position is...

Health - The state of the organism when it functions optimally without evidence of disease....

Health Behavior - Behaviors expressed by individuals to protect, maintain or promote their health status. For example,...

Health Benefit Plans, Employee - Health insurance plans for employees, and generally including their dependents, usually on a cost-sh...

Health Care Coalitions - Voluntary groups of people representing diverse interests in the community such as hospitals, busine...

Health Care Costs - The actual costs of providing services related to the delivery of health care, including the costs o...

Health Care Economics and Organizations - The economic aspects of health care, its planning, and delivery. It includes government agencies and...

Health Care Evaluation Mechanisms - Methods and techniques used in evaluating the quality of health care, its planning, and delivery....

Health Care Facilities, Manpower, and Services - The services provided in the delivery of health care, associated facilities in health care, and atte...

Health Care Quality, Access, and Evaluation - The concept concerned with all aspects of the quality, accessibility, and appraisal of health care a...

Health Care Rationing - Planning for the equitable allocation, apportionment, or distribution of available health resources....

Health Care Reform - Innovation and improvement of the health care system by reappraisal, amendment of services, and remo...

Health Care Sector - Economic sector concerned with the provision, distribution, and consumption of health care services ...

Health Care Surveys - Statistical measures of utilization and other aspects of the provision of health care services inclu...

Health Education - Education that increases the awareness and favorably influences the attitudes and knowledge relating...

Health Education, Dental - Education which increases the awareness and favorably influences the attitudes and knowledge relatin...

Health Educators - Professionals who plan, organize and direct health education programs for the individual, groups and...

Health Expenditures - The amounts spent by individuals, groups, nations, or private or public organizations for total heal...

Health Facilities - Institutions which provide medical or health-related services....

Health Facilities, Proprietary - Health care institutions operated by private groups or corporations for a profit....

Health Facility Administrators - Managerial personnel responsible for implementing policy and directing the activities of health care...

Health Facility Closure - The closing of any health facility, e.g., health centers, residential facilities, and hospitals....

Health Facility Environment - Physical surroundings or conditions of a hospital or other health facility and influence of these fa...

Health Facility Merger - The combining of administrative and organizational resources of two or more health care facilities....

Health Facility Moving - The relocation of health care institutions or units thereof. The concept includes equipment relocati...

Health Facility Planning - Areawide planning for health care institutions on the basis of projected consumer need....

Health Facility Size - The physical space or dimensions of a facility. Size may be indicated by bed capacity....

Health Fairs - Community health education events focused on prevention of disease and promotion of health through a...

Health Food - A non-medical term defined by the lay public as a food that has little or no preservatives, which ha...

Health Insurance Portability and Accountability Act - Public Law 104-91, enacted in 1996, is designed to protect health insurance coverage for workers and...

Health Knowledge, Attitudes, Practice - Knowledge, attitudes, and associated behaviors which pertain to health-related topics such as PATHOL...

Health Level Seven - An American National Standards Institute-accredited organization working on specifications to suppo...

Health Literacy - Degree to which individuals have the capacity to obtain, process, and understand basic health inform...

Health Maintenance Organizations - Organized systems for providing comprehensive prepaid health care that have five basic attributes: (...

Health Manpower - The availability of HEALTH PERSONNEL. It includes the demand and recruitment of both professional an...

Health Occupations - Professions or other business activities directed to the cure and prevention of disease. For occupat...

Health Personnel - Men and women working in the provision of health services, whether as individual practitioners or em...

Health Physics - The science concerned with problems of radiation protection relevant to reducing or preventing radia...

Health Plan Implementation - Those actions designed to carry out recommendations pertaining to health plans or programs....

Health Planning - Planning for needed health and/or welfare services and facilities....

Health Planning Councils - Organized groups serving in advisory capacities related to health planning activities....

Health Planning Guidelines - Recommendations for directing health planning functions and policies. These may be mandated by PL93-...

Health Planning Organizations - Organizations involved in all aspects of health planning activities....

Health Planning Support - Financial resources provided for activities related to health planning and development....

Health Planning Technical Assistance - The provision of expert assistance in developing health planning programs, plans as technical materi...

Health Policy - Decisions, usually developed by government policymakers, for determining present and future objectiv...

Health Priorities - Preferentially rated health-related activities or functions to be used in establishing health planni...

Health Promotion - Encouraging consumer behaviors most likely to optimize health potentials (physical and psychosocial)...

Health Records, Personal - Longitudinal patient-maintained records of individual health history and tools that allow individual...

Health Resources - Available manpower, facilities, revenue, equipment, and supplies to produce requisite health care an...

Health Services - Services for the diagnosis and treatment of disease and the maintenance of health....

Health Services Accessibility - The degree to which individuals are inhibited or facilitated in their ability to gain entry to and t...

Health Services Administration - The organization and administration of health services dedicated to the delivery of health care....

Health Services for the Aged - Services for the diagnosis and treatment of diseases in the aged and the maintenance of health in th...

Health Services Misuse - Excessive or unnecessary utilization of health services by patients or physicians....

Health Services Needs and Demand - Health services required by a population or community as well as the health services that the popula...

Health Services Research - The integration of epidemiologic, sociological, economic, and other analytic sciences in the study o...

Health Services, Indigenous - Health care provided to specific cultural or tribal peoples which incorporates local customs, belief...

Health Status - The level of health of the individual, group, or population as subjectively assessed by the individu...

Health Status Disparities - Variation in rates of disease occurrence and disabilities between socioeconomic and /or geographical...

Health Status Indicators - The measurement of the health status for a given population using a variety of indices, including mo...

Health Surveys - A systematic collection of factual data pertaining to health and disease in a human population withi...

Health Systems Agencies - Health planning and resources development agencies which function in each health service area of the...

Health Systems Plans - Statements of goals for the delivery of health services pertaining to the Health Systems Agency serv...

Health Transition - Demographic and epidemiologic changes that have occurred in the last five decades in many developing...

Healthcare Common Procedure Coding System - Uniform method for health care providers and medical suppliers to report professional services, proc...

Healthcare Disparities - Differences in access to or availability of facilities and services...

Healthy People Programs - Healthy People Programs are a set of health objectives to be used by governments, communities, profe...

Healthy Worker Effect - Phenomenon of workers' usually exhibiting overall death rates lower than those of the general popula...

Hearing - The ability or act of sensing and transducing ACOUSTIC STIMULATION to the CENTRAL NERVOUS SYSTEM. It...

Hearing Aids - Wearable sound-amplifying devices that are intended to compensate for impaired hearing. These generi...

Hearing Disorders - Conditions that impair the transmission of auditory impulses and information from the level of the e...

Hearing Impaired Persons - Persons with any degree of loss of hearing that has an impact on their activities of daily living or...

Hearing Loss - A general term for the complete or partial loss of the ability to hear from one or both ears....

Hearing Loss, Bilateral - Partial hearing loss in both ears....

Hearing Loss, Central - Hearing loss due to disease of the AUDITORY PATHWAYS (in the CENTRAL NERVOUS SYSTEM) which originate...

Hearing Loss, Conductive - Hearing loss due to interference with the mechanical reception or amplification of sound to the COCH...

Hearing Loss, Functional - Hearing loss without a physical basis. Often observed in patients with psychological or behavioral d...

Hearing Loss, High-Frequency - Hearing loss in frequencies above 1000 hertz....

Hearing Loss, Mixed Conductive-Sensorineural - Hearing loss due to damage or impairment of both the conductive elements (HEARING LOSS, CONDUCTIVE) ...

Hearing Loss, Noise-Induced - Hearing loss due to exposure to explosive loud noise or chronic exposure to sound level greater than...

Hearing Loss, Sensorineural - Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internall...

Hearing Loss, Sudden - Sensorineural hearing loss which develops suddenly over a period of hours or a few days. It varies i...

Hearing Loss, Unilateral - Partial or complete hearing loss in one ear....

Heart - The hollow, muscular organ that maintains the circulation of the blood....

Heart Aneurysm - A localized bulging or dilatation in the muscle wall of a heart (MYOCARDIUM), usually in the LEFT VE...

Heart Arrest - Cessation of heart beat or MYOCARDIAL CONTRACTION. If it is treated within a few minutes, heart arre...

Heart Arrest, Induced - A procedure to stop the contraction of MYOCARDIUM during HEART SURGERY. It is usually achieved with ...

Heart Atria - The chambers of the heart, to which the BLOOD returns from the circulation....

Heart Auscultation - Act of listening for sounds within the heart....

Heart Block - Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as...

Heart Bypass, Left - Diversion of the flow of blood from the pulmonary veins directly to the aorta, avoiding the left atr...

Heart Bypass, Right - Diversion of the flow of blood from the entrance to the right atrium directly to the pulmonary arter...

Heart Catheterization - Procedure which includes placement of catheter, recording of intracardiac and intravascular pressure...

Heart Conduction System - An impulse-conducting system composed of modified cardiac muscle and having the power of spontaneous...

Heart Defects, Congenital - Developmental abnormalities involving structures of the heart. These defects are present at birth bu...

Heart Diseases - Pathological conditions involving the HEART including its structural and functional abnormalities....

Heart Failure - A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the meta...

Heart Failure, Diastolic - Heart failure caused by abnormal myocardial relaxation during DIASTOLE leading to defective cardiac ...

Heart Failure, Systolic - Heart failure caused by abnormal myocardial contraction during SYSTOLE leading to defective cardiac ...

Heart Injuries - General or unspecified injuries to the heart....

Heart Massage - Rhythmic compression of the heart by pressure applied manually over the sternum (closed heart massag...

Heart Murmurs - Heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs ...

Heart Neoplasms - Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the he...

Heart Rate - The number of times the HEART VENTRICLES contract per unit of time, usually per minute....

Heart Rate, Fetal - The heart rate of the FETUS. The normal range at term is between 120 and 160 beats per minute....

Heart Rupture - Disease-related laceration or tearing of tissues of the heart, including the free-wall MYOCARDIUM; H...

Heart Rupture, Post-Infarction - Laceration or tearing of cardiac tissues appearing after MYOCARDIAL INFARCTION....

Heart Septal Defects - Abnormalities in any part of the HEART SEPTUM resulting in abnormal communication between the left a...

Heart Septal Defects, Atrial - Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications...

Heart Septal Defects, Ventricular - Developmental abnormalities in any portion of the VENTRICULAR SEPTUM resulting in abnormal communica...

Heart Septum - This structure includes the thin muscular atrial septum between the two HEART ATRIA, and the thick m...

Heart Sounds - The sounds heard over the cardiac region produced by the functioning of the heart. There are four di...

Heart Transplantation - The transference of a heart from one human or animal to another....

Heart Valve Diseases - Pathological conditions involving any of the various HEART VALVES and the associated structures (PAP...

Heart Valve Prolapse - Downward displacement of any one of the HEART VALVES from its normal position. This usually results ...

Heart Valve Prosthesis - A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESI...

Heart Valve Prosthesis Implantation - Surgical insertion of synthetic material to repair injured or diseased heart valves....

Heart Valves - Flaps of tissue that prevent regurgitation of BLOOD from the HEART VENTRICLES to the HEART ATRIA or ...

Heart Ventricles - The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNG...

Heart, Artificial - A pumping mechanism that duplicates the output, rate, and blood pressure of the natural heart. It ma...

Heart-Assist Devices - Small pumps, often implantable, designed for temporarily assisting the heart, usually the left ventr...

Heartburn - Substernal pain or burning sensation, usually associated with regurgitation of gastric juice into th...

Heart-Lung Machine - Apparatus that provides mechanical circulatory support during open-heart surgery, by passing the hea...

Heart-Lung Transplantation - The simultaneous, or near simultaneous, transference of heart and lungs from one human or animal to ...

Heartwater Disease - A tick-borne septicemic disease of domestic and wild ruminants caused by EHRLICHIA RUMINANTIUM....

Heat Exhaustion - A clinical syndrome caused by heat stress, such as over-exertion in a hot environment or excessive e...

Heat Stress Disorders - A group of conditions due to overexposure to or overexertion in excess environmental temperature. It...

Heat Stroke - A condition caused by the failure of body to dissipate heat in an excessively hot environment or dur...

Heating - The application of heat to raise the temperature of the environment, ambient or local, or the system...

Heat-Shock Proteins - Proteins which are synthesized in eukaryotic organisms and bacteria in response to hyperthermia and ...

Heat-Shock Proteins, Small - A family of low molecular weight heat-shock proteins that can serve as MOLECULAR CHAPERONES....

Heat-Shock Response - A constellation of responses that occur when an organism is exposed to excessive heat and other envi...

Heavy Chain Disease - A disorder of immunoglobulin synthesis in which large quantities of abnormal heavy chains are excret...

Heavy Ions - Positively-charged atomic nuclei that have been stripped of their electrons. These particles have on...

Heavy Metal Poisoning, Nervous System - Conditions associated with damage or dysfunction of the nervous system caused by exposure to heavy m...

Hebeloma - A genus of ectomycorrhizae basidiomycetous fungi in the family Cortinariaceae. Some species are pois...

Hebrides - A group of islands in the Atlantic Ocean west of Scotland, comprising the Outer Hebrides and the Inn...

Hedeoma - A plant genus of the family LAMIACEAE that is closely related to the European pennyroyal (MENTHA PUL...

Hedera - A plant genus of the family ARALIACEAE. Members contain hederin (olean-12-ene) type TRITERPENES....

Hedgehog Proteins - A family of intercellular signaling proteins that play and important role in regulating the developm...

Hedgehogs - The family Erinaceidae, in the order INSECTIVORA. Most are true hedgehogs possessing a coat of spine...

Hedyotis - A plant genus of the family RUBIACEAE. Members contain anthraquinones and iridoids. H. diffusa is us...

Heel Spur - A bony outgrowth on the lower surface of the CALCANEUS. Though often presenting along with plantar f...

Heinz Bodies - Abnormal intracellular inclusions, composed of denatured hemoglobin, found on the membrane of red bl...

Hela Cells - The first continuously cultured human malignant CELL LINE, derived from the cervical carcinoma of He...

Helianthus - A genus of tall, erect American herbs of the Compositae. The seeds yield oil and are used as food an...

Helichrysum - A plant genus of the family ASTERACEAE. Members contain CHALCONE, helichrysetin, arenarin, and flami...

Helicobacter - A genus of gram-negative, spiral-shaped bacteria that has been isolated from the intestinal tract of...

Helicobacter felis - A species of HELICOBACTER that colonizes in the STOMACH of laboratory MICE; CATS; and DOGS. It is as...

Helicobacter heilmannii - A species of gram-negative, spiral-shaped bacteria found in the gastric mucosa that is associated wi...

Helicobacter hepaticus - A species of HELICOBACTER that colonizes the CECUM and COLON of several strains of MICE, and is asso...

Helicobacter Infections - Infections with organisms of the genus HELICOBACTER, particularly, in humans, HELICOBACTER PYLORI. T...

Helicobacter mustelae - A species of HELICOBACTER commonly associated with STOMACH DISEASES in FERRETS....

Helicobacter pylori - A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curve...

Heliconiaceae - A plant family of the order ZINGIBERALES, subclass Zingiberidae, class Liliopsida....

Heligmosomatoidea - A superfamily of parasitic nematodes which were formerly considered a part of TRICHOSTRONGYLOIDEA. I...

Heliotherapy - The treatment of disease by exposing the body to SUNLIGHT, a therapeutic use of SUNBATHING....

Heliotropium - A plant genus in the family Boraginaceae, order Lamiales, subclass Asteridae. This is the True Helio...

Helium - Helium. A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a col...

Helix (Snails) - A genus of chiefly Eurasian and African land snails including the principal edible snails as well as...

Helix-Loop-Helix Motifs - Recurring supersecondary structures characterized by 20 amino acids folding into two alpha helices c...

Helix-Turn-Helix Motifs - The first DNA-binding protein motif to be recognized. Helix-turn-helix motifs were originally identi...

Helleborus - A plant genus of the family RANUNCULACEAE. Members contain hellebrin (BUFANOLIDES). The extract is t...

HELLP Syndrome - A syndrome of HEMOLYSIS, elevated liver ENZYMES, and low blood platelets count (THROMBOCYTOPENIA). H...

Helminth Proteins - Proteins found in any species of helminth....

Helminthiasis - Infestation with parasitic worms of the helminth class....

Helminthiasis, Animal - Infestation of animals with parasitic worms of the helminth class. The infestation may be experiment...

