1
|
Liu P, Jing L, Guo F, Xu Y, Cheng J, Liu S, Liu L, Liu Z, Zhang K, Sun N. Characteristics of gut microbiota and its correlation with hs-CRP and somatic symptoms in first-episode treatment-naive major depressive disorder. J Affect Disord 2024; 356:664-671. [PMID: 38615845 DOI: 10.1016/j.jad.2024.04.011] [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: 12/08/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVE Most patients with major depressive disorder (MDD) have somatic symptoms, but little studies pay attention in the microbial-inflammatory mechanisms of these somatic symptoms. Our study aimed to investigate alterations in gut microbiota and its correlation with inflammatory marker levels and somatic symptoms in first-episode treatment-naive MDD. METHODS Subjects contained 160 MDD patients and 101 healthy controls (HCs). MDD patients were divided into MDD with somatic symptoms group (MDDS) and MDD without somatic symptoms group (MDDN) based on Somatic Self-rating Scale (SSS). 16S ribosomal RNA sequencing were performed to analyze the composition of the fecal microbiota. The inflammatory factors were measured using enzyme linked immunosorbent assay (ELISA). Correlation among the altered gut microbiota, inflammatory factor and severity of clinical symptoms were analysized. RESULTS Relative to HCs, MDD patients had higher levels of high-sensitivity C-reactive protein (hs-CRP) as well as disordered α-diversity and β-diversity of gut microbiota. Linear discriminant effect size (LEfSe) analysis showed that MDD patients had higher proportions of Bifidobacterium, Blautia, Haemophilus and lower proportions of Bacteroides, Faecalibacterium, Roseburia, Dialister, Sutterella, Parabacteroides, Bordetella, and Phascolarctobacterium from the genus aspect. Furthermore, correlation analysis showed Bacteroides and Roseburia had negative correlations with the hs-CRP, HAMD-24, the total and factor scores of SSS in all participants. Further, compared with MDDN, the Pielous evenness was higher in MDDS. Random Forest (RF) analysis showed 20 most important genera discriminating MDD-S and MDDN, HCs. The ROC analysis showed that the AUC was 0.90 and 0.81 combining these genera respectively. CONCLUSION Our study manifested MDD patients showed disordered gut microbiota and elevated hs-CRP levels, and altered gut microbiota was closely associated with hs-CRP, depressive symptoms, and somatic symptoms.
Collapse
Affiliation(s)
- Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Lin Jing
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Fengtao Guo
- Shanxi Medical University, Taiyuan 030001, PR China
| | - Yunfan Xu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Junxiang Cheng
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Shasha Liu
- Shanxi Medical University, Taiyuan 030001, PR China
| | - Lixin Liu
- Shanxi Medical University, Taiyuan 030001, PR China; Experimental Center of Science and Research, The First Hospital of Shanxi Medical University, PR China
| | - Zhifen Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China
| | - Kerang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China.
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China.
| |
Collapse
|
2
|
Xu L, Wang S, Wu L, Cao H, Fan Y, Wang X, Yu Z, Zhou M, Gao R, Wang J. Coprococcus eutactus screened from healthy adolescent attenuates chronic restraint stress-induced depression-like changes in adolescent mice: Potential roles in the microbiome and neurotransmitter modulation. J Affect Disord 2024; 356:737-752. [PMID: 38649105 DOI: 10.1016/j.jad.2024.04.050] [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: 09/19/2023] [Revised: 02/20/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
The onset of depression commonly occurs in adolescence; therefore, depressive prevention and intervention are pivotal during this period. It is becoming evident that neurotransmitter imbalance and gut microbiota dysbiosis are prominent causes of depression. However, the underlying links and mechanisms remain poorly understood. In this study, with 16S ribosomal RNA gene sequencing, genus Coprococcus markedly differentiated between the healthy and unmedicated depressive adolescents. Based on this, transplantation of Coprococcus eutactus (C.e.) was found to dramatically ameliorate the chronic restraint stress (CRS) induced depression-like changes and prevent synaptic loss and glial-stimulated neuroinflammation in mice. The Ultra-high performance liquid chromatography tandem mass spectrometry analysis (UHPLC-MS/MS) further showed that neurotoxic neurotransmitters in kynurenine pathway (KP) such as 3-hydroxykynurenine (3-HK) and 3-hydroxyanthranilic acid (3-HAA) decreased in mouse brains, mechanistically deciphering the transfer of the tryptophan metabolic pathway to serotonin metabolic signaling in the brain after C.e. treatment, which was also verified in the colon. Molecularly, blockage of KP activities mediated by C.e. was ascribed to the restraint of the limit-step enzymes responsible for kynurenine, 3-HK, and quinolinic acid generation. In the colon, C.e. treatment significantly recovered goblet cells and mucus secretion in CRS mice which may ascribe to the rebalance of the disordered gut microbiota, especially Akkermansia, Roseburia, Rikenella, Blautia, and Alloprevotella. Taken together, the current study reveals for the first time the beneficial effects and potential mechanisms of C.e. in ameliorating CRS-induced depression, unraveling the direct links between C.e. treatment and neurotransmitter rebalance, which may provide efficacious therapeutic avenues for adolescent depressive intervention.
Collapse
Affiliation(s)
- Liuting Xu
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Hygienic Analysis and Detection, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Sizhe Wang
- Department of Hygienic Analysis and Detection, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Linlin Wu
- Department of Physical and Chemical Inspection, The Affiliated Wuxi Center for Disease Control and Prevention of Nanjing Medical University, Wuxi Center for Disease Control and Prevention, Wuxi, China
| | - Hui Cao
- Department of Hygienic Analysis and Detection, Nanjing Qixia District Center for Disease Control and Prevention, Nanjing, China
| | - Yichun Fan
- Department of Hygienic Analysis and Detection, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xi Wang
- Department of Hygienic Analysis and Detection, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zheng Yu
- Department of Hygienic Analysis and Detection, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Manfei Zhou
- Department of Hygienic Analysis and Detection, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Rong Gao
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Hygienic Analysis and Detection, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China.
| | - Jun Wang
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China.
| |
Collapse
|
3
|
Svačina MKR, Gao T, Sprenger-Svačina A, Lin J, Ganesh BP, Lee J, McCullough LD, Sheikh KA, Zhang G. Rejuvenating fecal microbiota transplant enhances peripheral nerve repair in aged mice by modulating endoneurial inflammation. Exp Neurol 2024; 376:114774. [PMID: 38599367 DOI: 10.1016/j.expneurol.2024.114774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/28/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
Peripheral nerve injury (PNI) resulting from trauma or neuropathies can cause significant disability, and its prognosis deteriorates with age. Emerging evidence suggests that gut dysbiosis and reduced fecal short-chain fatty acids (SCFAs) contribute to an age-related systemic hyperinflammation (inflammaging), which hinders nerve recovery after injury. This study thus aimed to evaluate the pro-regenerative effects of a rejuvenating fecal microbiota transplant (FMT) in a preclinical PNI model using aged mice. Aged C57BL/6 mice underwent bilateral crush injuries to their sciatic nerves. Subsequently, they either received FMT from young donors at three and four days after the injury or retained their aged gut microbiota. We analyzed gut microbiome composition and SCFA concentrations in fecal samples. The integrity of the ileac mucosal barrier was assessed by immunofluorescence staining of Claudin-1. Flow cytometry was utilized to examine immune cells and cytokine production in the ileum, spleen, and sciatic nerve. Various assessments, including behavioural tests, electrophysiological studies, and morphometrical analyses, were conducted to evaluate peripheral nerve function and repair following injury. Rejuvenating FMT reversed age-related gut dysbiosis by increasing Actinobacteria, especially Bifidobacteriales genera. This intervention also led to an elevation of gut SCFA levels and mitigated age-related ileac mucosal leakiness in aged recipients. Additionally, it augmented the number of T-helper 2 (Th2) and regulatory T (Treg) cells in the ileum and spleen, with the majority being positive for anti-inflammatory interleukin-10 (IL-10). In sciatic nerves, rejuvenating FMT resulted in increased M2 macrophage counts and a higher IL-10 production by IL-10+TNF-α- M2 macrophage subsets. Ultimately, restoring a youthful gut microbiome in aged mice led to improved nerve repair and enhanced functional recovery after PNI. Considering that FMT is already a clinically available technique, exploring novel translational strategies targeting the gut microbiome to enhance nerve repair in the elderly seems promising and warrants further evaluation.
Collapse
Affiliation(s)
- Martin K R Svačina
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA; Department of Neurology, Faculty of Medicine and University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Tong Gao
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Alina Sprenger-Svačina
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA; Department of Neurology, Faculty of Medicine and University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Jianxin Lin
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Bhanu P Ganesh
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Juneyoung Lee
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Louise D McCullough
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Kazim A Sheikh
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA
| | - Gang Zhang
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX 77030, USA.
| |
Collapse
|
4
|
Khoo SC, Zhang N, Luang-In V, Goh MS, Sonne C, Ma NL. Exploring environmental exposomes and the gut-brain nexus: Unveiling the impact of pesticide exposure. ENVIRONMENTAL RESEARCH 2024; 250:118441. [PMID: 38350544 DOI: 10.1016/j.envres.2024.118441] [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: 07/17/2023] [Revised: 01/20/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
This review delves into the escalating concern of environmental pollutants and their profound impact on human health in the context of the modern surge in global diseases. The utilisation of chemicals in food production, which results in residues in food, has emerged as a major concern nowadays. By exploring the intricate relationship between environmental pollutants and gut microbiota, the study reveals a dynamic bidirectional interplay, as modifying microbiota profile influences metabolic pathways and subsequent brain functions. This review will first provide an overview of potential exposomes and their effect to gut health. This paper is then emphasis the connection of gut brain function by analysing microbiome markers with neurotoxicity responses. We then take pesticide as example of exposome to elucidate their influence to biomarkers biosynthesis pathways and subsequent brain functions. The interconnection between neuroendocrine and neuromodulators elements and the gut-brain axis emerges as a pivotal factor in regulating mental health and brain development. Thus, manipulation of gut microbiota function at the onset of stress may offer a potential avenue for the prevention and treatment for mental disorder and other neurodegenerative illness.
Collapse
Affiliation(s)
- Shing Ching Khoo
- Biological Security and Sustainability (BioSES) Research Interest Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Nan Zhang
- Synerk Biotech, BioBay, Suzhou, 215000, China; Neuroscience Program, Department of Neurology, Houston Methodist Research Institute, TX, 77030, USA; Department of Neurology, Weill Cornell Medicine, New York, 10065, USA
| | - Vijitra Luang-In
- Natural Antioxidant Innovation Research Unit, Department of Biotechnology, Faculty of Technology, Mahasarakham University, Khamriang, Kantharawichai, Mahasarakham, 44150, Thailand
| | - Meng Shien Goh
- Biological Security and Sustainability (BioSES) Research Interest Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Christian Sonne
- Aarhus University, Faculty of Science and Technology, Department of Bioscience, Arctic Research Centre (ARC), Danish Centre for Environment and Energy (DCE), Frederiksborgvej 399, PO Box 358, DK-4000, Roskilde, Denmark
| | - Nyuk Ling Ma
- Biological Security and Sustainability (BioSES) Research Interest Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Center for Global Health Research (CGHR), Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India.
| |
Collapse
|
5
|
Enye LA, Edem EE, Onyeogaziri LI, Yusuf A, Ikpade BO, Ikuelogbon DA, Kunlere OE, Adedokun MA. Tiger nut/coconut dietary intervention as antidotal nutritional remediation strategy against neurobehavioural deficits following organophosphate-induced gut-brain axis dysregulation in mice. Toxicol Rep 2024; 12:23-40. [PMID: 38193024 PMCID: PMC10772296 DOI: 10.1016/j.toxrep.2023.12.003] [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: 09/18/2023] [Revised: 11/24/2023] [Accepted: 12/08/2023] [Indexed: 01/10/2024] Open
Abstract
Organophosphate poisoning remains a global health crisis without efficacious treatments to prevent neurotoxicity. We examined whether antidotal tiger nut and coconut dietary intervention could ameliorate neurobehavioral deficits from organophosphate dichlorvos-induced gut-brain axis dysregulation in a mouse model. Mice were divided into groups given control diet, dichlorvos-contaminated diets, or dichlorvos plus nut-enriched diets. They were exposed to a DDVP-contaminated diet for 4 weeks before exposure to the treatment diets for another 8 weeks. This was followed by behavioural assessments for cognitive, motor, anxiety-, and depressive-like behaviours. Faecal samples (pre- and post-treatment), as well as blood, brain, and gut tissues, were collected for biochemical assessments following euthanasia. Dichlorvos-exposed mice displayed impairments in cognition, motor function, and mood along with disrupted inflammatory and antioxidant responses, neurotrophic factor levels, and acetylcholinesterase activity in brain and intestinal tissues. Weight loss and altered short-chain fatty acid levels additionally indicated gut dysfunction. However, intervention with tiger nut and/or coconut- enriched diet after dichlorvos exposure attenuated these neurobehavioral, and biochemical alterations. Our findings demonstrate organophosphate-induced communication disruptions between the gut and brain pathways that manifest in neuropsychiatric disturbances. Overall, incorporating fibre-rich nuts may represent an antidotal dietary strategy to reduce neurotoxicity and prevent brain disorders associated with organophosphate poisoning.
Collapse
Affiliation(s)
- Linus Anderson Enye
- Stress & Neuroimmunology Group, Neuroscience Unit, Department of Human Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Edem Ekpenyong Edem
- Stress & Neuroimmunology Group, Neuroscience Unit, Department of Human Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Lydia Ijeoma Onyeogaziri
- Stress & Neuroimmunology Group, Neuroscience Unit, Department of Human Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Augustine Yusuf
- Stress & Neuroimmunology Group, Neuroscience Unit, Department of Human Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Bliss Oluwafunmi Ikpade
- Stress & Neuroimmunology Group, Neuroscience Unit, Department of Human Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | | | - Oladunni Eunice Kunlere
- Stress & Neuroimmunology Group, Neuroscience Unit, Department of Human Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Mujeeb Adekunle Adedokun
- Stress & Neuroimmunology Group, Neuroscience Unit, Department of Human Anatomy, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| |
Collapse
|
6
|
Ljunggren L, Butler E, Axelsson J, Åström M, Ohlsson L. Effects of probiotic supplementation on testosterone levels in healthy ageing men: A 12-week double-blind, placebo-controlled randomized clinical trial. Contemp Clin Trials Commun 2024; 39:101300. [PMID: 38770015 PMCID: PMC11103415 DOI: 10.1016/j.conctc.2024.101300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 04/16/2024] [Accepted: 04/21/2024] [Indexed: 05/22/2024] Open
Abstract
Levels of the male sex hormone testosterone are generally stable in the age interval 20-70 years, but several studies indicate an earlier, age-dependent decline. Testosterone deficiency is often underdiagnosed and under-treated, but replacement therapy has nonetheless increased during the last couple of years. Owing to possible negative side effects, alternative treatments have been investigated, including different supplementation protocols. The aim of this study was to investigate the effect of probiotic supplementation on the testosterone level in healthy men aged between 55 and 65. Hence, 12 weeks randomized, double-blinded, placebo-controlled trial was conducted to investigate the effect on testosterone levels following supplementation of the recognized probiotic Limosilactobacillus reuteri ATCC PTA 6475 on testosterone levels, using high-, low- or placebo treatment. Venous blood samples were collected at baseline, 6 and 12 weeks, for analysis of bloodwork, lipid profile, hormones, and electrolytes. Subjects were also asked to complete a questionnaire. The supplementation had no effect on testosterone levels, neither using high- or low dose, nor placebo. However, a significant decrease of triglyceride levels was observed in the high-dose group. No other parameters showed any significant change. The present study does not support the hypothesis that a probiotic supplementation can increase testosterone levels in ageing men.
