Genetic variation in APOL1 and MYH9 genes is associated with chronic kidney disease among Nigerians.

Abstract:

PURPOSE:A region of chromosome 22 which includes APOL1 and MYH9 genes was recently identified as a risk locus for non-diabetic forms of kidney disease, including idiopathic and HIV-associated focal segmental glomerular sclerosis and kidney disease clinically attributed to hypertension among African Americans. The purposes of the current study were, therefore, to examine the frequency of these variants and to determine whether they are associated with chronic kidney disease (CKD) among native Africans. METHODS:To investigate the possible evidence of association between variants in these genes and non-diabetic CKD among West Africans, we performed a case/control analysis in a sample of 166 Nigerians without history of European admixture. Our study included a total of 9 variants on APOL1 (n = 4) and MYH9 (n = 5) genes. RESULTS:We observed significantly strong associations with previously reported APOL1 variants rs73885319 and rs60910145, and their two-allele "G1" haplotype (P < 0.005). We did not observe significant evidence of association between non-diabetic CKD and any of the MYH9 variants or haplotypes after accounting for multiple testing in our sample. CONCLUSIONS:In conclusion, APOL1 risk variants are associated with non-diabetic forms of CKD among Nigerians of Yoruba ethnicity. Further information on APOL1/MYH9 variants may lead to screening programs, which could lead to earlier detection and interventions for non-diabetic kidney disease.

journal_name

Int Urol Nephrol

authors

Tayo BO,Kramer H,Salako BL,Gottesman O,McKenzie CA,Ogunniyi A,Bottinger EP,Cooper RS

doi

10.1007/s11255-012-0263-4

subject

Has Abstract

pub_date

2013-04-01 00:00:00

pages

485-94

issue

2

eissn

0301-1623

issn

1573-2584

journal_volume

45

pub_type

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