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Xu Y, Jabbur ML, Mori T, Young JD, Johnson CH. Clocking out and letting go to unleash green biotech applications in a photosynthetic host. Proc Natl Acad Sci U S A 2024; 121:e2318690121. [PMID: 38739791 DOI: 10.1073/pnas.2318690121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/03/2024] [Indexed: 05/16/2024] Open
Abstract
Cyanobacteria are photosynthetic bacteria whose gene expression patterns are globally regulated by their circadian (daily) clocks. Due to their ability to use sunlight as their energy source, they are also attractive hosts for "green" production of pharmaceuticals, renewable fuels, and chemicals. However, despite the application of traditional genetic tools such as the identification of strong promoters to enhance the expression of heterologous genes, cyanobacteria have lagged behind other microorganisms such as Escherichia coli and yeast as economically efficient cell factories. The previous approaches have ignored large-scale constraints within cyanobacterial metabolic networks on transcription, predominantly the pervasive control of gene expression by the circadian (daily) clock. Here, we show that reprogramming gene expression by releasing circadian repressor elements in the transcriptional regulatory pathways coupled with inactivation of the central oscillating mechanism enables a dramatic enhancement of expression in cyanobacteria of heterologous genes encoding both catalytically active enzymes and polypeptides of biomedical significance.
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Affiliation(s)
- Yao Xu
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235
| | - Maria Luísa Jabbur
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235
| | - Tetsuya Mori
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235
| | - Jamey D Young
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235
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2
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Steponenaite A, Lalic T, Atkinson L, Tanday N, Brown L, Mathie A, Cader ZM, Lall GS. TASK-3, two-pore potassium channels, contribute to circadian rhythms in the electrical properties of the suprachiasmatic nucleus and play a role in driving stable behavioural photic entrainment. Chronobiol Int 2024:1-15. [PMID: 38757583 DOI: 10.1080/07420528.2024.2351515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Stable and entrainable physiological circadian rhythms are crucial for overall health and well-being. The suprachiasmatic nucleus (SCN), the primary circadian pacemaker in mammals, consists of diverse neuron types that collectively generate a circadian profile of electrical activity. However, the mechanisms underlying the regulation of endogenous neuronal excitability in the SCN remain unclear. Two-pore domain potassium channels (K2P), including TASK-3, are known to play a significant role in maintaining SCN diurnal homeostasis by inhibiting neuronal activity at night. In this study, we investigated the role of TASK-3 in SCN circadian neuronal regulation and behavioural photoentrainment using a TASK-3 global knockout mouse model. Our findings demonstrate the importance of TASK-3 in maintaining SCN hyperpolarization during the night and establishing SCN sensitivity to glutamate. Specifically, we observed that TASK-3 knockout mice lacked diurnal variation in resting membrane potential and exhibited altered glutamate sensitivity both in vivo and in vitro. Interestingly, despite these changes, the mice lacking TASK-3 were still able to maintain relatively normal circadian behaviour.
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Affiliation(s)
| | - Tatjana Lalic
- Translational Molecular Neuroscience Group, University of Oxford, Oxford, UK
| | | | - Neil Tanday
- Medway School of Pharmacy, University of Kent, Kent, UK
| | - Lorna Brown
- Medway School of Pharmacy, University of Kent, Kent, UK
| | | | - Zameel M Cader
- Translational Molecular Neuroscience Group, University of Oxford, Oxford, UK
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3
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Okyar A, Ozturk Civelek D, Akyel YK, Surme S, Pala Kara Z, Kavakli IH. The role of the circadian timing system on drug metabolism and detoxification: an update. Expert Opin Drug Metab Toxicol 2024. [PMID: 38753451 DOI: 10.1080/17425255.2024.2356167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
INTRODUCTION The 24-hour variations in drug absorption, distribution, metabolism, and elimination, collectively known as pharmacokinetics, are fundamentally influenced by rhythmic physiological processes regulated by the molecular clock. Recent advances have elucidated the intricacies of the circadian timing system and the molecular interplay between biological clocks, enzymes and transporters in preclinical level. AREA COVERED Circadian rhythm of the drug metabolizing enzymes and carrier efflux functions possess a major role for drug metabolism and detoxification. The efflux and metabolism function of intestines and liver seems important. The investigations revealed that the ABC and SLC transporter families, along with cytochrome p-450 systems in the intestine, liver, and kidney, play a dominant role in the circadian detoxification of drugs. Additionally, the circadian control of efflux by the blood-brain barrier is also discussed. EXPERT OPINION The influence of the circadian timing system on drug pharmacokinetics significantly impacts the efficacy, adverse effects, and toxicity profiles of various drugs. Moreover, the emergence of sex-related circadian changes in the metabolism and detoxification processes has underscored the importance of considering gender-specific differences in drug tolerability and pharmacology. A better understanding of coupling between central clock and circadian metabolism/transport contributes to the development of more rational drug utilization and the implementation of chronotherapy applications.
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Affiliation(s)
- Alper Okyar
- Department of Pharmacology, Istanbul University Faculty of Pharmacy, Istanbul, Turkiye
| | - Dilek Ozturk Civelek
- Department of Pharmacology, Faculty of Pharmacy, Bezmialem Vakif University, Istanbul, Turkiye
| | - Yasemin Kubra Akyel
- Department of Medical Pharmacology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina, Chapel Hill, NC
| | - Saliha Surme
- Molecular Biology and Genetics, Koc University, Istanbul, Türkiye
- Chemical and Biological Engineering, Koc University, Istanbul, Türkiye
| | - Zeliha Pala Kara
- Department of Pharmacology, Istanbul University Faculty of Pharmacy, Istanbul, Turkiye
| | - I Halil Kavakli
- Molecular Biology and Genetics, Koc University, Istanbul, Türkiye
- Chemical and Biological Engineering, Koc University, Istanbul, Türkiye
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4
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Abstract
Studies of the starlet sea anemone provide important insights into the early evolution of the circadian clock in animals.
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Affiliation(s)
- Erica R Kwiatkowski
- MD/PhD graduate program, University of Massachusetts Chan Medical SchoolWorcesterUnited States
| | - Patrick Emery
- Department of Neurobiology, University of Massachusetts Chan Medical SchoolWorcesterUnited States
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5
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Duan J, Ngo MN, Karri SS, Tsoi LC, Gudjonsson JE, Shahbaba B, Lowengrub J, Andersen B. tauFisher predicts circadian time from a single sample of bulk and single-cell pseudobulk transcriptomic data. Nat Commun 2024; 15:3840. [PMID: 38714698 PMCID: PMC11076472 DOI: 10.1038/s41467-024-48041-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 04/16/2024] [Indexed: 05/10/2024] Open
Abstract
As the circadian clock regulates fundamental biological processes, disrupted clocks are often observed in patients and diseased tissues. Determining the circadian time of the patient or the tissue of focus is essential in circadian medicine and research. Here we present tauFisher, a computational pipeline that accurately predicts circadian time from a single transcriptomic sample by finding correlations between rhythmic genes within the sample. We demonstrate tauFisher's performance in adding timestamps to both bulk and single-cell transcriptomic samples collected from multiple tissue types and experimental settings. Application of tauFisher at a cell-type level in a single-cell RNAseq dataset collected from mouse dermal skin implies that greater circadian phase heterogeneity may explain the dampened rhythm of collective core clock gene expression in dermal immune cells compared to dermal fibroblasts. Given its robustness and generalizability across assay platforms, experimental setups, and tissue types, as well as its potential application in single-cell RNAseq data analysis, tauFisher is a promising tool that facilitates circadian medicine and research.
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Affiliation(s)
- Junyan Duan
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA, USA
- The NSF-Simons Center for Multiscale Cell Fate Research, University of California Irvine, Irvine, CA, USA
| | - Michelle N Ngo
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA, USA
- The NSF-Simons Center for Multiscale Cell Fate Research, University of California Irvine, Irvine, CA, USA
| | - Satya Swaroop Karri
- Department of Biological Chemistry, School of Medicine, University of California Irvine, Irvine, CA, USA
| | - Lam C Tsoi
- Department of Dermatology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
- Department of Computational Medicine and Bioinformatics, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, USA
- Mary H Weiser Food Allergy Center, University of Michigan, Ann Arbor, MI, USA
| | - Johann E Gudjonsson
- Department of Dermatology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
- Mary H Weiser Food Allergy Center, University of Michigan, Ann Arbor, MI, USA
| | - Babak Shahbaba
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA, USA.
- Department of Statistics, University of California Irvine, Irvine, CA, USA.
| | - John Lowengrub
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA, USA.
- Department of Mathematics, University of California, Irvine, CA, USA.
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA.
| | - Bogi Andersen
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA, USA.
- Department of Biological Chemistry, School of Medicine, University of California Irvine, Irvine, CA, USA.
- Department of Medicine, Division of Endocrinology, School of Medicine, University of California Irvine, Irvine, CA, USA.
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6
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Kajimura Y, Taguchi A, Nagao Y, Yamamoto K, Masuda K, Shibata K, Asaoka Y, Furutani-Seiki M, Tanizawa Y, Ohta Y. E4BP4 in macrophages induces an anti-inflammatory phenotype that ameliorates the severity of colitis. Commun Biol 2024; 7:527. [PMID: 38714733 PMCID: PMC11076557 DOI: 10.1038/s42003-024-06099-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 03/22/2024] [Indexed: 05/10/2024] Open
Abstract
Macrophages are versatile cells of the innate immune system that work by altering their pro- or anti-inflammatory features. Their dysregulation leads to inflammatory disorders such as inflammatory bowel disease. We show that macrophage-specific upregulation of the clock output gene and transcription factor E4BP4 reduces the severity of colitis in mice. RNA-sequencing and single-cell analyses of macrophages revealed that increased expression of E4BP4 leads to an overall increase in expression of anti-inflammatory genes including Il4ra with a concomitant reduction in pro-inflammatory gene expression. In contrast, knockout of E4BP4 in macrophages leads to increased proinflammatory gene expression and decreased expression of anti-inflammatory genes. ChIP-seq and ATAC-seq analyses further identified Il4ra as a target of E4BP4, which drives anti-inflammatory polarization in macrophages. Together, these results reveal a critical role for E4BP4 in regulating macrophage inflammatory phenotypes and resolving inflammatory bowel diseases.
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Affiliation(s)
- Yasuko Kajimura
- Division of Endocrinology, Metabolism, Hematological Science and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University, Graduate School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
| | - Akihiko Taguchi
- Division of Endocrinology, Metabolism, Hematological Science and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University, Graduate School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan.
| | - Yuko Nagao
- Division of Endocrinology, Metabolism, Hematological Science and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University, Graduate School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
| | - Kaoru Yamamoto
- Division of Endocrinology, Metabolism, Hematological Science and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University, Graduate School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
| | - Konosuke Masuda
- Division of Endocrinology, Metabolism, Hematological Science and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University, Graduate School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
| | - Kensuke Shibata
- Department of Microbiology and Immunology, Yamaguchi University, School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, 565-0871, Japan
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yoichi Asaoka
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University, School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
| | - Makoto Furutani-Seiki
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University, School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
| | - Yukio Tanizawa
- Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8511, Japan
| | - Yasuharu Ohta
- Division of Endocrinology, Metabolism, Hematological Science and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University, Graduate School of Medicine, 1-1-1, Minami Kogushi, Ube, 755-8505, Japan
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7
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Bandyopadhyay A, Sengupta A, Elvitigala T, Pakrasi HB. Endogenous clock-mediated regulation of intracellular oxygen dynamics is essential for diazotrophic growth of unicellular cyanobacteria. Nat Commun 2024; 15:3712. [PMID: 38697963 PMCID: PMC11065991 DOI: 10.1038/s41467-024-48039-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/16/2024] [Indexed: 05/05/2024] Open
Abstract
The discovery of nitrogen fixation in unicellular cyanobacteria provided the first clues for the existence of a circadian clock in prokaryotes. However, recalcitrance to genetic manipulation barred their use as model systems for deciphering the clock function. Here, we explore the circadian clock in the now genetically amenable Cyanothece 51142, a unicellular, nitrogen-fixing cyanobacterium. Unlike non-diazotrophic clock models, Cyanothece 51142 exhibits conspicuous self-sustained rhythms in various discernable phenotypes, offering a platform to directly study the effects of the clock on the physiology of an organism. Deletion of kaiA, an essential clock component in the cyanobacterial system, impacted the regulation of oxygen cycling and hindered nitrogenase activity. Our findings imply a role for the KaiA component of the clock in regulating the intracellular oxygen dynamics in unicellular diazotrophic cyanobacteria and suggest that its addition to the KaiBC clock was likely an adaptive strategy that ensured optimal nitrogen fixation as microbes evolved from an anaerobic to an aerobic atmosphere under nitrogen constraints.
