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Gonzalez E, Lee MD, Tierney BT, Lipieta N, Flores P, Mishra M, Beckett L, Finkelstein A, Mo A, Walton P, Karouia F, Barker R, Jansen RJ, Green SJ, Weging S, Kelliher J, Singh NK, Bezdan D, Galazska J, Brereton NJB. Spaceflight alters host-gut microbiota interactions. NPJ Biofilms Microbiomes 2024; 10:71. [PMID: 39209868 PMCID: PMC11362537 DOI: 10.1038/s41522-024-00545-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024] Open
Abstract
The ISS rodent habitat has provided crucial insights into the impact of spaceflight on mammals, inducing symptoms characteristic of liver disease, insulin resistance, osteopenia, and myopathy. Although these physiological responses can involve the microbiome on Earth, host-microbiota interactions during spaceflight are still being elucidated. We explore murine gut microbiota and host gene expression in the colon and liver after 29 and 56 days of spaceflight using multiomics. Metagenomics revealed significant changes in 44 microbiome species, including relative reductions in bile acid and butyrate metabolising bacteria like Extibacter muris and Dysosmobacter welbionis. Functional prediction indicate over-representation of fatty acid and bile acid metabolism, extracellular matrix interactions, and antibiotic resistance genes. Host gene expression described corresponding changes to bile acid and energy metabolism, and immune suppression. These changes imply that interactions at the host-gut microbiome interface contribute to spaceflight pathology and that these interactions might critically influence human health and long-duration spaceflight feasibility.
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Affiliation(s)
- E Gonzalez
- Microbiome Unit, Canadian Centre for Computational Genomics, Department of Human Genetics, McGill University, Montréal, Canada
- Centre for Microbiome Research, McGill University, Montréal, Canada
| | - M D Lee
- Exobiology Branch, NASA Ames Research Centre, Moffett Field, CA, USA
- Blue Marble Space Institute of Science, Seattle, WA, USA
| | - B T Tierney
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - N Lipieta
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, 02142, USA
| | - P Flores
- BioServe Space Technologies, University of Colorado Boulder, Boulder, CO, USA
| | - M Mishra
- Grossman School of Medicine, New York University, New York, USA
| | - L Beckett
- University of Nottingham, Nottingham, NG7 2RD, UK
| | - A Finkelstein
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - A Mo
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - P Walton
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - F Karouia
- Exobiology Branch, NASA Ames Research Centre, Moffett Field, CA, USA
- Blue Marble Space Institute of Science, Seattle, WA, USA
- Centre for Space Medicine, Baylor College of Medicine, Houston, TX, USA
| | - R Barker
- Blue Marble Space Institute of Science, Seattle, WA, USA
- Yuri GmbH, Wiesentalstr. 40, 88074, Meckenbeuren, Germany
- University of Wisconsin-Madison, Madison, WI, USA
| | - R J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, USA
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, USA
| | - S J Green
- Genomics and Microbiome Core Facility, Rush University Medical Centre, 1653 W. Congress Parkway, Chicago, IL, 60612, USA
| | - S Weging
- Institute of Computer Science, Martin-Luther University Halle-Wittenberg, Halle, Germany
| | - J Kelliher
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - N K Singh
- Department of Industrial Relations, Division of Occupational Safety and Health, Oakland, USA
| | - D Bezdan
- University of Wisconsin-Madison, Madison, WI, USA
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
- NGS Competence Centre Tübingen (NCCT), University of Tübingen, Tübingen, Germany
| | - J Galazska
- Space Biosciences Research Branch, NASA Ames Research Centre, Moffett Field, CA, USA
| | - N J B Brereton
- School of Biology and Environmental Science, University College Dublin, Dublin, Ireland.
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Baumgartel K. Breastfeeding Measurement - Teleological Considerations: Human Milk Collection for Research. J Hum Lact 2024; 40:356-362. [PMID: 38855832 DOI: 10.1177/08903344241254827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
We discuss the evolution and composition of breast milk and briefly describe how mammalian evolution resulted in lactation, which played a crucial role in infant growth and development. We focus on three teleological factors that significantly contribute to breast milk composition: (1) biological sex at birth, (2) gestational age, and (3) circadian rhythms. We also explain how these factors lead to variability in human milk composition. We emphasize the importance of standardizing the definitions of "preterm" and "term" to accurately study the effects of gestational age on milk composition. Finally, we discuss the role of the circadian clock in regulating lactation and the impact of breast milk on fetal and infant sleep. Investigators may integrate these critical factors when designing a research study that involves the collection of breast milk samples. Teleological factors greatly influence milk composition, and these factors may be considered when designing a study that requires breast milk. We provide both the rationale and application of solutions to address these factors.
