Biological and clinical insights from genetics of insomnia symptoms


Jacqueline M Lane, Samuel E Jones, Hassan S Dashti, Andrew R Wood, Krishna G Aragam, Vincent T van Hees, Linn B Strand, Bendik S Winsvold, Heming Wang, Jack Bowden, Yanwei Song, Krunal Patel, Simon G Anderson, Robin N Beaumont, David A Bechtold, Brian E Cade, Mary Haas, Sekar Kathiresan, Max A Little, Annemarie I Luik, Andrew S Loudon, Shaun Purcell, Rebecca C Richmond, Frank AJL Scheer, Barbara Schormair, Jessica Tyrrell, John W Winkelman, Juliane Winkelmann, Kristian Hveem, Chen Zhao, Jonas B Nielsen, Cristen J Willer, Susan Redline, Kai Spiegelhalder, Simon D Kyle, David W Ray, John-Anker Zwart, Ben Brumpton, Timothy M Frayling, Deborah A Lawlor, Martin K Rutter, Michael N Weedon, and Richa Saxena. 2019. “Biological and clinical insights from genetics of insomnia symptoms.” Nat Genet, 51, 3, Pp. 387-393.


Insomnia is a common disorder linked with adverse long-term medical and psychiatric outcomes. The underlying pathophysiological processes and causal relationships of insomnia with disease are poorly understood. Here we identified 57 loci for self-reported insomnia symptoms in the UK Biobank (n = 453,379) and confirmed their effects on self-reported insomnia symptoms in the HUNT Study (n = 14,923 cases and 47,610 controls), physician-diagnosed insomnia in the Partners Biobank (n = 2,217 cases and 14,240 controls), and accelerometer-derived measures of sleep efficiency and sleep duration in the UK Biobank (n = 83,726). Our results suggest enrichment of genes involved in ubiquitin-mediated proteolysis and of genes expressed in multiple brain regions, skeletal muscle, and adrenal glands. Evidence of shared genetic factors was found between frequent insomnia symptoms and restless legs syndrome, aging, and cardiometabolic, behavioral, psychiatric, and reproductive traits. Evidence was found for a possible causal link between insomnia symptoms and coronary artery disease, depressive symptoms, and subjective well-being.