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Doney E, Dion-Albert L, Coulombe-Rozon F, Osborne N, Bernatchez R, Paton SE, Kaufmann FN, Agomma RO, Solano JL, Gaumond R, Dudek KA, Szyszkowicz JK, Lebel M, Doyen A, Durand A, Lavoie-Cardinal F, Audet MC, Menard C. Chronic Stress Exposure Alters the Gut Barrier: Sex-Specific Effects on Microbiota and Jejunum Tight Junctions. Biol Psychiatry Glob Open Sci 2024; 4:213-228. [PMID: 38306213 PMCID: PMC10829561 DOI: 10.1016/j.bpsgos.2023.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 02/04/2024] Open
Abstract
Background Major depressive disorder (MDD) is the leading cause of disability worldwide. Of individuals with MDD, 30% to 50% are unresponsive to common antidepressants, highlighting untapped causal biological mechanisms. Dysfunction in the microbiota-gut-brain axis has been implicated in MDD pathogenesis. Exposure to chronic stress disrupts blood-brain barrier integrity; still, little is known about intestinal barrier function in these conditions, particularly for the small intestine, where absorption of most foods and drugs takes place. Methods We investigated how chronic social or variable stress, two mouse models of depression, impact the jejunum intestinal barrier in males and females. Mice were subjected to stress paradigms followed by analysis of gene expression profiles of intestinal barrier-related targets, fecal microbial composition, and blood-based markers. Results Altered microbial populations and changes in gene expression of jejunum tight junctions were observed depending on the type and duration of stress, with sex-specific effects. We used machine learning to characterize in detail morphological tight junction properties, identifying a cluster of ruffled junctions in stressed animals. Junctional ruffling is associated with inflammation, so we evaluated whether lipopolysaccharide injection recapitulates stress-induced changes in the jejunum and observed profound sex differences. Finally, lipopolysaccharide-binding protein, a marker of gut barrier leakiness, was associated with stress vulnerability in mice, and translational value was confirmed on blood samples from women with MDD. Conclusions Our results provide evidence that chronic stress disrupts intestinal barrier homeostasis in conjunction with the manifestation of depressive-like behaviors in a sex-specific manner in mice and, possibly, in human depression.
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Affiliation(s)
- Ellen Doney
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Laurence Dion-Albert
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Francois Coulombe-Rozon
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Natasha Osborne
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Renaud Bernatchez
- Department of Computer Science and Software Engineering and Department of Electrical and Computer Engineering, Université Laval, Québec City, Québec, Canada
| | - Sam E.J. Paton
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Fernanda Neutzling Kaufmann
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Roseline Olory Agomma
- Department of Computer Science and Software Engineering and Department of Electrical and Computer Engineering, Université Laval, Québec City, Québec, Canada
| | - José L. Solano
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Raphael Gaumond
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Katarzyna A. Dudek
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Joanna Kasia Szyszkowicz
- Douglas Mental Health University Institute and Department of Psychiatry, McGill University, Montréal, Québec, Canada
| | - Manon Lebel
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Alain Doyen
- Department of Food Science, Institute of Nutrition and Functional Foods, Université Laval, Québec City, Québec, Canada
| | - Audrey Durand
- Department of Computer Science and Software Engineering and Department of Electrical and Computer Engineering, Université Laval, Québec City, Québec, Canada
| | - Flavie Lavoie-Cardinal
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
| | - Marie-Claude Audet
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
- School of Nutrition Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Caroline Menard
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Québec City, Québec, Canada
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Doney E, Bernatchez R, Clavet-Fournier V, Dudek KA, Dion-Albert L, Lavoie-Cardinal F, Menard C. Characterizing the blood-brain barrier and gut barrier with super-resolution imaging: opportunities and challenges. Neurophotonics 2023; 10:044410. [PMID: 37799760 PMCID: PMC10548114 DOI: 10.1117/1.nph.10.4.044410] [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] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/07/2023]
Abstract
Brain and gut barriers have been receiving increasing attention in health and diseases including in psychiatry. Recent studies have highlighted changes in the blood-brain barrier and gut barrier structural properties, notably a loss of tight junctions, leading to hyperpermeability, passage of inflammatory mediators, stress vulnerability, and the development of depressive behaviors. To decipher the cellular processes actively contributing to brain and gut barrier function in health and disease, scientists can take advantage of neurophotonic tools and recent advances in super-resolution microscopy techniques to complement traditional imaging approaches like confocal and electron microscopy. Here, we summarize the challenges, pros, and cons of these innovative approaches, hoping that a growing number of scientists will integrate them in their study design exploring barrier-related properties and mechanisms.
