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Huang Q, Liu L, Tan X, Wang S, Wang S, Luo J, Chen J, Yang N, Jiang J, Liu Y, Hong X, Guo S, Shen Y, Gao F, Feng H, Zhang J, Shen Q, Li C, Ji L. Empagliflozin alleviates neuroinflammation by inhibiting astrocyte activation in the brain and regulating gut microbiota of high-fat diet mice. J Affect Disord 2024; 360:229-241. [PMID: 38823591 DOI: 10.1016/j.jad.2024.05.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/26/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024]
Abstract
A high-fat diet can modify the composition of gut microbiota, resulting in dysbiosis. Changes in gut microbiota composition can lead to increased permeability of the gut barrier, allowing bacterial products like lipopolysaccharides (LPS) to enter circulation. This process can initiate systemic inflammation and contribute to neuroinflammation. Empagliflozin (EF), an SGLT2 inhibitor-type hypoglycemic drug, has been reported to treat neuroinflammation. However, there is a lack of evidence showing that EF regulates the gut microbiota axis to control neuroinflammation in HFD models. In this study, we explored whether EF could improve neuroinflammation caused by an HFD via regulation of the gut microbiota and the mechanism underlying this phenomenon. Our data revealed that EF alleviates pathological brain injury, reduces the reactive proliferation of astrocytes, and increases the expression of synaptophysin. In addition, the levels of inflammatory factors in hippocampal tissue were significantly decreased after EF intervention. Subsequently, the results of 16S rRNA gene sequencing showed that EF could change the microbial community structure of mice, indicating that the abundance of Lactococcus, Ligilactobacillus and other microbial populations decreased dramatically. Therefore, EF alleviates neuroinflammation by inhibiting gut microbiota-mediated astrocyte activation in the brains of high-fat diet-fed mice. Our study focused on the gut-brain axis, and broader research on neuroinflammation can provide a more holistic understanding of the mechanisms driving neurodegenerative diseases and inform the development of effective strategies to mitigate their impact on brain health. The results provide strong evidence supporting the larger clinical application of EF.
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Affiliation(s)
- Qiaoyan Huang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Liu Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiaoyao Tan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Shitong Wang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
| | - Sichen Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jun Luo
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiayi Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Na Yang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiajun Jiang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yiming Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiao Hong
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Shunyuan Guo
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou 314408, China
| | - Yuejian Shen
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Feng Gao
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Huina Feng
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Jianliang Zhang
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Qing Shen
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China.
| | - Changyu Li
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Liting Ji
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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You M, Chen N, Yang Y, Cheng L, He H, Cai Y, Liu Y, Liu H, Hong G. The gut microbiota-brain axis in neurological disorders. MedComm (Beijing) 2024; 5:e656. [PMID: 39036341 PMCID: PMC11260174 DOI: 10.1002/mco2.656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 06/15/2024] [Accepted: 06/17/2024] [Indexed: 07/23/2024] Open
Abstract
Previous studies have shown a bidirectional communication between human gut microbiota and the brain, known as the microbiota-gut-brain axis (MGBA). The MGBA influences the host's nervous system development, emotional regulation, and cognitive function through neurotransmitters, immune modulation, and metabolic pathways. Factors like diet, lifestyle, genetics, and environment shape the gut microbiota composition together. Most research have explored how gut microbiota regulates host physiology and its potential in preventing and treating neurological disorders. However, the individual heterogeneity of gut microbiota, strains playing a dominant role in neurological diseases, and the interactions of these microbial metabolites with the central/peripheral nervous systems still need exploration. This review summarizes the potential role of gut microbiota in driving neurodevelopmental disorders (autism spectrum disorder and attention deficit/hyperactivity disorder), neurodegenerative diseases (Alzheimer's and Parkinson's disease), and mood disorders (anxiety and depression) in recent years and discusses the current clinical and preclinical gut microbe-based interventions, including dietary intervention, probiotics, prebiotics, and fecal microbiota transplantation. It also puts forward the current insufficient research on gut microbiota in neurological disorders and provides a framework for further research on neurological disorders.
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Affiliation(s)
- Mingming You
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Nan Chen
- Master of Public HealthSchool of Public HealthXiamen UniversityXiamenChina
| | - Yuanyuan Yang
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Lingjun Cheng
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Hongzhang He
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Yanhua Cai
- Master of Public HealthSchool of Public HealthXiamen UniversityXiamenChina
| | - Yating Liu
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Haiyue Liu
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
| | - Guolin Hong
- Xiamen Key Laboratory of Genetic TestingThe Department of Laboratory MedicineThe First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen UniversityXiamenChina
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Deng J, Huang Y, Yu K, Luo H, Zhou D, Li D. Changes in the gut microbiome of patients with esophageal cancer: A systematic review and meta-analysis based on 16S gene sequencing technology. Microb Pathog 2024; 193:106784. [PMID: 38971508 DOI: 10.1016/j.micpath.2024.106784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND Esophageal cancer (EC) possesses a high degree of malignancy and exhibits poor therapeutic outcomes and prognosis. However, its pathogenesis remains unclear. With the development of macrogene sequencing technology, changes in the intestinal flora have been found to be highly related to the development of EC, although discrepancies and controversies remain in this research area. MATERIALS AND METHODS We comprehensively searched the PubMed, EMBASE, and Cochrane's Central Controlled Trials Register and the Scientific Network's database search projects based on systematically reviewed preferred reporting projects and meta-analyses. We used Engauge Digitizer for data extraction and Stata 15.1 for data analysis. In addition, we used the Newcastle-Ottawa Scale for grade grading and forest and funnel plots, sensitivity, and Egger and Beggar tests to evaluate the risk of bias. RESULTS This study included 10 studies that assessed stool, tumor, and nontumor esophageal mucosa (gastroscopy and surgical resection) samples from 527 individuals, including 273 patients with EC and 254 healthy control group. We observed remarkable differences in microbial diversity in EC patients compared to healthy controls. The Chao1 index (46.01 vs. 42.67) was significantly increased in EC patients, whereas the Shannon index (14.90 vs. 19.05), ACE (39.24 vs. 58.47), and OTUs(28.93 vs. 70.10) were significantly lower. At the phylum level, the abundance of Bacteroidetes (37.89 vs. 32.77) increased significantly, whereas that of Firmicutes (37.63 vs. 38.72) decreased significantly; the abundance of Clostridium and Verruciformis increased, while that of Actinobacteria and Proteobacteria decreased to varying degrees. The abundance of Bacteroides (8.60 vs. 15.10) and Streptococcaceae (15.08 vs. 27.05) significantly reduced in EC. CONCLUSIONS According to our meta-analysis, in patients with EC, the Chao1 index increased, whereas the Shannon and the OTUs decreased. At the phylum level, the abundance of Firmicutes decreased significantly, whereas that of Bacteroidetes and Proteobacteria increased significantly. At the genus/family level, the abundance of Bacteroidaceae, Prevotellaceae and Streptococcaceae decreased significantly, whereas that of Veillonellaceae increased. This meta-analysis identified changes in gut microbiota in patients with EC; however, its conclusions were inconsistent.
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Affiliation(s)
- Jieyin Deng
- The Affiliated Hospital, Southwest Medical University, Luzhou 611630, China; Department of General Medicine, General Hospital of PLA Western Theater Command, Chengdu 610083, China
| | - Ye Huang
- Department of Nursing, Nursing School, Chengdu Medical College, Chengdu 610083, China
| | - Ke Yu
- Department of General Medicine, General Hospital of PLA Western Theater Command, Chengdu 610083, China
| | - Hong Luo
- Department of Oncology, General Hospital of PLA Western Theater Command, Chengdu 610083, China
| | - Daijun Zhou
- Department of Oncology, General Hospital of PLA Western Theater Command, Chengdu 610083, China.
| | - Dong Li
- The Affiliated Hospital, Southwest Medical University, Luzhou 611630, China; Department of Oncology, General Hospital of PLA Western Theater Command, Chengdu 610083, China.
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Lin K, Peng F, He K, Qian Z, Mei X, Su Z, Wujimaiti Y, Xia X, Zhang T. Research progress on intestinal microbiota regulating cognitive function through the gut-brain axis. Neurol Sci 2024; 45:3711-3721. [PMID: 38632176 DOI: 10.1007/s10072-024-07525-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
The intestinal microbiota community is a fundamental component of the human body and plays a significant regulatory role in maintaining overall health and in the management disease states.The intestinal microbiota-gut-brain axis represents a vital connection in the cognitive regulation of the central nervous system by the intestinal microbiota.The impact of intestinal microbiota on cognitive function is hypothesized to manifest through both the nervous system and circulatory system. Imbalances in intestinal microbiota during the perioperative period could potentially contribute to perioperative neurocognitive dysfunction. This article concentrates on a review of existing literature to explore the potential influence of intestinal microbiota on brain and cognitive functions via the nervous and circulatory systems.Additionally, it summarizes recent findings on the impact of perioperative intestinal dysbacteriosis on perioperative neurocognitive dysfunction and suggests novel approaches for prevention and treatment of this condition.
