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Rashed N, Liu W, Zhou X, Bode AM, Luo X. The role of circadian gene CLOCK in cancer. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119782. [PMID: 38871225 DOI: 10.1016/j.bbamcr.2024.119782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 06/02/2024] [Accepted: 06/04/2024] [Indexed: 06/15/2024]
Abstract
Circadian Locomotor Output Cycles Kaput (CLOCK) is one of the circadian clock genes and is considered to be a fundamental regulatory gene in the circadian rhythm, responsible for mediating several biological processes. Therefore, abnormal expression of CLOCK affects its role in the circadian clock and its more general function as a direct regulator of gene expression. This dysfunction can lead to severe pathological effects, including cancer. To better understand the role of CLOCK in cancer, we compiled this review to describe the biological function of CLOCK, and especially highlighted its function in cancer development, progression, tumor microenvironment, cancer cell metabolism, and drug resistance.
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Affiliation(s)
- Nasot Rashed
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, PR China; NHC Key Laboratory of Carcinogenesis, the Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan 410078, PR China
| | - Wenbin Liu
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, PR China; Department of Pathology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, PR China
| | - Xinran Zhou
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, PR China; NHC Key Laboratory of Carcinogenesis, the Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan 410078, PR China
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Xiangjian Luo
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, PR China; NHC Key Laboratory of Carcinogenesis, the Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan 410078, PR China; Key Laboratory of Biological Nanotechnology of National Health Commission, Central South University, Changsha, Hunan 410078, China.
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la Fleur SE, Blancas-Velazquez AS, Stenvers DJ, Kalsbeek A. Circadian influences on feeding behavior. Neuropharmacology 2024; 256:110007. [PMID: 38795953 DOI: 10.1016/j.neuropharm.2024.110007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/15/2024] [Accepted: 05/19/2024] [Indexed: 05/28/2024]
Abstract
Feeding, like many other biological functions, displays a daily rhythm. This daily rhythmicity is controlled by the circadian timing system of which the central master clock is located in the hypothalamic suprachiasmatic nucleus (SCN). Other brain areas and tissues throughout the body also display rhythmic functions and contain the molecular clock mechanism known as peripheral oscillators. To generate the daily feeding rhythm, the SCN signals to different hypothalamic areas with the lateral hypothalamus, paraventricular nucleus and arcuate nucleus being the most prominent. With respect to the rewarding aspects of feeding behavior, the dopaminergic system is also under circadian influence. However the SCN projects only indirectly to the different reward regions, such as the ventral tegmental area where dopamine neurons are located. In addition, high palatable, high caloric diets have the potential to disturb the normal daily rhythms of physiology and have been shown to alter for example meal patterns. Around a meal several hormones and peptides are released that are also under circadian influence. For example, the release of postprandial insulin and glucagon-like peptide following a meal depend on the time of the day. Finally, we review the effect of deletion of different clock genes on feeding behavior. The most prominent effect on feeding behavior has been observed in Clock mutants, whereas deletion of Bmal1 and Per1/2 only disrupts the day-night rhythm, but not overall intake. Data presented here focus on the rodent literature as only limited data are available on the mechanisms underlying daily rhythms in human eating behavior.
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Affiliation(s)
- Susanne E la Fleur
- Amsterdam UMC, University of Amsterdam, Laboratory of Endocrinology, Department of Laboratory Medicine, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Neuroscience, Cellular and Molecular Mechanisms, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, the Netherlands.
| | - Aurea S Blancas-Velazquez
- Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dirk Jan Stenvers
- Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, the Netherlands; Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
| | - Andries Kalsbeek
- Amsterdam UMC, University of Amsterdam, Laboratory of Endocrinology, Department of Laboratory Medicine, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Neuroscience, Cellular and Molecular Mechanisms, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, the Netherlands; Amsterdam UMC, University of Amsterdam, Department of Endocrinology and Metabolism, Meibergdreef 9, Amsterdam, the Netherlands; Netherlands Institute for Neuroscience (NIN), an Institute of the Royal Netherlands Academy of Arts and Sciences (KNAW), Meibergdreef 47, 1105 BA, Amsterdam, the Netherlands
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3
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Yang S, Ren X, Liu J, Lei Y, Li M, Wang F, Cheng S, Ying J, Ding J, Chen X. Knockdown of the Clock gene in the liver aggravates MASLD in mice via inhibiting lipophagy. Mol Cell Biochem 2024:10.1007/s11010-024-05109-7. [PMID: 39276171 DOI: 10.1007/s11010-024-05109-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 08/27/2024] [Indexed: 09/16/2024]
Abstract
The increased global prevalence of metabolic dysfunction-associated steatohepatitis (MASLD) has been closely associated with chronic disorders of the circadian clock. Herein, we investigate the role of Clock, a core circadian gene, in the pathogenesis of MASLD. Wild-type (WT) and liver-specific Clock knockdown (Clock-KD) mice were fed a Western diet for 20 weeks to induce MASLD. A cellular MASLD model was established by treating AML12 cells with free fatty acids and the effects of Clock knockdown were examined following transfection with Clock siRNA. Increased lipid deposition and more severe steatohepatitis and fibrosis were observed in the livers of Western diet-fed but not normal chow diet-fed Clock-KD mice after 20 weeks compared to WT mice. Moreover, the Clock gene was found to be significantly downregulated in WT MASLD mice. The Clock gene was shown to regulate the expression of lipophagy-related proteins (LC3B, P62, RAB7, and PLIN2) in vivo and in vitro. Knockdown of Clock was found to inhibit lipophagy resulting in increased accumulation of lipid droplets in the mouse liver and AML12 cells. Interestingly, the CLOCK protein was shown to interact with P62. However, knockdown of the Clock gene did not promote transcription of the P62 gene but suppressed degradation of the P62 protein during lipophagy in AML12 cells. The hepatic Clock gene regulates lipophagy and affects lipid droplet deposition in liver cells, and thus plays a critical role in the development of MASLD induced by a Western diet.
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Affiliation(s)
- Shuhong Yang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, People's Republic of China.
- NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, 610041, Sichuan, China.
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Xinxin Ren
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, People's Republic of China
| | - Jia Liu
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, People's Republic of China
| | - Yan Lei
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, People's Republic of China
| | - Minqian Li
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, People's Republic of China
| | - Fang Wang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050, People's Republic of China
| | - Shuting Cheng
- NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Junjie Ying
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jie Ding
- The Second Hospital of Lanzhou University, Lanzhou University, Lanzhou, 730050, China
| | - Xiaohui Chen
- Gansu Province Maternity and Child Health Hospital (Gansu Province Central Hospital), Lanzhou, 730050, China
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Qi D, Huang D, Ba M, Xuan S, Si H, Lu D, Pei X, Zhang W, Huang S, Li Z. Long-term high fructose intake reprograms the circadian transcriptome and disrupts homeostasis in mouse extra-orbital lacrimal glands. Exp Eye Res 2024; 246:110008. [PMID: 39025460 DOI: 10.1016/j.exer.2024.110008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 07/03/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
This study aims to explore the effects of long-term high fructose intake (LHFI) on the structure, functionality, and physiological homeostasis of mouse extra-orbital lacrimal glands (ELGs), a critical component of ocular health. Our findings reveal significant reprogramming of the circadian transcriptome in ELGs following LHFI, alongside the activation of specific inflammatory pathways, as well as metabolic and neural pathways. Notably, LHFI resulted in increased inflammatory infiltration, enhanced lipid deposition, and reduced nerve fiber density in ELGs compared to controls. Functional assessments indicated a marked reduction in lacrimal secretion following cholinergic stimulation in LHFI-treated mice, suggesting impaired gland function. Overall, our results suggest that LHFI disrupts lacrimal gland homeostasis, potentially leading to dry eye disease by altering its structure and secretory function. These insights underscore the profound impact of dietary choices on ocular health and highlight the need for strategies to mitigate these risks.
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Affiliation(s)
- Di Qi
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Duliurui Huang
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Mengru Ba
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Shuting Xuan
- Department of Ophthalmology, Henan University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Hongli Si
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Dingli Lu
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Xiaoting Pei
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Wenxiao Zhang
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, 450000, China
| | - Shenzhen Huang
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Zhijie Li
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China.
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Malik DM, Rhoades SD, Zhang SL, Sengupta A, Barber A, Haynes P, Arnadottir ES, Pack A, Kibbey RG, Sehgal A, Weljie AM. Glucose Challenge Uncovers Temporal Fungibility of Metabolic Homeostasis over a day:night cycle. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.30.564837. [PMID: 37961230 PMCID: PMC10634956 DOI: 10.1101/2023.10.30.564837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Rhythmicity is a cornerstone of behavioral and biological processes, especially metabolism, yet the mechanisms behind metabolite cycling remain elusive. This study uncovers a robust oscillation in key metabolite pathways downstream of glucose in humans. A purpose-built 13 C 6 -glucose isotope tracing platform was used to sample Drosophila every 4h and probe these pathways, revealing a striking peak in biosynthesis shortly after lights-on in wild-type flies. A hyperactive mutant ( fumin ) demonstrates increased Krebs cycle labelling and dawn-specific glycolysis labelling. Surprisingly, neither underlying feeding rhythms nor the presence of food availability explain the rhythmicity of glucose processing across genotypes, suggesting a robust internal mechanism for metabolic control of glucose processing. These results align with clinical data highlighting detrimental effects of mistimed energy intake. Our approach offers a unique insight into the dynamic range of daily metabolic processing and provides a mechanistic foundation for exploring circadian metabolic homeostasis in disease contexts.
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Affiliation(s)
- Dania M. Malik
- Pharmacology Graduate Group, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- These authors contributed equally
| | - Seth D. Rhoades
- Pharmacology Graduate Group, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Fulgens Consulting, LLC, Cambridge, Massachusetts 02142, USA
- These authors contributed equally
| | - Shirley L. Zhang
- Chronobiology and Sleep Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Howard Hughes Medical Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia 30322, USA
| | - Arjun Sengupta
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Annika Barber
- Chronobiology and Sleep Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Howard Hughes Medical Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08854, USA
| | - Paula Haynes
- Chronobiology and Sleep Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Howard Hughes Medical Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Erna Sif Arnadottir
- Division of Sleep Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Center for Sleep and Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Allan Pack
- Division of Sleep Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Center for Sleep and Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Richard G. Kibbey
- Department of Internal Medicine, Department of Cellular & Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA
| | - Amita Sehgal
- Chronobiology and Sleep Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Howard Hughes Medical Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Aalim M. Weljie
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Chronobiology and Sleep Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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6
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Ribas-Latre A, Fernández-Veledo S, Vendrell J. Time-restricted eating, the clock ticking behind the scenes. Front Pharmacol 2024; 15:1428601. [PMID: 39175542 PMCID: PMC11338815 DOI: 10.3389/fphar.2024.1428601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/22/2024] [Indexed: 08/24/2024] Open
Abstract
Introduction Maintaining metabolic balance relies on accumulating nutrients during feeding periods and their subsequent release during fasting. In obesity and metabolic disorders, strategies aimed at reducing food intake while simulating fasting have garnered significant attention for weight loss. Caloric restriction (CR) diets and intermittent fasting (IF) interventions have emerged as effective approaches to improving cardiometabolic health. Although the comparative metabolic benefits of CR versus IF remain inconclusive, this review focuses on various forms of IF, particularly time-restricted eating (TRE). Methods This study employs a narrative review methodology, systematically collecting, synthesizing, and interpreting the existing literature on TRE and its metabolic effects. A comprehensive and unbiased search of relevant databases was conducted to identify pertinent studies, including pre-clinical animal studies and clinical trials in humans. Keywords such as "Obesity," "Intermittent Fasting," "Time-restricted eating," "Chronotype," and "Circadian rhythms" guided the search. The selected studies were critically appraised based on predefined inclusion and exclusion criteria, allowing for a thorough exploration and synthesis of current knowledge. Results This article synthesizes pre-clinical and clinical studies on TRE and its metabolic effects, providing a comprehensive overview of the current knowledge and identifying gaps for future research. It explores the metabolic outcomes of recent clinical trials employing different TRE protocols in individuals with overweight, obesity, or type II diabetes, emphasizing the significance of individual chronotype, which is often overlooked in practice. In contrast to human studies, animal models underscore the role of the circadian clock in mitigating metabolic disturbances induced by obesity through time-restricted feeding (TRF) interventions. Consequently, we examine pre-clinical evidence supporting the interplay between the circadian clock and TRF interventions. Additionally, we provide insights into the role of the microbiota, which TRE can modulate and its influence on circadian rhythms.
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Affiliation(s)
- Aleix Ribas-Latre
- Institut d’Investigació Sanitària Pere Virgili (IISPV), Hospital Universitari de Tarragona, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM)-Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Departament de Medicina i Cirugia, Universitat Rovira i Virgili (URV), Tarragona, Spain
| | - Sonia Fernández-Veledo
- Institut d’Investigació Sanitària Pere Virgili (IISPV), Hospital Universitari de Tarragona, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM)-Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Departament de Medicina i Cirugia, Universitat Rovira i Virgili (URV), Tarragona, Spain
| | - Joan Vendrell
- Institut d’Investigació Sanitària Pere Virgili (IISPV), Hospital Universitari de Tarragona, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM)-Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Departament de Medicina i Cirugia, Universitat Rovira i Virgili (URV), Tarragona, Spain
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Guan D, Chen Y, Liu P, Sabo A. Human genetic variation determines 24-hour rhythmic gene expression and disease risk. RESEARCH SQUARE 2024:rs.3.rs-4790200. [PMID: 39149455 PMCID: PMC11326361 DOI: 10.21203/rs.3.rs-4790200/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
24-hour biological rhythms are essential to maintain physiological homeostasis. Disruption of these rhythms increases the risks of multiple diseases. The biological rhythms are known to have a genetic basis formed by core clock genes, but how individual genetic variation shapes the oscillating transcriptome and contributes to human chronophysiology and disease risk is largely unknown. Here, we mapped interactions between temporal gene expression and genotype to identify quantitative trait loci (QTLs) contributing to rhythmic gene expression. These newly identified QTLs were termed as rhythmic QTLs (rhyQTLs), which determine previously unappreciated rhythmic genes in human subpopulations with specific genotypes. Functionally, rhyQTLs and their associated rhythmic genes contribute extensively to essential chronophysiological processes, including bile acid and lipid metabolism. The identification of rhyQTLs sheds light on the genetic mechanisms of gene rhythmicity, offers mechanistic insights into variations in human disease risk, and enables precision chronotherapeutic approaches for patients.
