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      APOL1 variants associate with increased risk of CKD among African Americans.

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          Abstract

          Although case-control studies suggest that African Americans with common coding variants in the APOL1 gene are 5-29 times more likely than those individuals without such variants to have focal segmental glomerulosclerosis, HIV-associated nephropathy, or ESRD, prospective studies have not yet evaluated the impact of these variants on CKD in a community-based sample of African Americans. Here, we studied whether the APOL1 G1 and G2 risk alleles associate with the development of CKD and progression to ESRD by analyzing data from 3067 African Americans in the Atherosclerosis Risk in Communities Study who did not have CKD at baseline. Carrying two risk alleles associated with a 1.49-fold increased risk of CKD (95% CI=1.02 to 2.17) and a 1.88-fold increased risk of ESRD (95% CI=1.20 to 2.93) compared with zero or one risk allele; associations persisted after adjusting for European ancestry. Among participants who developed CKD, those participants with two risk alleles were more likely to progress to ESRD than their counterparts with zero or one risk allele (HR=2.22, 95% CI=1.01 to 4.84). In conclusion, APOL1 risk variants are risk factors for the development of CKD and progression from CKD to ESRD among African Americans in the general population.

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          Author and article information

          Journal
          J Am Soc Nephrol
          Journal of the American Society of Nephrology : JASN
          American Society of Nephrology (ASN)
          1533-3450
          1046-6673
          Sep 2013
          : 24
          : 9
          Affiliations
          [1 ] Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205, USA.
          Article
          ASN.2013010113
          10.1681/ASN.2013010113
          3752955
          23766536
          e02b08e4-1d9d-44b1-bb23-20c7e0546891
          History

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