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Liao W, Wei J, Liu C, Luo H, Ruan Y, Mai Y, Yu Q, Cao Z, Xu J, Zheng D, Sheng Z, Zhou X, Liu J. Magnesium-L-threonate treats Alzheimer's disease by modulating the microbiota-gut-brain axis. Neural Regen Res 2024; 19:2281-2289. [PMID: 38488562 PMCID: PMC11034594 DOI: 10.4103/1673-5374.391310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/07/2023] [Accepted: 11/06/2023] [Indexed: 04/24/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202410000-00029/figure1/v/2024-02-06T055622Z/r/image-tiff Disturbances in the microbiota-gut-brain axis may contribute to the development of Alzheimer's disease. Magnesium-L-threonate has recently been found to have protective effects on learning and memory in aged and Alzheimer's disease model mice. However, the effects of magnesium-L-threonate on the gut microbiota in Alzheimer's disease remain unknown. Previously, we reported that magnesium-L-threonate treatment improved cognition and reduced oxidative stress and inflammation in a double-transgenic line of Alzheimer's disease model mice expressing the amyloid-β precursor protein and mutant human presenilin 1 (APP/PS1). Here, we performed 16S rRNA amplicon sequencing and liquid chromatography-mass spectrometry to analyze changes in the microbiome and serum metabolome following magnesium-L-threonate exposure in a similar mouse model. Magnesium-L-threonate modulated the abundance of three genera in the gut microbiota, decreasing Allobaculum and increasing Bifidobacterium and Turicibacter. We also found that differential metabolites in the magnesium-L-threonate-regulated serum were enriched in various pathways associated with neurodegenerative diseases. The western blotting detection on intestinal tight junction proteins (zona occludens 1, occludin, and claudin-5) showed that magnesium-L-threonate repaired the intestinal barrier dysfunction of APP/PS1 mice. These findings suggest that magnesium-L-threonate may reduce the clinical manifestations of Alzheimer's disease through the microbiota-gut-brain axis in model mice, providing an experimental basis for the clinical treatment of Alzheimer's disease.
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Affiliation(s)
- Wang Liao
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Jiana Wei
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangdong, Guangdong Province, China
| | - Chongxu Liu
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Haoyu Luo
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Yuting Ruan
- Department of Rehabilitation, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Yingren Mai
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Qun Yu
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Zhiyu Cao
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jiaxin Xu
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Dong Zheng
- Department of Neurology, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Zonghai Sheng
- Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China
| | - Xianju Zhou
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangdong, Guangdong Province, China
| | - Jun Liu
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
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Gheorghe CE, Leigh SJ, Tofani GSS, Bastiaanssen TFS, Lyte JM, Gardellin E, Govindan A, Strain C, Martinez-Herrero S, Goodson MS, Kelley-Loughnane N, Cryan JF, Clarke G. The microbiota drives diurnal rhythms in tryptophan metabolism in the stressed gut. Cell Rep 2024; 43:114079. [PMID: 38613781 DOI: 10.1016/j.celrep.2024.114079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/09/2024] [Accepted: 03/22/2024] [Indexed: 04/15/2024] Open
Abstract
Chronic stress disrupts microbiota-gut-brain axis function and is associated with altered tryptophan metabolism, impaired gut barrier function, and disrupted diurnal rhythms. However, little is known about the effects of acute stress on the gut and how it is influenced by diurnal physiology. Here, we used germ-free and antibiotic-depleted mice to understand how microbiota-dependent oscillations in tryptophan metabolism would alter gut barrier function at baseline and in response to an acute stressor. Cecal metabolomics identified tryptophan metabolism as most responsive to a 15-min acute stressor, while shotgun metagenomics revealed that most bacterial species exhibiting rhythmicity metabolize tryptophan. Our findings highlight that the gastrointestinal response to acute stress is dependent on the time of day and the microbiome, with a signature of stress-induced functional alterations in the ileum and altered tryptophan metabolism in the colon.
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Affiliation(s)
- Cassandra E Gheorghe
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Sarah-Jane Leigh
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Gabriel S S Tofani
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Thomaz F S Bastiaanssen
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Joshua M Lyte
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Elisa Gardellin
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland
| | - Ashokkumar Govindan
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Teagasc Moorepark Food Research Centre, Fermoy Co, P61 C996 Cork, Ireland
| | - Conall Strain
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Teagasc Moorepark Food Research Centre, Fermoy Co, P61 C996 Cork, Ireland
| | - Sonia Martinez-Herrero
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Michael S Goodson
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45324, USA
| | - Nancy Kelley-Loughnane
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45324, USA
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, T12 CY82 Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, T12 CY82 Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, T12 CY82 Cork, Ireland.
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Jing Y, Wang Q, Bai F, Li Z, Li Y, Liu W, Yan Y, Zhang S, Gao C, Yu Y. Role of microbiota-gut-brain axis in natural aging-related alterations in behavior. Front Neurosci 2024; 18:1362239. [PMID: 38699678 PMCID: PMC11063250 DOI: 10.3389/fnins.2024.1362239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/03/2024] [Indexed: 05/05/2024] Open
Abstract
Introduction Aging is a complex, time-dependent biological process that involves a decline of overall function. Over the past decade, the field of intestinal microbiota associated with aging has received considerable attention. However, there is limited information surrounding microbiota-gut-brain axis (MGBA) to further reveal the mechanism of aging. Methods In this study, locomotory function and sensory function were evaluated through a series of behavioral tests.Metabolic profiling were determined by using indirect calorimetry.16s rRNA sequence and targeted metabolomics analyses were performed to investigate alterations in the gut microbiota and fecal short-chain fatty acids (SCFAs). The serum cytokines were detected by a multiplex cytokine assay.The expression of proinflammatory factors were detected by western blotting. Results Decreased locomotor activity, decreased pain sensitivity, and reduced respiratory metabolic profiling were observed in aged mice. High-throughput sequencing revealed that the levels of genus Lactobacillus and Dubosiella were reduced, and the levels of genus Alistipes and Bacteroides were increased in aged mice. Certain bacterial genus were directly associated with the decline of physiological behaviors in aged mice. Furthermore, the amount of fecal SCFAs in aged mice was decreased, accompanied by an upregulation in the circulating pro-inflammatory cytokines and increased expression of inflammatory factors in the brain. Discussion Aging-induced microbial dysbiosis was closely related with the overall decline in behavior, which may attribute to the changes in metabolic products, e.g., SCFAs, caused by an alteration in the gut microbiota, leading to inflammaging and contributing to neurological deficits. Investigating the MGBA might provide a novel viewpoint to exploring the pathogenesis of aging and expanding appropriate therapeutic targets.
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Affiliation(s)
- Yingli Jing
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Qiuying Wang
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Fan Bai
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Zihan Li
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Yan Li
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Weijin Liu
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Yitong Yan
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Shuangyue Zhang
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Chen Gao
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Yan Yu
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing Key Laboratory of Neural Injury and Rehabilitation, and School of Rehabilitation Medicine, Capital Medical University, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
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Hassouna R, Van Oudenhove L, Le Nevé B, Barwich AS. Editorial: The organs of sensibility: multimodal sensing within the microbiota-gut-brain axis and how it drives physiology, behavior and perception. Front Neurosci 2024; 18:1380039. [PMID: 38686332 PMCID: PMC11057229 DOI: 10.3389/fnins.2024.1380039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 05/02/2024] Open
Affiliation(s)
- Rim Hassouna
- Danone Nutricia Research, Danone Global Research & Innovation Center, Gif-sur-Yvette, France
| | - Lukas Van Oudenhove
- Translational Research Center for Gastrointestinal Disorders, Katholieke Universiteit Leuven, Leuven, Belgium
- Laboratory for Brain-Gut Axis Studies, Translational Research Center for Gastrointestinal Disorders, Katholieke Universiteit Leuven, Leuven, Belgium
- Leuven Brain Institute, Katholieke Universiteit Leuven, Leuven, Belgium
- Consultation-Liaison Psychiatry, University Psychiatric Centre Katholieke Universiteit Leuven Campus Gasthuisberg, Leuven, Belgium
- Cognitive and Affective Neuroscience Laboratory, Department of Psychological and Brain Sciences, Dartmouth College, Hanover, NH, United States
| | - Boris Le Nevé
- Danone Nutricia Research, Danone Global Research & Innovation Center, Gif-sur-Yvette, France
| | - Ann-Sophie Barwich
- Cognitive Science Program, Indiana University, Bloomington, IN, United States
- Department of History and Philosophy of Science and Medicine, Indiana University, Bloomington, IN, United States
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Rook GAW. Evolution and the critical role of the microbiota in the reduced mental and physical health associated with low socioeconomic status (SES). Neurosci Biobehav Rev 2024; 161:105653. [PMID: 38582194 DOI: 10.1016/j.neubiorev.2024.105653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
The evolution of the gut-microbiota-brain axis in animals reveals that microbial inputs influence metabolism, the regulation of inflammation and the development of organs, including the brain. Inflammatory, neurodegenerative and psychiatric disorders are more prevalent in people of low socioeconomic status (SES). Many aspects of low SES reduce exposure to the microbial inputs on which we are in a state of evolved dependence, whereas the lifestyle of wealthy citizens maintains these exposures. This partially explains the health deficit of low SES, so focussing on our evolutionary history and on environmental and lifestyle factors that distort microbial exposures might help to mitigate that deficit. But the human microbiota is complex and we have poor understanding of its functions at the microbial and mechanistic levels, and in the brain. Perhaps its composition is more flexible than the microbiota of animals that have restricted habitats and less diverse diets? These uncertainties are discussed in relation to the encouraging but frustrating results of attempts to treat psychiatric disorders by modulating the microbiota.
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Affiliation(s)
- Graham A W Rook
- Centre for Clinical Microbiology, Department of infection, UCL (University College London), London, UK.
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Li B, Yan Y, Zhang T, Xu H, Wu X, Yao G, Li X, Yan C, Wu LL. Quercetin reshapes gut microbiota homeostasis and modulates brain metabolic profile to regulate depression-like behaviors induced by CUMS in rats. Front Pharmacol 2024; 15:1362464. [PMID: 38595919 PMCID: PMC11002179 DOI: 10.3389/fphar.2024.1362464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 02/20/2024] [Indexed: 04/11/2024] Open
Abstract
Quercetin, an abundant flavonoid compound in plants, is considered a novel antidepressant; however, its mechanisms of action are poorly understood. This study aimed to investigate the therapeutic effects of quercetin on chronic unpredictable mild stress (CUMS)-induced depression-like behaviors in rats and explore the underlying mechanisms by combining untargeted metabolomics and 16S rRNA sequencing analysis of brain tissue metabolites and gut microbiota. Gut microbiota analysis revealed that at the phylum level, quercetin reduced Firmicutes and the Firmicutes/Bacteroidetes (F/B) ratio and enhanced Cyanobacteria. At the genus level, quercetin downregulated 6 and upregulated 14 bacterial species. Metabolomics analysis revealed that quercetin regulated multiple metabolic pathways, including glycolysis/gluconeogenesis, sphingolipid metabolism, the pentose phosphate pathway, and coenzyme A biosynthesis. This modulation leads to improvements in depression-like phenotypes, anxiety-like phenotypes, and cognitive function, highlighting the therapeutic potential of quercetin in treating depression.
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Affiliation(s)
| | | | | | | | | | | | | | - Can Yan
- Integrative Medicine Research Center, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Li-Li Wu
- Integrative Medicine Research Center, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
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Barba-Vila O, García-Mieres H, Ramos B. Probiotics in autism spectrum disorders: a systematic review of clinical studies and future directions. Nutr Rev 2024:nuae010. [PMID: 38497979 DOI: 10.1093/nutrit/nuae010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024] Open
Abstract
CONTEXT It is hypothesized that gut dysbiosis, a typical feature of patients with autism spectrum disorder (ASD), could be involved in the origin of this neurodevelopmental disorder. Therefore, the use of probiotics to restore gastrointestinal (GI) equilibrium might be a promising therapeutic strategy due to its capacity to balance the gut-brain axis and behavioral responses. OBJECTIVE To summarize current knowledge on the use of probiotics to treat core clinical ASD symptoms and concomitant GI signs, compare the design of published studies with those of ongoing trials, assess the near future of this field, and provide recommendations for improving novel studies. DATA SOURCES The literature search was conducted in February 2020 and updated in March 2021, using a broad range of bibliographic and clinical trial-specific databases. DATA EXTRACTION Data were extracted using a standardized form, and articles reporting on 28 clinical studies (already published or still ongoing) were included. The risk of bias in clinical studies was evaluated using the Cochrane Collaboration Risk of Bias Assessment tool for randomized trials and the Risk of Bias in Nonrandomized Studies-Interventions tool for nonrandomized trials. RESULTS The results suggest that probiotics improve ASD-like social deficits, GI symptoms, and gut microbiota profile. However, inconsistencies among studies and their methodological limitations make it difficult to draw any conclusions regarding the efficacy of probiotics in ASD. This review provides specific suggestions for future research to improve the quality of the studies. CONCLUSIONS Although ongoing studies have improved designs, the available knowledge does not permit solid conclusions to be made regarding the efficacy of probiotics in ameliorating the symptoms (psychiatric and/or GI) associated with ASD. Thus, more high-quality research and new approaches are needed to design effective probiotic strategies for ASD.
