학술논문

Habitual sleep duration is associated with BMI and macronutrient intake and may be modified by CLOCK genetic variants 2–4
Document Type
article
Source
American Journal of Clinical Nutrition. 101(1)
Subject
Aging
Sleep Research
Obesity
Prevention
Nutrition
Genetics
Neurosciences
Behavioral and Social Science
Oral and gastrointestinal
Cardiovascular
Metabolic and endocrine
Cancer
Adult
Body Mass Index
CLOCK Proteins
Cohort Studies
Cross-Sectional Studies
Diet
Dietary Proteins
Energy Intake
Fatty Acids
Unsaturated
Female
Gene-Environment Interaction
Genetic Predisposition to Disease
Humans
Male
Middle Aged
Polymorphism
Single Nucleotide
Sleep
White People
Young Adult
CLOCK
circadian rhythm
dietary intake
gene-environment interaction
sleep duration
gene-environment
interaction
Engineering
Medical and Health Sciences
Nutrition & Dietetics
Language
Abstract
BackgroundShort sleep duration has been associated with greater risks of obesity, hypertension, diabetes, and cardiovascular disease. Also, common genetic variants in the human Circadian Locomotor Output Cycles Kaput (CLOCK) show associations with ghrelin and total energy intake.ObjectivesWe examined associations between habitual sleep duration, body mass index (BMI), and macronutrient intake and assessed whether CLOCK variants modify these associations.DesignWe conducted inverse-variance weighted, fixed-effect meta-analyses of results of adjusted associations of sleep duration and BMI and macronutrient intake as percentages of total energy as well as interactions with CLOCK variants from 9 cohort studies including up to 14,906 participants of European descent from the Cohorts for Heart and Aging Research in Genomic Epidemiology Consortium.ResultsWe observed a significant association between sleep duration and lower BMI (β ± SE = 0.16 ± 0.04, P < 0.0001) in the overall sample; however, associations between sleep duration and relative macronutrient intake were evident in age- and sex-stratified analyses only. We observed a significant association between sleep duration and lower saturated fatty acid intake in younger (aged 20-64 y) adults (men: 0.11 ± 0.06%, P = 0.03; women: 0.10 ± 0.05%, P = 0.04) and with lower carbohydrate (-0.31 ± 0.12%, P < 0.01), higher total fat (0.18 ± 0.09%, P = 0.05), and higher PUFA (0.05 ± 0.02%, P = 0.02) intakes in older (aged 65-80 y) women. In addition, the following 2 nominally significant interactions were observed: between sleep duration and rs12649507 on PUFA intake and between sleep duration and rs6858749 on protein intake.ConclusionsOur results indicate that longer habitual sleep duration is associated with lower BMI and age- and sex-specific favorable dietary behaviors. Differences in the relative intake of specific macronutrients associated with short sleep duration could, at least in part, explain previously reported associations between short sleep duration and chronic metabolic abnormalities. In addition, the influence of obesity-associated CLOCK variants on the association between sleep duration and macronutrient intake suggests that longer habitual sleep duration could ameliorate the genetic predisposition to obesity via a favorable dietary profile.