The transferability of lipid loci across African, Asian and European cohorts

Publication type

Journal Article

Published in

Nature Communications

Authors

Karoline Kuchenbaecker, Nikita Telkar, Theresa Reiker, Robin G. Walters, Kuang Lin, Anders Eriksson, Deepti Gurdasani, Arthur Gilly, Lorraine Southam, Emmanouil Tsafantakis, Maria Karaleftheri, Janet Seeley, Anatoli Kamali, Gershim Asiki, Iona Y. Millwood, Michael Holmes, Huaidong Du, Yu Guo, Meena Kumari, George Dedoussis, Liming Li, Zhengming Chen, Manjinder S. Sandhu and Eleftheria Zeggini

Publication date

Summary

Most genome-wide association studies are based on samples of European descent. We assess whether the genetic determinants of blood lipids, a major cardiovascular risk factor, are shared across populations. Genetic correlations for lipids between European-ancestry and Asian cohorts are not significantly different from 1. A genetic risk score based on LDL-cholesterol-associated loci has consistent effects on serum levels in samples from the UK, Uganda and Greece (r = 0.23–0.28, p < 1.9 × 10−14). Overall, there is evidence of reproducibility for ~75% of the major lipid loci from European discovery studies, except triglyceride loci in the Ugandan samples (10% of loci). Individual transferable loci are identified using trans-ethnic colocalization. Ten of fourteen loci not transferable to the Ugandan population have pleiotropic associations with BMI in Europeans; none of the transferable loci do. The non-transferable loci might affect lipids by modifying food intake in environments rich in certain nutrients, which suggests a potential role for gene-environment interactions.

Volume

10:4330

DOI

https://doi.org/10.1038/s41467-019-12026-7

ISSN

16

Subjects

Medicine, Demography, Ethnic Groups, Health, Biology and Genetics

Notes

Open Access; This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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