Cytochrome P-450 CYP3A
Definition
Cytochrome P-450 CYP3A: A cytochrome P-450 monooxygenase that is involved in an NADPH-dependent electron transport pathway by oxidizing a variety of structurally unrelated compounds, including STEROIDS; FATTY ACIDS; and XENOBIOTICS. This enzyme has clinical significance due to its ability to metabolize a diverse array of clinically important drugs such as CYCLOSPORINE; VERAPAMIL; and MIDAZOLAM. This enzyme also catalyzes the N-demethylation of ERYTHROMYCIN.
Other Entries
CYP3A
Cytochrome P-450IIIA
Cytochrome P450 3A
Erythromycin N-Demethylase
Cytochrome P 450 CYP3A
Cytochrome P 450IIIA
Erythromycin N Demethylase
N-Demethylase, Erythromycin
P-450 CYP3A, Cytochrome
P-450IIIA, Cytochrome
P450 3A, Cytochrome
Allowable Qualifiers
administration & dosage adverse effects analysis antagonists & inhibitors biosynthesis blood cerebrospinal fluid chemical synthesis chemistry classification contraindications deficiency diagnostic use drug effects economics genetics history immunology isolation & purification metabolism pharmacokinetics pharmacology physiology poisoning radiation effects secretion standards supply & distribution therapeutic use toxicity ultrastructure urine
Categories
Entry Date
06-30-2005
Common Chronic Illnesses
Coronary Disease
An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.
Diabetes Mellitus, Type 1
A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.
Diabetes Supplies | Diabetic Groups
Diabetes Mellitus, Type 2
A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.
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Hypertension
Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.
Mesothelioma
A tumor derived from mesothelial tissue (peritoneum, pleura, pericardium). It appears as broad sheets of cells, with some regions containing spindle-shaped, sarcoma-like cells and other regions showing adenomatous patterns. Pleural mesotheliomas have been linked to exposure to asbestos. (Dorland, 27th ed)
Osteoarthritis
A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans.