Helminthosporium - A mitosporic fungal genus including both saprophytes and plant parasites....

Helminths - Commonly known as parasitic worms, this group includes the ACANTHOCEPHALA; NEMATODA; and PLATYHELMIN...

Helper Viruses - Viruses which enable defective viruses to replicate or to form a protein coat by complementing the m...

Helping Behavior - Behaviors associated with the giving of assistance or aid to individuals....

Helplessness, Learned - Learned expectation that one's responses are independent of reward and, hence, do not predict or con...

Helsinki Declaration - An international agreement of the World Medical Association which offers guidelines for conducting e...

Hemadsorption - A phenomenon manifested by an agent or substance adhering to or being adsorbed on the surface of a r...

Hemagglutination - The aggregation of ERYTHROCYTES by AGGLUTININS, including antibodies, lectins, and viral proteins (H...

Hemagglutination Inhibition Tests - Serologic tests in which a known quantity of antigen is added to the serum prior to the addition of ...

Hemagglutination Tests - Sensitive tests to measure certain antigens, antibodies, or viruses, using their ability to agglutin...

Hemagglutination, Viral - Agglutination of ERYTHROCYTES by a virus....

Hemagglutinin Glycoproteins, Influenza Virus - Membrane glycoproteins from influenza viruses which are involved in hemagglutination, virus attachme...

Hemagglutinins - Agents that cause agglutination of red blood cells. They include antibodies, blood group antigens, l...

Hemagglutinins, Viral - Specific hemagglutinin subtypes encoded by VIRUSES....

Hemangioblastoma - A benign tumor of the nervous system that may occur sporadically or in association with VON HIPPEL-L...

Hemangioblasts - Bipotential angio-hematopoietic stem cells that give rise to both HEMATOPOIETIC STEM CELLS and ENDOT...

Hemangioendothelioma - A neoplasm derived from blood vessels, characterized by numerous prominent endothelial cells that oc...

Hemangioendothelioma, Epithelioid - A tumor of medium-to-large veins, composed of plump-to-spindled endothelial cells that bulge into va...

Hemangioma - A vascular anomaly due to proliferation of BLOOD VESSELS that forms a tumor-like mass. The common ty...

Hemangioma, Capillary - A dull red, firm, dome-shaped hemangioma, sharply demarcated from surrounding skin, usually located ...

Hemangioma, Cavernous - A vascular anomaly that is a collection of tortuous BLOOD VESSELS and connective tissue. This tumor-...

Hemangioma, Cavernous, Central Nervous System - A vascular anomaly composed of a collection of large, thin walled tortuous VEINS that can occur in a...

Hemangiopericytoma - A tumor composed of spindle cells with a rich vascular network, which apparently arises from pericyt...

Hemangiosarcoma - A rare malignant neoplasm characterized by rapidly proliferating, extensively infiltrating, anaplast...

Hemarthrosis - Bleeding into the joints. It may arise from trauma or spontaneously in patients with hemophilia....

Hematemesis - Vomiting of blood that is either fresh bright red, or older "coffee-ground" in character. It general...

Hematinics - Agents which improve the quality of the blood, increasing the hemoglobin level and the number of ery...

Hematocele - Hemorrhage into a canal or cavity of the body, such as the space covered by the serous membrane (tun...

Hematocolpos - A blood-filled VAGINA that is obstructed....

Hematocrit - The volume of packed RED BLOOD CELLS in a blood specimen. The volume is measured by centrifugation i...

Hematologic Agents - Drugs that act on blood and blood-forming organs and those that affect the hemostatic system....

Hematologic Diseases - Disorders of the blood and blood forming tissues....

Hematologic Neoplasms - Neoplasms located in the blood and blood-forming tissue (the bone marrow and lymphatic tissue). The ...

Hematologic Tests - Tests used in the analysis of the hemic system....

Hematology - A subspecialty of internal medicine concerned with morphology, physiology, and pathology of the bloo...

Hematoma - A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or ti...

Hematoma, Epidural, Cranial - Accumulation of blood in the EPIDURAL SPACE between the SKULL and the DURA MATER, often as a result ...

Hematoma, Epidural, Spinal - A rare epidural hematoma in the spinal epidural space, usually due to a vascular malformation (CENTR...

Hematoma, Subdural - Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the ...

Hematoma, Subdural, Acute - Accumulation of blood in the SUBDURAL SPACE with acute onset of neurological symptoms. Symptoms may ...

Hematoma, Subdural, Chronic - Accumulation of blood in the SUBDURAL SPACE with delayed onset of neurological symptoms. Symptoms ma...

Hematoma, Subdural, Intracranial - Accumulation of blood in the SUBDURAL SPACE over the CEREBRAL HEMISPHERE....

Hematoma, Subdural, Spinal - Subdural hematoma of the SPINAL CANAL....

Hematometra - Blood-filled UTERUS....

Hematopoiesis - The development and formation of various types of BLOOD CELLS. Hematopoiesis can take place in the B...

Hematopoiesis, Extramedullary - The formation and development of blood cells outside the BONE MARROW, as in the SPLEEN; LIVER; or LY...

Hematopoietic Cell Growth Factors - These growth factors comprise a family of hematopoietic regulators with biological specificities def...

Hematopoietic Stem Cell Mobilization - The release of stem cells from the bone marrow into the peripheral blood circulation for the purpose...

Hematopoietic Stem Cell Transplantation - Transfer of HEMATOPOIETIC STEM CELLS from BONE MARROW or BLOOD between individuals within the same s...

Hematopoietic Stem Cells - Progenitor cells from which all blood cells derive....

Hematoporphyrin Derivative - A complex mixture of monomeric and aggregated porphyrins used in the photodynamic therapy of tumors ...

Hematoporphyrin Photoradiation - Photochemotherapy using visible light, usually red, topically or delivered locally by fiberoptic pro...

Hematoporphyrins - Iron-free derivatives of heme with 4 methyl groups, 2 hydroxyethyl groups and 2 propionic acid group...

Hematoxylin - A dye obtained from the heartwood of logwood (Haematoxylon campechianum Linn., Leguminosae) used as ...

Hematuria - Presence of blood in the urine....

Heme - The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group ...

Heme Oxygenase (Decyclizing) - A mixed function oxidase enzyme which during hemoglobin catabolism catalyzes the degradation of heme...

Heme Oxygenase-1 - A ubiquitous stress-responsive enzyme that catalyzes the oxidative cleavage of HEME to yield IRON; C...

Hemeproteins - Proteins that contain an iron-porphyrin, or heme, prosthetic group resembling that of hemoglobin. (F...

Hemerocallis - A plant genus of the family LILIACEAE. Members contain steroidal saponins....

Hemerythrin - A non-heme iron protein consisting of eight apparently identical subunits each containing 2 iron ato...

Hemianopsia - Partial or complete loss of vision in one half of the visual field(s) of one or both eyes. Subtypes ...

Hemibody Irradiation - Irradiation of one half or both halves of the body in the treatment of disseminated cancer or widesp...

Hemic and Immune Systems - Organs involved in the production of BLOOD, including the cellular and the molecular components esse...

Hemic and Lymphatic Diseases - Hematologic diseases and diseases of the lymphatic system collectively. Hemic diseases include disor...

Hemicentrotus - A genus of SEA URCHINS in the family Strongylocentrotidae with a hemicyclic apical disk and short sp...

Hemicholinium 3 - A potent inhibitor of the high affinity uptake system for CHOLINE. It has less effect on the low aff...

Hemidesmosomes - An anchoring junction of the cell to a non-cellular substrate, similar in morphology to halves of DE...

Hemidesmus - A plant genus of the family ASCLEPIADACEAE. It is a source of PREGNANES. It is sometimes an adultera...

Hemifacial Spasm - Recurrent clonic contraction of facial muscles, restricted to one side. It may occur as a manifestat...

Hemin - Chloro(7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-N(21),N(22),N(23)...

Hemipelvectomy - Amputation of a lower limb through the sacroiliac joint....

Hemiplegia - Severe or complete loss of motor function on one side of the body. This condition is usually caused ...

Hemiptera - A large order of insects characterized by having the mouth parts adapted to piercing or sucking. It ...

Hemispherectomy - A neurosurgical procedure that removes or disconnects the epileptogenic CEREBRAL CORTEX of a hemisph...

Hemiterpenes - The five-carbon building blocks of TERPENES that derive from MEVALONIC ACID or deoxyxylulose phospha...

Hemlock - Any of several poisonous plants, commonly called poison hemlock, of the CICUTA or CONIUM genus. The ...

Hemobilia - Hemorrhage in or through the BILIARY TRACT due to trauma, inflammation, CHOLELITHIASIS, vascular dis...

Hemochromatosis - A disorder due to the deposition of hemosiderin in the parenchymal cells, causing tissue damage and ...

Hemocytes - Any blood or formed element especially in invertebrates....

Hemodiafiltration - The combination of hemodialysis and hemofiltration either simultaneously or sequentially. Convective...

Hemodialysis Solutions - Solutions prepared for hemodialysis. The composition of the pre-dialysis solution may be varied in o...

Hemodialysis Units, Hospital - Hospital units in which care is provided the hemodialysis patient. This includes hemodialysis center...

Hemodialysis, Home - Long-term maintenance hemodialysis in the home....

Hemodilution - Reduction of blood viscosity usually by the addition of cell free solutions. Used clinically (1) in ...

Hemodynamics - The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM....

Hemofiltration - Extracorporeal ultrafiltration technique without hemodialysis for treatment of fluid overload and el...

Hemoglobin A - Normal adult human hemoglobin. The globin moiety consists of two alpha and two beta chains....

Hemoglobin A, Glycosylated - Minor hemoglobin components of human erythrocytes designated A1a, A1b, and A1c. Hemoglobin A1c is mo...

Hemoglobin A2 - An adult hemoglobin component normally present in hemolysates from human erythrocytes in concentrati...

Hemoglobin C - A commonly occurring abnormal hemoglobin in which lysine replaces a glutamic acid residue at the six...

Hemoglobin C Disease - A disease characterized by compensated hemolysis with a normal hemoglobin level or a mild to moderat...

Hemoglobin E - An abnormal hemoglobin that results from the substitution of lysine for glutamic acid at position 26...

Hemoglobin H - An abnormal hemoglobin composed of four beta chains. It is caused by the reduced synthesis of the al...

Hemoglobin J - A group of abnormal hemoglobins with similar electrophoretic characteristics. They have faster elect...

Hemoglobin M - A group of abnormal hemoglobins in which amino acid substitutions take place in either the alpha or ...

Hemoglobin SC Disease - One of the sickle cell disorders characterized by the presence of both hemoglobin S and hemoglobin C...

Hemoglobin Subunits - The PROTEIN SUBUNITS that comprise multimeric HEMOGLOBINS....

Hemoglobin, Sickle - An abnormal hemoglobin resulting from the substitution of valine for glutamic acid at position 6 of ...

Hemoglobinometry - Measurement of hemoglobin concentration in blood....

Hemoglobinopathies - A group of inherited disorders characterized by structural alterations within the hemoglobin molecul...

Hemoglobins - The oxygen-carrying proteins of ERYTHROCYTES. They are found in all vertebrates and some invertebrat...

Hemoglobins, Abnormal - Hemoglobins characterized by structural alterations within the molecule. The alteration can be eithe...

Hemoglobinuria - The presence of free HEMOGLOBIN in the URINE, indicating hemolysis of ERYTHROCYTES within the vascul...

Hemoglobinuria, Paroxysmal - A condition characterized by the recurrence of HEMOGLOBINURIA caused by intravascular HEMOLYSIS. In ...

Hemolymph - The blood/lymphlike nutrient fluid of some invertebrates....

Hemolysin Factors - Plasmids controlling the synthesis of hemolysin by bacteria....

Hemolysin Proteins - Proteins from BACTERIA and FUNGI that are soluble enough to be secreted to target ERYTHROCYTES and i...

Hemolysis - The destruction of ERYTHROCYTES by many different causal agents such as antibodies, bacteria, chemic...

Hemolytic Agents - Substances that are toxic to blood in general, including the clotting mechanism; hematotoxins may re...

Hemolytic-Uremic Syndrome - A syndrome that is associated with microvascular diseases of the KIDNEY, such as RENAL CORTICAL NECR...

Hemoperfusion - Removal of toxins or metabolites from the circulation by the passing of blood, within a suitable ext...

Hemoperitoneum - Accumulations of blood in the PERITONEAL CAVITY due to internal HEMORRHAGE....

Hemophilia A - The classic hemophilia resulting from a deficiency of factor VIII. It is an inherited disorder of bl...

Hemophilia B - A deficiency of blood coagulation factor IX inherited as an X-linked disorder. (Also known as Christ...

Hemopneumothorax - Collection of air and blood in the pleural cavity....

Hemoptysis - Expectoration or spitting of blood originating from any part of the RESPIRATORY TRACT, usually from ...

Hemorheology - The deformation and flow behavior of BLOOD and its elements i.e., PLASMA; ERYTHROCYTES; WHITE BLOOD ...

Hemorrhage - Bleeding or escape of blood from a vessel....

Hemorrhagic Disease Virus, Epizootic - A species of ORBIVIRUS causing a fatal disease in deer. It is transmitted by flies of the genus Culi...

Hemorrhagic Disease Virus, Rabbit - A species in the genus LAGOVIRUS which causes hemorrhagic disease, including hemorrhagic septicemia...

Hemorrhagic Disorders - Spontaneous or near spontaneous bleeding caused by a defect in clotting mechanisms (BLOOD COAGULATIO...

Hemorrhagic Fever Virus, Crimean-Congo - A species of NAIROVIRUS of the family BUNYAVIRIDAE. It is primarily transmitted by ticks and causes ...

Hemorrhagic Fever with Renal Syndrome - An acute febrile disease occurring predominately in Asia. It is characterized by fever, prostration,...

Hemorrhagic Fever, American - Diseases caused by American hemorrhagic fever viruses (ARENAVIRUSES, NEW WORLD)....

Hemorrhagic Fever, Crimean - A severe, often fatal disease in humans caused by the Crimean-Congo hemorrhagic fever virus (HEMORRH...

Hemorrhagic Fever, Ebola - A highly fatal, acute hemorrhagic fever, clinically very similar to MARBURG VIRUS DISEASE, caused by...

Hemorrhagic Fever, Omsk - Infection with the Omsk hemorrhagic fever virus, a Flavivirus....

Hemorrhagic Fevers, Viral - A group of viral diseases of diverse etiology but having many similar clinical characteristics; incr...

Hemorrhagic Septicemia - Any of several bacterial diseases, usually caused by PASTEURELLA MULTOCIDA, marked by the presence o...

Hemorrhagic Septicemia, Viral - A systemic infection of various salmonid and a few nonsalmonid fishes caused by Viral hemorrhagic se...

Hemorrhagic Syndrome, Bovine - Clinically severe acute disease of cattle caused by noncytopathic forms of Bovine viral diarrhea vir...

Hemorrhoids - Swollen veins in the lower part of the RECTUM or ANUS. Hemorrhoids can be inside the anus (internal)...

Hemosiderosis - Conditions in which there is a generalized increase in the iron stores of body tissues, particularly...

Hemospermia - Blood in the SEMEN, usually due to INFLAMMATION of the PROSTATE, the SEMINAL VESICLES, or both....

Hemostasis - The process which spontaneously arrests the flow of BLOOD from vessels carrying blood under pressure...

Hemostasis, Endoscopic - Control of bleeding performed through the channel of the endoscope. Techniques include use of lasers...

Hemostasis, Surgical - Control of bleeding during or after surgery....

Hemostatic Disorders - Pathological processes involving the integrity of blood circulation. Hemostasis depends on the integ...

Hemostatic Techniques - Techniques for controlling bleeding....

Hemostatics - Agents acting to arrest the flow of blood. Absorbable hemostatics arrest bleeding either by the form...

Hemothorax - Hemorrhage within the pleural cavity....

Hempa - A chemosterilant agent that is anticipated to be a carcinogen....

Hendra Virus - A species of HENIPAVIRUS first identified in Australia in 1994 in HORSES and transmitted to humans. ...

Henipavirus - A genus in the subfamily PARAMYXOVIRINAE, family PARAMYXOVIRIDAE. It contains species that infect an...

Henipavirus Infections - Infections with viruses of the genus HENIPAVIRUS, family PARAMYXOVIRIDAE....

Hep G2 Cells - A human liver tumor cell line used to study a variety of liver-specific metabolic functions....