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8
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Farahmand F, Sidikpramana M, Gomez AR, Rivera LJ, Trzeciak JR, Sharif S, Tang Q, Leinninger GM, Güler AD, Steele AD. Dopamine production in neurotensin receptor 1 neurons is required for diet-induced obesity and increased day eating on a high-fat diet. Obesity (Silver Spring) 2024; 32:1448-1452. [PMID: 38979671 PMCID: PMC11269025 DOI: 10.1002/oby.24066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/17/2024] [Accepted: 04/30/2024] [Indexed: 07/10/2024]
Abstract
OBJECTIVE This study aimed to determine a dopaminergic circuit required for diet-induced obesity in mice. METHODS We created conditional deletion mutants for tyrosine hydroxylase (TH) using neurotensin receptor 1 (Ntsr1) Cre and other Cre drivers and measured feeding and body weight on standard and high-fat diets. We then used an adeno-associated virus to selectively restore TH to the ventral tegmental area (VTA) Ntsr1 neurons in conditional knockout (cKO) mice. RESULTS Mice with cKO of Th using Vglut2-Cre, Cck-Cre, Calb1-Cre, and Bdnf-Cre were susceptible to obesity on a high-fat diet; however, Ntsr1-Cre Th cKO mice resisted weight gain on a high-fat diet and did not experience an increase in day eating unlike their wild-type littermate controls. Restoration of TH to the VTA Ntsr1 neurons of the Ntsr1-Cre Th cKO mice using an adeno-associated virus resulted in an increase in weight gain and day eating on a high-fat diet. CONCLUSIONS Ntsr1-Cre Th cKO mice failed to increase day eating on a high-fat diet, offering a possible explanation for their resistance to diet-induced obesity. These results implicate VTA Ntsr1 dopamine neurons as promoting out-of-phase feeding behavior on a high-fat diet that could be an important contributor to diet-induced obesity in humans.
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Affiliation(s)
- Firozeh Farahmand
- Department of Biological Sciences, California State Polytechnic University Pomona; Pomona, CA; USA
| | - Michael Sidikpramana
- Department of Biological Sciences, California State Polytechnic University Pomona; Pomona, CA; USA
| | - Alyssa R. Gomez
- Department of Biological Sciences, California State Polytechnic University Pomona; Pomona, CA; USA
| | - Luis J. Rivera
- Department of Biological Sciences, California State Polytechnic University Pomona; Pomona, CA; USA
| | - Jacqueline R. Trzeciak
- Department of Biological Sciences, California State Polytechnic University Pomona; Pomona, CA; USA
| | - Sarah Sharif
- Department of Biological Sciences, California State Polytechnic University Pomona; Pomona, CA; USA
| | - Qijun Tang
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Gina M. Leinninger
- Department of Physiology, Michigan State University, East Lansing, MI 48114, United States
| | - Ali D. Güler
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
| | - Andrew D. Steele
- Department of Biological Sciences, California State Polytechnic University Pomona; Pomona, CA; USA
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9
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McHill AW, Butler MP. Eating Around the Clock: Circadian Rhythms of Eating and Metabolism. Annu Rev Nutr 2024; 44:25-50. [PMID: 38848598 DOI: 10.1146/annurev-nutr-062122-014528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
The time of day that we eat is increasingly recognized as contributing as importantly to overall health as the amount or quality of the food we eat. The endogenous circadian clock has evolved to promote intake at optimal times when an organism is intended to be awake and active, but electric lights and abundant food allow eating around the clock with deleterious health outcomes. In this review, we highlight literature pertaining to the effects of food timing on health, beginning with animal models and then translation into human experiments. We emphasize the pitfalls and opportunities that technological advances bring in bettering understanding of eating behaviors and their association with health and disease. There is great promise for restricting the timing of food intake both in clinical interventions and in public health campaigns for improving health via nonpharmacological therapies.
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Affiliation(s)
- Andrew W McHill
- Sleep, Chronobiology, and Health Laboratory, School of Nursing, Oregon Health & Science University, Portland, Oregon, USA
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, Oregon, USA
| | - Matthew P Butler
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon, USA;
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, Oregon, USA
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10
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Shen X, Yang H, Yang Y, Zhu X, Sun Q. The cellular and molecular targets of natural products against metabolic disorders: a translational approach to reach the bedside. MedComm (Beijing) 2024; 5:e664. [PMID: 39049964 PMCID: PMC11266934 DOI: 10.1002/mco2.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 06/29/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024] Open
Abstract
Metabolic disorders, including obesity, dyslipidemia, diabetes, nonalcoholic fatty liver disease, and metabolic syndrome, are characterized by insulin resistance, abnormalities in circulating cholesterol and lipid profiles, and hypertension. The most common pathophysiologies of metabolic disorders are glucose/lipid metabolism dysregulation, insulin resistance, inflammatory response, and oxidative stress. Although several agents have been approved for the treatment of metabolic disorders, there is still a strong demand for more efficacious drugs with less side effects. Natural products have been critical sources of drug research and discovery for decades. However, the usefulness of bioactive natural products is often limited by incomplete understanding of their direct cellular targets. In this review, we highlight the current understanding of the established and emerging molecular mechanisms of metabolic disorders. We further summarize the therapeutic effects and underlying mechanisms of natural products on metabolic disorders, with highlights on their direct cellular targets, which are mainly implicated in the regulation of glucose/lipid metabolism, insulin resistance, metabolic inflammation, and oxidative stress. Finally, this review also covers the clinical studies of natural products in metabolic disorders. These progresses are expected to facilitate the application of these natural products and their derivatives in the development of novel drugs against metabolic disorders.
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Affiliation(s)
- Xiaofei Shen
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan ProvinceHospital of Chengdu University of Traditional Chinese MedicineChengdu University of Traditional Chinese MedicineChengduChina
| | - Hongling Yang
- Department of Nephrology and Institute of NephrologySichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Sichuan Clinical Research Centre for Kidney DiseasesChengduChina
| | - Yang Yang
- Department of Respiratory and Critical Care MedicineSichuan Provincial People's HospitalUniversity of Electronic Science and TechnologyChengduChina
| | - Xianjun Zhu
- The Sichuan Provincial Key Laboratory for Human Disease Gene Study, Center for Medical GeneticsSichuan Provincial People's HospitalUniversity of Electronic Science and TechnologyChengduChina
| | - Qingxiang Sun
- Department of Respiratory and Critical Care MedicineSichuan Provincial People's HospitalUniversity of Electronic Science and TechnologyChengduChina
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Liu H, Qu N, Gonzalez NV, Palma MA, Chen H, Xiong J, Choubey A, Li Y, Li X, Yu M, Liu H, Tu L, Zhang N, Yin N, Conde KM, Wang M, Bean JC, Han J, Scarcelli NA, Yang Y, Saito K, Cui H, Tong Q, Sun Z, Wang C, Cai X, Lu L, He Y, Xu Y. A Light-Responsive Neural Circuit Suppresses Feeding. J Neurosci 2024; 44:e2192232024. [PMID: 38897723 PMCID: PMC11270527 DOI: 10.1523/jneurosci.2192-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
Light plays an essential role in a variety of physiological processes, including vision, mood, and glucose homeostasis. However, the intricate relationship between light and an animal's feeding behavior has remained elusive. Here, we found that light exposure suppresses food intake, whereas darkness amplifies it in male mice. Interestingly, this phenomenon extends its reach to diurnal male Nile grass rats and healthy humans. We further show that lateral habenula (LHb) neurons in mice respond to light exposure, which in turn activates 5-HT neurons in the dorsal Raphe nucleus (DRN). Activation of the LHb→5-HTDRN circuit in mice blunts darkness-induced hyperphagia, while inhibition of the circuit prevents light-induced anorexia. Together, we discovered a light-responsive neural circuit that relays the environmental light signals to regulate feeding behavior in mice.
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Affiliation(s)
- Hailan Liu
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030 .
| | - Na Qu
- Research Center for Mental Health and Neuroscience, Wuhan Mental Health Center, Wuhan 430012, China .
- Wuhan Hospital for Psychotherapy, Wuhan 430012, China
- Affiliated Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430012, China
- Research Center for Psychological and Health Sciences, China University of Geosciences, Wuhan 430012, China
- Affiliated Wuhan Mental Health Center, Jianghan University, Wuhan 430012, China
| | | | - Marco A Palma
- Human Behavior Laboratory, Texas A&M University, College Station, Texas 77843
| | - Huamin Chen
- Research Center for Mental Health and Neuroscience, Wuhan Mental Health Center, Wuhan 430012, China
- Wuhan Hospital for Psychotherapy, Wuhan 430012, China
- Affiliated Wuhan Mental Health Center, Jianghan University, Wuhan 430012, China
| | - Jiani Xiong
- Research Center for Mental Health and Neuroscience, Wuhan Mental Health Center, Wuhan 430012, China
- Wuhan Hospital for Psychotherapy, Wuhan 430012, China
- Research Center for Psychological and Health Sciences, China University of Geosciences, Wuhan 430012, China
| | - Abhinav Choubey
- Department of Medicine-Endocrinology, Baylor College of Medicine, Houston, Texas 77030
| | - Yongxiang Li
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Xin Li
- Department of Medicine-Endocrinology, Baylor College of Medicine, Houston, Texas 77030
| | - Meng Yu
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Hesong Liu
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Longlong Tu
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Nan Zhang
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Na Yin
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Kristine Marie Conde
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Mengjie Wang
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Jonathan Carter Bean
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Junying Han
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Nikolas Anthony Scarcelli
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Yongjie Yang
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Kenji Saito
- Department of Pharmacology and Neuroscience, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242
| | - Huxing Cui
- Department of Pharmacology and Neuroscience, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242
- Iowa Neuroscience Institute, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242
- F.O.E. Diabetes Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242
| | - Qingchun Tong
- Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, Texas 77030
| | - Zheng Sun
- Department of Medicine-Endocrinology, Baylor College of Medicine, Houston, Texas 77030
| | - Chunmei Wang
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Xing Cai
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Li Lu
- Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Yang He
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030
| | - Yong Xu
- Department of Pediatrics, Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas 77030 .
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030
- Section of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, Texas 77030
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12
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Schrader LA, Ronnekleiv-Kelly SM, Hogenesch JB, Bradfield CA, Malecki KM. Circadian disruption, clock genes, and metabolic health. J Clin Invest 2024; 134:e170998. [PMID: 39007272 PMCID: PMC11245155 DOI: 10.1172/jci170998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Abstract
A growing body of research has identified circadian-rhythm disruption as a risk factor for metabolic health. However, the underlying biological basis remains complex, and complete molecular mechanisms are unknown. There is emerging evidence from animal and human research to suggest that the expression of core circadian genes, such as circadian locomotor output cycles kaput gene (CLOCK), brain and muscle ARNT-Like 1 gene (BMAL1), period (PER), and cyptochrome (CRY), and the consequent expression of hundreds of circadian output genes are integral to the regulation of cellular metabolism. These circadian mechanisms represent potential pathophysiological pathways linking circadian disruption to adverse metabolic health outcomes, including obesity, metabolic syndrome, and type 2 diabetes. Here, we aim to summarize select evidence from in vivo animal models and compare these results with epidemiologic research findings to advance understanding of existing foundational evidence and potential mechanistic links between circadian disruption and altered clock gene expression contributions to metabolic health-related pathologies. Findings have important implications for the treatment, prevention, and control of metabolic pathologies underlying leading causes of death and disability, including diabetes, cardiovascular disease, and cancer.
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Affiliation(s)
| | - Sean M Ronnekleiv-Kelly
- Molecular and Environmental Toxicology Center and
- Department of Surgery, Division of Surgical Oncology, School of Medicine and Public Health, University of Wisconsin, Madison Wisconsin, USA
| | - John B Hogenesch
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | | | - Kristen Mc Malecki
- Molecular and Environmental Toxicology Center and
- Department of Population Health Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, USA
- Division of Environmental and Occupational Health Sciences, University of Illinois Chicago, Chicago, Illinois, USA
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13
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Geronikolou SA, Pavlopoulou A, Uça Apaydin M, Albanopoulos K, Cokkinos DV, Chrousos G. Non-Hereditary Obesity Type Networks and New Drug Targets: An In Silico Approach. Int J Mol Sci 2024; 25:7684. [PMID: 39062927 PMCID: PMC11277295 DOI: 10.3390/ijms25147684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
Obesity, a chronic, preventable disease, has significant comorbidities that are associated with a great human and financial cost for society. The aim of the present work is to reconstruct the interactomes of non-hereditary obesity to highlight recent advances of its pathogenesis, and discover potential therapeutic targets. Obesity and biological-clock-related genes and/or gene products were extracted from the biomedical literature databases PubMed, GeneCards and OMIM. Their interactions were investigated using STRING v11.0 (a database of known and predicted physical and indirect associations among genes/proteins), and a high confidence interaction score of >0.7 was set. We also applied virtual screening to discover natural compounds targeting obesity- and circadian-clock-associated proteins. Two updated and comprehensive interactomes, the (a) stress- and (b) inflammation-induced obesidomes involving 85 and 93 gene/gene products of known and/or predicted interactions with an average node degree of 9.41 and 10.8, respectively, were produced. Moreover, 15 of these were common between the two non-hereditary entities, namely, ADIPOQ, ADRB2/3, CCK, CRH, CXCL8, FOS, GCG, GNRH1, IGF1, INS, LEP, MC4R, NPY and POMC, while phelligridin E, a natural product, may function as a potent FOX1-DBD interaction blocker. Molecular networks may contribute to the understanding of the integrated regulation of energy balance/obesity pathogenesis and may associate chronopharmacology schemes with natural products.
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Affiliation(s)
- Styliani A. Geronikolou
- Clinical, Translational Research and Experimental Surgery Centre, Biomedical Research Foundation of the Academy of Athens, 4, Soranou Ephessiou Str., 11527 Athens, Greece; (D.V.C.); (G.C.)
- University Research Institute of Maternal and Child Health and Precision Medicine, National and Kapodistrian University of Athens Medical School, Levadias 8, 11527 Athens, Greece
| | - Athanasia Pavlopoulou
- Izmir Biomedicine and Genome Center (IBG), 35340 Izmir, Türkiye; (A.P.)
- Izmir International Biomedicine and Genome Institute, Genomics and Molecular Biotechnology Department, Dokuz Eylül University, 35340 Izmir, Türkiye
| | - Merve Uça Apaydin
- Izmir Biomedicine and Genome Center (IBG), 35340 Izmir, Türkiye; (A.P.)