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Affiliation(s)
- Olga Barba-Vila
- Department de Bioquímica i Biología Molecular, Facultat de Medicina, Universitat Autònoma de Barcelona Bellaterra, Barcelona, Spain
| | - Helena García-Mieres
- Etiopathogenesis and Treatment of Severe Mental Disorders, Teaching, Research, and Innovation Unit, Institut de Recerca Sant Joan de Déu, Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat, Barcelona, Spain
- Centro Investigación Biomédica en Red Salud Mental, Madrid, Spain
- Health Services Research Unit, Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain
- CIBER Epidemiología y Salud Pública, Madrid, Spain
- Department of Medicine and Health Sciences, Pompeu Fabra University, Barcelona, Spain
- Faculty of Medicine, University of Vic-Central University of Catalonia, Vic, Spain
| | - Belén Ramos
- Department de Bioquímica i Biología Molecular, Facultat de Medicina, Universitat Autònoma de Barcelona Bellaterra, Barcelona, Spain
- Etiopathogenesis and Treatment of Severe Mental Disorders, Teaching, Research, and Innovation Unit, Institut de Recerca Sant Joan de Déu, Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat, Barcelona, Spain
- Centro Investigación Biomédica en Red Salud Mental, Madrid, Spain
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Sheng D, Li P, Xiao Z, Li X, Liu J, Xiao B, Liu W, Zhou L. Identification of bidirectional causal links between gut microbiota and narcolepsy type 1 using Mendelian randomization. Sleep 2024; 47:zsae004. [PMID: 38174762 DOI: 10.1093/sleep/zsae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/16/2023] [Indexed: 01/05/2024] Open
Abstract
STUDY OBJECTIVES Narcolepsy type 1 (NT1), characterized by cataplexy and orexin deficiency, is a rare and frequently debilitating neurological disorder. It has been noted to have connections with the gut microbiota, yet the exact causal relationships remain unclear. METHODS We conducted a comprehensive bidirectional Mendelian randomization (MR) study to rigorously investigate the causal links between the gut microbiota and NT1, utilizing genetic datasets from the MiBioGen consortium and FinnGen consortium, respectively. The inverse-variance weighted (IVW) method was employed to obtain the primary MR estimates, supplemented by several alternative methods as well as sensitivity analyses including Cochran's Q, MR-Egger, MR pleiotropy residual sum and outlier, leave-one-out, and genetic colocalization. RESULTS Our findings indicated that an increased relative abundance of five genera including Blautia (p = 4.47E-5), Collinsella (p = 0.036), Gordonibacter (p = 0.047), Hungatella (p = 0.015), and Lachnospiraceae UCG010 (p = 0.027) may be associated with a decreased risk of NT1. Conversely, an increased relative abundance of class Betaproteobacteria (p = 0.032), genus Alloprevotella (p = 0.009), and genus Ruminiclostridium6 (p = 0.029) may potentially heighten the risk of NT1. The onset of NT1 may lead to a decrease in the relative abundance of genus Eubacterium eligens group (p = 0.022), while a increase in the family Family XI (p = 0.009), genus Hungatella (p = 0.005), genus Prevotella (p = 0.013), and unknown genus id.2001 (p = 0.019). These findings remained robust under all sensitivity analyses. CONCLUSIONS Our results offer robust evidence for the bidirectional causal links between particular gut microbial taxa and NT1, underscoring the significance of the microbiota-gut-brain axis in the pathological process of NT1.
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Affiliation(s)
- Dandan Sheng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Peihong Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zheng Xiao
- Department of Pathology, First Hospital of Changsha, Changsha, Hunan, China
| | - Xinru Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jing Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bo Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Weiping Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Luo Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Wen X, Dong H, Zou W. The role of gut microorganisms and metabolites in intracerebral hemorrhagic stroke: a comprehensive review. Front Neurosci 2024; 18:1346184. [PMID: 38449739 PMCID: PMC10915040 DOI: 10.3389/fnins.2024.1346184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/09/2024] [Indexed: 03/08/2024] Open
Abstract
Intracerebral hemorrhagic stroke, characterized by acute hemorrhage in the brain, has a significant clinical prevalence and poses a substantial threat to individuals' well-being and productivity. Recent research has elucidated the role of gut microorganisms and their metabolites in influencing brain function through the microbiota-gut-brain axis (MGBA). This article provides a comprehensive review of the current literature on the common metabolites, short-chain fatty acids (SCFAs) and trimethylamine-N-oxide (TMAO), produced by gut microbiota. These metabolites have demonstrated the potential to traverse the blood-brain barrier (BBB) and directly impact brain tissue. Additionally, these compounds have the potential to modulate the parasympathetic nervous system, thereby facilitating the release of pertinent substances, impeding the buildup of inflammatory agents within the brain, and manifesting anti-inflammatory properties. Furthermore, this scholarly analysis delves into the existing dearth of investigations concerning the influence of gut microorganisms and their metabolites on cerebral functions, while also highlighting prospective avenues for future research.
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Affiliation(s)
- Xin Wen
- The First Clinical Medical College, Heilongjiang University Of Chinese Medicine, Harbin, China
| | - Hao Dong
- The First Clinical Medical College, Heilongjiang University Of Chinese Medicine, Harbin, China
| | - Wei Zou
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
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桂 建, 孙 晓, 温 舒, 刘 欣, 覃 冰, 桑 明. [Resveratrol protects dopaminergic neurons in a mouse model of Parkinson's disease by regulating the gut-brain axis via inhibiting the TLR4 signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:270-279. [PMID: 38501412 PMCID: PMC10954533 DOI: 10.12122/j.issn.1673-4254.2024.02.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Indexed: 03/20/2024]
Abstract
OBJECTIVE To investigate the protective effect of resveratrol on intestinal barrier in 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP)-induced Parkinson's disease (PD) mouse models and its mechanism for regulating TLR4/MyD88/NF-κB signaling to protect dopaminergic neurons. METHODS Fifty-two C57BL/6J mice were randomized into control group (n= 12), MPTP group (n=14), MPTP + resveratrol (30 mg/kg) group (n=13), and MPTP + resveratrol (90 mg/kg) group (n=13), and mouse models were established by intraperitoneal MPTP (30 mg/kg) injection for 7 days in the latter 3 groups. Behavioral tests were conducted to evaluate the effect of resveratrol on motor symptoms of the mice. Western blotting was used to detect the expression of TH, α-syn, ZO-1, Claudin-1, TLR4, MyD88, and NF-κB in the brain tissues of the mice. Immunohistochemistry, immunofluorescence, ELISA and transmission electron microscopy were used to verify the effect of resveratrol for suppressing inflammation and protecting the intestinal barrier. RESULTS Compared with those in the normal control group, the mice in MPTP group showed significant changes in motor function, number of dopaminergic neurons, neuroinflammation, levels of LPS and LBP, and expressions of tight junction proteins in the intestinal barrier. Resveratrol treatment significantly improved motor function of the PD mice (P < 0.01), increased the number of neurons and TH protein expression (P < 0.05), down-regulated the expressions of GFAP, Iba-1, and TLR4, lowered fecal and plasma levels of LPS and LBP (P < 0.05), restored the expression levels of ZO-1 and Claudin-1 (P < 0.01), and down-regulated the expressions of TLR4, MyD88, and NF-κB in the colon tissue (P < 0.05). The mice with resveratrol treatment at 30 mg/kg showed normal morphology of the tight junction complex with neatly and tightly arranged intestinal villi. CONCLUSION Resveratrol repairs the intestinal barrier by inhibiting TLR4/MyD88/NF-κB signaling pathway-mediated inflammatory response, thereby improving motor function and neuropathy in mouse models of MPTP-induced PD.
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Affiliation(s)
- 建军 桂
- 湖北医药学院基础医学院,湖北 十堰 442000School of Basic Medicine, Hubei University of Medicine, Shiyan 442000, China
- 湖北医药学院附属襄阳市第一人民医院转化医学中心,湖北 襄阳 441000Translational Medicine Center, Xiangyang First People's Hospital, Hubei University of Medicine, Xiangyang 441000, China
- 湖北省帕金森病临床医学研究中心,湖北 襄阳 441000Hubei Provincial Clinical Research Center for Parkinson's Disease, Xiangyang 441000, China
- 武当特色中药研究湖北省重点实验室,湖北 十堰 442000Hubei Provincial Key Laboratory of Wudang Traditional Chinese Medicine Research, Shiyan 442000, China
| | - 晓东 孙
- 湖北医药学院基础医学院,湖北 十堰 442000School of Basic Medicine, Hubei University of Medicine, Shiyan 442000, China
- 湖北医药学院附属襄阳市第一人民医院转化医学中心,湖北 襄阳 441000Translational Medicine Center, Xiangyang First People's Hospital, Hubei University of Medicine, Xiangyang 441000, China
- 湖北省帕金森病临床医学研究中心,湖北 襄阳 441000Hubei Provincial Clinical Research Center for Parkinson's Disease, Xiangyang 441000, China
- 武当特色中药研究湖北省重点实验室,湖北 十堰 442000Hubei Provincial Key Laboratory of Wudang Traditional Chinese Medicine Research, Shiyan 442000, China
| | - 舒 温
- 湖北医药学院附属襄阳市第一人民医院转化医学中心,湖北 襄阳 441000Translational Medicine Center, Xiangyang First People's Hospital, Hubei University of Medicine, Xiangyang 441000, China
| | - 欣 刘
- 湖北医药学院基础医学院,湖北 十堰 442000School of Basic Medicine, Hubei University of Medicine, Shiyan 442000, China
| | - 冰清 覃
- 湖北医药学院附属襄阳市第一人民医院转化医学中心,湖北 襄阳 441000Translational Medicine Center, Xiangyang First People's Hospital, Hubei University of Medicine, Xiangyang 441000, China
- 湖北省帕金森病临床医学研究中心,湖北 襄阳 441000Hubei Provincial Clinical Research Center for Parkinson's Disease, Xiangyang 441000, China
| | - 明 桑
- 湖北医药学院基础医学院,湖北 十堰 442000School of Basic Medicine, Hubei University of Medicine, Shiyan 442000, China
- 湖北医药学院附属襄阳市第一人民医院转化医学中心,湖北 襄阳 441000Translational Medicine Center, Xiangyang First People's Hospital, Hubei University of Medicine, Xiangyang 441000, China
- 湖北省帕金森病临床医学研究中心,湖北 襄阳 441000Hubei Provincial Clinical Research Center for Parkinson's Disease, Xiangyang 441000, China
- 武当特色中药研究湖北省重点实验室,湖北 十堰 442000Hubei Provincial Key Laboratory of Wudang Traditional Chinese Medicine Research, Shiyan 442000, China
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11
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Liu W, Liu L, Deng Z, Liu R, Ma T, Xin Y, Xie Y, Zhou Y, Tang Y. Associations between impulsivity and fecal microbiota in individuals abstaining from methamphetamine. CNS Neurosci Ther 2024; 30:e14580. [PMID: 38421126 PMCID: PMC10851322 DOI: 10.1111/cns.14580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 03/02/2024] Open
Abstract
INTRODUCTION Methamphetamine (MA) abuse is a major public problem, and impulsivity is both a prominent risk factor and a consequence of addiction. Hence, clarifying the biological mechanism of impulsivity may facilitate the understanding of addiction to MA. The microbiota-gut-brain axis was suggested to underlie a biological mechanism of impulsivity induced by MA. METHODS We therefore recruited 62 MA addicts and 50 healthy controls (HCs) to investigate the alterations in impulsivity and fecal microbiota and the associations between them in the MA group. Thereafter, 25 MA abusers who abstained from MA for less than 3 months were followed up for 2 months to investigate the relationship between impulsivity and microbiota as abstinence became longer. 16S rRNA sequencing was conducted for microbiota identification. RESULTS Elevated impulsivity and dysbiosis characterized by an increase in opportunistic pathogens and a decrease in probiotics were identified in MA abusers, and both the increased impulsivity and disrupted microbiota tended to recover after longer abstinence from MA. Impulsivity was related to microbiota, and the effect of MA abuse on impulsivity was mediated by microbiota. CONCLUSION Our findings potentially highlighted the importance of abstention and implicated the significant role of the microbiota-gut-brain axis in the interrelationship between microbiota and behaviors, as well as the potential of microbiota as a target for intervention of impulsivity.
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Affiliation(s)
- Wen Liu
- Department of PsychiatryThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Linzi Liu
- Department of PsychiatryThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Zijing Deng
- Department of PsychiatryThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Ruina Liu
- Department of PsychiatryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShanxiPR China
| | - Tao Ma
- Department of PsychiatryThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Yide Xin
- Department of PsychiatryThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Yu Xie
- Department of PsychiatryThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Yifang Zhou
- Department of PsychiatryThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Yanqing Tang
- Department of PsychiatryShengjing Hospital of China Medical UniversityShenyangLiaoningPR China
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12
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Wang D, Liu X, Shi S, Ren T, Wang W. Gut microbiota and metabolite variations in a migraine mouse model. Front Cell Infect Microbiol 2024; 13:1322059. [PMID: 38357211 PMCID: PMC10864585 DOI: 10.3389/fcimb.2023.1322059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 12/27/2023] [Indexed: 02/16/2024] Open
Abstract
Migraine is a prevalent clinical disorder characterized by recurrent unilateral throbbing headache episodes accompanied by symptoms such as nausea, vomiting, photophobia, and phonophobia. Despite its common occurrence, the diagnosis, pathophysiology, and treatment of migraine remain controversial. Extensive research has implicated the gut microbiota in various central nervous system disorders, including anxiety disorders, depression, and Parkinson's disease. Some studies have also suggested that migraine may stem from disruptions to neurohormones and metabolism. This study aimed to investigate the disparities in gut microbiota and metabolites between migraine mice model and normal mice to shed light on the underlying mechanisms and potential therapeutic approaches. Distinct differences in gut microbial composition were observed between the migraine mouse model and normal mouse, indicating a potential correlation between these variations and the pathogenesis of migraine. This study provides evidence of differences in gut microbiota composition and metabolites between a migraine mouse model and normal mice, which showed that Akkermansiaceae constituted the most abundant taxon in the sham injection mouse group, while Lachnospiraceae constituted the most prevalent group in the migraine mouse model group. The associations between the abundances of Akkermansia muciniphila and Lachnospiraceae bacteria and metabolites suggested their potential roles in the pathogenesis of migraine. The altered abundance of Lachnospiraceae observed in migraine-afflicted mice and its correlations with changes in metabolites suggest that it may affect the host's health. Thus, probiotic therapy emerges as a possible treatment for migraine. Moreover, significant disparities in gut metabolites were observed between the migraine mouse model and normal mice. These alterations encompass multiple metabolic pathways, suggesting that metabolic disturbances may also contribute to the development of migraines.