Hepacivirus - A genus of FLAVIVIRIDAE causing parenterally-transmitted HEPATITIS C which is associated with transf...

Hepadnaviridae - A family of hepatotropic DNA viruses which contains double-stranded DNA genomes and causes hepatitis...

Hepadnaviridae Infections - Virus diseases caused by the HEPADNAVIRIDAE....

Heparan Sulfate Proteoglycans - Ubiquitous macromolecules associated with the cell surface and extracellular matrix of a wide range ...

Heparin - A highly acidic mucopolysaccharide formed of equal parts of sulfated D-glucosamine and D-glucuronic ...

Heparin Antagonists - Coagulant substances inhibiting the anticoagulant action of heparin....

Heparin Cofactor II - A sulfated plasma protein with the MW of approximately 66kDa that resembles ANTITHROMBIN III. The pr...

Heparin Lyase - An enzyme of the isomerase class that catalyzes the eliminative cleavage of polysaccharides containi...

Heparin, Low-Molecular-Weight - Heparin fractions with a molecular weight usually between 4000 and 6000 kD. These low-molecular-weig...

Heparinoids - Heparin derivatives. The term has also been used more loosely to include naturally occurring and syn...

Heparitin Sulfate - A heteropolysaccharide that is similar in structure to HEPARIN. It accumulates in individuals with M...

Hepatectomy - Excision of all or part of the liver. (Dorland, 28th ed)...

Hepatic Artery - A branch of the celiac artery that distributes to the stomach, pancreas, duodenum, liver, gallbladde...

Hepatic Duct, Common - Predominantly extrahepatic bile duct which is formed by the junction of the right and left hepatic d...

Hepatic Encephalopathy - A syndrome characterized by central nervous system dysfunction in association with LIVER FAILURE, in...

Hepatic Insufficiency - Conditions in which the LIVER functions fall below the normal ranges. Severe hepatic insufficiency m...

Hepatic Stellate Cells - Perisinusoidal cells of the liver, located in the space of Disse between HEPATOCYTES and sinusoidal ...

Hepatic Veins - Veins which drain the liver....

Hepatic Veno-Occlusive Disease - Liver disease that is caused by injuries to the ENDOTHELIAL CELLS of the vessels and subendothelial ...

Hepatitis - INFLAMMATION of the LIVER....

Hepatitis A - INFLAMMATION of the LIVER in humans caused by a member of the HEPATOVIRUS genus, HUMAN HEPATITIS A V...

Hepatitis A Antibodies - Antibodies to the HEPATITIS A ANTIGENS including antibodies to envelope, core, and non-structural pr...

Hepatitis A Antigens - Antigens produced by various strains of HEPATITIS A VIRUS such as the human hepatitis A virus (HEPAT...

Hepatitis A Vaccines - Vaccines or candidate vaccines used to prevent infection with hepatitis A virus (HEPATOVIRUS)....

Hepatitis A virus - A species in the genus HEPATOVIRUS containing one serotype and two strains: HUMAN HEPATITIS A VIRUS ...

Hepatitis A Virus, Human - A strain of HEPATITIS A VIRUS which causes hepatitis in humans. The virus replicates in hepatocytes ...

Hepatitis Antibodies - Immunoglobulins raised by any form of viral hepatitis; some of these antibodies are used to diagnose...

Hepatitis Antigens - Antigens from any of the hepatitis viruses including surface, core, and other associated antigens....

Hepatitis B - INFLAMMATION of the LIVER in humans caused by a member of the ORTHOHEPADNAVIRUS genus, HEPATITIS B V...

Hepatitis B Antibodies - Antibodies to the HEPATITIS B ANTIGENS, including antibodies to the surface (Australia) and core of ...

Hepatitis B Antigens - Antigens of the virion of the HEPATITIS B VIRUS or the Dane particle, its surface (HEPATITIS B SURFA...

Hepatitis B Core Antigens - The hepatitis B antigen within the core of the Dane particle, the infectious hepatitis virion....

Hepatitis B e Antigens - A closely related group of antigens found in the plasma only during the infective phase of hepatitis...

Hepatitis B Surface Antigens - Those hepatitis B antigens found on the surface of the Dane particle and on the 20 nm spherical and ...

Hepatitis B Vaccines - Vaccines or candidate vaccines containing inactivated hepatitis B or some of its component antigens ...

Hepatitis B virus - The type species of the genus ORTHOHEPADNAVIRUS which causes human HEPATITIS B and is also apparentl...

Hepatitis B Virus, Duck - A DNA virus that closely resembles human hepatitis B virus. It has been recovered from naturally inf...

Hepatitis B Virus, Woodchuck - An ORTHOHEPADNAVIRUS causing chronic liver disease and hepatocellular carcinoma in woodchucks. It cl...

Hepatitis B, Chronic - INFLAMMATION of the LIVER in humans caused by HEPATITIS B VIRUS lasting six months or more. It is pr...

Hepatitis C - INFLAMMATION of the LIVER in humans caused by HEPATITIS C VIRUS, a single-stranded RNA virus. Its in...

Hepatitis C Antibodies - Antibodies to the HEPATITIS C ANTIGENS including antibodies to envelope, core, and non-structural pr...

Hepatitis C Antigens - Antigens of the virions of HEPACIVIRUS, their surface, core, or other associated antigens....

Hepatitis C, Chronic - INFLAMMATION of the LIVER in humans that is caused by HEPATITIS C VIRUS lasting six months or more. ...

Hepatitis D - INFLAMMATION of the LIVER in humans caused by HEPATITIS DELTA VIRUS, a defective RNA virus that can ...

Hepatitis D, Chronic - INFLAMMATION of the LIVER in humans caused by HEPATITIS DELTA VIRUS in conjunction with HEPATITIS B ...

Hepatitis delta Antigens - Antigens produced by various strains of HEPATITIS D VIRUS....

Hepatitis Delta Virus - A defective virus, containing particles of RNA nucleoprotein in virion-like form, present in patient...

Hepatitis E - Acute INFLAMMATION of the LIVER in humans; caused by HEPATITIS E VIRUS, a non-enveloped single-stran...

Hepatitis E virus - A positive-stranded RNA virus species in the genus HEPEVIRUS, causing enterically-transmitted non-A,...

Hepatitis Virus, Duck - Unassigned species, in the family PICORNAVIRIDAE, causing high mortality in ducklings 3 days to 3 we...

Hepatitis Viruses - Any of the viruses that cause inflammation of the liver. They include both DNA and RNA viruses as we...

Hepatitis, Alcoholic - INFLAMMATION of the LIVER due to ALCOHOL ABUSE. It is characterized by NECROSIS of HEPATOCYTES, infi...

Hepatitis, Animal - INFLAMMATION of the LIVER in non-human animals....

Hepatitis, Autoimmune - A chronic self-perpetuating hepatocellular INFLAMMATION of unknown cause, usually with HYPERGAMMAGLO...

Hepatitis, Chronic - INFLAMMATION of the LIVER with ongoing hepatocellular injury for 6 months or more, characterized by ...

Hepatitis, Infectious Canine - A contagious disease caused by canine adenovirus (ADENOVIRUSES, CANINE) infecting the LIVER, the EYE...

Hepatitis, Viral, Animal - INFLAMMATION of the LIVER in animals due to viral infection....

Hepatitis, Viral, Human - INFLAMMATION of the LIVER in humans due to infection by VIRUSES. There are several significant types...

Hepatoblastoma - A malignant neoplasm occurring in young children, primarily in the liver, composed of tissue resembl...

Hepatocyte Growth Factor - Multifunctional growth factor which regulates both cell growth and cell motility. It exerts a strong...

Hepatocyte Nuclear Factor 1 - A transcription factor that regulates the expression of a large set of hepatic proteins including SE...

Hepatocyte Nuclear Factor 1-alpha - Hepatocyte nuclear factor 1-alpha is a transcription factor found in the LIVER; PANCREAS; and KIDNEY...

Hepatocyte Nuclear Factor 1-beta - A hepatocyte nuclear factor that is closely related to HEPATOCYTE NUCLEAR FACTOR 1-ALPHA but is only...

Hepatocyte Nuclear Factor 3-alpha - A forkhead transcription factor that is an essential activator of GLUCAGON gene expression....

Hepatocyte Nuclear Factor 3-beta - A forkhead transcription factor that regulates expression of metabolic GENES and is involved in EMBR...

Hepatocyte Nuclear Factor 3-gamma - A winged-helix transcription factor that regulates GENE expression in metabolic tissues. It plays a ...

Hepatocyte Nuclear Factor 4 - A subfamily of nuclear receptors that regulate GENETIC TRANSCRIPTION of a diverse group of GENES inv...

Hepatocyte Nuclear Factor 6 - A onecut transcription factor that regulates expression of GENES involved in EMBRYONIC DEVELOPMENT o...

Hepatocyte Nuclear Factors - Hepatocyte nuclear factors are a family of evolutionarily conserved transcription factors that are p...

Hepatocytes - The main structural component of the LIVER. They are specialized EPITHELIAL CELLS that are organized...

Hepatolenticular Degeneration - A rare autosomal recessive disease characterized by the deposition of copper in the BRAIN; LIVER; CO...

Hepatomegaly - Enlargement of the liver....

Hepatopancreas - A primitive form of digestive gland found in marine ARTHROPODS, that contains cells similar to those...

Hepatophyta - A plant division. They are simple plants that lack vascular tissue and possess rudimentary rootlike ...

Hepatopulmonary Syndrome - A syndrome characterized by the clinical triad of advanced chronic liver disease, pulmonary vascular...

Hepatorenal Syndrome - Functional KIDNEY FAILURE in patients with liver disease, usually LIVER CIRRHOSIS or portal hyperten...

Hepatovirus - A genus of PICORNAVIRIDAE causing infectious hepatitis naturally in humans and experimentally in oth...

HEPES - A dipolar ionic buffer....

Hepevirus - An unassigned genus of RNA viruses with a single officially described species, HEPATITIS E VIRUS. A ...

Heptachlor - A man-made compound previously used to control termites and other insects. Even though production of...

Heptachlor Epoxide - An oxidation product of HEPTACHLOR formed by many plants and animals, including humans, after exposu...

Heptaminol - An amino alcohol that has been used as a myocardial stimulant and vasodilator and to relieve broncho...

Heptanes - Seven-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives....

Heptanoates - Salts and esters of the 7-carbon saturated monocarboxylic acid heptanoic acid....

Heptanoic Acids - 7-carbon saturated monocarboxylic acids....

Heptanol - A colorless liquid with a fragrant odor. It is used as an intermediate, solvent and in cosmetics....

Heracleum - A plant genus of the family APIACEAE. Members contain COUMARINS....

Herbal Medicine - The study of medicines derived from botanical sources....

Herbals - Works such as books on herbs or plants usually describing their medicinal value. (Random House Unabr...

Herbaspirillum - A genus of gram-negative bacteria in the family OXALOBACTERACEAE, comprised of vibrioid or sometimes...

Herb-Drug Interactions - The effect of herbs, other PLANTS, or PLANT EXTRACTS on the activity, metabolism, or toxicity of dru...

Herbicide Resistance - Diminished or failed response of PLANTS to HERBICIDES....

Herbicides - Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE)...

Hereditary Angioedema Type III - A form of hereditary angioedema that occurs in women and is precipitated or worsened by high ESTROGE...

Hereditary Angioedema Types I and II - Forms of hereditary angioedema that occur due to mutations in the gene for COMPLEMENT C1 INHIBITOR P...

Hereditary Autoinflammatory Diseases - Hereditary inflammation conditions, characterized by recurrent episodes of systemic inflammation. Co...

Hereditary Central Nervous System Demyelinating Diseases - Inherited conditions characterized by a loss of myelin in the central nervous system....

Hereditary Sensory and Autonomic Neuropathies - A group of inherited disorders characterized by degeneration of dorsal root and autonomic ganglion c...

Hereditary Sensory and Motor Neuropathy - A group of slowly progressive inherited disorders affecting motor and sensory peripheral nerves. Sub...

Heredity - The transmission of traits encoded in GENES from parent to offspring....

Heredodegenerative Disorders, Nervous System - Inherited disorders characterized by progressive atrophy and dysfunction of anatomically or physiolo...

Hermanski-Pudlak Syndrome - Syndrome characterized by the triad of oculocutaneous albinism (ALBINISM, OCULOCUTANEOUS); PLATELET ...

Hermaphroditism - A state of intersex or sexual ambiguity, involving the GENOTYPE, the GONADS, the reproductive tract,...

Hermaphroditism, True - A rare condition of sexual ambiguity in which the individual possesses gonadal tissues of both SEXES...

Hermissenda - A genus of marine sea slugs in the family Glaucidae, superorder GASTROPODA, found on the Pacific coa...

Hernandiaceae - A plant family of the order Laurales, subclass Magnoliidae, class Magnoliopsida. Members contain cyt...

Hernia - Protrusion of tissue, structure, or part of an organ through the muscular tissue or the membrane by...

Hernia, Abdominal - A protrusion of abdominal structures through the retaining ABDOMINAL WALL. It involves two parts: an...

Hernia, Diaphragmatic - Protrusion of abdominal structures into the THORAX as a result of congenital or traumatic defects in...

Hernia, Diaphragmatic, Traumatic - The type of DIAPHRAGMATIC HERNIA caused by TRAUMA or injury, usually to the ABDOMEN....

Hernia, Femoral - A groin hernia occurring inferior to the inguinal ligament and medial to the FEMORAL VEIN and FEMORA...

Hernia, Hiatal - STOMACH herniation located at or near the diaphragmatic opening for the ESOPHAGUS, esophageal hiatus...

Hernia, Inguinal - An abdominal hernia with an external bulge in the GROIN region. It can be classified by the location...

Hernia, Obturator - A pelvic hernia through the obturator foramen, a large aperture in the hip bone normally covered by ...

Hernia, Umbilical - A HERNIA due to an imperfect closure or weakness of the umbilical ring. It appears as a skin-covered...

Hernia, Ventral - A hernia caused by weakness of the anterior ABDOMINAL WALL due to midline defects, previous incision...

Heroin - A narcotic analgesic that may be habit-forming. It is a controlled substance (opium derivative) list...

Heroin Dependence - Strong dependence, both physiological and emotional, upon heroin....

Herpes Genitalis - Infection of the genitals (GENITALIA) with HERPES SIMPLEX VIRUS in either the males or the females....

Herpes Labialis - Herpes simplex, caused by type 1 virus, primarily spread by oral secretions and usually occurring as...

Herpes Simplex - A group of acute infections caused by herpes simplex virus type 1 or type 2 that is characterized by...

Herpes Simplex Virus Protein Vmw65 - Trans-acting protein that combines with host factors to induce immediate early gene transcription in...

Herpes Simplex Virus Vaccines - Vaccines or candidate vaccines used to prevent infection with viruses from the genus SIMPLEXVIRUS. T...

Herpes Zoster - An acute infectious, usually self-limited, disease believed to represent activation of latent varice...

Herpes Zoster Ophthalmicus - Virus infection of the Gasserian ganglion and its nerve branches characterized by pain and vesicular...

Herpes Zoster Oticus - A syndrome characterized by facial palsy in association with a herpetic eruption of the external aud...

Herpes Zoster Vaccine - An attenuated vaccine used to prevent and/or treat HERPES ZOSTER, a disease caused by HUMAN HERPESVI...

Herpestidae - The family of agile, keen-sighted mongooses of Asia and Africa that feed on RODENTS and SNAKES....

Herpesviridae - A family of enveloped, linear, double-stranded DNA viruses infecting a wide variety of animals. Subf...

Herpesviridae Infections - Virus diseases caused by the HERPESVIRIDAE....

Herpesvirus 1, Bovine - A species of VARICELLOVIRUS that causes INFECTIOUS BOVINE RHINOTRACHEITIS and other associated syndr...

Herpesvirus 1, Canid - A species of VARICELLOVIRUS virus that causes a disease in newborn puppies....

Herpesvirus 1, Cercopithecine - A species of SIMPLEXVIRUS that causes vesicular lesions of the mouth in monkeys. When the virus is t...

Herpesvirus 1, Equid - A species of VARICELLOVIRUS causing abortion and respiratory disease in horses....

Herpesvirus 1, Gallid - The type species of the genus ILTOVIRUS found on every continent and affecting mainly chickens and o...

Herpesvirus 1, Human - The type species of SIMPLEXVIRUS causing most forms of non-genital herpes simplex in humans. Primary...

