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- Title
Genome-wide association analysis of self-reported daytime sleepiness identifies 42 loci that suggest biological subtypes.
- Authors
Wang, Heming; Lane, Jacqueline M.; Jones, Samuel E.; Dashti, Hassan S.; Ollila, Hanna M.; Wood, Andrew R.; van Hees, Vincent T.; Brumpton, Ben; Winsvold, Bendik S.; Kantojärvi, Katri; Palviainen, Teemu; Cade, Brian E.; Sofer, Tamar; Song, Yanwei; Patel, Krunal; Anderson, Simon G.; Bechtold, David A.; Bowden, Jack; Emsley, Richard; Kyle, Simon D.
- Abstract
Excessive daytime sleepiness (EDS) affects 10–20% of the population and is associated with substantial functional deficits. Here, we identify 42 loci for self-reported daytime sleepiness in GWAS of 452,071 individuals from the UK Biobank, with enrichment for genes expressed in brain tissues and in neuronal transmission pathways. We confirm the aggregate effect of a genetic risk score of 42 SNPs on daytime sleepiness in independent Scandinavian cohorts and on other sleep disorders (restless legs syndrome, insomnia) and sleep traits (duration, chronotype, accelerometer-derived sleep efficiency and daytime naps or inactivity). However, individual daytime sleepiness signals vary in their associations with objective short vs long sleep, and with markers of sleep continuity. The 42 sleepiness variants primarily cluster into two predominant composite biological subtypes - sleep propensity and sleep fragmentation. Shared genetic links are also seen with obesity, coronary heart disease, psychiatric diseases, cognitive traits and reproductive ageing. A main symptom of chronic insufficient sleep is excessive daytime sleepiness. Here, Wang et al. report 42 genome-wide significant loci for self-reported daytime sleepiness in 452,071 individuals from the UK Biobank that cluster into two biological subtypes of either sleep propensity or sleep fragmentation.
- Subjects
UNITED Kingdom; DROWSINESS; LOCUS (Genetics); RESTLESS legs syndrome; MENTAL illness; SLEEP disorders; CORONARY disease
- Publication
Nature Communications, 2019, Vol 10, Issue 1, pN.PAG
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-019-11456-7