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Lv X, Peng W, Jia B, Lin P, Yang Z. Longitudinal association of sleep duration with possible sarcopenia: evidence from CHARLS. BMJ Open 2024; 14:e079237. [PMID: 38521528 PMCID: PMC10961493 DOI: 10.1136/bmjopen-2023-079237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 03/14/2024] [Indexed: 03/25/2024] Open
Abstract
OBJECTIVES There are limited data on the relationship between sleep duration and possible sarcopenia. Hence, this study aimed to investigate the associations of sleep duration with possible sarcopenia and its defining components based on the China Health and Retirement Longitudinal Study (CHARLS). DESIGN A retrospective cohort study. SETTING This study was conducted on participants aged over 45 years applying the 2011 baseline and 2015 follow-up survey from CHARLS covering 450 villages, 150 counties and 28 provinces. PARTICIPANTS Data from 5036 individuals (2568 men and 2468 women) free of possible sarcopenia at baseline were analysed. PRIMARY AND SECONDARY OUTCOME MEASURES The dose-response relationship between sleep duration and possible sarcopenia. RESULTS During 4 years of follow-up, 964 (19.14%) participants developed possible sarcopenia. Compared with participants who slept 6-8 hours per night, those with shorter sleep duration (<6 hours per night) were independently associated with 22% (OR, 1.22; 95% CI, 1.04 to 1.44) increased risk of developing possible sarcopenia and 27% (OR, 1.27; 95% CI, 1.04 to 1.57) increased risk of developing low handgrip strength after controlling for potential confounders. Long sleep duration (>8 hours per night) was not significantly associated with incident possible sarcopenia. The plots of restricted cubic splines exhibited an atypical inverse J-shaped association between sleep duration and possible sarcopenia. Subgroup analysis showed a stronger association between sleep duration and possible sarcopenia in participants aged 45-59 years and composed of male populations. CONCLUSIONS Short sleep duration was a potential risk factor for possible sarcopenia and low handgrip strength. The improvement of sleep duration should be considered a target in early preventive and administrative strategies against the development of handgrip strength decline and further reduced the occurrence of sarcopenia.
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Affiliation(s)
- Xiaoling Lv
- Zhejiang Provincial Key Lab of Geriatrics and Geriatrics Institute of Zhejiang Province, Zhejiang Hospital, Hangzhou, Zhejiang, China
| | - Wenjia Peng
- School of Public Health, Fudan University, Shanghai, China
| | - Bingbing Jia
- Zhejiang Provincial Key Lab of Geriatrics and Geriatrics Institute of Zhejiang Province, Zhejiang Hospital, Hangzhou, Zhejiang, China
| | - Ping Lin
- Department of Geriatrics, The Third People's Hospital of Hangzhou, Hangzhou, Zhejiang, China
| | - Zhouxin Yang
- Zhejiang Provincial Key Lab of Geriatrics and Geriatrics Institute of Zhejiang Province, Zhejiang Hospital, Hangzhou, Zhejiang, China
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Gan X, Zhao J, Li S, Kan G, Zhang Y, Wang B, Zhang P, Ma X, Tian H, Liao M, Ju D, Xu S, Chen X, Guo J. Simulated space environmental factors of weightlessness, noise and low atmospheric pressure differentially affect the diurnal rhythm and the gut microbiome. LIFE SCIENCES IN SPACE RESEARCH 2024; 40:115-125. [PMID: 38245336 DOI: 10.1016/j.lssr.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/21/2023] [Accepted: 09/19/2023] [Indexed: 01/22/2024]
Abstract
The circadian clock extensively regulates physiology and behavior. In space, astronauts encounter many environmental factors that are dramatically different from those on Earth; however, the effects of these factors on circadian rhythms and the mechanisms remain largely unknown. The present study aimed to investigate the changes in the mouse diurnal rhythm and gut microbiome under simulated space capsule conditions, including microgravity, noise and low atmospheric pressure (LAP). Noise and LAP were loaded in the capsule while the conditions in the animal room remained constant. The mice in the capsule showed disturbed locomotor rhythms and faster adaptation to a 6-h phase advance. RNA sequencing of hypothalamus samples containing the suprachiasmatic nucleus (SCN) revealed that microgravity simulated by hind limb unloading (HU) and exposure to noise and LAP led to decreases in the quantities of differentially expressed genes (DEGs), including circadian clock genes. Changes in the rhythmicity of genes implicated in pathways of cardiovascular deconditioning and more concentrated phases were found under HU or noise and LAP. Furthermore, 16S rRNA sequencing revealed dysbiosis in the gut microbiome, and noise and LAP may repress the temporal discrepancy in the microbiome community structure induced by microgravity. Changes in diurnal oscillations were observed in a number of gut bacteria with critical physiological consequences on metabolism and immunodefense. We also found that the superimposition of noise and LAP may repress normal changes in global gene expression and adaptation in the gut microbiome. Our data demonstrate that in addition to microgravity, exposure to noise and LAP affect the robustness of circadian rhythms and the community structure of the gut microbiome, and these factors may interfere with each other in their adaptation to respective conditions. These findings are important for furthering our understanding of the alterations in circadian rhythms in the complex environment of space.
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Affiliation(s)
- Xihui Gan
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Jianwei Zhao
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Silin Li
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Guanghan Kan
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Yin Zhang
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Bo Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Peng Zhang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xiaohong Ma
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
| | - Hongni Tian
- National Institute of Biological Sciences, Beijing, China
| | - Meimei Liao
- National Institute of Biological Sciences, Beijing, China
| | - Dapeng Ju
- National Institute of Biological Sciences, Beijing, China
| | - Shuihong Xu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xiaoping Chen
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China; National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing, China.
| | - Jinhu Guo
- Ministry of Education (MOE) Key Laboratory of Gene Function and Regulation, School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China.