Herpesvirus 1, Meleagrid - A species in the genus MAREK'S DISEASE-LIKE VIRUSES, in the family HERPESVIRIDAE, infecting turkeys....

Herpesvirus 1, Ranid - A species of the family HERPESVIRIDAE, whose genus is so far unassigned. It is probably the causativ...

Herpesvirus 1, Suid - A species of VARICELLOVIRUS producing a respiratory infection (PSEUDORABIES) in swine, its natural h...

Herpesvirus 2, Bovine - A species of SIMPLEXVIRUS causing mammillitis in cattle in Great Britain and South Africa....

Herpesvirus 2, Gallid - The type species of the genus MARDIVIRUS in the family HERPESVIRIDAE. It is the etiologic agent of M...

Herpesvirus 2, Human - A species of SIMPLEXVIRUS associated with genital infections (HERPES GENITALIS). It is transmitted b...

Herpesvirus 2, Saimiriine - The type species of RHADINOVIRUS, in the subfamily GAMMAHERPESVIRINAE, isolated from squirrel monkey...

Herpesvirus 3, Equid - A species of VARICELLOVIRUS causing coital exanthema in horses....

Herpesvirus 3, Gallid - A species in the genus MAREK'S DISEASE-LIKE VIRUSES, in the family HERPESVIRIDAE, infecting chickens...

Herpesvirus 3, Human - The type species of VARICELLOVIRUS causing CHICKENPOX (varicella) and HERPES ZOSTER (shingles) in hu...

Herpesvirus 4, Bovine - A species in the genus RHADINOVIRUS, subfamily GAMMAHERPESVIRINAE, infecting cattle....

Herpesvirus 4, Equid - A species of VARICELLOVIRUS and the chief cause of rhinopneumonitis in horses....

Herpesvirus 4, Human - The type species of LYMPHOCRYPTOVIRUS, subfamily GAMMAHERPESVIRINAE, infecting B-cells in humans. It...

Herpesvirus 5, Bovine - A species of VARICELLOVIRUS that causes a fatal MENINGOENCEPHALITIS in calves....

Herpesvirus 6, Human - The type species of ROSEOLOVIRUS isolated from patients with AIDS and other LYMPHOPROLIFERATIVE DISO...

Herpesvirus 7, Human - A species in the genus ROSEOLOVIRUS, of the family HERPESVIRIDAE. It was isolated from activated, C...

Herpesvirus 8, Human - A species in the genus RHADINOVIRUS, subfamily GAMMAHERPESVIRINAE, isolated from patients with AIDS-...

Herpesvirus Vaccines - Vaccines or candidate vaccines used to prevent infection by any virus from the family HERPESVIRIDAE....

Hesperidin - A flavanone glycoside found in CITRUS fruit peels....

Hetastarch - A derivative of STARCH used as a plasma substitute in the treatment of hemorrhage....

Heterochromatin - The portion of chromosome material that remains condensed and is transcriptionally inactive during I...

Heterocyclic Compounds - Ring compounds having atoms other than carbon in their nuclei. (Grant & Hackh's Chemical Dictionary,...

Heterocyclic Compounds with 4 or More Rings - A class of organic compounds containing four or more ring structures, one of which is made up of mor...

Heterocyclic Compounds, 1-Ring - A class of organic compounds containing a ring structure made up of more than one kind of atom, usua...

Heterocyclic Compounds, 2-Ring - A class of organic compounds containing two ring structures, one of which is made up of more than on...

Heterocyclic Compounds, 3-Ring - A class of organic compounds containing three ring structures, one of which is made up of more than ...

Heterocyclic Compounds, Bridged-Ring - A class of organic compounds which contain two rings that share a pair of bridgehead carbon atoms....

Heterocyclic Oxides - Oxides of a ring compound having atoms other than carbon in its ring....

Heteroduplex Analysis - A method of detecting gene mutation by mixing PCR-amplified mutant and wild-type DNA followed by den...

Heterogeneous-Nuclear Ribonucleoprotein D - A heterogeneous-nuclear ribonucleoprotein that has specificity for AU-rich elements found in the 3'-...

Heterogeneous-Nuclear Ribonucleoprotein Group A-B - A class of closely related heterogeneous-nuclear ribonucleoproteins of approximately 34-40 kDa in si...

Heterogeneous-Nuclear Ribonucleoprotein Group C - A group of closely related heterogeneous-nuclear ribonucleoproteins of approximately 41-43 kDa in si...

Heterogeneous-Nuclear Ribonucleoprotein Group F-H - A group of closely-related heterogeneous-nuclear ribonucleoproteins that are involved in pre-mRNA sp...

Heterogeneous-Nuclear Ribonucleoprotein Group M - A group of closely-related 72-74-kDa heterogeneous-nuclear ribonucleoproteins that are involved in R...

Heterogeneous-Nuclear Ribonucleoprotein K - A heterogeneous-nuclear ribonucleoprotein found in the CELL NUCLEUS and the CYTOPLASM. Heterogeneous...

Heterogeneous-Nuclear Ribonucleoprotein L - A heterogenous-nuclear ribonucleoprotein found associated with most nascent transcripts, most notabl...

Heterogeneous-Nuclear Ribonucleoprotein U - A heterogeneous-nuclear ribonucleoprotein found associated with the NUCLEAR MATRIX....

Heterogeneous-Nuclear Ribonucleoproteins - A family of ribonucleoproteins that were originally found as proteins bound to nascent RNA transcrip...

Heterophyidae - A family of intestinal flukes of the class Trematoda which occurs in animals and man. Some of the ge...

Heteroptera - A suborder of HEMIPTERA, called true bugs, characterized by the possession of two pairs of wings. It...

Heterosexuality - The sexual attraction or relationship between members of the opposite SEX....

Heterotrimeric GTP-Binding Proteins - GTP-BINDING PROTEINS that contain three non-identical subunits. They are found associated with membe...

Heterotrophic Processes - The processes by which organisms utilize organic substances as their nutrient sources. Contrasts wit...

Heterozygote - An individual having different alleles at one or more loci regarding a specific character....

Heterozygote Detection - Identification of genetic carriers for a given trait....

Heuchera - A plant genus of the family SAXIFRAGACEAE with dark green round or heart-shaped leaves and tiny flow...

Hevea - A plant genus of the family EUPHORBIACEAE, order Euphorbiales, subclass Rosidae. Commercial natural...

Hexachlorobenzene - An agricultural fungicide and seed treatment agent....

Hexachlorophene - A chlorinated bisphenol antiseptic with a bacteriostatic action against Gram-positive organisms, but...

Hexadimethrine - A synthetic polymer which agglutinates red blood cells. It is used as a heparin antagonist....

Hexamethonium - A nicotinic cholinergic antagonist often referred to as the prototypical ganglionic blocker. It is p...

Hexamethonium Compounds - Compounds containing the hexamethylenebis(trimethylammonium) cation. Members of this group frequentl...

Hexanes - Six-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives. Vario...

Hexanols - Isomeric forms and derivatives of hexanol (C6H11OH)....

Hexanones - 6-carbon straight-chain or branched ketones....

Hexestrol - A synthetic estrogen that has been used as a hormonal antineoplastic agent....

Hexetidine - A bactericidal and fungicidal antiseptic. It is used as a 0.1% mouthwash for local infections and or...

Hexobarbital - A barbiturate that is effective as a hypnotic and sedative....

Hexobendine - A potent vasoactive agent that dilates cerebral and coronary arteries, but slightly constricts femor...

Hexokinase - An enzyme that catalyzes the conversion of ATP and a D-hexose to ADP and a D-hexose 6-phosphate. D-G...

Hexoprenaline - Stimulant of adrenergic beta 2 receptors. It is used as a bronchodilator, antiasthmatic agent, and t...

Hexosaminidase A - A mammalian beta-hexosaminidase isoform that is a heteromeric protein comprized of both hexosaminida...

Hexosaminidase B - A mammalian beta-hexosaminidase isoform that is comprized of hexosaminidase beta subunits. Deficienc...

Hexosaminidases - Enzymes that catalyze the hydrolysis of N-acylhexosamine residues in N-acylhexosamides. Hexosaminida...

Hexosyltransferases - Enzymes that catalyze the transfer of hexose groups. EC 2.4.1.-....

Hexuronic Acids - Term used to designate tetrahydroxy aldehydic acids obtained by oxidation of hexose sugars, i.e. glu...

Hexylresorcinol - A substituted dihydroxybenzene that is used topically as an antiseptic for the treatment of minor sk...

Heymann Nephritis Antigenic Complex - A complex of antigenic proteins obtained from the brush border of kidney tubules. It contains two pr...

Hibernation - The dormant state in which some warm-blooded animal species pass the winter. It is characterized by ...

Hibiscus - A plant genus of the family MALVACEAE. Members contain LIGNANS. H. cannabinus is a source of textile...

Hiccup - A spasm of the diaphragm that causes a sudden inhalation followed by rapid closure of the glottis wh...

Hidradenitis - The inflammation of a sweat gland (usually of the apocrine type). The condition can be idiopathic or...

Hidradenitis Suppurativa - A chronic suppurative and cicatricial disease of the apocrine glands occurring chiefly in the axilla...

Hidrocystoma - A cystic form of sweat gland adenoma (ADENOMA, SWEAT GLAND). It is produced by the cystic proliferat...

Hierarchy, Social - Social rank-order established by certain behavioral patterns....

High Mobility Group Proteins - A family of low-molecular weight, non-histone proteins found in chromatin....

High Pressure Neurological Syndrome - A syndrome related to increased atmospheric pressure and characterized by tremors, nausea, dizziness...

High Vocal Center - Nucleus in the NEOSTRIATUM of bird brains that sends signals for song production and receives audito...

High-Density Lipoproteins, Pre-beta - A highly dense subclass of the high-density lipoproteins, with particle sizes below 7 nm. They are a...

High-Energy Shock Waves - High-amplitude compression waves, across which density, pressure, and particle velocity change drast...

Higher Nervous Activity - A term used in Eastern European research literature on brain and behavior physiology for cortical fu...

High-Frequency Jet Ventilation - Respiratory support system used primarily with rates of about 100 to 200/min with volumes of from ab...

High-Frequency Ventilation - Ventilatory support system using frequencies from 60-900 cycles/min or more. Three types of systems ...

High-Intensity Focused Ultrasound Ablation - The use of focused, high-frequency sound waves to destroy tissue. It is sometimes used in conjunctio...

High-Throughput Screening Assays - Rapid methods of measuring the effects of an agent in a biological or chemical assay. The assay usua...

Hindlimb - Either of two extremities of four-footed non-primate land animals. It usually consists of a FEMUR; T...

Hindlimb Suspension - Technique for limiting use, activity, or movement by immobilizing or restraining animal by suspendin...

Hinduism - A complex body of social, cultural, and religious beliefs and practices evolved in and largely confi...

Hinge Exons - Immunoglobulin heavy chain gene exons coding for the hinge region of the heavy chains between the fi...

Hip - The projecting part on each side of the body, formed by the side of the pelvis and the top portion o...

Hip Contracture - Permanent fixation of the hip in primary positions, with limited passive or active motion at the hip...

Hip Dislocation - Displacement of the femur bone from its normal position at the HIP JOINT....

Hip Dislocation, Congenital - Congenital dislocation of the hip generally includes subluxation of the femoral head, acetabular dys...

Hip Dysplasia, Canine - A hereditary disease of the hip joints in dogs. Signs of the disease may be evident any time after 4...

Hip Fractures - Fractures of the FEMUR HEAD; the FEMUR NECK; (FEMORAL NECK FRACTURES); the trochanters; or the inter...

Hip Injuries - General or unspecified injuries involving the hip....

Hip Prosthesis - Replacement for a hip joint....

Hippocalcin - A neuronal calcium-sensor protein that was initially found in the NEURONS of the HIPPOCAMPUS. It int...

Hippocampus - A curved elevation of gray matter extending the entire length of the floor of the temporal horn of t...

Hippocastanaceae - A plant family of the order Sapindales, subclass Rosidae, class Magnoliopsida....

Hippocrateaceae - A plant family of the order Celastrales, subclass Rosidae, class Magnoliopsida. The Hippocratea genu...

Hippocratic Oath - An oath, attributed to Hippocrates, that serves as an ethical guide for the medical profession....

Hippomane - A plant genus of the family EUPHORBIACEAE. The trees contain hippomanin A and the latex is a skin ir...

Hippophae - A plant genus of the family ELAEAGNACEAE. Linoleic (18:2n-6) and alpha-linolenic acids (18:3n-3) com...

Hippurates - Salts and esters of hippuric acid....

Hirschsprung Disease - Congenital MEGACOLON resulting from the absence of ganglion cells (aganglionosis) in a distal segme...

Hirsutism - A condition observed in WOMEN and CHILDREN when there is excess coarse body hair of an adult male di...

Hirudin Therapy - Use of HIRUDINS as an anticoagulant in the treatment of cardiological and hematological disorders....

Hirudins - Single-chain polypeptides of about 65 amino acids (7 kDa) from LEECHES that have a neutral hydrophob...

Hirudo medicinalis - A species of European freshwater LEECHES used for BLOODLETTING in ancient times and also for LEECHIN...

Hispanic Americans - Persons living in the United States of Mexican (MEXICAN AMERICANS), Puerto Rican, Cuban, Central or ...

Histamine - An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric se...

Histamine Agents - Drugs used for their actions on histaminergic systems. Included are drugs that act at histamine rece...

Histamine Agonists - Drugs that bind to and activate histamine receptors. Although they have been suggested for a variety...

Histamine Antagonists - Drugs that bind to but do not activate histamine receptors, thereby blocking the actions of histamin...

Histamine H1 Antagonists - Drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the acti...

Histamine H1 Antagonists, Non-Sedating - A class of non-sedating drugs that bind to but do not activate histamine receptors (DRUG INVERSE AGO...

Histamine H2 Antagonists - Drugs that selectively bind to but do not activate histamine H2 receptors, thereby blocking the acti...

Histamine H3 Antagonists - Drugs that selectively bind to but do not activate HISTAMINE H3 RECEPTORS. They have been used to co...

Histamine N-Methyltransferase - An enzyme that catalyzes the transfer of a methyl group from S-adenosylmethionine to histamine, form...

Histamine Release - The secretion of histamine from mast cell and basophil granules by exocytosis. This can be initiated...

Histatins - A group of small, histidine-rich, cationic peptides in human SALIVA which are antibacterial and anti...

Histidine - An essential amino acid that is required for the production of HISTAMINE....

Histidine Ammonia-Lyase - An enzyme that catalyzes the first step of histidine catabolism, forming UROCANIC ACID and AMMONIA f...

Histidine Decarboxylase - An enzyme that catalyzes the decarboxylation of histidine to histamine and carbon dioxide. It requir...

Histidine-tRNA Ligase - An enzyme that activates histidine with its specific transfer RNA. EC 6.1.1.21....

Histidinol - The penultimate step in the pathway of histidine biosynthesis. Oxidation of the alcohol group on the...

Histidinol-Phosphatase - An enzyme that catalyzes the hydrolysis of histidinol-phosphate to histidinol. One of the regulatory...

Histiocytes - Macrophages found in the TISSUES, as opposed to those found in the blood (MONOCYTES) or serous cavit...

Histiocytic Disorders, Malignant - Distinctive neoplastic disorders of histiocytes. Included are malignant neoplasms of MACROPHAGES and...

Histiocytic Necrotizing Lymphadenitis - Development of lesions in the lymph node characterized by infiltration of the cortex or paracortex b...

Histiocytic Sarcoma - Malignant neoplasms composed of MACROPHAGES or DENDRITIC CELLS. Most histiocytic sarcomas present as...

Histiocytoma - A neoplasm containing HISTIOCYTES. Important forms include BENIGN FIBROUS HISTIOCYTOMA; and MALIGNAN...

Histiocytoma, Benign Fibrous - A benign tumor composed, wholly or in part, of cells with the morphologic characteristics of HISTIOC...

Histiocytoma, Malignant Fibrous - The most commonly diagnosed soft tissue sarcoma. It is a neoplasm with a fibrohistiocytic appearance...

Histiocytosis - General term for the abnormal appearance of histiocytes in the blood. Based on the pathological feat...

Histiocytosis, Langerhans-Cell - A group of disorders resulting from the abnormal proliferation of and tissue infiltration by LANGERH...

Histiocytosis, Non-Langerhans-Cell - Group of disorders which feature accumulations of active HISTIOCYTES and LYMPHOCYTES, but where the ...