Collapse
Affiliation(s)
- Lennart Ljunggren
- Malmö University, Faculty of Health and Society, Department of Biomedical Science, SE-20506, Malmö, Sweden
| | - Eile Butler
- Atlantia Clinical Trials, Heron House, Blackpool Retail Park, Cork, T23R50R, Ireland
| | | | - Mikael Åström
- StatCons, Högerudsgatan 8 B, SE-21618, Limhamn, Sweden
| | - Lars Ohlsson
- Malmö University, Faculty of Health and Society, Department of Biomedical Science, SE-20506, Malmö, Sweden
| |
Collapse
|
7
|
Gao Y, Liang Z, Mao B, Zheng X, Shan J, Jin C, Liu S, Kolliputi N, Chen Y, Xu F, Shi L. Gut microbial GABAergic signaling improves stress-associated innate immunity to respiratory viral infection. J Adv Res 2024; 60:41-56. [PMID: 37353002 PMCID: PMC10284622 DOI: 10.1016/j.jare.2023.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/14/2023] [Accepted: 06/18/2023] [Indexed: 06/25/2023] Open
Abstract
INTRODUCTION Epidemiological evidences reveal that populations with psychological stress have an increased likelihood of respiratory viral infection involving influenza A virus (IAV) and SARS-CoV-2. OBJECTIVES This study aims to explore the potential correlation between psychological stress and increased susceptibility to respiratory viral infections and how this may contribute to a more severe disease progression. METHODS A chronic restraint stress (CRS) mouse model was used to infect IAV and estimate lung inflammation. Alveolar macrophages (AMs) were observed in the numbers, function and metabolic-epigenetic properties. To confirm the central importance of the gut microbiome in stress-exacerbated viral pneumonia, mice were conducted through microbiome depletion and gut microbiome transplantation. RESULTS Stress exposure induced a decline in Lactobacillaceae abundance and hence γ-aminobutyric acid (GABA) level in mice. Microbial-derived GABA was released in the peripheral and sensed by AMs via GABAAR, leading to enhanced mitochondrial metabolism and α-ketoglutarate (αKG) generation. The metabolic intermediator in turn served as the cofactor for the epigenetic regulator Tet2 to catalyze DNA hydroxymethylation and promoted the PPARγ-centered gene program underpinning survival, self-renewing, and immunoregulation of AMs. Thus, we uncover an unappreciated GABA/Tet2/PPARγ regulatory circuitry initiated by the gut microbiome to instruct distant immune cells through a metabolic-epigenetic program. Accordingly, reconstitution with GABA-producing probiotics, adoptive transferring of GABA-conditioned AMs, or resumption of pulmonary αKG level remarkably improved AMs homeostasis and alleviated severe pneumonia in stressed mice. CONCLUSION Together, our study identifies microbiome-derived tonic signaling tuned by psychological stress to imprint resident immune cells and defensive response in the lungs. Further studies are warranted to translate these findings, basically from murine models, into the individuals with psychiatric stress during respiratory viral infection.
Collapse
Affiliation(s)
- Yanan Gao
- Department of Immunology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zihao Liang
- Department of Immunology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Bingyong Mao
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xudong Zheng
- Department of Immunology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jinjun Shan
- Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Cuiyuan Jin
- Institute of Translational Medicine, Zhejiang Shuren University, Hangzhou, Zhejiang 310015, China
| | - Shijia Liu
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Narasaiah Kolliputi
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Yugen Chen
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Feng Xu
- Department of Infectious Diseases, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China.
| | - Liyun Shi
- Institute of Translational Medicine, Zhejiang Shuren University, Hangzhou, Zhejiang 310015, China.
| |
Collapse
|
8
|
Nahidi M, Soleimanpour S, Emadzadeh M. Probiotics as a Promising Therapy in Improvement of Symptoms in Children With ADHD: A Systematic Review. J Atten Disord 2024; 28:1163-1172. [PMID: 38369739 DOI: 10.1177/10870547241228828] [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: 02/20/2024]
Abstract
BACKGROUND ADHD is widely recognized as the most prevalent neurodevelopmental disorder in children. Recently, the potential role of gut microbiota as an etiological factor in ADHD has gained attention. This systematic review aims to investigate the potential impact of probiotic supplements on alleviating ADHD symptoms and influencing behavior. METHODS PubMed, Web of Science, Cochrane Library, and SCOPUS were searched from inception to May 2023. Only randomized controlled trials that have suitable data of the effects of probiotics/synbiotics on children with ADHD were enrolled. The risk of bias of the included studies was assessed by Cochrane Collaboration risk of bias tool. RESULTS Five related randomized controlled trial were evaluated in the current review. Types of interventions ranged from single/multi strain probiotics to synbiotic. The duration of intervention in all of the studies were 2 to 3 months. The assessed outcomes were very diverse and different tools were used to report the symptoms in children. Among those which used Conners' Parent Rating Scale, a decrease in the total score occurred in the probiotic group, compared to the placebo group. An improvement in both intervention and control groups was seen in one study which used ADHD-Rating Scale. CONCLUSION In summary, the combined findings from the reviewed studies suggest that probiotic supplements might potentially serve as a complementary intervention for ADHD. However, given the small number of studies, limited sample sizes, and the diversity of probiotic strains, further research is needed to clarify the effects of probiotics in children with ADHD. The observed tolerability of probiotics is noteworthy as none of the studies report adverse effects.
Collapse
Affiliation(s)
- Mahsa Nahidi
- Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saman Soleimanpour
- Antimicrobial Resistance Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Microbiology and Virology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Emadzadeh
- Clinical Research Development Unit, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
9
|
de Melo PS, Gianlorenco AC, Marduy A, Kim CK, Choi H, Song JJ, Fregni F. A Mechanistic Analysis of the Neural Modulation of the Inflammatory System Through Vagus Nerve Stimulation: A Systematic Review and Meta-analysis. Neuromodulation 2024:S1094-7159(24)00065-5. [PMID: 38795094 DOI: 10.1016/j.neurom.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 05/27/2024]
Abstract
OBJECTIVE We aimed to conduct a systematic review and meta-analysis assessing the antiinflammatory effects of various VNS methods while exploring multiple antiinflammatory pathways. MATERIALS AND METHODS We included clinical trials that used electrical stimulation of the vagus nerve and assessed inflammatory markers up to October 2022. We excluded studies lacking control groups, those with combined interventions, or abstracts without full text. We adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and the Cochrane Handbook for Systematic Reviews. For each inflammatory marker, a random-effects meta-analysis using the inverse variance method was performed. Methods used include transcutaneous auricular VNS (taVNS), transcutaneous cervical VNS (tcVNS), invasive cervical VNS (iVNS), and electroacupuncture VNS (eaVNS). Main reported outcomes included tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-1ß, C-reactive protein (CRP), and IL-10. Risk of bias was evaluated using the Cochrane Collaboration Tool (RoB 2.0). RESULTS This review included 15 studies, involving 597 patients. No statistically significant general VNS effect was observed on TNF-α, IL-6, and IL-1ß. However, CRP, IL-10, and interferon (IFN)-γ were significantly modulated by VNS across all methods. Subgroup analysis revealed specific stimulation techniques producing significant results, such as taVNS effects in IL-1ß and IL-10, and iVNS in IL-6, whereas tcVNS and eaVNS did not convey significant pooled results individually. Cumulative exposure to VNS, higher risk of bias, study design, and pulse width were identified as effect size predictors in our meta-regression models. CONCLUSIONS Pooling all VNS techniques indicated the ability of VNS to modulate inflammatory markers such as CRP, IL-10, and IFN-γ. Individually, methods such as taVNS were effective in modulating IL-1ß and IL-10, whereas iVNS modulated IL-6. However, different VNS techniques should be separately analyzed in larger, homogeneous, and powerful studies to achieve a clearer and more consistent understanding of the effect of each VNS method on the inflammatory system.
Collapse
Affiliation(s)
- Paulo S de Melo
- Medicine, Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil; Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Anna C Gianlorenco
- Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Department of Physical Therapy, Federal University of São Carlos, Brazil
| | - Anna Marduy
- Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Medicine, União Metropolitana de Ensino e Cultura (UNIME), Salvador, Bahia, Brazil
| | - Chi K Kim
- Department of Neurology, Korea University Guro Hospital, Seoul, South Korea
| | - Hyuk Choi
- Department of Medical Sciences, Graduate School of Medicine, Korea University, Seoul, South Korea; Neurive Co, Ltd, Gimhae, South Korea
| | - Jae-Jun Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University Medical Center, Seoul, South Korea; Neurive Co, Ltd, Gimhae, South Korea
| | - Felipe Fregni
- Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
10
|
Sulaimany S, Farahmandi K, Mafakheri A. Computational prediction of new therapeutic effects of probiotics. Sci Rep 2024; 14:11932. [PMID: 38789535 PMCID: PMC11126595 DOI: 10.1038/s41598-024-62796-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 05/21/2024] [Indexed: 05/26/2024] Open
Abstract
Probiotics are living microorganisms that provide health benefits to their hosts, potentially aiding in the treatment or prevention of various diseases, including diarrhea, irritable bowel syndrome, ulcerative colitis, and Crohn's disease. Motivated by successful applications of link prediction in medical and biological networks, we applied link prediction to the probiotic-disease network to identify unreported relations. Using data from the Probio database and International Classification of Diseases-10th Revision (ICD-10) resources, we constructed a bipartite graph focused on the relationship between probiotics and diseases. We applied customized link prediction algorithms for this bipartite network, including common neighbors, Jaccard coefficient, and Adamic/Adar ranking formulas. We evaluated the results using Area under the Curve (AUC) and precision metrics. Our analysis revealed that common neighbors outperformed the other methods, with an AUC of 0.96 and precision of 0.6, indicating that basic formulas can predict at least six out of ten probable relations correctly. To support our findings, we conducted an exact search of the top 20 predictions and found six confirming papers on Google Scholar and Science Direct. Evidence suggests that Lactobacillus jensenii may provide prophylactic and therapeutic benefits for gastrointestinal diseases and that Lactobacillus acidophilus may have potential activity against urologic and female genital illnesses. Further investigation of other predictions through additional preclinical and clinical studies is recommended. Future research may focus on deploying more powerful link prediction algorithms to achieve better and more accurate results.
Collapse
Affiliation(s)
- Sadegh Sulaimany
- Social and Biological Network Analysis Laboratory (SBNA), Department of Computer Engineering, University of Kurdistan, Sanandaj, Iran.
| | - Kajal Farahmandi
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Aso Mafakheri
- Social and Biological Network Analysis Laboratory (SBNA), Department of Computer Engineering, University of Kurdistan, Sanandaj, Iran
| |
Collapse
|
11
|
Hasaniani N, Mostafa Rahimi S, Akbari M, Sadati F, Pournajaf A, Rostami-Mansoor S. The Role of Intestinal Microbiota and Probiotics Supplementation in Multiple Sclerosis Management. Neuroscience 2024:S0306-4522(24)00207-0. [PMID: 38777135 DOI: 10.1016/j.neuroscience.2024.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/26/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
Multiple sclerosis (MS) is a neurological autoimmune disorder predominantly afflicting young adults. The etiology of MS is intricate, involving a variety of environmental and genetic factors. Current research increasingly focuses on the substantial contribution of gut microbiota in MS pathogenesis. The commensal microbiota resident within the intestinal milieu assumes a central role within the intricate network recognized as the gut-brain axis (GBA), wielding beneficial impact in neurological and psychological facets. As a result, the modulation of gut microbiota is considered a pivotal aspect in the management of neural disorders, including MS. Recent investigations have unveiled the possibility of using probiotic supplements as a promising strategy for exerting a positive impact on the course of MS. This therapeutic approach operates through several mechanisms, including the reinforcement of gut epithelial integrity, augmentation of the host's resistance against pathogenic microorganisms, and facilitation of mucosal immunomodulatory processes. The present study comprehensively explains the gut microbiome's profound influence on the central nervous system (CNS). It underscores the pivotal role played by probiotics in forming the immune system and modulating neurotransmitter function. Furthermore, the investigation elucidates various instances of probiotic utilization in MS patients, shedding light on the potential therapeutic advantages afforded by this intervention.
Collapse
Affiliation(s)
- Nima Hasaniani
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran; Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Seyed Mostafa Rahimi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Marziyeh Akbari
- Department of Genetics, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Fahimeh Sadati
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Abazar Pournajaf
- Biomedical and Microbial Advanced Technologies (BMAT) Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Sahar Rostami-Mansoor
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
| |
Collapse
|
12
|
McCurry MD, D'Agostino GD, Walsh JT, Bisanz JE, Zalosnik I, Dong X, Morris DJ, Korzenik JR, Edlow AG, Balskus EP, Turnbaugh PJ, Huh JR, Devlin AS. Gut bacteria convert glucocorticoids into progestins in the presence of hydrogen gas. Cell 2024:S0092-8674(24)00514-2. [PMID: 38795705 DOI: 10.1016/j.cell.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 02/03/2024] [Accepted: 05/02/2024] [Indexed: 05/28/2024]
Abstract
Recent studies suggest that human-associated bacteria interact with host-produced steroids, but the mechanisms and physiological impact of such interactions remain unclear. Here, we show that the human gut bacteria Gordonibacter pamelaeae and Eggerthella lenta convert abundant biliary corticoids into progestins through 21-dehydroxylation, thereby transforming a class of immuno- and metabo-regulatory steroids into a class of sex hormones and neurosteroids. Using comparative genomics, homologous expression, and heterologous expression, we identify a bacterial gene cluster that performs 21-dehydroxylation. We also uncover an unexpected role for hydrogen gas production by gut commensals in promoting 21-dehydroxylation, suggesting that hydrogen modulates secondary metabolism in the gut. Levels of certain bacterial progestins, including allopregnanolone, better known as brexanolone, an FDA-approved drug for postpartum depression, are substantially increased in feces from pregnant humans. Thus, bacterial conversion of corticoids into progestins may affect host physiology, particularly in the context of pregnancy and women's health.