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Soledad Lagunes-Castro MDL, Aguilera-Joaquín AR, Caba-Flores MD, López-Monteon A, Ramos-Ligonio A. Circadian Variation of Immune Cell Populations in Preterm Human Milk: A Preliminary Study. Breastfeed Med 2024; 19:129-133. [PMID: 38386993 DOI: 10.1089/bfm.2023.0214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Introduction: Breast milk contains both nutritional and non-nutritional components for the newborn, with some of the latter exhibiting marked diurnal variations in concentration. This study aimed to analyze the circadian behavior of specific immune cell populations and proinflammatory cytokines present in the transitional milk of premature infants. Methods: The study quantified cellular components, including stem and immune cells, using flow cytometry. Additionally, ELISA assays were employed to measure proinflammatory cytokine concentrations. Results: Flow cytometry analyses revealed a diurnal rise in the percentage of CD23+, CD32+, CD36+, CD2+, and Tγδ cell populations. Conversely, nocturnal increases were observed in the percentage of CD16+, CD19+, and CD4+ populations. Notably, CD3+ and CD8+ populations did not exhibit any rhythmic variations. Proinflammatory cytokine concentrations were found to be higher in daytime milk samples compared to those collected at night. Conclusion: This study demonstrates rhythmic fluctuations in both immune cell populations and proinflammatory cytokine concentrations within the transitional milk of premature mothers.
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Affiliation(s)
| | | | - Mario Daniel Caba-Flores
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Aracely López-Monteon
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Veracruz, México
| | - Angel Ramos-Ligonio
- LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Veracruz, México
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Zeng Y, Wu Y, Zhang Q, Xiao X. Crosstalk between glucagon-like peptide 1 and gut microbiota in metabolic diseases. mBio 2024; 15:e0203223. [PMID: 38055342 PMCID: PMC10790698 DOI: 10.1128/mbio.02032-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023] Open
Abstract
Gut microbiota exert influence on gastrointestinal mucosal permeability, bile acid metabolism, short-chain fatty acid synthesis, dietary fiber fermentation, and farnesoid X receptor/Takeda G protein-coupled receptor 5 (TGR5) signal transduction. The incretin glucagon-like peptide 1 (GLP-1) is mainly produced by L cells in the gut and regulates postprandial blood glucose. Changes in gut microbiota composition and function have been observed in obesity and type 2 diabetes (T2D). Meanwhile, the function and rhythm of GLP-1 have also been affected in subjects with obesity or T2D. Therefore, it is necessary to discuss the link between the gut microbiome and GLP-1. In this review, we describe the interaction between GLP-1 and the gut microbiota in metabolic diseases. On the one hand, gut microbiota metabolites stimulate GLP-1 secretion, and gut microbiota affect GLP-1 function and rhythm. On the other hand, the mechanism of action of GLP-1 on gut microbiota involves the inflammatory response. Additionally, we discuss the effects and mechanism of various interventions, such as prebiotics, probiotics, antidiabetic drugs, and bariatric surgery, on the crosstalk between gut microbiota and GLP-1. Finally, we stress that gut microbiota can be used as a target for metabolic diseases, and the clinical application of GLP-1 receptor agonists should be individualized.
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Grants
- 81870545, 81870579, 82170854, 81570715, 81170736 MOST | National Natural Science Foundation of China (NSFC)
- 7202163 Natural Science Foundation of Beijing Municipality (Beijing Natural Science Foundation)
- Z201100005520011 Beijing Municipal Science and Technology Commission, Adminitrative Commission of Zhongguancun Science Park
- 2017YFC1309603, 2021YFC2501700, 2016YFA0101002, 2018YFC2001100 MOST | National Key Research and Development Program of China (NKPs)
- 2019DCT-M-05 Beijing Municipal Human Resources and Social Security Bureau (BMHRSSB)
- 2017PT31036, 2018PT31021 Chinese Academy of Medical Sciences (CAMS)
- 2017PT32020, 2018PT32001 Chinese Academy of Medical Sciences (CAMS)
- CIFMS2017-I2M-1-008, CIFMS2021-I2M-1-002 Chinese Academy of Medical Sciences (CAMS)
- 2022-PUMCH- C-019, 2022-PUMCH-B-121 National High Level Hospital Clinical Research Funding
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Affiliation(s)
- Yuan Zeng
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Yifan Wu
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Qian Zhang
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xinhua Xiao
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Kumar V, Stewart JH. Immune Homeostasis: A Novel Example of Teamwork. Methods Mol Biol 2024; 2782:1-24. [PMID: 38622389 DOI: 10.1007/978-1-0716-3754-8_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
All living organisms must maintain homeostasis to survive, reproduce, and pass their traits on to the next generation. If homeostasis is not maintained, it can result in various diseases and ultimately lead to death. Physiologists have coined the term "homeostasis" to describe this process. With the emergence of immunology as a separate branch of medicine, the concept of immune homeostasis has been introduced. Maintaining immune homeostasis is crucial to support overall homeostasis through different immunological and non-immunological routes. Any changes in the immune system can lead to chronic inflammatory or autoimmune diseases, immunodeficiency diseases, frequent infections, and cancers. Ongoing scientific advances are exploring new avenues in immunology and immune homeostasis maintenance. This chapter introduces the concept of immune homeostasis and its maintenance through different mechanisms.
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Affiliation(s)
- Vijay Kumar
- Department of Surgery, Laboratory of Tumor Immunology and Immunotherapy, Medical Education Building-C, Morehouse School of Medicine, Atlanta, GA, USA
| | - John H Stewart
- Department of Surgery, Laboratory of Tumor Immunology and Immunotherapy, Medical Education Building-C, Morehouse School of Medicine, Atlanta, GA, USA.