Histiocytosis, Sinus - Benign, non-Langerhans-cell, histiocytic proliferative disorder that primarily affects the lymph nod...

Histocompatibility - The degree of antigenic similarity between the tissues of different individuals, which determines th...

Histocompatibility Antigens - A group of antigens that includes both the major and minor histocompatibility antigens. The former a...

Histocompatibility Antigens Class I - Large transmembrane, polymorphic glycoproteins noncovalently associated with nonpolymorphic beta 2-m...

Histocompatibility Antigens Class II - Large, transmembrane, non-covalently linked glycoproteins (alpha and beta). Both chains can be polym...

Histocompatibility Testing - Identification of the major histocompatibility antigens of transplant DONORS and potential recipient...

Histocompatibility, Maternal-Fetal - The degree of antigenic similarity between tissues of the mother and those of the FETUS. Maternal-fe...

Histocytochemistry - Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of stainin...

Histocytological Preparation Techniques - Methods of preparing cells or tissues for examination and study of their origin, structure, function...

Histology - The study of the structure of various TISSUES of organisms on a microscopic level....

Histology, Comparative - The study of the similarities and differences in the structures of homologous tissues across various...

Histone Acetyltransferases - Enzymes that catalyze acyl group transfer from ACETYL-CoA to HISTONES forming CoA and acetyl-histone...

Histone Chaperones - Proteins involved in the assembly and disassembly of HISTONES into NUCLEOSOMES....

Histone Code - The specific patterns of POST-TRANSLATIONAL PROTEIN MODIFICATION of HISTONES, i.e. histone ACETYLATI...

Histone Deacetylase 1 - A histone deacetylase subtype that is found along with HISTONE DEACETYLASE 2; RETINOBLASTOMA-BINDING...

Histone Deacetylase 2 - A histone deacetylase subtype that is found along with HISTONE DEACETYLASE 1; RETINOBLASTOMA-BINDING...

Histone Deacetylase Inhibitors - Compounds that inhibit HISTONE DEACETYLASES. This class of drugs may influence gene expression by i...

Histone Deacetylases - Deacetylases that remove N-acetyl groups from amino side chains of the amino acids of HISTONES. The ...

Histone Demethylases - Enzymes that catalyse the removal of methyl groups from LYSINE or ARGININE residues found on HISTONE...

Histone-Lysine N-Methyltransferase - An enzyme that catalyzes the methylation of the epsilon-amino group of lysine residues in proteins t...

Histones - Small chromosomal proteins (approx 12-20 kD) possessing an open, unfolded structure and attached to ...

Histoplasma - A mitosporic Onygenales fungal genus causing HISTOPLASMOSIS in humans and animals. Its single specie...

Histoplasmosis - Infection resulting from inhalation or ingestion of spores of the fungus of the genus HISTOPLASMA, s...

Historical Article - An article or portion of an article giving an account of past events or circumstances significant in...

Historical Geographic Locations - Countries known in remote history (as BYZANTIUM) or former names of countries reflecting political c...

Historiography - The writing of history; the principles, theory, and history of historical writing; the product of hi...

History, 15th Century - Time period from 1401 through 1500 of the common era....

History, 16th Century - Time period from 1501 through 1600 of the common era....

History, 17th Century - Time period from 1601 through 1700 of the common era....

History, 18th Century - Time period from 1701 through 1800 of the common era....

History, 19th Century - Time period from 1801 through 1900 of the common era....

History, 20th Century - Time period from 1901 through 2000 of the common era....

History, 21st Century - Time period from 2001 through 2100 of the common era....

History, Ancient - The period of history before 500 of the common era....

History, Early Modern 1451-1600 - The period of history from 1451 through 1600 of the common era....

History, Medieval - The period of history from the year 500 through 1450 of the common era....

History, Modern 1601- - The period of history from 1601 of the common era to the present....

Histrionic Personality Disorder - A personality disorder characterized by overly reactive and intensely expressed or overly dramatic b...

HIV - Human immunodeficiency virus. A non-taxonomic and historical term referring to any of two species, s...

HIV Antibodies - Antibodies reactive with HIV ANTIGENS....

HIV Antigens - Antigens associated with specific proteins of the human adult T-cell immunodeficiency virus (HIV); a...

HIV Core Protein p24 - A major core protein of the human immunodeficiency virus encoded by the HIV gag gene. HIV-seropositi...

HIV Enhancer - Cis-acting regulatory sequences in the HIV long terminal repeat (LTR) which play a major role in ind...

HIV Enteropathy - A syndrome characterized by chronic, well-established DIARRHEA (greater than one month in duration) ...

HIV Envelope Protein gp120 - External envelope protein of the human immunodeficiency virus which is encoded by the HIV env gene. ...

HIV Envelope Protein gp160 - An envelope protein of the human immunodeficiency virus that is encoded by the HIV env gene. It has ...

HIV Envelope Protein gp41 - Transmembrane envelope protein of the HUMAN IMMUNODEFICIENCY VIRUS which is encoded by the HIV env g...

HIV Fusion Inhibitors - Inhibitors of the fusion of HIV to host cells, preventing viral entry. This includes compounds that ...

HIV Infections - Includes the spectrum of human immunodeficiency virus infections that range from asymptomatic seropo...

HIV Integrase - Enzyme of the HUMAN IMMUNODEFICIENCY VIRUS that is required to integrate viral DNA into cellular DNA...

HIV Integrase Inhibitors - Inhibitors of HIV INTEGRASE, an enzyme required for integration of viral DNA into cellular DNA....

HIV Long Terminal Repeat - Regulatory sequences important for viral replication that are located on each end of the HIV genome....

HIV Long-Term Survivors - Persons who have experienced prolonged survival of HIV infection. This includes the full spectrum of...

HIV Protease - Enzyme of the human immunodeficiency virus that is required for post-translational cleavage of gag a...

HIV Protease Inhibitors - Inhibitors of HIV PROTEASE, an enzyme required for production of proteins needed for viral assembly....

HIV Reverse Transcriptase - A reverse transcriptase encoded by the POL GENE of HIV. It is a heterodimer of 66 kDa and 51 kDa sub...

HIV Seronegativity - Immune status consisting of non-production of HIV antibodies, as determined by various serological t...

HIV Seropositivity - Development of neutralizing antibodies in individuals who have been exposed to the human immunodefic...

HIV Seroprevalence - Studies of the number of cases where human immunodeficiency virus (HIV) is present in a specific pop...

HIV Wasting Syndrome - Involuntary weight loss of greater than 10 percent associated with intermittent or constant fever an...

HIV-1 - The type species of LENTIVIRUS and the etiologic agent of AIDS. It is characterized by its cytopathi...

HIV-2 - An HIV species related to HIV-1 but carrying different antigenic components and with differing nucle...

HIV-Associated Lipodystrophy Syndrome - Defective metabolism leading to fat maldistribution in patients infected with HIV. The etiology appe...

HL-60 Cells - A promyelocytic cell line derived from a patient with ACUTE PROMYELOCYTIC LEUKEMIA. HL-60 cells lack...

HLA Antigens - Antigens determined by leukocyte loci found on chromosome 6, the major histocompatibility loci in hu...

HLA-A Antigens - Polymorphic class I human histocompatibility (HLA) surface antigens present on almost all nucleated ...

HLA-A1 Antigen - Human histocompatibility (HLA) surface antigen encoded by the A locus on chromosome 6. Individuals b...

HLA-A2 Antigen - Human histocompatibility (HLA) surface antigen encoded by the A locus on chromosome 6. The HLA-A2 an...

HLA-A3 Antigen - Human histocompatibility (HLA) surface antigen encoded by the A locus on chromosome 6. The allele oc...

HLA-B Antigens - Class I human histocompatibility (HLA) surface antigens encoded by more than 30 detectable alleles o...

HLA-B27 Antigen - Human histocompatibility (HLA) surface antigen encoded by the B locus on chromosome 6. It is strongl...

HLA-B35 Antigen - Human histocompatibility (HLA) surface antigen encoded by the B locus on chromosome 6. It is weakly ...

HLA-B7 Antigen - Human histocompatibility (HLA) surface antigen encoded by the B locus on chromosome 6. There is a we...

HLA-B8 Antigen - Human histocompatibility (HLA) surface antigen encoded by the B locus on chromosome 6. It is in link...

HLA-C Antigens - Class I human histocompatibility (HLA) antigens encoded by a small cluster of structural genes at th...

HLA-D Antigens - Human immune-response or Class II antigens found mainly, but not exclusively, on B-lymphocytes and p...

HLA-DP Antigens - A group of the D-related HLA antigens (human) found to differ from the DR antigens in genetic locus ...

HLA-DQ Antigens - A group of the D-related HLA antigens found to differ from the DR antigens in genetic locus and ther...

HLA-DR Antigens - A group of D-related human leukocyte antigens that are polymorphic glycoproteins found on lymphoid c...

HLA-DR1 Antigen - Human immune-response, D-related antigen encoded by the D locus on chromosome 6 and found on lymphoi...

HLA-DR2 Antigen - Human immune-response, D-related antigen encoded by the D locus on chromosome 6 and found on lymphoi...

HLA-DR3 Antigen - Human immune-response, D-related antigen encoded by the D locus on chromosome 6 and found on lymphoi...

HLA-DR4 Antigen - Human immune-response, D-related antigen encoded by the D locus on chromosome 6 and found on lymphoi...

HLA-DR5 Antigen - Human immune-response, D-related antigen encoded by the D-locus on chromosome 6 and found on lymphoi...

HLA-DR6 Antigen - Human immune-response, D-related antigen encoded by the D locus on chromosome 6 and found on lymphoi...

HLA-DR7 Antigen - Human immune-response, D-related antigen encoded by the D locus on chromosome 6 and found on lymphoi...

HMGA Proteins - Proteins containing AT-HOOK MOTIFS that are rich in arginine and glycine residues. They bind to the ...

HMGA1a Protein - An 11-kDa AT-hook motif-containing (AT-HOOK MOTIFS) protein that binds to the minor grove of AT-rich...

HMGA1b Protein - An AT-hook motif-containing protein (AT-HOOK MOTIFS) that binds to the minor grove of AT-rich region...

HMGA1c Protein - An AT-hook-containing (AT-HOOK MOTIFS) nuclear protein that may be involved in retinoid-dependent tr...

HMGA2 Protein - An AT-hook-containing (AT-HOOK MOTIFS) nuclear protein that is expressed predominantly in proliferat...

HMGB Proteins - A family of sequence-related proteins similar to HMGB1 PROTEIN that contains specific HMG-BOX DOMAIN...

HMGB1 Protein - A 24-kDa HMGB protein that binds to and distorts the minor grove of DNA....

HMGB2 Protein - A 23-kDa HMG-box protein that binds to and distorts the minor grove of DNA....

HMGB3 Protein - An HMG-box domain (HMG-BOX DOMAINS) found highly expressed in embryonic tissue and in placenta....

HMG-Box Domains - DNA-binding domains present in proteins of the HMG-box superfamily including the archetypal HMGB PRO...

HMGN Proteins - A family of HIGH MOBILITY GROUP PROTEINS that bind to NUCLEOSOMES....

HMGN1 Protein - An evolutionarily-conserved 10-kDa nuclear protein that binds NUCLEOSOMES and may be involved in the...

HMGN2 Protein - An evolutionarily conserved 9-KDa nuclear protein that binds NUCLEOSOMES and may be involved in the ...

HN Protein - Glycoprotein from Sendai, para-influenza, Newcastle Disease, and other viruses that participates in ...

Hoarseness - An unnaturally deep or rough quality of voice....

Hobbies - Leisure activities engaged in for pleasure....

Hockey - A game in which two parties of players provided with curved or hooked sticks seek to drive a ball or...

Hodgkin Disease - A malignant disease characterized by progressive enlargement of the lymph nodes, spleen, and general...

Holarrhena - A plant genus of the family APOCYNACEAE. Members contain holarrhenine (a steroidal alkaloid) and TRI...

Holcus - A plant genus of the family POACEAE that contains Hol l 1 and Hol l 5 allergens....

Holidays - Days commemorating events. Holidays also include vacation periods....

Holistic Health - Health as viewed from the perspective that humans and other organisms function as complete, integrat...

Holistic Nursing - A philosophy of nursing practice that takes into account total patient care, considering the physica...

Holliday Junction Resolvases - Enzymes that recognize CRUCIFORM DNA structures and introduce paired incisions that help to resolve ...

Holmium - Holmium. An element of the rare earth family of metals. It has the atomic symbol Ho, atomic number 6...

Holocarboxylase Synthetase Deficiency - The neonatal form of MULTIPLE CARBOXYLASE DEFICIENCY that is caused by a defect or deficiency in hol...

Holocaust - A massive slaughter, especially the systematic mass extermination of European Jews in Nazi concentra...

Holoenzymes - Catalytically active enzymes that are formed by the combination of an apoenzyme (APOENZYMES) and its...

Holography - The recording of images in three-dimensional form on a photographic film by exposing it to a laser b...

Holoprosencephaly - Anterior midline brain, cranial, and facial malformations resulting from the failure of the embryoni...

Holosporaceae - A family of bacteria comprised of endosymbionts of protozoa....

Holothuria - A genus of large SEA CUCUMBERS in the family Holothuriidae possessing thick body walls, a warty body...

Holothurin - A highly toxic saponin occurring in HOLOTHUROIDEA. This marine toxin is an anionic surfactant, hemol...

Holtzman Inkblot Test - Personality evaluation based on the scoring of several variables as a result of the subject's respon...

Home Care Agencies - Public or private organizations that provide, either directly or through arrangements with other org...

Home Care Services - Community health and NURSING SERVICES providing coordinated multiple services to the patient at the ...

Home Care Services, Hospital-Based - Hospital-sponsored provision of health services, such as nursing, therapy, and health-related homema...

Home Childbirth - Childbirth taking place in the home....

Home Health Aides - Persons who assist ill, elderly, or disabled persons in the home, carrying out personal care and hou...

Home Infusion Therapy - Use of any infusion therapy on an ambulatory, outpatient, or other non-institutionalized basis....

Home Nursing - Nursing care given to an individual in the home. The care may be provided by a family member or a fr...

Homebound Persons - Those unable to leave home without exceptional effort and support; patients (in this condition) who ...

Homeless Persons - Persons who have no permanent residence. The concept excludes nomadic peoples....

Homeless Youth - Runaway and homeless children and adolescents living on the streets of cities and having no fixed pl...

Homemaker Services - Non-medical support services, such as food preparation and bathing, given by trained personnel to di...

Homeodomain Proteins - Proteins encoded by homeobox genes (GENES, HOMEOBOX) that exhibit structural similarity to certain p...

Homeopathy - A system of therapeutics founded by Samuel Hahnemann (1755-1843), based on the Law of Similars where...

Homeostasis - The processes whereby the internal environment of an organism tends to remain balanced and stable....

Homes for the Aged - Geriatric long-term care facilities which provide supervision and assistance in activities of daily ...

Homicide - The killing of one person by another....

Homing Behavior - Instinctual patterns of activity related to a specific area including ability of certain animals to ...

Hominidae - Family of the suborder HAPLORHINI (Anthropoidea) comprising bipedal primate MAMMALS. It includes mod...

Homocysteine - A thiol-containing amino acid formed by a demethylation of METHIONINE....

Homocysteine S-Methyltransferase - An enzyme that catalyzes the demethylation of L-homocysteine to L-METHIONINE....

Homocystinuria - Autosomal recessive inborn error of methionine metabolism usually caused by a deficiency of CYSTATHI...

Homogentisate 1,2-Dioxygenase - A mononuclear Fe(II)-dependent oxygenase, this enzyme catalyzes the conversion of homogentisate to 4...

Homoserine Dehydrogenase - An enzyme that catalyzes the reduction of aspartic beta-semialdehyde to homoserine, which is the bra...

Homoserine O-Succinyltransferase - The first enzyme in the METHIONINE biosynthetic pathway, this enzyme catalyzes the succinylation rea...

Homosexuality - The sexual attraction or relationship between members of the same SEX....

Homosexuality, Female - Sexual attraction or relationship between females....

Homosexuality, Male - Sexual attraction or relationship between males....

Homosteroids - Steroids whose structure has been expanded by the addition of one or more carbon atoms to the ring s...

Homozygote - An individual in which both alleles at a given locus are identical....

Honey - A sweet viscous liquid food, produced in the honey sacs of various bees from nectar collected from f...