- Izmir International Biomedicine and Genome Institute, Genomics and Molecular Biotechnology Department, Dokuz Eylül University, 35340 Izmir, Türkiye
| | | | - Dennis V. Cokkinos
- Clinical, Translational Research and Experimental Surgery Centre, Biomedical Research Foundation of the Academy of Athens, 4, Soranou Ephessiou Str., 11527 Athens, Greece; (D.V.C.); (G.C.)
| | - George Chrousos
- Clinical, Translational Research and Experimental Surgery Centre, Biomedical Research Foundation of the Academy of Athens, 4, Soranou Ephessiou Str., 11527 Athens, Greece; (D.V.C.); (G.C.)
- University Research Institute of Maternal and Child Health and Precision Medicine, National and Kapodistrian University of Athens Medical School, Levadias 8, 11527 Athens, Greece
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14
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Wang R, Liao Y, Deng Y, Shuang R. Unraveling the Health Benefits and Mechanisms of Time-Restricted Feeding: Beyond Caloric Restriction. Nutr Rev 2024:nuae074. [PMID: 38954563 DOI: 10.1093/nutrit/nuae074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024] Open
Abstract
Time-restricted feeding (TRF) is a lifestyle intervention that aims to maintain a consistent daily cycle of feeding and fasting to support robust circadian rhythms. Recently, it has gained scientific, medical, and public attention due to its potential to enhance body composition, extend lifespan, and improve overall health, as well as induce autophagy and alleviate symptoms of diseases like cardiovascular diseases, type 2 diabetes, neurodegenerative diseases, cancer, and ischemic injury. However, there is still considerable debate on the primary factors that contribute to the health benefits of TRF. Despite not imposing strict limitations on calorie intake, TRF consistently led to reductions in calorie intake. Therefore, while some studies suggest that the health benefits of TRF are primarily due to caloric restriction (CR), others argue that the key advantages of TRF arise not only from CR but also from factors like the duration of fasting, the timing of the feeding period, and alignment with circadian rhythms. To elucidate the roles and mechanisms of TRF beyond CR, this review incorporates TRF studies that did not use CR, as well as TRF studies with equivalent energy intake to CR, which addresses the previous lack of comprehensive research on TRF without CR and provides a framework for future research directions.
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Affiliation(s)
- Ruhan Wang
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 43000, China
| | - Yuxiao Liao
- Department of Nutrition and Food Hygiene and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 43000, China
| | - Yan Deng
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 43000, China
| | - Rong Shuang
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 43000, China
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15
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Zeng H, Yang X, Liao K, Zuo X, Liang L, He D, Ju R, Wang B, Yuan J. Circadian disruption reduces MUC4 expression via the clock molecule BMAL1 during dry eye development. Exp Mol Med 2024; 56:1655-1666. [PMID: 38956298 PMCID: PMC11297157 DOI: 10.1038/s12276-024-01269-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 03/22/2024] [Accepted: 04/16/2024] [Indexed: 07/04/2024] Open
Abstract
Circadian disruption, as a result of shiftwork, jet lag, and other lifestyle factors, is a common public health problem associated with a wide range of diseases, such as metabolic disorders, neurodegenerative diseases, and cancer. In the present study, we established a chronic jet lag model using a time shift method every 3 days and assessed the effects of circadian disruption on ocular surface homeostasis. Our results indicated that jet lag increased corneal epithelial defects, cell apoptosis, and proinflammatory cytokine expression. However, the volume of tear secretion and the number of conjunctival goblet cells did not significantly change after 30 days of jet lag. Moreover, further analysis of the pathogenic mechanism using RNA sequencing revealed that jet lag caused corneal transmembrane mucin deficiency, specifically MUC4 deficiency. The crucial role of MUC4 in pathogenic progression was demonstrated by the protection of corneal epithelial cells and the inhibition of inflammatory activation following MUC4 replenishment. Unexpectedly, genetic ablation of BMAL1 in mice caused MUC4 deficiency and dry eye disease. The underlying mechanism was revealed in cultured human corneal epithelial cells in vitro, where BMAL1 silencing reduced MUC4 expression, and BMAL1 overexpression increased MUC4 expression. Furthermore, melatonin, a circadian rhythm restorer, had a therapeutic effect on jet lag-induced dry eye by restoring the expression of BMAL1, which upregulated MUC4. Thus, we generated a novel dry eye mouse model induced by circadian disruption, elucidated the underlying mechanism, and identified a potential clinical treatment.
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Affiliation(s)
- Hao Zeng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Xue Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Kai Liao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Xin Zuo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Lihong Liang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Dalian He
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Rong Ju
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Bowen Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China.
| | - Jin Yuan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China.
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16
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Windred DP, Burns AC, Rutter MK, Ching Yeung CH, Lane JM, Xiao Q, Saxena R, Cain SW, Phillips AJ. Personal light exposure patterns and incidence of type 2 diabetes: analysis of 13 million hours of light sensor data and 670,000 person-years of prospective observation. THE LANCET REGIONAL HEALTH. EUROPE 2024; 42:100943. [PMID: 39070751 PMCID: PMC11281921 DOI: 10.1016/j.lanepe.2024.100943] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 07/30/2024]
Abstract
Background Light at night disrupts circadian rhythms, and circadian disruption is a risk factor for type 2 diabetes. Whether personal light exposure predicts diabetes risk has not been demonstrated in a large prospective cohort. We therefore assessed whether personal light exposure patterns predicted risk of incident type 2 diabetes in UK Biobank participants, using ∼13 million hours of light sensor data. Methods Participants (N = 84,790, age (M ± SD) = 62.3 ± 7.9 years, 58% female) wore light sensors for one week, recording day and night light exposure. Circadian amplitude and phase were modeled from weekly light data. Incident type 2 diabetes was recorded (1997 cases; 7.9 ± 1.2 years follow-up; excluding diabetes cases prior to light-tracking). Risk of incident type 2 diabetes was assessed as a function of day and night light, circadian phase, and circadian amplitude, adjusting for age, sex, ethnicity, socioeconomic and lifestyle factors, and polygenic risk. Findings Compared to people with dark nights (0-50th percentiles), diabetes risk was incrementally higher across brighter night light exposure percentiles (50-70th: multivariable-adjusted HR = 1.29 [1.14-1.46]; 70-90th: 1.39 [1.24-1.57]; and 90-100th: 1.53 [1.32-1.77]). Diabetes risk was higher in people with lower modeled circadian amplitude (aHR = 1.07 [1.03-1.10] per SD), and with early or late circadian phase (aHR range: 1.06-1.26). Night light and polygenic risk independently predicted higher diabetes risk. The difference in diabetes risk between people with bright and dark nights was similar to the difference between people with low and moderate genetic risk. Interpretation Type 2 diabetes risk was higher in people exposed to brighter night light, and in people exposed to light patterns that may disrupt circadian rhythms. Avoidance of light at night could be a simple and cost-effective recommendation that mitigates risk of diabetes, even in those with high genetic risk. Funding Australian Government Research Training Program.
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Affiliation(s)
- Daniel P. Windred
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - Angus C. Burns
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Martin K. Rutter
- Centre for Biological Timing, Division of Endocrinology, Diabetes & Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
- Diabetes, Endocrinology and Metabolism Centre, NIHR Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester, UK
| | - Chris Ho Ching Yeung
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Jacqueline M. Lane
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Qian Xiao
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, United States
- Center for Spatial-temporal Modeling for Applications in Population Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Richa Saxena
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute, Cambridge, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sean W. Cain
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
- Flinders Health and Medical Research Institute (Sleep Health), Flinders University, Bedford Park, SA, Australia
| | - Andrew J.K. Phillips
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
- Flinders Health and Medical Research Institute (Sleep Health), Flinders University, Bedford Park, SA, Australia
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17
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Berbegal-Sáez P, Gallego-Landin I, Macía J, Alegre-Zurano L, Castro-Zavala A, Welz PS, Benitah SA, Valverde O. Lack of Bmal1 leads to changes in rhythmicity and impairs motivation towards natural stimuli. Open Biol 2024; 14:240051. [PMID: 39045857 PMCID: PMC11267724 DOI: 10.1098/rsob.240051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/17/2024] [Accepted: 05/21/2024] [Indexed: 07/25/2024] Open
Abstract
Maintaining proper circadian rhythms is essential for coordinating biological functions in mammals. This study investigates the effects of daily arrhythmicity using Bmal1-knockout (KO) mice as a model, aiming to understand behavioural and motivational implications. By employing a new mathematical analysis based on entropy divergence, we identified disrupted intricate activity patterns in mice derived by the complete absence of BMAL1 and quantified the difference regarding the activity oscillation's complexity. Changes in locomotor activity coincided with disturbances in circadian gene expression patterns. Additionally, we found a dysregulated gene expression profile particularly in brain nuclei like the ventral striatum, impacting genes related to reward and motivation. Further investigation revealed that arrhythmic mice exhibited heightened motivation for food and water rewards, indicating a link between circadian disruptions and the reward system. This research sheds light on how circadian clock alterations impact the gene expression regulating the reward system and how this, in turn, can lead to altered seeking behaviour and motivation for natural rewards. In summary, the present study contributes to our understanding of how reward processing is under the regulation of circadian clock machinery.
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Affiliation(s)
- Paula Berbegal-Sáez
- Department of Medicine and Life Sciences (MELIS), Neurobiology of Behaviour Research Group (GReNeC-NeuroBio), Universitat Pompeu Fabra, Barcelona, Spain
| | - Ines Gallego-Landin
- Department of Medicine and Life Sciences (MELIS), Neurobiology of Behaviour Research Group (GReNeC-NeuroBio), Universitat Pompeu Fabra, Barcelona, Spain
| | - Javier Macía
- Department of Medicine and Life Sciences (MELIS), Synthetic Biology for Biomedical Applications, Universitat Pompeu Fabra, Barcelona, Spain
| | - Laia Alegre-Zurano
- Department of Medicine and Life Sciences (MELIS), Neurobiology of Behaviour Research Group (GReNeC-NeuroBio), Universitat Pompeu Fabra, Barcelona, Spain
| | - Adriana Castro-Zavala
- Department of Medicine and Life Sciences (MELIS), Neurobiology of Behaviour Research Group (GReNeC-NeuroBio), Universitat Pompeu Fabra, Barcelona, Spain
| | - Patrick-Simon Welz
- Program in Cancer Research, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
| | - Salvador A. Benitah
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, Barcelon08028, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Olga Valverde
- Department of Medicine and Life Sciences (MELIS), Neurobiology of Behaviour Research Group (GReNeC-NeuroBio), Universitat Pompeu Fabra, Barcelona, Spain
- Neuroscience Research Program, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
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18
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Figueroa-Toledo AM, Gutiérrez-Pino J, Carriel-Nesvara A, Marchese-Bittencourt M, Zbinden-Foncea H, Castro-Sepúlveda M. BMAL1 and CLOCK proteins exhibit differential association with mitochondrial dynamics, protein synthesis pathways and muscle strength in human muscle. J Physiol 2024. [PMID: 38922907 DOI: 10.1113/jp285955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Murine models lacking CLOCK/BMAL1 proteins in skeletal muscle (SkM) present muscle deterioration and mitochondria abnormalities. It is unclear whether humans with lower levels of these proteins in the SkM have similar alterations. Here we evaluated the association between BMAL1 and CLOCK protein mass with mitochondrial dynamics parameters and molecular and functional SkM quality markers in males. SkM biopsies were taken from the vastus lateralis of 16 male (non-athletes, non-obese and non-diabetic) subjects (8-9 a.m.). The morphology of mitochondria and their interaction with the sarcoplasmic reticulum (mitochondria-SR) were determined using transmission electron microscopy images. Additionally, protein abundance of the OXPHOS complex, mitochondria fusion/fission regulators, mitophagy and signalling proteins related to muscle protein synthesis were measured. To evaluate the quality of SkM, the cross-sectional area and maximal SkM strength were also measured. The results showed that BMAL1 protein mass was positively associated with mitochondria-SR distance, mitochondria size, mitochondria cristae density and mTOR protein mass. On the other hand, CLOCK protein mass was negatively associated with mitochondria-SR interaction, but positively associated with mitochondria complex III, OPA1 and DRP1 protein mass. Furthermore, CLOCK protein mass was positively associated with the protein synthesis signalling pathway (total mTOR, AKT and P70S6K protein mass) and SkM strength. These findings suggest that the BMAL1 and CLOCK proteins play different roles in regulating mitochondrial dynamics and SkM function in males, and that modulation of these proteins could be a potential therapeutic target for treating muscle diseases. KEY POINTS: In murine models, reductions in BMAL1 and CLOCK proteins lead to changes in mitochondria biology and a decline in muscle function. However, this association has not been explored in humans. We found that in human skeletal muscle, a decrease in BMAL1 protein mass is linked to smaller intermyofibrillar mitochondria, lower mitochondria cristae density, higher interaction between mitochondria and sarcoplasmic reticulum, and reduced mTOR protein mass. Additionally, we found that a decrease in CLOCK protein mass is associated with a higher interaction between mitochondria and sarcoplasmic reticulum, lower protein mass of OPA1 and DRP1, which regulates mitochondria fusion and fission, lower protein synthesis signalling pathway (mTOR, AKT and P70S6K protein mass), and decreased skeletal muscle strength. According to our findings in humans, which are supported by previous studies in animals, the mitochondrial dynamics and skeletal muscle function could be regulated differently by BMAL1 and CLOCK proteins. As a result, targeting the modulation of these proteins could be a potential therapeutic approach for treating muscle diseases and metabolic disorders related to muscle.