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Affiliation(s)
| | - Annesha Sengupta
- Department of Biology, Washington University, St. Louis, MO, USA
- Department of Chemical Engineering, University of Toronto, Toronto, ON, Canada
| | - Thanura Elvitigala
- Department of Biology, Washington University, St. Louis, MO, USA
- General Motors Research and Development, Warren, MI, 48092, USA
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8
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Hoyniak CP, Whalen DJ, Luby JL, Barch DM, Miller JP, Zhao P, Triplett RL, Ju YE, Smyser CD, Warner B, Rogers CE, Herzog ED, England SK. Sleep and circadian rhythms during pregnancy, social disadvantage, and alterations in brain development in neonates. Dev Sci 2024; 27:e13456. [PMID: 37902111 PMCID: PMC10997484 DOI: 10.1111/desc.13456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 09/26/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023]
Abstract
Pregnant women in poverty may be especially likely to experience sleep and circadian rhythm disturbances, which may have downstream effects on fetal neurodevelopment. However, the associations between sleep and circadian rhythm disturbances, social disadvantage during pregnancy, and neonatal brain structure remains poorly understood. The current study explored the association between maternal sleep and circadian rhythm disturbances during pregnancy and neonatal brain outcomes, examining sleep and circadian rhythm disturbances as a mediator of the effect of social disadvantage during pregnancy on infant structural brain outcomes. The study included 148 mother-infant dyads, recruited during early pregnancy, who had both actigraphy and neuroimaging data. Mothers' sleep was assessed throughout their pregnancy using actigraphy, and neonates underwent brain magnetic resonance imaging in the first weeks of life. Neonatal structural brain outcomes included cortical gray matter, subcortical gray matter, and white matter volumes along with a measure of the total surface area of the cortex. Neonates of mothers who experienced greater inter-daily deviations in sleep duration had smaller total cortical gray and white matter volumes and reduced cortical surface areas. Neonates of mothers who had higher levels of circadian misalignment and later sleep timing during pregnancy showed smaller subcortical gray matter volumes. Inter-daily deviations in sleep duration during pregnancy mediated the association between maternal social disadvantage and neonatal structural brain outcomes. Findings highlight the importance of regularity and rhythmicity in sleep schedules during pregnancy and bring to light the role of chronodisruption as a potential mechanism underlying the deleterious neurodevelopmental effects of prenatal adversity. RESEARCH HIGHLIGHTS: Social disadvantage was associated with sleep and circadian rhythm disturbances during pregnancy, including later sleep schedules, increased variability in sleep duration, circadian misalignment, and a higher proportion of the sleep period spent awake. Maternal sleep and circadian rhythm disturbances during pregnancy were associated with decreased brain volume and reduced cortical surface area in neonates. Maternal inter-daily deviations in sleep duration during pregnancy mediated the association between social disadvantage and neonatal brain volume and cortical surface area.
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Affiliation(s)
- Caroline P Hoyniak
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St Louis, USA
- Center on Biological Rhythms and Sleep, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Diana J Whalen
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St Louis, USA
- Center on Biological Rhythms and Sleep, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Joan L Luby
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St Louis, USA
- Center on Biological Rhythms and Sleep, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Deanna M Barch
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St Louis, USA
- The Program in Neuroscience, Washington University in St. Louis, St Louis, USA
- Department of Psychological and Brain Sciences, Washington University in St. Louis, St Louis, USA
- Department of Radiology, Washington University School of Medicine in St. Louis, St Louis, USA
| | - J Philip Miller
- Department of Biostatistics, Washington University in St. Louis, St Louis, USA
| | - Peinan Zhao
- Department of Obstetrics and Gynecology, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Regina L Triplett
- Department of Neurology, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Yo-El Ju
- Center on Biological Rhythms and Sleep, Washington University School of Medicine in St. Louis, St Louis, USA
- Department of Neurology, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Christopher D Smyser
- Department of Radiology, Washington University School of Medicine in St. Louis, St Louis, USA
- Department of Neurology, Washington University School of Medicine in St. Louis, St Louis, USA
- Department of Pediatrics, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Barbara Warner
- Department of Pediatrics, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Cynthia E Rogers
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St Louis, USA
- Department of Pediatrics, Washington University School of Medicine in St. Louis, St Louis, USA
| | - Erik D Herzog
- Center on Biological Rhythms and Sleep, Washington University School of Medicine in St. Louis, St Louis, USA
- Department of Biology, Washington University in St. Louis, St Louis, USA
| | - Sarah K England
- Center on Biological Rhythms and Sleep, Washington University School of Medicine in St. Louis, St Louis, USA
- Department of Obstetrics and Gynecology, Washington University School of Medicine in St. Louis, St Louis, USA
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9
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Patlin BH, Mok H, Arra M, Haspel JA. Circadian rhythms in solid organ transplantation. J Heart Lung Transplant 2024; 43:849-857. [PMID: 38310995 PMCID: PMC11070314 DOI: 10.1016/j.healun.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/17/2024] [Accepted: 01/29/2024] [Indexed: 02/06/2024] Open
Abstract
Circadian rhythms are daily cycles in physiology that can affect medical interventions. This review considers how these rhythms may relate to solid organ transplantation. It begins by summarizing the mechanism for circadian rhythm generation known as the molecular clock, and basic research connecting the clock to biological activities germane to organ acceptance. Next follows a review of clinical evidence relating time of day to adverse transplantation outcomes. The concluding section discusses knowledge gaps and practical areas where applying circadian biology might improve transplantation success.
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Affiliation(s)
- Brielle H Patlin
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Huram Mok
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Monaj Arra
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Jeffrey A Haspel
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri.
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10
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Speksnijder EM, Bisschop PH, Siegelaar SE, Stenvers DJ, Kalsbeek A. Circadian desynchrony and glucose metabolism. J Pineal Res 2024; 76:e12956. [PMID: 38695262 DOI: 10.1111/jpi.12956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/02/2024] [Accepted: 04/15/2024] [Indexed: 05/09/2024]
Abstract
The circadian timing system controls glucose metabolism in a time-of-day dependent manner. In mammals, the circadian timing system consists of the main central clock in the bilateral suprachiasmatic nucleus (SCN) of the anterior hypothalamus and subordinate clocks in peripheral tissues. The oscillations produced by these different clocks with a period of approximately 24-h are generated by the transcriptional-translational feedback loops of a set of core clock genes. Glucose homeostasis is one of the daily rhythms controlled by this circadian timing system. The central pacemaker in the SCN controls glucose homeostasis through its neural projections to hypothalamic hubs that are in control of feeding behavior and energy metabolism. Using hormones such as adrenal glucocorticoids and melatonin and the autonomic nervous system, the SCN modulates critical processes such as glucose production and insulin sensitivity. Peripheral clocks in tissues, such as the liver, muscle, and adipose tissue serve to enhance and sustain these SCN signals. In the optimal situation all these clocks are synchronized and aligned with behavior and the environmental light/dark cycle. A negative impact on glucose metabolism becomes apparent when the internal timing system becomes disturbed, also known as circadian desynchrony or circadian misalignment. Circadian desynchrony may occur at several levels, as the mistiming of light exposure or sleep will especially affect the central clock, whereas mistiming of food intake or physical activity will especially involve the peripheral clocks. In this review, we will summarize the literature investigating the impact of circadian desynchrony on glucose metabolism and how it may result in the development of insulin resistance. In addition, we will discuss potential strategies aimed at reinstating circadian synchrony to improve insulin sensitivity and contribute to the prevention of type 2 diabetes.
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Affiliation(s)
- Esther M Speksnijder
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism (AGEM), Amsterdam, The Netherlands
| | - Peter H Bisschop
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism (AGEM), Amsterdam, The Netherlands
| | - Sarah E Siegelaar
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism (AGEM), Amsterdam, The Netherlands
| | - Dirk Jan Stenvers
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism (AGEM), Amsterdam, The Netherlands
- Department of Endocrinology and Metabolism, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Andries Kalsbeek
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology and Metabolism (AGEM), Amsterdam, The Netherlands
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands
- Laboratory of Endocrinology, Department of Clinical Chemistry, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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11
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Charlebois CM, Anderson DN, Smith EH, Davis TS, Newman BJ, Peters AY, Arain AM, Dorval AD, Rolston JD, Butson CR. Circadian changes in aperiodic activity are correlated with seizure reduction in patients with mesial temporal lobe epilepsy treated with responsive neurostimulation. Epilepsia 2024; 65:1360-1373. [PMID: 38517356 DOI: 10.1111/epi.17938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/23/2024]
Abstract
OBJECTIVES Responsive neurostimulation (RNS) is an established therapy for drug-resistant epilepsy that delivers direct electrical brain stimulation in response to detected epileptiform activity. However, despite an overall reduction in seizure frequency, clinical outcomes are variable, and few patients become seizure-free. The aim of this retrospective study was to evaluate aperiodic electrophysiological activity, associated with excitation/inhibition balance, as a novel electrographic biomarker of seizure reduction to aid early prognostication of the clinical response to RNS. METHODS We identified patients with intractable mesial temporal lobe epilepsy who were implanted with the RNS System between 2015 and 2021 at the University of Utah. We parameterized the neural power spectra from intracranial RNS System recordings during the first 3 months following implantation into aperiodic and periodic components. We then correlated circadian changes in aperiodic and periodic parameters of baseline neural recordings with seizure reduction at the most recent follow-up. RESULTS Seizure reduction was correlated significantly with a patient's average change in the day/night aperiodic exponent (r = .50, p = .016, n = 23 patients) and oscillatory alpha power (r = .45, p = .042, n = 23 patients) across patients for baseline neural recordings. The aperiodic exponent reached its maximum during nighttime hours (12 a.m. to 6 a.m.) for most responders (i.e., patients with at least a 50% reduction in seizures). SIGNIFICANCE These findings suggest that circadian modulation of baseline broadband activity is a biomarker of response to RNS early during therapy. This marker has the potential to identify patients who are likely to respond to mesial temporal RNS. Furthermore, we propose that less day/night modulation of the aperiodic exponent may be related to dysfunction in excitation/inhibition balance and its interconnected role in epilepsy, sleep, and memory.
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Affiliation(s)
- Chantel M Charlebois
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
- Scientific Computing & Imaging Institute, University of Utah, Salt Lake City, Utah, USA
| | - Daria Nesterovich Anderson
- Department of Neurosurgery, University of Utah, Salt Lake City, Utah, USA
- Department of Pharmacology & Toxicology, University of Utah, Salt Lake City, Utah, USA
- School of Biomedical Engineering, University of Sydney, Darlington, New South Wales, Australia
| | - Elliot H Smith
- Department of Neurosurgery, University of Utah, Salt Lake City, Utah, USA
| | - Tyler S Davis
- Department of Neurosurgery, University of Utah, Salt Lake City, Utah, USA
| | - Blake J Newman
- Department of Neurology, University of Utah, Salt Lake City, Utah, USA
| | - Angela Y Peters
- Department of Neurology, University of Utah, Salt Lake City, Utah, USA
| | - Amir M Arain
- Department of Neurology, University of Utah, Salt Lake City, Utah, USA
| | - Alan D Dorval
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
- Scientific Computing & Imaging Institute, University of Utah, Salt Lake City, Utah, USA
| | - John D Rolston
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA
- Department of Neurosurgery, Brigham & Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher R Butson
- Scientific Computing & Imaging Institute, University of Utah, Salt Lake City, Utah, USA
- Norman Fixel Institute for Neurological Diseases, University of Florida, Gainesville, Florida, USA
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12
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Fink AM. Shift Work Sleep Disorder and Mental Health: An Integrative Review of Neurobiological, Sociological, and Psychological Perspectives With Public Policy Implications. Policy Polit Nurs Pract 2024; 25:94-102. [PMID: 38509807 DOI: 10.1177/15271544241238752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Shift workers support critical 24-hr operations; their health can be impaired by disrupted circadian rhythms and dysfunctional sleep. Shift work sleep disorder (SWSD) is a prevalent condition with significant psychological consequences. Nurse leaders have not yet implemented effective policies to prevent SWSD and optimize shift workers' mental health. The purpose of this integrative review was to examine research about SWSD within the context of neurobiological, sociological, and psychological perspectives that can inform policy changes. The Centers for Disease Control and Prevention Policy Analytic Framework was used to determine the priority recommendations. A search of three databases provided 19 research articles about SWSD and mental health, which illustrated how SWSD is common around the world in many occupations. Backward-rotating schedules and quick returns were risk factors for SWSD. In addition, SWSD was associated with circadian languidity, sleep reactivity, depressive symptoms, and anxiety. Collectively, the studies lacked objective measures of sleep and circadian rhythms, which has hindered the ability to devise interventions that will target the neurobiological causes of SWSD. The research also lacked attention to important sociological factors, such as workers' pay and benefits. Using these findings, nurse leaders can contribute to public policy reforms that increase funding for more rigorous SWSD research. Lawmakers should be advised by nurse leaders to enforce new regulations that provide incentives for employers to create healthier workplaces, such as prohibiting the overuse of schedules that make employees vulnerable to SWSD and providing funds for interventions to prevent SWSD and support mental health.
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Affiliation(s)
- Anne M Fink
- Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois Chicago, Chicago, USA
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13
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Zhou S, Li X, Liang F, Ji G, Lv K, Yuan Y, Zhao Y, Yan N, Zhang C, Cai S, Zhang S, Liu X, Song B, Qu L. Mitophagy Regulates the Circadian Rhythms by Degrading NR1D1 in Simulated Microgravity and Isolation Environments. Int J Mol Sci 2024; 25:4853. [PMID: 38732079 PMCID: PMC11084518 DOI: 10.3390/ijms25094853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Long-term spaceflight is known to induce disruptions in circadian rhythms, which are driven by a central pacemaker located in the suprachiasmatic nucleus (SCN) of the hypothalamus, but the underlying molecular mechanisms remain unclear. Here, we developed a rat model that simulated microgravity and isolation environments through tail suspension and isolation (TSI). We found that the TSI environment imposed circadian disruptions to the core body temperature, heart rate, and locomotor-activity rhythms of rats, especially in the amplitude of these rhythms. In TSI model rats' SCNs, the core circadian gene NR1D1 showed higher protein but not mRNA levels along with decreased BMAL1 levels, which indicated that NR1D1 could be regulated through post-translational regulation. The autophagosome marker LC3 could directly bind to NR1D1 via the LC3-interacting region (LIR) motifs and induce the degradation of NR1D1 in a mitophagy-dependent manner. Defects in mitophagy led to the reversal of NR1D1 degradation, thereby suppressing the expression of BMAL1. Mitophagy deficiency and subsequent mitochondrial dysfunction were observed in the SCN of TSI models. Urolithin A (UA), a mitophagy activator, demonstrated an ability to enhance the amplitude of core body temperature, heart rate, and locomotor-activity rhythms by prompting mitophagy induction to degrade NR1D1. Cumulatively, our results demonstrate that mitophagy exerts circadian control by regulating NR1D1 degradation, revealing mitophagy as a potential target for long-term spaceflight as well as diseases with SCN circadian disruption.