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Affiliation(s)
- Kaijie Lin
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Feng Peng
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China
| | - Kunyang He
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Zhengyu Qian
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Xuan Mei
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Zhikun Su
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | | | - Xun Xia
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China.
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China.
| | - Tianyao Zhang
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China.
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China.
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Zhang W, Kong J, Wei X, Mo S, Chen X, Chen Y, Yu Q, Shen M, Xie J. Structural changes of rice starch-anthocyanins complexes (V-type) and its impact on gut microbiotas and potential metabolic pathways during in vitro fermentation. Food Chem 2024; 448:139064. [PMID: 38547705 DOI: 10.1016/j.foodchem.2024.139064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/01/2024] [Accepted: 03/15/2024] [Indexed: 04/24/2024]
Abstract
This study explored the differences in the in vitro fermentation properties of rice starch (RS) and rice starch-anthocyanins complexes (RS-A). Structural characterization suggested that RS and RS-A complexes showed a V-type crystalline structure. The degree of order (DO) and degree of double helix (DD) values of RS and RS-A complexes were enhanced after fermentation. Moreover, the RS-A complexes could improve the relative abundance of Bacteroidetes, Ruminococcaceae, and up-regulate gut microbiota diversity to maintain gut homeostasis. Relative abundance of potential metabolic pathways, such as energy metabolism, digestion system, and carbohydrate degradation overexpressed in the presence of RS-A complexes. The results demonstrated that the RS-A complexes had slower fermentation rates contributing to the transport of the formed short-chain fatty acid (SCFA) to the end of the colon and that the crystallinity might be a factor influencing the utilization of the starch matrix by the gut microbiota for SCFA formation.
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Affiliation(s)
- Weidong Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Jia Kong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Xiaoxiao Wei
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Shiru Mo
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Xiaodie Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Yi Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Qiang Yu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Mingyue Shen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
| | - Jianhua Xie
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
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Tu G, Jiang N, Chen W, Liu L, Hu M, Liao B. The neurobiological mechanisms underlying the effects of exercise interventions in autistic individuals. Rev Neurosci 2024; 0:revneuro-2024-0058. [PMID: 39083671 DOI: 10.1515/revneuro-2024-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/15/2024] [Indexed: 08/02/2024]
Abstract
Autism spectrum disorder is a pervasive and heterogeneous neurodevelopmental condition characterized by social communication difficulties and rigid, repetitive behaviors. Owing to the complex pathogenesis of autism, effective drugs for treating its core features are lacking. Nonpharmacological approaches, including education, social-communication, behavioral and psychological methods, and exercise interventions, play important roles in supporting the needs of autistic individuals. The advantages of exercise intervention, such as its low cost, easy implementation, and high acceptance, have garnered increasing attention. Exercise interventions can effectively improve the core features and co-occurring conditions of autism, but the underlying neurobiological mechanisms are unclear. Abnormal changes in the gut microbiome, neuroinflammation, neurogenesis, and synaptic plasticity may individually or interactively be responsible for atypical brain structure and connectivity, leading to specific autistic experiences and characteristics. Interestingly, exercise can affect these biological processes and reshape brain network connections, which may explain how exercise alleviates core features and co-occurring conditions in autistic individuals. In this review, we describe the definition, diagnostic approach, epidemiology, and current support strategies for autism; highlight the benefits of exercise interventions; and call for individualized programs for different subtypes of autistic individuals. Finally, the possible neurobiological mechanisms by which exercise improves autistic features are comprehensively summarized to inform the development of optimal exercise interventions and specific targets to meet the needs of autistic individuals.
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Affiliation(s)
- Genghong Tu
- Department of Sports Medicine, 47878 Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, 47878 Scientific Research Center, Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
| | - Nan Jiang
- Graduate School, 47878 Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
| | - Weizhong Chen
- Graduate School, 47878 Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
| | - Lining Liu
- Graduate School, 47878 Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
| | - Min Hu
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, 47878 Scientific Research Center, Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
| | - Bagen Liao
- Department of Sports Medicine, 47878 Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, 47878 Scientific Research Center, Guangzhou Sport University , Guangzhou, Guangdong, 510500, P.R. China
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Chandra S, Vassar R. The role of the gut microbiome in the regulation of astrocytes in Alzheimer's disease. Neurotherapeutics 2024:e00425. [PMID: 39054180 DOI: 10.1016/j.neurot.2024.e00425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/06/2024] [Accepted: 07/11/2024] [Indexed: 07/27/2024] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disorder and is the most common cause of dementia. AD is characterized pathologically by proteinaceous aggregates composed of amyloid beta (Aβ) and tau as well as progressive neurodegeneration. Concurrently with the buildup of protein aggregates, a strong neuroinflammatory response, in the form of reactive astrocytosis and microgliosis, occurs in the AD brain. It has recently been shown that the gut microbiome (GMB), composed of trillions of bacteria in the human intestine, can regulate both reactive astrocytosis and microgliosis in the context of both amyloidosis and tauopathy. Many studies have implicated microglia in these processes. However, growing evidence suggests that interactions between the GMB and astrocytes have a much larger role than previously thought. In this review, we summarize evidence regarding the gut microbiome in the control of reactive astrocytosis in AD.
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Affiliation(s)
- Sidhanth Chandra
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA; Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
| | - Robert Vassar
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
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Shumilov K, Ni A, Garcia-Bonilla M, Celorrio M, Friess SH. Early depletion of gut microbiota shape oligodendrocyte response after traumatic brain injury. J Neuroinflammation 2024; 21:171. [PMID: 39010082 PMCID: PMC11251111 DOI: 10.1186/s12974-024-03158-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 06/19/2024] [Indexed: 07/17/2024] Open
Abstract
White matter injury (WMI) is thought to be a major contributor to long-term cognitive dysfunctions after traumatic brain injury (TBI). This damage occurs partly due to apoptotic death of oligodendrocyte lineage cells (OLCs) after the injury, triggered directly by the trauma or in response to degenerating axons. Recent research suggests that the gut microbiota modulates the inflammatory response through the regulation of peripheral immune cell infiltration after TBI. Additionally, T-cells directly impact OLCs differentiation and proliferation. Therefore, we hypothesized that the gut microbiota plays a critical role in regulating the OLC response to WMI influencing T-cells differentiation and activation. Gut microbial depletion early after TBI chronically reduced re-myelination, acutely decreased OLCs proliferation, and was associated with increased myelin debris accumulation. Surprisingly, the absence of T-cells in gut microbiota depleted mice restored OLC proliferation and remyelination after TBI. OLCs co-cultured with T-cells derived from gut microbiota depleted mice resulted in impaired proliferation and increased expression of MHC-II compared with T cells from control-injured mice. Furthermore, MHC-II expression in OLCs appears to be linked to impaired proliferation under gut microbiota depletion and TBI conditions. Collectively our data indicates that depletion of the gut microbiota after TBI impaired remyelination, reduced OLCs proliferation with concomitantly increased OLC MHCII expression, and required the presence of T cells. This data suggests that T cells are an important mechanistic link by which the gut microbiota modulate the oligodendrocyte response and white matter recovery after TBI.
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Affiliation(s)
- Kirill Shumilov
- Department of Neurosurgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Allen Ni
- Department of Pediatrics, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | | | - Marta Celorrio
- Department of Pediatrics, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
| | - Stuart H Friess
- Department of Pediatrics, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.
- Division of Critical Care Medicine, Department of Pediatrics, Washington University in St. Louis School of Medicine and St. Louis Children's Hospital, Campus Box 8028, 3rd Fl MPRB 660 S. Euclid Avenue, St. Louis, MO, 63110, USA.