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Affiliation(s)
- A M Figueroa-Toledo
- Laboratorio de Fisiología del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Santiago, Chile
| | - J Gutiérrez-Pino
- Laboratorio de Fisiología del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Santiago, Chile
| | - A Carriel-Nesvara
- Laboratorio de Fisiología del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Santiago, Chile
| | - M Marchese-Bittencourt
- Laboratorio de Fisiología del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Santiago, Chile
| | - H Zbinden-Foncea
- Laboratorio de Fisiología del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Santiago, Chile
| | - M Castro-Sepúlveda
- Laboratorio de Fisiología del Ejercicio y Metabolismo (LABFEM), Escuela de Kinesiología, Facultad de Medicina, Universidad Finis Terrae, Santiago, Chile
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19
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Chuang HH, Lin C, Lee LA, Chang HC, She GJ, Lin YH. Comparing Human-Smartphone Interactions and Actigraphy Measurements for Circadian Rhythm Stability and Adiposity: Algorithm Development and Validation Study. J Med Internet Res 2024; 26:e50149. [PMID: 38838328 PMCID: PMC11187513 DOI: 10.2196/50149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/17/2023] [Accepted: 03/20/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND This study aimed to investigate the relationships between adiposity and circadian rhythm and compare the measurement of circadian rhythm using both actigraphy and a smartphone app that tracks human-smartphone interactions. OBJECTIVE We hypothesized that the app-based measurement may provide more comprehensive information, including light-sensitive melatonin secretion and social rhythm, and have stronger correlations with adiposity indicators. METHODS We enrolled a total of 78 participants (mean age 41.5, SD 9.9 years; 46/78, 59% women) from both an obesity outpatient clinic and a workplace health promotion program. All participants (n=29 with obesity, n=16 overweight, and n=33 controls) were required to wear a wrist actigraphy device and install the Rhythm app for a minimum of 4 weeks, contributing to a total of 2182 person-days of data collection. The Rhythm app estimates sleep and circadian rhythm indicators by tracking human-smartphone interactions, which correspond to actigraphy. We examined the correlations between adiposity indices and sleep and circadian rhythm indicators, including sleep time, chronotype, and regularity of circadian rhythm, while controlling for physical activity level, age, and gender. RESULTS Sleep onset and wake time measurements did not differ significantly between the app and actigraphy; however, wake after sleep onset was longer (13.5, SD 19.5 minutes) with the app, resulting in a longer actigraphy-measured total sleep time (TST) of 20.2 (SD 66.7) minutes. The obesity group had a significantly longer TST with both methods. App-measured circadian rhythm indicators were significantly lower than their actigraphy-measured counterparts. The obesity group had significantly lower interdaily stability (IS) than the control group with both methods. The multivariable-adjusted model revealed a negative correlation between BMI and app-measured IS (P=.007). Body fat percentage (BF%) and visceral adipose tissue area (VAT) showed significant correlations with both app-measured IS and actigraphy-measured IS. The app-measured midpoint of sleep showed a positive correlation with both BF% and VAT. Actigraphy-measured TST exhibited a positive correlation with BMI, VAT, and BF%, while no significant correlation was found between app-measured TST and either BMI, VAT, or BF%. CONCLUSIONS Our findings suggest that IS is strongly correlated with various adiposity indicators. Further exploration of the role of circadian rhythm, particularly measured through human-smartphone interactions, in obesity prevention could be warranted.
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Affiliation(s)
- Hai-Hua Chuang
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan, Taiwan
- Department of Industrial Engineering and Management, National Taipei University of Technology, Taipei, Taiwan
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan
| | - Chen Lin
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan City, Taiwan
| | - Li-Ang Lee
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan
- Department of Otorhinolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou Main Branch, Taoyuan, Taiwan
| | - Hsiang-Chih Chang
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Guan-Jie She
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Yu-Hsuan Lin
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
- Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan
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20
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Li X, Han Z, Li H. Hif3α Plays Key Roles in the Progression of Alzheimer's Disease Caused by Circadian Rhythm Disruption through Regulating the m 6A/KDM3A/TGF-β1 Axis. BIOLOGY 2024; 13:412. [PMID: 38927292 PMCID: PMC11201003 DOI: 10.3390/biology13060412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
Disrupted circadian rhythms are associated with the onset of chronic diseases and impairments, including cancer, diabetes, and hypertension. However, whether circadian disruptions accelerate the progression of Alzheimer's disease and the respective pathway remains unclear. In this study, we constructed animal models using male C57BL/6N and APP/PS1 mice. Irregular illumination during sleeping hours was administered to the mice in our intervention groups to consistently disrupt their circadian rhythms. The impact of the intervention was evaluated through body weight tracking, cerebral index determination, histopathological staining, and biochemical marker analysis. Transcriptomic sequencing identified critical genes, with the data subsequently validated using RNA m6A detection and site analysis. The evaluations revealed that circadian disruptions impaired normal weight gain, liver and kidney functions, neuronal cells, and overall brain function. Transcriptomic sequencing data revealed a trend of elevating expression of Hif3α mRNA in the intervention groups. Further analysis of specific gene sites revealed that m6A methylation of the Hif3α gene at m6A site 3632 primarily drove the observed variations in HIF3A protein expression in our model. Furthermore, the expression of proteins in PC12 cells, N2a cells, and mice brains validated that an increase in HIF3A expression decreased KDM3A and TGF-β1 protein expression. Our study reveals a hitherto unknown pathway through which the disruption of circadian rhythms, by triggering m6A methylation at m6A site 3632 in the Hif3α gene, leads to the initiation and acceleration of AD. These findings provide valuable insights and guidelines for treating AD patients and enhancing caregiving by professionals.
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Affiliation(s)
- Xinrui Li
- Beijing National Day School, Beijing 100062, China;
| | - Zhengkun Han
- Beijing Key Laboratory of Food Processing and Safety in Forest, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China;
| | - Huiying Li
- Beijing Key Laboratory of Food Processing and Safety in Forest, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China;
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21
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Vatier C, Christin-Maitre S. Epigenetic/circadian clocks and PCOS. Hum Reprod 2024; 39:1167-1175. [PMID: 38600622 DOI: 10.1093/humrep/deae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/04/2024] [Indexed: 04/12/2024] Open
Abstract
Polycystic ovary syndrome (PCOS) affects 6-20% of reproductive-aged women. It is associated with increased risks of metabolic syndrome, Type 2 diabetes, cardiovascular diseases, mood disorders, endometrial cancer and non-alcoholic fatty liver disease. Although various susceptibility loci have been identified through genetic studies, they account for ∼10% of PCOS heritability. Therefore, the etiology of PCOS remains unclear. This review explores the role of epigenetic changes and modifications in circadian clock genes as potential contributors to PCOS pathogenesis. Epigenetic alterations, such as DNA methylation, histone modifications, and non-coding RNA changes, have been described in diseases related to PCOS, such as diabetes, cardiovascular diseases, and obesity. Furthermore, several animal models have illustrated a link between prenatal exposure to androgens or anti-Müllerian hormone and PCOS-like phenotypes in subsequent generations, illustrating an epigenetic programming in PCOS. In humans, epigenetic changes have been reported in peripheral blood mononuclear cells (PBMC), adipose tissue, granulosa cells (GC), and liver from women with PCOS. The genome of women with PCOS is globally hypomethylated compared to healthy controls. However, specific hypomethylated or hypermethylated genes have been reported in the different tissues of these women. They are mainly involved in hormonal regulation and inflammatory pathways, as well as lipid and glucose metabolism. Additionally, sleep disorders are present in women with PCOS and disruptions in clock genes' expression patterns have been observed in their PBMC or GCs. While epigenetic changes hold promise as diagnostic biomarkers, the current challenge lies in distinguishing whether these changes are causes or consequences of PCOS. Targeting epigenetic modifications potentially opens avenues for precision medicine in PCOS, including lifestyle interventions and drug therapies. However, data are still lacking in large cohorts of well-characterized PCOS phenotypes. In conclusion, understanding the interplay between genetics, epigenetics, and circadian rhythms may provide valuable insights for early diagnosis and therapeutic strategies in PCOS in the future.
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Affiliation(s)
- Camille Vatier
- Department of Endocrine and Reproductive Medicine, Center of Endocrine Rare Diseases of Growth and Development (CRESCENDO), FIRENDO, Endo-ERN, Hôpital Saint-Antoine, Assistance-Publique-Hôpitaux de Paris, Sorbonne University, Paris, France
- Institut National de la Santé et de la Recherche Medicale (INSERM) UMR 938, Centre de Recherche Saint-Antoine et Institut de Cardio-Métabolisme et Nutrition (ICAN), Paris, France
| | - Sophie Christin-Maitre
- Department of Endocrine and Reproductive Medicine, Center of Endocrine Rare Diseases of Growth and Development (CRESCENDO), FIRENDO, Endo-ERN, Hôpital Saint-Antoine, Assistance-Publique-Hôpitaux de Paris, Sorbonne University, Paris, France
- INSERM UMR U933, Paris, France
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22
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Levine DC, Ptáček LJ, Fu YH. A metabolic perspective to sleep genetics. Curr Opin Neurobiol 2024; 86:102874. [PMID: 38582021 DOI: 10.1016/j.conb.2024.102874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 03/04/2024] [Accepted: 03/14/2024] [Indexed: 04/08/2024]
Abstract
The metabolic signals that regulate sleep and the metabolic functions that occur during sleep are active areas of research. Prior studies have focused on sugars and nucleotides but new genetic evidence suggests novel functions of lipid and amino acid metabolites in sleep. Additional genetic studies of energetic signaling pathways and the circadian clock transcription factor network have increased our understanding of how sleep responds to changes in the metabolic state. This review focuses on key recent insights from genetic experiments in humans and model organisms to improve our understanding of the interrelationship between metabolism and sleep.
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Affiliation(s)
- Daniel C Levine
- Department of Neurology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Louis J Ptáček
- Department of Neurology, University of California San Francisco, San Francisco, CA 94143, USA; Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA; Weill Institute for Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA; Kavli Institute for Fundamental Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA
| | - Ying-Hui Fu
- Department of Neurology, University of California San Francisco, San Francisco, CA 94143, USA; Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA; Weill Institute for Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA; Kavli Institute for Fundamental Neuroscience, University of California San Francisco, San Francisco, CA 94143, USA.
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23
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Yip C, Wyler SC, Liang K, Yamazaki S, Cobb T, Safdar M, Metai A, Merchant W, Wessells R, Rothenfluh A, Lee S, Elmquist J, You YJ. Neuronal E93 is required for adaptation to adult metabolism and behavior. Mol Metab 2024; 84:101939. [PMID: 38621602 PMCID: PMC11053319 DOI: 10.1016/j.molmet.2024.101939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024] Open
Abstract
OBJECTIVE Metamorphosis is a transition from growth to reproduction, through which an animal adopts adult behavior and metabolism. Yet the neural mechanisms underlying the switch are unclear. Here we report that neuronal E93, a transcription factor essential for metamorphosis, regulates the adult metabolism, physiology, and behavior in Drosophila melanogaster. METHODS To find new neuronal regulators of metabolism, we performed a targeted RNAi-based screen of 70 Drosophila orthologs of the mammalian genes enriched in ventromedial hypothalamus (VMH). Once E93 was identified from the screen, we characterized changes in physiology and behavior when neuronal expression of E93 is knocked down. To identify the neurons where E93 acts, we performed an additional screen targeting subsets of neurons or endocrine cells. RESULTS E93 is required to control appetite, metabolism, exercise endurance, and circadian rhythms. The diverse phenotypes caused by pan-neuronal knockdown of E93, including obesity, exercise intolerance and circadian disruption, can all be phenocopied by knockdown of E93 specifically in either GABA or MIP neurons, suggesting these neurons are key sites of E93 action. Knockdown of the Ecdysone Receptor specifically in MIP neurons partially phenocopies the MIP neuron-specific knockdown of E93, suggesting the steroid signal coordinates adult metabolism via E93 and a neuropeptidergic signal. Finally, E93 expression in GABA and MIP neurons also serves as a key switch for the adaptation to adult behavior, as animals with reduced expression of E93 in the two subsets of neurons exhibit reduced reproductive activity. CONCLUSIONS Our study reveals that E93 is a new monogenic factor essential for metabolic, physiological, and behavioral adaptation from larval behavior to adult behavior.
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Affiliation(s)
- Cecilia Yip
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Steven C Wyler
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Katrina Liang
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Shin Yamazaki
- Department of Neuroscience and Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Tyler Cobb
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Maryam Safdar
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Aarav Metai
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Warda Merchant
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Robert Wessells
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Adrian Rothenfluh
- Huntsman Mental Health Institute, Department of Psychiatry, University of Utah, Salt Lake City, UT, USA; Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
| | - Syann Lee
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Joel Elmquist
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Young-Jai You
- The Center for Hypothalamic Research, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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24
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Cheng H, Zhong D, Tan Y, Huang M, Xijie S, Pan H, Yang Z, Huang F, Li F, Tang Q. Advancements in research on the association between the biological CLOCK and type 2 diabetes. Front Endocrinol (Lausanne) 2024; 15:1320605. [PMID: 38872971 PMCID: PMC11169578 DOI: 10.3389/fendo.2024.1320605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 05/15/2024] [Indexed: 06/15/2024] Open
Abstract
Due to the Earth's rotation, the natural environment exhibits a light-dark diurnal cycle close to 24 hours. To adapt to this energy intake pattern, organisms have developed a 24-hour rhythmic diurnal cycle over long periods, known as the circadian rhythm, or biological clock. With the gradual advancement of research on the biological clock, it has become increasingly evident that disruptions in the circadian rhythm are closely associated with the occurrence of type 2 diabetes (T2D). To further understand the progress of research on T2D and the biological clock, this paper reviews the correlation between the biological clock and glucose metabolism and analyzes its potential mechanisms. Based on this, we discuss the potential factors contributing to circadian rhythm disruption and their impact on the risk of developing T2D, aiming to explore new possible intervention measures for the prevention and treatment of T2D in the future. Under the light-dark circadian rhythm, in order to adapt to this change, the human body forms an internal biological clock involving a variety of genes, proteins and other molecules. The main mechanism is the transcription-translation feedback loop centered on the CLOCK/BMAL1 heterodimer. The expression of important circadian clock genes that constitute this loop can regulate T2DM-related blood glucose traits such as glucose uptake, fat metabolism, insulin secretion/glucagon secretion and sensitivity in various peripheral tissues and organs. In addition, sleep, light, and dietary factors under circadian rhythms also affect the occurrence of T2DM.
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Affiliation(s)
- Hui Cheng
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
- Institute of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Dayuan Zhong
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
| | - Yimei Tan
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
- Graduate school, Guangzhou University of Chinese Medicine, Foshan, China
| | - Menghe Huang
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
- Graduate school, Guangzhou University of Chinese Medicine, Foshan, China
| | - Sun Xijie
- Institute of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Hong Pan
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
- Institute of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Zixian Yang
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
- Institute of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Fangmei Huang
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
- Institute of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Feifan Li
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
- Institute of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Qizhi Tang
- Nanhai Hospital of Traditional Chinese Medicine, Jinan University, Foshan, China
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25
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González-Suárez M, Aguilar-Arnal L. Histone methylation: at the crossroad between circadian rhythms in transcription and metabolism. Front Genet 2024; 15:1343030. [PMID: 38818037 PMCID: PMC11137191 DOI: 10.3389/fgene.2024.1343030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/24/2024] [Indexed: 06/01/2024] Open
Abstract
Circadian rhythms, essential 24-hour cycles guiding biological functions, synchronize organisms with daily environmental changes. These rhythms, which are evolutionarily conserved, govern key processes like feeding, sleep, metabolism, body temperature, and endocrine secretion. The central clock, located in the suprachiasmatic nucleus (SCN), orchestrates a hierarchical network, synchronizing subsidiary peripheral clocks. At the cellular level, circadian expression involves transcription factors and epigenetic remodelers, with environmental signals contributing flexibility. Circadian disruption links to diverse diseases, emphasizing the urgency to comprehend the underlying mechanisms. This review explores the communication between the environment and chromatin, focusing on histone post-translational modifications. Special attention is given to the significance of histone methylation in circadian rhythms and metabolic control, highlighting its potential role as a crucial link between metabolism and circadian rhythms. Understanding these molecular intricacies holds promise for preventing and treating complex diseases associated with circadian disruption.