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Affiliation(s)
- Dan Wang
- Ear, Nose, and Throat (ENT) Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, China
- National Health Council (NHC) Key Laboratory of Hearing Medicine, Fudan University, Shanghai, sChina
| | - Xu Liu
- Ear, Nose, and Throat (ENT) Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, China
- National Health Council (NHC) Key Laboratory of Hearing Medicine, Fudan University, Shanghai, sChina
| | - Suming Shi
- Ear, Nose, and Throat (ENT) Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, China
- National Health Council (NHC) Key Laboratory of Hearing Medicine, Fudan University, Shanghai, sChina
| | - Tongli Ren
- Ear, Nose, and Throat (ENT) Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, China
- National Health Council (NHC) Key Laboratory of Hearing Medicine, Fudan University, Shanghai, sChina
| | - Wuqing Wang
- Ear, Nose, and Throat (ENT) Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, China
- National Health Council (NHC) Key Laboratory of Hearing Medicine, Fudan University, Shanghai, sChina
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13
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Elfers K, Watanangura A, Hoffmann P, Suchodolski JS, Khattab MR, Pilla R, Meller S, Volk HA, Mazzuoli-Weber G. Fecal supernatants from dogs with idiopathic epilepsy activate enteric neurons. Front Neurosci 2024; 18:1281840. [PMID: 38356649 PMCID: PMC10864448 DOI: 10.3389/fnins.2024.1281840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 01/15/2024] [Indexed: 02/16/2024] Open
Abstract
Introduction Alterations in the composition and function of the gut microbiome have been reported in idiopathic epilepsy (IE), however, interactions of gut microbes with the enteric nervous system (ENS) in this context require further study. This pilot study examined how gastrointestinal microbiota (GIM), their metabolites, and nutrients contained in intestinal contents communicate with the ENS. Methods Fecal supernatants (FS) from healthy dogs and dogs with IE, including drug-naïve, phenobarbital (PB) responsive, and PB non-responsive dogs, were applied to cultured myenteric neurons to test their activation using voltage-sensitive dye neuroimaging. Additionally, the concentrations of short-chain fatty acids (SCFAs) in the FS were quantified. Results Our findings indicate that FS from all examined groups elicited neuronal activation. Notably, FS from PB non-responsive dogs with IE induced action potential discharge in a higher proportion of enteric neurons compared to healthy controls, which exhibited the lowest burst frequency overall. Furthermore, the highest burst frequency in enteric neurons was observed upon exposure to FS from drug-naïve dogs with IE. This frequency was significantly higher compared to that observed in PB non-responsive dogs with IE and showed a tendency to surpass that of healthy controls. Discussion Although observed disparities in SCFA concentrations across the various FS samples might be associated with the induced neuronal activity, a direct correlation remains elusive at this point. The obtained results hint at an involvement of the ENS in canine IE and set the basis for future studies.
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Affiliation(s)
- Kristin Elfers
- Institute for Physiology and Cell Biology, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
| | - Antja Watanangura
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
- Center for Systems Neuroscience (ZSN), Hannover, Germany
- Veterinary Research and Academic Service, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, Thailand
| | - Pascal Hoffmann
- Institute for Physiology and Cell Biology, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
| | - Jan S. Suchodolski
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, United States
| | - Mohammad R. Khattab
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, United States
| | - Rachel Pilla
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, United States
| | - Sebastian Meller
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
| | - Holger A. Volk
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
- Center for Systems Neuroscience (ZSN), Hannover, Germany
| | - Gemma Mazzuoli-Weber
- Institute for Physiology and Cell Biology, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
- Center for Systems Neuroscience (ZSN), Hannover, Germany
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Zhong D, Jin K, Wang R, Chen B, Zhang J, Ren C, Chen X, Lu J, Zhou M. Microalgae-Based Hydrogel for Inflammatory Bowel Disease and Its Associated Anxiety and Depression. Adv Mater 2024:e2312275. [PMID: 38277492 DOI: 10.1002/adma.202312275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/19/2024] [Indexed: 01/28/2024]
Abstract
Patients diagnosed with inflammatory bowel disease (IBD) exhibit a notable prevalence of psychiatric disorders, such as anxiety and depression. Nevertheless, the etiology of psychiatric disorders associated with IBD remains uncertain, and an efficacious treatment approach has yet to be established. Herein, an oral hydrogel strategy (SP@Rh-gel) is proposed for co-delivery of Spirulina platensis and rhein to treat IBD and IBD-associated anxiety and depression by modulating the microbiota-gut-brain axis. SP@Rh-gel improves the solubility, release characteristics and intestinal retention capacity of the drug, leading to a significant improvement in the oral therapeutic efficacy. Oral administration of SP@Rh-gel can reduce intestinal inflammation and rebalance the disrupted intestinal microbial community. Furthermore, SP@Rh-gel maintains intestinal barrier integrity and reduces the release of pro-inflammatory factors and their entry into the hippocampus through the blood-brain barrier, thereby inhibiting neuroinflammation and maintaining neuroplasticity. SP@Rh-gel significantly alleviates the colitis symptoms, as well as anxiety- and depression-like behaviors, in a chronic colitis mouse model. This study demonstrates the significant involvement of the microbiota-gut-brain axis in the development of IBD with psychiatric disorders and proposes a safe, simple, and highly efficient therapeutic approach for managing IBD and comorbid psychiatric disorders.
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Affiliation(s)
- Danni Zhong
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, P. R. China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310029, P. R. China
| | - Kangyu Jin
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, P. R. China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310029, P. R. China
| | - Ruoxi Wang
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, P. R. China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310029, P. R. China
| | - Bing Chen
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, P. R. China
| | - Jinghui Zhang
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, P. R. China
| | - Chaojie Ren
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, P. R. China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore, 119074, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Institute of Molecular and Cell Biology, Agency for Science Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Jing Lu
- Department of Psychiatry, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, P. R. China
- Zhejiang Key Laboratory of Precision Psychiatry, Hangzhou, 310003, P. R. China
| | - Min Zhou
- Eye Center, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, P. R. China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310029, P. R. China
- Zhejiang University-University of Edinburgh Institute (ZJU-UoE Institute), Zhejiang University, Haining, 314400, P. R. China
- National Key Laboratory of Biobased Transportation Fuel Technology, Zhejiang University, Hangzhou, 310027, P. R. China
- Zhejiang University-Erdos Etuoke Joint Research Center, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310029, P. R. China
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Zhang S, Li M, Chang L, Mao X, Jiang Y, Shen X, Niu K, Lu X, Zhang R, Song Y, Ma K, Li H, Wei C, Hou Y, Wu Y. Bazi Bushen capsule improves the deterioration of the intestinal barrier function by inhibiting NLRP3 inflammasome-mediated pyroptosis through microbiota-gut-brain axis. Front Microbiol 2024; 14:1320202. [PMID: 38260869 PMCID: PMC10801200 DOI: 10.3389/fmicb.2023.1320202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Purpose The senescence-accelerated prone mouse 8 (SAMP8) is a widely used model for accelerating aging, especially in central aging. Mounting evidence indicates that the microbiota-gut-brain axis may be involved in the pathogenesis and progression of central aging-related diseases. This study aims to investigate whether Bazi Bushen capsule (BZBS) attenuates the deterioration of the intestinal function in the central aging animal model. Methods In our study, the SAMP8 mice were randomly divided into the model group, the BZ-low group (0.5 g/kg/d BZBS), the BZ-high group (1 g/kg/d BZBS) and the RAPA group (2 mg/kg/d rapamycin). Age-matched SAMR1 mice were used as the control group. Next, cognitive function was detected through Nissl staining and two-photon microscopy. The gut microbiota composition of fecal samples was analyzed by 16S rRNA gene sequencing. The Ileum tissue morphology was observed by hematoxylin and eosin staining, and the intestinal barrier function was observed by immunofluorescence. The expression of senescence-associated secretory phenotype (SASP) factors, including P53, TNF-α, NF-κB, IL-4, IL-6, and IL-10 was measured by real-time quantitative PCR. Macrophage infiltration and the proliferation and differentiation of intestinal cells were assessed by immunohistochemistry. We also detected the inflammasome and pyroptosis levels in ileum tissue by western blotting. Results BZBS improved the cognitive function and neuronal density of SAMP8 mice. BZBS also restored the intestinal villus structure and barrier function, which were damaged in SAMP8 mice. BZBS reduced the expression of SASP factors and the infiltration of macrophages in the ileum tissues, indicating a lower level of inflammation. BZBS enhanced the proliferation and differentiation of intestinal cells, which are essential for maintaining intestinal homeostasis. BZBS modulated the gut microbiota composition, by which BZBS inhibited the activation of inflammasomes and pyroptosis in the intestine. Conclusion BZBS could restore the dysbiosis of the gut microbiota and prevent the deterioration of intestinal barrier function by inhibiting NLRP3 inflammasome-mediated pyroptosis. These results suggested that BZBS attenuated the cognitive aging of SAMP8 mice, at least partially, by targeting the microbiota-gut-brain axis.
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Affiliation(s)
- Shixiong Zhang
- College of Traditional Chinese Medicine, College of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
| | - Mengnan Li
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
| | - Liping Chang
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
| | - Xinjing Mao
- College of Traditional Chinese Medicine, College of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
| | - Yuning Jiang
- College of Traditional Chinese Medicine, College of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
| | - Xiaogang Shen
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
- High-level TCM Key Disciplines of National Administration of Traditional Chinese Medicine—Luobing Theory, Shijiazhuang, China
| | - Kunxu Niu
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
- High-level TCM Key Disciplines of National Administration of Traditional Chinese Medicine—Luobing Theory, Shijiazhuang, China
| | - Xuan Lu
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
- High-level TCM Key Disciplines of National Administration of Traditional Chinese Medicine—Luobing Theory, Shijiazhuang, China
| | - Runtao Zhang
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
- High-level TCM Key Disciplines of National Administration of Traditional Chinese Medicine—Luobing Theory, Shijiazhuang, China
| | - Yahui Song
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
- High-level TCM Key Disciplines of National Administration of Traditional Chinese Medicine—Luobing Theory, Shijiazhuang, China
| | - Kun Ma
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
- High-level TCM Key Disciplines of National Administration of Traditional Chinese Medicine—Luobing Theory, Shijiazhuang, China
| | - Hongrong Li
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
| | - Cong Wei
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
- Key Laboratory of State Administration of TCM (Cardio-Cerebral Vessel Collateral Disease), Shijiazhuang, China
| | - Yunlong Hou
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
| | - Yiling Wu
- College of Traditional Chinese Medicine, College of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, China
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16
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Connell E, Blokker B, Kellingray L, Le Gall G, Philo M, Pontifex MG, Narbad A, Müller M, Vauzour D. Refined diet consumption increases neuroinflammatory signalling through bile acid dysmetabolism. Nutr Neurosci 2024:1-14. [PMID: 38170169 DOI: 10.1080/1028415x.2023.2301165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Over recent decades, dietary patterns have changed significantly due to the increasing availability of convenient, ultra-processed refined foods. Refined foods are commonly depleted of key bioactive compounds, which have been associated with several deleterious health conditions. As the gut microbiome can influence the brain through a bidirectional communication system known as the 'microbiota-gut-brain axis', the consumption of refined foods has the potential to affect cognitive health. In this study, multi-omics approaches were employed to assess the effect of a refined diet on the microbiota-gut-brain axis, with a particular focus on bile acid metabolism. Mice maintained on a refined low-fat diet (rLFD), consisting of high sucrose, processed carbohydrates and low fibre content, for eight weeks displayed significant gut microbial dysbiosis, as indicated by diminished alpha diversity metrics (p < 0.05) and altered beta diversity (p < 0.05) when compared to mice receiving a chow diet. Changes in gut microbiota composition paralleled modulation of the metabolome, including a significant reduction in short-chain fatty acids (acetate, propionate and n-butyrate; p < 0.001) and alterations in bile acid concentrations. Interestingly, the rLFD led to dysregulated bile acid concentrations across both the colon (p < 0.05) and the brain (p < 0.05) which coincided with altered neuroinflammatory gene expression. In particular, the concentration of TCA, TDCA and T-α-MCA was inversely correlated with the expression of NF-κB1, a key transcription factor in neuroinflammation. Overall, our results suggest a novel link between a refined low-fat diet and detrimental neuronal processes, likely in part through modulation of the microbiota-gut-brain axis and bile acid dysmetabolism.
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Affiliation(s)
- Emily Connell
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Britt Blokker
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Lee Kellingray
- Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | | | - Mark Philo
- Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | | | - Arjan Narbad
- Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Michael Müller
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - David Vauzour
- Norwich Medical School, University of East Anglia, Norwich, UK
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Ritz NL, Brocka M, Butler MI, Cowan CSM, Barrera-Bugueño C, Turkington CJR, Draper LA, Bastiaanssen TFS, Turpin V, Morales L, Campos D, Gheorghe CE, Ratsika A, Sharma V, Golubeva AV, Aburto MR, Shkoporov AN, Moloney GM, Hill C, Clarke G, Slattery DA, Dinan TG, Cryan JF. Social anxiety disorder-associated gut microbiota increases social fear. Proc Natl Acad Sci U S A 2024; 121:e2308706120. [PMID: 38147649 PMCID: PMC10769841 DOI: 10.1073/pnas.2308706120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 10/05/2023] [Indexed: 12/28/2023] Open
Abstract
Social anxiety disorder (SAD) is a crippling psychiatric disorder characterized by intense fear or anxiety in social situations and their avoidance. However, the underlying biology of SAD is unclear and better treatments are needed. Recently, the gut microbiota has emerged as a key regulator of both brain and behaviour, especially those related to social function. Moreover, increasing data supports a role for immune function and oxytocin signalling in social responses. To investigate whether the gut microbiota plays a causal role in modulating behaviours relevant to SAD, we transplanted the microbiota from SAD patients, which was identified by 16S rRNA sequencing to be of a differential composition compared to healthy controls, to mice. Although the mice that received the SAD microbiota had normal behaviours across a battery of tests designed to assess depression and general anxiety-like behaviours, they had a specific heightened sensitivity to social fear, a model of SAD. This distinct heightened social fear response was coupled with changes in central and peripheral immune function and oxytocin expression in the bed nucleus of the stria terminalis. This work demonstrates an interkingdom basis for social fear responses and posits the microbiome as a potential therapeutic target for SAD.