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Ashique S, Mohanto S, Ahmed MG, Mishra N, Garg A, Chellappan DK, Omara T, Iqbal S, Kahwa I. Gut-brain axis: A cutting-edge approach to target neurological disorders and potential synbiotic application. Heliyon 2024; 10:e34092. [PMID: 39071627 PMCID: PMC11279763 DOI: 10.1016/j.heliyon.2024.e34092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/10/2024] [Accepted: 07/03/2024] [Indexed: 07/30/2024] Open
Abstract
The microbiota-gut-brain axis (MGBA) represents a sophisticated communication network between the brain and the gut, involving immunological, endocrinological, and neural mediators. This bidirectional interaction is facilitated through the vagus nerve, sympathetic and parasympathetic fibers, and is regulated by the hypothalamic-pituitary-adrenal (HPA) axis. Evidence shows that alterations in gut microbiota composition, or dysbiosis, significantly impact neurological disorders (NDs) like anxiety, depression, autism, Parkinson's disease (PD), and Alzheimer's disease (AD). Dysbiosis can affect the central nervous system (CNS) via neuroinflammation and microglial activation, highlighting the importance of the microbiota-gut-brain axis (MGBA) in disease pathogenesis. The microbiota influences the immune system by modulating chemokines and cytokines, impacting neuronal health. Synbiotics have shown promise in treating NDs by enhancing cognitive function and reducing inflammation. The gut microbiota's role in producing neurotransmitters and neuroactive compounds, such as short-chain fatty acids (SCFAs), is critical for CNS homeostasis. Therapeutic interventions targeting the MGBA, including dietary modulation and synbiotic supplementation, offer potential benefits for managing neurodegenerative disorders. However, more in-depth clinical studies are necessary to fully understand and harness the therapeutic potential of the MGBA in neurological health and disease.
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Affiliation(s)
- Sumel Ashique
- Department of Pharmaceutical Sciences, Bengal College of Pharmaceutical Sciences & Research, Durgapur, 713212, West Bengal, India
| | - Sourav Mohanto
- Department of Pharmaceutics, Yenepoya Pharmacy College & Research Centre, Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India
| | - Mohammed Gulzar Ahmed
- Department of Pharmaceutics, Yenepoya Pharmacy College & Research Centre, Yenepoya (Deemed to Be University), Mangalore, Karnataka, 575018, India
| | - Neeraj Mishra
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University Madhya Pradesh (AUMP), Gwalior, MP, 474005, India
| | - Ashish Garg
- Department of Pharmaceutics, Guru Ramdas Khalsa Institute of Science and Technology (Pharmacy), Jabalpur, Madhya Pradesh, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Timothy Omara
- Department of Chemistry, College of Natural Sciences, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Shabnoor Iqbal
- African Medicines Innovations and Technologies Development, Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein, 9300, South Africa
| | - Ivan Kahwa
- Department of Pharmacy, Faculty of Medicine, Mbarara University of Science and Technology, Uganda
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10
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Gilbert SF. Inter-kingdom communication and the sympoietic way of life. Front Cell Dev Biol 2024; 12:1427798. [PMID: 39071805 PMCID: PMC11275584 DOI: 10.3389/fcell.2024.1427798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 06/26/2024] [Indexed: 07/30/2024] Open
Abstract
Organisms are now seen as holobionts, consortia of several species that interact metabolically such that they sustain and scaffold each other's existence and propagation. Sympoiesis, the development of the symbiotic relationships that form holobionts, is critical for our understanding the origins and maintenance of biodiversity. Rather than being the read-out of a single genome, development has been found to be sympoietic, based on multigenomic interactions between zygote-derived cells and symbiotic microbes. These symbiotic and sympoietic interactions are predicated on the ability of cells from different kingdoms of life (e.g., bacteria and animals) to communicate with one another and to have their chemical signals interpreted in a manner that facilitates development. Sympoiesis, the creation of an entity by the interactions of other entities, is commonly seen in embryogenesis (e.g., the creation of lenses and retinas through the interaction of brain and epidermal compartments). In holobiont sympoiesis, interactions between partners of different domains of life interact to form organs and biofilms, wherein each of these domains acts as the environment for the other. If evolution is forged by changes in development, and if symbionts are routinely involved in our development, then changes in sympoiesis can constitute an important factor in evolution.
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Affiliation(s)
- Scott F. Gilbert
- Department of Biology, Swarthmore College, Swarthmore, PA, United States
- Evolutionary Phenomics Group, Biotechnology Institute, University of Helsinki, Helsinki, Finland
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11
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Xu H, Luo Y, Li Q, Zhu H. Acupuncture influences multiple diseases by regulating gut microbiota. Front Cell Infect Microbiol 2024; 14:1371543. [PMID: 39040602 PMCID: PMC11260648 DOI: 10.3389/fcimb.2024.1371543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 06/13/2024] [Indexed: 07/24/2024] Open
Abstract
Acupuncture, an important green and side effect-free therapy in traditional Chinese medicine, is widely use both domestically and internationally. Acupuncture can interact with the gut microbiota and influence various diseases, including metabolic diseases, gastrointestinal diseases, mental disorders, nervous system diseases, and other diseases. This review presents a thorough analysis of these interactions and their impacts and examines the alterations in the gut microbiota and the potential clinical outcomes following acupuncture intervention to establish a basis for the future utilization of acupuncture in clinical treatments.
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Affiliation(s)
- Huimin Xu
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yingzhe Luo
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Qiaoqi Li
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hong Zhu
- Department of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Niemrungruang K, Thanakamchokchai J, Pongmala C, Khobkhun F. The effects of combining repetitive transcranial magnetic stimulation with task-specific training on gait performance in individuals with Parkinson's disease: A review article. PHYSIOTHERAPY RESEARCH INTERNATIONAL 2024; 29:e2105. [PMID: 38864408 DOI: 10.1002/pri.2105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/11/2024] [Accepted: 05/28/2024] [Indexed: 06/13/2024]
Abstract
BACKGROUND Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor impairments, especially in the area of gait disturbances. Physiotherapy, with a focus on task-specific training, has demonstrated a level of efficacy as regards alleviating symptoms and enhancing functional capabilities in individuals with PD. Repetitive Transcranial Magnetic Stimulation (rTMS) has emerged as a potential therapeutic intervention for improving motor functions in individuals with PD. AIMS This review article aims to investigate the effects of combining rTMS with task-specific training on gait performance in individuals with PD. MATERIALS AND METHODS PubMed, Physiotherapy Evidence Database (PEDro), and Scopus were all searched for relevant studies. The focus of the search was on studies that investigated the efficacy of combining rTMS with task-specific training to improve gait performance in individuals with PD. RESULTS Four studies were identified as fulfilling the eligibility criteria and were included in the study. The combination of rTMS with specific treadmill training and weight-bearing exercises can significantly enhance walking efficiency, including improvements in walking speed, self-mobility, and step rate. In addition, the combination of rTMS and task-specific training, such as treadmill-based training, shows promise in enhancing gait performance in individuals with PD. DISCUSSION AND CONCLUSION High-frequency rTMS targeting the primary motor cortex (or M1) can result in improved walking speed, self-mobility, and step rate. However, limited research exists regarding low-frequency stimulation of the supplementary motor area (SMA) in individuals with gait issues. Further research is required to determine the optimal parameters of rTMS, such as strength, frequency, and duration of stimulation and it is worth considering the incorporation of additional training modalities, including cognitive exercises.
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Affiliation(s)
- Kanjana Niemrungruang
- Physical Therapy Center, Faculty of Physical Therapy, Mahidol University, Bangkok, Thailand
| | - Jenjira Thanakamchokchai
- Parkinson Movement and Research Collaboration Laboratory, Faculty of Physical Therapy, Mahidol University, Nakhon Pathom, Thailand
| | - Chatkaew Pongmala
- Functional Neuroimaging, Cognitive and Mobility Laboratory, Department of Radiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Fuengfa Khobkhun
- Parkinson Movement and Research Collaboration Laboratory, Faculty of Physical Therapy, Mahidol University, Nakhon Pathom, Thailand
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Li B, Ma Y, Wang X, Zhao D, Wang Z, Wang G, Li C, Yang L, Ji H, Liu K, Chen Q, Yang Y, Ma W, Du J, Ma L, Zhang L, Qiang Y. Ketogenic Diets Alter the Gut Microbiome, Resulting in Decreased Susceptibility to and Cognitive Impairment in Rats with Pilocarpine-Induced Status Epilepticus. Neurochem Res 2024:10.1007/s11064-024-04168-y. [PMID: 38935224 DOI: 10.1007/s11064-024-04168-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/13/2024] [Accepted: 05/22/2024] [Indexed: 06/28/2024]
Abstract
A ketogenic diet (KD) is a high-fat, low-carbohydrate, and low-protein diet that exerts antiepileptic effects by attenuating spontaneous recurrent seizures, ameliorating learning and memory impairments, and modulating the gut microbiota composition. However, the role of the gut microbiome in the antiepileptic effects of a KD on temporal lobe epilepsy (TLE) induced by lithium-pilocarpine in adult rats is still unknown. Our study provides evidence demonstrating that a KD effectively mitigates seizure behavior and reduces acute-phase epileptic brain activity and that KD treatment alleviates hippocampal neuronal damage and improves cognitive impairment induced by TLE. We also observed that the beneficial effects of a KD are compromised when the gut microbiota is disrupted through antibiotic administration. Analysis of gut microbiota components via 16S rRNA gene sequencing in fecal samples collected from TLE rats fed either a KD or a normal diet. The Chao1 and ACE indices showed decreased species variety in KD-fed rats compared to TLE rats fed a normal diet. A KD increased the levels of Actinobacteriota, Verrucomicrobiota and Proteobacteria and decreased the level of Bacteroidetes. Interestingly, the abundances of Actinobacteriota and Verrucomicrobiota were positively correlated with learning and memory ability, and the abundance of Proteobacteria was positively correlated with seizure susceptibility. In conclusion, our study revealed the significant antiepileptic and neuroprotective effects of a KD on pilocarpine-induced epilepsy in rats, primarily mediated through the modulation of the gut microbiota. However, whether the gut microbiota mediates the antiseizure effects of a KD still needs to be better elucidated.