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Affiliation(s)
| | - Lorena Aguilar-Arnal
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
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26
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Yu Q, Zuo X, Bai H, Zhang S, Luan J, Zhao Q, Zhao X, Feng X. Alleviative effects of the parthenolide derivative ACT001 on insulin resistance induced by sodium propionate combined with a high-fat diet and its potential mechanisms. Eur J Pharmacol 2024; 971:176529. [PMID: 38554931 DOI: 10.1016/j.ejphar.2024.176529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
The increasing side effects of traditional medications used to treat type II diabetes have made research into the development of safer and more effective natural medications necessary. ACT001, a derivative of parthenolide, has been shown to have good anti-inflammatory and antitumor effects; however, its role in diabetes is unclear. The short-chain fatty acid propionate is a common food preservative that has been found to cause disturbances in glucose metabolism in mice and humans. This study aimed to investigate whether sodium propionate could aggravate insulin resistance in obese mice and cause diabetes and to study the alleviative effects and potential mechanisms of action of ACT001 on insulin resistance in diabetic mice. Type II diabetic mice were adminietered sodium propionate combined with a high-fat diet (HFD + propionate) by gavage daily for four weeks. Biochemical analysis showed that ACT001 significantly affected blood glucose concentration in diabetic mice, mainly by downregulating the expression of phosphoenolpyruvate carboxykinase 2 and glucose-6-phosphatase. Meanwhile, the level of fatty acid-binding protein 4 in the liver was significantly decreased. ACT001 has a protective effect on the liver and adipose tissue of mice. In addition, the results of the running wheel experiment indicated that ACT001 alleviated the circadian rhythm disorder caused by insulin resistance to a certain extent. This study revealed the potential mechanism by which ACT001 alleviates insulin resistance and provides ideas for developing natural antidiabetic drugs.
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Affiliation(s)
- Qian Yu
- College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Xiang Zuo
- College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Huijuan Bai
- College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Shuhui Zhang
- College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Jialu Luan
- College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Qili Zhao
- Institute of Robotics & Automatic Information System, College of Artificial Intelligence, Nankai University, Tianjin, 300071, China
| | - Xin Zhao
- Institute of Robotics & Automatic Information System, College of Artificial Intelligence, Nankai University, Tianjin, 300071, China
| | - Xizeng Feng
- College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin, 300071, China.
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Borrmann H, Rijo-Ferreira F. Crosstalk between circadian clocks and pathogen niche. PLoS Pathog 2024; 20:e1012157. [PMID: 38723104 PMCID: PMC11081299 DOI: 10.1371/journal.ppat.1012157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2024] Open
Abstract
Circadian rhythms are intrinsic 24-hour oscillations found in nearly all life forms. They orchestrate key physiological and behavioral processes, allowing anticipation and response to daily environmental changes. These rhythms manifest across entire organisms, in various organs, and through intricate molecular feedback loops that govern cellular oscillations. Recent studies describe circadian regulation of pathogens, including parasites, bacteria, viruses, and fungi, some of which have their own circadian rhythms while others are influenced by the rhythmic environment of hosts. Pathogens target specific tissues and organs within the host to optimize their replication. Diverse cellular compositions and the interplay among various cell types create unique microenvironments in different tissues, and distinctive organs have unique circadian biology. Hence, residing pathogens are exposed to cyclic conditions, which can profoundly impact host-pathogen interactions. This review explores the influence of circadian rhythms and mammalian tissue-specific interactions on the dynamics of pathogen-host relationships. Overall, this demonstrates the intricate interplay between the body's internal timekeeping system and its susceptibility to pathogens, which has implications for the future of infectious disease research and treatment.
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Affiliation(s)
- Helene Borrmann
- Berkeley Public Health, Molecular and Cell Biology Department, University of California Berkeley, Berkeley, California, United States of America
| | - Filipa Rijo-Ferreira
- Berkeley Public Health, Molecular and Cell Biology Department, University of California Berkeley, Berkeley, California, United States of America
- Chan Zuckerberg Biohub–San Francisco, San Francisco, California, United States of America
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28
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Challet E, Pévet P. Melatonin in energy control: Circadian time-giver and homeostatic monitor. J Pineal Res 2024; 76:e12961. [PMID: 38751172 DOI: 10.1111/jpi.12961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 04/04/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024]
Abstract
Melatonin is a neurohormone synthesized from dietary tryptophan in various organs, including the pineal gland and the retina. In the pineal gland, melatonin is produced at night under the control of the master clock located in the suprachiasmatic nuclei of the hypothalamus. Under physiological conditions, the pineal gland seems to constitute the unique source of circulating melatonin. Melatonin is involved in cellular metabolism in different ways. First, the circadian rhythm of melatonin helps the maintenance of proper internal timing, the disruption of which has deleterious effects on metabolic health. Second, melatonin modulates lipid metabolism, notably through diminished lipogenesis, and it has an antidiabetic effect, at least in several animal models. Third, pharmacological doses of melatonin have antioxidative, free radical-scavenging, and anti-inflammatory properties in various in vitro cellular models. As a result, melatonin can be considered both a circadian time-giver and a homeostatic monitor of cellular metabolism, via multiple mechanisms of action that are not all fully characterized. Aging, circadian disruption, and artificial light at night are conditions combining increased metabolic risks with diminished circulating levels of melatonin. Accordingly, melatonin supplementation could be of potential therapeutic value in the treatment or prevention of metabolic disorders. More clinical trials in controlled conditions are needed, notably taking greater account of circadian rhythmicity.
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Affiliation(s)
- Etienne Challet
- Centre National de la Recherche Scientifique (CNRS), Institute of Cellular and Integrative Neurosciences, University of Strasbourg, Strasbourg, France
| | - Paul Pévet
- Centre National de la Recherche Scientifique (CNRS), Institute of Cellular and Integrative Neurosciences, University of Strasbourg, Strasbourg, France
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29
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Zhu P, Peek CB. Circadian timing of satellite cell function and muscle regeneration. Curr Top Dev Biol 2024; 158:307-339. [PMID: 38670711 DOI: 10.1016/bs.ctdb.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Recent research has highlighted an important role for the molecular circadian machinery in the regulation of tissue-specific function and stress responses. Indeed, disruption of circadian function, which is pervasive in modern society, is linked to accelerated aging, obesity, and type 2 diabetes. Furthermore, evidence supporting the importance of the circadian clock within both the mature muscle tissue and satellite cells to regulate the maintenance of muscle mass and repair capacity in response injury has recently emerged. Here, we review the discovery of circadian clocks within the satellite cell (a.k.a. adult muscle stem cell) and how they act to regulate metabolism, epigenetics, and myogenesis during both healthy and diseased states.
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Affiliation(s)
- Pei Zhu
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, United States; Department of Medicine-Endocrinology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
| | - Clara B Peek
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, United States; Department of Medicine-Endocrinology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States.
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Meier SA, Furrer M, Nowak N, Zenobi R, Sundset MA, Huber R, Brown SA, Wagner G. Uncoupling of behavioral and metabolic 24-h rhythms in reindeer. Curr Biol 2024; 34:1596-1603.e4. [PMID: 38503287 DOI: 10.1016/j.cub.2024.02.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 01/04/2024] [Accepted: 02/28/2024] [Indexed: 03/21/2024]
Abstract
Reindeer in the Arctic seasonally suppress daily circadian patterns of behavior present in most animals.1 In humans and mice, even when all daily behavioral and environmental influences are artificially suppressed, robust endogenous rhythms of metabolism governed by the circadian clock persist and are essential to health.2,3 Disrupted rhythms foster metabolic disorders and weight gain.4 To understand circadian metabolic organization in reindeer, we performed behavioral measurements and untargeted metabolomics from blood plasma samples taken from Eurasian tundra reindeer (Rangifer tarandus tarandus) across 24 h at 2-h intervals in four seasons. Our study confirmed the absence of circadian rhythms of behavior under constant darkness in the Arctic winter and constant daylight in the Arctic summer, as reported by others.1 We detected and measured the intensity of 893 metabolic features in all plasma samples using untargeted ultra-high-performance liquid chromatography-mass spectrometry (UPLC-MS). A core group of metabolites (66/893 metabolic features) consistently displayed 24-h rhythmicity. Most metabolites displayed a robust 24-h rhythm in winter and spring but were arrhythmic in summer and fall. Half of all measured metabolites displayed ultradian sleep-wake dependence in summer. Irrespective of the arrhythmic behavior, metabolism is rhythmic (24 h) in seasons of low food availability, potentially favoring energy efficiency. In seasons of food abundance, 24-h rhythmicity in metabolism is drastically reduced, again irrespective of behavioral rhythms, potentially fostering weight gain.
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Affiliation(s)
- Sara A Meier
- Institute of Pharmacology and Toxicology, University of Zurich, 8057 Zurich, Switzerland
| | - Melanie Furrer
- Child Development Center and Children's Research Center, University Children's Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
| | - Nora Nowak
- Department of Chemistry and Applied Biosciences, Swiss National Technical University (ETH), 8093 Zurich, Switzerland
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, Swiss National Technical University (ETH), 8093 Zurich, Switzerland
| | - Monica A Sundset
- Department of Arctic and Marine Biology, UiT The Arctic University of Norway, 9019 Tromsø, Norway
| | - Reto Huber
- Child Development Center and Children's Research Center, University Children's Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland.
| | - Steven A Brown
- Institute of Pharmacology and Toxicology, University of Zurich, 8057 Zurich, Switzerland
| | - Gabriela Wagner
- Department of Arctic and Marine Biology, UiT The Arctic University of Norway, 9019 Tromsø, Norway; Division of Forest and Forest Resources, Norwegian Institute of Bioeconomy Research, 9016 Tromsø, Norway.
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Latha Laxmi IP, Job AT, Manickam V, Tamizhselvi R. Intertwined relationship of dynamin-related protein 1, mitochondrial metabolism and circadian rhythm. Mol Biol Rep 2024; 51:488. [PMID: 38578426 DOI: 10.1007/s11033-024-09430-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 03/08/2024] [Indexed: 04/06/2024]
Abstract
In recent years, mitochondria have gained significant interest in the field of biomedical research due to their impact on human health and ageing. As mitochondrial dynamics are strongly controlled by clock genes, misalignment of the circadian rhythm leads to adverse metabolic health effects. In this review, by exploring various aspects of research and potential links, we hope to update the current understanding of the intricate relationship between DRP1-mediated mitochondrial dynamics and changes in circadian rhythmicity leading to health issues. Thus, this review addresses the potential bidirectional relationships between DRP1-linked mitochondrial function and circadian rhythm misalignment, their impact on different metabolic pathways, and the potential therapeutics for metabolic and systemic disorders.
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Affiliation(s)
| | - Anica Tholath Job
- Department of Biotechnology, National Institute of Technology, Warangal, 506004, Telangana, India
| | - Venkatraman Manickam
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632104, Tamil Nadu, India
| | - Ramasamy Tamizhselvi
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632104, Tamil Nadu, India.
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Bass J. Interorgan rhythmicity as a feature of healthful metabolism. Cell Metab 2024; 36:655-669. [PMID: 38335957 PMCID: PMC10990795 DOI: 10.1016/j.cmet.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 02/12/2024]
Abstract
The finding that animals with circadian gene mutations exhibit diet-induced obesity and metabolic syndrome with hypoinsulinemia revealed a distinct role for the clock in the brain and peripheral tissues. Obesogenic diets disrupt rhythmic sleep/wake patterns, feeding behavior, and transcriptional networks, showing that metabolic signals reciprocally control the clock. Providing access to high-fat diet only during the sleep phase (light period) in mice accelerates weight gain, whereas isocaloric time-restricted feeding during the active period enhances energy expenditure due to circadian induction of adipose thermogenesis. This perspective focuses on advances and unanswered questions in understanding the interorgan circadian control of healthful metabolism.
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Affiliation(s)
- Joseph Bass
- Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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Kulkarni SS, Singh O, Zigman JM. The intersection between ghrelin, metabolism and circadian rhythms. Nat Rev Endocrinol 2024; 20:228-238. [PMID: 38123819 DOI: 10.1038/s41574-023-00927-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/16/2023] [Indexed: 12/23/2023]
Abstract
Despite the growing popular interest in sleep and diet, many gaps exist in our scientific understanding of the interaction between circadian rhythms and metabolism. In this Review, we explore a promising, bidirectional role for ghrelin in mediating this interaction. Ghrelin both influences and is influenced by central and peripheral circadian systems. Specifically, we focus on how ghrelin impacts outputs of circadian rhythm, including neuronal activity, circulating growth hormone levels, locomotor activity and eating behaviour. We also consider the effects of circadian rhythms on ghrelin expression and the consequences of disrupted circadian patterns, such as shift work and jet lag, on ghrelin secretion. Our Review is aimed at both the casual reader interested in gaining more insight into the scientific context surrounding the trending topics of sleep and metabolism, as well as experienced scientists in the fields of ghrelin and circadian biology seeking inspiration and a comprehensive overview of how these fields are related.
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Affiliation(s)
- Soumya S Kulkarni
- Medical Scientist Training Program, UT Southwestern Medical Center, Dallas, TX, USA
- Center for Hypothalamic Research, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX, USA
| | - Omprakash Singh
- Center for Hypothalamic Research, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX, USA
| | - Jeffrey M Zigman
- Center for Hypothalamic Research, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX, USA.
- Division of Endocrinology, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX, USA.
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX, USA.
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Ciccone C, Kante F, Folkow LP, Hazlerigg DG, West AC, Wood SH. Circadian coupling of mitochondria in a deep-diving mammal. J Exp Biol 2024; 227:jeb246990. [PMID: 38495024 PMCID: PMC11058691 DOI: 10.1242/jeb.246990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Regulation of mitochondrial oxidative phosphorylation is essential to match energy supply to changing cellular energy demands, and to cope with periods of hypoxia. Recent work implicates the circadian molecular clock in control of mitochondrial function and hypoxia sensing. Because diving mammals experience intermittent episodes of severe hypoxia, with diel patterning in dive depth and duration, it is interesting to consider circadian-mitochondrial interaction in this group. Here, we demonstrate that the hooded seal (Cystophora cristata), a deep-diving Arctic pinniped, shows strong daily patterning of diving behaviour in the wild. Cultures of hooded seal skin fibroblasts exhibit robust circadian oscillation of the core clock genes per2 and arntl. In liver tissue collected from captive hooded seals, expression of arntl was some 4-fold higher in the middle of the night than in the middle of the day. To explore the clock-mitochondria relationship, we measured the mitochondrial oxygen consumption in synchronized hooded seal skin fibroblasts and found a circadian variation in mitochondrial activity, with higher coupling efficiency of complex I coinciding with the trough of arntl expression. These results open the way for further studies of circadian-hypoxia interactions in pinnipeds during diving.