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Pang X, Chen L, Xu G. New Awareness of the Interplay Between the Gut Microbiota and Circadian Rhythms. Pol J Microbiol 2023; 72:355-363. [PMID: 38095865 PMCID: PMC10725168 DOI: 10.33073/pjm-2023-046] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/27/2023] [Indexed: 12/17/2023] Open
Abstract
Circadian rhythms influence various aspects of the biology and physiology of the host, such as food intake and sleep/wake cycles. In recent years, an increasing amount of genetic and epidemiological data has shown that the light/dark cycle is the main cue that regulates circadian rhythms. Other factors, including sleep/wake cycles and food intake, have necessary effects on the composition and rhythms of the gut microbiota. Interestingly, the gut microbiota can affect the circadian rhythm of hosts in turn through contact-dependent and contact-independent mechanisms. Furthermore, the gut microbiota has been shown to regulate the sleep/wake cycles through gut-brain-microbiota interaction. In addition to diabetes, the gut microbiota can also intervene in the progression of neuro- degenerative diseases through the gut-brain-microbiota interaction, and also in other diseases such as hypertension and rheumatoid arthritis, where it is thought to have a spare therapeutic potential. Even though fecal microbiota transplantation has good potential for treating many diseases, the risk of spreading intestinal pathogens should not be ignored.
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Affiliation(s)
- Xiaoxiao Pang
- Department of Clinical Laboratory, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Long Chen
- Department of Clinical Laboratory, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Guoxin Xu
- Department of Clinical Laboratory, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
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9
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Wang Y, Du W, Hu X, Yu X, Guo C, Jin X, Wang W. Targeting the blood-brain barrier to delay aging-accompanied neurological diseases by modulating gut microbiota, circadian rhythms, and their interplays. Acta Pharm Sin B 2023; 13:4667-4687. [PMID: 38045038 PMCID: PMC10692395 DOI: 10.1016/j.apsb.2023.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/05/2023] [Accepted: 08/02/2023] [Indexed: 12/05/2023] Open
Abstract
The blood-brain barrier (BBB) impairment plays a crucial role in the pathological processes of aging-accompanied neurological diseases (AAND). Meanwhile, circadian rhythms disruption and gut microbiota dysbiosis are associated with increased morbidity of neurological diseases in the accelerated aging population. Importantly, circadian rhythms disruption and gut microbiota dysbiosis are also known to induce the generation of toxic metabolites and pro-inflammatory cytokines, resulting in disruption of BBB integrity. Collectively, this provides a new perspective for exploring the relationship among circadian rhythms, gut microbes, and the BBB in aging-accompanied neurological diseases. In this review, we focus on recent advances in the interplay between circadian rhythm disturbances and gut microbiota dysbiosis, and their potential roles in the BBB disruption that occurs in AAND. Based on existing literature, we discuss and propose potential mechanisms underlying BBB damage induced by dysregulated circadian rhythms and gut microbiota, which would serve as the basis for developing potential interventions to protect the BBB in the aging population through targeting the BBB by exploiting its links with gut microbiota and circadian rhythms for treating AAND.
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Affiliation(s)
- Yanping Wang
- Department of Neurology, the Second Affiliated Hospital of Jiaxing City, Jiaxing 314000, China
| | - Weihong Du
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Xiaoyan Hu
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Xin Yu
- Bengbu Medical College (Department of Neurology, the Second Hospital of Jiaxing City), Jiaxing 233030, China
| | - Chun Guo
- School of Biosciences, University of Sheffield, Sheffield S10 2TN, UK
| | - Xinchun Jin
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Department of Histology and Embryology, School of Basic Medical Sciences, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Wei Wang
- Department of Physiology and Pathophysiology, Capital Medical University, Beijing 100069, China
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10
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Coskun A, Zarepour A, Zarrabi A. Physiological Rhythms and Biological Variation of Biomolecules: The Road to Personalized Laboratory Medicine. Int J Mol Sci 2023; 24:ijms24076275. [PMID: 37047252 PMCID: PMC10094461 DOI: 10.3390/ijms24076275] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
The concentration of biomolecules in living systems shows numerous systematic and random variations. Systematic variations can be classified based on the frequency of variations as ultradian (<24 h), circadian (approximately 24 h), and infradian (>24 h), which are partly predictable. Random biological variations are known as between-subject biological variations that are the variations among the set points of an analyte from different individuals and within-subject biological variation, which is the variation of the analyte around individuals’ set points. The random biological variation cannot be predicted but can be estimated using appropriate measurement and statistical procedures. Physiological rhythms and random biological variation of the analytes could be considered the essential elements of predictive, preventive, and particularly personalized laboratory medicine. This systematic review aims to summarize research that have been done about the types of physiological rhythms, biological variations, and their effects on laboratory tests. We have searched the PubMed and Web of Science databases for biological variation and physiological rhythm articles in English without time restrictions with the terms “Biological variation, Within-subject biological variation, Between-subject biological variation, Physiological rhythms, Ultradian rhythms, Circadian rhythm, Infradian rhythms”. It was concluded that, for effective management of predicting, preventing, and personalizing medicine, which is based on the safe and valid interpretation of patients’ laboratory test results, both physiological rhythms and biological variation of the measurands should be considered simultaneously.
