Biological Insights Into Muscular Strength: Genetic Findings in the UK Biobank

Tikkanen, EmmiStanford Univ, Dept Med, Sch Med, Div Cardiovasc Med, Stanford, CA 94305 USA (författare)

Biological Insights Into Muscular Strength : Genetic Findings in the UK Biobank

We performed a large genome-wide association study to discover genetic variation associated with muscular strength, and to evaluate shared genetic aetiology with and causal effects of muscular strength on several health indicators. In our discovery analysis of 223,315 individuals, we identified 101 loci associated with grip strength (P <5 x 10(-8)). Of these, 64 were associated (P < 0.01 and consistent direction) also in the replication dataset (N=111,610). eQTL analyses highlighted several genes known to play a role in neuro-developmental disorders or brain function, and the results from meta-analysis showed a significant enrichment of gene expression of brain-related transcripts. Further, we observed inverse genetic correlations of grip strength with cardiometabolic traits, and positive correlation with parents' age of death and education. We also showed that grip strength had shared biological pathways with indicators of frailty, including cognitive performance scores. By use of Mendelian randomization, we provide evidence that higher grip strength is protective of both coronary heart disease (OR= 0.69, 95% CI 0.60-0.79, P < 0.0001) and atrial fibrillation (OR = 0.75, 95% CI 0.62-0.90, P = 0.003). In conclusion, our results show shared genetic aetiology between grip strength, and cardiometabolic and cognitive health; and suggest that maintaining muscular strength could prevent future cardiovascular events.

Gustafsson, StefanUppsala universitet,Science for Life Laboratory, SciLifeLab,Molekylär epidemiologi(Swepub:uu)stegu732 (författare)
Amar, DavidStanford Univ, Dept Med, Sch Med, Div Cardiovasc Med, Stanford, CA 94305 USA (författare)
Shcherbina, AnnaStanford Univ, Dept Med, Sch Med, Div Cardiovasc Med, Stanford, CA 94305 USA (författare)
Waggott, DarylStanford Univ, Dept Med, Sch Med, Div Cardiovasc Med, Stanford, CA 94305 USA (författare)
Ashley, Euan A.Stanford Univ, Dept Med, Sch Med, Div Cardiovasc Med, Stanford, CA 94305 USA (författare)
Ingelsson, ErikStanford Univ, Dept Med, Sch Med, Div Cardiovasc Med, Stanford, CA 94305 USA;Stanford Univ, Stanford Cardiovasc Inst, Stanford, CA 94305 USA (författare)
Stanford Univ, Dept Med, Sch Med, Div Cardiovasc Med, Stanford, CA 94305 USAScience for Life Laboratory, SciLifeLab (creator_code:org_t)

Av författaren/redakt...: Tikkanen, Emmi; Gustafsson, Stef ...; Amar, David; Shcherbina, Anna; Waggott, Daryl; Ashley, Euan A.; visa fler...; Ingelsson, Erik; visa färre...

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