نتایج جستجو برای: cyp2d6
تعداد نتایج: 2395 فیلتر نتایج به سال:
We tested the influence of four polymorphisms and gene duplication in CYP2D6 on in vivo enzyme activity in a Chilean mestizo population in order to identify the most relevant genetic profiles that account for observed phenotypes in this ethnic group. CYP2D6*2 (2850C>T), *3 (2549A>del), *4 (1846G>A), *17 (1023C>T) and gene duplication were determined by PCR-RFLP or PCRL in a group of 321 healthy...
چکیده: پیش زمینه: بعضی افراد، به ویژه نسبت به اثرات یک داروی خاص ممکن است حساس، در صورتی که افراد دیگر به آن کاملا مقاوم باشند. با این وجود تفاوتهای فردی در پاسخ به داروها در انسان اغلب ژنتیکی هستند. هدف مطالعه ی حاضر بررسی یکی از پلی مورفیسمهای مهم، cyp2d6*4 می باشد که در متابولیسم بسیاری از دارو ها نقش دارد. روش کار: در این مطالعه نمونه ی dna 300 فرد سالم، که از مرکز پزشکی خاص تهران جمع آور...
CYP2D6 has received intense attention since the beginning of the pharmacogenetic era in the 1970s. This is because of its involvement in the metabolism of more than 25% of the marketed drugs, the large geographical and inter-ethnic differences in the genetic polymorphism and possible drug-induced toxicity. Many interesting reviews have been published on CYP2D6 and this review aims to reinstate ...
Physicochemical and biopharmaceutical characterization of new sulfonamide derivatives of gallic acid
Gallic acid (GA) is known for its antioxidant activitywhichis restricted due to low oral permeability. In this project the carboxylic group of was substitutedwith sulfonamide and hydroxyl groups were methylated which resulted insignificantly (p<0.01) increased permeability 3,4,5-trimethoxybenzenesulfonamide (TMBS) 3,4,5-trihydroxybenzenesulfonamide (THBS) over GA, inParallel Artificial M...
Introduction: Hyperprolactinemia is a common serious side effect of antipsychotic medications that are currently used in the treatment of patients with schizophrenia. Pharmacogenetic approaches offer the possibility of identifying patient-specific biomarkers for predicting the risk of this side effect. We investigated a possible relationship between variants (SNPs) in genes for cytochrome 2D6 (...
We have previously shown racial differences in propranolol kinetics, with the largest differences appearing to be in its 4-hydroxylation. The purpose of this study was to identify and confirm the cytochrome P450 enzymes (CYP) with propranolol 4-hydroxylase activity, describe their enzyme kinetics, and determine whether there were racial differences in their catalytic activity. Eleven human reco...
AIMS Pridopidine is an oral drug in clinical development for treatment of patients with Huntington's disease. This study examined the interactions of pridopidine with in vitro cytochrome P450 activity and characterized the effects of pridopidine on CYP2D6 activity in healthy volunteers using metoprolol as a probe substrate. The effect of food on pridopidine exposure was assessed. METHODS The ...
Metabolism plays an important role in the toxic effects caused by 3,4-methylenedioxymethamphetamine (MDMA). Most research has focused on the involvement of CYP2D6 enzyme in MDMA bioactivation, and less is known about the contribution of other cytochrome P450 (P450) and phase II metabolism. In this study, we researched the differential roles of phase I P450 enzymes CYP1A2, CYP3A4, and CYP2D6 and...
Purpose: CYP2D6 is the key enzyme responsible for the generation of the potent active metabolite of tamoxifen, "endoxifen." There are still controversial reports questioning the association between CYP2D6 genotype and tamoxifen efficacy. Hence, we performed a prospective multicenter study to evaluate the clinical effect of CYP2D6 genotype on tamoxifen therapy.Experimental Design: We enrolled 27...
BACKGROUND Cytochrome P450 2D6 (CYP2D6), a member of the CYP450 enzyme super family, is a polymorphic enzyme that metabolizes ~25% of therapeutic drugs. CYP2D6 exhibits significant genetic polymorphisms which might cause adverse effects and therapeutic failures of some drugs. OBJECTIVE The purpose of this study was to evaluate the catalytic activities of 22 novel CYP2D6 alleles (CYP2D6*87, *8...
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