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11
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Salminen A. Activation of aryl hydrocarbon receptor (AhR) in Alzheimer's disease: role of tryptophan metabolites generated by gut host-microbiota. J Mol Med (Berl) 2023; 101:201-222. [PMID: 36757399 PMCID: PMC10036442 DOI: 10.1007/s00109-023-02289-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/19/2022] [Accepted: 01/17/2023] [Indexed: 02/10/2023]
Abstract
Gut microbiota in interaction with intestinal host tissues influences many brain functions and microbial dysbiosis has been linked with brain disorders, such as neuropsychiatric conditions and Alzheimer's disease (AD). L-tryptophan metabolites and short-chained fatty acids (SCFA) are major messengers in the microbiota-brain axis. Aryl hydrocarbon receptors (AhR) are main targets of tryptophan metabolites in brain microvessels which possess an enriched expression of AhR protein. The Ah receptor is an evolutionarily conserved, ligand-activated transcription factor which is not only a sensor of xenobiotic toxins but also a pleiotropic regulator of both developmental processes and age-related tissue degeneration. Major microbiota-produced tryptophan metabolites involve indole derivatives, e.g., indole 3-pyruvic acid, indole 3-acetaldehyde, and indoxyl sulfate, whereas indoleamine and tryptophan 2,3-dioxygenases (IDO/TDO) of intestine host cells activate the kynurenine (KYN) pathway generating KYN metabolites, many of which are activators of AhR signaling. Chronic kidney disease (CKD) increases the serum level of indoxyl sulfate which promotes AD pathogenesis, e.g., it disrupts integrity of blood-brain barrier (BBB) and impairs cognitive functions. Activation of AhR signaling disturbs vascular homeostasis in brain; (i) it controls blood flow via the renin-angiotensin system, (ii) it inactivates endothelial nitric oxide synthase (eNOS), thus impairing NO production and vasodilatation, and (iii) it induces oxidative stress, stimulates inflammation, promotes cellular senescence, and enhances calcification of vascular walls. All these alterations are evident in cerebral amyloid angiopathy (CAA) in AD pathology. Moreover, AhR signaling can disturb circadian regulation and probably affect glymphatic flow. It seems plausible that dysbiosis of gut microbiota impairs the integrity of BBB via the activation of AhR signaling and thus aggravates AD pathology. KEY MESSAGES: Dysbiosis of gut microbiota is associated with dementia and Alzheimer's disease. Tryptophan metabolites are major messengers from the gut host-microbiota to brain. Tryptophan metabolites activate aryl hydrocarbon receptor (AhR) signaling in brain. The expression of AhR protein is enriched in brain microvessels and blood-brain barrier. Tryptophan metabolites disturb brain vascular integrity via AhR signaling. Dysbiosis of gut microbiota promotes inflammation and AD pathology via AhR signaling.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio, 70211, Finland.
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12
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Xiang Q, Liu Y, Wu Z, Wang R, Zhang X. New hints for improving sleep: Tea polyphenols mediate gut microbiota to regulate circadian disturbances. FOOD FRONTIERS 2023. [DOI: 10.1002/fft2.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Qiao Xiang
- Department of Food Science and Engineering Ningbo University Ningbo P.R. China
| | - Yanan Liu
- Department of Food Science and Engineering Ningbo University Ningbo P.R. China
| | - Zufang Wu
- Department of Food Science and Engineering Ningbo University Ningbo P.R. China
| | - Rui Wang
- Key Laboratory of Bio‐Resource and Eco‐Environment of Ministry of Education, College of Life Sciences Sichuan University Chengdu P.R. China
| | - Xin Zhang
- Department of Food Science and Engineering Ningbo University Ningbo P.R. China
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13
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Giannos P, Prokopidis K, Isanejad M, Wright HL. Markers of immune dysregulation in response to the ageing gut: insights from aged murine gut microbiota transplants. BMC Gastroenterol 2022; 22:533. [PMID: 36544093 PMCID: PMC9773626 DOI: 10.1186/s12876-022-02613-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Perturbations in the composition and diversity of the gut microbiota are accompanied by a decline in immune homeostasis during ageing, characterized by chronic low-grade inflammation and enhanced innate immunity. Genetic insights into the interaction between age-related alterations in the gut microbiota and immune function remain largely unexplored. METHODS We investigated publicly available transcriptomic gut profiles of young germ-free mouse hosts transplanted with old donor gut microbiota to identify immune-associated differentially expressed genes (DEGs). Literature screening of the Gene Expression Omnibus and PubMed identified one murine (Mus musculus) gene expression dataset (GSE130026) that included small intestine tissues from young (5-6 weeks old) germ-free mice hosts that were compared following 8 weeks after transplantation with either old (~ 24-month old; n = 5) or young (5-6 weeks old; n = 4) mouse donor gut microbiota. RESULTS A total of 112 differentially expressed genes (DEGs) were identified and used to construct a gut network of encoded proteins, in which DEGs were functionally annotated as being involved in an immune process based on gene ontology. The association between the expression of immune-process DEGs and abundance of immune infiltrates from gene signatures in normal colorectal tissues was estimated from The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) project. The analysis revealed a 25-gene signature of immune-associated DEGs and their expression profile was positively correlated with naïve T-cell, effector memory T-cell, central memory T-cell, resident memory T-cell, exhausted T-cell, resting Treg T-cell, effector Treg T-cell and Th1-like colorectal gene signatures. Conclusions These genes may have a potential role as candidate markers of immune dysregulation during gut microbiota ageing. Moreover, these DEGs may provide insights into the altered immune response to microbiota in the ageing gut, including reduced antigen presentation and alterations in cytokine and chemokine production.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos Prokopidis
- Society of Meta-Research and Biomedical Innovation, London, UK.,Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Masoud Isanejad
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Helen L Wright
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK.