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Affiliation(s)
- Sihai Zhou
- Department of Pathology and Forensics, Dalian Medical University, Dalian 116044, China;
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Xiaopeng Li
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Fengji Liang
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Guohua Ji
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Ke Lv
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Yanhong Yuan
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Yujie Zhao
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Na Yan
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Chuanjie Zhang
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Shiou Cai
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Shuhui Zhang
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Xu Liu
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
| | - Bo Song
- Department of Pathology and Forensics, Dalian Medical University, Dalian 116044, China;
| | - Lina Qu
- State Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing 100094, China; (X.L.); (F.L.); (G.J.); (K.L.); (Y.Y.); (Y.Z.); (N.Y.); (C.Z.); (S.C.); (X.L.)
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14
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Zeng Y, Guo Z, Wu M, Chen F, Chen L. Circadian rhythm regulates the function of immune cells and participates in the development of tumors. Cell Death Discov 2024; 10:199. [PMID: 38678017 PMCID: PMC11055927 DOI: 10.1038/s41420-024-01960-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/29/2024] Open
Abstract
Circadian rhythms are present in almost all cells and play a crucial role in regulating various biological processes. Maintaining a stable circadian rhythm is essential for overall health. Disruption of this rhythm can alter the expression of clock genes and cancer-related genes, and affect many metabolic pathways and factors, thereby affecting the function of the immune system and contributing to the occurrence and progression of tumors. This paper aims to elucidate the regulatory effects of BMAL1, clock and other clock genes on immune cells, and reveal the molecular mechanism of circadian rhythm's involvement in tumor and its microenvironment regulation. A deeper understanding of circadian rhythms has the potential to provide new strategies for the treatment of cancer and other immune-related diseases.
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Affiliation(s)
- Yuen Zeng
- Department of Immunology, School of Basic Medical Sciences, Air Force Medical University, Xi'an, China
| | - Zichan Guo
- Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Mengqi Wu
- Department of Immunology, School of Basic Medical Sciences, Air Force Medical University, Xi'an, China
| | - Fulin Chen
- Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Lihua Chen
- Department of Immunology, School of Basic Medical Sciences, Air Force Medical University, Xi'an, China.
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15
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Brendstrup-Brix K, Ulv Larsen SM, Lee HH, Knudsen GM. Perivascular space diffusivity and brain microstructural measures are associated with circadian time and sleep quality. J Sleep Res 2024:e14226. [PMID: 38676409 DOI: 10.1111/jsr.14226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 04/04/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
The glymphatic system is centred around brain cerebrospinal fluid flow and is enhanced during sleep, and the synaptic homeostasis hypothesis proposes that sleep acts on brain microstructure by selective synaptic downscaling. While so far primarily studied in animals, we here examine in humans if brain diffusivity and microstructure is related to time of day, sleep quality and cognitive performance. We use diffusion weighted images from 916 young healthy individuals, aged between 22 and 37 years, collected as part of the Human Connectome Project to assess diffusion tensor image analysis along the perivascular space index, white matter fractional anisotropy, intra-neurite volume fraction and extra-neurite mean diffusivity. Next, we examine if these measures are associated with circadian time of acquisition, the Pittsburgh Sleep Quality Index (high scores correspond to low sleep quality) and age-adjusted cognitive function total composite score. Consistent with expectations, we find that diffusion tensor image analysis along the perivascular space index and orbitofrontal grey matter extra-neurite mean diffusivity are negatively and white matter fractional anisotropy positively correlated with circadian time. Further, we find that grey matter intra-neurite volume fraction correlates positively with Pittsburgh Sleep Quality Index, and that this correlation is driven by sleep duration. Finally, we find positive correlations between grey matter intra-neurite volume fraction and cognitive function total composite score, as well as negative interaction effects between cognitive function total composite score and Pittsburgh Sleep Quality Index on grey matter intra-neurite volume fraction. Our findings propose that perivascular flow is under circadian control and that sleep downregulates the intra-neurite volume in healthy adults with positive impact on cognitive function.
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Affiliation(s)
- Kristoffer Brendstrup-Brix
- Neurobiology Research Unit, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sara Marie Ulv Larsen
- Neurobiology Research Unit, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Hong-Hsi Lee
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Gitte Moos Knudsen
- Neurobiology Research Unit, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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16
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Kikyo N. Circadian Regulation of Bone Remodeling. Int J Mol Sci 2024; 25:4717. [PMID: 38731934 PMCID: PMC11083221 DOI: 10.3390/ijms25094717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Adult bones are continuously remodeled by the balance between bone resorption by osteoclasts and subsequent bone formation by osteoblasts. Many studies have provided molecular evidence that bone remodeling is under the control of circadian rhythms. Circadian fluctuations have been reported in the serum and urine levels of bone turnover markers, such as digested collagen fragments and bone alkaline phosphatase. Additionally, the expressions of over a quarter of all transcripts in bones show circadian rhythmicity, including the genes encoding master transcription factors for osteoblastogenesis and osteoclastogenesis, osteogenic cytokines, and signaling pathway proteins. Serum levels of calcium, phosphate, parathyroid hormone, and calcitonin also display circadian rhythmicity. Finally, osteoblast- and osteoclast-specific knockout mice targeting the core circadian regulator gene Bmal1 show disrupted bone remodeling, although the results have not always been consistent. Despite these studies, however, establishing a direct link between circadian rhythms and bone remodeling in vivo remains a major challenge. It is nearly impossible to repeatedly collect bone materials from human subjects while following circadian changes. In addition, the differences in circadian gene regulation between diurnal humans and nocturnal mice, the main model organism, remain unclear. Filling the knowledge gap in the circadian regulation of bone remodeling could reveal novel regulatory mechanisms underlying many bone disorders including osteoporosis, genetic diseases, and fracture healing. This is also an important question for the basic understanding of how cell differentiation progresses under the influence of cyclically fluctuating environments.
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Affiliation(s)
- Nobuaki Kikyo
- Stem Cell Institute, Minneapolis, MN 55455, USA
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
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17
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Hoekstra MMB, Ness N, Badia-Soteras A, Brancaccio M. Bmal1 integrates circadian function and temperature sensing in the suprachiasmatic nucleus. Proc Natl Acad Sci U S A 2024; 121:e2316646121. [PMID: 38625943 PMCID: PMC11047078 DOI: 10.1073/pnas.2316646121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 03/22/2024] [Indexed: 04/18/2024] Open
Abstract
Circadian regulation and temperature dependency are important orchestrators of molecular pathways. How the integration between these two drivers is achieved, is not understood. We monitored circadian- and temperature-dependent effects on transcription dynamics of cold-response protein RNA Binding Motif 3 (Rbm3). Temperature changes in the mammalian master circadian pacemaker, the suprachiasmatic nucleus (SCN), induced Rbm3 transcription and regulated its circadian periodicity, whereas the core clock gene Per2 was unaffected. Rbm3 induction depended on a full Brain And Muscle ARNT-Like Protein 1 (Bmal1) complement: reduced Bmal1 erased Rbm3 responses and weakened SCN circuit resilience to temperature changes. By focusing on circadian and temperature dependency, we highlight weakened transmission between core clock and downstream pathways as a potential route for reduced circadian resilience.
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Affiliation(s)
- Marieke M. B. Hoekstra
- Department of Brain Science, Imperial College London, LondonW12 0NN, United Kingdom
- Department of Brain Sciences, United Kingdom Dementia Research Institute at Imperial College London, LondonW12 0NN, United Kingdom
| | - Natalie Ness
- Department of Brain Science, Imperial College London, LondonW12 0NN, United Kingdom
- Department of Brain Sciences, United Kingdom Dementia Research Institute at Imperial College London, LondonW12 0NN, United Kingdom
| | - Aina Badia-Soteras
- Department of Brain Science, Imperial College London, LondonW12 0NN, United Kingdom
- Department of Brain Sciences, United Kingdom Dementia Research Institute at Imperial College London, LondonW12 0NN, United Kingdom
| | - Marco Brancaccio
- Department of Brain Science, Imperial College London, LondonW12 0NN, United Kingdom
- Department of Brain Sciences, United Kingdom Dementia Research Institute at Imperial College London, LondonW12 0NN, United Kingdom
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18
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Gheorghe CE, Leigh SJ, Tofani GSS, Bastiaanssen TFS, Lyte JM, Gardellin E, Govindan A, Strain C, Martinez-Herrero S, Goodson MS, Kelley-Loughnane N, Cryan JF, Clarke G. The microbiota drives diurnal rhythms in tryptophan metabolism in the stressed gut. Cell Rep 2024; 43:114079. [PMID: 38613781 DOI: 10.1016/j.celrep.2024.114079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/09/2024] [Accepted: 03/22/2024] [Indexed: 04/15/2024] Open
Abstract
Chronic stress disrupts microbiota-gut-brain axis function and is associated with altered tryptophan metabolism, impaired gut barrier function, and disrupted diurnal rhythms. However, little is known about the effects of acute stress on the gut and how it is influenced by diurnal physiology. Here, we used germ-free and antibiotic-depleted mice to understand how microbiota-dependent oscillations in tryptophan metabolism would alter gut barrier function at baseline and in response to an acute stressor. Cecal metabolomics identified tryptophan metabolism as most responsive to a 15-min acute stressor, while shotgun metagenomics revealed that most bacterial species exhibiting rhythmicity metabolize tryptophan. Our findings highlight that the gastrointestinal response to acute stress is dependent on the time of day and the microbiome, with a signature of stress-induced functional alterations in the ileum and altered tryptophan metabolism in the colon.
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Affiliation(s)
- Cassandra E Gheorghe
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Sarah-Jane Leigh
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Gabriel S S Tofani
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Thomaz F S Bastiaanssen
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Joshua M Lyte
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Elisa Gardellin
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland
| | - Ashokkumar Govindan
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Teagasc Moorepark Food Research Centre, Fermoy Co, P61 C996 Cork, Ireland
| | - Conall Strain
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Teagasc Moorepark Food Research Centre, Fermoy Co, P61 C996 Cork, Ireland
| | - Sonia Martinez-Herrero
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Michael S Goodson
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45324, USA
| | - Nancy Kelley-Loughnane
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45324, USA
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland.
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19
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Basquin L, Maruani J, Leseur J, Mauries S, Bazin B, Pineau G, Henry C, Lejoyeux M, Geoffroy PA. Study of the different sleep disturbances during the prodromal phase of depression and mania in bipolar disorders. Bipolar Disord 2024. [PMID: 38653574 DOI: 10.1111/bdi.13429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
BACKGROUND One of the challenges in bipolar disorder (BD) lies in early detection of the illness and its recurrences, to improve prognosis. Sleep disturbances (SD) have been proposed as reliable predictive markers of conversion. While preliminary studies have explored the relationship between SD and the onset of mood episodes, the results remain heterogeneous and a few have specifically examined patients' perception of prodromal symptoms and their progression until the episode occurs. Identifying prodromes represents a crucial clinical challenge, as it enables early intervention, thereby reducing the severity of BD. Therefore, the objective of this study is to better characterize and evaluate the progressive nature of SD as prodromal symptoms of mood episodes, and patients' perception of it. METHODS Patients diagnosed with BD, either hospitalized or seeking treatment for a (hypo)manic or depressive episode benefited from standardized questionnaires, structured interviews, and self-report questionnaires to evaluate SD prior to the current episode, as well as sociodemographic and clinical information. RESULTS Out of the 41 patients included, 59% spontaneously reported SD prior to the episode, appearing 90 days before depression and 35 days before mania (pre-indexed/spontaneous reports: 51.22% insomnia complaints, 4.88% hypersomnolence complaints, 7.32% parasomnias, 2.44% sleep movements). After inquiry about specific SD, the percentage of patients reporting prodromal SD increased significantly to 83%, appearing 210 days before depression and 112.5 days before mania (post-indexed reports: 75.61% presented with insomnia complaints appearing 150 days before depression and 20 days before mania, 46.34% had hypersomnolence complaints appearing 60 days before depression, 43.9% had parasomnias appearing 210 days before depression and 22.5 days before mania, 36.59% had sleep movements appearing 120 days before depression and 150 days before mania). Of note, bruxism appeared in 35% of patients before mania, and restless legs syndrome in 20% of patients before depression. CONCLUSION This study highlights the very high prevalence of SD prior to a mood episode in patients with BD with differences between depressive and manic episodes. The more systematic screening of sleep alterations of the prodromal phase improved the recognition and characterization of different symptoms onset by patients. This underscores the need for precise questioning regarding sleep patterns in patients, to better identify the moment of transition toward a mood episode, referred to as "Chronos syndrome". The study emphasizes the importance of educating patients about the disorder and its sleep prodromal symptoms to facilitate early intervention and prevent recurrences.