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Affiliation(s)
- Chiara Ciccone
- Arctic Seasonal Timekeeping Initiative (ASTI), Arctic Chronobiology and Physiology Research Group, Department of Arctic and Marine Biology, UiT – The Arctic University of Norway, Tromsø NO-9037, Norway
| | - Fayiri Kante
- Arctic Seasonal Timekeeping Initiative (ASTI), Arctic Chronobiology and Physiology Research Group, Department of Arctic and Marine Biology, UiT – The Arctic University of Norway, Tromsø NO-9037, Norway
| | - Lars P. Folkow
- Arctic Seasonal Timekeeping Initiative (ASTI), Arctic Chronobiology and Physiology Research Group, Department of Arctic and Marine Biology, UiT – The Arctic University of Norway, Tromsø NO-9037, Norway
| | - David G. Hazlerigg
- Arctic Seasonal Timekeeping Initiative (ASTI), Arctic Chronobiology and Physiology Research Group, Department of Arctic and Marine Biology, UiT – The Arctic University of Norway, Tromsø NO-9037, Norway
| | - Alexander C. West
- Arctic Seasonal Timekeeping Initiative (ASTI), Arctic Chronobiology and Physiology Research Group, Department of Arctic and Marine Biology, UiT – The Arctic University of Norway, Tromsø NO-9037, Norway
| | - Shona H. Wood
- Arctic Seasonal Timekeeping Initiative (ASTI), Arctic Chronobiology and Physiology Research Group, Department of Arctic and Marine Biology, UiT – The Arctic University of Norway, Tromsø NO-9037, Norway
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Franzago M, Borrelli P, Cavallo P, Di Tizio L, Gazzolo D, Di Nicola M, Stuppia L, Vitacolonna E. Circadian Gene Variants: Effects in Overweight and Obese Pregnant Women. Int J Mol Sci 2024; 25:3838. [PMID: 38612648 PMCID: PMC11011577 DOI: 10.3390/ijms25073838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/19/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Obesity and overweight are common and complex conditions influenced by multiple genetic and environmental factors. Several genetic variants located in the genes involved in clock systems and fat taste perception can affect metabolic health. In particular, the polymorphisms in CLOCK and BMAL1 genes were reported to be significantly related to cardiovascular disease, metabolic syndrome, sleep reduction, and evening preference. Moreover, genetic variants in the CD36 gene have been shown to be involved in lipid metabolism, regulation of fat intake, and body weight regulation. The aim of this study is to evaluate, for the first time, the association between variants in some candidate genes (namely, BMAL1 rs7950226 (G>A), CLOCK rs1801260 (A>G), CLOCK rs4864548 (G>A), CLOCK rs3736544 (G>A), CD36 rs1984112 (A>G), CD36 rs1761667 (G>A)) and overweight/obesity (OB) in pregnant women. A total of 163 normal-weight (NW) and 128 OB participants were included. A significant correlation was observed between A-allele in CLOCK rs4864548 and an increased risk of obesity (OR: 1.97; 95% CI 1.22-3.10, p = 0.005). In addition, we found that subjects carrying the haplotype of rs1801260-A, rs4864548-A, and rs3736544-G are likely to be overweight or obese (OR 1.47, 95% CI 1.03-2.09, p = 0.030), compared with those with other haplotypes. Moreover, a significant relation was observed between third-trimester lipid parameters and genetic variants-namely, CD36 rs1984112, CD36 rs1761667, BMAL1 rs7950226, and CLOCK rs1801260. A multivariate logistic regression model revealed that CLOCK rs4864548 A-allele carriage was a strong risk factor for obesity (OR 2.05, 95% CI 1.07-3.93, p = 0.029); on the other hand, greater adherence to Mediterranean diet (OR 0.80, 95% CI 0.65-0.98, p = 0.038) and higher HDL levels (OR 0.96, 95% CI 0.94-0.99, p = 0.021) were related to a reduced risk of obesity. Interestingly, an association between maternal CLOCK rs4864548 and neonatal birthweight was detected (p = 0.025). These data suggest a potential role of the polymorphisms in clock systems and in fat taste perception in both susceptibility to overweight/obesity and influencing the related metabolic traits in pregnant women.
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Affiliation(s)
- Marica Franzago
- Department of Medicine and Aging, School of Medicine, and Health Sciences, “G. D’Annunzio” University, Via dei Vestini, Chieti-Pescara, 66100 Chieti, Italy; (M.F.); (P.C.); (D.G.)
- Center for Advanced Studies and Technology (CAST), “G. D’Annunzio” University, Chieti-Pescara, 66100 Chieti, Italy;
| | - Paola Borrelli
- Laboratory of Biostatistics, Department of Medical, Oral and Biotechnological Sciences, “G. D’Annunzio” University, Chieti-Pescara, 66100 Chieti, Italy; (P.B.); (M.D.N.)
| | - Pierluigi Cavallo
- Department of Medicine and Aging, School of Medicine, and Health Sciences, “G. D’Annunzio” University, Via dei Vestini, Chieti-Pescara, 66100 Chieti, Italy; (M.F.); (P.C.); (D.G.)
| | - Luciano Di Tizio
- Department of Obstetrics and Gynaecology, SS. Annunziata Hospital, “G. D’Annunzio” University, 66100 Chieti, Italy;
| | - Diego Gazzolo
- Department of Medicine and Aging, School of Medicine, and Health Sciences, “G. D’Annunzio” University, Via dei Vestini, Chieti-Pescara, 66100 Chieti, Italy; (M.F.); (P.C.); (D.G.)
- Neonatal Intensive Care Unit, “G. D’Annunzio” University, 66100 Chieti, Italy
| | - Marta Di Nicola
- Laboratory of Biostatistics, Department of Medical, Oral and Biotechnological Sciences, “G. D’Annunzio” University, Chieti-Pescara, 66100 Chieti, Italy; (P.B.); (M.D.N.)
| | - Liborio Stuppia
- Center for Advanced Studies and Technology (CAST), “G. D’Annunzio” University, Chieti-Pescara, 66100 Chieti, Italy;
- Department of Psychological, Health and Territorial Sciences, School of Medicine and Health Sciences, “G. D’Annunzio” University, Chieti-Pescara, 66100 Chieti, Italy
| | - Ester Vitacolonna
- Department of Medicine and Aging, School of Medicine, and Health Sciences, “G. D’Annunzio” University, Via dei Vestini, Chieti-Pescara, 66100 Chieti, Italy; (M.F.); (P.C.); (D.G.)
- Center for Advanced Studies and Technology (CAST), “G. D’Annunzio” University, Chieti-Pescara, 66100 Chieti, Italy;
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36
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Peters B, Vahlhaus J, Pivovarova-Ramich O. Meal timing and its role in obesity and associated diseases. Front Endocrinol (Lausanne) 2024; 15:1359772. [PMID: 38586455 PMCID: PMC10995378 DOI: 10.3389/fendo.2024.1359772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/01/2024] [Indexed: 04/09/2024] Open
Abstract
Meal timing emerges as a crucial factor influencing metabolic health that can be explained by the tight interaction between the endogenous circadian clock and metabolic homeostasis. Mistimed food intake, such as delayed or nighttime consumption, leads to desynchronization of the internal circadian clock and is associated with an increased risk for obesity and associated metabolic disturbances such as type 2 diabetes and cardiovascular diseases. Conversely, meal timing aligned with cellular rhythms can optimize the performance of tissues and organs. In this review, we provide an overview of the metabolic effects of meal timing and discuss the underlying mechanisms. Additionally, we explore factors influencing meal timing, including internal determinants such as chronotype and genetics, as well as external influences like social factors, cultural aspects, and work schedules. This review could contribute to defining meal-timing-based recommendations for public health initiatives and developing guidelines for effective lifestyle modifications targeting the prevention and treatment of obesity and associated metabolic diseases. Furthermore, it sheds light on crucial factors that must be considered in the design of future food timing intervention trials.
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Affiliation(s)
- Beeke Peters
- Research Group Molecular Nutritional Medicine and Department of Human Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- German Center for Diabetes Research (DZD), München, Germany
| | - Janna Vahlhaus
- Research Group Molecular Nutritional Medicine and Department of Human Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- University of Lübeck, Lübeck, Germany
| | - Olga Pivovarova-Ramich
- Research Group Molecular Nutritional Medicine and Department of Human Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- University of Lübeck, Lübeck, Germany
- Department of Endocrinology and Metabolism, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, and Humboldt-Universität zu Berlin, Berlin, Germany
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37
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Abstract
The timing of life on Earth is remarkable: between individuals of the same species, a highly similar temporal pattern is observed, with shared periods of activity and inactivity each day. At the individual level, this means that over the course of a single day, a person alternates between two states. They are either upright, active, and communicative or they lie down in a state of (un)consciousness called sleep where even the characteristic of neuronal signals in the brain shows distinctive properties. The circadian clock governs both of these time stamps-activity and (apparent) inactivity-making them come and go consistently at the same approximate time each day. This behavior thus represents the meeting of two pervasive systems: the circadian clock and metabolism. In this article, we will describe what is known about how the circadian clock anticipates daily changes in oxygen usage, how circadian clock regulation may relate to normal physiology, and to hypoxia and ischemia that can result from pathologies such as myocardial infarction and stroke.
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Affiliation(s)
- Francesca Sartor
- Institute of Medical Psychology, Medical Faculty, LMU Munich, Germany (F.S., B.F.-B., M.M.)
| | - Borja Ferrero-Bordera
- Institute of Medical Psychology, Medical Faculty, LMU Munich, Germany (F.S., B.F.-B., M.M.)
| | - Jeffrey Haspel
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO (J.H.)
| | - Markus Sperandio
- Institute for Cardiovascular Physiology and Pathophysiology, Walter Brendel Center for Experimental Medicine, and the Biomedical Center (BMC), Medical Faculty, LMU Munich, Germany (M.S.)
| | - Paul M Holloway
- Radcliffe Department of Medicine, University of Oxford, United Kingdom (P.M.H.)
| | - Martha Merrow
- Institute of Medical Psychology, Medical Faculty, LMU Munich, Germany (F.S., B.F.-B., M.M.)
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38
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Raza GS, Kaya Y, Stenbäck V, Sharma R, Sodum N, Mutt SJ, Gagnon DD, Tulppo M, Järvelin MR, Herzig KH, Mäkelä KA. Effect of Aerobic Exercise and Time-Restricted Feeding on Metabolic Markers and Circadian Rhythm in Mice Fed with the High-Fat Diet. Mol Nutr Food Res 2024; 68:e2300465. [PMID: 38389173 DOI: 10.1002/mnfr.202300465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/30/2023] [Indexed: 02/24/2024]
Abstract
SCOPE Diet and exercise are significant players in obesity and metabolic diseases. Time-restricted feeding (tRF) has been shown to improve metabolic responses by regulating circadian clocks but whether it acts synergically with exercise remains unknown. It is hypothesized that forced exercise alone or combined with tRF alleviates obesity and its metabolic complications. METHODS AND RESULTS Male C57bl6 mice are fed with high-fat or a control diet for 12 weeks either ad libitum or tRF for 10 h during their active period. High-fat diet (HFD)-fed mice are divided into exercise (treadmill for 1 h at 12 m min-1 alternate days for 9 weeks and 16 m min-1 daily for the following 3 weeks) and non-exercise groups. tRF and tRF-Ex significantly decreased body weight, food intake, and plasma lipids, and improved glucose tolerance. However, exercise reduced only body weight and plasma lipids. tRF and tRF-Ex significantly downregulated Fasn, Hmgcr, and Srebp1c, while exercise only Hmgcr. HFD feeding disrupted clock genes, but exercise, tRF, and tRF-Ex coordinated the circadian clock genes Bmal1, Per2, and Rev-Erbα in the liver, adipose tissue, and skeletal muscles. CONCLUSION HFD feeding disrupted clock genes in the peripheral organs while exercise, tRF, and their combination restored clock genes and improved metabolic consequences induced by high-fat diet feeding.
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Affiliation(s)
- Ghulam Shere Raza
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Yağmur Kaya
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Istanbul Kent University, Istanbul, 34406, Turkey
| | - Ville Stenbäck
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Ravikant Sharma
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Nalini Sodum
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Shivaprakash Jagalur Mutt
- Department of Medical Cell Biology, Science for Life Laboratory, Uppsala University, Uppsala, 75123, Sweden
| | - Dominique D Gagnon
- Faculty of Sports and Health Sciences, University of Jyväskylä, Seminaarinkatu 15, Jyväskylä, 40014, Finland
- Clinic for Sports and Exercise Medicine, Department of Sports and Exercise Medicine, Faculty of Medicine, University of Helsinki Mäkelänkatu, Helsinki, 00550, Finland
| | - Mikko Tulppo
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Marjo-Riitta Järvelin
- Department of Epidemiology and Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, SW72AZ, UK
| | - Karl-Heinz Herzig
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
- Pediatric Gastroenterology and Metabolic Diseases, Pediatric Institute, Poznan University of Medical Sciences, Poznań, 60-572, Poland
| | - Kari A Mäkelä
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
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Moreno-Cortés ML, Meza-Alvarado JE, García-Mena J, Hernández-Rodríguez A. Chronodisruption and Gut Microbiota: Triggering Glycemic Imbalance in People with Type 2 Diabetes. Nutrients 2024; 16:616. [PMID: 38474745 DOI: 10.3390/nu16050616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/27/2024] [Accepted: 01/28/2024] [Indexed: 03/14/2024] Open
Abstract
The desynchronization of physiological and behavioral mechanisms influences the gut microbiota and eating behavior in mammals, as shown in both rodents and humans, leading to the development of pathologies such as Type 2 diabetes (T2D), obesity, and metabolic syndrome. Recent studies propose resynchronization as a key input controlling metabolic cycles and contributing to reducing the risk of suffering some chronic diseases such as diabetes, obesity, or metabolic syndrome. In this analytical review, we present an overview of how desynchronization and its implications for the gut microbiome make people vulnerable to intestinal dysbiosis and consequent chronic diseases. In particular, we explore the eubiosis-dysbiosis phenomenon and, finally, propose some topics aimed at addressing chronotherapy as a key strategy in the prevention of chronic diseases.
