Analysis of pharmacogenetic traits in two distinct South African populations

摘要

Our knowledge of pharmacogenetic variability in diverse populations is scarce, especially in sub-Saharan Africa. To bridge this gap in knowledge, we characterised population frequencies of clinically relevant pharmacogenetic traits in two distinct South African population groups. We genotyped 211 tagging single nucleotide polymorphisms (tagSNPs) in 12 genes that influence antiretroviral drug disposition, in 176 South African individuals belonging to two distinct population groups residing in the Western Cape: the Xhosa ( n = 109) and Cape Mixed Ancestry (CMA) ( n = 67) groups. The minor allele frequencies (MAFs) of eight tagSNPs in six genes (those encoding the ATP binding cassette sub-family B, member 1 [ ABCB1 ], four members of the cytochrome P450 family [ CYP2A7P1, CYP2C18, CYP3A4, CYP3A5 ] and UDP-glucuronosyltransferase 1 [ UGT1A1 ]) were significantly different between the Xhosa and CMA populations (Bonferroni p