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Affiliation(s)
- Bianli Li
- Department of Emergency Medicine, General Hospital of Ningxia Medical University, Yinchuan, 750001, Ningxia, China
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Yue Ma
- Shenzhen MicroBT Technology Co., LTD, Yuehai Street, Nanshan District, Shenzhen, 518000, Guangdong, China
| | - Xuhui Wang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Di Zhao
- Department of Respiratory Medicine, People's Hospital of Ningxia Hui Autonomous Region, 301 Zhengyuan North Road, Yinchuan, 750001, Ningxia, China
| | - Ziqin Wang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, 410008, Hunan, China
| | - Guoyang Wang
- Third Clinical School of Medicine, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Chunyi Li
- Basic Medical School, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Lin Yang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Hui Ji
- Third Clinical School of Medicine, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Kunmei Liu
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Qiuyuan Chen
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Yong Yang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Wenqian Ma
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China
| | - Jianbin Du
- Department of Emergency Medicine, General Hospital of Ningxia Medical University, Yinchuan, 750001, Ningxia, China
| | - Lei Ma
- Department of Emergency Medicine, General Hospital of Ningxia Medical University, Yinchuan, 750001, Ningxia, China.
| | - Lianxiang Zhang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China.
| | - Yuanyuan Qiang
- Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750001, Ningxia, China.
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Li S, Qian Q, Xie Y, Wu Z, Yang H, Yin Y, Cui Y, Li X. Ameliorated Effects of Fucoidan on Dextran Sulfate Sodium-Induced Ulcerative Colitis and Accompanying Anxiety and Depressive Behaviors in Aged C57BL/6 Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14199-14215. [PMID: 38871671 DOI: 10.1021/acs.jafc.4c03039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Fucoidan has shown better effects on the improvement of acute ulcerative colitis (UC). However, the specific mechanisms by which fucoidan improves UC-related behavioral disorders in aged mice, especially its effect on the gut-brain axis, remain to be further explored. C57BL/6 male mice aged 8 months were gavaged with 400 or 100 mg/kg bw day fucoidan for five consecutive weeks, with UC being induced by ad libitum to dextran sulfate sodium (DSS) solution in the fifth week. The results showed that fucoidan ameliorated UC and accompanying anxiety- and depressive-like behaviors with downregulated expressions of (NOD)-like receptor family and pyrin domain-containing 3 (NLRP3), apoptosis-associated speck-like protein (ASC), cysteine aspartate-specific protease-1 (Caspase-1) and interlekin-1β (IL-1β), and elevated mRNA levels of brain-derived neurotrophic factor (Bdnf) and postsynaptic-density protein 95 (Psd-95) in cortex and hippocampus. Furthermore, fucoidan improved the permeability of intestinal barrier and blood-brain barrier and restored the abnormal structure of the gut microbiota with a significantly decreased ratio of Firmicutes to Bacteroidota (F/B) and obviously increased abundance of Akkermansia. As a diet-derived bioactive ingredient, fucoidan might be a better alternative for the prevention of UC and accompanying anxiety- and depressive-like behaviors.
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Affiliation(s)
- Shilan Li
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Qingfan Qian
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Yisha Xie
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Zhengli Wu
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Hao Yang
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Yan Yin
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Yuan Cui
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Xinli Li
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Major Chronic Non-communicable Diseases, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
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Stagaman K, Alexiev A, Sieler MJ, Hammer A, Kasschau KD, Truong L, Tanguay RL, Sharpton TJ. The zebrafish gut microbiome influences benzo[a]pyrene developmental neurobehavioral toxicity. Sci Rep 2024; 14:14618. [PMID: 38918492 PMCID: PMC11199668 DOI: 10.1038/s41598-024-65610-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 06/21/2024] [Indexed: 06/27/2024] Open
Abstract
Early-life exposure to environmental toxicants like Benzo[a]pyrene (BaP) is associated with several health consequences in vertebrates (i.e., impaired or altered neurophysiological and behavioral development). Although toxicant impacts were initially studied relative to host physiology, recent studies suggest that the gut microbiome is a possible target and/or mediator of behavioral responses to chemical exposure in organisms, via the gut-brain axis. However, the connection between BaP exposure, gut microbiota, and developmental neurotoxicity remains understudied. Using a zebrafish model, we determined whether the gut microbiome influences BaP impacts on behavior development. Embryonic zebrafish were treated with increasing concentrations of BaP and allowed to grow to the larval life stage, during which they underwent behavioral testing and intestinal dissection for gut microbiome profiling via high-throughput sequencing. We found that exposure affected larval zebrafish microbiome diversity and composition in a manner tied to behavioral development: increasing concentrations of BaP were associated with increased taxonomic diversity, exposure was associated with unweighted UniFrac distance, and microbiome diversity and exposure predicted larval behavior. Further, a gnotobiotic zebrafish experiment clarified whether microbiome presence was associated with BaP exposure response and behavioral changes. We found that gut microbiome state altered the relationship between BaP exposure concentration and behavioral response. These results support the idea that the zebrafish gut microbiome is a determinant of the developmental neurotoxicity that results from chemical exposure.
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Affiliation(s)
- Keaton Stagaman
- Department of Microbiology, Oregon State University, 226 Nash Hall, Corvallis, OR, 97331, USA
| | - Alexandra Alexiev
- Department of Microbiology, Oregon State University, 226 Nash Hall, Corvallis, OR, 97331, USA
| | - Michael J Sieler
- Department of Microbiology, Oregon State University, 226 Nash Hall, Corvallis, OR, 97331, USA
| | - Austin Hammer
- Department of Microbiology, Oregon State University, 226 Nash Hall, Corvallis, OR, 97331, USA
| | - Kristin D Kasschau
- Department of Microbiology, Oregon State University, 226 Nash Hall, Corvallis, OR, 97331, USA
| | - Lisa Truong
- Sinnhuber Aquatic Research Laboratory, Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Robyn L Tanguay
- Sinnhuber Aquatic Research Laboratory, Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Thomas J Sharpton
- Department of Microbiology, Oregon State University, 226 Nash Hall, Corvallis, OR, 97331, USA.
- Department of Statistics, Oregon State University, Corvallis, OR, USA.
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Huss A, Bachhuber F, Feraudet-Tarisse C, Hiergeist A, Tumani H. Multiple Sclerosis and Clostridium perfringens Epsilon Toxin: Is There a Relationship? Biomedicines 2024; 12:1392. [PMID: 39061966 PMCID: PMC11274216 DOI: 10.3390/biomedicines12071392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/18/2024] [Accepted: 06/20/2024] [Indexed: 07/28/2024] Open
Abstract
Recent research has suggested a link between multiple sclerosis and the gut microbiota. This prospective pilot study aimed to investigate the composition of the gut microbiota in MS patients, the presence of Clostridium perfringens epsilon toxin in the serum of MS patients, and the influence of disease-modifying drugs (DMDs) on epsilon toxin levels and on the microbiota. Epsilon toxin levels in blood were investigated by two methods, a qualitative ELISA and a highly sensitive quantitative ELISA. Neither epsilon toxin nor antibodies against it were detected in the analyzed serum samples. 16S ribosomal RNA sequencing was applied to obtain insights into the composition of the gut microbiota of MS patients. No significant differences in the quantity, diversity, and the relative abundance of fecal microbiota were observed in the gut microbiota of MS patients receiving various DMDs, including teriflunomide, natalizumab, ocrelizumab, and fingolimod, or no therapy. The present study did not provide evidence supporting the hypothesis of a causal relationship between Clostridium perfringens epsilon toxin and multiple sclerosis.
