A genome-wide association study provides insights into the genetic etiology of 57 essential and non-essential trace elements in humans
Moksnes, Marta Riise; Hansen, Ailin Falkmo; Wolford, Brooke; Thomas, Laurent Francois; Rasheed, Humaira; Simic, Anica; Bhatta, Laxmi; Brantsæter, Anne Lise; Surakka, Ida; Zhou, Wei; Magnus, Per Minor; Njølstad, Pål Rasmus; Andreassen, Ole; Syversen, Tore; Zheng, Jie; Fritsche, Lars; Evans, David M.; Warrington, Nicole Maree; Nøst, Therese Haugdahl; Åsvold, Bjørn Olav; Flaten, Trond Peder; Willer, Cristen J.; Hveem, Kristian; Brumpton, Ben Michael
Journal article, Peer reviewed
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Date
2024Metadata
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- Department of Clinical Science [2397]
- Registrations from Cristin [10467]
Abstract
Trace elements are important for human health but may exert toxic or adverse effects. Mechanisms of uptake, distribution, metabolism, and excretion are partly under genetic control but have not yet been extensively mapped. Here we report a comprehensive multi-element genome-wide association study of 57 essential and non-essential trace elements. We perform genome-wide association meta-analyses of 14 trace elements in up to 6564 Scandinavian whole blood samples, and genome-wide association studies of 43 trace elements in up to 2819 samples measured only in the Trøndelag Health Study (HUNT). We identify 11 novel genetic loci associated with blood concentrations of arsenic, cadmium, manganese, selenium, and zinc in genome-wide association meta-analyses. In HUNT, several genome-wide significant loci are also indicated for other trace elements. Using two-sample Mendelian randomization, we find several indications of weak to moderate effects on health outcomes, the most precise being a weak harmful effect of increased zinc on prostate cancer. However, independent validation is needed. Our current understanding of trace element-associated genetic variants may help establish consequences of trace elements on human health.