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14
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Genomic analysis of intestinal flora and liver genes in mice with circadian rhythm disorders fed with flavonoids from Sedum aizoon L. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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15
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Liu J, Tan Y, Cheng H, Zhang D, Feng W, Peng C. Functions of Gut Microbiota Metabolites, Current Status and Future Perspectives. Aging Dis 2022; 13:1106-1126. [PMID: 35855347 PMCID: PMC9286904 DOI: 10.14336/ad.2022.0104] [Citation(s) in RCA: 123] [Impact Index Per Article: 61.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/04/2022] [Indexed: 12/12/2022] Open
Abstract
Gut microbiota, a collection of microorganisms that live within gastrointestinal tract, provides crucial signaling metabolites for the physiological of hosts. In healthy state, gut microbiota metabolites are helpful for maintaining the basic functions of hosts, whereas disturbed production of these metabolites can lead to numerous diseases such as metabolic diseases, cardiovascular diseases, gastrointestinal diseases, neurodegenerative diseases, and cancer. Although there are many reviews about the specific mechanisms of gut microbiota metabolites on specific diseases, there is no comprehensive summarization of the functions of these metabolites. In this Opinion, we discuss the knowledge of gut microbiota metabolites including the types of gut microbiota metabolites and their ways acting on targets. In addition, we summarize their physiological and pathologic functions in health and diseases, such as shaping the composition of gut microbiota and acting as nutrition. This paper can be helpful for understanding the roles of gut microbiota metabolites and thus provide guidance for developing suitable therapeutic strategies to combat microbial-driven diseases and improve health.
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Affiliation(s)
- Juan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yuzhu Tan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Hao Cheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Dandan Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Wuwen Feng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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16
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Biological Clock and Inflammatory Bowel Disease Review: From the Standpoint of the Intestinal Barrier. Gastroenterol Res Pract 2022; 2022:2939921. [PMID: 35320972 PMCID: PMC8938076 DOI: 10.1155/2022/2939921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 11/29/2022] Open
Abstract
Inflammatory bowel disease is a group of chronic, recurrent, nonspecific inflammatory diseases of the intestine that severely affect the quality of life of patients. The pathogenesis of this disease is caused by complex and interactive neural networks composed of factors such as genetic susceptibility, external environment, immune disorders, and intestinal barrier dysfunction. It is well known that there is a strong link between environmental stressors (also known as circadian clocks) that can influence circadian changes and inflammatory bowel disease. Among them, the biological clock is involved in the pathogenesis of inflammatory bowel disease by affecting the function of the intestinal barrier. Therefore, this review is aimed at systematically summarizing the latest research progress on the role of the circadian clock in the pathogenesis of inflammatory bowel disease by affecting intestinal barrier functions (intestinal mechanical barrier, intestinal immune barrier, intestinal microecological barrier, and intestinal chemical barrier) and the potential clinical value of clock genes in the management of inflammatory bowel disease, for the application of circadian clock therapy in the management of inflammatory bowel disease and then the benefit to the majority of patients.
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17
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Cui Y, Yin Y, Li S, Wu Z, Xie Y, Qian Q, Yang H, Li X. Apple polyphenol extract modulates bile acid metabolism and gut microbiota by regulating the circadian rhythms in daytime-restricted high fat diet feeding C57BL/6 male mice. Food Funct 2022; 13:2805-2822. [PMID: 35174840 DOI: 10.1039/d1fo04116a] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The homeostasis of circadian clock linked to bile acid (BA) metabolism and gut microbiota has profound benefits in maintaining the health status of the host. The aim of this study was to investigate the prevention and regulation of apple polyphenol extract (APE) on BA metabolism and gut microbiota by means of modulation of circadian rhythms in mice. Eighty male C57BL/6 mice were randomized into four groups: 24-hour ad libitum standard chow group (AC), ad libitum HFD group (AF), restricted 12 h daytime HFD feeding group (DF), and daytime HFD feeding with APE treatment group (DP). Five weeks later, the mice were sacrificed at 6 h intervals over a 24 h period. The results showed that APE decreased body weight and induced daily rhythms of Cry1 and Rorα in the suprachiasmatic nucleus (SCN) and Clock, Cry1 and Cry2 in the ileum in daytime HFD mice. APE significantly increased the expression of hepatic FXR at ZT0 and BSEP at ZT12 and inhibited the expression of ileac FXR at ZT12, reduced levels of fecal TBAs, secondary BAs, and unconjugated BAs at ZT0. Meanwhile, APE regulated the diversity and composition of the gut microbiota, and increased the abundance of probiotics. Therefore, our work revealed that APE as a clock-regulating natural compound could modulate BA metabolism and gut microbiota and protect against circadian disruption in a clock-dependent manner.
