PMID- 37792965 OWN - NLM STAT- MEDLINE DCOM- 20240112 LR - 20240210 IS - 1550-9109 (Electronic) IS - 0161-8105 (Print) IS - 0161-8105 (Linking) VI - 47 IP - 1 DP - 2024 Jan 11 TI - Circadian misalignment impacts the association of visceral adiposity with metabolic syndrome in adolescents. LID - 10.1093/sleep/zsad262 [doi] LID - zsad262 AB - STUDY OBJECTIVES: Although insufficient sleep is a risk factor for metabolic syndrome (MetS), the circadian timing of sleep (CTS) is also involved in cardiac and metabolic regulation. We examined whether delays and deviations in the sleep midpoint (SM), a measure of CTS, modify the association between visceral adipose tissue (VAT) and MetS in adolescents. METHODS: We evaluated 277 adolescents (median 16 years) who had at least 5 nights of at-home actigraphy (ACT), in-lab polysomnography (PSG), dual-energy X-ray absorptiometry (DXA) scan, and MetS score data. Sleep midpoint (SM), sleep irregularity (SI), and social jetlag (SJL) were examined as effect modifiers of the association between VAT and MetS, including waist circumference, blood pressure, insulin resistance, triglycerides, and cholesterol. Linear regression models adjusted for demographics, ACT-sleep duration, ACT-sleep variability, and PSG-apnea-hypopnea index. RESULTS: The association between VAT and MetS was significantly stronger (p-values for interactions < 0.001) among adolescents with a schooldays SM later than 4:00 (2.66 [0.30] points increase in MetS score), a SI higher than 1 hour (2.49 [0.30]) or a SJL greater than 1.5 hours (2.15 [0.36]), than in those with an earlier SM (<3:00; 1.76 [0.28]), lower SI (<30 minutes; 0.98 [0.70]), or optimal SJL (<30 minutes; 1.08 [0.45]). CONCLUSIONS: A delayed sleep phase, an irregular sleep-wake cycle, and greater social jetlag on schooldays identified adolescents in whom VAT had a stronger association with MetS. Circadian misalignment is a risk factor that enhances the impact of visceral obesity on cardiometabolic morbidity and should be a target of preventative strategies in adolescents. CI - (c) The Author(s) 2023. Published by Oxford University Press on behalf of Sleep Research Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Morales-Ghinaglia, Natasha AU - Morales-Ghinaglia N AUID- ORCID: 0000-0002-5312-2509 AD - Sleep Research and Treatment Center, College of Medicine, Department of Psychiatry and Behavioral Health, Penn State University, Hershey, PA, USA. FAU - He, Fan AU - He F AUID- ORCID: 0000-0002-4145-9999 AD - Department of Public Health Sciences, College of Medicine, Penn State University, Hershey, PA, USA. FAU - Calhoun, Susan L AU - Calhoun SL AD - Sleep Research and Treatment Center, College of Medicine, Department of Psychiatry and Behavioral Health, Penn State University, Hershey, PA, USA. FAU - Vgontzas, Alexandros N AU - Vgontzas AN AUID- ORCID: 0000-0002-8323-7526 AD - Sleep Research and Treatment Center, College of Medicine, Department of Psychiatry and Behavioral Health, Penn State University, Hershey, PA, USA. FAU - Liao, Jason AU - Liao J AD - Department of Public Health Sciences, College of Medicine, Penn State University, Hershey, PA, USA. FAU - Liao, Duanping AU - Liao D AD - Department of Public Health Sciences, College of Medicine, Penn State University, Hershey, PA, USA. FAU - Bixler, Edward O AU - Bixler EO AD - Sleep Research and Treatment Center, College of Medicine, Department of Psychiatry and Behavioral Health, Penn State University, Hershey, PA, USA. FAU - Fernandez-Mendoza, Julio AU - Fernandez-Mendoza J AUID- ORCID: 0000-0001-9584-6161 AD - Sleep Research and Treatment Center, College of Medicine, Department of Psychiatry and Behavioral Health, Penn State University, Hershey, PA, USA. LA - eng GR - R01 HL136587/HL/NHLBI NIH HHS/United States GR - R01HL136587/HL/NHLBI NIH HHS/United States PT - Journal Article PL - United States TA - Sleep JT - Sleep JID - 7809084 SB - IM MH - Adolescent MH - Humans MH - *Metabolic Syndrome/complications/metabolism MH - Obesity, Abdominal/complications/metabolism MH - Adiposity/physiology MH - *Insulin Resistance/physiology MH - Risk Factors MH - Sleep/physiology MH - Jet Lag Syndrome PMC - PMC10782492 OTO - NOTNLM OT - adolescents OT - circadian rhythms OT - metabolic disease OT - obesity EDAT- 2023/10/04 18:42 MHDA- 2024/01/12 06:42 PMCR- 2024/10/04 CRDT- 2023/10/04 14:13 PHST- 2023/08/02 00:00 [received] PHST- 2023/09/08 00:00 [revised] PHST- 2024/10/04 00:00 [pmc-release] PHST- 2024/01/12 06:42 [medline] PHST- 2023/10/04 18:42 [pubmed] PHST- 2023/10/04 14:13 [entrez] AID - 7288965 [pii] AID - zsad262 [pii] AID - 10.1093/sleep/zsad262 [doi] PST - ppublish SO - Sleep. 2024 Jan 11;47(1):zsad262. doi: 10.1093/sleep/zsad262.