Hong Kong - The former British crown colony located off the southeast coast of China, comprised of Hong Kong Isl...

Hookworm Infections - Infection of humans or animals with hookworms other than those caused by the genus Ancylostoma or Ne...

Hordeolum - Purulent infection of one of the sebaceous glands of Zeis along the eyelid margin (external) or of t...

Hordeum - A plant genus of the family POACEAE. The seed grain, barley, is widely used as food....

Hormone Antagonists - Chemical substances which inhibit the function of the endocrine glands, the biosynthesis of their se...

Hormone Replacement Therapy - Therapeutic use of hormones to alleviate the effects of hormone deficiency....

Hormones - Chemical substances having a specific regulatory effect on the activity of a certain organ or organs...

Hormones, Ectopic - Hormones released from neoplasms or from other cells that are not the usual sources of hormones....

Hormones, Hormone Substitutes, and Hormone Antagonists - A collective grouping for both naturally occurring and synthetic hormones, substitutes, and antagoni...

Horner Syndrome - A syndrome associated with defective sympathetic innervation to one side of the face, including the ...

Horse Diseases - Diseases of domestic and wild horses of the species Equus caballus....

Horseradish Peroxidase - An enzyme isolated from horseradish which is able to act as an antigen. It is frequently used as a h...

Horses - Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day sp...

Horseshoe Crabs - An arthropod subclass (Xiphosura) comprising the North American (Limulus) and Asiatic (Tachypleus) g...

Hospice Care - Specialized health care, supportive in nature, provided to a dying person. A holistic approach is of...

Hospices - Facilities or services which are especially devoted to providing palliative and supportive care to t...

Hospital Administration - Management of the internal organization of the hospital....

Hospital Administrators - Managerial personnel responsible for implementing policy and directing the activities of hospitals....

Hospital Auxiliaries - Volunteer organizations whose members perform work for the hospital without compensation....

Hospital Bed Capacity - The number of beds which a hospital has been designed and constructed to contain. It may also refer ...

Hospital Charges - The prices a hospital sets for its services. HOSPITAL COSTS (the direct and indirect expenses incurr...

Hospital Communication Systems - The transmission of messages to staff and patients within a hospital....

Hospital Costs - The expenses incurred by a hospital in providing care. The hospital costs attributed to a particular...

Hospital Departments - Major administrative divisions of the hospital....

Hospital Design and Construction - The architecture, functional design, and construction of hospitals....

Hospital Distribution Systems - Systems for delivering hospital supplies, food, laundry, etc., to patient care areas....

Hospital Information Systems - Integrated, computer-assisted systems designed to store, manipulate, and retrieve information concer...

Hospital Mortality - A vital statistic measuring or recording the rate of death from any cause in hospitalized population...

Hospital Planning - Areawide planning for hospitals or planning of a particular hospital unit on the basis of projected ...

Hospital Rapid Response Team - Multidisciplinary team most frequently consisting of INTENSIVE CARE UNIT trained personnel who are ...

Hospital Records - Compilations of data on hospital activities and programs; excludes patient medical records....

Hospital Restructuring - Reorganization of the hospital corporate structure....

Hospital Shared Services - Cooperation among hospitals for the purpose of sharing various departmental services, e.g., pharmacy...

Hospital Shops - Stores located in hospitals selling merchandise or services for the convenience of patients, staff, ...

Hospital Units - Those areas of the hospital organization not considered departments which provide specialized patien...

Hospital Volunteers - Individuals who donate their services to the hospital....

Hospitalists - Physicians who are employed to work exclusively in hospital settings, primarily for managed care org...

Hospitalization - The confinement of a patient in a hospital....

Hospital-Patient Relations - Interactions between hospital staff or administrators and patients. Includes guest relations program...

Hospital-Physician Joint Ventures - A formal financial agreement made between one or more physicians and a hospital to provide ambulator...

Hospital-Physician Relations - Includes relationships between hospitals, their governing boards, and administrators in regard to ph...

Hospitals - Institutions with an organized medical staff which provide medical care to patients....

Hospitals, Chronic Disease - Hospitals which provide care to patients with long-term illnesses....

Hospitals, Community - Institutions with permanent facilities and organized medical staff which provide the full range of h...

Hospitals, Convalescent - Hospitals which provide care to the patient for the period following an acute illness until health i...

Hospitals, County - Hospitals controlled by the county government....

Hospitals, District - Government-controlled hospitals which represent the major health facility for a designated geographi...

Hospitals, Federal - Hospitals controlled by agencies and departments of the U.S. federal government....

Hospitals, General - Large hospitals with a resident medical staff which provides continuous care to maternity, surgical ...

Hospitals, Group Practice - Hospitals organized and controlled by a group of physicians who practice together and provide each o...

Hospitals, Isolation - Hospitals designed or used to isolate or quarantine persons with communicable diseases....

Hospitals, Maternity - Special hospitals which provide care to women during pregnancy and parturition....

Hospitals, Military - Hospitals which provide care for the military personnel and usually for their dependents....

Hospitals, Municipal - Hospitals controlled by the city government....

Hospitals, Osteopathic - Hospitals providing care utilizing the generally accepted medical and surgical methods but with emph...

Hospitals, Packaged - Hospital equipment and supplies, packaged for long-term storage, sufficient to set up a general hosp...

Hospitals, Pediatric - Special hospitals which provide care for ill children....

Hospitals, Private - A class of hospitals that includes profit or not-for-profit hospitals that are controlled by a legal...

Hospitals, Proprietary - Hospitals owned and operated by a corporation or an individual that operate on a for-profit basis, a...

Hospitals, Psychiatric - Special hospitals which provide care to the mentally ill patient....

Hospitals, Public - Hospitals controlled by various types of government, i.e., city, county, district, state or federal....

Hospitals, Religious - Private hospitals that are owned or sponsored by religious organizations....

Hospitals, Rural - Hospitals located in a rural area....

Hospitals, Satellite - Those hospitals which are extensions of a main hospital and are wholly or partly administered by tha...

Hospitals, Special - Hospitals which provide care for a single category of illness with facilities and staff directed tow...

Hospitals, State - Hospitals controlled by agencies and departments of the state government....

Hospitals, Teaching - Hospitals engaged in educational and research programs, as well as providing medical care to the pat...

Hospitals, University - Hospitals maintained by a university for the teaching of medical students, postgraduate training pro...

Hospitals, Urban - Hospitals located in metropolitan areas....

Hospitals, Veterans - Hospitals providing medical care to veterans of wars....

Hospitals, Voluntary - Private, not-for-profit hospitals that are autonomous, self-established, and self-supported....

Host Cell Factor C1 - A cellular transcriptional coactivator that was originally identified by its requirement for the sta...

Host Factor 1 Protein - An integration host factor that was originally identified as a bacterial protein required for the in...

Host vs Graft Reaction - The immune responses of a host to a graft. A specific response is GRAFT REJECTION....

Hosta - A plant genus of the family LILIACEAE. Members contain steroidal saponins....

Hostility - Tendency to feel anger toward and to seek to inflict harm upon a person or group....

Host-Parasite Interactions - The relationship between an invertebrate and another organism (the host), one of which lives at the ...

Host-Pathogen Interactions - The interactions between a host and a pathogen, usually resulting in disease....

Hot Flashes - A sudden, temporary sensation of heat predominantly experienced by some women during MENOPAUSE. (Ran...

Hot Springs - Habitat of hot water naturally heated by underlying geologic processes. Surface hot springs have bee...

Hot Temperature - Presence of warmth or heat or a temperature notably higher than an accustomed norm....

Hotlines - A direct communication system, usually telephone, established for instant contact. It is designed to...

House Calls - Visits to the patient's home by professional personnel for the purpose of diagnosis and/or treatment...

Houseflies - Flies of the species Musca domestica (family MUSCIDAE), which infest human habitations throughout th...

Household Articles - Various material objects and items in the home. It includes temporary or permanent machinery and app...

Household Products - Substances or materials used in the course of housekeeping or personal routine....

Housekeeping - The care and management of property....

Housekeeping, Hospital - Hospital department which manages and provides the required housekeeping functions in all areas of t...

Housing - Living facilities for humans....

Housing for the Elderly - Housing arrangements for the elderly or aged, intended to foster independent living. The housing may...

Houttuynia - A plant genus of the family SAURURACEAE. Members contain aristolactams....

H-Reflex - A monosynaptic reflex elicited by stimulating a nerve, particularly the tibial nerve, with an electr...

HSC70 Heat-Shock Proteins - A constitutively expressed subfamily of the HSP70 heat-shock proteins. They preferentially bind and ...

HSP110 Heat-Shock Proteins - A group of eukaryotic high-molecular mass heat-shock proteins that represent a subfamily of HSP70 HE...

HSP20 Heat-Shock Proteins - A subfamily of small heat-shock proteins that are closely related to ALPHA B-CRYSTALLIN. Hsp20 heat-...

HSP27 Heat-Shock Proteins - A subfamily of small heat-shock proteins that function as molecular chaperones that aid in refolding...

HSP30 Heat-Shock Proteins - A subfamily of small heat-shock proteins found in a wide variety of organisms....

HSP40 Heat-Shock Proteins - A family of heat-shock proteins that contain a 70 amino-acid consensus sequence known as the J domai...

HSP47 Heat-Shock Proteins - Basic glycoprotein members of the SERPIN SUPERFAMILY that function as COLLAGEN-specific MOLECULAR CH...

HSP70 Heat-Shock Proteins - A class of MOLECULAR CHAPERONES found in both prokaryotes and in several compartments of eukaryotic ...

HSP72 Heat-Shock Proteins - Stress-inducible members of the heat-shock proteins 70 family. HSP72 heat shock proteins function w...

HSP90 Heat-Shock Proteins - A class of MOLECULAR CHAPERONES whose members act in the mechanism of SIGNAL TRANSDUCTION by STEROID...

HT29 Cells - Human colonic ADENOCARCINOMA cells that are able to express differentiation features characteristic ...

HTLV-I Antibodies - Antibodies reactive with the HTLV-I ANTIGENS....

HTLV-I Antigens - Antigens associated with HUMAN T-LYMPHOTROPIC VIRUS 1....

HTLV-II Antibodies - Antibodies reactive with the HTLV-II ANTIGENS....

HTLV-II Antigens - Antigens associated with HUMAN T-LYMPHOTROPIC VIRUS 2....

Hu Paraneoplastic Encephalomyelitis Antigens - A family of RNA-binding proteins that are homologues of ELAV protein, Drosophila. They were initiall...

Huckleberry Plant - Several plant species of the genus VACCINIUM known for the edible huckleberry fruit....

Human Activities - Activities performed by humans....

Human bocavirus - A member of the family PARVOVIRIDAE, subfamily PARVOVIRINAE, originally isolated from human nasophar...

Human Body - The human being as a non-anatomical and non-zoological entity. The emphasis is on the philosophical ...

Human Characteristics - The fundamental dispositions and traits of humans. (Merriam-Webster's Collegiate Dictionary, 10th ed...

Human Development - Continuous sequential changes which occur in the physiological and psychological functions during th...

Human Engineering - The science of designing, building or equipping mechanical devices or artificial environments to the...

Human Experimentation - The use of humans as investigational subjects....

Human Genome Project - A coordinated effort of researchers to map (CHROMOSOME MAPPING) and sequence (SEQUENCE ANALYSIS, DNA...

Human Growth Hormone - A 191-amino acid polypeptide hormone secreted by the human adenohypophysis (PITUITARY GLAND, ANTERIO...

Human Immunodeficiency Virus Proteins - Proteins synthesized by HUMAN IMMUNODEFICIENCY VIRUSES such as the HIV-1 and HIV-2....

Human papillomavirus 11 - A type of ALPHAPAPILLOMAVIRUS causing recurrent respiratory PAPILLOMATOSIS; GENITAL WARTS; and other...

Human papillomavirus 16 - A type of ALPHAPAPILLOMAVIRUS especially associated with malignant tumors of the CERVIX and the RESP...

Human papillomavirus 18 - A type of human papillomavirus especially associated with malignant tumors of the genital and RESPIR...

Human papillomavirus 6 - A type of ALPHAPAPILLOMAVIRUS usually associated with GENITAL WARTS; and LARYNGEAL NEOPLASMS....

Human Rights - The rights of the individual to cultural, social, economic, and educational opportunities as provide...

Human Rights Abuses - Deliberate maltreatment of groups of humans beings including violations of generally-accepted fundam...

Human T-lymphotropic virus 1 - A strain of PRIMATE T-LYMPHOTROPIC VIRUS 1 isolated from mature T4 cells in patients with T-lymphopr...

Human T-lymphotropic virus 2 - A strain of PRIMATE T-LYMPHOTROPIC VIRUS 2 that can transform normal T-lymphocytes and can replicate...

Human T-lymphotropic virus 3 - A strain of PRIMATE T-LYMPHOTROPIC VIRUS 3 that is genetically similar to STLV-3....

Humanism - An ethical system which emphasizes human values and the personal worth of each individual, as well a...

Humans - Members of the species Homo sapiens....

Humic Substances - Organic matter in a state of advanced decay, after passing through the stages of COMPOST and PEAT an...

Humidity - A measure of the amount of WATER VAPOR in the air....

Humor - Works consisting of jokes and facetiae relating to a subject....

Humoralism - An ancient Greek medical theory that health and illness result from a balance or imbalance of body f...

Humpback Whale - The species Megaptera novaeangliae, in the family Balaenopteridae, characterized by its huge flipper...

Humulus - A plant genus in the CANNABACEAE family. Best known for the buds of Humulus lupulus L. used in BEER...

Hunger - The desire for FOOD generated by a sensation arising from the lack of food in the STOMACH....

Huntington Disease - A familial disorder inherited as an autosomal dominant trait and characterized by the onset of progr...

Huperzia - A plant genus of the family LYCOPODIACEAE. Members contain huperzine, one of the CHOLINESTERASE INHI...

Hutchinson's Melanotic Freckle - A cellular subtype of malignant melanoma. It is a pigmented lesion composed of melanocytes occurring...

H-Y Antigen - A sex-specific cell surface antigen produced by the sex-determining gene of the Y chromosome in mamm...

Hyacinthus - A plant genus of the family LILIACEAE. Do not confuse with water hyacinth (EICHHORNIA)....

Hyaenidae - A family of large terrestrial carnivores possessing long legs, coarse guard hairs and a busy tail. I...

Hyalin - A clear, homogenous, structureless, eosinophilic substance occurring in pathological degeneration of...

Hyaline Cartilage - A type of CARTILAGE characterized by a homogenous amorphous matrix containing predominately TYPE II ...

Hyaline Membrane Disease - A respiratory distress syndrome in newborn infants, usually premature infants with insufficient PULM...

Hyaluronic Acid - A natural high-viscosity mucopolysaccharide with alternating beta (1-3) glucuronide and beta (1-4) g...

Hyaluronoglucosaminidase - An enzyme that catalyzes the random hydrolysis of 1,4-linkages between N-acetyl-beta-D-glucosamine a...

Hybrid Vigor - The adaptive superiority of the heterozygous GENOTYPE with respect to one or more characters in comp...

Hybridization, Genetic - The genetic process of crossbreeding between genetically dissimilar parents to produce a hybrid....

Hybridomas - Cells artificially created by fusion of activated lymphocytes with neoplastic cells. The resulting h...

Hycanthone - Potentially toxic, but effective antischistosomal agent, it is a metabolite of LUCANTHONE....

Hydantoins - Compounds based on imidazolidine dione. Some derivatives are ANTICONVULSANTS....

Hydatidiform Mole - Trophoblastic hyperplasia associated with normal gestation, or molar pregnancy. It is characterized ...

Hydatidiform Mole, Invasive - A uterine tumor derived from persistent gestational TROPHOBLASTS, most likely after a molar pregnanc...

Hydra - A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of spe...

Hydralazine - A direct-acting vasodilator that is used as an antihypertensive agent....

Hydranencephaly - A congenital condition where the greater portions of the cerebral hemispheres and CORPUS STRIATUM ar...

Hydrangea - A plant genus of the family HYDRANGEACEAE. Members contain hydrangenol, thunberginols, hydramacrosid...

Hydrangeaceae - A plant family of the order ROSALES, subclass Rosidae, class Magnoliopsida....

Hydrarthrosis - Accumulation of watery fluid in the cavity of a joint. (Dorland, 27th ed)...