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Affiliation(s)
- María Luisa Moreno-Cortés
- Laboratorio de Biomedicina, Instituto de Investigaciones Biológicas, Universidad Veracruzana, Xalapa 91190, Veracruz, Mexico
| | | | - Jaime García-Mena
- Departamento de Genética y Biología Molecular, Cinvestav, Av. Instituto Politécnico Nacional 2508, CDMX 07360, Mexico
| | - Azucena Hernández-Rodríguez
- Laboratorio de Biomedicina, Instituto de Investigaciones Biológicas, Universidad Veracruzana, Xalapa 91190, Veracruz, Mexico
- Facultad de Bioanálisis, Universidad Veracruzana, Xalapa 91010, Veracruz, Mexico
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40
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Koike N, Umemura Y, Inokawa H, Tokuda I, Tsuchiya Y, Sasawaki Y, Umemura A, Masuzawa N, Yabumoto K, Seya T, Sugimoto A, Yoo SH, Chen Z, Yagita K. Inter-individual variations in circadian misalignment-induced NAFLD pathophysiology in mice. iScience 2024; 27:108934. [PMID: 38533453 PMCID: PMC10964262 DOI: 10.1016/j.isci.2024.108934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/19/2023] [Accepted: 01/12/2024] [Indexed: 03/28/2024] Open
Abstract
Pathological consequences of circadian misalignment, such as shift work, show considerable individual differences, but the lack of mechanistic understanding hinders precision prevention to prevent and mitigate disease symptoms. Here, we employed an integrative approach involving physiological, transcriptional, and histological phenotypes to examine inter-individual differences in pre-symptomatic pathological progression, preceding irreversible disease onset, in wild-type mice exposed to chronic jet-lag (CJL). We observed that CJL markedly increased the prevalence of hepatic steatosis with pronounced inter-individual differences. Stratification of individual mice based on CJL-induced hepatic transcriptomic signature, validated by histopathological analysis, pinpoints dysregulation of lipid metabolism. Moreover, the period and power of intrinsic behavioral rhythms were found to significantly correlate with CJL-induced gene signatures. Together, our results suggest circadian rhythm robustness of the animals contributes to inter-individual variations in pathogenesis of circadian misalignment-induced diseases and raise the possibility that these physiological indicators may be available for predictive hallmarks of circadian rhythm disorders.
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Affiliation(s)
- Nobuya Koike
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yasuhiro Umemura
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Hitoshi Inokawa
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
- Department of Human Nutrition, Chugoku Gakuen University, Okayama 701-0197, Japan
| | - Isao Tokuda
- Department of Mechanical Engineering, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Yoshiki Tsuchiya
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yuh Sasawaki
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Atsushi Umemura
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Naoko Masuzawa
- Department of Clinical Pathology, Otsu City Hospital, Otsu 520-0804, Japan
| | - Kazuya Yabumoto
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Takashi Seya
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Akira Sugimoto
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Seung-Hee Yoo
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Zheng Chen
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Kazuhiro Yagita
- Department of Physiology and Systems Bioscience, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
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41
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Yang Z, Zarbl H, Guo GL. Circadian Regulation of Endocrine Fibroblast Growth Factors on Systemic Energy Metabolism. Mol Pharmacol 2024; 105:179-193. [PMID: 38238100 PMCID: PMC10877735 DOI: 10.1124/molpharm.123.000831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/05/2024] [Indexed: 02/17/2024] Open
Abstract
The circadian clock is an endogenous biochemical timing system that coordinates the physiology and behavior of organisms to earth's ∼24-hour circadian day/night cycle. The central circadian clock synchronized by environmental cues hierarchically entrains peripheral clocks throughout the body. The circadian system modulates a wide variety of metabolic signaling pathways to maintain whole-body metabolic homeostasis in mammals under changing environmental conditions. Endocrine fibroblast growth factors (FGFs), namely FGF15/19, FGF21, and FGF23, play an important role in regulating systemic metabolism of bile acids, lipids, glucose, proteins, and minerals. Recent evidence indicates that endocrine FGFs function as nutrient sensors that mediate multifactorial interactions between peripheral clocks and energy homeostasis by regulating the expression of metabolic enzymes and hormones. Circadian disruption induced by environmental stressors or genetic ablation is associated with metabolic dysfunction and diurnal disturbances in FGF signaling pathways that contribute to the pathogenesis of metabolic diseases. Time-restricted feeding strengthens the circadian pattern of metabolic signals to improve metabolic health and prevent against metabolic diseases. Chronotherapy, the strategic timing of medication administration to maximize beneficial effects and minimize toxic effects, can provide novel insights into linking biologic rhythms to drug metabolism and toxicity within the therapeutical regimens of diseases. Here we review the circadian regulation of endocrine FGF signaling in whole-body metabolism and the potential effect of circadian dysfunction on the pathogenesis and development of metabolic diseases. We also discuss the potential of chrononutrition and chronotherapy for informing the development of timing interventions with endocrine FGFs to optimize whole-body metabolism in humans. SIGNIFICANCE STATEMENT: The circadian timing system governs physiological, metabolic, and behavioral functions in living organisms. The endocrine fibroblast growth factor (FGF) family (FGF15/19, FGF21, and FGF23) plays an important role in regulating energy and mineral metabolism. Endocrine FGFs function as nutrient sensors that mediate multifactorial interactions between circadian clocks and metabolic homeostasis. Chronic disruption of circadian rhythms increases the risk of metabolic diseases. Chronological interventions such as chrononutrition and chronotherapy provide insights into linking biological rhythms to disease prevention and treatment.
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Affiliation(s)
- Zhenning Yang
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (Z.Y., G.L.G.), Environmental and Occupational Health Sciences Institute (Z.Y., H.Z., G.L.G.), Department of Environmental and Occupational Health Justice, School of Public Health (H.Z.), Rutgers Center for Lipid Research (G.L.G.), Rutgers, The State University of New Jersey, New Brunswick, New Jersey; and VA New Jersey Health Care System, Veterans Administration Medical Center, East Orange, New Jersey (G.L.G.)
| | - Helmut Zarbl
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (Z.Y., G.L.G.), Environmental and Occupational Health Sciences Institute (Z.Y., H.Z., G.L.G.), Department of Environmental and Occupational Health Justice, School of Public Health (H.Z.), Rutgers Center for Lipid Research (G.L.G.), Rutgers, The State University of New Jersey, New Brunswick, New Jersey; and VA New Jersey Health Care System, Veterans Administration Medical Center, East Orange, New Jersey (G.L.G.)
| | - Grace L Guo
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy (Z.Y., G.L.G.), Environmental and Occupational Health Sciences Institute (Z.Y., H.Z., G.L.G.), Department of Environmental and Occupational Health Justice, School of Public Health (H.Z.), Rutgers Center for Lipid Research (G.L.G.), Rutgers, The State University of New Jersey, New Brunswick, New Jersey; and VA New Jersey Health Care System, Veterans Administration Medical Center, East Orange, New Jersey (G.L.G.)
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Jesse TG, Becer E, Kalkan R. Identification of the Relationship Between DNA Methylation of Circadian Rhythm Genes and Obesity. Biochem Genet 2024; 62:281-293. [PMID: 37329425 DOI: 10.1007/s10528-023-10415-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 06/06/2023] [Indexed: 06/19/2023]
Abstract
In children, teenagers, and young adults, environmental factors and genetic modifications have contributed to the development of obesity. There is a close relationship between obesity and circadian rhythm. To understand the role of CLOCK and BMAL1 in obesity, we analyzed the methylation status of CLOCK and BMAL1 in obese and control subjects. In this paper, we analyzed the methylation status of the CLOCK and BMAL1 genes by using MS-HRM in a total of 55 obese and 54 control subjects. In our study, we demonstrated that the level of fasting glucose and the level of HDL-cholesterol were associated with CLOCK methylation in obesity. We also showed a significant association between BMAL1 gene methylation and waist and hip circumference in obese subjects. This is the first study that shows the methylation of BMAL1 is associated with the obese phenotype. However, we could not show a direct association between CLOCK methylation and the obese phenotype. In this paper, a novel epigenetic interaction between circadian clock genes and obesity was demonstrated.
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Affiliation(s)
- Tirah Galaya Jesse
- Department of Medical Genetics, Faculty of Medicine, Near East University, Mersin 10, Nicosia, 99138, Turkey
| | - Eda Becer
- Faculty of Pharmacy, Eastern Mediterranean University, Mersin 10, Famagusta, 99628, Turkey
| | - Rasime Kalkan
- Department of Medical Genetics, Faculty of Medicine, Near East University, Mersin 10, Nicosia, 99138, Turkey.
- Department of Medical Genetics, Faculty of Medicine, Cyprus Health and Social Sciences University, Mersin 10, Guzelyurt, 99138, Turkey.
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Liu L, Liu L, Deng S, Zou L, He Y, Zhu X, Li H, Hu Y, Chu W, Wang X. Circadian Rhythm Alteration of the Core Clock Genes and the Lipid Metabolism Genes Induced by High-Fat Diet (HFD) in the Liver Tissue of the Chinese Soft-Shelled Turtle ( Trionyx sinensis). Genes (Basel) 2024; 15:157. [PMID: 38397147 PMCID: PMC10888015 DOI: 10.3390/genes15020157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Physiology disorders of the liver, as it is an important tissue in lipid metabolism, can cause fatty liver disease. The mechanism might be regulated by 17 circadian clock genes and 18 fat metabolism genes, together with a high-fat diet (HFD). Due to their rich nutritional and medicinal value, Chinese soft-shelled turtles (Trionyx sinensis) are very popular among the Chinese people. In the study, we aimed to investigate the influence of an HFD on the daily expression of both the core clock genes and the lipid metabolism genes in the liver tissue of the turtles. The two diets were formulated with 7.98% lipid (the CON group) and 13.86% lipid (the HFD group) to feed 180 juvenile turtles, which were randomly divided into two groups with three replicates per group and 30 turtles in each replicate for six weeks, and the diet experiment was administrated with a photophase regimen of a 24 h light/dark (12L:12D) cycle. At the end of the experiment, the liver tissue samples were collected from nine turtles per group every 3 h (zeitgeber time: ZT 0, 3, 6, 9, 12, 15, 18, 21 and 24) for 24 h to investigate the daily expression and correlation analysis of these genes. The results showed that 11 core clock genes [i.e., circadian locomotor output cycles kaput (Clock), brain and muscle arnt-like protein 1 and 2 (Bmal1/2), timeless (Tim), cryptochrome 1 (Cry2), period2 (Per2), nuclear factor IL-3 gene (Nfil3), nuclear receptor subfamily 1, treatment D, member 1 and 2 (Nr1d1/2) and retinoic acid related orphan receptor α/β/γ β and γ (Rorβ/γ)] exhibited circadian oscillation, but 6 genes did not, including neuronal PAS domain protein 2 (Npas2), Per1, Cry1, basic helix-loop-helix family, member E40 (Bhlhe40), Rorα and D-binding protein (Dbp), and 16 lipid metabolism genes including fatty acid synthase (Fas), diacylglycerol acyltransferase 1 (Dgat1), 3-hydroxy-3-methylglutaryl-CoA reductase (Hmgcr), Low-density lipoprotein receptor-related protein 1-like (Ldlr1), Lipin 1 (Lipin1), Carnitine palmitoyltransferase 1A (Cpt1a), Peroxisome proliferator activation receptor α, β and γ (Pparα/β/γ), Sirtuin 1 (Sirt1), Apoa (Apoa1), Apolipoprotein B (Apob), Pyruvate Dehydrogenase kinase 4 (Pdk4), Acyl-CoA synthase long-chain1 (Acsl1), Liver X receptors α (Lxrα) and Retinoid X receptor, α (Rxra) also demonstrated circadian oscillations, but 2 genes did not, Scd and Acaca, in the liver tissues of the CON group. However, in the HFD group, the circadian rhythms' expressional patterns were disrupted for the eight core clock genes, Clock, Cry2, Per2, Nfil3, Nr1d1/2 and Rorβ/γ, and the peak expression of Bmal1/2 and Tim showed delayed or advanced phases. Furthermore, four genes (Cry1, Per1, Dbp and Rorα) displayed no diurnal rhythm in the CON group; instead, significant circadian rhythms appeared in the HFD group. Meanwhile, the HFD disrupted the circadian rhythm expressions of seven fat metabolism genes (Fas, Cpt1a, Sirt1, Apoa1, Apob, Pdk4 and Acsl1). Meanwhile, the other nine genes in the HFD group also showed advanced or delayed expression peaks compared to the CON group. Most importantly of all, there were remarkably positive or negative correlations between the core clock genes and the lipid metabolism genes, and their correlation relationships were altered by the HFD. To sum up, circadian rhythm alterations of the core clock genes and the lipid metabolism genes were induced by the high-fat diet (HFD) in the liver tissues of T. sinensis. This result provides experimental and theoretical data for the mass breeding and production of T. sinensis in our country.
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Affiliation(s)
- Li Liu
- School of Medical Technology, Shaoyang University, Shaoyang 422000, China;
| | - Lingli Liu
- Fisheries Research Institute of Hunan Province, Changsha 410153, China; (L.L.); (S.D.)
| | - Shiming Deng
- Fisheries Research Institute of Hunan Province, Changsha 410153, China; (L.L.); (S.D.)
| | - Li Zou
- Fisheries Research Institute of Hunan Province, Changsha 410153, China; (L.L.); (S.D.)
| | - Yong He
- Fisheries Research Institute of Hunan Province, Changsha 410153, China; (L.L.); (S.D.)
| | - Xin Zhu
- College of Biological and Chemical Engineering, Changsha University, Changsha 410003, China (H.L.)
| | - Honghui Li
- College of Biological and Chemical Engineering, Changsha University, Changsha 410003, China (H.L.)
| | - Yazhou Hu
- Fisheries College, Hunan Agriculture University, Changsha 410128, China;
| | - Wuying Chu
- College of Biological and Chemical Engineering, Changsha University, Changsha 410003, China (H.L.)
| | - Xiaoqing Wang
- Fisheries College, Hunan Agriculture University, Changsha 410128, China;
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Jung IR, Ahima RS, Kim SF. Time-Restricted Feeding Ameliorates Methionine-Choline Deficient Diet-Induced Steatohepatitis in Mice. Int J Mol Sci 2024; 25:1390. [PMID: 38338668 PMCID: PMC10855189 DOI: 10.3390/ijms25031390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/20/2024] [Accepted: 01/21/2024] [Indexed: 02/12/2024] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is an inflammatory form of non-alcoholic fatty liver disease (NAFLD), closely associated with disease progression, cirrhosis, liver failure, and hepatocellular carcinoma. Time-restricted feeding (TRF) has been shown to decrease body weight and adiposity and improve metabolic outcomes; however, the effect of TRF on NASH has not yet been fully understood. We had previously reported that inositol polyphosphate multikinase (IPMK) mediates hepatic insulin signaling. Importantly, we have found that TRF increases hepatic IPMK levels. Therefore, we investigated whether there is a causal link between TRF and IPMK in a mouse model of NASH, i.e., methionine- and choline-deficient diet (MCDD)-induced steatohepatitis. Here, we show that TRF alleviated markers of NASH, i.e., reduced hepatic steatosis, liver triglycerides (TG), serum alanine transaminase (ALT) and aspartate aminotransferase (AST), inflammation, and fibrosis in MCDD mice. Interestingly, MCDD led to a significant reduction in IPMK levels, and the deletion of hepatic IPMK exacerbates the NASH phenotype induced by MCDD, accompanied by increased gene expression of pro-inflammatory chemokines. Conversely, TRF restored IPMK levels and significantly reduced gene expression of proinflammatory cytokines and chemokines. Our results demonstrate that TRF attenuates MCDD-induced NASH via IPMK-mediated changes in hepatic steatosis and inflammation.