Collapse
Affiliation(s)
- Megan D McCurry
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Gabriel D D'Agostino
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Jasmine T Walsh
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Jordan E Bisanz
- Department of Biochemistry & Molecular Biology, Pennsylvania State University, State College, PA 16802, USA
| | - Ines Zalosnik
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Xueyang Dong
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - David J Morris
- Emeritus Professor of Pathology and Laboratory Medicine, Brown University Alpert School of Medicine, Providence, RI 02903, USA
| | - Joshua R Korzenik
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham & Women's Hospital, Boston, MA 02115, USA
| | - Andrea G Edlow
- Department of Obstetrics & Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Emily P Balskus
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA 02138, USA; Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02138, USA
| | - Peter J Turnbaugh
- Department of Microbiology & Immunology, University of California, San Francisco, San Francisco, CA 94143, USA; Chan Zuckerberg Biohub-San Francisco, San Francisco, CA 94158, USA
| | - Jun R Huh
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - A Sloan Devlin
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
| |
Collapse
|
13
|
Aljeradat B, Kumar D, Abdulmuizz S, Kundu M, Almealawy YF, Batarseh DR, Atallah O, Ennabe M, Alsarafandi M, Alan A, Weinand M. Neuromodulation and the Gut-Brain Axis: Therapeutic Mechanisms and Implications for Gastrointestinal and Neurological Disorders. PATHOPHYSIOLOGY 2024; 31:244-268. [PMID: 38804299 DOI: 10.3390/pathophysiology31020019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024] Open
Abstract
The gut-brain axis (GBA) represents a complex, bidirectional communication network that intricately connects the gastrointestinal tract with the central nervous system (CNS). Understanding and intervening in this axis opens a pathway for therapeutic advancements for neurological and gastrointestinal diseases where the GBA has been proposed to play a role in the pathophysiology. In light of this, the current review assesses the effectiveness of neuromodulation techniques in treating neurological and gastrointestinal disorders by modulating the GBA, involving key elements such as gut microbiota, neurotrophic factors, and proinflammatory cytokines. Through a comprehensive literature review encompassing PubMed, Google Scholar, Web of Science, and the Cochrane Library, this research highlights the role played by the GBA in neurological and gastrointestinal diseases, in addition to the impact of neuromodulation on the management of these conditions which include both gastrointestinal (irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and gastroesophageal reflux disease (GERD)) and neurological disorders (Parkinson's disease (PD), Alzheimer's disease (AD), autism spectrum disorder (ASD), and neuropsychiatric disorders). Despite existing challenges, the ability of neuromodulation to adjust disrupted neural pathways, alleviate pain, and mitigate inflammation is significant in improving the quality of life for patients, thereby offering exciting prospects for future advancements in patient care.
Collapse
Affiliation(s)
- Baha' Aljeradat
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- School of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Danisha Kumar
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- Dow Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan
| | - Sulaiman Abdulmuizz
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- College of Health Sciences, University of Ilorin, Ilorin 240003, Kwara, Nigeria
| | - Mrinmoy Kundu
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- Institute of Medical Sciences and SUM Hospital, Bhubaneswar 751029, India
| | - Yasser F Almealawy
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- Faculty of Medicine, University of Kufa, Kufa P.O. Box 21, Iraq
| | - Dima Ratib Batarseh
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- School of Medicine, The University of Jordan, Amman 11942, Jordan
| | - Oday Atallah
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- Department of Neurosurgery, Hannover Medical School, 30625 Hannover, Germany
| | - Michelle Ennabe
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- College of Medicine, The University of Arizona College of Medicine, Phoenix, AZ 85004, USA
| | - Muath Alsarafandi
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- College of Medicine, Islamic University of Gaza, Rafa Refugee Camp, Rafa P.O. Box 108, Palestine
- Faculty of Medicine, Islamic University of Gaza, Gaza P.O. Box 108, Palestine
| | - Albert Alan
- Global Neurosurgical Alliance, Tucson, AZ 85716, USA
- Department of Neurosurgery, University of Arizona, Tucson, AZ 85724, USA
- College of Medicine, The University of Arizona College of Medicine, Tucson, AZ 85004, USA
| | - Martin Weinand
- Department of Neurosurgery, University of Arizona, Tucson, AZ 85724, USA
- College of Medicine, The University of Arizona College of Medicine, Tucson, AZ 85004, USA
| |
Collapse
|
14
|
Palacios N, Gordon S, Wang T, Burk R, Qi Q, Huttenhower C, Gonzalez HM, Knight R, De Carli C, Daviglus M, Lamar M, Telavera G, Tarraf W, Kosciolek T, Cai J, Kaplan RC. Gut Microbiome Multi-Omics and Cognitive Function in the Hispanic Community Health Study/Study of Latinos- Investigation of Neurocognitive Aging. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.17.24307533. [PMID: 38798527 PMCID: PMC11118626 DOI: 10.1101/2024.05.17.24307533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
INTRODUCTION We conducted a study within the Hispanic Community Health Study/Study of Latinos- Investigation of Neurocognitive Aging (HCHS/SOL-INCA) cohort to examine the association between gut microbiome and cognitive function. METHODS We analyzed the fecal metagenomes of 2,471 HCHS/SOL-INCA participants to, cross-sectionally, identify microbial taxonomic and functional features associated with global cognitive function. Omnibus (PERMANOVA) and feature-wise analyses (MaAsLin2) were conducted to identify microbiome-cognition associations, and specific microbial species and pathways (Kyoto Encyclopedia of Genes and Genomes (KEGG modules) associated with cognition. RESULTS Eubacterium species( E. siraeum and E. eligens ), were associated with better cognition. Several KEGG modules, most strongly Ornithine, Serine biosynthesis and Urea Cycle, were associated with worse cognition. DISCUSSION In a large Hispanic/Latino cohort, we identified several microbial taxa and KEGG pathways associated with cognition.
Collapse
|
15
|
Qin Y, Huang W, Wang Z, Wang C, Wang C, Zhang M, Wu S, Wang G, Zhao F. 1,2-Dichloroethane causes anxiety and cognitive dysfunction in mice by disturbing GABA metabolism and inhibiting the cAMP-PKA-CREB signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116464. [PMID: 38759534 DOI: 10.1016/j.ecoenv.2024.116464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 04/09/2024] [Accepted: 05/12/2024] [Indexed: 05/19/2024]
Abstract
1,2-Dichloroethane (1,2-DCE) is a powerfully toxic neurotoxin, which is a common environmental pollutant. Studies have indicated that 1,2-DCE long-term exposure can result in adverse effects. Nevertheless, the precise mechanism remains unknown. In this study, behavioral results revealed that 1,2-DCE long-term exposure could cause anxiety and learning and memory ability impairment in mice. The contents of γ-aminobutyric acid (GABA) and glutamine (Gln) in mice's prefrontal cortex decreased, whereas that of glutamate (Glu) increased. With the increase in dose, the activities of glutamate decarboxylase (GAD) decreased and those of GABA transaminase (GABA-T) increased. The protein and mRNA expressions of GABA transporter-3 (GAT-3), vesicular GABA transporter (VGAT), GABA A receptor α2 (GABAARα2), GABAARγ2, K-Cl cotransporter isoform 2 (KCC2), GABA B receptor 1 (GABABR1), GABABR2, protein kinase A (PKA), cAMP-response element binding protein (CREB), p-CREB, brain-derived neurotrophic factor (BDNF), c-fos, c-Jun and the protein of glutamate dehydrogenase (GDH) and PKA-C were decreased, while the expression levels of GABA transporter-1 (GAT-1) and Na-K-2Cl cotransporter isoform 1 (NKCC1) were increased. However, there was no significant change in the protein content of succinic semialdehyde dehydrogenase (SSADH). The expressions of adenylate cyclase (AC) and cyclic adenosine monophosphate (cAMP) contents were also reduced. In conclusion, the results of this study show that exposure to 1,2-DCE could lead to anxiety and cognitive impairment in mice, which may be related to the disturbance of GABA metabolism and its receptors along with the cAMP-PKA-CREB pathway.
Collapse
Affiliation(s)
- Yuchen Qin
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Weiyu Huang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Zijiang Wang
- Liaoning Provincial Center for Disease Control and Prevention, Shenyang, Liaoning, People's Republic of China
| | - Chunting Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Chen Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Meng Zhang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Shengting Wu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Gaoyang Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Fenghong Zhao
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China.
| |
Collapse
|
16
|
Frileux S, Boltri M, Doré J, Leboyer M, Roux P. Cognition and gut microbiota in schizophrenia spectrum and mood disorders: A systematic review. Neurosci Biobehav Rev 2024; 162:105722. [PMID: 38754717 DOI: 10.1016/j.neubiorev.2024.105722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/11/2024] [Accepted: 05/10/2024] [Indexed: 05/18/2024]
Abstract
FRILEUX, M., BOLTRI M. and al. Cognition and Gut microbiota in schizophrenia spectrum and mood disorders: a Systematic Review. NEUROSCI BIOBEHAV REV (1) 2024 Schizophrenia spectrum disorders and major mood disorders are associated with cognitive impairments. Recent studies suggest a link between gut microbiota composition and cognitive functioning. Here, we review the relationship between gut microbiota and cognition in these disorders. To do this, we conducted a systematic review, searching Cochrane Central Register of Controlled Trials, EBSCOhost, Embase, Pubmed, Scopus, and Web of Science. Studies were included if they investigated the relationship between gut microbiota composition and cognitive function through neuropsychological assessments in patients with bipolar, depressive, schizophrenia spectrum, and other psychotic disorders. Ten studies were identified. Findings underscore a link between gut dysbiosis and cognitive impairment. This relationship identified specific taxa (Haemophilus, Bacteroides, and Alistipes) as potential contributors to bolstered cognitive performance. Conversely, Candida albicans, Toxoplasma gondii, Streptococcus and Deinococcus were associated with diminished performance on cognitive assessments. Prebiotics and probiotics interventions were associated with cognitive enhancements, particularly executive functions. These results emphasize the role of gut microbiota in cognition, prompting further exploration of the underlying mechanisms paving the way toward precision psychiatry.
Collapse
Affiliation(s)
- S Frileux
- Service Hospitalo-Universitaire de Psychiatrie d'Adultes et d'Addictologie, Centre Hospitalier de Versailles, 177, rue de Versailles, Le Chesnay-Rocquencourt 78157, France; Université Paris-Saclay, Université Versailles Saint-Quentin-En-Yvelines, DisAP-DevPsy-CESP, INSERM UMR1018, Villejuif 94807, France.
| | - M Boltri
- Department of Psychology, Catholic University of Sacred Heart, Milan, Italy; I.R.C.C.S. Istituto Auxologico Italiano, Experimental Laboratory for Metabolic Neurosciences Research, Piancavallo, Italy
| | - J Doré
- Université Paris-Saclay, INRA, MetaGenoPolis, AgroParisTech, MICALIS, Jouy-en-Josas 78350, France
| | - M Leboyer
- Inserm U955 IMRB, Translational Neuropsychiatry Laboratory, AP-HP, DMU IMPACT, Fédération Hospitalo-Universitaire de médecine de précision en psychiatrie (FHU ADAPT), Paris Est Créteil University and Fondation FondaMental, Créteil 94010, France; Fondation Fondamental, Créteil 94010, France
| | - P Roux
- Service Hospitalo-Universitaire de Psychiatrie d'Adultes et d'Addictologie, Centre Hospitalier de Versailles, 177, rue de Versailles, Le Chesnay-Rocquencourt 78157, France; Université Paris-Saclay, Université Versailles Saint-Quentin-En-Yvelines, DisAP-DevPsy-CESP, INSERM UMR1018, Villejuif 94807, France
| |
Collapse
|
17
|
Louka E, Koumandou VL. The Emerging Role of Human Gut Bacteria Extracellular Vesicles in Mental Disorders and Developing New Pharmaceuticals. Curr Issues Mol Biol 2024; 46:4751-4767. [PMID: 38785554 PMCID: PMC11120620 DOI: 10.3390/cimb46050286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024] Open
Abstract
In recent years, further evidence has emerged regarding the involvement of extracellular vesicles in various human physiopathological conditions such as Alzheimer's disease, Parkinson's disease, irritable bowel syndrome, and mental disorders. The biogenesis and cargo of such vesicles may reveal their impact on human health nd disease and set the underpinnings for the development of novel chemical compounds and pharmaceuticals. In this review, we examine the link between bacteria-derived exosomes in the gastrointestinal tract and mental disorders, such as depression and anxiety disorders. Crucially, we focus on whether changes in the gut environment affect the human mental state or the other way around. Furthermore, the possibility of handling bacteria-derived exosomes as vectors of chemicals to treat such conditions is examined.
Collapse
Affiliation(s)
- Effrosyni Louka
- Genetics Laboratory, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Vassiliki Lila Koumandou
- Genetics Laboratory, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| |
Collapse
|
18
|
Zaparte A, Dore E, White S, Paliarin F, Gabriel C, Copenhaver K, Basavanhalli S, Garcia E, Vaddavalli R, Luo M, Taylor CM, Welsh DA, Maiya R. Standard rodent diets differentially impact alcohol consumption, preference, and gut microbiome diversity. Front Neurosci 2024; 18:1383181. [PMID: 38803684 PMCID: PMC11129685 DOI: 10.3389/fnins.2024.1383181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/12/2024] [Indexed: 05/29/2024] Open
Abstract
Alcohol use disorder (AUD) is a complex and widespread disease with limited pharmacotherapies. Preclinical animal models of AUD use a variety of voluntary alcohol consumption procedures to recapitulate different phases of AUD, including binge alcohol consumption and dependence. However, voluntary alcohol consumption in mice is widely variable, making it difficult to reproduce results across labs. Accumulating evidence indicates that different brands of commercially available rodent chow can profoundly influence alcohol intake. In this study, we investigated the effects of three commercially available and widely used rodent diet formulations on alcohol consumption and preference in C57BL/6 J mice using the 24 h intermittent access procedure. The three brands of chow tested were LabDiet 5,001 (LD5001), LabDiet 5,053 (LD5053), and Teklad 2019S (TL2019S) from two companies (Research Diets and Envigo, respectively). Mice fed LD5001 and LD5053 displayed higher levels of alcohol consumption and preference compared to mice fed TL2019S. We also found that alcohol consumption and preference could be rapidly switched by changing the diet 48 h prior to alcohol administration. Sucrose, saccharin, and quinine preferences were not altered, suggesting that the diets did not alter sweet and bitter taste perception. We also found that mice fed LD5001 displayed increased quinine-resistant alcohol intake compared to mice fed TL2019S, suggesting that diets could influence the development of compulsive behaviors such as alcohol consumption. We profiled the gut microbiome of water- and alcohol-drinking mice that were maintained on different diets and found significant differences in bacterial alpha- and beta-diversities, which could impact the gut-brain axis signaling and alcohol consumption.
