alexa Genetic polymorphism of CYP2C8 in three Malaysian ethnics: CYP2C8*2 and CYP2C8*3 are found in Malaysian Indians.


Journal of Addiction Research & Therapy

Author(s): Muthiah YD, Lee WL, Teh LK, Ong CE, Ismail R

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Abstract BACKGROUND: CYP2C8 is genetically polymorphic. Four variants, CYP2C8*2, CYP2C8*3, CYP2C8*4 and CYP2C8*5, which contain mutations in the coding regions have been reported to exhibit different enzyme activity as compared with CYP2C8*1. OBJECTIVE: To determine the allele frequency of three codon-changing variants (CYP2C8*2, CYP2C8*3 and CYP2C8*4) in the Malaysian population. METHOD: Healthy unrelated volunteers from three major races in Malaysia were recruited. The study was approved by the local Research Ethics Committee. DNA was extracted using a standard protocol. A two-step multiplex PCR method was developed to detect three alleles of CYP2C8. PCR results were confirmed by subsequent direct DNA sequencing. RESULT: Only the Indians showed CYP2C8 polymorphism with allele frequency of 98\% for CYP2C8*1, 0.8\% for CYP2C8*2 and 1.2\% for CYP2C8*3. CYP2C8*4 was not detected in any of the ethnic groups. CONCLUSION: To the best of our knowledge, the current study described, for the first time polymorphisms of CYP2C8 in Malaysian Indians. This article was published in J Clin Pharm Ther and referenced in Journal of Addiction Research & Therapy

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