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Affiliation(s)
- André Huss
- Department of Neurology, University Hospital Ulm, 89081 Ulm, Germany; (A.H.); (F.B.)
| | - Franziska Bachhuber
- Department of Neurology, University Hospital Ulm, 89081 Ulm, Germany; (A.H.); (F.B.)
| | - Cécile Feraudet-Tarisse
- CEA, INRAE, Medicines and Healthcare Technologies Department (DMTS), SPI, Paris-Saclay University, 91191 Gif-sur-Yvette, France
| | - Andreas Hiergeist
- Institute of Clinical Microbiology and Hygiene, University Medical Center, 93053 Regensburg, Germany
| | - Hayrettin Tumani
- Department of Neurology, University Hospital Ulm, 89081 Ulm, Germany; (A.H.); (F.B.)
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Semenova N, Garashchenko N, Kolesnikov S, Darenskaya M, Kolesnikova L. Gut Microbiome Interactions with Oxidative Stress: Mechanisms and Consequences for Health. PATHOPHYSIOLOGY 2024; 31:309-330. [PMID: 39051221 PMCID: PMC11270257 DOI: 10.3390/pathophysiology31030023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/17/2024] [Accepted: 06/20/2024] [Indexed: 07/27/2024] Open
Abstract
Understanding how gut flora interacts with oxidative stress has been the subject of significant research in recent years. There is much evidence demonstrating the existence of the microbiome-oxidative stress interaction. However, the biochemical basis of this interaction is still unclear. In this narrative review, possible pathways of the gut microbiota and oxidative stress interaction are presented, among which genetic underpinnings play an important role. Trimethylamine-N-oxide, mitochondria, short-chain fatty acids, and melatonin also appear to play roles. Moreover, the relationship between oxidative stress and the gut microbiome in obesity, metabolic syndrome, chronic ethanol consumption, dietary supplements, and medications is considered. An investigation of the correlation between bacterial community features and OS parameter changes under normal and pathological conditions might provide information for the determination of new research methods. Furthermore, such research could contribute to establishing a foundation for determining the linkers in the microbiome-OS association.
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Affiliation(s)
- Natalya Semenova
- Scientific Centre for Family Health and Human Reproduction Problems, 664003 Irkutsk, Russia; (N.G.); (S.K.); (M.D.); (L.K.)
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Rawani NS, Chan AW, Dursun SM, Baker GB. The Underlying Neurobiological Mechanisms of Psychosis: Focus on Neurotransmission Dysregulation, Neuroinflammation, Oxidative Stress, and Mitochondrial Dysfunction. Antioxidants (Basel) 2024; 13:709. [PMID: 38929148 PMCID: PMC11200831 DOI: 10.3390/antiox13060709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/16/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Psychosis, defined as a set of symptoms that results in a distorted sense of reality, is observed in several psychiatric disorders in addition to schizophrenia. This paper reviews the literature relevant to the underlying neurobiology of psychosis. The dopamine hypothesis has been a major influence in the study of the neurochemistry of psychosis and in development of antipsychotic drugs. However, it became clear early on that other factors must be involved in the dysfunction involved in psychosis. In the current review, it is reported how several of these factors, namely dysregulation of neurotransmitters [dopamine, serotonin, glutamate, and γ-aminobutyric acid (GABA)], neuroinflammation, glia (microglia, astrocytes, and oligodendrocytes), the hypothalamic-pituitary-adrenal axis, the gut microbiome, oxidative stress, and mitochondrial dysfunction contribute to psychosis and interact with one another. Research on psychosis has increased knowledge of the complexity of psychotic disorders. Potential new pharmacotherapies, including combinations of drugs (with pre- and probiotics in some cases) affecting several of the factors mentioned above, have been suggested. Similarly, several putative biomarkers, particularly those related to the immune system, have been proposed. Future research on both pharmacotherapy and biomarkers will require better-designed studies conducted on an all stages of psychotic disorders and must consider confounders such as sex differences and comorbidity.
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Affiliation(s)
| | | | | | - Glen B. Baker
- Neurochemical Research Unit and Bebensee Schizophrenia Research Unit, Department of Psychiatry and Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB T6G 2G3, Canada; (N.S.R.); (A.W.C.); (S.M.D.)
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Raghani N, Postwala H, Shah Y, Chorawala M, Parekh P. From Gut to Brain: Unraveling the Intricate Link Between Microbiome and Stroke. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10295-3. [PMID: 38831225 DOI: 10.1007/s12602-024-10295-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2024] [Indexed: 06/05/2024]
Abstract
Stroke, a neurological disorder, is intricately linked to the gut microbiota, influencing microbial composition and elevating the risk of ischemic stroke. The neuroprotective impact of short-chain fatty acids (SCFAs) derived from dietary fiber fermentation contrasts with the neuroinflammatory effects of lipopolysaccharide (LPS) from gut bacteria. The pivotal role of the gut-brain axis, facilitating bidirectional communication between the gut and the brain, is crucial in maintaining gastrointestinal equilibrium and influencing cognitive functions. An in-depth understanding of the interplay among the gut microbiota, immune system, and neurological outcomes in stroke is imperative for devising innovative preventive and therapeutic approaches. Strategies such as dietary adjustments, probiotics, prebiotics, antibiotics, or fecal transplantation offer promise in modulating stroke outcomes. Nevertheless, comprehensive research is essential to unravel the precise mechanisms governing the gut microbiota's involvement in stroke and to establish effective therapeutic interventions. The initiation of large-scale clinical trials is warranted to assess the safety and efficacy of interventions targeting the gut microbiota in stroke management. Tailored strategies that reinstate eubiosis and foster a healthy gut microbiota hold potential for both stroke prevention and treatment. This review underscores the gut microbiota as a promising therapeutic target in stroke and underscores the need for continued research to delineate its precise role and develop microbiome-based interventions effectively.
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Affiliation(s)
- Neha Raghani
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Ahmedabad, 380009, Gujarat, India
| | - Humzah Postwala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Ahmedabad, 380009, Gujarat, India
| | - Yesha Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Ahmedabad, 380009, Gujarat, India
| | - Mehul Chorawala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Ahmedabad, 380009, Gujarat, India.
| | - Priyajeet Parekh
- AV Pharma LLC, 1545 University Blvd N Ste A, Jacksonville, FL, 32211, USA
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Luo S, Lou F, Yan L, Dong Y, Zhang Y, Liu Y, Ji P, Jin X. Comprehensive analysis of the oral microbiota and metabolome change in patients of burning mouth syndrome with psychiatric symptoms. J Oral Microbiol 2024; 16:2362313. [PMID: 38835338 PMCID: PMC11149574 DOI: 10.1080/20002297.2024.2362313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 05/27/2024] [Indexed: 06/06/2024] Open
Abstract
Background Burning mouth syndrome (BMS) is a chronic idiopathic facial pain with intraoral burning or dysesthesia. BMS patients regularly suffer from anxiety/depression, and the association of psychiatric symptoms with BMS has received considerable attention in recent years. The aims of this study were to investigate the potential interplay between psychiatric symptoms and BMS. Methods Using 16S rRNA sequencing and liquid chromatography-mass spectrometry (LC/MS) to evaluate the oral microbiota and saliva metabolism of 40 BMS patients [including 29 BMS patients with depression or anxiety symptoms (DBMS)] and 40 age matched healthy control (HC). Results The oral microbiota composition in BMS exhibited no significant differences from HC, although DBMS manifested decreased α-diversity relative to HC. Noteworthy was the discernible elevation in the abundance of proinflammatory microorganisms within the oral microbiome of individuals with DBMS. Parallel findings in LC/MS analyses revealed discernible disparities in metabolites between DBMS and HC groups. Principal differential metabolites were notably enriched in amino acid metabolism and lipid metabolism, exhibiting associations with infectious and immunological diseases. Furthermore, the integrated analysis underscores a definitive association between the oral microbiome and metabolism in DBMS. Conclusions This study suggests possible future modalities for better understanding the pathogenesis and personalized treatment plans of BMS.