Collapse
Affiliation(s)
- Aline Zaparte
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Evan Dore
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Selby White
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Franciely Paliarin
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Cameron Gabriel
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Katherine Copenhaver
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Samhita Basavanhalli
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Emily Garcia
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Rishith Vaddavalli
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Meng Luo
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Christopher M. Taylor
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - David Allen Welsh
- Department of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| | - Rajani Maiya
- Department of Physiology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, United States
| |
Collapse
|
19
|
Simpson JB, Walker ME, Sekela JJ, Ivey SM, Jariwala PB, Storch CM, Kowalewski ME, Graboski AL, Lietzan AD, Walton WG, Davis KA, Cloer EW, Borlandelli V, Hsiao YC, Roberts LR, Perlman DH, Liang X, Overkleeft HS, Bhatt AP, Lu K, Redinbo MR. Gut microbial β-glucuronidases influence endobiotic homeostasis and are modulated by diverse therapeutics. Cell Host Microbe 2024:S1931-3128(24)00138-0. [PMID: 38754417 DOI: 10.1016/j.chom.2024.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/18/2024] [Accepted: 04/24/2024] [Indexed: 05/18/2024]
Abstract
Hormones and neurotransmitters are essential to homeostasis, and their disruptions are connected to diseases ranging from cancer to anxiety. The differential reactivation of endobiotic glucuronides by gut microbial β-glucuronidase (GUS) enzymes may influence interindividual differences in the onset and treatment of disease. Using multi-omic, in vitro, and in vivo approaches, we show that germ-free mice have reduced levels of active endobiotics and that distinct gut microbial Loop 1 and FMN GUS enzymes drive hormone and neurotransmitter reactivation. We demonstrate that a range of FDA-approved drugs prevent this reactivation by intercepting the catalytic cycle of the enzymes in a conserved fashion. Finally, we find that inhibiting GUS in conventional mice reduces free serotonin and increases its inactive glucuronide in the serum and intestines. Our results illuminate the indispensability of gut microbial enzymes in sustaining endobiotic homeostasis and indicate that therapeutic disruptions of this metabolism promote interindividual response variabilities.
Collapse
Affiliation(s)
- Joshua B Simpson
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - Morgan E Walker
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - Joshua J Sekela
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - Samantha M Ivey
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - Parth B Jariwala
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - Cameron M Storch
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - Mark E Kowalewski
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, USA
| | - Amanda L Graboski
- Department of Pharmacology, University of North Carolina, Chapel Hill, NC, USA
| | - Adam D Lietzan
- Division of Oral and Craniofacial Health Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - William G Walton
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - Kacey A Davis
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, USA
| | - Erica W Cloer
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Valentina Borlandelli
- Department of Bioorganic Synthesis, Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Yun-Chung Hsiao
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Lee R Roberts
- Exploratory Science Center, Merck & Co., Inc., Cambridge, MA 02141, USA
| | - David H Perlman
- Exploratory Science Center, Merck & Co., Inc., Cambridge, MA 02141, USA
| | - Xue Liang
- Exploratory Science Center, Merck & Co., Inc., Cambridge, MA 02141, USA
| | - Hermen S Overkleeft
- Department of Bioorganic Synthesis, Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Aadra P Bhatt
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Division of Gastroenterology and Hepatology, Department of Medicine, Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kun Lu
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Matthew R Redinbo
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA; Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, USA.
| |
Collapse
|
20
|
Mokhtari T, Irandoost E, Sheikhbahaei F. Stress, pain, anxiety, and depression in endometriosis-Targeting glial activation and inflammation. Int Immunopharmacol 2024; 132:111942. [PMID: 38565045 DOI: 10.1016/j.intimp.2024.111942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
Endometriosis (EM) is a gynecological inflammatory disease often accompanied by stress, chronic pelvic pain (CPP), anxiety, and depression, leading to a diminished quality of life. This review aims to discuss the relationship between systemic and local inflammatory responses in the central nervous system (CNS), focusing on glial dysfunctions (astrocytes and microglia) as in critical brain regions involved in emotion, cognition, pain processing, anxiety, and depression. The review presents that EM is connected to increased levels of pro-inflammatory cytokines in the circulation. Additionally, chronic stress and CPP as stressors may contribute to the dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, depleting the production of inflammatory mediators in the circulatory system and the brain. The systemic cytokines cause blood-brain barrier (BBB) breakdown, activate microglia in the brain, and lead to neuroinflammation. Furthermore, CPP may induce neuronal morphological alterations in critical regions through central sensitization and the activation of glial cells. The activation of glial cells, particularly the polarization of microglia, leads to the activation of the NLRP3 inflammasome and the overproduction of inflammatory cytokines. These inflammatory cytokines interact with the signaling pathways involved in neural plasticity. Additionally, persistent inflammatory conditions in the brain lead to neuronal death, which is correlated with a reduced volume of key brain regions such as the hippocampus. This review highlights the involvement of glial cells in the pathogenesis of the mental comorbidities of EM (i.e., pain, anxiety, and depression) and to discuss potential therapeutic approaches for targeting the inflammation and activation of microglia in key brain regions.
Collapse
Affiliation(s)
- Tahmineh Mokhtari
- Department of Pharmacology, Hubei University of Medicine, Shiyan, China; Department of Histology and Embryology, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Elnaz Irandoost
- Sarem Women's Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran.
| | - Fatemeh Sheikhbahaei
- Department of Anatomy, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
| |
Collapse
|
21
|
Xiao J. Role of the Gut Microbiota-Brain Axis in Brain Damage in Preterm Infants. ACS Pharmacol Transl Sci 2024; 7:1197-1204. [PMID: 38751622 PMCID: PMC11091980 DOI: 10.1021/acsptsci.3c00369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/29/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024]
Abstract
The greatest repository of microbes in the human body, the intestinal microbiome, is involved in neurological development, aging, and brain illnesses such as white matter injury (WMI) in preterm newborns. Intestinal microorganisms constitute a microbial gut-brain axis that serves as a crucial conduit for communication between the gut and the nervous system. This axis controls inflammatory cytokines, which in turn influence the differentiation of premyelinating oligodendrocytes (pre-OLs) and influence the incidence of WMI in premature newborns through the metabolites generated by gut microbes. Here, we describe the effects of white matter injury (WMI) on intestinal dysbiosis and gut dysfunction and explain the most recent research findings on the gut-brain axis in both humans and animals. We also emphasize the delicate relationship that exists between the microbiota and the brain following acute brain injury. The role that the intestinal microflora plays in influencing host metabolism, the immune system, brain health, and the course of disease is becoming increasingly clear, but there are still gaps in the field of WMI treatment. Thus, this review demonstrates the function of the gut microflora-brain axis in WMI and elucidates the possible mechanisms underlying the communication between gut bacteria and the developing brain via the gut-brain axis, potentially opening up new avenues for microbial-based intervention and treatment for preterm WMI.
Collapse
Affiliation(s)
- Jie Xiao
- Department
of Pathology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, 435000 Huangshi, P. R. China
| |
Collapse
|
22
|
Zhu F, Hu S, Mei L. Production and quality evaluation of a novel γ-aminobutyric acid-enriched yogurt. Front Nutr 2024; 11:1404743. [PMID: 38784135 PMCID: PMC11112111 DOI: 10.3389/fnut.2024.1404743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
Objective γ-aminobutyric acid (GABA) is a neurotransmitter inhibitor that has beneficial effects on various health conditions such as hypertension, cognitive dysfunction, and anxiety. In this study, we investigated a novel yogurt naturally enriched with GABA using a Levilactobacillus brevis strain isolated in our laboratory; the specific optimum yogurt production conditions for this strain were determined. Methods We isolated an L. brevis strain and used it to produce yogurt naturally enriched with GABA. We explored the optimal conditions to enhance GABA yield, including fermentation temperature, inoculation amount, L-monosodium glutamate (L-MSG) concentration, fermentation time, and sucrose content. We also performed mixed fermentation with Streptococcus thermophilus and evaluated the quality of the yogurt. Results Following optimization (43°C, 8% inoculation amount, 1.5 g/L L-MSG, and 8% sucrose for 40 h of fermentation), the GABA yield of the yogurt increased by 2.2 times, reaching 75.3 mg/100 g. Mixed fermentation with S. thermophilus demonstrated favorable results, achieving a GABA yield akin to that found in some commercially available functional foods. Moreover, the viable microbe count in the GABA-enriched yogurt exceeded 1 × 108 cfu/mL, which is higher than that of commercial standards. The yogurt also exhibited a suitable water-holding capacity, viscosity, 3-week storage time, and favorable sensory test results. Conclusion This study highlights the potential of naturally enriched GABA yogurt as a competitive commercial yogurt with beneficial health effects.
Collapse
Affiliation(s)
- Fei Zhu
- Department of Food Science, Zhejiang Pharmaceutical University, Ningbo, China
| | - Sheng Hu
- Country School of Biological and Chemical Engineering, NingboTech University, Ningbo, China
| | - Lehe Mei
- Jinhua Advanced Research Institute, Jinhua, China
- College of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, China
| |
Collapse
|
23
|
Zeng MH, Li S, Lv QB, Wang XX, Qadeer A, Mahmoud MH. Modulation of the rat intestinal microbiota in the course of Anisakis pegreffii infection. Front Vet Sci 2024; 11:1403920. [PMID: 38784661 PMCID: PMC11111928 DOI: 10.3389/fvets.2024.1403920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
Background Anisakis are globally distributed, marine parasitic nematodes that can cause human health problems, including symptoms such as vomiting, acute diarrhea, and allergic reactions. As parasitic nematodes that primarily affect the patient's digestive tract, intestinal helminths can interact directly with the host microbiota through physical contact, chemicals, or nutrient competition. It is widely accepted that the host microbiota plays a crucial role in the regulation of immunity. Materials and methods Nematodes collected from the abdominal cavity of marine fish were identified by molecular biology and live worms were artificially infected in rats. Infection was determined by indirect ELISA based on rat serum and worm extraction. Feces were collected for 16S rDNA-based analysis of microbiota diversity. Results Molecular biology identification based on ITS sequences identified the collected nematodes as A. pegreffii. The success of the artificial infection was determined by indirect ELISA based on serum and worm extraction from artificially infected rats. Microbiota diversity analysis showed that a total of 773 ASVs were generated, and PCoA showed that the infected group was differentiated from the control group. The control group contained five characterized genera (Prevotellaceae NK3B31 group, Turicibacter, Clostridium sensu stricto 1, Candidatus Stoquefichus, Lachnospira) and the infected group contained nine characterized genera (Rodentibacter, Christensenella, Dubosiella, Streptococcus, Anaeroplasma, Lactococcus, Papillibacter, Desulfovibrio, Roseburia). Based on the Wilcoxon test, four processes were found to be significant: bacterial secretion system, bacterial invasion of epithelial cells, bacterial chemotaxis, and ABC transporters. Conclusion This study is the first to analyze the diversity of the intestinal microbiota of rats infected with A. pegreffii and to determine the damage and regulation of metabolism and immunity caused by the infection in the rat gut. The findings provide a basis for further research on host-helminth-microbe correlationships.
Collapse
Affiliation(s)
- Min-hao Zeng
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Shan Li
- Jiangxi Provincial Key Laboratory of Cell Precision Therapy, School of Basic Medical Sciences, Jiujiang University, Jiujiang, China
| | - Qing-bo Lv
- Key Laboratory of Zoonosis Research, Institute of Zoonosis, College of Veterinary Medicine, Ministry of Education, Jilin University, Changchun, China
| | - Xiao-xu Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, China
| | - Abdul Qadeer
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Mohamed H. Mahmoud
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
24
|
Little RB, Carter SJ, Motl RW, Hunter G, Cook A, Liu N, Krontiras H, Lefkowitz EJ, Turan B, Schleicher E, Rogers LQ. Role of Gut Microbe Composition in Psychosocial Symptom Response to Exercise Training in Breast Cancer Survivors (ROME) study: protocol for a randomised controlled trial. BMJ Open 2024; 14:e081660. [PMID: 38702085 PMCID: PMC11086582 DOI: 10.1136/bmjopen-2023-081660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 04/12/2024] [Indexed: 05/06/2024] Open
Abstract
INTRODUCTION Breast cancer survivors have an increased risk for chronic fatigue and altered gut microbiota composition, both with negative health and quality of life affects. Exercise modestly improves fatigue and is linked to gut microbial diversity and production of beneficial metabolites. Studies suggest that gut microbiota composition is a potential mechanism underlying fatigue response to exercise. Randomised controlled trials testing the effects of exercise on the gut microbiome are limited and there is a scarcity of findings specific to breast cancer survivors. The objective of this study is to determine if fitness-related modifications to gut microbiota occur and, if so, mediate the effects of aerobic exercise on fatigue response. METHODS AND ANALYSIS The research is a randomised controlled trial among breast cancer survivors aged 18-74 with fatigue. The primary aim is to determine the effects of aerobic exercise training compared with an attention control on gut microbiota composition. The secondary study aims are to test if exercise training (1) affects the gut microbiota composition directly and/or indirectly through inflammation (serum cytokines), autonomic nervous system (heart rate variability) or hypothalamic-pituitary-adrenal axis mediators (hair cortisol assays), and (2) effects on fatigue are direct and/or indirect through changes in the gut microbiota composition. All participants receive a standardised controlled diet. Assessments occur at baseline, 5 weeks, 10 weeks and 15 weeks (5 weeks post intervention completion). Faecal samples collect the gut microbiome and 16S gene sequencing will identify the microbiome. Fatigue is measured by a 13-item multidimensional fatigue scale. ETHICS AND DISSEMINATION The University of Alabama at Birmingham Institutional Review Board (IRB) approved this study on 15 May 2019, UAB IRB#30000320. A Data and Safety Monitoring Board convenes annually or more often if indicated. Findings will be disseminated in peer-reviewed journals and conference presentations. TRIAL REGISTRATION NUMBER ClinicalTrials.gov, NCT04088708.
Collapse
Affiliation(s)
- Rebecca B Little
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Stephen J Carter
- Department of Kinesiology, Indiana University Bloomington, Bloomington, Indiana, USA
| | - Robert W Motl
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Gary Hunter
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Abby Cook
- Baylor Scott & White Medical Center Temple, Temple, Texas, USA
| | - Nianjun Liu
- Department of Epidemiology and Biostatistics, Indiana University Bloomington, Bloomington, Indiana, USA
| | - Helen Krontiras
- Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Elliot J Lefkowitz
- Department of Computer Science, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Bulent Turan
- Department of Psychology, Koc University, Istanbul, Turkey
| | - Erica Schleicher
- Department of Health Behavior, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Laura Q Rogers
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| |
Collapse
|
25
|
Durgan DJ, Zubcevic J, Vijay-Kumar M, Yang T, Manandhar I, Aryal S, Muralitharan RR, Li HB, Li Y, Abais-Battad JM, Pluznick JL, Muller DN, Marques FZ, Joe B. Prospects for Leveraging the Microbiota as Medicine for Hypertension. Hypertension 2024; 81:951-963. [PMID: 38630799 DOI: 10.1161/hypertensionaha.124.21721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Affiliation(s)
- David J Durgan
- Department of Integrative Physiology and Anesthesiology, Baylor College of Medicine, Houston, TX (D.J.D.)
| | - Jasenka Zubcevic
- Center for Hypertension and Precision Medicine, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Microbiome Consortium, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
| | - Matam Vijay-Kumar
- Center for Hypertension and Precision Medicine, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Microbiome Consortium, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
| | - Tao Yang
- Center for Hypertension and Precision Medicine, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Microbiome Consortium, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
| | - Ishan Manandhar
- Center for Hypertension and Precision Medicine, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Microbiome Consortium, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
| | - Sachin Aryal
- Center for Hypertension and Precision Medicine, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Microbiome Consortium, Toledo, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, OH (J.Z., M.V.-K., T.Y., I.M., S.A., B.J.)
| | - Rikeish R Muralitharan
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Melbourne, Australia (R.R.M., F.Z.M.)