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Affiliation(s)
- Nathaniel L. Ritz
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Marta Brocka
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Mary I. Butler
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - Caitlin S. M. Cowan
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Camila Barrera-Bugueño
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Christopher J. R. Turkington
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Lorraine A. Draper
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Thomaz F. S. Bastiaanssen
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Valentine Turpin
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Lorena Morales
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - David Campos
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Cassandra E. Gheorghe
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - Anna Ratsika
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Virat Sharma
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Anna V. Golubeva
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Maria R. Aburto
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Andrey N. Shkoporov
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Gerard M. Moloney
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Colin Hill
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Gerard Clarke
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - David A. Slattery
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Frankfurt, Frankfurt60528, Germany
| | - Timothy G. Dinan
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - John F. Cryan
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
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18
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Koukoulis TF, Beauchamp LC, Kaparakis-Liaskos M, McQuade RM, Purnianto A, Finkelstein DI, Barnham KJ, Vella LJ. Do Bacterial Outer Membrane Vesicles Contribute to Chronic Inflammation in Parkinson's Disease? J Parkinsons Dis 2024; 14:227-244. [PMID: 38427502 DOI: 10.3233/jpd-230315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Parkinson's disease (PD) is an increasingly common neurodegenerative disease. It has been suggested that the etiology of idiopathic PD is complex and multifactorial involving environmental contributions, such as viral or bacterial infections and microbial dysbiosis, in genetically predisposed individuals. With advances in our understanding of the gut-brain axis, there is increasing evidence that the intestinal microbiota and the mammalian immune system functionally interact. Recent findings suggest that a shift in the gut microbiome to a pro-inflammatory phenotype may play a role in PD onset and progression. While there are links between gut bacteria, inflammation, and PD, the bacterial products involved and how they traverse the gut lumen and distribute systemically to trigger inflammation are ill-defined. Mechanisms emerging in other research fields point to a role for small, inherently stable vesicles released by Gram-negative bacteria, called outer membrane vesicles in disease pathogenesis. These vesicles facilitate communication between bacteria and the host and can shuttle bacterial toxins and virulence factors around the body to elicit an immune response in local and distant organs. In this perspective article, we hypothesize a role for bacterial outer membrane vesicles in PD pathogenesis. We present evidence suggesting that these outer membrane vesicles specifically from Gram-negative bacteria could potentially contribute to PD by traversing the gut lumen to trigger local, systemic, and neuroinflammation. This perspective aims to facilitate a discussion on outer membrane vesicles in PD and encourage research in the area, with the goal of developing strategies for the prevention and treatment of the disease.
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Affiliation(s)
- Tiana F Koukoulis
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Leah C Beauchamp
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Ann Romney Center for Neurologic Diseases, Brighamand Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Maria Kaparakis-Liaskos
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University, Melbourne, VIC, Australia
| | - Rachel M McQuade
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Medicine, Gut-Axis Injury and Repair Laboratory, Western Centre for Health Research and Education (WCHRE), The University of Melbourne, Sunshine Hospital, St Albans, VIC, Australia
- Australian Institute of Musculoskeletal Science (AIMSS), Western Centre for Health Research and Education (WCHRE), Sunshine Hospital, St Albans, VIC, Australia
| | - Adityas Purnianto
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - David I Finkelstein
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Kevin J Barnham
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Laura J Vella
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC, Australia
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19
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Jia X, Chen Q, Zhang Y, Asakawa T. Multidirectional associations between the gut microbiota and Parkinson's disease, updated information from the perspectives of humoral pathway, cellular immune pathway and neuronal pathway. Front Cell Infect Microbiol 2023; 13:1296713. [PMID: 38173790 PMCID: PMC10762314 DOI: 10.3389/fcimb.2023.1296713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024] Open
Abstract
The human gastrointestinal tract is inhabited by a diverse range of microorganisms, collectively known as the gut microbiota, which form a vast and complex ecosystem. It has been reported that the microbiota-gut-brain axis plays a crucial role in regulating host neuroprotective function. Studies have shown that patients with Parkinson's disease (PD) have dysbiosis of the gut microbiota, and experiments involving germ-free mice and fecal microbiota transplantation from PD patients have revealed the pathogenic role of the gut microbiota in PD. Interventions targeting the gut microbiota in PD, including the use of prebiotics, probiotics, and fecal microbiota transplantation, have also shown efficacy in treating PD. However, the causal relationship between the gut microbiota and Parkinson's disease remains intricate. This study reviewed the association between the microbiota-gut-brain axis and PD from the perspectives of humoral pathway, cellular immune pathway and neuronal pathway. We found that the interactions among gut microbiota and PD are very complex, which should be "multidirectional", rather than conventionally regarded "bidirectional". To realize application of the gut microbiota-related mechanisms in the clinical setting, we propose several problems which should be addressed in the future study.
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Affiliation(s)
- Xiaokang Jia
- School of Traditional Chinese Medicine, Hainan Medical University, Haikou, Hainan, China
| | - Qiliang Chen
- School of Basic Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yuanyuan Zhang
- Department of Acupuncture and Moxibustion, The Affiliated Traditional Chinese Medicine (TCM) Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Tetsuya Asakawa
- Institute of Neurology, National Clinical Research Center for Infectious Diseases, the Third People’s Hospital of Shenzhen, Shenzhen, Guangdong, China
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20
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Hochuli N, Kadyan S, Park G, Patoine C, Nagpal R. Pathways linking microbiota-gut-brain axis with neuroinflammatory mechanisms in Alzheimer's pathophysiology. Microbiome Res Rep 2023; 3:9. [PMID: 38455083 PMCID: PMC10917618 DOI: 10.20517/mrr.2023.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/03/2023] [Accepted: 11/30/2023] [Indexed: 03/09/2024]
Abstract
Disturbances in the local and peripheral immune systems are closely linked to a wide range of diseases. In the context of neurodegenerative disorders such as Alzheimer's disease (AD), inflammation plays a crucial role, often appearing as a common manifestation despite the variability in the occurrence of other pathophysiological hallmarks. Thus, combating neuroinflammation holds promise in treating complex pathophysiological diseases like AD. Growing evidence suggests the gut microbiome's crucial role in shaping the pathogenesis of AD by influencing inflammatory mediators. Gut dysbiosis can potentially activate neuroinflammatory pathways through bidirectional signaling of the gut-brain axis; however, the precise mechanisms of this complex interweaved network remain largely unclear. In these milieus, this review attempts to summarize the contributing role of gut microbiome-mediated neuroinflammatory signals in AD pathophysiology, while also pondering potential mechanisms through which commensal and pathogenic gut microbes affect neuroinflammation. While certain taxa such as Roseburia and Escherichia have been strongly correlated with AD, other clades such as Bacteroides and Faecalibacterium exhibit variations at the species and strain levels. In order to disentangle the inflammatory aspects of neurodegeneration attributed to the gut microbiome, it is imperative that future mechanistic studies investigate the species/strain-level dependency of commensals, opportunistic, and pathogenic gut microbes that consistently show correlations with AD patients across multiple associative studies.
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Affiliation(s)
| | | | | | | | - Ravinder Nagpal
- Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL 32306, USA
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21
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Cheng Y, Tan G, Zhu Q, Wang C, Ruan G, Ying S, Qie J, Hu X, Xiao Z, Xu F, Chen L, Chen M, Pei Y, Zhang H, Tian Y, Chen D, Liu X, Huang H, Wei Y. Efficacy of fecal microbiota transplantation in patients with Parkinson's disease: clinical trial results from a randomized, placebo-controlled design. Gut Microbes 2023; 15:2284247. [PMID: 38057970 PMCID: PMC10841011 DOI: 10.1080/19490976.2023.2284247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 11/13/2023] [Indexed: 12/08/2023] Open
Abstract
The occurrence and development of Parkinson's disease (PD) have been demonstrated to be related to gut dysbiosis, however, the impact of fecal microbiota transplantation (FMT) on microbiota engraftment in PD patients is uncertain. We performed a randomized, placebo-controlled trial at the Department of Neurology, Army Medical University Southwest Hospital in China (ChiCTR1900021405) from February 2019 to December 2019. Fifty-six participants with mild to moderate PD (Hoehn-Yahr stage 1-3) were randomly assigned to the FMT and placebo group, 27 patients in the FMT group and 27 in the placebo group completed the whole trial. During the follow-up, no severe adverse effect was observed, and patients with FMT treatment showed significant improvement in PD-related autonomic symptoms compared with the placebo group at the end of this trial (MDS-UPDRS total score, group×time effect, B = -6.56 [-12.98, -0.13], P < 0.05). Additionally, FMT improved gastrointestinal disorders and a marked increase in the complexity of the microecological system in patients. This study demonstrated that FMT through oral administration is clinically feasible and has the potential to improve the effectiveness of current medications in the clinical symptoms of PD patients.
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Affiliation(s)
- Yi Cheng
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Guohua Tan
- Department of Neurology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Qihui Zhu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital Gusu School, Nanjing Medical University, Jiangsu, China
| | - Chun Wang
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Guangcong Ruan
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Senhong Ying
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jinlong Qie
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital Gusu School, Nanjing Medical University, Jiangsu, China
| | - Xiaofei Hu
- Department of Radiology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Zhifeng Xiao
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Fenghua Xu
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Lu Chen
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Minjia Chen
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yang Pei
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital Gusu School, Nanjing Medical University, Jiangsu, China
| | - Hao Zhang
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yuting Tian
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Dongfeng Chen
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xingyin Liu
- Department of Pathogen Biology-Microbiology Division, Key Laboratory of Pathogen of Jiangsu Province; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital Gusu School, Nanjing Medical University, Jiangsu, China
| | - Heqing Huang
- Department of Neurology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Yanling Wei
- Department of Gastroenterology, Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
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22
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Li N, Tan S, Wang Y, Deng J, Wang N, Zhu S, Tian W, Xu J, Wang Q. Akkermansia muciniphila supplementation prevents cognitive impairment in sleep-deprived mice by modulating microglial engulfment of synapses. Gut Microbes 2023; 15:2252764. [PMID: 37671803 PMCID: PMC10484034 DOI: 10.1080/19490976.2023.2252764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/28/2023] [Accepted: 08/24/2023] [Indexed: 09/07/2023] Open
Abstract
The microbiome-gut-brain axis plays a crucial role in many neurological diseases, including mild cognitive impairment. Sleep deprivation (SD) induces cognitive decline accompanied by alterations in the gut microbiota. However, the role of gut microbiota alterations in SD-induced cognitive dysfunction and the underlying mechanisms remain unclear. Here, we found that dysbiosis of the gut microbiota following pretreatment with broad-spectrum antibiotics worsens SD-induced cognitive impairment in mice. Fecal microbiota transplantation from SD mice to healthy mice induced cognitive impairment. Additionally, the abundance of Akkermansia muciniphila (A. muciniphila) in the mouse gut microbiota was significantly reduced after 7 days of SD. A. muciniphila pretreatment alleviated cognitive dysfunction and prevented synaptic reduction in the hippocampus in SD mice. A. muciniphila pretreatment inhibited extensive microglial activation and synaptic engulfment in the hippocampus of SD mice. Metabolomics analysis revealed that A. muciniphila pretreatment increased the serum acetate and butanoic acid levels in SD mice. Finally, pretreatment with short-chain fatty acids (SCFAs) inhibited microglial synaptic engulfment and prevented neuronal synaptic loss in SD mice and primary microglia-neuron co-culture following LPS stimulation. Together, our findings illustrate that gut dysbiosis plays an essential role in SD-induced cognitive impairment by activating microglial engulfment at synapses. A. muciniphila supplementation may be a novel preventative strategy for SD-induced cognitive dysfunction, by increasing SCFAs production and maintaining microglial homeostasis.
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Affiliation(s)
- Na Li
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Shuwen Tan
- Department of Anesthesiology, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Yue Wang
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jiao Deng
- Department of Anesthesiology and Perioperative Medicine and Department of Critical Care Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Nan Wang
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Shan Zhu
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Wen Tian
- Department of Pharmacy, No. 95829 Military Hospital of PLA, Wuhan, Hubei, China
| | - Jing Xu
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Qiang Wang
- Department of Anesthesiology & Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
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23
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Lu Y, Zhang P, Xu F, Zheng Y, Zhao H. Advances in the study of IL-17 in neurological diseases and mental disorders. Front Neurol 2023; 14:1284304. [PMID: 38046578 PMCID: PMC10690603 DOI: 10.3389/fneur.2023.1284304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 10/23/2023] [Indexed: 12/05/2023] Open
Abstract
Interleukin-17 (IL-17), a cytokine characteristically secreted by T helper 17 (Th17) cells, has attracted increasing attention in recent years because of its importance in the pathogenesis of many autoimmune or chronic inflammatory diseases. Recent studies have shown that neurological diseases and mental disorders are closely related to immune function, and varying degrees of immune dysregulation may disrupt normal expression of immune molecules at critical stages of neural development. Starting from relevant mechanisms affecting immune regulation, this article reviews the research progress of IL-17 in a selected group of neurological diseases and mental disorders (autism spectrum disorder, Alzheimer's disease, epilepsy, and depression) from the perspective of neuroinflammation and the microbiota-gut-brain axis, summarizes the commonalities, and provides a prospective outlook of target application in disease treatment.
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Affiliation(s)
- Yu Lu
- Department of Pediatrics, Jinan Central Hospital, Shandong University, Jinan, China
| | - Piaopiao Zhang
- Department of Pediatrics, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Fenfen Xu
- Department of Pediatrics, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yuan Zheng
- Department of Pediatrics, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Hongyang Zhao
- Department of Pediatrics, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
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24
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Fan S, Guo W, Xiao D, Guan M, Liao T, Peng S, Feng A, Wang Z, Yin H, Li M, Chen J, Xiong W. Microbiota-gut-brain axis drives overeating disorders. Cell Metab 2023; 35:2011-2027.e7. [PMID: 37794596 DOI: 10.1016/j.cmet.2023.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/10/2023] [Accepted: 09/11/2023] [Indexed: 10/06/2023]
Abstract
Overeating disorders (ODs), usually stemming from dieting history and stress, remain a pervasive issue in contemporary society, with the pathological mechanisms largely unresolved. Here, we show that alterations in intestinal microbiota are responsible for the excessive intake of palatable foods in OD mice and patients with bulimia nervosa (BN). Stress combined with a history of dieting causes significant changes in the microbiota and the intestinal metabolism, which disinhibit the vagus nerve terminals in the gut and thereby lead to a subsequent hyperactivation of the gut-brain axis passing through the vagus, the solitary tract nucleus, and the paraventricular nucleus of the thalamus. The transplantation of a probiotic Faecalibacterium prausnitzii or dietary supplement of key metabolites restores the activity of the gut-to-brain pathway and thereby alleviates the OD symptoms. Thus, our study delineates how the microbiota-gut-brain axis mediates energy balance, unveils the underlying pathogenesis of the OD, and provides potential therapeutic strategies.
