alexa CYP3A53A allele is associated with reduced lowering-lipid response to atorvastatin in individuals with hypercholesterolemia.
Anesthesiology

Anesthesiology

Journal of Anesthesia & Clinical Research

Author(s): Willrich MA, Hirata MH, Genvigir FD, Arazi SS, Rebecchi IM,

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Abstract BACKGROUND: The cytochrome P450 isoenzyme 3A5 (CYP3A5) has an important role on biotransformation of xenobiotics. CYP3A5 SNPs have been associated with variations on enzyme activity that can modify the metabolism of several drugs. METHODS: In order to evaluate the influence of CYP3A5 variants on response to lowering-cholesterol drugs, 139 individuals with hypercholesterolemia were selected. After a wash-out period of 4 weeks, individuals were treated with atorvastatin (10 mg/day/4 weeks). Genomic DNA was extracted by a salting-out procedure. CYP3A5*3C, CYP3A5*6 and CYP3A5*1D were analyzed by PCR-RFLP and DNA sequencing. RESULTS: >Frequencies of the CYP3A5*3C and CYP3A5*1D alleles were lower in individuals of African descent (*3C: 47.8\% and *1D: 55.2\%) than in non-Africans (*3C: 84.9\% and *1D 84.8\%, p<0.01). Non-Africans carrying *3A allele (*3C and *1D combined alleles) had lower total and LDL-cholesterol response to atorvastatin than non-*3A allele carriers (p<0.05). CONCLUSION: CYP3A5*3A allele is associated with reduced cholesterol-lowering response to atorvastatin in non-African individuals. This article was published in Clin Chim Acta and referenced in Journal of Anesthesia & Clinical Research

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