1. Sleep duration and heart failure risk: Insights from a Mendelian Randomization Study.
- Author
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Zeng L, Fu S, Xu H, Zhu L, Li X, Cheng K, Li Y, and Hu K
- Subjects
- Humans, Male, Female, Sleep Initiation and Maintenance Disorders genetics, Sleep Initiation and Maintenance Disorders epidemiology, Middle Aged, Europe epidemiology, Risk Factors, Genome-Wide Association Study, Time Factors, Sleep Duration, Mendelian Randomization Analysis, Heart Failure genetics, Heart Failure epidemiology, Polymorphism, Single Nucleotide, Sleep genetics
- Abstract
To investigate the causal relationship between sleep duration and heart failure (HF) in a European population. We focused on the continuous sleep duration of 460,099 European individuals as our primary exposure. Genome-wide significant single nucleotide polymorphisms (SNPs, n = 9851,867) linked to continuous sleep duration were adopted as instrumental variables. The outcome of interest was based on HF events in a European cohort (n = 977,323; with 930,014 controls and 47,309 cases). We employed a two-sample Mendelian randomization (MR) approach to infer causality between sleep duration and the incidence of HF. For validation purposes, an additional cohort of 336,965 European individuals diagnosed with insomnia was selected as a secondary exposure group. Using its SNPs, a subsequent two-sample MR analysis was conducted with the HF cohort to further corroborate our initial findings. Employing the MR methodology, we selected 57 SNPs that are associated with sleep duration, and 24 SNPs that are associated with insomnia as instrumental variables. We discerned a substantial association between genetically inferred sleep duration and HF risk (odds ratio: 0.61; 95% confidence interval: 0.47-0.78, P < .0001). Our subsequent analysis highlighted a pronounced increased HF risk associated with insomnia (odds ratio: 1.54; 95% confidence interval: 1.08-2.17, P < .02). These conclusions were further bolstered by consistent results from sensitivity analyses. Our study suggests a causal linkage between sleep duration and the onset risk of HF in the European population. Notably, shorter sleep durations were associated with a heightened risk of HF., Competing Interests: The authors declare no conflict of interest, financial or otherwise. We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work. There is no professional or other personal interest in any product, service, and/or company that could be construed as influencing the position presented in the manuscript entitled., (Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.)
- Published
- 2024
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