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Affiliation(s)
- Sijia Fan
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Weiwei Guo
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Dan Xiao
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Mengyuan Guan
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Tiepeng Liao
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China; Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing, Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei 230088, China
| | - Sufang Peng
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Airong Feng
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Ziyi Wang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Hao Yin
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Min Li
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei 230026, China.
| | - Jue Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
| | - Wei Xiong
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China; Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing, Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei 230088, China; Anhui Province Key Laboratory of Biomedical Aging Research, Hefei 230026, China.
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25
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Kandsperger S, Brunner R, Rupprecht R, Baghai TC. [Depressive Disorders in Adolescence: Current State of Studies Concerning the Microbiota-Gut-Brain Axis]. Z Kinder Jugendpsychiatr Psychother 2023; 51:419-428. [PMID: 36752092 DOI: 10.1024/1422-4917/a000917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Depressive Disorders in Adolescence: Current State of Studies Concerning the Microbiota-Gut-Brain Axis Abstract. Depressive disorders increase during adolescence and often lead to significant impairment in affected individuals - despite treatment. Current research efforts aim to further investigate the pathophysiology of depression, considering the influence of gut microbiota on the gut-brain axis. The present narrative review outlines the current state of studies of the microbiota-gut-brain axis in depressive disorders as well as the direct and indirect interactions in adolescence. Besides providing promising results from animal studies, studies on the microbiota-gut-brain axis in adults suffering from depressive disorders are growing steadily. In depressed adolescents, however, the study situation is still marginal, making a recommendation for the supplementation of probiotics and prebiotics in depressed children and adolescents impossible according to the current state of research. Against the background of a very limited number of studies involving adolescents with depressive disorders, the interactive role of the microbiota-gut-brain axis in adolescent development should receive special attention in future research projects.
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Affiliation(s)
- Stephanie Kandsperger
- Klinik und Poliklinik für Kinder- und Jugendpsychiatrie, Psychosomatik und Psychotherapie, Universität Regensburg, Regensburg, Deutschland
| | - Romuald Brunner
- Klinik und Poliklinik für Kinder- und Jugendpsychiatrie, Psychosomatik und Psychotherapie, Universität Regensburg, Regensburg, Deutschland
| | - Rainer Rupprecht
- Klinik und Poliklinik für Psychiatrie und Psychotherapie, Universität Regensburg, Regensburg, Deutschland
| | - Thomas C Baghai
- Klinik und Poliklinik für Psychiatrie und Psychotherapie, Universität Regensburg, Regensburg, Deutschland
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Kamal FD, Dagar M, Reza T, Karim Mandokhail A, Bakht D, Shahzad MW, Silloca-Cabana EO, Mohsin SN, Chilla SP, Bokhari SFH. Beyond Diet and Exercise: The Impact of Gut Microbiota on Control of Obesity. Cureus 2023; 15:e49339. [PMID: 38143595 PMCID: PMC10748854 DOI: 10.7759/cureus.49339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2023] [Indexed: 12/26/2023] Open
Abstract
Obesity, a widespread health concern characterized by the excessive accumulation of body fat, is a complex condition influenced by genetics, environment, and social determinants. Recent research has increasingly focused on the role of gut microbiota in obesity, highlighting its pivotal involvement in various metabolic processes. The gut microbiota, a diverse community of microorganisms residing in the gastrointestinal tract, interacts with the host in a myriad of ways, impacting energy metabolism, appetite regulation, inflammation, and the gut-brain axis. Dietary choices significantly shape the gut microbiota, with diets high in fat and carbohydrates promoting the growth of harmful bacteria while reducing beneficial microbes. Lifestyle factors, like physical activity and smoking, also influence gut microbiota composition. Antibiotics and medications can disrupt microbial diversity, potentially contributing to obesity. Early-life experiences, including maternal obesity during pregnancy, play a vital role in the developmental origins of obesity. Therapeutic interventions targeting the gut microbiota, including prebiotics, probiotics, fecal microbiota transplantation, bacterial consortium therapy, and precision nutrition, offer promising avenues for reshaping the gut microbiota and positively influencing weight regulation and metabolic health. Clinical applications of microbiota-based therapies are on the horizon, with potential implications for personalized treatments and condition-based interventions. Emerging technologies, such as next-generation sequencing and advanced bioinformatics, empower researchers to identify specific target species for microbiota-based therapeutics, opening new possibilities in healthcare. Despite the promising outlook, microbiota-based therapies face challenges related to microbial selection, safety, and regulatory issues. However, with ongoing research and advances in the field, these challenges can be addressed to unlock the full potential of microbiota-based interventions.
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Affiliation(s)
| | - Mehak Dagar
- Internal Medicine, Himalayan Institute of Medical Sciences, New Delhi, IND
| | - Taufiqa Reza
- Medicine, Avalon University School of Medicine, Youngstown, USA
| | | | - Danyal Bakht
- Medicine and Surgery, Mayo Hospital, Lahore, PAK
| | | | | | - Syed Naveed Mohsin
- Orthopedics, St. James's Hospital, Dublin, IRL
- General Surgery, Cavan General Hospital, Cavan, IRL
| | - Srikar P Chilla
- Medicine, CARE Hospitals, Hyderabad, IND
- Health Sciences, University of East London, London, GBR
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Zhang W, Ye Y, Song J, Sang T, Xia T, Xie L, Qiu X, Zeng Q, Luo X. Research Progress of Microbiota-Gut-Brain Axis in Parkinson's Disease. J Integr Neurosci 2023; 22:157. [PMID: 38176929 DOI: 10.31083/j.jin2206157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/19/2023] [Accepted: 07/03/2023] [Indexed: 01/06/2024] Open
Abstract
Parkinson's disease (PD) is a common neurodegenerative disorder characterized by misfolding of α-synuclein. Clinical manifestations include slowly developing resting tremor, muscle rigidity, bradykinesia and abnormal gait. The pathological mechanisms underlying PD are complex and yet to be fully elucidated. Clinical studies suggest that the onset of gastrointestinal symptoms may precede motor symptoms in PD patients. The microbiota-gut-brain axis plays a bidirectional communication role between the enteric nervous system and the central nervous system. This bidirectional communication between the brain and gut is influenced by the neural, immune and endocrine systems related to the gut microbiome. A growing body of evidence indicates a strong link between dysregulation of the gut microbiota and PD. In this review, we present recent progress in understanding the relationship between the microbiota-gut-brain axis and PD. We focus on the role of the gut microbiota, the unique changes observed in the microbiome of PD patients, and the impact of these changes on the progression of PD. Finally, we evaluate the role of current treatment strategies for PD, including probiotics, fecal microbial transplants, dietary modifications, and related drug therapies.
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Affiliation(s)
- Wei Zhang
- Department of Pharmacy, The People's Hospital of Kaizhou District, 405400 Chongqing, China
| | - Yalin Ye
- Department of Pharmacy, Chengdu Second People's Hospital, 610017 Chengdu, Sichuan, China
| | - Jiayang Song
- Department of Pharmacy, Cangxi People's Hospital, 628400 Nanchong, Sichuan, China
| | - Tian Sang
- Department of Pharmacy, The People's Hospital of Kaizhou District, 405400 Chongqing, China
| | - Tingting Xia
- Department of Pharmacy, The People's Hospital of Kaizhou District, 405400 Chongqing, China
| | - Linhong Xie
- Department of Pharmacy, The People's Hospital of Kaizhou District, 405400 Chongqing, China
| | - Xiaofei Qiu
- Department of Pharmacy, The People's Hospital of Kaizhou District, 405400 Chongqing, China
| | - Qijing Zeng
- Department of Pharmacy, The People's Hospital of Kaizhou District, 405400 Chongqing, China
| | - Xin Luo
- Department of Gastroenterology, The People's Hospital of Kaizhou District, 405400 Chongqing, China
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Manosso LM, Duarte LA, Martinello NS, Mathia GB, Réus GZ. Circadian Rhythms and Sleep Disorders Associated to Major Depressive Disorder: Pathophysiology and Therapeutic Opportunities. CNS Neurol Disord Drug Targets 2023:CNSNDDT-EPUB-135594. [PMID: 37885113 DOI: 10.2174/0118715273254093231020052002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 10/28/2023]
Abstract
Major depressive disorder (MDD) is a complex mood disorder. While much progress has been made in understanding the pathophysiology of MDD, no single mechanism can explain all facets of this disorder. Several studies show that disturbances in biological rhythms can lead to the development of MDD. Indeed, insomnia or hypersomnia are symptoms included in the MDD diagnostic criteria. Clinical studies and meta-analyses showed a strong relationship between MDD and sleep disorders. Sleep disorder and MDD are associated with activation in the hypothalamicpituitary-adrenal (HPA) axis and inflammation. The increase in inflammatory response can activate the kynurenine pathway, decrease serotonin synthesis, and affect other factors involved in the pathophysiology of neuropsychiatric conditions. Moreover, sleep disorders and MDD can change the gut microbiota and alter the microbiota-gut-brain axis. Thus, this review discusses the relationship between MDD, circadian rhythms, and sleep disorders, describing the potential pathophysiological mechanism shared in these conditions. In addition, therapeutic opportunities based on antiinflammatory, antioxidant, HPA axis regulatory, and synapse-modulating actions are raised. For the article search, we used the PubMed database. Both sleep disorders and changes in biological rhythms have a bidirectional relationship with MDD. Although some pathophysiological mechanisms, including inflammation, changes in the gut microbiota, and decreased neuroplasticity, may be involved in the relationship between sleep, circadian rhythms, and MDD, other mechanisms are not yet well understood. Therapeutic opportunities based on anti-inflammatory, antioxidant, HPA regulatory axis, and synapse modulating actions appear to be promising targets in preventing MDD, circadian rhythm disturbances, and sleep disorders.
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Affiliation(s)
- Luana M Manosso
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Luciano A Duarte
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Nicoly S Martinello
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Gisiane B Mathia
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Gislaine Z Réus
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
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Sheng C, Du W, Liang Y, Xu P, Ding Q, Chen X, Jia S, Wang X. An integrated neuroimaging-omics approach for the gut-brain communication pathways in Alzheimer's disease. Front Aging Neurosci 2023; 15:1211979. [PMID: 37869373 PMCID: PMC10587434 DOI: 10.3389/fnagi.2023.1211979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023] Open
Abstract
A key role of the gut microbiota in the pathogenesis of neurodegenerative diseases, such as Alzheimer's disease (AD), has been identified over the past decades. Increasing clinical and preclinical evidence implicates that there is bidirectional communication between the gut microbiota and the central nervous system (CNS), which is also known as the microbiota-gut-brain axis. Nevertheless, current knowledge on the interplay between gut microbiota and the brain remains largely unclear. One of the primary mediating factors by which the gut microbiota interacts with the host is peripheral metabolites, including blood or gut-derived metabolites. However, mechanistic knowledge about the effect of the microbiome and metabolome signaling on the brain is limited. Neuroimaging techniques, such as multi-modal magnetic resonance imaging (MRI), and fluorodeoxyglucose-positron emission tomography (FDG-PET), have the potential to directly elucidate brain structural and functional changes corresponding with alterations of the gut microbiota and peripheral metabolites in vivo. Employing a combination of gut microbiota, metabolome, and advanced neuroimaging techniques provides a future perspective in illustrating the microbiota-gut-brain pathway and further unveiling potential therapeutic targets for AD treatments.
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Affiliation(s)
- Can Sheng
- Department of Neurology, The Affiliated Hospital of Jining Medical University, Jining, China
| | - Wenying Du
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China
| | - Yuan Liang
- Department of Neurology, The Affiliated Hospital of Jining Medical University, Jining, China
| | - Peng Xu
- Department of Neurology, The Affiliated Hospital of Jining Medical University, Jining, China
| | - Qingqing Ding
- Department of Neurology, The Affiliated Hospital of Jining Medical University, Jining, China
| | - Xue Chen
- Department of Neurology, The Affiliated Hospital of Jining Medical University, Jining, China
| | - Shulei Jia
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Xiaoni Wang
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Wang R, Sun Y, Wang M, Li H, Liu S, Liu Z. Therapeutic effect of Eleutherococcus senticosus (Rupr. & Maxim.) Maxim. leaves on ischemic stroke via the microbiota-gut-brain axis. Phytother Res 2023; 37:4801-4818. [PMID: 37518502 DOI: 10.1002/ptr.7947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023]
Abstract
Eleutherococcus senticosus (Rupr. & Maxim.) Maxim. leaves (ESL) are widely used to treat ischemic stroke (IS); however, the specific mechanism remains unclear. The microbiota-gut-brain axis plays a critical role in IS and has become a potential therapeutic target. This study aimed to reveal and verify the therapeutic effect of ESL on IS through the microbiota-gut-brain axis. Ultra-high-performance liquid chromatography coupled with mass spectrometry-based untargeted/targeted metabolomics combined with 16S rRNA microbiota sequencing strategy were used to investigate the regulatory effect of ESL on the metabolism and intestinal microenvironment after IS. Lactobacillus reuteri and Clostridium butyricum were used to treat rats with IS to verify that elevated levels of probiotics are key factors in the therapeutic effect of ESL. The results showed that IS significantly altered the accumulation of 41 biomarkers, while ESL restored their concentrations back to normal. Moreover, ESL alleviated the dysbiosis of gut microbiota brought on by IS, by reducing the abundance of pathogens and increasing the abundance of probiotics (e.g., Lactobacillus reuteri and Clostridium butyricum); this could reduce post-stroke injury, thereby having a certain protective effect on IS. This study reveals that ESL plays an important role in treating IS through the microbiota-gut-brain axis, maintaining metabolic homeostasis in vivo.
