TRANSIENT INDUCTION OF RAT HEPATIC CYTOCHROME P4501A1/1A2 BY HYPEROXIA.• 459
نویسندگان
چکیده
منابع مشابه
Rapid clinical induction of hepatic cytochrome P4502B6 activity by ritonavir.
Ritonavir is the most potent and efficacious inhibitor of cytochrome P4503A (CYP3A), and it is used accordingly for the pharmacoenhancement of other antiretrovirals. Paradoxically, ritonavir induces the clinical metabolism and clearance of many drugs. The mechanism by which ritonavir inhibits and induces clinical drug metabolism is unknown. Ritonavir induces CYP2B6 in human hepatocytes. This in...
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Supplemental oxygen therapy is frequently used in the treatment of pulmonary insufficiency, as is encountered in premature infants, and in patients with acute respiratory distress syndrome. However, hyperoxia causes lung damage in experimental animals and may do so in humans. Cytochrome P4501A enzymes have been implicated in hyperoxic lung injury. In this study, we investigated the mechanisms o...
متن کاملRat Hepatic Cytochrome P450 Genes
Cytochromes P450 (P450) collectively refer to a superfamily of heme-containing enzymes that use 02 and electrons from NADPH to insert a single atom of oxygen into any one of a large number of substrates. Two general classes of P450s exist; a relatively limited number of P450 forms, expressed in specialized tissues that are associated with pathways of steroidogenesis and a large number of forms ...
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Background and Aim: Methotrexate (MTX) is commonly used in the treatment of diseases such as rheumatoid arthritis (RA) but, its hepatotoxicity potential, always has been a major concern. The aim of this study is to determine the rate of liver fibrosis by transient elastography (TE) method and its relationship with cumulative dose of MTX and duration of treatment, in rheumatoid arthritis patient...
متن کاملInactivation of the hepatic cytochrome P450 system by conditional deletion of hepatic cytochrome P450 reductase.
Cytochrome P450 (CYP) monooxygenases catalyze the oxidation of a large number of endogenous compounds and the majority of ingested environmental chemicals, leading to their elimination and often to their metabolic activation to toxic products. This enzyme system therefore provides our primary defense against xenobiotics and is a major determinant in the therapeutic efficacy of pharmacological a...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1996
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-199604001-00479