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Multi-ethnic polygenic risk modifies the association between APOL1 high risk genotypes and chronic kidney disease

Vy, H. M. T.; Gulamali, F. F.; Glicksberg, B.; Gutierrez, O.; Cooper, R.; Bottinger, E. P.; Cho, J.; Loos, R. J. F.; Horowitz, C. R.; Do, R.; Nadkarni, G. N.

2021-11-14 nephrology
10.1101/2021.11.12.21266238 medRxiv
Show abstract

The burden of advanced chronic kidney disease (CKD) falls disproportionately on minorities including African Americans (AAs) and Hispanic Americans (HAs) with admixed ancestry. Even though APOL1 high-risk genotypes increase risk of kidney disease, their penetrance is incomplete, indicating that the modification of APOL1 high risk may be polygenic. For this study, we used three multi-ethnic cohorts with APOL1 high risk genotypes and calculated a multi-ethnic PRS using publicly available summary statistics. We show that CKD risk is significantly modified by a multi-ethnic polygenic risk score. Standardizing population screening for CKD by including APOL1 high-risk genotypes and polygenic risk score may improve risk stratification and outcomes.

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