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Affiliation(s)
| | - Rexford S. Ahima
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University, Baltimore, MD 21218, USA;
| | - Sangwon F. Kim
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University, Baltimore, MD 21218, USA;
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45
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Lin X, Wang S, Huang J. The effects of time-restricted eating for patients with nonalcoholic fatty liver disease: a systematic review. Front Nutr 2024; 10:1307736. [PMID: 38239843 PMCID: PMC10794638 DOI: 10.3389/fnut.2023.1307736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/08/2023] [Indexed: 01/22/2024] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) represents a significant global health concern. Numerous investigations have explored the implications of time-restricted eating (TRE) in the management of NAFLD. Therefore, the objective of our study was to conduct a systematic review to summarize and analyze all randomized controlled trials (RCTs) of TRE for patients with NAFLD. A thorough literature search was executed across Embase, Cochrane Library, and PubMed databases, covering all records from their inception until 1 September 2023. All clinical studies of TRE for NAFLD were summarized and analyzed. Our systematic review included four RCTs, encompassing a total of 443 NAFLD patients. These studies varied in sample size from 32 to 271 participants. The TRE intervention was consistently applied in an 8-h window, over durations ranging from 4 weeks to 12 months. The findings suggest that TRE could offer several health benefits for NAFLD patients, such as improved liver health indicators like liver stiffness and intrahepatic triglyceride (IHTG) levels. Consequently, TRE appears to be a promising dietary intervention for NAFLD patients. However, it is premature to recommend TRE for patients with NAFLD. The existing body of research on the effects of TRE in NAFLD contexts is limited, underscoring the need for further high-quality studies to expand our understanding of TRE's benefits in treating NAFLD. Ongoing clinical trials may provide more insights into the effects of TRE in NAFLD.
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Affiliation(s)
| | - Shuai Wang
- Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jinyu Huang
- Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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46
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Weidemann BJ, Marcheva B, Kobayashi M, Omura C, Newman MV, Kobayashi Y, Waldeck NJ, Perelis M, Lantier L, McGuinness OP, Ramsey KM, Stein RW, Bass J. Repression of latent NF-κB enhancers by PDX1 regulates β cell functional heterogeneity. Cell Metab 2024; 36:90-102.e7. [PMID: 38171340 PMCID: PMC10793877 DOI: 10.1016/j.cmet.2023.11.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 07/17/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024]
Abstract
Interactions between lineage-determining and activity-dependent transcription factors determine single-cell identity and function within multicellular tissues through incompletely known mechanisms. By assembling a single-cell atlas of chromatin state within human islets, we identified β cell subtypes governed by either high or low activity of the lineage-determining factor pancreatic duodenal homeobox-1 (PDX1). β cells with reduced PDX1 activity displayed increased chromatin accessibility at latent nuclear factor κB (NF-κB) enhancers. Pdx1 hypomorphic mice exhibited de-repression of NF-κB and impaired glucose tolerance at night. Three-dimensional analyses in tandem with chromatin immunoprecipitation (ChIP) sequencing revealed that PDX1 silences NF-κB at circadian and inflammatory enhancers through long-range chromatin contacts involving SIN3A. Conversely, Bmal1 ablation in β cells disrupted genome-wide PDX1 and NF-κB DNA binding. Finally, antagonizing the interleukin (IL)-1β receptor, an NF-κB target, improved insulin secretion in Pdx1 hypomorphic islets. Our studies reveal functional subtypes of single β cells defined by a gradient in PDX1 activity and identify NF-κB as a target for insulinotropic therapy.
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Affiliation(s)
- Benjamin J Weidemann
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Biliana Marcheva
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Mikoto Kobayashi
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Chiaki Omura
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Marsha V Newman
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Yumiko Kobayashi
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Nathan J Waldeck
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Mark Perelis
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Ionis Pharmaceuticals, Carlsbad, CA 92010, USA
| | - Louise Lantier
- Vanderbilt-NIH Mouse Metabolic Phenotyping Center, Nashville, TN 37232, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Owen P McGuinness
- Vanderbilt-NIH Mouse Metabolic Phenotyping Center, Nashville, TN 37232, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Kathryn Moynihan Ramsey
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Roland W Stein
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Joseph Bass
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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Sato F, Bhawal UK, Oikawa K, Muragaki Y. Loss of Dec1 inhibits alcohol-induced hepatic lipid accumulation and circadian rhythm disorder. BMC Mol Cell Biol 2024; 25:1. [PMID: 38166556 PMCID: PMC10763066 DOI: 10.1186/s12860-023-00497-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 12/18/2023] [Indexed: 01/04/2024] Open
Abstract
Chronic alcohol exposure increases liver damage such as lipid accumulation and hepatitis, resulting in hepatic cirrhosis. Chronic alcohol intake is known to disturb circadian rhythms in humans and animals. DEC1, a basic helix-loop-helix transcription factor, plays an important role in the circadian rhythm, inflammation, immune responses, and tumor progression. We have previously shown that Dec1 deficiency inhibits stresses such as periodontal inflammation and perivascular fibrosis of the heart. However, the significance of Dec1 deficiency in chronic alcohol consumption remains unclear. In the present study, we investigated whether the biological stress caused by chronic alcohol intake is inhibited in Dec1 knockout mice. We treated control and Dec1 knockout mice for three months by providing free access to 10% alcohol. The Dec1 knockout mice consumed more alcohol than control mice, however, we observed severe hepatic lipid accumulation and circadian rhythm disturbance in control mice. In contrast, Dec1 knockout mice exhibited little effect on these outcomes. We also investigated the expression of peroxisome proliferator-activated receptors (PPARs) and AMP-activated protein kinase (AMPK), which are involved in the regulation of fatty acid metabolism. Immunohistochemical analysis revealed increases of phosphorylation AMPK and PPARa but decreases PPARg in Dec1 knockout mice compared to that in control mice. This indicates a molecular basis for the inhibition of hepatic lipid accumulation in alcohol-treated Dec1 knockout mice. These results suggest a novel function of Dec1 in alcohol-induced hepatic lipid accumulation and circadian rhythm disorders.
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Affiliation(s)
- Fuyuki Sato
- Department of Diagnostic Pathology, Shizuoka Cancer Center, Sunto-gun, 411-8777, Japan.
- Department of Pathology, Wakayama Medical University School of Medicine, Wakayama, 641- 8509, Japan.
| | - Ujjal K Bhawal
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Chiba, 271-8587, Japan
- Center for Global Health Research , Saveetha Medical College and Hospitals , Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, India
| | - Kosuke Oikawa
- Department of Pathology, Wakayama Medical University School of Medicine, Wakayama, 641- 8509, Japan
| | - Yasuteru Muragaki
- Department of Pathology, Wakayama Medical University School of Medicine, Wakayama, 641- 8509, Japan
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48
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Engin A. Misalignment of Circadian Rhythms in Diet-Induced Obesity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1460:27-71. [PMID: 39287848 DOI: 10.1007/978-3-031-63657-8_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
The biological clocks of the circadian timing system coordinate cellular and physiological processes and synchronize them with daily cycles. While the central clock in the suprachiasmatic nucleus (SCN) is mainly synchronized by the light/dark cycles, the peripheral clocks react to other stimuli, including the feeding/fasting state, nutrients, sleep-wake cycles, and physical activity. During the disruption of circadian rhythms due to genetic mutations or social and occupational obligations, incorrect arrangement between the internal clock system and environmental rhythms leads to the development of obesity. Desynchronization between the central and peripheral clocks by altered timing of food intake and diet composition leads to uncoupling of the peripheral clocks from the central pacemaker and to the development of metabolic disorders. The strong coupling of the SCN to the light-dark cycle creates a situation of misalignment when food is ingested during the "wrong" time of day. Food-anticipatory activity is mediated by a self-sustained circadian timing, and its principal component is a food-entrainable oscillator. Modifying the time of feeding alone greatly affects body weight, whereas ketogenic diet (KD) influences circadian biology, through the modulation of clock gene expression. Night-eating behavior is one of the causes of circadian disruption, and night eaters have compulsive and uncontrolled eating with severe obesity. By contrast, time-restricted eating (TRE) restores circadian rhythms through maintaining an appropriate daily rhythm of the eating-fasting cycle. The hypothalamus has a crucial role in the regulation of energy balance rather than food intake. While circadian locomotor output cycles kaput (CLOCK) expression levels increase with high-fat diet-induced obesity, peroxisome proliferator-activated receptor-alpha (PPARα) increases the transcriptional level of brain and muscle aryl hydrocarbon receptor nuclear translocator (ARNT)-like 1 (BMAL1) in obese subjects. In this context, effective timing of chronotherapies aiming to correct SCN-driven rhythms depends on an accurate assessment of the SCN phase. In fact, in a multi-oscillator system, local rhythmicity and its disruption reflects the disruption of either local clocks or central clocks, thus imposing rhythmicity on those local tissues, whereas misalignment of peripheral oscillators is due to exosome-based intercellular communication.Consequently, disruption of clock genes results in dyslipidemia, insulin resistance, and obesity, while light exposure during the daytime, food intake during the daytime, and sleeping during the biological night promote circadian alignment between the central and peripheral clocks. Thus, shift work is associated with an increased risk of obesity, diabetes, and cardiovascular diseases because of unusual eating times as well as unusual light exposure and disruption of the circadian rhythm.
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Affiliation(s)
- Atilla Engin
- Faculty of Medicine, Department of General Surgery, Gazi University, Besevler, Ankara, Turkey.
- Mustafa Kemal Mah. 2137. Sok. 8/14, 06520, Cankaya, Ankara, Turkey.
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49
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Lee DY, Jung I, Park SY, Yu JH, Seo JA, Kim KJ, Kim NH, Yoo HJ, Kim SG, Choi KM, Baik SH, Kim NH. Attention to Innate Circadian Rhythm and the Impact of Its Disruption on Diabetes. Diabetes Metab J 2024; 48:37-52. [PMID: 38173377 PMCID: PMC10850272 DOI: 10.4093/dmj.2023.0193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/16/2023] [Indexed: 01/05/2024] Open
Abstract
Novel strategies are required to reduce the risk of developing diabetes and/or clinical outcomes and complications of diabetes. In this regard, the role of the circadian system may be a potential candidate for the prevention of diabetes. We reviewed evidence from animal, clinical, and epidemiological studies linking the circadian system to various aspects of the pathophysiology and clinical outcomes of diabetes. The circadian clock governs genetic, metabolic, hormonal, and behavioral signals in anticipation of cyclic 24-hour events through interactions between a "central clock" in the suprachiasmatic nucleus and "peripheral clocks" in the whole body. Currently, circadian rhythmicity in humans can be subjectively or objectively assessed by measuring melatonin and glucocorticoid levels, core body temperature, peripheral blood, oral mucosa, hair follicles, rest-activity cycles, sleep diaries, and circadian chronotypes. In this review, we summarized various circadian misalignments, such as altered light-dark, sleep-wake, rest-activity, fasting-feeding, shift work, evening chronotype, and social jetlag, as well as mutations in clock genes that could contribute to the development of diabetes and poor glycemic status in patients with diabetes. Targeting critical components of the circadian system could deliver potential candidates for the treatment and prevention of type 2 diabetes mellitus in the future.
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Affiliation(s)
- Da Young Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Inha Jung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - So Young Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Ji Hee Yu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Ji A Seo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kyeong Jin Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Nam Hoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hye Jin Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sin Gon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sei Hyun Baik
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Nan Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
- BK21 FOUR R&E Center for Learning Health Systems, Korea University, Seoul, Korea
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Thoré ESJ, Aulsebrook AE, Brand JA, Almeida RA, Brodin T, Bertram MG. Time is of the essence: The importance of considering biological rhythms in an increasingly polluted world. PLoS Biol 2024; 22:e3002478. [PMID: 38289905 PMCID: PMC10826942 DOI: 10.1371/journal.pbio.3002478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
Biological rhythms have a crucial role in shaping the biology and ecology of organisms. Light pollution is known to disrupt these rhythms, and evidence is emerging that chemical pollutants can cause similar disruption. Conversely, biological rhythms can influence the effects and toxicity of chemicals. Thus, by drawing insights from the extensive study of biological rhythms in biomedical and light pollution research, we can greatly improve our understanding of chemical pollution. This Essay advocates for the integration of biological rhythmicity into chemical pollution research to gain a more comprehensive understanding of how chemical pollutants affect wildlife and ecosystems. Despite historical barriers, recent experimental and technological advancements now facilitate the integration of biological rhythms into ecotoxicology, offering unprecedented, high-resolution data across spatiotemporal scales. Recognizing the importance of biological rhythms will be essential for understanding, predicting, and mitigating the complex ecological repercussions of chemical pollution.
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Affiliation(s)
- Eli S. J. Thoré
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
- TRANSfarm—Science, Engineering, & Technology Group, KU Leuven, Lovenjoel, Belgium
- Department of Zoology, Stockholm University, Stockholm, Sweden
| | - Anne E. Aulsebrook
- Department of Ornithology, Max Planck Institute for Biological Intelligence, Seewiesen, Germany
| | - Jack A. Brand
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
- Institute of Zoology, Zoological Society of London, London, United Kingdom
| | - Rafaela A. Almeida
- Laboratory of Aquatic Ecology, Evolution, and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
| | - Tomas Brodin
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Michael G. Bertram
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
- Department of Zoology, Stockholm University, Stockholm, Sweden
- School of Biological Sciences, Monash University, Melbourne, Australia
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