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Affiliation(s)
- Louise Basquin
- Département de Psychiatrie et d'addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude Bernard, Paris, France
- NeuroDiderot, Inserm, FHU I2-D2, Université Paris Cité, Paris, France
| | - Julia Maruani
- Département de Psychiatrie et d'addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude Bernard, Paris, France
- NeuroDiderot, Inserm, FHU I2-D2, Université Paris Cité, Paris, France
- GHU Paris - Psychiatrie & Neurosciences, Paris, France
| | - Jeanne Leseur
- Département de Psychiatrie et d'addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude Bernard, Paris, France
| | - Sibylle Mauries
- Département de Psychiatrie et d'addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude Bernard, Paris, France
- NeuroDiderot, Inserm, FHU I2-D2, Université Paris Cité, Paris, France
- GHU Paris - Psychiatrie & Neurosciences, Paris, France
| | | | - Guillaume Pineau
- Département de Psychiatrie et d'addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude Bernard, Paris, France
| | - Chantal Henry
- GHU Paris - Psychiatrie & Neurosciences, Paris, France
- Department of Psychiatry, Service Hospitalo-Universitaire, GHU Paris Psychiatrie & Neurosciences, Paris, France
- Université de Paris, Paris, France
| | - Michel Lejoyeux
- Département de Psychiatrie et d'addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude Bernard, Paris, France
- NeuroDiderot, Inserm, FHU I2-D2, Université Paris Cité, Paris, France
- GHU Paris - Psychiatrie & Neurosciences, Paris, France
| | - Pierre A Geoffroy
- Département de Psychiatrie et d'addictologie, AP-HP, GHU Paris Nord, DMU Neurosciences, Hôpital Bichat - Claude Bernard, Paris, France
- NeuroDiderot, Inserm, FHU I2-D2, Université Paris Cité, Paris, France
- GHU Paris - Psychiatrie & Neurosciences, Paris, France
- CNRS UPR 3212, Institute for Cellular and Integrative Neurosciences, Strasbourg, France
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20
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Zhang R, Tomasi D, Shokri-Kojori E, Manza P, Demiral SB, Wang GJ, Volkow ND. Seasonality in regional brain glucose metabolism. Psychol Med 2024:1-9. [PMID: 38634486 DOI: 10.1017/s0033291724000436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
BACKGROUND Daylength and the rates of changes in daylength have been associated with seasonal fluctuations in psychiatric symptoms and in cognition and mood in healthy adults. However, variations in human brain glucose metabolism in concordance with seasonal changes remain under explored. METHODS In this cross-sectional study, we examined seasonal effects on brain glucose metabolism, which we measured using 18F-fluorodeoxyglucose-PET in 97 healthy participants. To maximize the sensitivity of regional effects, we computed relative metabolic measures by normalizing the regional measures to white matter metabolism. Additionally, we explored the role of rest-activity rhythms/sleep-wake activity measured with actigraphy in the seasonal variations of regional brain metabolic activity. RESULTS We found that seasonal variations of cerebral glucose metabolism differed across brain regions. Glucose metabolism in prefrontal regions increased with longer daylength and with greater day-to-day increases in daylength. The cuneus and olfactory bulb had the maximum and minimum metabolic values around the summer and winter solstice respectively (positively associated with daylength), whereas the temporal lobe, brainstem, and postcentral cortex showed maximum and minimum metabolic values around the spring and autumn equinoxes, respectively (positively associated with faster daylength gain). Longer daylength was associated with greater amplitude and robustness of diurnal activity rhythms suggesting circadian involvement. CONCLUSIONS The current findings advance our knowledge of seasonal patterns in a key indicator of brain function relevant for mood and cognition. These data could inform treatment interventions for psychiatric symptoms that peak at specific times of the year.
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Affiliation(s)
- Rui Zhang
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA
| | - Dardo Tomasi
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ehsan Shokri-Kojori
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA
| | - Peter Manza
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sukru Baris Demiral
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA
| | - Gene-Jack Wang
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nora D Volkow
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, USA
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21
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Koncevičius K, Nair A, Šveikauskaitė A, Šeštokaitė A, Kazlauskaitė A, Dulskas A, Petronis A. Epigenetic age oscillates during the day. Aging Cell 2024:e14170. [PMID: 38638005 DOI: 10.1111/acel.14170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/20/2024] Open
Abstract
Since their introduction, epigenetic clocks have been extensively used in aging, human disease, and rejuvenation studies. In this article, we report an intriguing pattern: epigenetic age predictions display a 24-h periodicity. We tested a circadian blood sample collection using 17 epigenetic clocks addressing different aspects of aging. Thirteen clocks exhibited significant oscillations with the youngest and oldest age estimates around midnight and noon, respectively. In addition, daily oscillations were consistent with the changes of epigenetic age across different times of day observed in an independant populational dataset. While these oscillations can in part be attributed to variations in white blood cell type composition, cell count correction methods might not fully resolve the issue. Furthermore, some epigenetic clocks exhibited 24-h periodicity even in the purified fraction of neutrophils pointing at plausible contributions of intracellular epigenomic oscillations. Evidence for circadian variation in epigenetic clocks emphasizes the importance of the time-of-day for obtaining accurate estimates of epigenetic age.
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Affiliation(s)
- Karolis Koncevičius
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Akhil Nair
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
- The Krembil Family Epigenetics Laboratory, The Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Aušrinė Šveikauskaitė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Agnė Šeštokaitė
- Laboratory for Genetic Diagnostics, National Cancer Institute, Vilnius, Lithuania
| | - Auksė Kazlauskaitė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Audrius Dulskas
- Department of Abdominal and General Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania
- Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Artūras Petronis
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
- The Krembil Family Epigenetics Laboratory, The Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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22
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Yang H, Zhao G, Lu Y, Ma K, Gao X, She X, Zhu Y, Wang K, Du L, Wang Y, Xi Z, Cui B. Circadian disturbances by altering the light-dark cycle negatively affects hematopoietic function of bone marrow in mice. FASEB J 2024; 38:e23565. [PMID: 38558188 DOI: 10.1096/fj.202302233rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 02/22/2024] [Accepted: 03/06/2024] [Indexed: 04/04/2024]
Abstract
Circadian rhythms in metabolically active tissues are crucial for maintaining physical health. Circadian disturbance (CD) can cause various health issues, such as metabolic abnormalities and immune and cognitive dysfunctions. However, studies on the role of CD in immune cell development and differentiation, as well as the rhythmic expression of the core clock genes and their altered expression under CD, remain unclear. Therefore, we exposed C57bl/6j mice to repeated reversed light-dark cycles for 90 days to research the effects of CD on bone marrow (BM) hematopoietic function. We also researched the effects of CD on endogenous circadian rhythms, temporally dependent expression in peripheral blood and myeloid leukocytes, environmental homeostasis within BM, and circadian oscillations of hematopoietic-extrinsic cues. Our results confirmed that when the light and dark cycles around mice were frequently reversed, the circadian rhythmic expression of the two main circadian rhythm markers, the hypothalamic clock gene, and serum melatonin, was disturbed, indicating that the body was in a state of endogenous CD. Furthermore, CD altered the temporally dependent expression of peripheral blood and BM leukocytes and destroyed environmental homeostasis within the BM as well as circadian oscillations of hematopoietic-extrinsic cues, which may negatively affect BM hematopoiesis in mice. Collectively, these results demonstrate that circadian rhythms are vital for maintaining health and suggest that the association between CD and hematopoietic dysfunction warrants further investigation.
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Affiliation(s)
- Honglian Yang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Guojie Zhao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
- School of Public Health, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Yue Lu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Kefeng Ma
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Xiujie Gao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Xiaojun She
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Yingwen Zhu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Kun Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Lianqun Du
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Ying Wang
- School of Public Health, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Zhuge Xi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Bo Cui
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
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23
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de Zambotti M, Goldstein C, Cook J, Menghini L, Altini M, Cheng P, Robillard R. State of the science and recommendations for using wearable technology in sleep and circadian research. Sleep 2024; 47:zsad325. [PMID: 38149978 DOI: 10.1093/sleep/zsad325] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/21/2023] [Indexed: 12/28/2023] Open
Abstract
Wearable sleep-tracking technology is of growing use in the sleep and circadian fields, including for applications across other disciplines, inclusive of a variety of disease states. Patients increasingly present sleep data derived from their wearable devices to their providers and the ever-increasing availability of commercial devices and new-generation research/clinical tools has led to the wide adoption of wearables in research, which has become even more relevant given the discontinuation of the Philips Respironics Actiwatch. Standards for evaluating the performance of wearable sleep-tracking devices have been introduced and the available evidence suggests that consumer-grade devices exceed the performance of traditional actigraphy in assessing sleep as defined by polysomnogram. However, clear limitations exist, for example, the misclassification of wakefulness during the sleep period, problems with sleep tracking outside of the main sleep bout or nighttime period, artifacts, and unclear translation of performance to individuals with certain characteristics or comorbidities. This is of particular relevance when person-specific factors (like skin color or obesity) negatively impact sensor performance with the potential downstream impact of augmenting already existing healthcare disparities. However, wearable sleep-tracking technology holds great promise for our field, given features distinct from traditional actigraphy such as measurement of autonomic parameters, estimation of circadian features, and the potential to integrate other self-reported, objective, and passively recorded health indicators. Scientists face numerous decision points and barriers when incorporating traditional actigraphy, consumer-grade multi-sensor devices, or contemporary research/clinical-grade sleep trackers into their research. Considerations include wearable device capabilities and performance, target population and goals of the study, wearable device outputs and availability of raw and aggregate data, and data extraction, processing, and analysis. Given the difficulties in the implementation and utilization of wearable sleep-tracking technology in real-world research and clinical settings, the following State of the Science review requested by the Sleep Research Society aims to address the following questions. What data can wearable sleep-tracking devices provide? How accurate are these data? What should be taken into account when incorporating wearable sleep-tracking devices into research? These outstanding questions and surrounding considerations motivated this work, outlining practical recommendations for using wearable technology in sleep and circadian research.
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Affiliation(s)
- Massimiliano de Zambotti
- Center for Health Sciences, SRI International, Menlo Park, CA, USA
- Lisa Health Inc., Oakland, CA, USA
| | - Cathy Goldstein
- Sleep Disorders Center, Department of Neurology, University of Michigan-Ann Arbor, Ann Arbor, MI, USA
| | - Jesse Cook
- Department of Psychology, University of Wisconsin-Madison, Madison, WI, USA
| | - Luca Menghini
- Department of Psychology and Cognitive Science, University of Trento, Trento, Italy
| | - Marco Altini
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Philip Cheng
- Sleep Disorders and Research Center, Henry Ford Health, Detroit, MI, USA
| | - Rebecca Robillard
- School of Psychology, University of Ottawa, Ottawa, ON, Canada
- Canadian Sleep Research Consortium, Canada
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24
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Simon SL, Snell-Bergeon JK, Schäfer M, Barker AJ, Browne LP, Truong U, Tell SS, Vigers T, Baumgartner AD, Lyon E, Polsky S, Schauer IE, Nadeau KJ. Sleep duration and association with cardiometabolic health in adolescents and adults with type 1 diabetes: Results from the BCQR-T1D study. Diabetes Obes Metab 2024. [PMID: 38584515 DOI: 10.1111/dom.15582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/15/2024] [Accepted: 03/17/2024] [Indexed: 04/09/2024]
Abstract
AIM Type 1 diabetes (T1D) increases the risk of morbidity and mortality from cardiovascular disease, and insufficient sleep is prevalent. Emerging evidence suggests a link between sleep and cardiometabolic health, but this has not been examined across the lifespan in individuals with T1D. We aimed to examine associations between sleep and cardiometabolic health in adolescents and adults with T1D in a secondary analysis of data from a 4-week double-blind, random-order, placebo-controlled crossover trial of bromocriptine quick release (BCQR) therapy with a 4-week washout in between conditions. MATERIALS AND METHODS Forty-two adults (19-60 years) and 42 adolescents (12-18 years) with T1D >9 months completed 1 week of home monitoring with wrist-worn actigraphy to estimate sleep duration and continuous glucose monitoring, anthropometrics, arterial stiffness, magnetic resonance imaging (adolescents only), and fasting laboratory testing at each treatment phase. RESULTS Sixty-two per cent of adolescents and 74% of adults obtained <7 h of sleep per night at baseline. After adjustment for age, sex and diabetes duration, baseline sleep <7 h per night was associated with a higher body mass index, a higher waist circumference, a higher systolic blood pressure, worse arterial stiffness and a lower estimated insulin sensitivity (all p < .05). When examined by age group, associations between sleep duration and cardiometabolic health outcomes remained significant, predominantly for adolescents. In adolescents only, wake time was significantly later (p = .027) and time in bed was significantly longer with BCQR versus placebo (p = .049). CONCLUSIONS Objectively measured sleep <7 h per night was prevalent in adolescents and adults with T1D and associated with poorer cardiometabolic health markers. Small changes in sleep were seen following BCQR treatment in adolescents only. Sleep may be an important and novel target for improving cardiometabolic health in individuals with T1D.
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Affiliation(s)
- Stacey L Simon
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Janet K Snell-Bergeon
- Barbara Davis Center for Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Michal Schäfer
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Alex J Barker
- Department of Radiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Lorna P Browne
- Department of Radiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Uyen Truong
- Department of Cardiology, Children's National Hospital, Washington, DC, USA
| | - Shoshana S Tell
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Timothy Vigers
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Amy D Baumgartner
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ellen Lyon
- Department of Health and Exercise Science, Colorado State University, Fort Collins, Colorado, USA
| | - Sarit Polsky
- Barbara Davis Center for Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Irene E Schauer
- Department of Medicine, University of Colorado Anschutz Medical Campus and Endocrinology Section, Rocky Mountain Regional VA Medical Center, Aurora, Colorado, USA
| | - Kristen J Nadeau
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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25
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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26
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Ghosh S, Suray C, Bozzolan F, Palazzo A, Monsempès C, Lecouvreur F, Chatterjee A. Pheromone-mediated command from the female to male clock induces and synchronizes circadian rhythms of the moth Spodoptera littoralis. Curr Biol 2024; 34:1414-1425.e5. [PMID: 38479388 DOI: 10.1016/j.cub.2024.02.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 04/11/2024]
Abstract
To extract any adaptive benefit, the circadian clock needs to be synchronized to the 24-h day-night cycles. We have investigated if it is a general property of the brain's circadian clock to recognize social interactions as external time givers. Sociosexual interactions with the opposite sex are universal, prevalent even in the lives of solitary animals. The solitary adult life of the Spodoptera littoralis moth is singularly dedicated to sex, offering an ideal context for exploring the impact of sociosexual cues on circadian timekeeping. We have identified specific olfactory cues responsible for social entrainment, revealing a surprisingly strong influence of pheromone-mediated remote sociosexual interactions on circadian rhythms. Males' free-running rhythms are induced and synchronized by the sex pheromone that the female releases in a rhythmic fashion, highlighting a hierarchical relation between the female and male circadian oscillators. Even a single pulse of the sex pheromone altered clock gene expression in the male brain, surpassing the effect of light on the clock. Our finding of a daytime-dependent, lasting impact of pheromone on male's courtship efficacy indicates that circadian timing in moths is a trait under sexual selection. We have identified specific components of the sex-pheromone blend that lack mate-attractive property but have powerful circadian effects, providing rationale for their continued retention by the female. We show that such volatiles, when shared across sympatric moth species, can trigger communal synchronization. Our results suggest that the sex pheromone released by female moths entrains males' behavioral activity rhythm to ensure synchronized timing of mating.