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Affiliation(s)
- Ellen Doney
- Université Laval, Department of Psychiatry and Neuroscience, Faculty of Medicine, Quebec City, Québec, Canada
- CERVO Brain Research Center, Québec City, Québec, Canada
| | - Renaud Bernatchez
- CERVO Brain Research Center, Québec City, Québec, Canada
- Institute for Intelligence and Data, Québec City, Québec, Canada
| | | | - Katarzyna A. Dudek
- Université Laval, Department of Psychiatry and Neuroscience, Faculty of Medicine, Quebec City, Québec, Canada
- CERVO Brain Research Center, Québec City, Québec, Canada
| | - Laurence Dion-Albert
- Université Laval, Department of Psychiatry and Neuroscience, Faculty of Medicine, Quebec City, Québec, Canada
- CERVO Brain Research Center, Québec City, Québec, Canada
| | - Flavie Lavoie-Cardinal
- Université Laval, Department of Psychiatry and Neuroscience, Faculty of Medicine, Quebec City, Québec, Canada
- CERVO Brain Research Center, Québec City, Québec, Canada
- Institute for Intelligence and Data, Québec City, Québec, Canada
| | - Caroline Menard
- Université Laval, Department of Psychiatry and Neuroscience, Faculty of Medicine, Quebec City, Québec, Canada
- CERVO Brain Research Center, Québec City, Québec, Canada
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3
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Doney E, Cadoret A, Dion-Albert L, Lebel M, Menard C. Inflammation-driven brain and gut barrier dysfunction in stress and mood disorders. Eur J Neurosci 2021; 55:2851-2894. [PMID: 33876886 PMCID: PMC9290537 DOI: 10.1111/ejn.15239] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 03/18/2021] [Accepted: 04/12/2021] [Indexed: 02/06/2023]
Abstract
Regulation of emotions is generally associated exclusively with the brain. However, there is evidence that peripheral systems are also involved in mood, stress vulnerability vs. resilience, and emotion‐related memory encoding. Prevalence of stress and mood disorders such as major depression, bipolar disorder, and post‐traumatic stress disorder is increasing in our modern societies. Unfortunately, 30%–50% of individuals respond poorly to currently available treatments highlighting the need to further investigate emotion‐related biology to gain mechanistic insights that could lead to innovative therapies. Here, we provide an overview of inflammation‐related mechanisms involved in mood regulation and stress responses discovered using animal models. If clinical studies are available, we discuss translational value of these findings including limitations. Neuroimmune mechanisms of depression and maladaptive stress responses have been receiving increasing attention, and thus, the first part is centered on inflammation and dysregulation of brain and circulating cytokines in stress and mood disorders. Next, recent studies supporting a role for inflammation‐driven leakiness of the blood–brain and gut barriers in emotion regulation and mood are highlighted. Stress‐induced exacerbated inflammation fragilizes these barriers which become hyperpermeable through loss of integrity and altered biology. At the gut level, this could be associated with dysbiosis, an imbalance in microbial communities, and alteration of the gut–brain axis which is central to production of mood‐related neurotransmitter serotonin. Novel therapeutic approaches such as anti‐inflammatory drugs, the fast‐acting antidepressant ketamine, and probiotics could directly act on the mechanisms described here improving mood disorder‐associated symptomatology. Discovery of biomarkers has been a challenging quest in psychiatry, and we end by listing promising targets worth further investigation.
