Twenty five derivatives of the drugs terfenadine and ebastine have been designed, synthesized and evaluated as inhibitors of recombinant human CYP2J2. Compound 14, which has an imidazole substituent, is a good non-competitive inhibitor of CYP2J2 (IC(50)=400nM). It is not selective towards CYP2J2 as it also efficiently inhibits the other main vascular CYPs, such as CYP2B6, 2C8, 2C9 and 3A4; howe...

Cytochrome P450 enzymes (P450s, CYPs) are a superfamily of heme–thiolate proteins involved in the metabolism endogenous and exogenous substances insects. In this study, identification putative was done elimination repeated sequences resulted 57 from Gastropacha populifolia , 63 Dendrolimus punctatus 53 tabulaeformis . The were aligned together with seven other insect species based on five conse...

Development and Validation of a New Simple Liquid Chromatographic Method for Determination Coumarin its 7-Hydroxy Metabolite as Marker Cytochrome P450 2A6 in RatsSundeep Bath, Wael Ebied, Hytham Ahmed, Fawzy Elbarbry

Cytochrome P450 monooxygenases (cytochrome P450s), found in virtually all living organisms, play an important role in the metabolism of xenobiotics such as drugs, pesticides, and plant toxins. We have previously evaluated the responses of the oriental migratory locust (Locusta migratoria) to the pyrethroid insecticide deltamethrin and revealed that increased cytochrome P450 enzyme activity was ...

conclusions the results of this study demonstrated that the p450 cyp141 gene was successfully cloned into a pet26b plasmid vector as an expression vector. in this paper, for the first time in iran, this gene was cloned for more purposes, including the expression and purification of the recombinant cytochrome p450 cyp141 protein. results the cloning of p450 cyp141 gene was confirmed by the enzym...

A new detection mechanism has been developed for low molecular weight substrate binding to heme proteins based on resonance localized surface plasmon spectroscopy. Cytochrome P450 has strong electronic transitions in the visible wavelength region. Upon binding of a substrate molecule (e.g., camphor), the absorption band of cytochrome P450 shifts to shorter wavelength. The event of camphor bindi...

Some fruit juices and fruits can interact with numerous drugs, in many cases causing adverse. These chemicals inhibit key drug metabolizing enzymes, such as cytochrome P450 3A4 (CYP3A4).. .. Covera HS, Isoptin SR, Verelan); Warfarin (coumadin); Zolpidem (Ambien): Little or no interaction with grapefruit juice. The aim of this study was to identify the form(s) of cytochrome P450 (CYP) responsibl...