- Victorian Heart Institute, Monash University, Melbourne, Australia (R.R.M., F.Z.M.)
- Baker Heart and Diabetes Institute, Melbourne, Australia (R.R.M., F.Z.M.)
| | - Hong-Bao Li
- Department of Physiology and Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, PR China (H.-B.L., Y.L.)
| | - Ying Li
- Department of Physiology and Pathophysiology, Xi'an Jiaotong University School of Basic Medical Sciences, PR China (H.-B.L., Y.L.)
| | | | - Jennifer L Pluznick
- Department of Physiology, Johns Hopkins School of Medicine, Baltimore, MD (J.L.P.)
| | - Dominik N Muller
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (D.N.M.)
- Experimental and Clinical Research Center, a cooperation of Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Germany (D.N.M.)
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany (D.N.M.)
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany (D.N.M.)
| | - Francine Z Marques
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Melbourne, Australia (R.R.M., F.Z.M.)
- Victorian Heart Institute, Monash University, Melbourne, Australia (R.R.M., F.Z.M.)
- Baker Heart and Diabetes Institute, Melbourne, Australia (R.R.M., F.Z.M.)
| | - Bina Joe
- Department of Integrative Physiology and Anesthesiology, Baylor College of Medicine, Houston, TX (D.J.D.)
| |
Collapse
|
26
|
Shi L, Liu X, Zhang S, Zhou A. Association of gut microbiota with cerebral cortical thickness: A Mendelian randomization study. J Affect Disord 2024; 352:312-320. [PMID: 38382814 DOI: 10.1016/j.jad.2024.02.063] [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: 10/06/2023] [Revised: 02/11/2024] [Accepted: 02/16/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND The causal relationship between gut microbiota and cerebral cortex development remains unclear. We aimed to scrutinize the plausible causal impact of gut microbiota on cortical thickness via Mendelian randomization (MR) study. METHODS Genome-wide association study (GWAS) data for 196 gut microbiota phenotypes (N = 18,340) were obtained as exposures, and GWAS data for cortical thickness-related traits (N = 51,665) were selected as outcomes. Inverse variance weighted was used as the main estimate method. A series of sensitivity analyses was used to test the robustness of the estimates including Cochran's Q test, MR-Egger intercept analysis, Steiger filtering, scatter plot funnel plot and leave-one-out analysis. RESULTS Genetic prediction of high Bacillales (β = 0.005, P = 0.032) and Lactobacillales (β = 0.010, P = 0.012) abundance was associated with a potential increase in global cortical thickness. For specific functional brain subdivisions, genetically predicted order Lactobacillales would potentially increase the thickness of the fusiform (β = 0.014, P = 0.016) and supramarginal (β = 0.017, P = 0.003). Meanwhile, order Bacillales would increase the thickness of fusiform (β = 0.007, P = 0.039), insula (β = 0.011, P = 0.003), rostralanteriorcingulate (β = 0.014, P = 0.002) and supramarginal (β = 0.006, P = 0.043). No significant estimates of heterogeneity or pleiotropy were found. CONCLUSIONS Through MR studies, we discovered genetic prediction of the Lactobacillales and Bacillales orders potentially linked to cortical thickness, affirming gut microbiota may enhance brain structure. Genetically predicted supramarginal and fusiform may be potential targets.
Collapse
Affiliation(s)
- Lubo Shi
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing Digestive Disease Center Beijing, China
| | - Xiaoduo Liu
- Department of Neurology & Innovation Center for Neurological Disorders, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China
| | - Shutian Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing Digestive Disease Center Beijing, China.
| | - Anni Zhou
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing Digestive Disease Center Beijing, China.
| |
Collapse
|
27
|
Ma J, Wang J, Wang G, Wan Y, Li N, Luo L, Gou H, Gu J. The potential beneficial effects of Lactobacillus plantarum GM11 on rats with chronic unpredictable mild stress- induced depression. Nutr Neurosci 2024; 27:413-424. [PMID: 37116073 DOI: 10.1080/1028415x.2023.2205742] [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: 04/30/2023]
Abstract
OBJECTIVE The main purpose of the present study was to assess the beneficial effect of Lactobacillus plantarum GM11 (LacP GM11), screened from Sichuan traditional fermented food, in depressive rats induced by chronic unpredictable mild stress (CUMS). METHODS Male SPF SD rats were randomly assigned to 3 groups: the control group, CUMS group and CUMS + LacP GM11 group (n = 10). The rats in the CUMS and LacP GM11 groups received CUMS stimulation for 42 d. The behavioral tests and levels of monoamine neurotransmitter, glucocorticoid hormone and brain-derived neurotrophic factor (BDNF) in the serum and hippocampus were measured. The effects of LacP GM11 on the mRNA and protein expression of BDNF and cAMP response element binding protein (CREB) in the hippocampus were also investigated. RESULTS After supplementation for 21 d, LacP GM11 was associated with alleviation of depressive-like behavior, not anxiety-like behavior, in depressive rats. LacP GM11 increased the levels of 5-hydroxytryptamine (5-HT) and BDNF and decreased the level of cortisol (CORT) in the serum and hippocampus in depressed rats. In addition, treatment with LacP GM11 also increased the mRNA and protein expression of BDNF and CREB in the hippocampus. CONCLUSIONS This work has revealed that LacP GM11 has potential beneficial effects on depression. This effect might be related to alleviating monoamine neurotransmitter deficiency, HPA axis hyperfunction and CREB-BDNF signaling pathway downregulation. This study demonstrates that LacP GM11 could be a potential therapeutic approach to treat depression and other mental health problems.
Collapse
Affiliation(s)
- Jie Ma
- Department of Research and Development, Weichuang Tianyi Biotechnology Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Junrui Wang
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, People's Republic of China
- Department of Orthopaedics, Chengdu Second People's Hospital, Chengdu, Sichuan, People's Republic of China
| | - Gang Wang
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Yujun Wan
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Nanzhen Li
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Lijuan Luo
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Hongmei Gou
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Jianwen Gu
- Department of Neurosurgery, PLA Strategic Support Force Characteristic Medical Center, Beijing, People's Republic of China
| |
Collapse
|
28
|
Ma X, Kim JK, Shin YJ, Park HS, Lee DY, Yim SV, Kim DH. Lipopolysaccharide-producing Veillonella infantium and Escherichia fergusonii cause vagus nerve-mediated cognitive impairment in mice. Brain Behav Immun 2024; 118:136-148. [PMID: 38428648 DOI: 10.1016/j.bbi.2024.02.031] [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: 11/10/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/03/2024] Open
Abstract
Gut microbiota communicates bidirectionally with the brain through the nervous, immune, and endocrine systems of the gut. In our preliminary study, the fecal microbiota of volunteers with mild cognitive impairment (Fmci) exhibited a higher abundance of Escherichia fergusonii (NK2001), Veillonella infantium (NK2002), and Enterococcus faecium (NK2003) populations compared with those of healthy volunteers. Therefore, we examined the effects of Fmci, NK2001 (gram-negative), NK2002 (gram-negative-like), and NK2003 (gram-positive) on cognitive impairment-like behavior, neuroinflammation, and colitis in mice with or without antibiotics. Fmci transplantation increased cognitive impairment-like behavior, hippocampal tumor necrosis factor (TNF)-α expression, and the size of toll-like receptor (TLR)4+Iba1+, TLR2+Iba1+, and NF-κB+Iba1+ cell populations independent of antibiotic treatment. Oral gavage of NK2001, NK2002, or NK2003, which induced TNF-α expression in Caco-2 cells, significantly increased cognitive impairment-like behavior and hippocampal TNF-α expression and Iba1-positive cell populations and decreased brain-derived neurotrophic factor (BDNF) expression in mice. Celiac vagotomy significantly decreased NK2001- or NK2002-induced cognitive impairment-like behavior and hippocampal Iba1+ cell population and TNF-α expression and increased NK2001- or NK2002-suppressed hippocampal BDNF expression. However, NK2003-induced cognitive impairment-like behavior and hippocampal Iba1+ cell population and TNF-α expression were partially, but not significantly, attenuated by celiac vagotomy. Furthermore, celiac vagotomy did not affect NK2001-, NK2002-, or NK2003-induced lipopolysaccharide (LPS) levels in the blood and feces and TNF-α expression and NF-κB-positive cell population in the colon. In conclusion, LPS-producing NK2001 and NK2002 and LPS-nonproducing NK2003 may induce NF-κB-mediated neuroinflammation through the translocation of byproducts such as LPS and peptidoglycan into the brain through gut-blood/vagus nerve-brain and gut-blood-brain pathways, respectively, resulting in cognitive impairment.
Collapse
Affiliation(s)
- Xiaoyang Ma
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul, Korea
| | - Jeon-Kyung Kim
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul, Korea; School of Pharmacy, Jeonbuk National University, Jeonju-si, Korea.
| | - Yoon-Jung Shin
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul, Korea.
| | - Hee-Seo Park
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul, Korea.
| | - Dong-Yun Lee
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul, Korea.
| | - Sung-Vin Yim
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Kyung Hee University, Seoul, Korea.
| | - Dong-Hyun Kim
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul, Korea.
| |
Collapse
|
29
|
Porru S, Esplugues A, Llop S, Delgado-Saborit JM. The effects of heavy metal exposure on brain and gut microbiota: A systematic review of animal studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123732. [PMID: 38462196 DOI: 10.1016/j.envpol.2024.123732] [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: 10/17/2023] [Revised: 02/12/2024] [Accepted: 03/05/2024] [Indexed: 03/12/2024]
Abstract
The gut-brain axis is a crucial interface between the central nervous system and the gut microbiota. Recent evidence shows that exposure to environmental contaminants, such as heavy metals, can cause dysbiosis in gut microbiota, which may affect the gut-brain communication, impacting aspects of brain function and behavior. This systematic review of the literature aims to evaluate whether deleterious effects on brain function due to heavy metal exposure could be mediated by changes in the gut microbiota profile. Animal studies involving exposure to heavy metals and a comparison with a control group that evaluated neuropsychological outcomes and/or molecular outcomes along with the analysis of microbiota composition were reviewed. The authors independently assessed studies for inclusion, extracted data and assessed risk of bias using the protocol of Systematic Review Center for Laboratory Animal Experimentation (SYRCLE) for preclinical studies. A search in 3 databases yielded 16 eligible studies focused on lead (n = 10), cadmium (n = 1), mercury (n = 3), manganese (n = 1), and combined exposure of lead and manganese (n = 1). The animal species were rats (n = 7), mice (n = 4), zebrafish (n = 3), carp (n = 1) and fruit fly (n = 1). Heavy metals were found to adversely affect cognitive function, behavior, and neuronal morphology. Moreover, heavy metal exposure was associated with changes in the abundance of specific bacterial phyla, such as Firmicutes and Proteobacteria, which play crucial roles in gut health. In some studies, these alterations were correlated with learning and memory impairments and mood disorders. The interplay of heavy metals, gut microbiota, and brain suggests that heavy metals can induce direct brain alterations and indirect effects through the microbiota, contributing to neurotoxicity and the development of neuropsychological disorders. However, the small number of papers under review makes it difficult to draw definitive conclusions. Further research is warranted to unravel the underlying mechanisms and evaluate the translational implications for human health.
Collapse
Affiliation(s)
- Simona Porru
- Department of Medicine, Faculty of Health Sciences. Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain
| | - Ana Esplugues
- Faculty of Nursing and Podiatry, Universitat de València, C/Menendez Pelayo S/n, 46010, València, Spain; Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de Valencia, Av. Catalunya 21, 46020, València, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Av. Monforte de Lemos, 3-5. Pabellón 11, 28029, Madrid, Spain
| | - Sabrina Llop
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de Valencia, Av. Catalunya 21, 46020, València, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Av. Monforte de Lemos, 3-5. Pabellón 11, 28029, Madrid, Spain
| | - Juana María Delgado-Saborit
- Department of Medicine, Faculty of Health Sciences. Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain; Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de Valencia, Av. Catalunya 21, 46020, València, Spain.
| |
Collapse
|
30
|
Wang J, Fan L, Teng T, Wu H, Liu X, Yin B, Li X, Jiang Y, Zhao J, Wu Q, Guo Y, Zhou X, Xie P. Adolescent male rats show altered gut microbiota composition associated with depressive-like behavior after chronic unpredictable mild stress: Differences from adult rats. J Psychiatr Res 2024; 173:183-191. [PMID: 38547740 DOI: 10.1016/j.jpsychires.2024.03.026] [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: 11/16/2023] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 04/17/2024]
Abstract
Accumulating evidence reveals the metabolism and neurotransmitter systems are different in major depressive disorder (MDD) between adolescent and adult patients; however, much is still unknown from the gut microbiome perspective. To minimize confounding factors such as geographical location, ethnicity, diet, and drugs, we investigated the gut microbial differences between adolescent and adult male Sprague-Dawley rats. We exposed the adolescent rats to chronic unpredictable mild stress (CUMS) for 3 weeks and assessed their behavior using the sucrose preference test (SPT), open field test (OFT), and forced swimming test (FST). We collected and sequenced fecal samples after the behavioral tests and compared them with our previous data on adult rats. Both adolescent and adult CUMS rats exhibited reduced sucrose preference in SPT, reduced total distance in OFT, and increased immobility time in FST. Moreover, compared to their respective controls, the adolescent CUMS rats had distinct amplicon sequence variants (ASVs) mainly in the Muribaculaceae family, Bacteroidetes phylum, while the adult CUMS rats had those in the Lachnospiraceae family, Firmicutes phylum. In the adolescent group, the Muribaculaceae negatively correlated with FST and positively correlated with SPT and OFT. In the adult group, the different genera in the Lachnospiraceae showed opposite correlations with FST. Furthermore, the adolescent CUMS rats showed disrupted microbial functions, such as "Xenobiotics biodegradation and metabolism" and "Immune system", while the adult CUMS rats did not. These results confirmed the gut microbiota differences between adolescent and adult rats after CUMS modeling and provided new insight into the age-related influence on depression models.
