Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in Monkeys

Over the past decades, the global prevalence of Type 2 diabetes mellitus (T2D) and impaired glucose tolerance (IGT) has been increasing at an epidemic rate, yet the exact cause remains unknown. It is widely accepted that glucose metabolism can be impaired by circadian rhythms and sleep disturbances....

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Main Authors: Shuxing Wang, Xuange Cheng, Zihao Liang, Zhenyi Chen, Jiankai Zhang, Qiang Xu
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2024/5112055
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author Shuxing Wang
Xuange Cheng
Zihao Liang
Zhenyi Chen
Jiankai Zhang
Qiang Xu
author_facet Shuxing Wang
Xuange Cheng
Zihao Liang
Zhenyi Chen
Jiankai Zhang
Qiang Xu
author_sort Shuxing Wang
collection DOAJ
description Over the past decades, the global prevalence of Type 2 diabetes mellitus (T2D) and impaired glucose tolerance (IGT) has been increasing at an epidemic rate, yet the exact cause remains unknown. It is widely accepted that glucose metabolism can be impaired by circadian rhythms and sleep disturbances. Concurrently, exposures to light at night have been closely linked to circadian and sleep disturbances. However, there is no direct experiment on primates to demonstrate the precise extent of how serious light pollution impairs glucose metabolism, whether people will eventually become accustomed to this environment, and whether the pollution has synergistic impairing effects with aging and weight on glucose metabolism. To quantitatively address these questions, 137 cynomolgus were exposed to three distinct nocturnal light intensities for consecutive 10 months. Monthly glucose metabolism assessments were conducted. Data pertaining to the mortality rate of preexisting diabetes, incidence of light-induced diabetes and IGT, and alterations in insulin secretion were collected and analyzed. The results show that nocturnal light (1) caused premature deaths in individuals with preexisting diabetes; (2) intensity-dependently induced diabetes and IGT in previous healthy monkeys; (3) intensity-dependently reduced melatonin secretion; (4) had a synergistic impairing effect on glucose metabolism with aging and weight; and (5) although monkeys would eventually adapt to the environment, the disrupted glucose metabolism would not fully recover in most individuals. In conclusion, nocturnal light is associated with the global high prevalence of T2D and IGT. The harmful effects of light pollution on glucose metabolism are synergistic with age and weight.
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institution Kabale University
issn 2314-6753
language English
publishDate 2024-01-01
publisher Wiley
record_format Article
series Journal of Diabetes Research
spelling doaj-art-5dfa876594dd42c398eca6933307ada32025-02-08T00:00:07ZengWileyJournal of Diabetes Research2314-67532024-01-01202410.1155/2024/5112055Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in MonkeysShuxing Wang0Xuange Cheng1Zihao Liang2Zhenyi Chen3Jiankai Zhang4Qiang Xu5Department of AnatomyDepartment of Food and Pharmaceutical SciencesQingyuan Hospital of Traditional Chinese MedicinePrimate Research CenterDepartment of AnatomyPrimate Research CenterOver the past decades, the global prevalence of Type 2 diabetes mellitus (T2D) and impaired glucose tolerance (IGT) has been increasing at an epidemic rate, yet the exact cause remains unknown. It is widely accepted that glucose metabolism can be impaired by circadian rhythms and sleep disturbances. Concurrently, exposures to light at night have been closely linked to circadian and sleep disturbances. However, there is no direct experiment on primates to demonstrate the precise extent of how serious light pollution impairs glucose metabolism, whether people will eventually become accustomed to this environment, and whether the pollution has synergistic impairing effects with aging and weight on glucose metabolism. To quantitatively address these questions, 137 cynomolgus were exposed to three distinct nocturnal light intensities for consecutive 10 months. Monthly glucose metabolism assessments were conducted. Data pertaining to the mortality rate of preexisting diabetes, incidence of light-induced diabetes and IGT, and alterations in insulin secretion were collected and analyzed. The results show that nocturnal light (1) caused premature deaths in individuals with preexisting diabetes; (2) intensity-dependently induced diabetes and IGT in previous healthy monkeys; (3) intensity-dependently reduced melatonin secretion; (4) had a synergistic impairing effect on glucose metabolism with aging and weight; and (5) although monkeys would eventually adapt to the environment, the disrupted glucose metabolism would not fully recover in most individuals. In conclusion, nocturnal light is associated with the global high prevalence of T2D and IGT. The harmful effects of light pollution on glucose metabolism are synergistic with age and weight.http://dx.doi.org/10.1155/2024/5112055
spellingShingle Shuxing Wang
Xuange Cheng
Zihao Liang
Zhenyi Chen
Jiankai Zhang
Qiang Xu
Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in Monkeys
Journal of Diabetes Research
title Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in Monkeys
title_full Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in Monkeys
title_fullStr Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in Monkeys
title_full_unstemmed Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in Monkeys
title_short Nocturnal Light Pollution Synergistically Impairs Glucose Metabolism With Age and Weight in Monkeys
title_sort nocturnal light pollution synergistically impairs glucose metabolism with age and weight in monkeys
url http://dx.doi.org/10.1155/2024/5112055
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AT zihaoliang nocturnallightpollutionsynergisticallyimpairsglucosemetabolismwithageandweightinmonkeys
AT zhenyichen nocturnallightpollutionsynergisticallyimpairsglucosemetabolismwithageandweightinmonkeys
AT jiankaizhang nocturnallightpollutionsynergisticallyimpairsglucosemetabolismwithageandweightinmonkeys
AT qiangxu nocturnallightpollutionsynergisticallyimpairsglucosemetabolismwithageandweightinmonkeys