Hydrastis - A plant genus of the family RANUNCULACEAE. Members contain BERBERINE....

Hydrazones - Compounds of the general formula R:N.NR2, as resulting from the action of hydrazines with aldehydes ...

Hydroa Vacciniforme - A vesicular and bullous eruption having a tendency to recur in summer during childhood and commonly ...

Hydrobiology - The study of aquatic life inhabiting bodies of water, including growth, morphology, physiology, gene...

Hydrobromic Acid - Hydrobromic acid (HBr). A solution of hydrogen bromide gas in water....

Hydrocarbons, Acyclic - Organic compounds composed exclusively of carbon and hydrogen where no carbon atoms join to form a r...

Hydrocarbons, Alicyclic - Organic compounds composed exclusively of carbon and hydrogen. Three or more carbon atoms are arrang...

Hydrocarbons, Aromatic - Organic compounds containing carbon and hydrogen in the form of an unsaturated, usually hexagonal ri...

Hydrocarbons, Chlorinated - Hydrocarbon compounds with one or more of the hydrogens replaced by CHLORINE....

Hydrocarbons, Cyclic - Organic compounds composed exclusively of carbon and hydrogen forming a closed ring that may be eith...

Hydrocephalus - Excessive accumulation of cerebrospinal fluid within the cranium which may be associated with dilati...

Hydrocephalus, Normal Pressure - A form of compensated hydrocephalus characterized clinically by a slowly progressive gait disorder (...

Hydrocharitaceae - A plant family of the order Hydrocharitales, subclass ALISMATIDAE, class Liliopsida (monocotyledons)...

Hydrochloric Acid - A strong corrosive acid that is commonly used as a laboratory reagent. It is formed by dissolving hy...

Hydrochlorothiazide - A thiazide diuretic often considered the prototypical member of this class. It reduces the reabsorpt...

Hydrocodone - Narcotic analgesic related to CODEINE, but more potent and more addicting by weight. It is used also...

Hydrocolpos - A fluid-filled VAGINA that is obstructed....

Hydrocortisone - The main glucocorticoid secreted by the ADRENAL CORTEX. Its synthetic counterpart is used, either as...

Hydroflumethiazide - A thiazide diuretic with actions and uses similar to those of HYDROCHLOROTHIAZIDE. (From Martindale,...

Hydrofluoric Acid - Hydrofluoric acid. A solution of hydrogen fluoride in water. It is a colorless fuming liquid which c...

Hydrogel - A network of cross-linked hydrophilic macromolecules used in biomedical applications....

Hydrogels - Water swollen, rigid, 3-dimensional network of cross-linked, hydrophilic macromolecules, 20-95% wate...

Hydrogen - Hydrogen. The first chemical element in the periodic table. It has the atomic symbol H, atomic numbe...

Hydrogen Bonding - A low-energy attractive force between hydrogen and another element. It plays a major role in determi...

Hydrogen Cyanide - Hydrogen cyanide (HCN); A toxic liquid or colorless gas. It is found in the smoke of various tobacco...

Hydrogen Peroxide - A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infe...

Hydrogen Sulfide - A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture ...

Hydrogenase - An enzyme found in bacteria. It catalyzes the reduction of FERREDOXIN and other substances in the pr...

Hydrogenation - Addition of hydrogen to a compound, especially to an unsaturated fat or fatty acid. (From Stedman, 2...

Hydrogen-Ion Concentration - The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements...

Hydrogenophilaceae - A family of gram-negative bacteria in the order Hydrogenophilales, class BETAPROTEOBACTERIA....

Hydrogensulfite Reductase - An enzyme found primarily in SULFUR-REDUCING BACTERIA where it plays an important role in the anaero...

Hydrolases - Any member of the class of enzymes that catalyze the cleavage of the substrate and the addition of w...

Hydro-Lyases - Enzymes that catalyze the breakage of a carbon-oxygen bond leading to unsaturated products via the r...

Hydrolysis - The process of cleaving a chemical compound by the addition of a molecule of water....

Hydrolyzable Tannins - Polymeric derivatives of GALLIC ACID that are esters of a sugar....

Hydromorphone - An opioid analgesic made from MORPHINE and used mainly as an analgesic. It has a shorter duration of...

Hydronephrosis - Abnormal enlargement or swelling of a KIDNEY due to dilation of the KIDNEY CALICES and the KIDNEY PE...

Hydrophid Venoms - Venoms of sea snakes, Hydrophiinae, found around Pacific islands. The venoms contain fewer enzymes a...

Hydrophidae - A family of sea snakes comprising about 50 species with flattened oar-like tails used as sculls. The...

Hydrophobicity - The property of substances of reduced affinity for or repulsion of water....

Hydrophthalmos - Congenital open-angle glaucoma that results from dysgenesis of the angle structures accompanied by i...

Hydrophyllaceae - The waterleaf plant family of the order Solanales, subclass Asteridae, class Magnoliopsida. They hav...

Hydropneumothorax - A collection of fluid and gas within the pleural cavity. (Dorland, 27th ed)...

Hydroponics - A technique for growing plants in culture solutions rather than in soil. The roots are immersed in a...

Hydrops Fetalis - Abnormal accumulation of serous fluid in two or more fetal compartments, such as SKIN; PLEURA; PERIC...

Hydrostatic Pressure - The pressure due to the weight of fluid....

Hydrotherapy - External application of water for therapeutic purposes....

Hydrothorax - A collection of watery fluid in the pleural cavity. (Dorland, 27th ed)...

Hydroxamic Acids - A class of weak acids with the general formula R-CONHOH....

Hydroxides - Inorganic compounds that contain the OH- group....

Hydroxocobalamin - Injectable form of VITAMIN B 12 that has been used therapeutically to treat VITAMIN B 12 DEFICIENCY....

Hydroxy Acids - Organic compounds containing both the hydroxyl and carboxyl radicals....

Hydroxyacetylaminofluorene - A N-hydroxylated derivative of 2-ACETYLAMINOFLUORENE that has demonstrated carcinogenic action....

Hydroxyapatites - A group of compounds with the general formula M10(PO4)6(OH)2, where M is barium, strontium, or calci...

Hydroxybenzoic Acids - Benzoic acid substituted by one or more hydroxy groups in any position on the benzene ring....

Hydroxybutyrates - Salts and esters of hydroxybutyric acid....

Hydroxychloroquine - A chemotherapeutic agent that acts against erythrocytic forms of malarial parasites. Hydroxychloroqu...

Hydroxycholecalciferols - Hydroxy analogs of vitamin D 3; (CHOLECALCIFEROL); including CALCIFEDIOL; CALCITRIOL; and 24,25-DIHY...

Hydroxycholesterols - Cholesterol which is substituted by a hydroxy group in any position....

Hydroxycorticosteroids - A group of corticosteroids carrying hydroxy groups, usually in the 11- or 17-positions. They compris...

Hydroxydopamines - Dopamines with a hydroxy group substituted in one or more positions....

Hydroxyeicosatetraenoic Acids - Eicosatetraenoic acids substituted in any position by one or more hydroxy groups. They are important...

Hydroxyestrones - Estrone derivatives substituted with one or more hydroxyl groups in any position. They are important...

Hydroxyethylrutoside - Monohydroxyethyl derivative of rutin. Peripheral circulation stimulant used in treatment of venous d...

Hydroxyl Radical - The univalent radical OH. Hydroxyl radical is a potent oxidizing agent....

Hydroxylamine - A colorless inorganic compound (HONH2) used in organic synthesis and as a reducing agent, due to its...

Hydroxylamines - Organic compounds that contain the (-NH2OH) radical....

Hydroxylation - Placing of a hydroxyl group on a compound in a position where one did not exist before. (Stedman, 26...

Hydroxylysine - A hydroxylated derivative of the amino acid LYSINE that is present in certain collagens....

Hydroxymercuribenzoates - Hydroxylated benzoic acid derivatives that contain mercury. Some of these are used as sulfhydryl rea...

Hydroxymethyl and Formyl Transferases - Enzymes that catalyze the transfer of hydroxymethyl or formyl groups. EC 2.1.2....

Hydroxymethylbilane Synthase - An enzyme that catalyzes the tetrapolymerization of the monopyrrole PORPHOBILINOGEN into the hydroxy...

Hydroxymethylglutaryl CoA Reductases - Enzymes that catalyze the reversible reduction of alpha-carboxyl group of 3-hydroxy-3-methylglutaryl...

Hydroxymethylglutaryl-CoA Reductase Inhibitors - Compounds that inhibit HMG-CoA reductases. They have been shown to directly lower cholesterol synthe...

Hydroxymethylglutaryl-CoA Reductases, NAD-Dependent - Specific hydroxymethylglutaryl CoA reductases that utilize the cofactor NAD. This class of enzymes p...

Hydroxymethylglutaryl-CoA Synthase - An enzyme that catalyzes the synthesis of hydroxymethylglutaryl-CoA from acetyl-CoA and acetoacetyl-...

Hydroxymethylglutaryl-CoA-Reductases, NADP-dependent - Specific hydroxymethylglutaryl CoA reductases that utilize the cofactor NAD. In liver enzymes of thi...

Hydroxyphenylazouracil - Inhibitor of DNA replication in gram-positive bacteria....

Hydroxyprogesterones - Metabolites or derivatives of PROGESTERONE with hydroxyl group substitution at various sites....

Hydroxyproline - A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired ...

Hydroxyprostaglandin Dehydrogenases - Catalyzes reversibly the oxidation of hydroxyl groups of prostaglandins....

Hydroxypyruvate Reductase - An enzyme that catalyzes the oxidation of D-glycerate to hydroxypyruvate in the presence of NADP....

Hydroxyquinolines - The 8-hydroxy derivatives inhibit various enzymes and their halogenated derivatives, though neurotox...

Hydroxysteroid Dehydrogenases - Enzymes of the oxidoreductase class that catalyze the dehydrogenation of hydroxysteroids. (From Enzy...

Hydroxysteroids - Steroids in which one or more hydroxy groups have been substituted for hydrogen atoms either within ...

Hydroxytestosterones - 17 beta-Hydroxy-4-androsten-3-ones. Testosterone derivatives formed by the substitution of one or mo...

Hydroxytryptophol - 5-Hydroxy-indole-3-ethanol....

Hydroxyurea - An antineoplastic agent that inhibits DNA synthesis through the inhibition of ribonucleoside diphosp...

Hydroxyzine - A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatit...

Hydrozoa - A class in the phylum CNIDARIA which alternates between polyp and medusa forms during their life cyc...

Hygiene - The science dealing with the establishment and maintenance of health in the individual and the group...

Hygromycin B - Aminoglycoside produced by Streptomyces hygroscopicus. It is used as an anthelmintic against swine i...

Hylobates - A genus of the family HYLOBATIDAE consisting of six species. The members of this genus inhabit rain ...

Hylobatidae - A family of the suborder HAPLORHINI comprising only one genus, HYLOBATES (also called Nomascus or Sy...

Hymecromone - A coumarin derivative possessing properties as a spasmolytic, choleretic and light-protective agent....

Hymenaea - A plant genus of the family FABACEAE. Members contain resins (RESINS, PLANT) and GLUCANS....

Hymenolepiasis - Infection with tapeworms of the genus Hymenolepis....

Hymenolepis - A genus of small tapeworms of birds and mammals....

Hymenolepis diminuta - A species of tapeworm (TAPEWORMS) infecting RATS and MICE but rarely causing disease in humans. Its ...

Hymenolepis nana - The smallest species of TAPEWORMS. It is the only cestode that parasitizes humans without requiring ...

Hymenoptera - An extensive order of highly specialized insects including bees, wasps, and ants....

Hymenostomatida - An order of ciliate protozoa. Characteristics include a ventral oral area and a well-defined buccal ...

Hyoid Bone - A mobile U-shaped bone that lies in the anterior part of the neck at the level of the third CERVICAL...

Hyoscyamus - A plant genus of the family SOLANACEAE which contains TROPANES....

Hyperacusis - An abnormally disproportionate increase in the sensation of loudness in response to auditory stimuli...

Hyperaldosteronism - A condition caused by the overproduction of ALDOSTERONE. It is characterized by sodium retention and...

Hyperalgesia - An increased sensation to painful stimuli that may follow damage to soft tissue containing NOCICEPTO...

Hyperammonemia - Elevated level of AMMONIA in the blood. It is a sign of defective CATABOLISM of AMINO ACIDS or ammon...

Hyperamylasemia - A condition with abnormally elevated level of AMYLASES in the serum. Hyperamylasemia due to PANCREA...

Hyperandrogenism - A condition caused by the excessive secretion of ANDROGENS from the ADRENAL CORTEX; the OVARIES; or ...

Hyperargininemia - A rare autosomal recessive disorder of the urea cycle. It is caused by a deficiency of the hepatic e...

Hyperbaric Oxygenation - The therapeutic intermittent administration of oxygen in a chamber at greater than sea-level atmosph...

Hyperbilirubinemia - A condition characterized by an abnormal increase of BILIRUBIN in the blood, which may result in JAU...

Hyperbilirubinemia, Hereditary - Inborn errors of bilirubin metabolism resulting in excessive amounts of bilirubin in the circulating...

Hyperbilirubinemia, Neonatal - Accumulation of BILIRUBIN, a breakdown product of HEME PROTEINS, in the BLOOD during the first weeks...

Hypercalcemia - Abnormally high level of calcium in the blood....

Hypercalciuria - Excretion of abnormally high level of CALCIUM in the URINE, greater than 4 mg/kg/day....

Hypercapnia - A clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood....

Hypercementosis - A regressive change of teeth characterized by excessive development of secondary cementum on the too...

Hypercholesterolemia - A condition with abnormally high levels of CHOLESTEROL in the blood. It is defined as a cholesterol ...

Hyperemesis Gravidarum - Intractable VOMITING that develops in early PREGNANCY and persists. This can lead to DEHYDRATION and...

Hyperemia - The presence of an increased amount of blood in a body part or an organ leading to congestion or eng...

Hypereosinophilic Syndrome - A heterogeneous group of disorders with the common feature of prolonged eosinophilia of unknown caus...

Hyperesthesia - Increased sensitivity to cutaneous stimulation due to a diminished threshold or an increased respons...

Hypergammaglobulinemia - An excess of GAMMA-GLOBULINS in the serum due to chronic infections or PARAPROTEINEMIAS....

Hyperglycemia - Abnormally high BLOOD GLUCOSE level....

Hyperglycemic Hyperosmolar Nonketotic Coma - A serious complication of TYPE 2 DIABETES MELLITUS. It is characterized by extreme HYPERGLYCEMIA; DE...

Hyperglycinemia, Nonketotic - An autosomal recessive metabolic disorder caused by deficiencies in the mitochondrial GLYCINE cleava...

Hypergravity - Condition wherein the force of gravity is greater than or is increased above that on the surface of ...

Hyperhidrosis - Excessive sweating. In the localized type, the most frequent sites are the palms, soles, axillae, in...

Hyperhomocysteinemia - Condition in which the plasma levels of homocysteine and related metabolites are elevated (>13.9 µmo...

Hypericum - Genus of perennial plants in the family CLUSIACEAE (sometimes classified as Hypericaceae). Herbal an...

Hyper-IgM Immunodeficiency Syndrome - A rare inherited immunodeficiency syndrome characterized by normal or elevated serum IMMUNOGLOBULIN ...

Hyper-IgM Immunodeficiency Syndrome, Type 1 - An X-linked hyper-IgM immunodeficiency subtype resulting from mutation in the gene encoding CD40 LIG...

Hyperinsulinism - A syndrome with excessively high INSULIN levels in the BLOOD. It may cause HYPOGLYCEMIA. Etiology of...

Hyperkalemia - Abnormally high potassium concentration in the blood, most often due to defective renal excretion. I...

Hyperkeratosis, Epidermolytic - A form of congenital ichthyosis inherited as an autosomal dominant trait and characterized by ERYTHR...

Hyperkinesis - Excessive movement of muscles of the body as a whole, which may be associated with organic or psycho...

Hyperlipidemia, Familial Combined - A type of familial lipid metabolism disorder characterized by a variable pattern of elevated plasma ...

Hyperlipidemias - Conditions with excess LIPIDS in the blood....

Hyperlipoproteinemia Type I - An inherited condition due to a deficiency of either LIPOPROTEIN LIPASE or APOLIPOPROTEIN C-II (a li...

Hyperlipoproteinemia Type II - A group of familial disorders characterized by elevated circulating cholesterol contained in either ...