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Affiliation(s)
- Shihong Luo
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Department of Oral Implantology, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Fangzhi Lou
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Li Yan
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Yunmei Dong
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Yingying Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Yang Liu
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Ping Ji
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Xin Jin
- College of Stomatology, Chongqing Medical University, Chongqing, China
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Xu M, Kiss AJ, Jones JA, McMurray MS, Shi H. Effect of oral tryptamines on the gut microbiome of rats-a preliminary study. PeerJ 2024; 12:e17517. [PMID: 38846751 PMCID: PMC11155674 DOI: 10.7717/peerj.17517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 05/15/2024] [Indexed: 06/09/2024] Open
Abstract
Background Psilocybin and related tryptamines have come into the spotlight in recent years as potential therapeutics for depression. Research on the mechanisms of these effects has historically focused on the direct effects of these drugs on neural processes. However, in addition to such neural effects, alterations in peripheral physiology may also contribute to their therapeutic effects. In particular, substantial support exists for a gut microbiome-mediated pathway for the antidepressant efficacy of other drug classes, but no prior studies have determined the effects of tryptamines on microbiota. Methods To address this gap, in this preliminary study, male Long Evans rats were treated with varying dosages of oral psilocybin (0.2 or 2 mg/kg), norbaeocystin (0.25 or 2.52 mg/kg), or vehicle and their fecal samples were collected 1 week and 3 weeks after exposure for microbiome analysis using integrated 16S ribosomal DNA sequencing to determine gut microbiome composition. Results We found that although treatment with neither psilocybin nor norbaeocystin significantly affected overall microbiome diversity, it did cause significant dose- and time-dependent changes in bacterial abundance at the phylum level, including increases in Verrucomicrobia and Actinobacteria, and decreases in Proteobacteria. Conclusion and Implications These preliminary findings support the idea that psilocybin and other tryptamines may act on the gut microbiome in a dose- and time-dependent manner, potentially identifying a novel peripheral mechanism for their antidepressant activity. The results from this preliminary study also suggest that norbaeocystin may warrant further investigation as a potential antidepressant, given the similarity of its effects to psilocybin.
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Affiliation(s)
- Mengyang Xu
- Biology, Miami University, Oxford, OH, United States
| | - Andor J. Kiss
- Center for Bioinformatics and Functional Genomics, Miami University, Oxford, OH, United States
| | - J. Andrew Jones
- Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, OH, United States
| | | | - Haifei Shi
- Biology, Miami University, Oxford, OH, United States
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Zhou GQ, Wang X, Gao P, Qin TZ, Guo L, Zhang ZW, Huang ZF, Lin JJ, Jing YT, Wang HN, Wang CP, Ding GR. Intestinal microbiota via NLRP3 inflammasome dependent neuronal pyroptosis mediates anxiety-like behaviour in mice exposed to 3.5 GHz radiofrequency radiation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172391. [PMID: 38608899 DOI: 10.1016/j.scitotenv.2024.172391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
The rapid development of 5G communication technology has increased public concern about the potential adverse effects on human health. Till now, the impacts of radiofrequency radiation (RFR) from 5G communication on the central nervous system and gut-brain axis are still unclear. Therefore, we investigated the effects of 3.5 GHz (a frequency commonly used in 5G communication) RFR on neurobehavior, gut microbiota, and gut-brain axis metabolites in mice. The results showed that exposure to 3.5 GHz RFR at 50 W/m2 for 1 h over 35 d induced anxiety-like behaviour in mice, accompanied by NLRP3-dependent neuronal pyroptosis in CA3 region of the dorsal hippocampus. In addition, the microbial composition was widely divergent between the sham and RFR groups. 3.5 GHz RFR also caused changes in metabolites of feces, serum, and brain. The differential metabolites were mainly enriched in glycerophospholipid metabolism, tryptophan metabolism, and arginine biosynthesis. Further correlation analysis showed that gut microbiota dysbiosis was associated with differential metabolites. Based on the above results, we speculate that dysfunctional intestinal flora and metabolites may be involved in RFR-induced anxiety-like behaviour in mice through neuronal pyroptosis in the brain. The findings provide novel insights into the mechanism of 5G RFR-induced neurotoxicity.
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Affiliation(s)
- Gui-Qiang Zhou
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; School of Public Health, Shandong Second Medical University, Weifang, China
| | - Xing Wang
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Peng Gao
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Tong-Zhou Qin
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Ling Guo
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Zhao-Wen Zhang
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Zhi-Fei Huang
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; School of Public Health, Shandong Second Medical University, Weifang, China
| | - Jia-Jin Lin
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Yun-Tao Jing
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Hao-Nan Wang
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China
| | - Chun-Ping Wang
- School of Public Health, Shandong Second Medical University, Weifang, China.
| | - Gui-Rong Ding
- Department of Radiation Protection Medicine, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an, China; Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an, China.
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23
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Jia X, Wang Q, Liu M, Ding JY. The interplay between gut microbiota and the brain-gut axis in Parkinson's disease treatment. Front Neurol 2024; 15:1415463. [PMID: 38867886 PMCID: PMC11168434 DOI: 10.3389/fneur.2024.1415463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 05/01/2024] [Indexed: 06/14/2024] Open
Abstract
This study delves into the pivotal role of the gut microbiota and the brain-gut axis in Parkinson's Disease (PD), a neurodegenerative disorder with significant motor and non-motor implications. It posits that disruptions in gut microbiota-dysbiosis-and alterations in the brain-gut axis contribute to PD's pathogenesis. Our findings highlight the potential of the gastrointestinal system's early involvement in PD, suggested by the precedence of gastrointestinal symptoms before motor symptoms emerge. This observation implies a possible gut-originated disease pathway. The analysis demonstrates that dysbiosis in PD patients leads to increased intestinal permeability and systemic inflammation, which in turn exacerbates neuroinflammation and neurodegeneration. Such insights into the interaction between gut microbiota and the brain-gut axis not only elucidate PD's underlying mechanisms but also pave the way for novel therapeutic interventions. We propose targeted treatment strategies, including dietary modifications and fecal microbiota transplantation, aimed at modulating the gut microbiota. These approaches hold promise for augmenting current PD treatment modalities by alleviating both motor and non-motor symptoms, thereby potentially improving patient quality of life. This research underscores the significance of the gut microbiota in the progression and treatment of PD, advocating for an integrated, multidisciplinary approach to develop personalized, efficacious management strategies for PD patients, combining insights from neurology, microbiology, and nutritional science.
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Affiliation(s)
- Xi Jia
- First Ward of Neurology Department, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
| | - Qin Wang
- Department of Rehabilitation, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
| | - Meilingzi Liu
- Third Ward of Neurology Department, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
| | - Jia-yuan Ding
- Second Ward of Gastroenterology Department, Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
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24
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Lee J, Park SJ, Choi S, Chang J, Park YJ, Jeong S, Son JS, Lee G, Ahn JC, Kim JA, Park SM. Antibiotic exposure and depression incidence: A cohort study of the Korean population. Psychiatry Res 2024; 339:115992. [PMID: 38875919 DOI: 10.1016/j.psychres.2024.115992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/11/2024] [Accepted: 05/28/2024] [Indexed: 06/16/2024]
Abstract
Recent research highlights the crucial role of the gut-brain axis in understanding depression etiologies. While burgeoning studies suggest an association between disruptions in gut microbiota and the development of depression, limited longitudinal studies have investigated this link. To address this gap, we conducted a retrospective cohort study using National Health Insurance Service-Health Screening Cohort (NHIS-HEALS) data in South Korea, involving 199,144 individuals aged 40-79. We examined the impact of cumulative antibiotic exposure (2004-2008) on subsequent depression incidence (2009-2013) by conducting Cox proportional hazards regressions. Our findings show an increasing depression risk with extended antibiotic exposure after adjusting for comorbidities and behavioral covariates. A broader antibiotic spectrum was associated with a higher depression risk. These trends persisted after adjusting for the original antibiotic indications. In conclusion, our study highlights the duration-dependent association between antibiotic exposure and increased depression risk, offering insights into depression etiologies and relevant novel therapeutic tools, and advocating for heightened antibiotic stewardship considering their impact on mental health.
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Affiliation(s)
- Jaewon Lee
- Department of Psychiatry, University of Rochester, Rochester, NY, USA
| | - Sun Jae Park
- Department of Biomedical Sciences, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Seulggie Choi
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Jooyoung Chang
- Department of Biomedical Sciences, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Young Jun Park
- Medical Research Center, Genomic Medicine Institute, Seoul National University, Seoul, South Korea
| | - Seogsong Jeong
- Department of Biomedical Informatics, Korea University College of Medicine, Seoul, South Korea
| | - Joung Sik Son
- Department of Internal Medicine, Hanyang University Hospital, Seoul, South Korea
| | - Gyeongsil Lee
- Division of Family Medicine, Life Clinic, Seoul, South Korea; KS Healthlink Institute, Seoul, South Korea
| | - Joseph C Ahn
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, USA
| | - Jihoon Andrew Kim
- Department of Psychiatry, Columbia University, New York, NY, USA; Department of Psychiatry, Weill Cornell Medicine, New York, NY, USA
| | - Sang Min Park
- Department of Biomedical Sciences, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea; Department of Family Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea.