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Affiliation(s)
- Sagnik Ghosh
- Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne University, CNRS, IRD, UPEC, University of Paris, 78026 Versailles, France
| | - Caroline Suray
- Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne University, CNRS, IRD, UPEC, University of Paris, 78026 Versailles, France
| | - Françoise Bozzolan
- Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne University, CNRS, IRD, UPEC, University of Paris, 78026 Versailles, France
| | - Antonio Palazzo
- Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne University, CNRS, IRD, UPEC, University of Paris, 78026 Versailles, France
| | - Christelle Monsempès
- Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne University, CNRS, IRD, UPEC, University of Paris, 78026 Versailles, France
| | - François Lecouvreur
- Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne University, CNRS, IRD, UPEC, University of Paris, 78026 Versailles, France
| | - Abhishek Chatterjee
- Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), INRAE, Sorbonne University, CNRS, IRD, UPEC, University of Paris, 78026 Versailles, France.
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27
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Constantin S, Quignon C, Pizano K, Shostak DM, Wray S. Vasoactive intestinal peptide excites GnRH neurons via KCa3.1, a potential player in the slow afterhyperpolarization current. Front Cell Neurosci 2024; 18:1354095. [PMID: 38633445 PMCID: PMC11021707 DOI: 10.3389/fncel.2024.1354095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 03/05/2024] [Indexed: 04/19/2024] Open
Abstract
Vasoactive intestinal peptide (VIP) is an important component of the suprachiasmatic nucleus (SCN) which relays circadian information to neuronal populations, including GnRH neurons. Human and animal studies have shown an impact of disrupted daily rhythms (chronic shift work, temporal food restriction, clock gene disruption) on both male and female reproduction and fertility. To date, how VIP modulates GnRH neurons remains unknown. Calcium imaging and electrophysiology on primary GnRH neurons in explants and adult mouse brain slice, respectively, were used to address this question. We found VIP excites GnRH neurons via the VIP receptor, VPAC2. The downstream signaling pathway uses both Gs protein/adenylyl cyclase/protein kinase A (PKA) and phospholipase C/phosphatidylinositol 4,5-bisphosphate (PIP2) depletion. Furthermore, we identified a UCL2077-sensitive target, likely contributing to the slow afterhyperpolarization current (IAHP), as the PKA and PIP2 depletion target, and the KCa3.1 channel as a specific target. Thus, VIP/VPAC2 provides an example of Gs protein-coupled receptor-triggered excitation in GnRH neurons, modulating GnRH neurons likely via the slow IAHP. The possible identification of KCa3.1 in the GnRH neuron slow IAHP may provide a new therapeutical target for fertility treatments.
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Affiliation(s)
| | | | | | | | - Susan Wray
- Cellular and Developmental Neurobiology Section, National Institute of Neurological Disorders and Stroke/National Institutes of Health, Bethesda, MD, United States
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28
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van Dorp R, Rolleri E, Deboer T. Sleep and the sleep electroencephalogram in C57BL/6 and C3H/HeN mice. J Sleep Res 2024; 33:e14062. [PMID: 37803888 DOI: 10.1111/jsr.14062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/08/2023] [Accepted: 09/20/2023] [Indexed: 10/08/2023]
Abstract
Different mouse strains used in biomedical research show different phenotypes associated with their genotypes. Two mouse strains commonly used in biomedical sleep research are C57Bl/6 and C3H/He, the strains differ in numerous aspects, including their ability to secrete melatonin as well as the expression of several sleep-related genes. However, sleep regulation has only limitedly been compared between C3H/HeN and C57Bl/6 mice. We therefore compared sleep-wake behaviour and EEG-measured spectral brain activity for C57bl/6 and C3H/HeN mice during a 12:12 h light: dark baseline and during and after a 6 h sleep deprivation. The C3H mice spent more time in NREM sleep around the light-dark transition and more time in REM sleep during the dark phase compared with C57bl/6 mice. The C3H mice also showed more EEG activity in the 4.5-7.5 Hz range during all stages and a stronger 24 h modulation of EEG power density in almost all EEG frequencies during NREM sleep. After the sleep deprivation, C3H mice showed a stronger recovery response, which was expressed in both a larger increase in EEG slow wave activity (SWA) and more time spent in NREM sleep. We show large differences regarding sleep architecture and EEG activity between C3H and C57bl/6 mice. These differences include the amount of waking during the late dark phase, the 24 h amplitude in EEG power density, and the amount of REM sleep during the dark phase. We conclude that differences between mouse strains should be considered when selecting a model strain to improve the generalisability of studies investigating biomedical parameters related to sleep and circadian rhythms.
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Affiliation(s)
- Rick van Dorp
- Laboratory for Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Elisa Rolleri
- Laboratory for Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Tom Deboer
- Laboratory for Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
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29
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Burgess HJ, Troost JP, Rizvydeen M, Kikyo F, Kebbeh N, Tan M, Roecklein KA, King AC, Hasler BP. Do sleep and circadian characteristics predict alcohol use in adult drinkers? Alcohol Clin Exp Res (Hoboken) 2024; 48:680-691. [PMID: 38546532 PMCID: PMC11015972 DOI: 10.1111/acer.15280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/16/2024] [Accepted: 02/02/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND While sleep and circadian rhythms are recognized contributors to the risk for alcohol use and related problems, few studies have examined whether objective sleep and circadian measures can predict future alcohol use in humans, and no such studies have been conducted in adults. This study examined whether any baseline sleep and/or circadian characteristics of otherwise healthy adults predicted their alcohol use over the subsequent 12 months. METHODS Participants (21-42 years) included 28 light and 50 heavy drinkers. At baseline, a comprehensive range of self-reported and objective sleep/circadian measures was assessed via questionnaires, wrist actigraphy, and measurement of dim light melatonin onset and circadian photoreceptor responsivity. Following this, the number of alcoholic drinks per week and binge drinking episodes per month were assessed quarterly over the subsequent 12 months. Anticipated effects of alcohol (stimulation, sedation, and rewarding aspects) were also assessed quarterly over the 12 months. Analyses included generalized linear mixed-effects models and causal mediation analysis. RESULTS Across the range of measures, only self-reported insomnia symptoms and a longer total sleep time at baseline predicted more drinks per week and binges per month (ps <0.02). There was a trend for the anticipated alcohol effect of wanting more alcohol at the 6-month timepoint to mediate the relationship between insomnia symptoms at baseline and drinks per week at 12 months (p = 0.069). CONCLUSIONS These results suggest that in otherwise healthy adults, insomnia symptoms, even if subclinical, are a significant predictor of future drinking, and appear to outweigh the influence of circadian factors on future drinking, at least in otherwise healthy adults. Insomnia symptoms may be a modifiable target for reducing the risk of alcohol misuse.
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Affiliation(s)
- Helen J. Burgess
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Jonathan P. Troost
- Michigan Institute for Clinical & Health Research, University of Michigan, Ann Arbor, MI USA
| | - Muneer Rizvydeen
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Fumitaka Kikyo
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, IL, USA
| | - Nema Kebbeh
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Michael Tan
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, IL, USA
| | | | - Andrea C. King
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | - Brant P. Hasler
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
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30
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Iwanaszko M, Waldeck N, Anafi R, Paller AS, Zee P, Fishbein A. Circadian Rhythms in Skin Barrier Function in Atopic Dermatitis: A Pilot Study. J Biol Rhythms 2024; 39:208-214. [PMID: 38305093 PMCID: PMC10994754 DOI: 10.1177/07487304231220695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Atopic dermatitis (AD) is symptomatically worse in the evening, but the mechanism driving nocturnal eczema remains elusive. Our objective was to determine the circadian rhythm of skin barrier function measured by transepidermal water loss (TEWL) in AD patients and explore the molecular underpinnings. A pilot study was performed on a diverse group of AD (n = 4) and control (n = 2) young patients. We used an inpatient tightly controlled, modified, constant routine protocol. TEWL was measured at least every 90 min in the antecubital fossa (lesional) and forearm, while whole blood samples were collected every 4 h. Results show a significant difference in the antecubital fossa TEWL in the AD group versus controls. TEWL in control skin decreases starting a few hours prior to bedtime, both in the antecubital fossa and in the forearm, while in the AD forearm skin, pre-bedtime TEWL increases. We identified 1576 differentially expressed genes using a time-dependent model. The top 20 upregulated gene ontology pathways included neuronal pathways, while the downregulated functional terms included innate immune signaling and viral response. Similar pathways positively correlated with forearm TEWL in controls and inversely with the AD group. Upregulation in sensory perception pathways correlated with increases in lesional (antecubital fossa) TEWL in the evening. Results show skin barrier function worsens in the evening in the AD group, at a time when barrier is normally rejuvenating in healthy skin. This timing and the detection of transcriptomic signatures of sensory perception and diminished viral response might correspond to the nocturnal itch. Larger studies are needed to evaluate these associations in the skin.
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Affiliation(s)
- Marta Iwanaszko
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611
| | - Nathan Waldeck
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 606112
| | - Ron Anafi
- Department of Medicine, Penn Institute for Bioinformatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104
| | - Amy S. Paller
- Departments of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611
| | - Phyllis Zee
- Department of Neurology and Center for Circadian and Sleep Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611
| | - Anna Fishbein
- Department of Pediatrics, Division of Allergy-Immunology, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611
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Ono D, Weaver DR, Hastings MH, Honma KI, Honma S, Silver R. The Suprachiasmatic Nucleus at 50: Looking Back, Then Looking Forward. J Biol Rhythms 2024; 39:135-165. [PMID: 38366616 PMCID: PMC7615910 DOI: 10.1177/07487304231225706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
It has been 50 years since the suprachiasmatic nucleus (SCN) was first identified as the central circadian clock and 25 years since the last overview of developments in the field was published in the Journal of Biological Rhythms. Here, we explore new mechanisms and concepts that have emerged in the subsequent 25 years. Since 1997, methodological developments, such as luminescent and fluorescent reporter techniques, have revealed intricate relationships between cellular and network-level mechanisms. In particular, specific neuropeptides such as arginine vasopressin, vasoactive intestinal peptide, and gastrin-releasing peptide have been identified as key players in the synchronization of cellular circadian rhythms within the SCN. The discovery of multiple oscillators governing behavioral and physiological rhythms has significantly advanced our understanding of the circadian clock. The interaction between neurons and glial cells has been found to play a crucial role in regulating these circadian rhythms within the SCN. Furthermore, the properties of the SCN network vary across ontogenetic stages. The application of cell type-specific genetic manipulations has revealed components of the functional input-output system of the SCN and their correlation with physiological functions. This review concludes with the high-risk effort of identifying open questions and challenges that lie ahead.
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Affiliation(s)
- Daisuke Ono
- Stress Recognition and Response, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
- Department of Neural Regulation, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - David R Weaver
- Department of Neurobiology and NeuroNexus Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Michael H Hastings
- Division of Neurobiology, MRC Laboratory of Molecular Biology, Cambridge, UK
| | - Ken-Ichi Honma
- Research and Education Center for Brain Science, Hokkaido University, Sapporo, Japan
- Center for Sleep and Circadian Rhythm Disorders, Sapporo Hanazono Hospital, Sapporo, Japan
| | - Sato Honma
- Research and Education Center for Brain Science, Hokkaido University, Sapporo, Japan
- Center for Sleep and Circadian Rhythm Disorders, Sapporo Hanazono Hospital, Sapporo, Japan
| | - Rae Silver
- Stress Recognition and Response, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
- Department of Neural Regulation, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Neuroscience & Behavior, Barnard College and Department of Psychology, Columbia University, New York City, New York, USA
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Ding J, Chen P, Qi C. Circadian rhythm regulation in the immune system. Immunology 2024; 171:525-533. [PMID: 38158836 DOI: 10.1111/imm.13747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024] Open
Abstract
Circadian rhythms are a ubiquitous feature in nearly all living organisms, representing oscillatory patterns with a 24-h cycle that are widespread across various physiological processes. Circadian rhythms regulate a multitude of physiological systems, including the immune system. At the molecular level, most immune cells autonomously express clock-regulating genes, which play critical roles in regulating immune cell functions. These functions encompass migration, phagocytic activity, immune cell metabolism (such as mitochondrial structural function and metabolism), signalling pathway activation, inflammatory responses, innate immune recognition, and adaptive immune processes (including vaccine responses and pathogen clearance). The endogenous circadian clock orchestrates multifaceted rhythmicity within the immune system, optimizing immune surveillance and responsiveness; this bears significant implications for maintaining immune homeostasis and resilience against diseases. This work provides an overview of circadian rhythm regulation within the immune system.
