Multiancestry Genome-Wide Association Study of Lipid Levels Incorporating Gene-Alcohol Interactions

Paul S de Vries, Michael R Brown, Amy R Bentley, Yun J Sung, Thomas W Winkler, Ioanna Ntalla, Karen Schwander, Aldi T Kraja, Xiuqing Guo, Nora Franceschini, Ching-Yu Cheng, Xueling Sim, Dina Vojinovic, Jennifer E Huffman, Solomon K Musani, Changwei Li, Mary F Feitosa, Melissa A Richard, Raymond Noordam, Hugues AschardTraci M Bartz, Lawrence F Bielak, Xuan Deng, Rajkumar Dorajoo, Kurt K Lohman, Alisa K Manning, Tuomo Rankinen, Albert V Smith, Salman M Tajuddin, Evangelos Evangelou, Mariaelisa Graff, Maris Alver, Mathilde Boissel, Jin Fang Chai, Xu Chen, Jasmin Divers, Ilaria Gandin, Chuan Gao, Anuj Goel, Yanick Hagemeijer, Sarah E Harris, Fernando P Hartwig, Meian He, Andrea R V R Horimoto, Fang-Chi Hsu, Anne U Jackson, Anuradhani Kasturiratne, Pirjo Komulainen, Jing Hua Zhao, Tuomas O Kilpeläinen, InterAct Consortium

    27 Citationer (Scopus)

    Abstract

    A person's lipid profile is influenced by genetic variants and alcohol consumption, but the contribution of interactions between these exposures has not been studied. We therefore incorporated gene-Alcohol interactions into a multiancestry genome-wide association study of levels of high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and triglycerides. We included 45 studies in stage 1 (genome-wide discovery) and 66 studies in stage 2 (focused follow-up), for a total of 394,584 individuals from 5 ancestry groups. Analyses covered the period July 2014-November 2017. Genetic main effects and interaction effects were jointly assessed by means of a 2- degrees-of-freedom (df) test, and a 1-df test was used to assess the interaction effects alone. Variants at 495 loci were at least suggestively associated (P < 1 × 10?6) with lipid levels in stage 1 and were evaluated in stage 2, followed by combined analyses of stage 1 and stage 2. In the combined analysis of stages 1 and 2, a total of 147 independent loci were associated with lipid levels at P < 5 × 10?8 using 2-df tests, of which 18 were novel. No genome-wide-significant associations were found testing the interaction effect alone. The novel loci included several genes (proprotein convertase subtilisin/kexin type 5 (PCSK5), vascular endothelial growth factor B (VEGFB), and apolipoprotein B mRNA editing enzyme, catalytic polypeptide 1 (APOBEC1) complementation factor (A1CF)) that have a putative role in lipid metabolism on the basis of existing evidence from cellular and experimental models.

    OriginalsprogEngelsk
    TidsskriftAmerican Journal of Epidemiology
    Vol/bind188
    Udgave nummer6
    Sider (fra-til)1033-1054
    ISSN0002-9262
    DOI
    StatusUdgivet - 1 jun. 2019

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