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Affiliation(s)
- Rongjin Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Yuzhen Sun
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Meiyuan Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Hanlin Li
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Shu Liu
- National Center of Mass Spectrometry in Changchun & Jilin Provincial Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Zhongying Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
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Leigh SJ, Uhlig F, Wilmes L, Sanchez-Diaz P, Gheorghe CE, Goodson MS, Kelley-Loughnane N, Hyland NP, Cryan JF, Clarke G. The impact of acute and chronic stress on gastrointestinal physiology and function: a microbiota-gut-brain axis perspective. J Physiol 2023; 601:4491-4538. [PMID: 37756251 DOI: 10.1113/jp281951] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
The physiological consequences of stress often manifest in the gastrointestinal tract. Traumatic or chronic stress is associated with widespread maladaptive changes throughout the gut, although comparatively little is known about the effects of acute stress. Furthermore, these stress-induced changes in the gut may increase susceptibility to gastrointestinal disorders and infection, and impact critical features of the neural and behavioural consequences of the stress response by impairing gut-brain axis communication. Understanding the mechanisms behind changes in enteric nervous system circuitry, visceral sensitivity, gut barrier function, permeability, and the gut microbiota following stress is an important research objective with pathophysiological implications in both neurogastroenterology and psychiatry. Moreover, the gut microbiota has emerged as a key aspect of physiology sensitive to the effects of stress. In this review, we focus on different aspects of the gastrointestinal tract including gut barrier function as well as the immune, humoral and neuronal elements involved in gut-brain communication. Furthermore, we discuss the evidence for a role of stress in gastrointestinal disorders. Existing gaps in the current literature are highlighted, and possible avenues for future research with an integrated physiological perspective have been suggested. A more complete understanding of the spatial and temporal dynamics of the integrated host and microbial response to different kinds of stressors in the gastrointestinal tract will enable full exploitation of the diagnostic and therapeutic potential in the fast-evolving field of host-microbiome interactions.
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Affiliation(s)
- Sarah-Jane Leigh
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Friederike Uhlig
- APC Microbiome Ireland, Cork, Ireland
- Department of Physiology, University College Cork, Cork, Ireland
| | - Lars Wilmes
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Paula Sanchez-Diaz
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Cassandra E Gheorghe
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Michael S Goodson
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, USA
| | - Nancy Kelley-Loughnane
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, USA
| | - Niall P Hyland
- APC Microbiome Ireland, Cork, Ireland
- Department of Physiology, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
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32
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Liu L, Deng Z, Liu W, Liu R, Ma T, Zhou Y, Wang E, Tang Y. The gut microbiota as a potential biomarker for methamphetamine use disorder: evidence from two independent datasets. Front Cell Infect Microbiol 2023; 13:1257073. [PMID: 37790913 PMCID: PMC10543748 DOI: 10.3389/fcimb.2023.1257073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/29/2023] [Indexed: 10/05/2023] Open
Abstract
Background Methamphetamine use disorder (MUD) poses a considerable public health threat, and its identification remains challenging due to the subjective nature of the current diagnostic system that relies on self-reported symptoms. Recent studies have suggested that MUD patients may have gut dysbiosis and that gut microbes may be involved in the pathological process of MUD. We aimed to examine gut dysbiosis among MUD patients and generate a machine-learning model utilizing gut microbiota features to facilitate the identification of MUD patients. Method Fecal samples from 78 MUD patients and 50 sex- and age-matched healthy controls (HCs) were analyzed by 16S rDNA sequencing to identify gut microbial characteristics that could help differentiate MUD patients from HCs. Based on these microbial features, we developed a machine learning model to help identify MUD patients. We also used public data to verify the model; these data were downloaded from a published study conducted in Wuhan, China (with 16 MUD patients and 14 HCs). Furthermore, we explored the gut microbial features of MUD patients within the first three months of withdrawal to identify the withdrawal period of MUD patients based on microbial features. Results MUD patients exhibited significant gut dysbiosis, including decreased richness and evenness and changes in the abundance of certain microbes, such as Proteobacteria and Firmicutes. Based on the gut microbiota features of MUD patients, we developed a machine learning model that demonstrated exceptional performance with an AUROC of 0.906 for identifying MUD patients. Additionally, when tested using an external and cross-regional dataset, the model achieved an AUROC of 0.830. Moreover, MUD patients within the first three months of withdrawal exhibited specific gut microbiota features, such as the significant enrichment of Actinobacteria. The machine learning model had an AUROC of 0.930 for identifying the withdrawal period of MUD patients. Conclusion In conclusion, the gut microbiota is a promising biomarker for identifying MUD and thus represents a potential approach to improving the identification of MUD patients. Future longitudinal studies are needed to validate these findings.
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Affiliation(s)
- Linzi Liu
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zijing Deng
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Wen Liu
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ruina Liu
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Tao Ma
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yifang Zhou
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Enhui Wang
- Department of Psychiatry, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yanqing Tang
- Department of Psychiatry, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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Taylor VH, Kumar V. Can we manage gut microbiome imbalances in patients with bipolar disorder with pharmacotherapy? Expert Opin Pharmacother 2023; 24:1957-1961. [PMID: 38073530 DOI: 10.1080/14656566.2023.2288287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/22/2023] [Indexed: 01/06/2024]
Abstract
INTRODUCTION A novel new area of exploration in the treatment of bipolar disorder is the gut brain axis. Studies have shown significant differences between the gut microbiome in those with bipolar disorder and those without the illness, as well as documented microbiome changes associated with the effects of bipolar pharmacotherapy and targeted microbial interventions. Although we have evidence suggesting the bi-directional relationship between the gut microbiome and psychiatric disorders, we are still unable to utilize this understanding clinically. AREAS COVERED We need to better understand the factors that impact the microbiome in this illness and vice versa. EXPERT OPINION Additionally, changes in gut microbiome in bipolar disorder might be used for biomarker identification with a potential to help in diagnosis and monitoring of the condition. It is an important area for further research and may provide improved therapeutic outcomes.
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Affiliation(s)
- Valerie H Taylor
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | - Vivek Kumar
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
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Cuesta-Marti C, Uhlig F, Muguerza B, Hyland N, Clarke G, Schellekens H. Microbes, oxytocin and stress: Converging players regulating eating behavior. J Neuroendocrinol 2023; 35:e13243. [PMID: 36872624 DOI: 10.1111/jne.13243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/26/2023] [Accepted: 02/02/2023] [Indexed: 02/17/2023]
Abstract
Oxytocin is a peptide-hormone extensively studied for its multifaceted biological functions and has recently gained attention for its role in eating behavior, through its action as an anorexigenic neuropeptide. Moreover, the gut microbiota is involved in oxytocinergic signaling through the brain-gut axis, specifically in the regulation of social behavior. The gut microbiota is also implicated in appetite regulation and is postulated to play a role in central regulation of hedonic eating. In this review, we provide an overview on oxytocin and its individual links with the microbiome, the homeostatic and non-homeostatic regulation of eating behavior as well as social behavior and stress.
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Affiliation(s)
- Cristina Cuesta-Marti
- Department of Anatomy & Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
| | - Friederike Uhlig
- APC Microbiome Ireland, Cork, Ireland
- Department of Physiology, University College Cork, Ireland
| | - Begoña Muguerza
- Department of Anatomy & Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
- Universitat Rovira i Virgili, Department of Biochemistry & Biotechnology, Nutrigenomics Research Group, Tarragona, Spain
| | - Niall Hyland
- APC Microbiome Ireland, Cork, Ireland
- Department of Physiology, University College Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry & Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Harriët Schellekens
- Department of Anatomy & Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
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Hayer SS, Hwang S, Clayton JB. Antibiotic-induced gut dysbiosis and cognitive, emotional, and behavioral changes in rodents: a systematic review and meta-analysis. Front Neurosci 2023; 17:1237177. [PMID: 37719161 PMCID: PMC10504664 DOI: 10.3389/fnins.2023.1237177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023] Open
Abstract
There are previous epidemiological studies reporting associations between antibiotic use and psychiatric symptoms. Antibiotic-induced gut dysbiosis and alteration of microbiota-gut-brain axis communication has been proposed to play a role in this association. In this systematic review and meta-analysis, we reviewed published articles that have presented results on changes in cognition, emotion, and behavior in rodents (rats and mice) after antibiotic-induced gut dysbiosis. We searched three databases-PubMed, Web of Science, and SCOPUS to identify such articles using dedicated search strings and extracted data from 48 articles. Increase in anxiety and depression-like behavior was reported in 32.7 and 40.7 percent of the study-populations, respectively. Decrease in sociability, social novelty preference, recognition memory and spatial cognition was found in 18.1, 35.3, 26.1, and 62.5 percent of the study-populations, respectively. Only one bacterial taxon (increase in gut Proteobacteria) showed statistically significant association with behavioral changes (increase in anxiety). There were no consistent findings with statistical significance for the potential biomarkers [Brain-derived neurotrophic factor (BDNF) expression in the hippocampus, serum corticosterone and circulating IL-6 and IL-1β levels]. Results of the meta-analysis revealed a significant association between symptoms of negative valence system (including anxiety and depression) and cognitive system (decreased spatial cognition) with antibiotic intake (p < 0.05). However, between-study heterogeneity and publication bias were statistically significant (p < 0.05). Risk of bias was evaluated to be high in the majority of the studies. We identified and discussed several reasons that could contribute to the heterogeneity between the results of the studies examined. The results of the meta-analysis provide promising evidence that there is indeed an association between antibiotic-induced gut dysbiosis and psychopathologies. However, inconsistencies in the implemented methodologies make generalizing these results difficult. Gut microbiota depletion using antibiotics may be a useful strategy to evaluate if and how gut microbes influence cognition, emotion, and behavior, but the heterogeneity in methodologies used precludes any definitive interpretations for a translational impact on clinical practice.
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Affiliation(s)
- Shivdeep S. Hayer
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada
| | - Soonjo Hwang
- Department of Psychiatry, University of Nebraska Medical Center, Omaha, NE, United States
| | - Jonathan B. Clayton
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
- Primate Microbiome Project, University of Nebraska-Lincoln, Lincoln, NE, United States
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Mengoli M, Conti G, Fabbrini M, Candela M, Brigidi P, Turroni S, Barone M. Microbiota-gut-brain axis and ketogenic diet: how close are we to tackling epilepsy? Microbiome Res Rep 2023; 2:32. [PMID: 38045924 PMCID: PMC10688818 DOI: 10.20517/mrr.2023.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 08/01/2023] [Accepted: 08/21/2023] [Indexed: 12/05/2023]
Abstract
The microbiota-gut-brain axis refers to the intricate bidirectional communication between commensal microorganisms residing in the digestive tract and the central nervous system, along neuroendocrine, metabolic, immune, and inflammatory pathways. This axis has been suggested to play a role in several neurological disorders, such as Parkinson's disease, Alzheimer's disease, multiple sclerosis, and epilepsy, paving the way for microbiome-based intervention strategies for the mitigation and treatment of symptoms. Epilepsy is a multifaceted neurological condition affecting more than 50 million individuals worldwide, 30% of whom do not respond to conventional pharmacological therapies. Among the first-hand microbiota modulation strategies, nutritional interventions represent an easily applicable option in both clinical and home settings. In this narrative review, we summarize the mechanisms underlying the microbiota-gut-brain axis involvement in epilepsy, discuss the impact of antiepileptic drugs on the gut microbiome, and then the impact of a particular dietary pattern, the ketogenic diet, on the microbiota-gut-brain axis in epileptic patients. The investigation of the microbiota response to non-pharmacological therapies is an ever-expanding field with the potential to allow the design of increasingly accessible and successful intervention strategies.
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Affiliation(s)
- Mariachiara Mengoli
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
| | - Gabriele Conti
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40126, Italy
| | - Marco Fabbrini
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40126, Italy
| | - Marco Candela
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40126, Italy
| | - Patrizia Brigidi
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
| | - Silvia Turroni
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40126, Italy
| | - Monica Barone
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna 40138, Italy
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Zhu X, Wu S, Zhou Y, Xiao T, Xia L, Wang Y, Xiao A, Guo J, Zhang M, Wen Y, Shang D, Yu L. The pharmacological actions of Danzhi-xiaoyao-San on depression involve lysophosphatidic acid and microbiota-gut-brain axis: novel insights from a systems pharmacology analysis of a double-blind, randomized, placebo-controlled clinical trial. J Biomol Struct Dyn 2023:1-16. [PMID: 37632305 DOI: 10.1080/07391102.2023.2251067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023]
Abstract
Danzhi-xiaoyao-San (DZXYS), a Traditional Chinese Medicine, plays an essential role in the clinical treatment of depression, but its mechanisms in humans remain unclear. To investigate its pharmacological effects and mechanisms as an add-on therapy for depression, we conducted a double-blind, placebo-controlled trial with depressed patients receiving selective serotonin reuptake inhibitors (SSRIs). Serum and fecal samples were collected for metabolomic and microbiome analysis using UHPLC-QTRAP-MS/MS and 16S rRNA gene sequencing technologies, respectively. Depression symptoms were assessed using the 24-item Hamilton Depression Scale. We employed network pharmacology, metabolomics, and molecular docking to identify potential targets associated with DZXYS. We also examined the correlation between gut microbes and metabolites to understand how DZXYS affects the microbiota-gut-brain axis. The results showed that DZXYS combined with SSRIs was more effective than SSRIs alone in improving depression. We identified 39 differential metabolites associated with DZXYS treatment and found seven upregulated metabolic pathways. The active ingredients quercetin and luteolin were docked to targets (AVPR2, EGFR, F2, and CDK6) associated with the enriched pathways 'pancreatic cancer' and 'phospholipase D signaling pathway', which included the metabolite lysophosphatidic acid [LPA(0:0/16:0)]. Additionally, we identified 32 differential gut microbiota species related to DZXYS treatment, with Bacteroides coprophilus and Ruminococcus gnavus showing negative correlations with specific metabolites such as L-2-aminobutyric acid and LPA(0:0/16:0). Our findings indicate that DZXYS's antidepressant mechanisms involve multiple targets, pathways, and the regulation of LPA and the microbiota-gut-brain axis. These insights from our systems pharmacology analysis contribute to a better understanding of DZXYS's potential pharmacological mechanisms in depression treatment.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Xiuqing Zhu
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shengwei Wu
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Integrated Chinese and Western Medicine, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yufang Zhou
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Integrated Chinese and Western Medicine, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Tao Xiao
- Department of Clinical Research, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Liang Xia
- Chinese Academy of Medical Sciences & Peking Union Medical College, Institute of Materia Medica, Beijing, China
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Youtian Wang
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Integrated Chinese and Western Medicine, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Aixiang Xiao
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Nursing Department, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jianxiong Guo
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Integrated Chinese and Western Medicine, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ming Zhang
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuguan Wen
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Dewei Shang
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lin Yu
- The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou, China
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Huh E, Choi JG, Lee MY, Kim JH, Choi Y, Ju IG, Eo H, Park MG, Kim DH, Park HJ, Lee CH, Oh MS. Peripheral metabolic alterations associated with pathological manifestations of Parkinson's disease in gut-brain axis-based mouse model. Front Mol Neurosci 2023; 16:1201073. [PMID: 37635904 PMCID: PMC10447900 DOI: 10.3389/fnmol.2023.1201073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/26/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction Parkinson's disease (PD) is a representative neurodegenerative disease, and its diagnosis relies on the evaluation of clinical manifestations or brain neuroimaging in the absence of a crucial noninvasive biomarker. Here, we used non-targeted metabolomics profiling to identify metabolic alterations in the colon and plasma samples of Proteus mirabilis (P. mirabilis)-treated mice, which is a possible animal model for investigating the microbiota-gut-brain axis. Methods We performed gas chromatography-mass spectrometry to analyze the samples and detected metabolites that could reflect P. mirabilis-induced disease progression and pathology. Results and discussion Pattern, correlation and pathway enrichment analyses showed significant alterations in sugar metabolism such as galactose metabolism and fructose and mannose metabolism, which are closely associated with energy metabolism and lipid metabolism. This study indicates possible metabolic factors for P. mirabilis-induced pathological progression and provides evidence of metabolic alterations associated with P. mirabilis-mediated pathology of brain neurodegeneration.