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Affiliation(s)
- Jun Ding
- Laboratory of Oncology, Basic Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Changzhou, China
| | - Pengyu Chen
- Department of Clinical Medicine (5+3 Integrated), The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Chunjian Qi
- Laboratory of Oncology, Basic Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Changzhou, China
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Sancassiani F, Cossu G, Cantone E, Romano F, Perra A, Urban A, Pinna S, Del Giacco S, Littera R, Firinu D, Chessa L, Tramontano E, Nardi AE, Carta MG. The Stability of Social and Behavioral Rhythms and Unexpected Low Rate of Relevant Depressive Symptoms in Old Adults during the COVID-19 Pandemic. J Clin Med 2024; 13:2005. [PMID: 38610769 PMCID: PMC11012795 DOI: 10.3390/jcm13072005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/24/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Background: The disruption of social rhythms was found to be associated with depressive disorders during the COVID-19 pandemic; lower rates of these disorders were surprisingly found in old adults. The present study aims to verify the stability of social rhythms during lockdown in a sample of elderly people. Methods: Controlled cohort study (secondary analyses) of a previous randomized-controlled trial with the first evaluation in April 2019 (T0) and then 48 weeks later (T1) during the lockdown. The regulation of social and behavioral rhythms was measured through the Brief Social Rhythms Scale (BSRS); the Patient Health Questionnaire-9 (PHQ9) was adopted to detect relevant depressive symptoms. Results: 93 elderlies (73.36 ± 4.97 years old, 50.5% females) were evaluated at T0 and T1. Neither the total score of BSRS nor any of the 10 items showed a statistically significant difference comparing the two survey periods. The frequency of relevant depressive symptoms was 5.3% at T0 and 6.4% at T1 (OR = 0.8, CI95% 0.2-24). Conclusions: Among elderlies who did not show an increased risk of depression during the lockdown, social and behavioral rhythms remained exceptionally stable during the same period. Considering previous evidence about rhythms dysregulation preceding depression, their stability may be considered a factor of resilience.
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Affiliation(s)
- Federica Sancassiani
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Giulia Cossu
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Elisa Cantone
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Ferdinando Romano
- Department of Public Health and Infectious Diseases, University of Rome “La Sapienza”, 00185 Roma, Italy;
| | - Alessandra Perra
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Antonio Urban
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
- University Hospital of Cagliari, 09124 Cagliari, Italy
| | - Samantha Pinna
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Stefano Del Giacco
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Roberto Littera
- Medical Genetics, “R. Binaghi” Hospital, 09126 Cagliari, Italy;
- AART-ODV (Association for the Advancement of Research on Transplantation), 09131 Cagliari, Italy
| | - Davide Firinu
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Luchino Chessa
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
| | - Enzo Tramontano
- Department of Life and Environmental Sciences, University of Cagliari, 09124 Cagliari, Italy;
| | - Antonio Egidio Nardi
- Institute of Psychiatry-IPUB, Federal University of Rio de Janeiro, Rio de Janeiro 22290-140, Brazil;
| | - Mauro Giovanni Carta
- Department of Medical Sciences and Public Health, University of Cagliari, 09124 Cagliari, Italy; (G.C.); (E.C.); (A.P.); (A.U.); (S.P.); (S.D.G.); (D.F.); (L.C.); (M.G.C.)
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van Rosmalen L, Deota S, Maier G, Le HD, Lin T, Ramasamy RK, Hut RA, Panda S. Energy balance drives diurnal and nocturnal brain transcriptome rhythms. Cell Rep 2024; 43:113951. [PMID: 38508192 DOI: 10.1016/j.celrep.2024.113951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/30/2024] [Accepted: 02/26/2024] [Indexed: 03/22/2024] Open
Abstract
Plasticity in daily timing of activity has been observed in many species, yet the underlying mechanisms driving nocturnality and diurnality are unknown. By regulating how much wheel-running activity will be rewarded with a food pellet, we can manipulate energy balance and switch mice to be nocturnal or diurnal. Here, we present the rhythmic transcriptome of 21 tissues, including 17 brain regions, sampled every 4 h over a 24-h period from nocturnal and diurnal male CBA/CaJ mice. Rhythmic gene expression across tissues comprised different sets of genes with minimal overlap between nocturnal and diurnal mice. We show that non-clock genes in the suprachiasmatic nucleus (SCN) change, and the habenula was most affected. Our results indicate that adaptive flexibility in daily timing of behavior is supported by gene expression dynamics in many tissues and brain regions, especially in the habenula, which suggests a crucial role for the observed nocturnal-diurnal switch.
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Affiliation(s)
- Laura van Rosmalen
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Shaunak Deota
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Geraldine Maier
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Hiep D Le
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Terry Lin
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Ramesh K Ramasamy
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Roelof A Hut
- Chronobiology Unit, Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9700 CC Groningen, the Netherlands.
| | - Satchidananda Panda
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.
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Chen P, Wang W, Ban W, Zhang K, Dai Y, Yang Z, You Y. Deciphering Post-Stroke Sleep Disorders: Unveiling Neurological Mechanisms in the Realm of Brain Science. Brain Sci 2024; 14:307. [PMID: 38671959 PMCID: PMC11047862 DOI: 10.3390/brainsci14040307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/15/2024] [Accepted: 03/17/2024] [Indexed: 04/28/2024] Open
Abstract
Sleep disorders are the most widespread mental disorders after stroke and hurt survivors' functional prognosis, response to restoration, and quality of life. This review will address an overview of the progress of research on the biological mechanisms associated with stroke-complicating sleep disorders. Extensive research has investigated the negative impact of stroke on sleep. However, a bidirectional association between sleep disorders and stroke exists; while stroke elevates the risk of sleep disorders, these disorders also independently contribute as a risk factor for stroke. This review aims to elucidate the mechanisms of stroke-induced sleep disorders. Possible influences were examined, including functional changes in brain regions, cerebrovascular hemodynamics, neurological deficits, sleep ion regulation, neurotransmitters, and inflammation. The results provide valuable insights into the mechanisms of stroke complicating sleep disorders.
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Affiliation(s)
- Pinqiu Chen
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China; (P.C.)
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Wenyan Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, China; (P.C.)
| | - Weikang Ban
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Kecan Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Yanan Dai
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Zhihong Yang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Yuyang You
- School of Automation, Beijing Institute of Technology, Beijing 100081, China
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Abstract
Circadian rhythms in physiology and behavior are ≈24-hour biological cycles regulated by internal biological clocks (ie, circadian clocks) that optimize organismal homeostasis in response to predictable environmental changes. These clocks are present in virtually all cells in the body, including cardiomyocytes. Many decades ago, clinicians and researchers became interested in studying daily patterns of triggers for sudden cardiac death, the incidence of sudden cardiac death, and cardiac arrhythmias. This review highlights historical and contemporary studies examining the role of day/night rhythms in the timing of cardiovascular events, delves into changes in the timing of these events over the last few decades, and discusses cardiovascular disease-specific differences in the timing of cardiovascular events. The current understanding of the environmental, behavioral, and circadian mechanisms that regulate cardiac electrophysiology is examined with a focus on the circadian regulation of cardiac ion channels and ion channel regulatory genes. Understanding the contribution of environmental, behavioral, and circadian rhythms on arrhythmia susceptibility and the incidence of sudden cardiac death will be essential in developing future chronotherapies.
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Affiliation(s)
- Brian P Delisle
- Department of Physiology, University of Kentucky, Lexington (B.P.D., A.P., D.E.B.)
| | - Abhilash Prabhat
- Department of Physiology, University of Kentucky, Lexington (B.P.D., A.P., D.E.B.)
| | - Don E Burgess
- Department of Physiology, University of Kentucky, Lexington (B.P.D., A.P., D.E.B.)
| | - Makoto Ono
- Division of Cardiology and Rehabilitation, Tamaki Hospital, Japan (M.O.)
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37
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Wang X, Wang Q, Li Z, Chen M, Guo M, Kong L, Chen L, Li X, Li J, Cao Q, Luo Z, Xiong Z, Zhao D. Reliability and validity of the Chinese version of the sunlight exposure questionnaire. Front Public Health 2024; 12:1281301. [PMID: 38550315 PMCID: PMC10972874 DOI: 10.3389/fpubh.2024.1281301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 02/22/2024] [Indexed: 04/02/2024] Open
Abstract
Objective This study aimed to translate and validate the reliability and validity of the Chinese version of the Philippines Sunlight Exposure Questionnaire. Methods A total of 392 Chinese individuals aged at least 18 years, residing in various cities in Sichuan province for at least 1 year, were recruited. The reliability of the Chinese version of the questionnaire was measured through internal consistency, split-half reliability, and retest reliability, while validity was determined using the content validity index and the structure validity index. Results The Chinese version of the Sunlight Exposure Questionnaire, which includes 19 items covering 5 factors, demonstrated McDonald's omega coefficient of 0.788. The split-half reliability of the questionnaire was 0.823, and the retest reliability was 0.940. The content validity index (S-CVI) was 0.952. The five-factor structure, supported by eigenvalues, explained 66.2% of the total variance. Confirmatory factor analysis indicated favorable model fit. Results The chi-square value degrees of freedom ratio (χ2/df) = 1.852, the goodness-of-fit index (GFI) = 0.938, the normed fit index (NFI) = 0.922, the incremental fit index (IFI) = 0.962, the comparative fit index (CFI) = 0.962, the Tucker-Lewis index (TLI) = 0.952, and root mean square error of approximation (RMSEA) = 0.047. The indicators of the fit of the model were within reasonable bounds. Conclusion The Chinese version of the Sunlight Exposure Questionnaire shows validity and good reliability for assessing sun exposure among adults in a Chinese cultural context.
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Affiliation(s)
- Xiaoxia Wang
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Qin Wang
- School of Nursing, Chengdu Medical College, Chengdu, China
- School of Health and Medicine, Polus International College, Chengdu, China
| | - Zhe Li
- Mental Health Center, West China Hospital, Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Mengjie Chen
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Maoting Guo
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Laixi Kong
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Liyuan Chen
- Xindu Hospital of Traditional Chinese Medicine •The First Affiliated Hospital of Traditional Chinese Medicine, Chengdu Medical College, Chengdu, China
| | - Xiaolong Li
- Xindu Hospital of Traditional Chinese Medicine •The First Affiliated Hospital of Traditional Chinese Medicine, Chengdu Medical College, Chengdu, China
| | - Junjun Li
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Qieyan Cao
- Second Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Zhenhua Luo
- Xindu Hospital of Traditional Chinese Medicine •The First Affiliated Hospital of Traditional Chinese Medicine, Chengdu Medical College, Chengdu, China
| | - Zhenzhen Xiong
- School of Nursing, Chengdu Medical College, Chengdu, China
- Nursing Key Laboratory of Sichuan Province, Chengdu, China
| | - Dan Zhao
- School of Nursing, Chengdu Medical College, Chengdu, China
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38
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Cavieres-Lepe J, Amini E, Zabel M, Nässel DR, Stanewsky R, Wegener C, Ewer J. Timed receptor tyrosine kinase signaling couples the central and a peripheral circadian clock in Drosophila. Proc Natl Acad Sci U S A 2024; 121:e2308067121. [PMID: 38442160 PMCID: PMC10945756 DOI: 10.1073/pnas.2308067121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 02/01/2024] [Indexed: 03/07/2024] Open
Abstract
Circadian clocks impose daily periodicities to behavior, physiology, and metabolism. This control is mediated by a central clock and by peripheral clocks, which are synchronized to provide the organism with a unified time through mechanisms that are not fully understood. Here, we characterized in Drosophila the cellular and molecular mechanisms involved in coupling the central clock and the peripheral clock located in the prothoracic gland (PG), which together control the circadian rhythm of emergence of adult flies. The time signal from central clock neurons is transmitted via small neuropeptide F (sNPF) to neurons that produce the neuropeptide Prothoracicotropic Hormone (PTTH), which is then translated into daily oscillations of Ca2+ concentration and PTTH levels. PTTH signaling is required at the end of metamorphosis and transmits time information to the PG through changes in the expression of the PTTH receptor tyrosine kinase (RTK), TORSO, and of ERK phosphorylation, a key component of PTTH transduction. In addition to PTTH, we demonstrate that signaling mediated by other RTKs contributes to the rhythmicity of emergence. Interestingly, the ligand to one of these receptors (Pvf2) plays an autocrine role in the PG, which may explain why both central brain and PG clocks are required for the circadian gating of emergence. Our findings show that the coupling between the central and the PG clock is unexpectedly complex and involves several RTKs that act in concert and could serve as a paradigm to understand how circadian clocks are coordinated.
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Affiliation(s)
- Javier Cavieres-Lepe
- Centro Interdisciplinario de Neurociencias de Valparaíso, Universidad de Valparaíso, Valparaíso2360102, Chile
| | - Emad Amini
- Julius-Maximilians-Universität Würzburg, Biocenter, Theodor-Boveri-Institute, Neurobiology and Genetics, Am Hubland, Würzburg97074, Germany
| | - Maia Zabel
- Centro Interdisciplinario de Neurociencias de Valparaíso, Universidad de Valparaíso, Valparaíso2360102, Chile
| | - Dick R. Nässel
- Department of Zoology, Stockholm University, 10691Stockholm, Sweden
| | - Ralf Stanewsky
- Institute of Neuro- and Behavioral Biology, Multiscale Imaging Centre, University of Münster, 48149Münster, Germany
| | - Christian Wegener
- Julius-Maximilians-Universität Würzburg, Biocenter, Theodor-Boveri-Institute, Neurobiology and Genetics, Am Hubland, Würzburg97074, Germany
| | - John Ewer
- Centro Interdisciplinario de Neurociencias de Valparaíso, Universidad de Valparaíso, Valparaíso2360102, Chile
- Instituto de Neurociencias, Universidad de Valparaíso, Valparaíso2360102, Chile
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Gabaldón-Estevan D, Carmona-Talavera D, Catalán-Gregori B, Mañas-García E, Martin-Carbonell V, Monfort L, Martinez-Besteiro E, González-Carrasco M, Hernández-Jiménez MJ, Täht K, Talavera M, Ancheta-Arrabal A, Sáez G, Estany N, Pin-Arboledas G, Reis C. Kairos study protocol: a multidisciplinary approach to the study of school timing and its effects on health, well-being and students' performance. Front Public Health 2024; 12:1336028. [PMID: 38525330 PMCID: PMC10957785 DOI: 10.3389/fpubh.2024.1336028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/26/2024] [Indexed: 03/26/2024] Open
Abstract
Recent evidence from chronobiology, chssronomedicine and chronopsychology shows that the organisation of social time (e.g., school schedules) generally does not respect biological time. This raises concerns about the impact of the constant mismatch between students' social and internal body clocks on their health, well-being and academic performance. The present paper describes a protocol used to investigate the problem of (de) synchronisation of biological times (chronotypes) in childhood and youth in relation to school times. It studies the effects of student chronotype vs. school schedule matches/mismatches on health behaviours (e.g., how many hours students sleep, when they sleep, eat, do physical activity, spend time outdoors in daylight) and learning (verbal expression, spatial structuring, operations) and whether alert-fatigue levels mediate this effect alignments/misalignments on learning (verbal expression, spatial structuring, operations) and their mediation by alert-fatigue levels. The novelty of our protocol lies in its multidisciplinary and mixed methodology approach to a relevant and complex issue. It draws on up-to-date knowledge from the areas of biology, medicine, psychology, pedagogy and sociology. The methods employed include a varied repertoire of techniques from hormonal analysis (cortisol and melatonin), continuous activity and light monitoring, self-registration of food intake, sleep timings, exercise and exposure to screens, alongside with systematic application of cognitive performance tests (e.g., memory, reasoning, calculation, attention) and self-reported well-being. This comprehensive and interdisciplinary protocol should support evidence-based education policy measures related to school time organisation. Appropriate and healthier school timetables will contribute to social change, healthier students and with more efficient learning. The results of studies using a similar methodology in other countries would ensure replication and comparability of results and contribute to knowledge to support policy making.