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Affiliation(s)
- Yuan Cui
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.
| | - Yan Yin
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.
| | - Shilan Li
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.
| | - Zhengli Wu
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.
| | - Yisha Xie
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.
| | - Qingfan Qian
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.
| | - Hao Yang
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China.
| | - Xinli Li
- School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China. .,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, Jiangsu, P.R. China
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18
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Louis M, Staiano P, Micalo L, Chaudary N. Cystic Fibrosis and Sleep Circadian Rhythms. Pulm Ther 2022; 8:139-147. [PMID: 35149967 PMCID: PMC9098776 DOI: 10.1007/s41030-022-00184-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/24/2022] [Indexed: 11/21/2022] Open
Abstract
Cystic fibrosis (CF) is due to a mutation in the cystic fibrosis transmembrane conductance regulator gene (CFTR), which leads to unusual water and chloride secretion across epithelial surfaces. The lungs are responsible for most morbidity, though other organs are frequently affected. Sleep abnormalities have long been recognized in CF. Abnormal ventilation and oxygenation, sinus disease, deconditioning due to muscle weakness and recurrent infections, and inflammation have been thought to play a role in sleep disorders in CF. However, there is evidence that CFTR gene dysregulation can affect circadian rhythms in CF. Early recognition and treatment of circadian rhythms may improve outcomes in CF.
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Affiliation(s)
- Mariam Louis
- Department of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Jacksonville, FL, USA
| | - Peter Staiano
- Department of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Jacksonville, FL, USA
| | - Lavender Micalo
- Division of Pulmonary Disease and Critical Care Medicine, Department of Medicine, Adult Cystic Fibrosis Center, Virginia Commonwealth University, 1200 East Broad Street, Box 980050, Richmond, VA, 23298, USA
| | - Nauman Chaudary
- Division of Pulmonary Disease and Critical Care Medicine, Department of Medicine, Adult Cystic Fibrosis Center, Virginia Commonwealth University, 1200 East Broad Street, Box 980050, Richmond, VA, 23298, USA.
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19
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Using Microbiome-Based Approaches to Deprogram Chronic Disorders and Extend the Healthspan following Adverse Childhood Experiences. Microorganisms 2022; 10:microorganisms10020229. [PMID: 35208684 PMCID: PMC8879770 DOI: 10.3390/microorganisms10020229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/04/2022] [Accepted: 01/19/2022] [Indexed: 12/01/2022] Open
Abstract
Adverse childhood experiences (ACEs), which can include child trafficking, are known to program children for disrupted biological cycles, premature aging, microbiome dysbiosis, immune-inflammatory misregulation, and chronic disease multimorbidity. To date, the microbiome has not been a major focus of deprogramming efforts despite its emerging role in every aspect of ACE-related dysbiosis and dysfunction. This article examines: (1) the utility of incorporating microorganism-based, anti-aging approaches to combat ACE-programmed chronic diseases (also known as noncommunicable diseases and conditions, NCDs) and (2) microbiome regulation of core systems biology cycles that affect NCD comorbid risk. In this review, microbiota influence over three key cyclic rhythms (circadian cycles, the sleep cycle, and the lifespan/longevity cycle) as well as tissue inflammation and oxidative stress are discussed as an opportunity to deprogram ACE-driven chronic disorders. Microbiota, particularly those in the gut, have been shown to affect host–microbe interactions regulating the circadian clock, sleep quality, as well as immune function/senescence, and regulation of tissue inflammation. The microimmunosome is one of several systems biology targets of gut microbiota regulation. Furthermore, correcting misregulated inflammation and increased oxidative stress is key to protecting telomere length and lifespan/longevity and extending what has become known as the healthspan. This review article concludes that to reverse the tragedy of ACE-programmed NCDs and premature aging, managing the human holobiont microbiome should become a routine part of healthcare and preventative medicine across the life course.
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20
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Ellison AR, Wilcockson D, Cable J. Circadian dynamics of the teleost skin immune-microbiome interface. MICROBIOME 2021; 9:222. [PMID: 34782020 PMCID: PMC8594171 DOI: 10.1186/s40168-021-01160-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 08/28/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND Circadian rhythms of host immune activity and their microbiomes are likely pivotal to health and disease resistance. The integration of chronotherapeutic approaches to disease mitigation in managed animals, however, is yet to be realised. In aquaculture, light manipulation is commonly used to enhance growth and control reproduction but may have unknown negative consequences for animal health. Infectious diseases are a major barrier to sustainable aquaculture and understanding the circadian dynamics of fish immunity and crosstalk with the microbiome is urgently needed. RESULTS Here, using rainbow trout (Oncorhynchus mykiss) as a model, we combine 16S rRNA metabarcoding, metagenomic sequencing and direct mRNA quantification methods to simultaneously characterise the circadian dynamics of skin clock and immune gene expression, and daily changes of skin microbiota. We demonstrate daily rhythms in fish skin immune expression and microbiomes, which are modulated by photoperiod and parasitic lice infection. We identify putative associations of host clock and immune gene profiles with microbial composition. Our results suggest circadian perturbation, that shifts the magnitude and timing of immune and microbiota activity, is detrimental to fish health. CONCLUSIONS The substantial circadian dynamics and fish host expression-microbiome relationships we find represent a valuable foundation for investigating the utility of chronotherapies in aquaculture, and more broadly contributes to our understanding of the role of microbiomes in circadian health of vertebrates. Video Abstract.