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25
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Pimenta AI, Bernardino RM, Pereira IAC. Role of sulfidogenic members of the gut microbiota in human disease. Adv Microb Physiol 2024; 85:145-200. [PMID: 39059820 DOI: 10.1016/bs.ampbs.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
The human gut flora comprises a dynamic network of bacterial species that coexist in a finely tuned equilibrium. The interaction with intestinal bacteria profoundly influences the host's development, metabolism, immunity, and overall health. Furthermore, dysbiosis, a disruption of the gut microbiota, can induce a variety of diseases, not exclusively associated with the intestinal tract. The increased consumption of animal protein, high-fat and high-sugar diets in Western countries has been implicated in the rise of chronic and inflammatory illnesses associated with dysbiosis. In particular, this diet leads to the overgrowth of sulfide-producing bacteria, known as sulfidogenic bacteria, which has been linked to inflammatory bowel diseases and colorectal cancer, among other disorders. Sulfidogenic bacteria include sulfate-reducing bacteria (Desulfovibrio spp.) and Bilophila wadsworthia among others, which convert organic and inorganic sulfur compounds to sulfide through the dissimilatory sulfite reduction pathway. At high concentrations, sulfide is cytotoxic and disrupts the integrity of the intestinal epithelium and mucus barrier, triggering inflammation. Besides producing sulfide, B. wadsworthia has revealed significant pathogenic potential, demonstrated in the ability to cause infection, adhere to intestinal cells, promote inflammation, and compromise the integrity of the colonic mucus layer. This review delves into the mechanisms by which taurine and sulfide-driven gut dysbiosis contribute to the pathogenesis of sulfidogenic bacteria, and discusses the role of these gut microbes, particularly B. wadsworthia, in human diseases.
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Affiliation(s)
- Andreia I Pimenta
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Raquel M Bernardino
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Inês A C Pereira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal.
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26
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Zhou L, Tang L, Zhou C, Wen SW, Krewski D, Xie RH. Association of maternal postpartum depression symptoms with infant neurodevelopment and gut microbiota. Front Psychiatry 2024; 15:1385229. [PMID: 38835546 PMCID: PMC11148360 DOI: 10.3389/fpsyt.2024.1385229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024] Open
Abstract
Introduction Understanding the mechanisms underlying maternal postpartum depression (PPD) and its effects on offspring development is crucial. However, research on the association between maternal PPD, gut microbiota, and offspring neurodevelopment remains limited. This study aimed to examine the association of maternal PPD symptoms with early gut microbiome, gut metabolome, and neurodevelopment in infants at 6 months. Methods Maternal PPD symptoms were assessed using the Edinburgh Postpartum Depression Scale (EPDS) at 42 days postpartum. Infants stool samples collected at 42 days after birth were analyzed using 16S rRNA sequencing and liquid chromatography-mass spectrometry (LC-MS) detection. Infant neurodevelopment was measured at 6 months using the Ages and Stages Questionnaire, Third Edition (ASQ-3). Correlations between gut microbiota, metabolites and neurodevelopment were identified through co-occurrence network analysis. Finally, mediation analyses were conducted to determine potential causal pathways. Results A total of 101 mother-infant dyads were included in the final analysis. Infants born to mothers with PPD symptoms at 42 days postpartum had lower neurodevelopmental scores at 6 months. These infants also had increased alpha diversity of gut microbiota and were abundant in Veillonella and Finegoldia, while depleted abundance of Bifidobacterium, Dialister, Cronobacter and Megasphaera. Furthermore, alterations were observed in metabolite levels linked to the Alanine, aspartate, and glutamate metabolic pathway, primarily characterized by decreases in N-Acetyl-L-aspartic acid, L-Aspartic acid, and L-Asparagine. Co-occurrence network and mediation analyses revealed that N-Acetyl-L-aspartic acid and L-Aspartic acid levels mediated the relationship between maternal PPD symptoms and the development of infant problem-solving skills. Conclusions Maternal PPD symptoms are associated with alterations in the gut microbiota and neurodevelopment in infants. This study provides new insights into potential early intervention for infants whose mother experienced PPD. Further research is warranted to elucidate the biological mechanisms underlying these associations.
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Affiliation(s)
- Lepeng Zhou
- School of Nursing, Southern Medical University, Guangzhou, Guangdong, China
| | - Linghong Tang
- School of Nursing, Southern Medical University, Guangzhou, Guangdong, China
| | - Chuhui Zhou
- School of Nursing, Southern Medical University, Guangzhou, Guangdong, China
- Women and Children Medical Research Center, Foshan Women and Children Hospital, Foshan, Guangdong, China
| | - Shi Wu Wen
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
- Department of Obstetrics and Gynecology, University of Ottawa, Ottawa, ON, Canada
| | - Daniel Krewski
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
- Risk Science International, Ottawa, ON, Canada
| | - Ri-Hua Xie
- School of Nursing, Southern Medical University, Guangzhou, Guangdong, China
- Women and Children Medical Research Center, Foshan Women and Children Hospital, Foshan, Guangdong, China
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27
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Krueger Q, Phippen B, Reitzel A. Antibiotics alter development and gene expression in the model cnidarian Nematostella vectensis. PeerJ 2024; 12:e17349. [PMID: 38784394 PMCID: PMC11114123 DOI: 10.7717/peerj.17349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 04/17/2024] [Indexed: 05/25/2024] Open
Abstract
Background Antibiotics are commonly used for controlling microbial growth in diseased organisms. However, antibiotic treatments during early developmental stages can have negative impacts on development and physiology that could offset the positive effects of reducing or eliminating pathogens. Similarly, antibiotics can shift the microbial community due to differential effectiveness on resistant and susceptible bacteria. Though antibiotic application does not typically result in mortality of marine invertebrates, little is known about the developmental and transcriptional effects. These sublethal effects could reduce the fitness of the host organism and lead to negative changes after removal of the antibiotics. Here, we quantify the impact of antibiotic treatment on development, gene expression, and the culturable bacterial community of a model cnidarian, Nematostella vectensis. Methods Ampicillin, streptomycin, rifampicin, and neomycin were compared individually at two concentrations, 50 and 200 µg mL-1, and in combination at 50 µg mL-1 each, to assess their impact on N. vectensis. First, we determined the impact antibiotics have on larval development. Next Amplicon 16S rDNA gene sequencing was used to compare the culturable bacteria that persist after antibiotic treatment to determine how these treatments may differentially select against the native microbiome. Lastly, we determined how acute (3-day) and chronic (8-day) antibiotic treatments impact gene expression of adult anemones. Results Under most exposures, the time of larval settlement extended as the concentration of antibiotics increased and had the longest delay of 3 days in the combination treatment. Culturable bacteria persisted through a majority of exposures where we identified 359 amplicon sequence variants (ASVs). The largest proportion of bacteria belonged to Gammaproteobacteria, and the most common ASVs were identified as Microbacterium and Vibrio. The acute antibiotic exposure resulted in differential expression of genes related to epigenetic mechanisms and neural processes, while constant application resulted in upregulation of chaperones and downregulation of mitochondrial genes when compared to controls. Gene Ontology analyses identified overall depletion of terms related to development and metabolism in both antibiotic treatments. Discussion Antibiotics resulted in a significant increase to settlement time of N. vectensis larvae. Culturable bacterial species after antibiotic treatments were taxonomically diverse. Additionally, the transcriptional effects of antibiotics, and after their removal result in significant differences in gene expression that may impact the physiology of the anemone, which may include removal of bacterial signaling on anemone gene expression. Our research suggests that impacts of antibiotics beyond the reduction of bacteria may be important to consider when they are applied to aquatic invertebrates including reef building corals.
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Affiliation(s)
- Quinton Krueger
- Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, United States of America
- Computational Intelligence to Predict Health and Environmental Risks (CIPHER) Center, University of North Carolina at Charlotte, Charlotte, NC, United States of America
| | - Britney Phippen
- Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, United States of America
| | - Adam Reitzel
- Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, United States of America
- Computational Intelligence to Predict Health and Environmental Risks (CIPHER) Center, University of North Carolina at Charlotte, Charlotte, NC, United States of America
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28
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Fernández-Calvet A, Matilla-Cuenca L, Izco M, Navarro S, Serrano M, Ventura S, Blesa J, Herráiz M, Alkorta-Aranburu G, Galera S, Ruiz de Los Mozos I, Mansego ML, Toledo-Arana A, Alvarez-Erviti L, Valle J. Gut microbiota produces biofilm-associated amyloids with potential for neurodegeneration. Nat Commun 2024; 15:4150. [PMID: 38755164 PMCID: PMC11099085 DOI: 10.1038/s41467-024-48309-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/26/2024] [Indexed: 05/18/2024] Open
Abstract
Age-related neurodegenerative diseases involving amyloid aggregation remain one of the biggest challenges of modern medicine. Alterations in the gastrointestinal microbiome play an active role in the aetiology of neurological disorders. Here, we dissect the amyloidogenic properties of biofilm-associated proteins (BAPs) of the gut microbiota and their implications for synucleinopathies. We demonstrate that BAPs are naturally assembled as amyloid-like fibrils in insoluble fractions isolated from the human gut microbiota. We show that BAP genes are part of the accessory genomes, revealing microbiome variability. Remarkably, the abundance of certain BAP genes in the gut microbiome is correlated with Parkinson's disease (PD) incidence. Using cultured dopaminergic neurons and Caenorhabditis elegans models, we report that BAP-derived amyloids induce α-synuclein aggregation. Our results show that the chaperone-mediated autophagy is compromised by BAP amyloids. Indeed, inoculation of BAP fibrils into the brains of wild-type mice promote key pathological features of PD. Therefore, our findings establish the use of BAP amyloids as potential targets and biomarkers of α-synucleinopathies.