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Affiliation(s)
| | | | | | - Elena Mañas-García
- Department of Sociology and Social Anthropology, University of Valencia, Valencia, Spain
| | | | - Lucía Monfort
- Department of Pediatrics, Clinical University Hospital, Valencia, Spain
| | - Elvira Martinez-Besteiro
- Department of Personality, Assessment and Psychological Treatments, University of Valencia, Valencia, Spain
| | | | | | - Kadri Täht
- Institute of International Social Studies, School of Governance, Law and Society, Tallinn University, Tallinn, Estonia
| | - Marta Talavera
- Department of Experimental and Social Sciences Teaching, University of Valencia, Valencia, Spain
| | - Ana Ancheta-Arrabal
- Department of Comparative Education and History of Education, University of Valencia, Valencia, Spain
| | - Guillermo Sáez
- Service of Clinical Analysis, University Hospital Dr. Peset, Valencia, Spain
- Department of Biochemistry and Molecular Biology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
| | - Nuria Estany
- Service of Clinical Analysis, University Hospital Dr. Peset, Valencia, Spain
| | - Gonzalo Pin-Arboledas
- Grupo de Sueño y Cronobiologia de la Asociación Española de Pediatría, Valencia, Spain
| | - Catia Reis
- CRC-W - Faculdade de Ciências Humanas, Universidade Católica Portuguesa, Lisbon, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, IMM, Lisboa, Lisbon, Portugal
- ISAMB - Faculdade de Medicina Universidade de Lisboa, Lisbon, Portugal
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Zahradka I, Tichanek F, Magicova M, Modos I, Viklicky O, Petr V. Morning administration enhances humoral response to SARS-CoV-2 vaccination in kidney transplant recipients. Am J Transplant 2024:S1600-6135(24)00199-0. [PMID: 38460787 DOI: 10.1016/j.ajt.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 02/06/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Although severe acute respiratory syndrome coronavirus 2 messenger ribonucleic acid (SARS-CoV-2 mRNA) vaccines are effective in kidney transplant recipients (KTRs), their immune response to vaccination is blunted by immunosuppression. Other tools enhancing vaccination response are therefore needed. Interestingly, aligning vaccine administration with circadian rhythms (chronovaccination) has been shown to boost immune response. However, its applicability in KTRs, whose circadian rhythms are likely disrupted by immunosuppressants, remains unclear. To assess the impact of vaccination timing on seroconversion in the KTRs population, we analyzed data from 553 virus-naïve KTRs who received 2 doses of messenger ribonucleic acid (mRNA) vaccine. Bayesian logistic regression was employed, adjusting for previously identified predictors of seroconversion, including allograft function, maintenance immunosuppressants, or time since transplantation. SARS-CoV-2 immunoglobulin G (IgG) levels were measured with a median of 47 days after the second dose. The results did not reveal a reliable effect of timing of the first dose but did indicate that earlier timing for the second dose brings a notable benefit-every 1-hour delay in the application was associated with a 16% reduction in the odds of seroconversion (OR 0.84, 95% CI 0.71, 0.998). Similar results were obtained from quantile regression modeling IgG levels. In conclusion, morning vaccination is emerging as a promising and easily implementable strategy to enhance vaccine response in KTRs.
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Affiliation(s)
- Ivan Zahradka
- Department of Nephrology, Transplantation Center, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Filip Tichanek
- Department of Data Science, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Maria Magicova
- Department of Nephrology, Transplantation Center, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Istvan Modos
- Department of Data Science, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Ondrej Viklicky
- Department of Nephrology, Transplantation Center, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Vojtech Petr
- Department of Nephrology, Transplantation Center, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
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Aljahdali AA, Shi Z. Circadian Syndrome Is Associated with Dietary Patterns among Middle-Older Americans: The Health and Retirement Study. Nutrients 2024; 16:760. [PMID: 38542672 PMCID: PMC10975158 DOI: 10.3390/nu16060760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/03/2024] [Accepted: 03/05/2024] [Indexed: 04/01/2024] Open
Abstract
Population aging is a global demographic characteristic of the 21st century, and healthy eating is a core component of healthy aging. However, limited evidence is available among older adults for associations between diet quality and circadian syndrome (CircS). Thus, this study examined associations between dietary patterns and CircS among a representative sample of middle-older adults in the US. The sample comprised middle-older adults enrolled in the 2016 core wave of the Health and Retirement Study (HRS) and one of its sub-studies, the 2013 Health Care and Nutrition Study (HCNS). A food frequency questionnaire was used to quantify habitual food intake and identify dietary patterns using a factor analysis. CircS was defined based on the existence of ≥4 components of metabolic syndrome and indicators of sleep disorders and depression. A total of 4253 middle-older adults with a mean age (SD) of 65.4 (10.0) years were included in the study. The prevalence of CircS was 35.9%. Comparing extreme quartiles of the "Prudent Pattern", the odds ratio (95% CI) for CircS was 0.72 (0.55-0.94), and it was 1.47 (1.10-1.95) for the "Western Pattern". The "Western Pattern" was positively associated while the "Prudent Pattern" was inversely associated with the odds of CircS among middle-older adults.
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Affiliation(s)
- Abeer Ali Aljahdali
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, MI 48109, USA
| | - Zumin Shi
- Human Nutrition Department, College of Health Sciences, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
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Swanson LM, Sibour TD, DuBuc K, Conroy DA, Raglan GB, Lorang K, Zollars J, Hershner S, Arnedt JT, Burgess HJ. Low dose exogenous melatonin plus evening dim light and time in bed scheduling advances circadian phase irrespective of measured or estimated dim light melatonin onset time: preliminary findings. J Clin Sleep Med 2024. [PMID: 38445651 DOI: 10.5664/jcsm.11076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
STUDY OBJECTIVES The purpose of the present study was to preliminarily evaluate whether knowing the dim light melatonin onset (DLMO) time is advantageous when treating delayed sleep-wake phase disorder (DSWPD) with low dose melatonin treatment plus behavioral interventions (i.e., evening dim light and time in bed (TIB) scheduling). METHODS In this randomized, controlled, double-blind trial, 40 adults with DSWPD were randomly assigned to 4 weeks of 0.5 mg timed to be administered either 3 hours before the DLMO (measured DLMO group, n = 20) or 5 hours before sleep onset time per actigraphy (estimated DLMO group, n = 20), in conjunction with behavioral interventions. The primary outcome was change in the DLMO (measured in-home). Secondary outcomes included sleep parameters per diary and actigraphy (sleep onset and offset times and total sleep time), Morningness-Eveningness Questionnaire (MEQ), Multidimensional Fatigue Inventory (MFI), PROMIS-Sleep Disturbance (SD), PROMIS-Sleep Related Impairment (SRI), and Pittsburgh Sleep Quality Index (PSQI). Mixed effects models tested for group differences in these outcome. RESULTS After applying the Bonferroni correction for multiple comparisons (significant p-value set at ˂ .004), there were significant main effects for visit on all outcomes except PSQI and total sleep time per wrist actigraphy and diary. There were no group by visit interactions for any of the outcomes (p > .004). CONCLUSIONS Scheduled low dose melatonin plus behavioral interventions may improve many circadian and sleep parameters regardless of whether melatonin administration is scheduled based on estimated or measured DLMO. A larger-scale trial is needed to confirm these preliminary findings. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov Identifier: NCT03715465; Name: The Clinical Utility of Measuring the Circadian Clock in Treatment of Delayed Sleep-Wake Phase Disorder; URL: https://clinicaltrials.gov/study/NCT03715465.
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Affiliation(s)
| | | | - Kelley DuBuc
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
| | | | - Greta B Raglan
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
| | - Kate Lorang
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
| | - Jennifer Zollars
- Michigan Institute for Clinical & Health Research, University of Michigan, Ann Arbor, MI
| | | | - J Todd Arnedt
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
| | - Helen J Burgess
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
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Wescott DL, Hasler BP, Franzen PL, Taylor ML, Klevens AM, Gamlin P, Siegle GJ, Roecklein KA. Circadian photoentrainment varies by season and depressed state: associations between light sensitivity and sleep and circadian timing. Sleep 2024:zsae066. [PMID: 38530635 DOI: 10.1093/sleep/zsae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/08/2024] [Indexed: 03/28/2024] Open
Abstract
STUDY OBJECTIVES Altered light sensitivity may be an underlying vulnerability for disrupted circadian photoentrainment. The photic information necessary for circadian photoentrainment is sent to the circadian clock from melanopsin-containing intrinsically photosensitive retinal ganglion cells (ipRGCs). The current study tested whether the responsivity of ipRGCs measured using the post-illumination pupil response (PIPR) was associated with circadian phase, sleep timing, and circadian alignment, and if these relationships varied by season or depression severity. METHODS Adult participants (N = 323, agem = 40.5, agesd = 13.5) with varying depression severity were recruited during the summer (n = 154) and winter (n = 169) months. Light sensitivity was measured using the PIPR. Circadian phase was assessed using Dim Light Melatonin Onset (DLMO) on Friday evenings. Midsleep was measured using actigraphy. Circadian alignment was calculated as the DLMO-midsleep phase angle. Multilevel regression models covaried for age, gender, and time since wake of PIPR assessment. RESULTS Greater light sensitivity was associated with later circadian phase in summer but not in winter (β = 0.23; p = 0.03). Greater light sensitivity was associated with shorter DLMO-midsleep phase angles (β = 0.20; p = 0.03) in minimal depression but not in moderate depression (SIGHSAD < 6.6; Johnson-Neyman region of significance). CONCLUSIONS Light sensitivity measured by the PIPR was associated with circadian phase during the summer but not in winter, suggesting ipRGC functioning in humans may affect circadian entrainment when external zeitgebers are robust. Light sensitivity was associated with circadian alignment only in participants with minimal depression, suggesting circadian photoentrainment, a possible driver of mood, may be decreased in depression year-round, similar to decreased photoentrainment in winter.
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Affiliation(s)
| | - Brant P Hasler
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Peter L Franzen
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Maddison L Taylor
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alison M Klevens
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Paul Gamlin
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Greg J Siegle
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Miranda A, Peek E, Ancoli-Israel S, Young JW, Perry W, Minassian A. The Role of Cannabis and The Endocannabinoid System in Sleep Regulation and Cognition: A Review of Human and Animal Studies. Behav Sleep Med 2024; 22:217-233. [PMID: 37401160 PMCID: PMC10761597 DOI: 10.1080/15402002.2023.2232497] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
OBJECTIVES Both sleep and cognition are partially modulated by the endocannabinoid (ECB) system. Cannabis has been reported to have effects on sleep and cognition. This review aims to summarize the recent literature on the ECB system, the role of cannabis and the ECB system on sleep regulation and cognition. Further, this review will identify existing gaps in knowledge and suggest potential targets for future research. METHODS We performed this review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Reports were identified by searching PubMed/MEDLINE, Embase, CINAHL, Web of Science, and PsycINFO for articles published through September 2021 for studies with data available on aspects of cognition, cannabis, or the ECB system, and sleep or circadian rhythms (CRs). RESULTS We identified 6 human and 6 animal studies to be eligible for inclusion in this review. Several human studies found that cannabis use is not associated with changes in sleep quality or cognitive function. However, individual cannabinoids appeared to have independent effects on cognition and sleep; THC alone decreased cognitive performance and increased daytime sleepiness, whereas CBD alone had no effect on sleep or cognition. Animal studies demonstrated that manipulation of the ECB system altered activity and cognitive function, some of which appeared to be dependent on the light/dark cycle. CONCLUSION The sleep-wake cycle and CRs are both likely modulated by the ECB system, potentially resulting in effects on cognition, however this area is critically understudied.
