APOL1 Risk Variants Are Strongly Associated with HIV-Associated Nephropathy in Black South Africans
- PMID: 25788523
- PMCID: PMC4625661
- DOI: 10.1681/ASN.2014050469
APOL1 Risk Variants Are Strongly Associated with HIV-Associated Nephropathy in Black South Africans
Abstract
APOL1 variants are associated with HIV-associated nephropathy and FSGS in African Americans. The prevalence of these variants in African populations with CKD in HIV-1 infection has not been investigated. We determined the role of APOL1 variants in 120 patients with HIV-associated nephropathy and CKD and 108 controls from a South-African black population. Patients with CKD were selected on the basis of histology. Genotypes were successfully determined for APOL1 G1 and G2 variants and 42 single nucleotide polymorphisms, including 18 ancestry informative markers, for 116 patients with CKD (96.7%; 38 patients with HIV-associated nephropathy, 39 patients with HIV-positive CKD, and 39 patients with HIV-negative CKD), and 108 controls (100%). Overall, 79% of patients with HIV-associated nephropathy and 2% of population controls carried two risk alleles. In a recessive model, individuals carrying any combination of two APOL1 risk alleles had 89-fold higher odds (95% confidence interval, 18 to 912; P<0.001) of developing HIV-associated nephropathy compared with HIV-positive controls. Population allele frequencies were 7.3% for G1 and 11.1% for G2. APOL1 risk alleles were not significantly associated with other forms of CKD. These results indicate HIV-positive, antiretroviral therapy-naïve South-African blacks with two APOL1 risk alleles are at very high risk for developing HIV-associated nephropathy. Further studies are required to determine the effect of APOL1 risk variants on kidney diseases in other regions of sub-Saharan Africa.
Keywords: CKD; HIV nephropathy; collapsing glomerulopathy; development; genetics.
Copyright © 2015 by the American Society of Nephrology.
Figures


Comment in
-
Genetics: Strong association of APOL1 risk variants with HIV-associated nephropathy in black South Africans.Nat Rev Nephrol. 2015 Jun;11(6):318. doi: 10.1038/nrneph.2015.51. Epub 2015 Apr 7. Nat Rev Nephrol. 2015. PMID: 25848879 No abstract available.
References
-
- Kitiyakara C, Kopp JB, Eggers P: Trends in the epidemiology of focal segmental glomerulosclerosis. Semin Nephrol 23: 172–182, 2003 - PubMed
-
- Kopp JB, Winkler C: HIV-associated nephropathy in African Americans. Kidney Int Suppl 83: S43–S49, 2003 - PubMed
-
- Mohanram A, Zhang Z, Shahinfar S, Keane WF, Brenner BM, Toto RD: Anemia and end-stage renal disease in patients with type 2 diabetes and nephropathy. Kidney Int 66: 1131–1138, 2004 - PubMed
-
- Collins AJ, Foley RN, Chavers B, Gilbertson D, Herzog C, Johansen K, Kasiske B, Kutner N, Liu J, St Peter W, Guo H, Gustafson S, Heubner B, Lamb K, Li S, Li S, Peng Y, Qiu Y, Roberts T, Skeans M, Snyder J, Solid C, Thompson B, Wang C, Weinhandl E, Zaun D, Arko C, Chen SC, Daniels F, Ebben J, Frazier E, Hanzlik C, Johnson R, Sheets D, Wang X, Forrest B, Constantini E, Everson S, Eggers P, Agodoa L: United States Renal Data System 2011 Annual Data Report: Atlas of chronic kidney disease and end-stage renal disease in the United States. Am J Kidney Dis 59[Suppl 1]: A7, e1–e420, 2012 - PubMed
-
- Laurinavicius A, Hurwitz S, Rennke HG: Collapsing glomerulopathy in HIV and non-HIV patients: A clinicopathological and follow-up study. Kidney Int 56: 2203–2213, 1999 - PubMed
Publication types
MeSH terms
Substances
Grants and funding
LinkOut - more resources
Full Text Sources
Miscellaneous