ASSOCIATIONS BETWEEN SLEEP AND REST: ACTIVITY CHARACTERISTICS AND METABOLOMIC PROFILES IN OLDER MEN. (20th December 2022)

• Record Type: Journal Article
• Authors: Xiao, Qian; Sampson, Joshua; Shadyab, Aladdin; LaCroix, Andrea; Yaffe, Kristine; Stone, Katie
• Is Part Of: Innovation in aging. Volume 6(2022)Supplement 1
• Page Start: 363
• Page End: 364
• Publication Date: 2022-12-20
• Subjects: Aging -- Periodicals; Gerontology -- Periodicals; 612.67
• DOI: 10.1093/geroni/igac059.1437
• Languages: English
• ISSNs: 2399-5300

Abstract

Abstract: The association of sleep and rest-activity rhythms (RAR) with metabolic health is not fully understood. Previous studies have identified multiple metabolite markers in amino acid and lipid pathways associated with various characteristics of sleep. However, most of the studies used self-reported sleep, and limited studies have examined 24-hour RAR profiles, a more complete picture of activity. We studied 950 older men and measured metabolomics from fasting blood samples. We identified numerous metabolomic markers that were cross-sectionally associated with actigraphy-based measures of sleep (total sleep time, sleep efficiency, sleep timing) and RAR (amplitude, acrophase, mesor and overall rhythmicity). The majority of the associated metabolites were amino acids and lipids from a wide range of pathways, including metabolism pathways of branched chain amino acid metabolism, fatty acids, and gamma-glutamyl amino acids. Our preliminary findings suggest that sleep and RAR are widely involved in human metabolism.