Collapse
Affiliation(s)
- Jie Wang
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Fan
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Teng Teng
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongyan Wu
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xueer Liu
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bangmin Yin
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xuemei Li
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuanliang Jiang
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jianting Zhao
- Department of Neurology, Xinxiang Central Hospital, The Fourth Clinical College of Xinxiang Medical College, Xinxiang, China
| | - Qingyuan Wu
- Department of Neurology, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Yi Guo
- Department of Neurology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Xinyu Zhou
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Peng Xie
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| |
Collapse
|
31
|
García-Cabrerizo R, Cryan JF. A gut (microbiome) feeling about addiction: Interactions with stress and social systems. Neurobiol Stress 2024; 30:100629. [PMID: 38584880 PMCID: PMC10995916 DOI: 10.1016/j.ynstr.2024.100629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/29/2024] [Accepted: 03/17/2024] [Indexed: 04/09/2024] Open
Abstract
In recent years, an increasing attention has given to the intricate and diverse connection of microorganisms residing in our gut and their impact on brain health and central nervous system disease. There has been a shift in mindset to understand that drug addiction is not merely a condition that affects the brain, it is now being recognized as a disorder that also involves external factors such as the intestinal microbiota, which could influence vulnerability and the development of addictive behaviors. Furthermore, stress and social interactions, which are closely linked to the intestinal microbiota, are powerful modulators of addiction. This review delves into the mechanisms through which the microbiota-stress-immune axis may shape drug addiction and social behaviors. This work integrates preclinical and clinical evidence that demonstrate the bidirectional communication between stress, social behaviors, substance use disorders and the gut microbiota, suggesting that gut microbes might modulate social stress having a significance in drug addiction.
Collapse
Affiliation(s)
- Rubén García-Cabrerizo
- IUNICS, University of the Balearic Islands, Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
- Department of Medicine, University of the Balearic Islands, Palma, Spain
| | - John F. Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| |
Collapse
|
32
|
Colucci Cante R, Nigro F, Passannanti F, Lentini G, Gallo M, Nigro R, Budelli AL. Gut health benefits and associated systemic effects provided by functional components from the fermentation of natural matrices. Compr Rev Food Sci Food Saf 2024; 23:e13356. [PMID: 38767859 DOI: 10.1111/1541-4337.13356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/26/2024] [Accepted: 04/06/2024] [Indexed: 05/22/2024]
Abstract
Recently, the role of the gut microbiota in metabolic health, immunity, behavioral balance, longevity, and intestine comfort has been the object of several studies from scientific communities. They were encouraged by a growing interest from food industries and consumers toward novel fermented ingredients and formulations with powerful biological effects, such as pre, pro, and postbiotic products. Depending on the selected strains, the operating conditions, the addition of suitable reagents or enzymes, the equipment, and the reactor configurations, functional compounds with high bioactivity, such as short-chain fatty acids, gamma-aminobutyric acid, bioactive peptides, and serotonin, can be enhanced and/or produced through fermentation of several vegetable matrices. Otherwise, their formation can also be promoted directly in the gut after the dietary intake of fermented foods: In this case, fermentation will aim to increase the content of precursor substances, such as indigestible fibers, polyphenols, some amino acids, and resistant starch, which can be potentially metabolized by endogenous gut microorganisms and converted in healthy molecules. This review provides an overview of the main functional components currently investigated in literature and the associated gut health benefits. The current state of the art about fermentation technology as a promising functionalization tool to promote the direct or indirect formation of gut-health-enhancing components was deepened, highlighting the importance of optimizing microorganism selection, system setups, and process conditions according to the target compound of interest. The collected data suggested the possibility of gaining novel functional food ingredients or products rich in functional molecules through fermentation without performing additional extraction and purification stages, which are needed when conventional culture broths are used.
Collapse
Affiliation(s)
- Rosa Colucci Cante
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
- Department of Industrial Engineering, University of Niccolò Cusano, Rome, Italy
| | - Federica Nigro
- I. T. P. Innovation and Technology Provider S.r.l., Naples, Italy
| | - Francesca Passannanti
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
- I. T. P. Innovation and Technology Provider S.r.l., Naples, Italy
| | - Giulia Lentini
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
| | - Marianna Gallo
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
- Department of Industrial Engineering, University of Niccolò Cusano, Rome, Italy
- I. T. P. Innovation and Technology Provider S.r.l., Naples, Italy
| | - Roberto Nigro
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
| | | |
Collapse
|
33
|
Zhang C, Bo R, Zhou T, Chen N, Yuan Y. The raphe nuclei are the early lesion site of gastric α-synuclein propagation to the substantia nigra. Acta Pharm Sin B 2024; 14:2057-2076. [PMID: 38799632 PMCID: PMC11119576 DOI: 10.1016/j.apsb.2024.01.015] [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: 09/23/2023] [Revised: 12/14/2023] [Accepted: 01/05/2024] [Indexed: 05/29/2024] Open
Abstract
Parkinson's disease (PD) is a neurodegeneration disease with α-synuclein accumulated in the substantia nigra pars compacta (SNpc) and most of the dopaminergic neurons are lost in SNpc while patients are diagnosed with PD. Exploring the pathology at an early stage contributes to the development of the disease-modifying strategy. Although the "gut-brain" hypothesis is proposed to explain the underlying mechanism, where the earlier lesioned site in the brain of gastric α-synuclein and how α-synuclein further spreads are not fully understood. Here we report that caudal raphe nuclei (CRN) are the early lesion site of gastric α-synuclein propagating through the spinal cord, while locus coeruleus (LC) and substantia nigra pars compacta (SNpc) were further affected over a time frame of 7 months. Pathological α-synuclein propagation via CRN leads to neuron loss and disordered neuron activity, accompanied by abnormal motor and non-motor behavior. Potential neuron circuits are observed among CRN, LC, and SNpc, which contribute to the venerability of dopaminergic neurons in SNpc. These results show that CRN is the key region for the gastric α-synuclein spread to the midbrain. Our study provides valuable details for the "gut-brain" hypothesis and proposes a valuable PD model for future research on early PD intervention.
Collapse
Affiliation(s)
| | | | - Tiantian Zhou
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Naihong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| | - Yuhe Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Materia Medica, Beijing 100050, China
| |
Collapse
|
34
|
Adedara IA, Mohammed KA, Canzian J, Ajayi BO, Farombi EO, Emanuelli T, Rosemberg DB, Aschner M. Utility of zebrafish-based models in understanding molecular mechanisms of neurotoxicity mediated by the gut-brain axis. ADVANCES IN NEUROTOXICOLOGY 2024; 11:177-208. [PMID: 38741945 PMCID: PMC11090488 DOI: 10.1016/bs.ant.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The gut microbes perform several beneficial functions which impact the periphery and central nervous systems of the host. Gut microbiota dysbiosis is acknowledged as a major contributor to the development of several neuropsychiatric and neurological disorders including bipolar disorder, depression, anxiety, Parkinson's disease, Alzheimer's disease, attention deficit hyperactivity disorder, and autism spectrum disorder. Thus, elucidation of how the gut microbiota-brain axis plays a role in health and disease conditions is a potential novel approach to prevent and treat brain disorders. The zebrafish (Danio rerio) is an invaluable vertebrate model that possesses conserved brain and intestinal features with those of humans, thus making zebrafish a valued model to investigate the interplay between the gut microbiota and host health. This chapter describes current findings on the utility of zebrafish in understanding molecular mechanisms of neurotoxicity mediated via the gut microbiota-brain axis. Specifically, it highlights the utility of zebrafish as a model organism for understanding how anthropogenic chemicals, pharmaceuticals and bacteria exposure affect animals and human health via the gut-brain axis.
Collapse
Affiliation(s)
- Isaac A. Adedara
- Department of Food Science and Technology, Center of Rural Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Khadija A. Mohammed
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Julia Canzian
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Babajide O. Ajayi
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
- Department of Chemical Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria
| | - Ebenezer O. Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Tatiana Emanuelli
- Department of Food Science and Technology, Center of Rural Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Denis B. Rosemberg
- Laboratory of Experimental Neuropsychobiology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
- The International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, United States
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States
| |
Collapse
|
35
|
Agranyoni O, Sur D, Amidror S, Shidlovsky N, Bagaev A, Yissachar N, Pinhasov A, Navon-Venezia S. Colon impairments and inflammation driven by an altered gut microbiota leads to social behavior deficits rescued by hyaluronic acid and celecoxib. BMC Med 2024; 22:182. [PMID: 38685001 PMCID: PMC11059729 DOI: 10.1186/s12916-024-03323-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 02/27/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND The exact mechanisms linking the gut microbiota and social behavior are still under investigation. We aimed to explore the role of the gut microbiota in shaping social behavior deficits using selectively bred mice possessing dominant (Dom) or submissive (Sub) behavior features. Sub mice exhibit asocial, depressive- and anxiety-like behaviors, as well as systemic inflammation, all of which are shaped by their impaired gut microbiota composition. METHODS An age-dependent comparative analysis of the gut microbiota composition of Dom and Sub mice was performed using 16S rRNA sequencing, from early infancy to adulthood. Dom and Sub gastrointestinal (GI) tract anatomy, function, and immune profiling analyses were performed using histology, RT-PCR, flow cytometry, cytokine array, and dextran-FITC permeability assays. Short chain fatty acids (SCFA) levels in the colons of Dom and Sub mice were quantified using targeted metabolomics. To support our findings, adult Sub mice were orally treated with hyaluronic acid (HA) (30 mg/kg) or with the non-steroidal anti-inflammatory agent celecoxib (16 mg/kg). RESULTS We demonstrate that from early infancy the Sub mouse gut microbiota lacks essential bacteria for immune maturation, including Lactobacillus and Bifidobacterium genera. Furthermore, from birth, Sub mice possess a thicker colon mucin layer, and from early adulthood, they exhibit shorter colonic length, altered colon integrity with increased gut permeability, reduced SCFA levels and decreased regulatory T-cells, compared to Dom mice. Therapeutic intervention in adult Sub mice treated with HA, celecoxib, or both agents, rescued Sub mice phenotypes. HA treatment reduced Sub mouse gut permeability, increased colon length, and improved mouse social behavior deficits. Treatment with celecoxib increased sociability, reduced depressive- and anxiety-like behaviors, and increased colon length, and a combined treatment resulted in similar effects as celecoxib administered as a single agent. CONCLUSIONS Overall, our data suggest that treating colon inflammation and decreasing gut permeability can restore gut physiology and prevent social deficits later in life. These findings provide critical insights into the importance of early life gut microbiota in shaping gut immunity, functionality, and social behavior, and may be beneficial for the development of future therapeutic strategies.
Collapse
Affiliation(s)
- Oryan Agranyoni
- Department of Molecular Biology and the Dr. Miriam and Sheldon G. School of Medicine, Ariel University, Ariel, Israel
| | - Debpali Sur
- Department of Molecular Biology and the Dr. Miriam and Sheldon G. School of Medicine, Ariel University, Ariel, Israel
| | - Sivan Amidror
- The Goodman Faculty of Life Sciences, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan, Israel
| | - Nuphar Shidlovsky
- The Goodman Faculty of Life Sciences, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan, Israel
| | - Anastasia Bagaev
- Department of Molecular Biology and the Dr. Miriam and Sheldon G. School of Medicine, Ariel University, Ariel, Israel
| | - Nissan Yissachar
- The Goodman Faculty of Life Sciences, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan, Israel
| | - Albert Pinhasov
- Department of Molecular Biology and the Dr. Miriam and Sheldon G. School of Medicine, Ariel University, Ariel, Israel.
| | - Shiri Navon-Venezia
- Department of Molecular Biology and the Dr. Miriam and Sheldon G. School of Medicine, Ariel University, Ariel, Israel.
| |
Collapse
|
36
|
Fang H, Hou Q, Zhang W, Su Z, Zhang J, Li J, Lin J, Wang Z, Yu X, Yang Y, Wang Q, Li X, Li Y, Hu L, Li S, Wang X, Liao L. Fecal Microbiota Transplantation Improves Clinical Symptoms of Fibromyalgia: An Open-Label, Randomized, Nonplacebo-Controlled Study. THE JOURNAL OF PAIN 2024:104535. [PMID: 38663650 DOI: 10.1016/j.jpain.2024.104535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 03/03/2024] [Accepted: 04/09/2024] [Indexed: 05/26/2024]
Abstract
Fibromyalgia (FM) is a complex and poorly understood disorder characterized by chronic and widespread musculoskeletal pain, of which the etiology remains unknown. Now, the disorder of the gut microbiome is considered as one of the main causes of FM. This study aimed to investigate the potential benefits of fecal microbiota transplantation (FMT) in patients with FM. A total of 45 patients completed this open-label, randomized, nonplacebo-controlled clinical study. The numerical rating scale scores in the FMT group were slightly lower than the control group at 1 month (P > .05), and they decreased significantly at 2, 3, 6, and 12 months after treatment (P < .001). Besides, compared with the control group, the Widespread Pain Index, Symptom Severity, Hospital Anxiety and Depression Scale, and Pittsburgh Sleep Quality Index scores were significantly lower in the FMT group at different time points (P < .001). After 6 months of treatment, there was a significant increase in serotonin (5-hydroxytryptamine) and gamma-aminobutyric acid levels (P < .001), while glutamate levels significantly decreased in the FMT group (P < .001). The total effective rate was higher in the FMT group (90.9%) compared to the control group (56.5%) after 6 months of treatment (P < .05). FMT can effectively improve the clinical symptoms of FM. With the close relations between the changes in neurotransmitters and FM, certain neurotransmitters may serve as a diagnostic marker or potential target for FM patients. PERSPECTIVE: FMT is a novel therapy that aims to restore the gut microbial balance and modulate the gut-brain axis. It is valuable to further explore the therapeutic effect of FMT on FM. Furthermore, certain neurotransmitters may become a diagnostic marker or a new therapeutic target for FM patients.