Hyperlipoproteinemia Type III - An autosomal recessively inherited disorder characterized by the accumulation of intermediate-densit...

Hyperlipoproteinemia Type IV - A hypertriglyceridemia disorder, often with autosomal dominant inheritance. It is characterized by t...

Hyperlipoproteinemia Type V - A severe type of hyperlipidemia, sometimes familial, that it is characterized by the elevation of bo...

Hyperlipoproteinemias - Conditions with abnormally elevated levels of LIPOPROTEINS in the blood. They may be inherited, acqu...

Hyperlysinemias - A group of inherited metabolic disorders which have in common elevations of serum LYSINE levels. Enz...

Hypermastigia - A class of endosymbiont EUKARYOTES, in the group PARABASALIDEA, that are obligate mutualists in the ...

Hypermedia - Computerized compilations of information units (text, sound, graphics, and/or video) interconnected ...

Hypernatremia - Excessive amount of sodium in the blood. (Dorland, 27th ed)...

Hyperopia - A refractive error in which rays of light entering the eye parallel to the optic axis are brought to...

Hyperostosis - Increase in the mass of bone per unit volume....

Hyperostosis Frontalis Interna - Thickening of the inner table of the frontal bone, which may be associated with hypertrichosis and o...

Hyperostosis, Cortical, Congenital - A disease of young infants characterized by soft tissue swellings over the affected bones, fever, an...

Hyperostosis, Diffuse Idiopathic Skeletal - A disease of elderly men characterized by large osteophytes that bridge vertebrae and ossification o...

Hyperostosis, Sternocostoclavicular - A rare, benign rheumatologic disorder or syndrome characterized by hyperostosis and soft tissue ossi...

Hyperotreti - A group of invertebrate chordates (CHORDATA, NONVERTEBRATE) in the subphylum Craniota. They include ...

Hyperoxaluria - Excretion of an excessive amount of OXALATES in the urine....

Hyperoxaluria, Primary - A genetic disorder characterized by excretion of large amounts of OXALATES in urine; NEPHROLITHIASIS...

Hyperoxia - An abnormal increase in the amount of oxygen in the tissues and organs....

Hyperparathyroidism - A condition of abnormally elevated output of PARATHYROID HORMONE (or PTH) triggering responses that ...

Hyperparathyroidism, Primary - A condition of abnormally elevated output of PARATHYROID HORMONE due to parathyroid HYPERPLASIA or P...

Hyperparathyroidism, Secondary - Abnormally elevated PARATHYROID HORMONE secretion as a response to HYPOCALCEMIA. It is caused by chr...

Hyperphagia - Ingestion of a greater than optimal quantity of food....

Hyperphosphatemia - A condition of abnormally high level of PHOSPHATES in the blood, usually significantly above the nor...

Hyperpigmentation - Excessive pigmentation of the skin, usually as a result of increased epidermal or dermal melanin pig...

Hyperpituitarism - Disease of the glandular, anterior portion of the pituitary (PITUITARY GLAND, ANTERIOR) resulting in...

Hyperplasia - An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYP...

Hyperprolactinemia - Increased levels of PROLACTIN in the BLOOD, which may be associated with AMENORRHEA and GALACTORRHEA...

Hypersensitivity - Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure ...

Hypersensitivity, Delayed - An increased reactivity to specific antigens mediated not by antibodies but by cells....

Hypersensitivity, Immediate - Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the ...

Hypersomnolence, Idiopathic - A sleep disorder of central nervous system origin characterized by prolonged nocturnal sleep and per...

Hypersplenism - Condition characterized by splenomegaly, some reduction in the number of circulating blood cells in ...

Hypertelorism - Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sph...

Hypertension - Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETER...

Hypertension, Malignant - A condition of markedly elevated BLOOD PRESSURE with DIASTOLIC PRESSURE usually greater than 120 mm ...

Hypertension, Portal - Abnormal increase of resistance to blood flow within the hepatic PORTAL SYSTEM, frequently seen in L...

Hypertension, Pregnancy-Induced - A condition in pregnant women with elevated systolic (>140 mm Hg) and diastolic (>90 mm Hg) blood pr...

Hypertension, Pulmonary - Increased VASCULAR RESISTANCE in the PULMONARY CIRCULATION, usually secondary to HEART DISEASES or L...

Hypertension, Renal - Persistent high BLOOD PRESSURE due to KIDNEY DISEASES, such as those involving the renal parenchyma,...

Hypertension, Renovascular - Hypertension due to RENAL ARTERY OBSTRUCTION or compression....

Hypertensive Encephalopathy - Brain dysfunction or damage resulting from sustained MALIGNANT HYPERTENSION. When BLOOD PRESSURE exc...

Hyperthermia, Induced - Abnormally high temperature intentionally induced in living things regionally or whole body. It is m...

Hyperthyroidism - Hypersecretion of THYROID HORMONES from the THYROID GLAND. Elevated levels of thyroid hormones incre...

Hyperthyroxinemia - Abnormally elevated THYROXINE level in the BLOOD....

Hyperthyroxinemia, Familial Dysalbuminemic - An inherited autosomal dominant trait characterized by abnormally elevated levels of total serum THY...

Hypertonic Solutions - Solutions that have a greater osmotic pressure than a reference solution such as blood, plasma, or i...

Hypertrichosis - Excessive hair growth at inappropriate locations, such as on the extremities, the head, and the back...

Hypertriglyceridemia - A condition of elevated levels of TRIGLYCERIDES in the blood....

Hypertrophy - General increase in bulk of a part or organ due to CELL ENLARGEMENT and accumulation of FLUIDS AND S...

Hypertrophy, Left Ventricular - Enlargement of the LEFT VENTRICLE of the heart. This increase in ventricular mass is attributed to s...

Hypertrophy, Right Ventricular - Enlargement of the RIGHT VENTRICLE of the heart. This increase in ventricular mass is often attribut...

Hyperuricemia - Excessive URIC ACID or urate in blood as defined by its solubility in plasma at 37 degrees C; greate...

Hyperventilation - A pulmonary ventilation rate faster than is metabolically necessary for the exchange of gases. It is...

Hypervitaminosis A - A symptom complex resulting from ingesting excessive amounts of VITAMIN A....

Hypesthesia - Absent or reduced sensitivity to cutaneous stimulation....

Hyphae - Microscopic threadlike filaments in FUNGI that are filled with a layer of protoplasm. Collectively, ...

Hyphema - Bleeding in the anterior chamber of the eye....

Hyphomicrobiaceae - A family in the order Rhizobiales, class ALPHAPROTEOBACTERIA comprised of many genera of budding or ...

Hyphomicrobium - A genus of rod-shaped, oval, or bean-shaped bacteria found in soil and fresh water. Polar prosthecae...

Hypnosis - A state of increased receptivity to suggestion and direction, initially induced by the influence of ...

Hypnotics and Sedatives - Drugs used to induce drowsiness or sleep or to reduce psychological excitement or anxiety....

Hypoalbuminemia - A condition in which albumin level in blood (SERUM ALBUMIN) is below the normal range. Hypoalbuminem...

Hypoaldosteronism - A congenital or acquired condition of insufficient production of ALDOSTERONE by the ADRENAL CORTEX l...

Hypoalphalipoproteinemias - Conditions with abnormally low levels of ALPHA-LIPOPROTEINS (high-density lipoproteins) in the blood...

Hypobetalipoproteinemia, Familial, Apolipoprotein B - An autosomal dominant disorder of lipid metabolism. It is caused by mutations of APOLIPOPROTEINS B, ...

Hypobetalipoproteinemias - Conditions with abnormally low levels of BETA-LIPOPROTEINS (low density lipoproteins or LDL) in the ...

Hypocalcemia - Reduction of the blood calcium below normal. Manifestations include hyperactive deep tendon reflexes...

Hypocapnia - Clinical manifestation consisting of a deficiency of carbon dioxide in arterial blood....

Hypochlorous Acid - An oxyacid of chlorine (HClO) containing monovalent chlorine that acts as an oxidizing or reducing a...

Hypochondriasis - Preoccupation with the fear of having, or the idea that one has, a serious disease based on the pers...

Hypocotyl - The region of the stem beneath the stalks of the seed leaves (cotyledons) and directly above the you...

Hypocrea - A genus of fungus in the family Hypocreaceae, order HYPOCREALES. Anamorphs include TRICHODERMA....

Hypocreales - An order of fungi in the phylum ASCOMYCOTA that includes a number of species which are parasitic on ...

Hypodermoclysis - Technique for treating DEHYDRATION and WATER-ELECTROLYTE IMBALANCE by subcutaneous infusion of REHYD...

Hypodermyiasis - Infestation with larvae of the genus Hypoderma, the warble fly....

Hypogastric Plexus - A complex network of nerve fibers in the pelvic region. The hypogastric plexus distributes sympathet...

Hypoglossal Nerve - The 12th cranial nerve. The hypoglossal nerve originates in the hypoglossal nucleus of the medulla a...

Hypoglossal Nerve Diseases - Diseases of the twelfth cranial (hypoglossal) nerve or nuclei. The nuclei and fascicles of the nerve...

Hypoglycemia - A syndrome of abnormally low BLOOD GLUCOSE level. Clinical hypoglycemia has diverse etiologies. Seve...

Hypoglycemic Agents - Agents which lower the blood glucose level....

Hypoglycins - Methylene cyclopropyl alanine and congeners isolated from the unripe edible fruit of the AKEE plant ...

Hypogonadism - Condition resulting from deficient gonadal functions, such as GAMETOGENESIS and the production of GO...

Hypogravity - Condition wherein the force of gravity is less than or is decreased below that on the surface of the...

Hypohidrosis - Abnormally diminished or absent perspiration. Both generalized and segmented (reduced or absent swea...

Hypokalemia - Abnormally low potassium concentration in the blood. It may result from potassium loss by renal secr...

Hypokalemic Periodic Paralysis - An autosomal dominant familial disorder characterized by recurrent episodes of skeletal muscle weakn...

Hypokinesia - Slow or diminished movement of body musculature. It may be associated with BASAL GANGLIA DISEASES; M...

Hypolipoproteinemias - Conditions with abnormally low levels of LIPOPROTEINS in the blood. This may involve any of the lipo...

Hyponatremia - Deficiency of sodium in the blood; salt depletion. (Dorland, 27th ed)...

Hypoparathyroidism - A condition caused by a deficiency of PARATHYROID HORMONE (or PTH). It is characterized by HYPOCALCE...

Hypopharyngeal Neoplasms - Tumors or cancer of the HYPOPHARYNX....

Hypopharynx - The bottom portion of the pharynx situated below the OROPHARYNX and posterior to the LARYNX. The hyp...

Hypophosphatasia - A genetic metabolic disorder resulting from serum and bone alkaline phosphatase deficiency leading t...

Hypophosphatemia - A condition of an abnormally low level of PHOSPHATES in the blood. Severe hypophosphatemia (below 1 ...

Hypophosphatemia, Familial - An inherited condition of abnormally low serum levels of PHOSPHATES (below 1 mg/liter) which can occ...

Hypophosphatemic Rickets, X-Linked Dominant - An X-linked disorder characterized by HYPOPHOSPHATEMIA; RICKETS; OSTEOMALACIA; renal defects in phos...

Hypophysectomy - Surgical removal or destruction of the hypophysis, or pituitary gland. (Dorland, 28th ed)...

Hypophysectomy, Chemical - Total or subtotal destruction of the pituitary gland by chemical injection. It is usually achieved b...

Hypopigmentation - A condition caused by a deficiency or a loss of melanin pigmentation in the epidermis, also known as...

Hypopituitarism - Diminution or cessation of secretion of one or more hormones from the anterior pituitary gland (incl...

Hypoplastic Left Heart Syndrome - A condition caused by underdevelopment of the whole left half of the heart. It is characterized by h...

Hypoproteinemia - A condition in which total serum protein level is below the normal range. Hypoproteinemia can be cau...

Hypoprothrombinemias - Absence or reduced levels of prothrombin in the blood....

Hypospadias - A birth defect due to malformation of the URETHRA in which the urethral opening is below its normal ...

Hypotension - Abnormally low BLOOD PRESSURE that can result in inadequate blood flow to the brain and other vital ...

Hypotension, Orthostatic - A significant drop in BLOOD PRESSURE after assuming a standing position. Orthostatic hypotension is ...

Hypothalamic Area, Lateral - This area is bounded medially by the mammillothalamic tract and the anterior column of fornix. The m...

Hypothalamic Diseases - Neoplastic, inflammatory, infectious, and other diseases of the hypothalamus. Clinical manifestation...

Hypothalamic Hormones - Peptide hormones produced by NEURONS of various regions in the HYPOTHALAMUS. They are released into ...

Hypothalamic Neoplasms - Benign and malignant tumors of the HYPOTHALAMUS. Pilocytic astrocytomas and hamartomas are relativel...

Hypothalamo-Hypophyseal System - A collection of NEURONS, tracts of NERVE FIBERS, endocrine tissue, and blood vessels in the HYPOTHAL...

Hypothalamus - Ventral part of the diencephalon extending from the region of the optic chiasm to the caudal border ...

Hypothalamus, Anterior - The front portion of the HYPOTHALAMUS separated into the preoptic region and the supraoptic region. ...

Hypothalamus, Middle - That middle portion of the hypothalamus containing the arcuate, dorsomedial, and ventromedial nuclei...

Hypothalamus, Posterior - The part of the hypothalamus posterior to the middle region consisting of several nuclei including t...

Hypothermia - Lower than normal body temperature, especially in warm-blooded animals; in man usually accidental or...

Hypothermia, Induced - Abnormally low BODY TEMPERATURE that is intentionally induced in warm-blooded animals by artificial ...

Hypothyroidism - A syndrome that results from abnormally low secretion of THYROID HORMONES from the THYROID GLAND, le...

Hypotonic Solutions - Solutions that have a lesser osmotic pressure than a reference solution such as blood, plasma, or in...

Hypotrichida - An order of ciliate protozoa. Characteristics include a dorsoventrally flattened, highly mobile body...

Hypotrichosis - Presence of less than the normal amount of hair. (Dorland, 27th ed)...

Hypoventilation - A reduction in the amount of air entering the pulmonary alveoli....

Hypovolemia - An abnormally low volume of blood circulating through the body. It may result in hypovolemic shock (...

Hypoxanthine - A purine and a reaction intermediate in the metabolism of adenosine and in the formation of nucleic ...

Hypoxanthine Phosphoribosyltransferase - An enzyme that catalyzes the conversion of 5-phosphoribosyl-1-pyrophosphate and hypoxanthine, guanin...

Hypoxanthines - Purine bases related to hypoxanthine, an intermediate product of uric acid synthesis and a breakdown...

Hypoxia, Brain - A reduction in brain oxygen supply due to ANOXEMIA (a reduced amount of oxygen being carried in the ...

Hypoxia-Inducible Factor 1 - A basic helix-loop-helix transcription factor that plays a role in APOPTOSIS. It is composed of two ...

Hypoxia-Inducible Factor 1, alpha Subunit - Hypoxia-inducible factor 1, alpha subunit is a basic helix-loop-helix transcription factor that is r...

Hypoxia-Ischemia, Brain - A disorder characterized by a reduction of oxygen in the blood combined with reduced blood flow (ISC...

Hypoxis - Hypoxis is a plant genus in the family LILIACEAE (sometimes classified as Hypoxidaceae)....

Hyptis - A plant genus of the family LAMIACEAE that contains 5-methoxydehydropodophyllotoxin (a PODOPHYLLOTOX...

Hyraxes - Any of certain small mammals of the order Hyracoidea....

Hysterectomy - Excision of the uterus....

Hysterectomy, Vaginal - Removal of the uterus through the vagina....

Hysteria - Historical term for a chronic, but fluctuating, disorder beginning in early life and characterized b...

Hysterosalpingography - Radiography of the uterus and fallopian tubes after the injection of a contrast medium....

Hysteroscopes - Endoscopes for examining the interior of the uterus....

Hysteroscopy - Endoscopic examination, therapy or surgery of the interior of the uterus....

Hysterotomy - An incision in the uterus, performed through either the abdomen or the vagina....

First Name: Last Name: Email Address: Phone Number: Insurance Type (Select One):  Medicare      Medicare Replacement Best Time to Call (Select One):  Morning      Afternoon      Evening By submitting this information, I authorize Diabetic Health Agency to contact me by phone. ** Free offers subject to Insurance/Medicare qualification.