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Affiliation(s)
- Eugene Huh
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Jin Gyu Choi
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Mee Youn Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Jin Hee Kim
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Yujin Choi
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - In Gyoung Ju
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Hyeyoon Eo
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Myoung Gyu Park
- MetaCen Therapeutics Inc. R&D Center, Suwon, Republic of Korea
| | - Dong-Hyun Kim
- Neurobiota Research Center, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
| | - Hi-Joon Park
- Acupuncture and Meridian Science Research Center (AMSRC), College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Choong Hwan Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Myung Sook Oh
- Department of Oriental Pharmaceutical Science and Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, Seoul, Republic of Korea
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul, Republic of Korea
- Department of Integrated Drug Development and Natural Products, Graduate School, Kyung Hee University, Seoul, Republic of Korea
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Zhang Y, Sun Y, Liu Y, Liu J, Sun J, Liu X, Fan B, Lu C, Wang F. Polygonum sibiricum polysaccharides exert the antidepressant-like effects in chronic unpredictable mild stress-induced depressive mice by modulating microbiota-gut-brain axis. Phytother Res 2023; 37:3408-3423. [PMID: 36996849 DOI: 10.1002/ptr.7813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 02/26/2023] [Accepted: 03/17/2023] [Indexed: 04/01/2023]
Abstract
Polygonum sibiricum polysaccharides (PSP) are one of the main active components of Polygonatum sibiricum, which is a traditional Chinese medicine with food and drug homologies. Recent studies have revealed the antidepressant-like effects of PSP. However, the precise mechanisms have not been clarified. Therefore, the present study was conducted to explore that whether PSP could exert the antidepressant-like effects via microbiota-gut-brain (MGB) axis in chronic unpredictable mild stress (CUMS)-induced depressive mice by transplantation of fecal microbiota (FMT) from PSP administration mice. FMT markedly reversed the depressive-like behaviors of CUMS-induced mice in the open field, the sucrose preference, the tail suspension, the forced swimming, and the novelty-suppressed feeding tests. FMT significantly increased the levels of 5-hydroxytryptamine and norepinephrine, decreased the levels of the pro-inflammatory cytokines in the hippocampus and reduced the levels of corticosterone, an adrenocorticotropic-hormone, in the serum of CUMS-induced mice. In addition, administration of PSP and FMT significantly increased the expressions of ZO-1 and occludin in the colon and decreased the levels of lipopolysaccharide and interferon-γ in the serum of CUMS-induced mice. Moreover, administration of PSP and FMT regulated the signaling pathways of PI3K/AKT/TLR4/NF-κB and ERK/CREB/BDNF. Taken together, these findings indicated that PSP exerted antidepressant-like effects via the MGB axis.
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Affiliation(s)
- Yingyu Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
| | - Yuan Sun
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, 350001, China
| | - Yupei Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
| | - Jiameng Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
| | - Jing Sun
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
| | - Xinmin Liu
- Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, 100193, China
| | - Bei Fan
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
| | - Cong Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
| | - Fengzhong Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
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Chen J, Guo P, Han M, Chen K, Qin J, Yang F. Cognitive protection of sinomenine in type 2 diabetes mellitus through regulating the EGF/Nrf2/HO-1 signaling, the microbiota-gut-brain axis, and hippocampal neuron ferroptosis. Phytother Res 2023; 37:3323-3341. [PMID: 37036428 DOI: 10.1002/ptr.7807] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 02/26/2023] [Accepted: 03/05/2023] [Indexed: 04/11/2023]
Abstract
Recent years have witnessed a growing research interest in traditional Chinese medicine as a neuroprotective nutrient in the management of diabetic cognitive dysfunction. However, the underlying molecular mechanisms of sinomenine in mediating ferroptosis of hippocampal neurons have been poorly understood. This study sought to decipher the potential effect and molecular mechanism of sinomenine in the cognitive dysfunction following type 2 diabetes mellitus (T2DM). Multi-omics analysis was conducted to identify the microbiota-gut-brain axis in T2DM patient samples obtained from the publicly available database. In HT-22 cells, erastin was utilized to create a ferroptosis model, and streptozotocin was injected intraperitoneally to create a rat model of DM. It was noted that intestinal flora imbalance occurred in patients with T2DM-associated cognitive dysfunction. Sinomenine could reduce Erastin-induced hippocampus neuronal ferroptosis by increasing EGF expression. EGF protected hippocampal neurons against ferroptosis by activating the Nrf2/HO-1 signaling pathway. Furthermore, in vivo results confirmed that sinomenine blocked ferroptosis of hippocampal neurons and alleviated cognitive dysfunction in T2DM rats. Collectively, these results suggest that sinomenine confers neuroprotective effects by curtailing hippocampal neuron ferroptosis via the EGF/Nrf2/HO-1 signaling and microbiota-gut-brain axis. It may be a candidate for the treatment of diabetic cognitive dysfunction.
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Affiliation(s)
- Ji Chen
- Department of Endocrinology, The First People's Hospital of Huaihua, Huaihua, P.R. China
| | - Peng Guo
- Department of Anesthesiology, The First People's Hospital of Huaihua, Huaihua, P.R. China
| | - Mingming Han
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China|, Hefei, P.R. China
| | - Kemin Chen
- Department of Anesthesiology, The First Affiliated Hospital, University of South China, Hengyang, P.R. China
| | - Jie Qin
- Department of Anesthesiology, The First Affiliated Hospital, University of South China, Hengyang, P.R. China
| | - Fengrui Yang
- Department of Anesthesiology, The First People's Hospital of Huaihua, Huaihua, P.R. China
- Department of Anesthesiology, The First Affiliated Hospital, University of South China, Hengyang, P.R. China
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Zhang ZT, Deng SM, Chen C, He QH, Peng XW, Liang QF, Zhuang GD, Wang SM, Tang D. Pterostilbene could alleviate diabetic cognitive impairment by suppressing TLR4/NF-кB pathway through microbiota-gut-brain axis. Phytother Res 2023; 37:3522-3542. [PMID: 37037513 DOI: 10.1002/ptr.7827] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/12/2023]
Abstract
Diabetic cognitive impairment (DCI) is a serious neurodegenerative disorder caused by diabetes, with chronic inflammation being a crucial factor in its pathogenesis. Pterostilbene is a well-known natural stilbene derivative that has excellent anti-inflammatory activity, suggesting its potential medicinal advantages for treating DCI. Therefore, this study is to explore the beneficial effects of pterostilbene for improving cognitive dysfunction in DCI mice. A diabetic model was induced by a high-fat diet plus streptozotocin (40 mg·kg-1 ) for consecutive 5 days. After the animals were confirmed to be in a diabetic state, they were treated with pterostilbene (20 or 60 mg·kg-1 , i.g.) for 10 weeks. Pharmacological evaluation showed pterostilbene could ameliorate cognitive dysfunction, regulate glycolipid metabolism disorders, improve neuronal damage, and reduce the accumulation of β-amyloid in DCI mice. Pterostilbene alleviated neuroinflammation by suppressing oxidative stress and carbonyl stress damage, astrocyte and microglia activation, and dopaminergic neuronal loss. Further investigations showed that pterostilbene reduced the level of lipopolysaccharide, modulated colon and brain TLR4/NF-κB signaling pathways, and decreased the release of inflammatory factors, which in turn inhibited intestinal inflammation and neuroinflammation. Furthermore, pterostilbene could also improve the homeostasis of intestinal microbiota, increase the levels of short-chain fatty acids and their receptors, and suppress the loss of intestinal tight junction proteins. In addition, the results of plasma non-targeted metabolomics revealed that pterostilbene could modulate differential metabolites and metabolic pathways associated with inflammation, thereby suppressing systemic inflammation in DCI mice. Collectively, our study found for the first time that pterostilbene could alleviate diabetic cognitive dysfunction by inhibiting the TLR4/NF-κB pathway through the microbiota-gut-brain axis, which may be one of the potential mechanisms for its neuroprotective effects.
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Affiliation(s)
- Zhi-Tong Zhang
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
- School of Pharmacy, Jiangsu Engineering Research Center for Development and Application of External Drugs in TCM, Nanjing University of Chinese Medicine, Nanjing, China
| | - Si-Min Deng
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Chong Chen
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qing-Hui He
- Amway (China) R&D Co. Ltd., Guangzhou, China
| | | | - Qing-Feng Liang
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Guo-Dong Zhuang
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Shu-Mei Wang
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
| | - Dan Tang
- Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou, China
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Wang J, Huang LI, Li H, Chen G, Yang L, Wang D, Han H, Zheng G, Wang X, Liang J, He W, Fang F, Liao J, Sun D. Effects of ketogenic diet on the classification and functional composition of intestinal flora in children with mitochondrial epilepsy. Front Neurol 2023; 14:1237255. [PMID: 37588668 PMCID: PMC10426284 DOI: 10.3389/fneur.2023.1237255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/14/2023] [Indexed: 08/18/2023] Open
Abstract
The ketogenic diet (KD) has shown excellent performance in the treatment of refractory epilepsy, but how it works is not yet fully understood. Gut microbiota is associated with various neurological disorders through the brain-gut axis. Different dietary patterns have different effects on the composition and function of gut microbiota. Here, by analyzing fecal samples from some patients with mitochondrial epilepsy before and after KD treatment through 16SrRNA sequencing, we found that KD intervention reduced the abundance of Firmicutes in the patient's gut, while the abundance of Bacteroidota increased in the KD group. LefSe analysis showed that Actinobacteriota, Phascolarctobacterium had significant advantages in the control group, while Bacteroides increased significantly after KD intervention, especially Bacteroides fragilis. Functional analysis showed that there were significant differences in 12 pathways in level 3. These changes suggest that KD can change the composition and diversity of the gut microbiota in patients and affect their function. Changes in specific bacterial groups in the gut may serve as biomarkers for the therapeutic effects of KD on epilepsy.
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Affiliation(s)
- Jing Wang
- Department of Pediatric Neurology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - LIjuan Huang
- Department of Pediatric Neurology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hua Li
- Department of Epilepsy Center, Guangdong 999 Brain Hospital, Guangzhou, China
| | - Guohong Chen
- Department of Neurology, Henan Provincial Children’s Hospital, Zhengzhou, China
| | - Liming Yang
- Department of Neurology, Hunan Provincial Children’s Hospital, Changsha, China
| | - Dong Wang
- Department of Neurology, Xi’an Children’s Hospital, Xi’an, China
| | - Hong Han
- Department of Neurology, Children’s Hospital of Shanxi, Taiyuan, China
| | - Guo Zheng
- Department of Neurology, Nanjing Children’s Hospital, Nanjing, China
| | - Xu Wang
- Department of Neurology, Changchun Children’s Hospital, Changchun, China
| | - Jianmin Liang
- Department of Neurology, The First Bethune Hospital of Jilin University, Changchun, China
| | - Weijie He
- Aegicare (Shenzhen) Technology Co., Ltd., Shenzhen, China
| | - Fang Fang
- Department of Neurology, Beijing Children’s Hospital, Capital Medical University, Beijing, China
| | - Jianxiang Liao
- Department of Neurology, Shenzhen Children’s Hospital, Shenzhen, China
| | - Dan Sun
- Department of Pediatric Neurology, Wuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Lei W, Cheng Y, Gao J, Liu X, Shao L, Kong Q, Zheng N, Ling Z, Hu W. Akkermansia muciniphila in neuropsychiatric disorders: friend or foe? Front Cell Infect Microbiol 2023; 13:1224155. [PMID: 37492530 PMCID: PMC10363720 DOI: 10.3389/fcimb.2023.1224155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/26/2023] [Indexed: 07/27/2023] Open
Abstract
An accumulating body of evidence suggests that the bacterium Akkermansia muciniphila exhibits positive systemic effects on host health, mainly by improving immunological and metabolic functions, and it is therefore regarded as a promising potential probiotic. Recent clinical and preclinical studies have shown that A. muciniphila plays a vital role in a variety of neuropsychiatric disorders by influencing the host brain through the microbiota-gut-brain axis (MGBA). Numerous studies observed that A. muciniphila and its metabolic substances can effectively improve the symptoms of neuropsychiatric disorders by restoring the gut microbiota, reestablishing the integrity of the gut mucosal barrier, regulating host immunity, and modulating gut and neuroinflammation. However, A. muciniphila was also reported to participate in the development of neuropsychiatric disorders by aggravating inflammation and influencing mucus production. Therefore, the exact mechanism of action of A. muciniphila remains much controversial. This review summarizes the proposed roles and mechanisms of A. muciniphila in various neurological and psychiatric disorders such as depression, anxiety, Parkinson's disease, Alzheimer's disease, multiple sclerosis, strokes, and autism spectrum disorders, and provides insights into the potential therapeutic application of A. muciniphila for the treatment of these conditions.