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Affiliation(s)
- Amy R Ellison
- School of Natural Sciences, Bangor University, Bangor, LL57 2DG, UK.
| | - David Wilcockson
- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth, SY23 3DA, UK
| | - Jo Cable
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
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21
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Nakano T, Chiang KC, Chen CC, Chen PJ, Lai CY, Hsu LW, Ohmori N, Goto T, Chen CL, Goto S. Sunlight Exposure and Phototherapy: Perspectives for Healthy Aging in an Era of COVID-19. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182010950. [PMID: 34682694 PMCID: PMC8535353 DOI: 10.3390/ijerph182010950] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 01/10/2023]
Abstract
Most humans depend on sunlight exposure to satisfy their requirements for vitamin D3. However, the destruction of the ozone layer in the past few decades has increased the risk of skin aging and wrinkling caused by excessive exposure to ultraviolet (UV) radiation, which may also promote the risk of skin cancer development. The promotion of public health recommendations to avoid sunlight exposure would reduce the risk of skin cancer, but it would also enhance the risk of vitamin D3 insufficiency/deficiency, which may cause disease development and progression. In addition, the ongoing global COVID-19 pandemic may further reduce sunlight exposure due to stay-at-home policies, resulting in difficulty in active and healthy aging. In this review article, we performed a literature search in PubMed and provided an overview of basic and clinical data regarding the impact of sunlight exposure and vitamin D3 on public health. We also discuss the potential mechanisms and clinical value of phototherapy with a full-spectrum light (notably blue, red, and near-infrared light) as an alternative to sunlight exposure, which may contribute to combating COVID-19 and promoting active and healthy aging in current aged/superaged societies.
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Affiliation(s)
- Toshiaki Nakano
- Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (K.-C.C.); (P.-J.C.); (L.-W.H.)
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan; (C.-C.C.); (C.-Y.L.); (C.-L.C.)
- Correspondence: (T.N.); (S.G.); Tel.: +886-7-731-7123 (T.N.); +81-975-53-2165 (S.G.)
| | - Kuei-Chen Chiang
- Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (K.-C.C.); (P.-J.C.); (L.-W.H.)
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan; (C.-C.C.); (C.-Y.L.); (C.-L.C.)
| | - Chien-Chih Chen
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan; (C.-C.C.); (C.-Y.L.); (C.-L.C.)
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
| | - Po-Jung Chen
- Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (K.-C.C.); (P.-J.C.); (L.-W.H.)
| | - Chia-Yun Lai
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan; (C.-C.C.); (C.-Y.L.); (C.-L.C.)
| | - Li-Wen Hsu
- Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (K.-C.C.); (P.-J.C.); (L.-W.H.)
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan; (C.-C.C.); (C.-Y.L.); (C.-L.C.)
| | - Naoya Ohmori
- Faculty of Nursing, Josai International University, Togane 283-8555, Japan; (N.O.); (T.G.)
- Kazusa Institute for Drug Discovery, Josai International University, Togane 283-8555, Japan
| | - Takeshi Goto
- Faculty of Nursing, Josai International University, Togane 283-8555, Japan; (N.O.); (T.G.)
- Kazusa Institute for Drug Discovery, Josai International University, Togane 283-8555, Japan
| | - Chao-Long Chen
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan; (C.-C.C.); (C.-Y.L.); (C.-L.C.)
| | - Shigeru Goto
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan; (C.-C.C.); (C.-Y.L.); (C.-L.C.)
- Faculty of Nursing, Josai International University, Togane 283-8555, Japan; (N.O.); (T.G.)
- Nobeoka Medical Check Center, Fukuoka Institution of Occupational Health, Nobeoka 882-0872, Japan
- Correspondence: (T.N.); (S.G.); Tel.: +886-7-731-7123 (T.N.); +81-975-53-2165 (S.G.)
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22
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Nyholm SV, McFall-Ngai MJ. A lasting symbiosis: how the Hawaiian bobtail squid finds and keeps its bioluminescent bacterial partner. Nat Rev Microbiol 2021; 19:666-679. [PMID: 34089010 PMCID: PMC8440403 DOI: 10.1038/s41579-021-00567-y] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2021] [Indexed: 01/08/2023]
Abstract
For more than 30 years, the association between the Hawaiian bobtail squid, Euprymna scolopes, and the bioluminescent bacterium Vibrio fischeri has been studied as a model system for understanding the colonization of animal epithelia by symbiotic bacteria. The squid-vibrio light-organ system provides the exquisite resolution only possible with the study of a binary partnership. The impact of this relationship on the partners' biology has been broadly characterized, including their ecology and evolutionary biology as well as the underlying molecular mechanisms of symbiotic dynamics. Much has been learned about the factors that foster initial light-organ colonization, and more recently about the maturation and long-term maintenance of the association. This Review synthesizes the results of recent research on the light-organ association and also describes the development of new horizons for E. scolopes as a model organism that promises to inform biology and biomedicine about the basic nature of host-microorganism interactions.
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Affiliation(s)
- Spencer V Nyholm
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, USA.
| | - Margaret J McFall-Ngai
- Pacific Biosciences Research Center, Kewalo Marine Laboratory, University of Hawai'i at Mānoa, Honolulu, HI, USA.
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Abstract
We here introduce a Review Series focussing on the important influences circadian rhythms have on immune responses. The three reviews in this series, expertly curated by Rachel Edgar, discuss how the cyclic oscillations in our cellular clock affect the innate and adaptive immune response, and how interactions with the intestinal microbiota, themselves subject to daily oscillations, also influence immune responses. As we understand more about these mechanisms, by which chronobiology contributes to immunology, it is becoming increasingly clear that they have important functions in maintaining health, influence autoimmunity and may contribute to the effectiveness of vaccinations.
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Affiliation(s)
- Simon Milling
- Institute of Immunity, Infection, and InflammationUniversity of GlasgowGlasgowUK
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