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"INHIBITORS, INDUCERS AND SUBSTRATES OF CYTOCHROME P450 ISOZYMES". "The Life Raft Group: Long List of Inhibitors and Inducers of CYP3A4 and CYP2D6". "DRUGBANK Online: Cytochrome P-450 Enzyme Inhibitors". "MEDICATIONS METABOLIZED BY CYTOCHROME P450 3A4" (PDF)
Fluoroquinolones have varying specificity for cytochrome P450, so may have interactions with drugs cleared by those enzymes; the order from most P450-inhibitory to least, is enoxacin > ciprofloxacin > norfloxacin > ofloxacin, levofloxacin, trovafloxacin, gatifloxacin, moxifloxacin. [50]
Cytochrome P450, family 1, subfamily A, polypeptide 1 is a protein [5] ... fluoroquinolones and macrolides and induced by aromatic hydrocarbons. [9]
Fluconazole is an inhibitor of the human cytochrome P450 system, particularly the isozyme CYP2C19 (CYP3A4 and CYP2C9 to lesser extent) [31] In theory, therefore, fluconazole decreases the metabolism and increases the concentration of any drug metabolised by these enzymes.
A second electron is transferred, from either cytochrome P450 reductase, ferredoxins, or cytochrome b 5, reducing the Fe-O 2 adduct to give a short-lived peroxo state. The peroxo group formed in step 4 is rapidly protonated twice, releasing one molecule of water and forming the highly reactive species referred to as P450 Compound 1 (or just ...
Cytochrome P450 aromatic O-demethylase, which is made of two distinct promiscuous parts: a cytochrome P450 protein (GcoA) and three domain reductase, is significant for its ability to convert Lignin, the aromatic biopolymer common in plant cell walls, into renewable carbon chains in a catabolic set of reactions. In short, it is a facilitator of ...
The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. CYP1A2 localizes to the endoplasmic reticulum and its expression is induced by some polycyclic aromatic hydrocarbons (PAHs), some of which are found in cigarette smoke.
In vitro studies with cytochrome (CYP) P450 enzymes indicate that moxifloxacin does not inhibit 80 CYP3A4, CYP2D6, CYP2C9, CYP2C19, or CYP1A2, suggesting that moxifloxacin is unlikely to alter the pharmacokinetics of drugs metabolized by these enzymes. [38] [3] The pharmacokinetics of moxifloxacin in pediatric subjects have not been studied. [38]