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Affiliation(s)
- Wenhui Lei
- Jinan Microecological Biomedicine Shandong Laboratory, Shandong First Medical University, Jinan, Shandong, China
| | - Yiwen Cheng
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jie Gao
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China
| | - Xia Liu
- Department of Intensive Care Unit, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Li Shao
- School of Clinical Medicine, Institute of Hepatology and Metabolic Diseases, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Qingming Kong
- School of Biological Engineering, Hangzhou Medical College, Institute of Parasitic Diseases, Hangzhou, Zhejiang, China
| | - Nengneng Zheng
- Department of Obstetrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zongxin Ling
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Weiming Hu
- Department of Psychiatry, Quzhou Third Hospital, Quzhou, Zhejiang, China
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Wang H, Zhao T, Liu Z, Danzengquzhen, Cisangzhuoma, Ma J, Li X, Huang X, Li B. The neuromodulatory effects of flavonoids and gut Microbiota through the gut-brain axis. Front Cell Infect Microbiol 2023; 13:1197646. [PMID: 37424784 PMCID: PMC10327292 DOI: 10.3389/fcimb.2023.1197646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/09/2023] [Indexed: 09/10/2023] Open
Abstract
Recent investigations show that dietary consumption of flavonoids could potentially confer neuroprotective effects through a variety of direct and indirect mechanisms. Numerous flavonoids have been shown to cross the BBB and accumulate within the central nervous system (CNS). Some of these compounds purportedly counteract the accumulation and deleterious effects of reactive oxygen species, fostering neuronal survival and proliferation by inhibiting neuroinflammatory and oxidative stress responses. Moreover, several studies suggest that gut microbiota may participate in regulating brain function and host behavior through the production and modulation of bioactive metabolites. Flavonoids may shape gut microbiota composition by acting as carbon substrates to promote the growth of beneficial bacteria that produce these neuroprotective metabolites, consequently antagonizing or suppressing potential pathogens. By influencing the microbiota-gut-brain axis through this selection process, flavonoids may indirectly improve brain health. This review examines the current state of research into the relationship between bioactive flavonoids, gut microbiota, and the gut-brain axis.
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Affiliation(s)
- Haoran Wang
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Tingting Zhao
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Zhenjiang Liu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, China
| | - Danzengquzhen
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
| | - Cisangzhuoma
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
| | - Jinying Ma
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
| | - Xin Li
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaodan Huang
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Bin Li
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
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Abstract
Cognitive function in humans depends on the complex and interplay between multiple body systems, including the hypothalamic-pituitary-adrenal (HPA) axis. The gut microbiota, which vastly outnumbers human cells and has a genetic potential that exceeds that of the human genome, plays a crucial role in this interplay. The microbiota-gut-brain (MGB) axis is a bidirectional signalling pathway that operates through neural, endocrine, immune, and metabolic pathways. One of the major neuroendocrine systems responding to stress is the HPA axis which produces glucocorticoids such as cortisol in humans and corticosterone in rodents. Appropriate concentrations of cortisol are essential for normal neurodevelopment and function, as well as cognitive processes such as learning and memory, and studies have shown that microbes modulate the HPA axis throughout life. Stress can significantly impact the MGB axis via the HPA axis and other pathways. Animal research has advanced our understanding of these mechanisms and pathways, leading to a paradigm shift in conceptual thinking about the influence of the microbiota on human health and disease. Preclinical and human trials are currently underway to determine how these animal models translate to humans. In this review article, we summarize the current knowledge of the relationship between the gut microbiota, HPA axis, and cognition, and provide an overview of the main findings and conclusions in this broad field.
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Affiliation(s)
- Jody A. Rusch
- Division of Chemical Pathology, Department of Pathology, University of Cape Town, Cape Town, South Africa
- C17 Chemical Pathology Laboratory, Groote Schuur Hospital, National Health Laboratory Service, Cape Town, South Africa
| | - Brian T. Layden
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Department of Medicine, Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
| | - Lara R. Dugas
- Division of Epidemiology and Biostatistics, School of Public Health, University of Cape Town, Cape Town, South Africa
- Public Health Sciences, Parkinson School of Health Sciences and Public Health, Loyola University Chicago, Maywood, IL, United States
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Li J, Li D, Chen Y, Chen W, Xu J, Gao L. Gut Microbiota and Aging: Traditional Chinese Medicine and Modern Medicine. Clin Interv Aging 2023; 18:963-986. [PMID: 37351381 PMCID: PMC10284159 DOI: 10.2147/cia.s414714] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/08/2023] [Indexed: 06/24/2023] Open
Abstract
The changing composition of gut microbiota, much like aging, accompanies people throughout their lives, and the inextricable relationship between both has recently attracted extensive attention as well. Modern medical research has revealed that a series of changes in gut microbiota are involved in the aging process of organisms, which may be because gut microbiota modulates aging-related changes related to innate immunity and cognitive function. At present, there is no definite and effective method to delay aging. However, Nobel laureate Tu Youyou's research on artemisinin has inspired researchers to study the importance of Traditional Chinese Medicine (TCM). TCM, as an ancient alternative medicine, has unique advantages in preventive health care and in treating diseases as it already has formed an independent understanding of the aging system. TCM practitioners believe that the mechanism of aging is mainly deficiency, and pathological states such as blood stasis, qi stagnation and phlegm coagulation can exacerbate the process of aging, which involves a series of organs, including the brain, kidney, heart, liver and spleen. Our current understanding of aging has led us to realise that TCM can indeed make some beneficial changes, such as the improvement of cognitive impairment. However, due to the multi-component and multi-target nature of TCM, the exploration of its mechanism of action has become extremely complex. While analysing the relationship between gut microbiota and aging, this review explores the similarities and differences in treatment methods and mechanisms between TCM and Modern Medicine, in order to explore a new approach that combines TCM and Modern Medicine to regulate gut microbiota, improve immunity and delay aging.
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Affiliation(s)
- Jinfan Li
- Department of First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250000, People’s Republic of China
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Dong Li
- Department of Diabetes, Licheng District Hospital of Traditional Chinese Medicine, Jinan, Shandong, 250100, People’s Republic of China
| | - Yajie Chen
- Department of Rehabilitation and Health Care, Jinan Vocational College of Nursing, Jinan, Shandong, 250100, People’s Republic of China
| | - Wenbin Chen
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
| | - Jin Xu
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
| | - Ling Gao
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
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Ikuta K, Joho D, Kakeyama M, Matsumoto M. Bifidobacterium animalis subsp. lactis and arginine mixture intake improves cognitive flexibility in mice. Front Nutr 2023; 10:1164809. [PMID: 37346910 PMCID: PMC10279864 DOI: 10.3389/fnut.2023.1164809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/09/2023] [Indexed: 06/23/2023] Open
Abstract
The relationship between intestinal microbiota and cognitive function has been investigated as one of the major topics within the intestinal microbiota-gut-brain axis. Although an increasing number of studies have demonstrated an improvement in learning and memory when using probiotics or prebiotics, to date, there are no studies that target the cognitive flexibility observed in the early stages of several neuropsychiatric diseases, including dementia. We have recently developed a novel behavioral task using the touchscreen operant system to assess cognitive flexibility. We found that the disruption of the intestinal microbiota in mice induced a decline in cognitive flexibility. In the present study, we investigated the effects of treatments consisting of Bifidobacterium animalis subsp. lactis and arginine (Bifal + Arg), which promote the production of intestinal bacterial polyamine, on cognitive flexibility in the mouse model. Male C57BL6 mice orally treated with Bifal + Arg three times a week gradually decreased the 1st-choice incorrect diagonal rate with repeated reversals compared with the control group. Furthermore, in serial reversal phases, Bifal + Arg-treated mice shifted to the behavior of choosing a new correct spot more quickly after the reversal, and this was faster with repeated reversals. These results indicate that this treatment adapts to change and improves cognitive flexibility. This is the first report to show that intestinal environmental control, including probiotics and prebiotics, improves cognitive flexibility in mice.
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Affiliation(s)
- Kayo Ikuta
- Dairy Science and Technology Institute, Kyodo Milk Industry Co., Ltd., Tokyo, Japan
| | - Daisuke Joho
- Laboratory for Environmental Brain Science, Faculty of Human Sciences, Waseda University, Tokorozawa, Japan
| | - Masaki Kakeyama
- Laboratory for Environmental Brain Science, Faculty of Human Sciences, Waseda University, Tokorozawa, Japan
- Research Institute for Environmental Medical Sciences, Comprehensive Research Organization, Waseda University, Tokorozawa, Japan
| | - Mitsuharu Matsumoto
- Dairy Science and Technology Institute, Kyodo Milk Industry Co., Ltd., Tokyo, Japan
- Research Institute for Environmental Medical Sciences, Comprehensive Research Organization, Waseda University, Tokorozawa, Japan
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Akinrinde A, Adigun K, Mustapha O. Cobalt-induced neuro-behavioural alterations are accompanied by profound Purkinje cell and gut-associated responses in rats. Environ Anal Health Toxicol 2023; 38:e2023010-0. [PMID: 37933104 PMCID: PMC10628406 DOI: 10.5620/eaht.2023010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 04/21/2023] [Indexed: 11/08/2023] Open
Abstract
Metal ions including cobalt (Co) ions reportedly exhibit neurotoxic and antimicrobial properties. We hypothesized that oral exposure to Co may have implications for gut-dysbiosis with possible alterations of microbiota-gut-brain signaling in the host. In this preliminary study, we sought to examine whether exposure of male Wistar rats to cobalt chloride (CoCl2) at 0, 25, 50 and 100 mg/kg for two weeks affects select neurobehavioural indices, vagus nerve and brain morphology along with evaluation of associated changes in faecal bacterial flora, faecal fatty acids and the morphology of the intestines. CoCl2-exposed rats showed a dose-dependent reduction in hanging latency in the hanging wire (HW) test, reduced tendency to recognize novel objects in a Novel Object recognition (NOR) test, but increased interaction with open arms in the elevated plus maze (EPM) test, compared to controls. There were dose-dependent reductions in total heterotrophic count, coliforms, E. coli, Enterococcal and Lactobacilli counts in the faeces. Administration of CoCl2 at 100 mg/kg evoked the appearance of unsaturated fatty acids including palmitoleic, oleic and linoleic acids in the faeces as detected by gas chromatography-flame ion detection (GD-FID) analysis using fatty acid methyl esters (FAME) standards. Histopathological examination revealed chromatolysis of Purkinje cells in the cerebellum, although no significant lesions were present in the vagus nerve isolated from all the groups. In the intestines, there was moderate to severe infiltration of inflammatory cells into the duodenum, ileum, jejunum and colon while villi erosions were seen prominently in the ileum. These initial findings suggest that short-term exposure to Co can lead to gut-associated changes that may underlie neurotoxicity and alterations in behavior induced by Co.
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Affiliation(s)
- Akinleye Akinrinde
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Kabirat Adigun
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Oluwaseun Mustapha
- Department of Veterinary Anatomy, College of Veterinary Medicine, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
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Li Q, Meng LB, Chen LJ, Shi X, Tu L, Zhou Q, Yu JL, Liao X, Zeng Y, Yuan QY. The role of the microbiota-gut-brain axis and intestinal microbiome dysregulation in Parkinson's disease. Front Neurol 2023; 14:1185375. [PMID: 37305758 PMCID: PMC10249504 DOI: 10.3389/fneur.2023.1185375] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 04/24/2023] [Indexed: 06/13/2023] Open
Abstract
Parkinson's disease (PD) is a complex progressive neurodegenerative disease associated with aging. Its main pathological feature is the degeneration and loss of dopaminergic neurons related to the misfolding and aggregation of α-synuclein. The pathogenesis of PD has not yet been fully elucidated, and its occurrence and development process are closely related to the microbiota-gut-brain axis. Dysregulation of intestinal microbiota may promote the damage of the intestinal epithelial barrier, intestinal inflammation, and the upward diffusion of phosphorylated α-synuclein from the enteric nervous system (ENS) to the brain in susceptible individuals and further lead to gastrointestinal dysfunction, neuroinflammation, and neurodegeneration of the central nervous system (CNS) through the disordered microbiota-gut-brain axis. The present review aimed to summarize recent advancements in studies focusing on the role of the microbiota-gut-brain axis in the pathogenesis of PD, especially the mechanism of intestinal microbiome dysregulation, intestinal inflammation, and gastrointestinal dysfunction in PD. Maintaining or restoring homeostasis in the gut microenvironment by targeting the gut microbiome may provide future direction for the development of new biomarkers for early diagnosis of PD and therapeutic strategies to slow disease progression.
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Affiliation(s)
- Qing Li
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Ling-bing Meng
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Li-jun Chen
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Xia Shi
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Ling Tu
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Qi Zhou
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Jin-long Yu
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Xin Liao
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Yuan Zeng
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
| | - Qiao-ying Yuan
- Department of Nutrition, Southwest Hospital, Third Military Medical University (Army Medical University), The First Affiliated Hospital of PLA Army Medical University, Chongqing, China
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50
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Zhang W, Dong X, Huang R. Antiparkinsonian Effects of Polyphenols: A Narrative Review with a Focus on the Modulation of the Gut-brain Axis. Pharmacol Res 2023:106787. [PMID: 37224894 DOI: 10.1016/j.phrs.2023.106787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 04/23/2023] [Accepted: 05/02/2023] [Indexed: 05/26/2023]
Abstract
Polyphenols, which are naturally occurring bioactive compounds in fruits and vegetables, are emerging as potential therapeutics for neurological disorders such as Parkinson's disease (PD). Polyphenols have diverse biological activities, such as anti-oxidative, anti-inflammatory, anti-apoptotic, and α-synuclein aggregation inhibitory effects, which could ameliorate PD pathogenesis. Studies have shown that polyphenols are capable of regulating the gut microbiota (GM) and its metabolites; in turn, polyphenols are extensively metabolized by the GM, resulting in the generation of bioactive secondary metabolites. These metabolites may regulate various physiological processes, including inflammatory responses, energy metabolism, intercellular communication, and host immunity. With increasing recognition of the importance of the microbiota-gut-brain axis (MGBA) in PD etiology, polyphenols have attracted growing attention as MGBA regulators. In order to address the potential therapeutic role of polyphenolic compounds in PD, we focused on MGBA. DATA AVAILABILITY: Data will be made available on request.
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Affiliation(s)
- Wei Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning PR, China
| | - Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning PR, China
| | - Rui Huang
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning PR, China.
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