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Genetic polymorphisms of multidrug and toxin extrusion proteins (MATE1 and MATE2) in South Indian population.


ABSTRACT: Introduction: Drug transporters are key determinants of pharmacokinetic and pharmacodynamic profiles of certain drugs. SLC47A1 (MATE1) and SLC47A2 (MATE2) are major efflux transporters involved in the hepatic and renal excretion of many cationic drugs including metformin. Our study was proposed to determine the normative frequencies of the single nucleotide polymorphisms (SNPs) rs2289669 and rs12943590 in the SLC47A1 and SLC47A2 genes, respectively, in South Indian population and also to compare those with those of the HapMap populations. Methods: One hundred two unrelated healthy volunteers from South India were enrolled in the study. Genomic DNA was extracted by 'phenol-chloroform extraction method' from the peripheral blood leucocytes and genotyping was accomplished by real-time polymerase chain reaction using TaqMan SNP genotyping assay method. Results: In contrast to other populations, the minor allele in SLC47A1 gene was found to be "G" with a frequency of 46.6% in South Indian population. The populations of Hans Chinese in Beijing (HCB) [P = 0.017] and Japanese in Tokyo (JPT) [P < 0.001] had significantly different genotype and allele frequencies (SNP rs2289669) compared to those of South Indian population. Similarly, in the SNP rs12943590 of SLC47A2 gene, the genotype and allele frequencies of South Indian population differed significantly from those of Yoruba in Ibadan, Nigeria (YRI) [P < 0.001] and Utah residents with Northern and Western European ancestry (CEU) [P = 0.005] populations. Conclusion: Thus, the allele and genotype distributions of SLC47A1 and SLC47A2 gene polymorphisms were established in South Indian population and were found to be different from the frequencies of other ethnicities.

SUBMITTER: Raj GM 

PROVIDER: S-EPMC5439386 | BioStudies | 2017-01-01

REPOSITORIES: biostudies

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