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Affiliation(s)
- Ellen Doney
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, QC, Canada
| | - Alice Cadoret
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, QC, Canada
| | - Laurence Dion-Albert
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, QC, Canada
| | - Manon Lebel
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, QC, Canada
| | - Caroline Menard
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, QC, Canada
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Chauhan DN, Wilkes SR, Ratib S, Doney E, Batchelor JM, Rogers NK, Williams HC. Risk of bias does not differ between full papers and letters reporting dermatological randomized controlled trials. Br J Dermatol 2016; 175:210-1. [PMID: 26852284 DOI: 10.1111/bjd.14455] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- D N Chauhan
- School of Medicine, University of Nottingham, Nottingham, U.K
| | - S R Wilkes
- Centre of Evidence-Based Dermatology, School of Medicine, University of Nottingham, Nottingham, U.K
| | - S Ratib
- Centre of Evidence-Based Dermatology, School of Medicine, University of Nottingham, Nottingham, U.K
| | - E Doney
- Centre of Evidence-Based Dermatology, School of Medicine, University of Nottingham, Nottingham, U.K
| | - J M Batchelor
- Centre of Evidence-Based Dermatology, School of Medicine, University of Nottingham, Nottingham, U.K
| | - N K Rogers
- Centre of Evidence-Based Dermatology, School of Medicine, University of Nottingham, Nottingham, U.K
| | - H C Williams
- Centre of Evidence-Based Dermatology, School of Medicine, University of Nottingham, Nottingham, U.K
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Schmitt J, Deckert S, Alam M, Apfelbacher C, Barbaric J, Bauer A, Chalmers J, Chosidow O, Delamere F, Doney E, Eleftheriadou V, Grainge M, Johannsen L, Kottner J, Le Cleach L, Mayer A, Pinart M, Prescott L, Prinsen CAC, Ratib S, Schlager JG, Sharma M, Thomas KS, Weberschock T, Weller K, Werner RN, Wild T, Wilkes SR, Williams HC. Report from the kick-off meeting of the Cochrane Skin Group Core Outcome Set Initiative (CSG-COUSIN). Br J Dermatol 2016; 174:287-95. [PMID: 26779929 DOI: 10.1111/bjd.14337] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2015] [Indexed: 11/29/2022]
Abstract
A major obstacle of evidence-based clinical decision making is the use of nonstandardized, partly untested outcome measurement instruments. Core Outcome Sets (COSs) are currently developed in different medical fields to standardize and improve the selection of outcomes and outcome measurement instruments in clinical trials, in order to pool results of trials or to allow indirect comparison between interventions. A COS is an agreed minimum set of outcomes that should be measured and reported in all clinical trials of a specific disease or trial population. The international, multidisciplinary Cochrane Skin Group Core Outcome Set Initiative (CSG-COUSIN) aims to develop and implement COSs in dermatology, thus making trial evidence comparable and, herewith, more useful for clinical decision making. The inaugural meeting of CSG-COUSIN was held on 17-18 March 2015 in Dresden, Germany, as the exclusive theme of the Annual Cochrane Skin Group Meeting. In total, 29 individuals representing a broad mix of different stakeholder groups, professions, skills and perspectives attended. This report provides a description of existing COS initiatives in dermatology, highlights current methodological challenges in COS development, and presents the concept, aims and structure of CSG-COUSIN.
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Affiliation(s)
- J Schmitt
- Centre for Evidence-Based Healthcare, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Dresden, Germany.,Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - S Deckert
- Centre for Evidence-Based Healthcare, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - M Alam
- Department of Dermatology, Northwestern University, Chicago, IL, U.S.A
| | - C Apfelbacher
- Medical Sociology, Institute of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany
| | - J Barbaric
- Department for Development, Research and Health Technology Assessment, Agency for Quality and Accreditation in Health Care and Social Welfare, Zagreb, Croatia
| | - A Bauer
- Department of Dermatology, University Hospital Carl Gustav Carus, Dresden, Germany
| | - J Chalmers
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - O Chosidow
- Department of Dermatology, AP-HP, Hôpitaux Universitaires Henri Mondor, Créteil, France.,Université Paris-Est Créteil, Créteil, France.,Satellite Français du Cochrane Skin Group, France.,EA EpiDermE, INSERM Créteil, Créteil, France
| | - F Delamere
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - E Doney
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - V Eleftheriadou
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - M Grainge
- Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, Nottingham, U.K
| | - L Johannsen
- Centre for Evidence-Based Healthcare, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - J Kottner
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - L Le Cleach
- Department of Dermatology, AP-HP, Hôpitaux Universitaires Henri Mondor, Créteil, France.,Université Paris-Est Créteil, Créteil, France.,Satellite Français du Cochrane Skin Group, France.,EA EpiDermE, INSERM Créteil, Créteil, France
| | - A Mayer
- German Center for Health Services Research in Dermatology (CVderm), Institute for Health Services Research in Dermatology and Nursing (IVDP), University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
| | - M Pinart
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.,IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - L Prescott
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - C A C Prinsen
- VU University Medical Center, Department of Epidemiology and Biostatistics, the EMGO Institute for Health and Care Research, Amsterdam, the Netherlands
| | - S Ratib
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - J G Schlager
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Sharma
- Derby Teaching Hospitals NHS Foundation Trust, Derby, U.K
| | - K S Thomas
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - T Weberschock
- Department of Dermatology, Venereology, and Allergology, J.W. Goethe-University, Hospital, Frankfurt, Germany.,Evidence-Based Medicine Frankfurt, Institute for General Practice, Goethe-University, Frankfurt, Germany
| | - K Weller
- Department of Dermatology, Venerology and Allergy, Allergie-Centrum-Charité, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - R N Werner
- Department of Dermatology, Venerology and Allergy, Division of Evidence Based Medicine (dEBM), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - T Wild
- Centre of Wound Healing, Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
| | - S R Wilkes
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
| | - H C Williams
- Centre of Evidence Based Dermatology, University of Nottingham, Nottingham, U.K
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