Collapse
Affiliation(s)
- Hongwei Fang
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China; Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China; Institute of Pain Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qianhao Hou
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Pain Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wei Zhang
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Pain Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zehua Su
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Pain Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jinyuan Zhang
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Pain Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jingze Li
- Endoscopy Center, Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jiaqi Lin
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zetian Wang
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiuqin Yu
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yu Yang
- Department of Anesthesiology, Huangpu Branch of the Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Wang
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xin Li
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yuling Li
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Lungui Hu
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shun Li
- Center for Rehabilitation Medicine, Department of Pain Management, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xiangrui Wang
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Pain Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Lijun Liao
- Department of Pain Management, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Pain Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| |
Collapse
|
37
|
Rahman Z, Padhy HP, Dandekar MP. Cell-Free Supernatant of Lactobacillus rhamnosus and Bifidobacterium breve Ameliorates Ischemic Stroke-Generated Neurological Deficits in Rats. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10256-w. [PMID: 38656733 DOI: 10.1007/s12602-024-10256-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2024] [Indexed: 04/26/2024]
Abstract
The beneficial effects of probiotics, postbiotics, and paraprobiotics have already been registered in managing ischemic stroke-generated neuroinflammation and gut dysbiosis. Herein, we examined the impact of cell-free supernatant (CFS) obtained from probiotics (Lactobacillus rhamnosus UBLR-58 and Bifidobacterium breve UBBr-01) in a rat transient middle cerebral artery occlusion (MCAO) model of focal cerebral injury. Pre-MCAO supplementation of probiotics (2 × 109 CFU/mL) for 21 days or CFS (1 mL/rat) for 7 days protect the MCAO-induced somatosensory and motor impairments recorded at 24 h and 72 h after reperfusion in foot-fault, rotarod, adhesive removal, and vibrissae-evoked forelimb placing tests. We also noted the reduced infarct area and neuronal degradation in the right hemisphere of probiotics- and CFS-recipient MCAO-operated animals. Moreover, MCAO-induced altered concentrations of glial-fibrillary acidic protein, NeuN, zonula occludens-1 (ZO-1), TLR4, IL-1β, IL-6, and TNF-α, as well as matrix metalloproteinase-9 (MMP9) were reversed in the treatment groups. Probiotics and CFS treatment ameliorated the elevated levels of IL-6, IL-1β, and MMP9 in the blood plasma of rats. The disrupted microbial phyla, Firmicutes-to-Bacteroides ratio, villi/crypt ratio, and decreased mucin-producing goblet cells, ZO-1, and occludin in the colon of MCAO-operated rats were recovered following probiotics and CFS treatment. NMR characterization of CFS and rat blood plasma revealed the presence of several important bacterial metabolites. These findings suggest that the CFS obtained from Lactobacillus rhamnosus UBLR-58 and Bifidobacterium breve UBBr-01 has the propensity to improve MCAO-generated neurological dysfunctions in rats by dampening neuroinflammation and modulating the gut-brain axis modulators.
Collapse
Affiliation(s)
- Ziaur Rahman
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, PIN 500037, Telangana, India
| | - Hara Prasad Padhy
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Manoj P Dandekar
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, PIN 500037, Telangana, India.
| |
Collapse
|
38
|
Griffiths JA, Yoo BB, Thuy-Boun P, Cantu VJ, Weldon KC, Challis C, Sweredoski MJ, Chan KY, Thron TM, Sharon G, Moradian A, Humphrey G, Zhu Q, Shaffer JP, Wolan DW, Dorrestein PC, Knight R, Gradinaru V, Mazmanian SK. Peripheral neuronal activation shapes the microbiome and alters gut physiology. Cell Rep 2024; 43:113953. [PMID: 38517896 PMCID: PMC11132177 DOI: 10.1016/j.celrep.2024.113953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/07/2023] [Accepted: 02/27/2024] [Indexed: 03/24/2024] Open
Abstract
The gastrointestinal (GI) tract is innervated by intrinsic neurons of the enteric nervous system (ENS) and extrinsic neurons of the central nervous system and peripheral ganglia. The GI tract also harbors a diverse microbiome, but interactions between the ENS and the microbiome remain poorly understood. Here, we activate choline acetyltransferase (ChAT)-expressing or tyrosine hydroxylase (TH)-expressing gut-associated neurons in mice to determine effects on intestinal microbial communities and their metabolites as well as on host physiology. The resulting multi-omics datasets support broad roles for discrete peripheral neuronal subtypes in shaping microbiome structure, including modulating bile acid profiles and fungal colonization. Physiologically, activation of either ChAT+ or TH+ neurons increases fecal output, while only ChAT+ activation results in increased colonic contractility and diarrhea-like fluid secretion. These findings suggest that specific subsets of peripherally activated neurons differentially regulate the gut microbiome and GI physiology in mice without involvement of signals from the brain.
Collapse
Affiliation(s)
- Jessica A Griffiths
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD 20815, USA
| | - Bryan B Yoo
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Peter Thuy-Boun
- Departments of Molecular Medicine and Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Victor J Cantu
- Department of Pediatrics, University of California, San Diego, San Diego, CA, USA
| | - Kelly C Weldon
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, San Diego, CA, USA; UCSD Center for Microbiome Innovation, University of California, San Diego, San Diego, CA, USA
| | - Collin Challis
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Michael J Sweredoski
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Ken Y Chan
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Taren M Thron
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Gil Sharon
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Annie Moradian
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Gregory Humphrey
- Department of Pediatrics, University of California, San Diego, San Diego, CA, USA
| | - Qiyun Zhu
- Department of Pediatrics, University of California, San Diego, San Diego, CA, USA
| | - Justin P Shaffer
- Department of Pediatrics, University of California, San Diego, San Diego, CA, USA
| | - Dennis W Wolan
- Departments of Molecular Medicine and Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Pieter C Dorrestein
- Department of Pediatrics, University of California, San Diego, San Diego, CA, USA; Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, San Diego, CA, USA; UCSD Center for Microbiome Innovation, University of California, San Diego, San Diego, CA, USA
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, San Diego, CA, USA; UCSD Center for Microbiome Innovation, University of California, San Diego, San Diego, CA, USA; Department of Computer Science and Engineering, University of California, San Diego, San Diego, CA, USA; Shu Chien-Gene Lay Department of Engineering, University of California, San Diego, San Diego, CA, USA; Halıcıoğlu Data Science Institute, University of California, San Diego, San Diego, CA, USA
| | - Viviana Gradinaru
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD 20815, USA
| | - Sarkis K Mazmanian
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD 20815, USA.
| |
Collapse
|
39
|
Kolzhetsov N, Markelova N, Frolova M, Alikina O, Glazunova O, Safonova L, Kalashnikova I, Yudin V, Makarov V, Keskinov A, Yudin S, Troshina D, Rechkina V, Shcherbakova V, Shavkunov K, Ozoline O. Enterotype-Dependent Probiotic-Mediated Changes in the Male Rat Intestinal Microbiome In Vivo and In Vitro. Int J Mol Sci 2024; 25:4558. [PMID: 38674145 PMCID: PMC11049970 DOI: 10.3390/ijms25084558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/08/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Beneficial properties of lactic acid bacteria have been known long ago, but particular interest in probiotics has arisen in the last two decades due to the understanding of the important role of intestinal microflora in human life. Thus, the ability of probiotics to support healthy homeostasis of gut microbiomes has received particular attention. Here, we evaluated the effect of a probiotic consisting of Bifidobacterium longum and Lacticaseibacillus paracasei on the gut microbiome of male rats, assessed their persistence in the fecal biota, and compared probiotic-mediated changes in vitro and in vivo. As expected, microbiomes of two enterotypes were identified in the feces of 21 animals, and it turned out that even a single dose of the probiotic altered the microbial composition. Upon repeated administration, the E1 biota temporarily acquired properties of the E2 type. Being highly sensitive to the intervention of probiotic bacteria at the phylum and genus levels, the fecal microbiomes retained the identity of their enterotypes when transferred to a medium optimized for gut bacteria. For the E2 biota, even similarities between probiotic-mediated reactions in vitro and in vivo were detected. Therefore, fecal-derived microbial communities are proposed as model consortia to optimize the response of resident bacteria to various agents.
Collapse
Affiliation(s)
- Nikolay Kolzhetsov
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Natalia Markelova
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Maria Frolova
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Olga Alikina
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Olga Glazunova
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Lubov Safonova
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Irina Kalashnikova
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Vladimir Yudin
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Valentin Makarov
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Anton Keskinov
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Sergey Yudin
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical and Biological Agency, 119121 Moscow, Russia; (L.S.); (I.K.); (V.Y.); (V.M.); (A.K.); (S.Y.)
| | - Daria Troshina
- Faculty of Biotechnology, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Viktoria Rechkina
- Laboratory of Anaerobic Microorganisms, Institute of Biochemistry and Physiology of Microorganisms of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (V.R.); (V.S.)
| | - Viktoria Shcherbakova
- Laboratory of Anaerobic Microorganisms, Institute of Biochemistry and Physiology of Microorganisms of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (V.R.); (V.S.)
| | - Konstantin Shavkunov
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| | - Olga Ozoline
- Laboratory of Functional Genomics of Prokaryotes, Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.K.); (N.M.); (M.F.); (O.A.); (O.G.); (K.S.)
| |
Collapse
|
40
|
Scuto M, Rampulla F, Reali GM, Spanò SM, Trovato Salinaro A, Calabrese V. Hormetic Nutrition and Redox Regulation in Gut-Brain Axis Disorders. Antioxidants (Basel) 2024; 13:484. [PMID: 38671931 PMCID: PMC11047582 DOI: 10.3390/antiox13040484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
The antioxidant and anti-inflammatory effects of hormetic nutrition for enhancing stress resilience and overall human health have received much attention. Recently, the gut-brain axis has attracted prominent interest for preventing and therapeutically impacting neuropathologies and gastrointestinal diseases. Polyphenols and polyphenol-combined nanoparticles in synergy with probiotics have shown to improve gut bioavailability and blood-brain barrier (BBB) permeability, thus inhibiting the oxidative stress, metabolic dysfunction and inflammation linked to gut dysbiosis and ultimately the onset and progression of central nervous system (CNS) disorders. In accordance with hormesis, polyphenols display biphasic dose-response effects by activating at a low dose the Nrf2 pathway resulting in the upregulation of antioxidant vitagenes, as in the case of heme oxygenase-1 upregulated by hidrox® or curcumin and sirtuin-1 activated by resveratrol to inhibit reactive oxygen species (ROS) overproduction, microbiota dysfunction and neurotoxic damage. Importantly, modulation of the composition and function of the gut microbiota through polyphenols and/or probiotics enhances the abundance of beneficial bacteria and can prevent and treat Alzheimer's disease and other neurological disorders. Interestingly, dysregulation of the Nrf2 pathway in the gut and the brain can exacerbate selective susceptibility under neuroinflammatory conditions to CNS disorders due to the high vulnerability of vagal sensory neurons to oxidative stress. Herein, we aimed to discuss hormetic nutrients, including polyphenols and/or probiotics, targeting the Nrf2 pathway and vitagenes for the development of promising neuroprotective and therapeutic strategies to suppress oxidative stress, inflammation and microbiota deregulation, and consequently improve cognitive performance and brain health. In this review, we also explore interactions of the gut-brain axis based on sophisticated and cutting-edge technologies for novel anti-neuroinflammatory approaches and personalized nutritional therapies.
Collapse
Affiliation(s)
- Maria Scuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy; (F.R.); (G.M.R.); (S.M.S.); (V.C.)
| | | | | | | | - Angela Trovato Salinaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy; (F.R.); (G.M.R.); (S.M.S.); (V.C.)
| | | |
Collapse
|
41
|
Li S, Cai Y, Wang S, Luo L, Zhang Y, Huang K, Guan X. Gut microbiota: the indispensable player in neurodegenerative diseases. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38572789 DOI: 10.1002/jsfa.13509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/26/2024] [Accepted: 04/04/2024] [Indexed: 04/05/2024]
Abstract
As one of the most urgent social and health problems in the world, neurodegenerative diseases have always been of interest to researchers. However, the pathological mechanisms and therapeutic approaches are not achieved. In addition to the established roles of oxidative stress, inflammation and immune response, changes of gut microbiota are also closely related to the pathogenesis of neurodegenerative diseases. Gut microbiota is the central player of the gut-brain axis, the dynamic bidirectional communication pathway between gut microbiota and central nervous system, and emerging insights have confirmed its indispensability in the development of neurodegenerative diseases. In this review, we discuss the complex relationship between gut microbiota and the central nervous system from the perspective of the gut-brain axis; review the mechanism of microbiota for the modulation different neurodegenerative diseases and discuss how different dietary patterns affect neurodegenerative diseases via gut microbiota; and prospect the employment of gut microbiota in the therapeutic approach to those diseases. © 2024 Society of Chemical Industry.
Collapse
Affiliation(s)
- Sen Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Yuwei Cai
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Shuo Wang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Lei Luo
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Yu Zhang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Kai Huang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Xiao Guan
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| |
Collapse
|
42
|
Dziedzic A, Maciak K, Bliźniewska-Kowalska K, Gałecka M, Kobierecka W, Saluk J. The Power of Psychobiotics in Depression: A Modern Approach through the Microbiota-Gut-Brain Axis: A Literature Review. Nutrients 2024; 16:1054. [PMID: 38613087 PMCID: PMC11013390 DOI: 10.3390/nu16071054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
The microbiota-gut-brain (MGB) axis is a complex communication network linking the gut, microbiota, and brain, influencing various aspects of health and disease. Dysbiosis, a disturbance in the gut microbiome equilibrium, can significantly impact the MGB axis, leading to alterations in microbial composition and function. Emerging evidence highlights the connection between microbiota alterations and neurological and psychiatric disorders, including depression. This review explores the potential of psychobiotics in managing depressive disorders, emphasizing their role in restoring microbial balance and influencing the MGB axis. Psychobiotics exhibit positive effects on the intestinal barrier, immune response, cortisol levels, and the hypothalamic-pituitary-adrenal (HPA) axis. Studies suggest that probiotics may serve as an adjunct therapy for depression, especially in treatment-resistant cases. This review discusses key findings from studies on psychobiotics interventions, emphasizing their impact on the gut-brain axis and mental health. The increasing acceptance of the expanded concept of the MGB axis underscores the importance of microorganisms in mental well-being. As our understanding of the microbiome's role in health and disease grows, probiotics emerge as promising agents for addressing mental health issues, providing new avenues for therapeutic interventions in depressive disorders.
Collapse
Affiliation(s)
- Angela Dziedzic
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biochemistry, Pomorska 141/143, 90-236 Lodz, Poland; (K.M.); (W.K.); (J.S.)
| | - Karina Maciak
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biochemistry, Pomorska 141/143, 90-236 Lodz, Poland; (K.M.); (W.K.); (J.S.)
| | | | - Małgorzata Gałecka
- Department of Psychotherapy, Medical University of Lodz, Aleksandrowska 159, 91-229 Lodz, Poland;
| | - Weronika Kobierecka
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biochemistry, Pomorska 141/143, 90-236 Lodz, Poland; (K.M.); (W.K.); (J.S.)
| | - Joanna Saluk
- University of Lodz, Faculty of Biology and Environmental Protection, Department of General Biochemistry, Pomorska 141/143, 90-236 Lodz, Poland; (K.M.); (W.K.); (J.S.)
| |
Collapse
|
43
|
Tao W, Zhang Y, Wang B, Nie S, Fang L, Xiao J, Wu Y. Advances in molecular mechanisms and therapeutic strategies for central nervous system diseases based on gut microbiota imbalance. J Adv Res 2024:S2090-1232(24)00124-3. [PMID: 38579985 DOI: 10.1016/j.jare.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/12/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUD Central nervous system (CNS) diseases pose a serious threat to human health, but the regulatory mechanisms and therapeutic strategies of CNS diseases need to be further explored. It has been demonstrated that the gut microbiota (GM) is closely related to CNS disease. GM structure disorders, abnormal microbial metabolites, intestinal barrier destruction and elevated inflammation exist in patients with CNS diseases and promote the development of CNS diseases. More importantly, GM remodeling alleviates CNS pathology to some extent. AIM OF REVIEW Here, we have summarized the regulatory mechanism of the GM in CNS diseases and the potential treatment strategies for CNS repair based on GM regulation, aiming to provide safer and more effective strategies for CNS repair from the perspective of GM regulation. KEY SCIENTIFIC CONCEPTS OF REVIEW The abundance and composition of GM is closely associated with the CNS diseases. On the basis of in-depth analysis of GM changes in mice with CNS disease, as well as the changes in its metabolites, therapeutic strategies, such as probiotics, prebiotics, and FMT, may be used to regulate GM balance and affect its microbial metabolites, thereby promoting the recovery of CNS diseases.