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Affiliation(s)
- Alannah Miranda
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Elizabeth Peek
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Sonia Ancoli-Israel
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
- Center for Circadian Biology, University of California San Diego, San Diego, CA, USA
| | - Jared W Young
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - William Perry
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Arpi Minassian
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
- Center for Excellence on Stress and Mental Health, Veterans Affairs San Diego Health System, San Diego, CA, USA
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Brito LC, Azevêdo LM, Amaro-Vicente G, Costa LR, da Silva Junior ND, Halliwill JR, Rondon MUPB, Forjaz CLM. Evening but not morning aerobic training improves sympathetic activity and baroreflex sensitivity in elderly patients with treated hypertension. J Physiol 2024; 602:1049-1063. [PMID: 38377223 DOI: 10.1113/jp285966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 02/08/2024] [Indexed: 02/22/2024] Open
Abstract
The blood pressure-lowering effect of aerobic training is preceded by improving cardiovascular autonomic control. We previously demonstrated that aerobic training conducted in the evening (ET) induces a greater decrease in blood pressure than morning training (MT). To study whether the greater blood pressure decrease after ET occurs through better cardiovascular autonomic regulation, this study aimed to compare MT versus ET on muscle sympathetic nerve activity (MSNA) and baroreflex sensitivity (BRS) in treated patients with hypertension. Elderly patients treated for hypertension were randomly allocated into MT (n = 12, 07.00-10.00 h) or ET (n = 11, 17.00-20.00 h) groups. Both groups trained for 10 weeks, 3 times/week, cycling for 45 min at moderate intensity. Beat-to-beat blood pressure (finger photoplethysmography), heart rate (electrocardiography) and MSNA (microneurography) were assessed at the initial and final phases of the study at baseline and during sequential bolus infusions of sodium nitroprusside and phenylephrine (modified-Oxford technique) to evaluate cardiac and sympathetic BRS. Mean blood pressure decreased significantly after ET but not after MT (-9 ± 11 vs. -1 ± 8 mmHg, P = 0.042). MSNA decreased significantly only after ET with no change after MT (-12 ± 5 vs. -3 ± 7 bursts/100 heart beats, P = 0.013). Sympathetic BRS improved after ET but not after MT (-0.8 ± 0.7 vs. 0.0 ± 0.8 bursts/100 heart beats/mmHg, P = 0.052). Cardiac BRS improved similarly in both groups (ET: +1.7 ± 1.8 vs. MT: +1.4 ± 1.9 ms/mmHg, Pphase ≤ 0.001). In elderly patients treated for hypertension, only ET decreased mean blood pressure and MSNA and improved sympathetic BRS. These findings revealed that the sympathetic nervous system has a key role in ET's superiority to MT in blood pressure-lowering effect. KEY POINTS: Reducing muscle nerve sympathetic activity and increasing sympathetic baroreflex sensitivity plays a key role in promoting the greater blood pressure reduction observed with evening training. These findings indicated that simply changing the timing of exercise training may offer additional benefits beyond antihypertensive medications, such as protection against sympathetic overdrive and loss of baroreflex sensitivity, independent markers of mortality. Our new findings also suggest new avenues of investigation, such as the possibility that evening aerobic training may be beneficial in other clinical conditions with sympathetic overdrive, such as congestive heart failure and hypertrophic cardiomyopathy.
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Affiliation(s)
- Leandro C Brito
- Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, USA
| | - Luan M Azevêdo
- Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Graziela Amaro-Vicente
- Laboratory of Autonomic Control of Circulation, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Luis R Costa
- Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Natan D da Silva Junior
- Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
| | - John R Halliwill
- Department of Human Physiology, University of Oregon, Eugene, OR, USA
| | - Maria U P B Rondon
- Laboratory of Autonomic Control of Circulation, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Cláudia L M Forjaz
- Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil
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Mentzelou M, Papadopoulou SK, Psara E, Voulgaridou G, Pavlidou E, Androutsos O, Giaginis C. Chrononutrition in the Prevention and Management of Metabolic Disorders: A Literature Review. Nutrients 2024; 16:722. [PMID: 38474850 DOI: 10.3390/nu16050722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND The concept of time-restricted eating (TRE) or time-restricted feeding (TRF) promotes daily periods of feeding and fasting to determine whole-body physiology. Chronic misalignment of circadian rhythms or chrono-disruption is related to an increased risk of diverse metabolic disorders. The progression of non-communicable diseases seems to be affected by the timing of meals. As a result, intermittent fasting is a promising approach for their management. The aim of the present literature review is to examine and scrutinize the TRE protocols in the fields of prevention and management of metabolic disorders. METHODS This is a thorough literature review of the reported associations among circadian rhythm, metabolic disorders, diabetes mellitus, obesity, TRE, TRF, dietary habits, circadian disruption, cardiovascular diseases, atherosclerosis, and non-alcoholic fatty liver to find the already existing clinical studies from the last decade (2014-2024) in the most precise scientific online databases, using relevant specific keywords. Several inclusion and exclusion criteria were applied to scrutinize only longitudinal, cross-sectional, descriptive, and prospective clinical human studies. RESULTS The currently available clinical findings remain scarce and suggest that chrononutrition behaviors such as TRE or TRF may promote several metabolic benefits, mainly in body weight control and fat loss. Improvements in glucose levels and lipid profiles are currently quite controversial since some clinical studies show little or no effect. As far as liver diseases are concerned, the efficacy of intermittent fasting seems to be stronger in the management of non-alcoholic fatty liver disease due to body weight decline and fat loss. CONCLUSIONS Even if there has been a gradual increase in clinical studies in the last few years, providing promising perspectives, currently, there is no conclusive evidence for the role of chrononutrition in metabolic disorders. Future studies should be well-designed with longer duration and larger sample sizes. Moreover, it is important to examine the best timing of the eating window and its feasibility.
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Affiliation(s)
- Maria Mentzelou
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, 81400 Lemnos, Greece
| | - Sousana K Papadopoulou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, 57400 Thessaloniki, Greece
| | - Evmorfia Psara
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, 81400 Lemnos, Greece
| | - Gavriela Voulgaridou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, 57400 Thessaloniki, Greece
| | - Eleni Pavlidou
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, 81400 Lemnos, Greece
| | - Odysseas Androutsos
- Laboratory of Clinical Nutrition and Dietetics, Department of Nutrition and Dietetics, School of Physical Education, Sport Science and Dietetics, University of Thessaly, 42132 Trikala, Greece
| | - Constantinos Giaginis
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, 81400 Lemnos, Greece
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Arapi EA, Reynolds M, Ellison AR, Cable J. Restless nights when sick: ectoparasite infections alter rest-activity cycles of diurnal fish hosts. Parasitology 2024; 151:251-259. [PMID: 38372138 PMCID: PMC11007282 DOI: 10.1017/s0031182023001324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/01/2023] [Accepted: 12/01/2023] [Indexed: 02/20/2024]
Abstract
Circadian rhythms are timekeeping mechanisms responsible for an array of biological processes. Disruption of such cycles can detrimentally affect animal health. Circadian rhythms are critical in the co-evolution of host–parasite systems, as synchronization of parasite rhythms to the host can influence infection dynamics and transmission potential. This study examines the circadian rhythms in behaviour and activity of a model fish species (Poecilia reticulata) in isolation and in shoals, both when uninfected and infected with an ectoparasite (Gyrodactylus turnbulli). Additionally, the rhythmical variance of parasite activity under different light conditions as well as rhythmical variance in parasite transmissibility was explored. Overall, infection alters the circadian rhythm of fish, causing nocturnal restlessness. Increased activity of gyrodactylids on the host's skin at night could potentially contribute to this elevated host activity. Whilst migration of gyrodactylids across the host's skin may have caused irritation to the host resulting in nocturnal restlessness, the disruption in guppy activity rhythm caused by the expression of host innate immunity cannot be excluded. We discuss the wider repercussions such behavioural responses to infection have for host health, the implications for animal behaviour studies of diurnal species as well as the application of chronotherapeutic approaches to aquaculture.
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Affiliation(s)
| | | | - Amy R. Ellison
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
- School of Natural Sciences, Bangor University, Bangor LL57 2DG, UK
| | - Jo Cable
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
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Liao M, Gao X, Chen C, Li Q, Guo Q, Huang H, Zhang E, Ju D. Integrated neural tracing and in-situ barcoded sequencing reveals the logic of SCN efferent circuits in regulating circadian behaviors. Sci China Life Sci 2024; 67:518-528. [PMID: 38057622 DOI: 10.1007/s11427-023-2420-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/30/2023] [Indexed: 12/08/2023]
Abstract
The circadian clock coordinates rhythms in numerous physiological processes to maintain organismal homeostasis. Since the suprachiasmatic nucleus (SCN) is widely accepted as the circadian pacemaker, it is critical to understand the neural mechanisms by which rhythmic information is transferred from the SCN to peripheral clocks. Here, we present the first comprehensive map of SCN efferent connections and suggest a molecular logic underlying these projections. The SCN projects broadly to most major regions of the brain, rather than solely to the hypothalamus and thalamus. The efferent projections from different subtypes of SCN neurons vary in distance and intensity, and blocking synaptic transmission of these circuits affects circadian rhythms in locomotion and feeding to different extents. We also developed a barcoding system to integrate retrograde tracing with in-situ sequencing, allowing us to link circuit anatomy and spatial patterns of gene expression. Analyses using this system revealed that brain regions functioning downstream of the SCN receive input from multiple neuropeptidergic cell types within the SCN, and that individual SCN neurons generally project to a single downstream brain region. This map of SCN efferent connections provides a critical foundation for future investigations into the neural circuits underlying SCN-mediated rhythms in physiology. Further, our new barcoded tracing method provides a tool for revealing the molecular logic of neuronal circuits within heterogeneous brain regions.
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Affiliation(s)
- Meimei Liao
- College of Biological Sciences, China Agriculture University, Beijing, 100193, China
- National Institute of Biological Sciences (NIBS), Beijing, 102206, China
| | - Xinwei Gao
- Chinese Institute for Brain Research, Beijing, 102206, China
| | - Chen Chen
- National Institute of Biological Sciences (NIBS), Beijing, 102206, China
| | - Qi Li
- National Institute of Biological Sciences (NIBS), Beijing, 102206, China
- Tsinghua Institute of Multidisciplinar^ Biomedical Research, Tsinghua University, Beijing, 102206, China
| | - Qingchun Guo
- Chinese Institute for Brain Research, Beijing, 102206, China
- School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China
| | - He Huang
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 401336, China
| | - Erquan Zhang
- National Institute of Biological Sciences (NIBS), Beijing, 102206, China
- Tsinghua Institute of Multidisciplinar^ Biomedical Research, Tsinghua University, Beijing, 102206, China
| | - Dapeng Ju
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 401336, China.
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49
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Bellanda M, Damulewicz M, Zambelli B, Costanzi E, Gregoris F, Mammi S, Tosatto SCE, Costa R, Minervini G, Mazzotta GM. A PDZ scaffolding/CaM-mediated pathway in Cryptochrome signaling. Protein Sci 2024; 33:e4914. [PMID: 38358255 PMCID: PMC10868427 DOI: 10.1002/pro.4914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/12/2023] [Accepted: 01/13/2024] [Indexed: 02/16/2024]
Abstract
Cryptochromes are cardinal constituents of the circadian clock, which orchestrates daily physiological rhythms in living organisms. A growing body of evidence points to their participation in pathways that have not traditionally been associated with circadian clock regulation, implying that cryptochromes may be subject to modulation by multiple signaling mechanisms. In this study, we demonstrate that human CRY2 (hCRY2) forms a complex with the large, modular scaffolding protein known as Multi-PDZ Domain Protein 1 (MUPP1). This interaction is facilitated by the calcium-binding protein Calmodulin (CaM) in a calcium-dependent manner. Our findings suggest a novel cooperative mechanism for the regulation of mammalian cryptochromes, mediated by calcium ions (Ca2+ ) and CaM. We propose that this Ca2+ /CaM-mediated signaling pathway may be an evolutionarily conserved mechanism that has been maintained from Drosophila to mammals, most likely in relation to its potential role in the broader context of cryptochrome function and regulation. Further, the understanding of cryptochrome interactions with other proteins and signaling pathways could lead to a better definition of its role within the intricate network of molecular interactions that govern circadian rhythms.
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Affiliation(s)
| | - Milena Damulewicz
- Department of Cell Biology and ImagingJagiellonian UniversityKrakówPoland
| | - Barbara Zambelli
- Department of Pharmacy and BiotechnologyUniversity of BolognaBolognaItaly
| | - Elisa Costanzi
- Department of Chemical SciencesUniversity of PadovaPadovaItaly
| | | | - Stefano Mammi
- Department of Chemical SciencesUniversity of PadovaPadovaItaly
| | | | - Rodolfo Costa
- Department of BiologyUniversity of PadovaPadovaItaly
- Institute of Neuroscience, National Research Council of Italy (CNR)PadovaItaly
- Chronobiology Section, Faculty of Health and Medical SciencesUniversity of SurreyGuildfordUK
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50
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Hiroki S, Yoshitane H. Ror homolog nhr-23 is essential for both developmental clock and circadian clock in C. elegans. Commun Biol 2024; 7:243. [PMID: 38418700 PMCID: PMC10902330 DOI: 10.1038/s42003-024-05894-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 02/07/2024] [Indexed: 03/02/2024] Open
Abstract
Animals have internal clocks that generate biological rhythms. In mammals, clock genes such as Period form the circadian clock to generate approximately 24-h biological rhythms. In C. elegans, the clock gene homologs constitute the "developmental clock", which has an 8-h period during larval development to determine the timing of molting. Thus, the ancestral circadian clock has been believed to evolve into the oscillator with a shorter period in C. elegans. However, circadian rhythms have also been observed in adult C. elegans, albeit relatively weak. This prompts the question: if the clock gene homologs drive the developmental rhythm with 8-h period, which genes generate the circadian rhythms in C. elegans? In this study, we discovered that nhr-23, a homolog of the mammalian circadian clock gene Ror, is essential for circadian transcriptional rhythms in adult C. elegans. Interestingly, nhr-23 was also known to be essential for the molting clock. The bilaterian ancestral circadian clock genes might have evolved to function over multiple periods depending on developmental contexts rather than a single 8-h period in C. elegans.
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Affiliation(s)
- Shingo Hiroki
- Tokyo Metropolitan Institute of Medical Sciences, Tokyo, Japan.
| | - Hikari Yoshitane
- Tokyo Metropolitan Institute of Medical Sciences, Tokyo, Japan.
- Department of Biological Sciences, School of Science, University of Tokyo, Tokyo, Japan.
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