Collapse
Affiliation(s)
- Wei Tao
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Yanren Zhang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Bingbin Wang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Saiqun Nie
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Li Fang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Yanqing Wu
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China.
| |
Collapse
|
44
|
Weber KT, Varian BJ, Erdman SE. The gut microbiome and sociability. Front Neurosci 2024; 18:1372274. [PMID: 38629051 PMCID: PMC11018908 DOI: 10.3389/fnins.2024.1372274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
The human gut microbiome plays an important role in the maturation of the neural, immune, and endocrine systems. Research data from animal models shows that gut microbiota communicate with the host's brain in an elaborate network of signaling pathways, including the vagus nerve. Part of the microbiome's influence extends to the behavioral and social development of its host. As a social species, a human's ability to communicate with others is imperative to their survival and quality of life. Current research explores the gut microbiota's developmental influence as well as how these gut-brain pathways can be leveraged to alleviate the social symptoms associated with various neurodevelopmental and psychiatric diseases. One intriguing vein of research in animal models centers on probiotic treatment, which leads to downstream increased circulation of endogenous oxytocin, a neuropeptide hormone relevant to sociability. Further research may lead to therapeutic applications in humans, particularly in the early stages of their lives.
Collapse
Affiliation(s)
| | | | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, United States
| |
Collapse
|
45
|
Zhang N, Gao X, Li D, Xu L, Zhou G, Xu M, Peng L, Sun G, Pan F, Li Y, Ren R, Huang R, Yang Y, Wang Z. Sleep deprivation-induced anxiety-like behaviors are associated with alterations in the gut microbiota and metabolites. Microbiol Spectr 2024; 12:e0143723. [PMID: 38421192 PMCID: PMC10986621 DOI: 10.1128/spectrum.01437-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 02/03/2024] [Indexed: 03/02/2024] Open
Abstract
The present study aimed to characterize the gut microbiota and serum metabolome changes associated with sleep deprivation (SD) as well as to explore the potential benefits of multi-probiotic supplementation in alleviating SD-related mental health disorders. Rats were subjected to 7 days of SD, followed by 14 days of multi-probiotics or saline administration. Open-field tests were conducted at baseline, end of SD (day 7), and after 14 days of saline or multi-probiotic gavage (day 21). Metagenomic sequencing was conducted on fecal samples, and serum metabolites were measured by untargeted liquid chromatography tandem-mass spectrometry. At day 7, anxiety-like behaviors, including significant decreases in total movement distance (P = 0.0002) and staying time in the central zone (P = 0.021), were observed. In addition, increased levels of lipopolysaccharide (LPS; P = 0.028) and decreased levels of uridine (P = 0.018) and tryptophan (P = 0.01) were detected in rats after 7 days of SD. After SD, the richness of the gut bacterial community increased, and the levels of Akkermansia muciniphila, Muribaculum intestinale, and Bacteroides caecimuris decreased. The changes in the host metabolism and gut microbiota composition were strongly associated with the anxiety-like behaviors caused by SD. In addition, multi-probiotic supplementation for 14 days modestly improved the anxiety-like behaviors in SD rats but significantly reduced the serum level of LPS (P = 0.045). In conclusion, SD induces changes in the gut microbiota and serum metabolites, which may contribute to the development of chronic inflammatory responses and affect the gut-brain axis, causing anxiety-like behaviors. Probiotic supplementation significantly reduces serum LPS, which may alleviate the influence of chronic inflammation. IMPORTANCE The disturbance in the gut microbiome and serum metabolome induced by SD may be involved in anxiety-like behaviors. Probiotic supplementation decreases serum levels of LPS, but this reduction may be insufficient for alleviating SD-induced anxiety-like behaviors.
Collapse
Affiliation(s)
- Nana Zhang
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Xuefeng Gao
- Shenzhen Key Laboratory of Gastrointestinal Microbiota and Disease, Integrative Microecology Clinical Center, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
- Shenzhen Clinical Research Center for Digestive Disease, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
- The Clinical Innovation & Research Center, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - Donghao Li
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Lijuan Xu
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Guanzhou Zhou
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Mengqi Xu
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Lihua Peng
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Gang Sun
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Fei Pan
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Yan Li
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Rongrong Ren
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Ruolan Huang
- Department of Neurology, Shenzhen University Clinical Research Center for Neurological Diseases, Shenzhen University General Hospital, Shenzhen, China
| | - Yunsheng Yang
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| | - Zikai Wang
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology and Hepatology, The First Centre of Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
46
|
Braga JD, Thongngam M, Kumrungsee T. Gamma-aminobutyric acid as a potential postbiotic mediator in the gut-brain axis. NPJ Sci Food 2024; 8:16. [PMID: 38565567 PMCID: PMC10987602 DOI: 10.1038/s41538-024-00253-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 02/01/2024] [Indexed: 04/04/2024] Open
Abstract
Gamma-aminobutyric acid (GABA) plays a crucial role in the central nervous system as an inhibitory neurotransmitter. Imbalances of this neurotransmitter are associated with neurological diseases, such as Alzheimer's and Parkinson's disease, and psychological disorders, including anxiety, depression, and stress. Since GABA has long been believed to not cross the blood-brain barrier, the effects of circulating GABA on the brain are neglected. However, emerging evidence has demonstrated that changes in both circulating and brain levels of GABA are associated with changes in gut microbiota composition and that changes in GABA levels and microbiota composition play a role in modulating mental health. This recent research has raised the possibility that GABA may be a potent mediator of the gut-brain axis. This review article will cover up-to-date information about GABA-producing microorganisms isolated from human gut and food sources, explanation why those microorganisms produce GABA, food factors inducing gut-GABA production, evidence suggesting GABA as a mediator linking between gut microbiota and mental health, including anxiety, depression, stress, epilepsy, autism spectrum disorder, and attention deficit hyperactivity disorder, and novel information regarding homocarnosine-a predominant brain peptide that is a putative downstream mediator of GABA in regulating brain functions. This review will help us to understand how the gut microbiota and GABA-homocarnosine metabolism play a significant role in brain functions. Nonetheless, it could support further research on the use of GABA production-inducing microorganisms and food factors as agents to treat neurological and psychological disorders.
Collapse
Affiliation(s)
- Jason D Braga
- Laboratory of Molecular Nutrition, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, 739-8527, Japan
- Institute of Food Science and Technology, College of Agriculture, Food, Environment and Natural Resources, Cavite State University, Indang, Cavite, 4122, Philippines
| | - Masubon Thongngam
- Department of Food Science and Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900, Thailand
| | - Thanutchaporn Kumrungsee
- Laboratory of Molecular Nutrition, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, 739-8527, Japan.
- Smart Agriculture, Graduate School of Innovation and Practice for Smart Society, Hiroshima University, Hiroshima, 739-8527, Japan.
| |
Collapse
|
47
|
Mukherjee A, Breselge S, Dimidi E, Marco ML, Cotter PD. Fermented foods and gastrointestinal health: underlying mechanisms. Nat Rev Gastroenterol Hepatol 2024; 21:248-266. [PMID: 38081933 DOI: 10.1038/s41575-023-00869-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/01/2023] [Indexed: 12/20/2023]
Abstract
Although fermentation probably originally developed as a means of preserving food substrates, many fermented foods (FFs), and components therein, are thought to have a beneficial effect on various aspects of human health, and gastrointestinal health in particular. It is important that any such perceived benefits are underpinned by rigorous scientific research to understand the associated mechanisms of action. Here, we review in vitro, ex vivo and in vivo studies that have provided insights into the ways in which the specific food components, including FF microorganisms and a variety of bioactives, can contribute to health-promoting activities. More specifically, we draw on representative examples of FFs to discuss the mechanisms through which functional components are produced or enriched during fermentation (such as bioactive peptides and exopolysaccharides), potentially toxic or harmful compounds (such as phytic acid, mycotoxins and lactose) are removed from the food substrate, and how the introduction of fermentation-associated live or dead microorganisms, or components thereof, to the gut can convey health benefits. These studies, combined with a deeper understanding of the microbial composition of a wider variety of modern and traditional FFs, can facilitate the future optimization of FFs, and associated microorganisms, to retain and maximize beneficial effects in the gut.
Collapse
Affiliation(s)
| | - Samuel Breselge
- Teagasc Food Research Centre, Moorepark, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
| | - Eirini Dimidi
- Department of Nutritional Sciences, King's College London, London, UK
| | - Maria L Marco
- Department of Food Science & Technology, University of California, Davis, CA, USA
| | - Paul D Cotter
- Teagasc Food Research Centre, Moorepark, Cork, Ireland.
- APC Microbiome Ireland, Cork, Ireland.
- VistaMilk, Cork, Ireland.
| |
Collapse
|
48
|
Williams ZAP, Lang L, Nicolas S, Clarke G, Cryan J, Vauzour D, Nolan YM. Do microbes play a role in Alzheimer's disease? Microb Biotechnol 2024; 17:e14462. [PMID: 38593310 PMCID: PMC11003713 DOI: 10.1111/1751-7915.14462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 03/19/2024] [Indexed: 04/11/2024] Open
Abstract
Alzheimer's disease is a complex and progressive condition that affects essential neurological functions such as memory and reasoning. In the brain, neuronal loss, synaptic dysfunction, proteinopathy, neurofibrillary tangles, and neuroinflammation are the hallmarks of Alzheimer's disease pathophysiology. In addition, recent evidence has highlighted that microbes, whether commensal or pathogenic, also have the ability to interact with their host and to regulate its immune system, therefore participating in the exchanges that lead to peripheral inflammation and neuropathology. Because of this intimate relationship, bacteria, viruses, fungi, and protozoa have been implicated in the development of Alzheimer's disease. Here, we bring together current and most recent evidence of the role of microbes in Alzheimer's disease, raising burning questions that need to be addressed to guide therapeutic approaches and potential prophylactic strategies.
Collapse
Affiliation(s)
- Zoë A. P. Williams
- Department of Anatomy and NeuroscienceUniversity College CorkCorkIreland
- APC Microbiome IrelandUniversity College CorkCorkIreland
| | - Leonie Lang
- Norwich Medical School, Faculty of Medicine and Health SciencesUniversity of East AngliaNorwichUK
| | - Sarah Nicolas
- Department of Anatomy and NeuroscienceUniversity College CorkCorkIreland
- APC Microbiome IrelandUniversity College CorkCorkIreland
| | - Gerard Clarke
- APC Microbiome IrelandUniversity College CorkCorkIreland
- Department of Psychiatry and Neurobehavioural ScienceUniversity College CorkCorkIreland
| | - John Cryan
- Department of Anatomy and NeuroscienceUniversity College CorkCorkIreland
- APC Microbiome IrelandUniversity College CorkCorkIreland
| | - David Vauzour
- Norwich Medical School, Faculty of Medicine and Health SciencesUniversity of East AngliaNorwichUK
| | - Yvonne M. Nolan
- Department of Anatomy and NeuroscienceUniversity College CorkCorkIreland
- APC Microbiome IrelandUniversity College CorkCorkIreland
| |
Collapse
|
49
|
Abstract
Although there is little direct evidence supporting that stress affects cancer incidence, it does influence the evolution, dissemination and therapeutic outcomes of neoplasia, as shown in human epidemiological analyses and mouse models. The experience of and response to physiological and psychological stressors can trigger neurological and endocrine alterations, which subsequently influence malignant (stem) cells, stromal cells and immune cells in the tumour microenvironment, as well as systemic factors in the tumour macroenvironment. Importantly, stress-induced neuroendocrine changes that can regulate immune responses have been gradually uncovered. Numerous stress-associated immunomodulatory molecules (SAIMs) can reshape natural or therapy-induced antitumour responses by engaging their corresponding receptors on immune cells. Moreover, stress can cause systemic or local metabolic reprogramming and change the composition of the gastrointestinal microbiota which can indirectly modulate antitumour immunity. Here, we explore the complex circuitries that link stress to perturbations in the cancer-immune dialogue and their implications for therapeutic approaches to cancer.
Collapse
Affiliation(s)
- Yuting Ma
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, China.
| | - Guido Kroemer
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, China
- Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
50
|
Deng W, Yi P, Xiong Y, Ying J, Lin Y, Dong Y, Wei G, Wang X, Hua F. Gut Metabolites Acting on the Gut-Brain Axis: Regulating the Functional State of Microglia. Aging Dis 2024; 15:480-502. [PMID: 37548933 PMCID: PMC10917527 DOI: 10.14336/ad.2023.0727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/27/2023] [Indexed: 08/08/2023] Open
Abstract
The gut-brain axis is a communication channel that mediates a complex interplay of intestinal flora with the neural, endocrine, and immune systems, linking gut and brain functions. Gut metabolites, a group of small molecules produced or consumed by biochemical processes in the gut, are involved in central nervous system regulation via the highly interconnected gut-brain axis affecting microglia indirectly by influencing the structure of the gut-brain axis or directly affecting microglia function and activity. Accordingly, pathological changes in the central nervous system are connected with changes in intestinal metabolite levels as well as altered microglia function and activity, which may contribute to the pathological process of each neuroinflammatory condition. Here, we discuss the mechanisms by which gut metabolites, for instance, the bile acids, short-chain fatty acids, and tryptophan metabolites, regulate the structure of each component of the gut-brain axis, and explore the important roles of gut metabolites in the central nervous system from the perspective of microglia. At the same time, we highlight the roles of gut metabolites affecting microglia in the pathogenesis of neurodegenerative diseases and neurodevelopmental disorders. Understanding the relationship between microglia, gut microbiota, neuroinflammation, and neurodevelopmental disorders will help us identify new strategies for treating neuropsychiatric disorders.
Collapse
Affiliation(s)
- Wenze Deng
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| | - Pengcheng Yi
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| | - Yanhong Xiong
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| | - Jun Ying
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| | - Yue Lin
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| | - Yao Dong
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| | - Gen Wei
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| | - Xifeng Wang
- Department of Anesthesiology, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Fuzhou Hua
- Department of Anesthesiology, the Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
- Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang City, Jiangxi, China.
| |
Collapse
|