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Affiliation(s)
- Ariadna Fernández-Calvet
- Instituto de Agrobiotecnología (IDAB). CSIC-Gobierno de Navarra, Avenida Pamplona 123, Mutilva, 31192, Spain
| | - Leticia Matilla-Cuenca
- Instituto de Agrobiotecnología (IDAB). CSIC-Gobierno de Navarra, Avenida Pamplona 123, Mutilva, 31192, Spain
| | - María Izco
- Laboratory of Molecular Neurobiology, Center for Biomedical Research of La Rioja, Logroño, Spain
| | - Susanna Navarro
- Institut de Biotecnologia i de Biomedicina and Departament de Bioquimica i Biologia Molecular, Universitat Autónoma de Barcelona, Bellaterra, Spain
| | - Miriam Serrano
- Instituto de Agrobiotecnología (IDAB). CSIC-Gobierno de Navarra, Avenida Pamplona 123, Mutilva, 31192, Spain
| | - Salvador Ventura
- Institut de Biotecnologia i de Biomedicina and Departament de Bioquimica i Biologia Molecular, Universitat Autónoma de Barcelona, Bellaterra, Spain
| | - Javier Blesa
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria, HM Hospitales, Madrid, Spain
| | - Maite Herráiz
- Department of Gastroenterology, Clínica Universitaria and Medical School, University of Navarra, Navarra, Spain
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | - Gorka Alkorta-Aranburu
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
- CIMA LAB Diagnostics, University of Navarra, Pamplona, Spain
| | - Sergio Galera
- Department of Personalized Medicine, NASERTIC, Government of Navarra, Pamplona, Spain
| | | | - María Luisa Mansego
- Translational Bioinformatics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
| | - Alejandro Toledo-Arana
- Instituto de Agrobiotecnología (IDAB). CSIC-Gobierno de Navarra, Avenida Pamplona 123, Mutilva, 31192, Spain
| | - Lydia Alvarez-Erviti
- Laboratory of Molecular Neurobiology, Center for Biomedical Research of La Rioja, Logroño, Spain
| | - Jaione Valle
- Instituto de Agrobiotecnología (IDAB). CSIC-Gobierno de Navarra, Avenida Pamplona 123, Mutilva, 31192, Spain.
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29
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Wu Y, Fan H, Feng Y, Yang J, Cen X, Li W. Unveiling the gut microbiota and metabolite profiles in guinea pigs with form deprivation myopia through 16S rRNA gene sequencing and untargeted metabolomics. Heliyon 2024; 10:e30491. [PMID: 38756593 PMCID: PMC11096930 DOI: 10.1016/j.heliyon.2024.e30491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/18/2024] Open
Abstract
Aim The aim of this study was to confirm the presence of the form deprivation myopia (FDM) guinea pig eye-gut axis and investigate the relationship between serum vasoactive intestinal peptide (VIP), lipopolysaccharides (LPS), specific gut microbiota and their metabolites. Method 20 specific-pathogen-free (SPF) guinea pigs were divided into the FDM and the control(Con) group. Following model induction, serum levels of VIP and LPS were quantified. A combination of 16S ribosomal ribosomal Ribonucleic Acid (rRNA) gene sequencing, non-targeted metabolomics and bioinformatics analysis were employed to identify disparities in gut microbiota and metabolites between the two groups of guinea pigs. Result Compared to the control group, FDM guinea pigs exhibited a significant trend towards myopia, along with significantly elevated concentrations of LPS and VIP (p < 0.0001). Furthermore, Ruminococcus_albus emerged as the predominant bacterial community enriched in FDM (p < 0.05), and demonstrated positive correlations with 10 metabolites, including l-Glutamic acid, Additionally, Ruminococcus_albus exhibited positive correlations with VIP and LPS levels (p < 0.05). Conclusion The findings suggest that the Ruminococcus_Albus and glutamate metabolic pathways play a significant role in myopia development, leading to concurrent alterations in serum VIP and LPS levels in FDM guinea pigs. This underscores the potential of specific gut microbiota and their metabolites as pivotal biomarkers involved in the pathogenesis of myopia.
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Affiliation(s)
- Yajun Wu
- Aier Academy of Ophthalmology, Central South University, Changsha, Hunan, 410000, China
- Department of Ophthalmology, Shanghai Aier Eye Hospital, Shanghai, 200235, China
- Shanghai Aier Eye Institute, Shanghai, 200235, China
| | - Hua Fan
- Shanxi Aier Eye Hospital, Taiyuan, Shanxi, 030000, China
| | - Yuliang Feng
- Aier Academy of Ophthalmology, Central South University, Changsha, Hunan, 410000, China
- Department of Ophthalmology, Shanghai Aier Eye Hospital, Shanghai, 200235, China
- Shanghai Aier Eye Institute, Shanghai, 200235, China
| | - Jiasong Yang
- Aier Academy of Ophthalmology, Central South University, Changsha, Hunan, 410000, China
- Department of Ophthalmology, Shanghai Aier Eye Hospital, Shanghai, 200235, China
- Shanghai Aier Eye Institute, Shanghai, 200235, China
| | - Xiaobo Cen
- WestChina-Frontier PharmaTech Co., Ltd, Chengdu, Sichuan, 610000, China
| | - Wensheng Li
- Aier Academy of Ophthalmology, Central South University, Changsha, Hunan, 410000, China
- Department of Ophthalmology, Shanghai Aier Eye Hospital, Shanghai, 200235, China
- Shanghai Aier Eye Institute, Shanghai, 200235, China
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30
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Louka E, Koumandou VL. The Emerging Role of Human Gut Bacteria Extracellular Vesicles in Mental Disorders and Developing New Pharmaceuticals. Curr Issues Mol Biol 2024; 46:4751-4767. [PMID: 38785554 PMCID: PMC11120620 DOI: 10.3390/cimb46050286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024] Open
Abstract
In recent years, further evidence has emerged regarding the involvement of extracellular vesicles in various human physiopathological conditions such as Alzheimer's disease, Parkinson's disease, irritable bowel syndrome, and mental disorders. The biogenesis and cargo of such vesicles may reveal their impact on human health nd disease and set the underpinnings for the development of novel chemical compounds and pharmaceuticals. In this review, we examine the link between bacteria-derived exosomes in the gastrointestinal tract and mental disorders, such as depression and anxiety disorders. Crucially, we focus on whether changes in the gut environment affect the human mental state or the other way around. Furthermore, the possibility of handling bacteria-derived exosomes as vectors of chemicals to treat such conditions is examined.
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Affiliation(s)
- Effrosyni Louka
- Genetics Laboratory, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Vassiliki Lila Koumandou
- Genetics Laboratory, Department of Biotechnology, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
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31
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Branković M, Gmizić T, Dukić M, Zdravković M, Daskalović B, Mrda D, Nikolić N, Brajković M, Gojgić M, Lalatović J, Kralj Đ, Pantić I, Vojnović M, Milovanović T, Đurašević S, Todorović Z. Therapeutic Potential of Palmitoylethanolamide in Gastrointestinal Disorders. Antioxidants (Basel) 2024; 13:600. [PMID: 38790705 PMCID: PMC11117950 DOI: 10.3390/antiox13050600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Palmitoylethanolamide (PEA) is an endocannabinoid-like bioactive lipid mediator belonging to the family of N-acylethanolamines, most abundantly found in peanuts and egg yolk. When the gastrointestinal (GI) effects of PEA are discussed, it must be pointed out that it affects intestinal motility but also modulates gut microbiota. This is due to anti-inflammatory, antioxidant, analgesic, antimicrobial, and immunomodulatory features. Additionally, PEA has shown beneficial effects in several GI diseases, particularly irritable bowel syndrome and inflammatory bowel diseases, as various studies have shown, and it is important to emphasize its relative lack of toxicity, even at high dosages. Unfortunately, there is not enough endogenous PEA to treat disturbed gut homeostasis, even though it is produced in the GI tract in response to inflammatory stimuli, so exogenous intake is mandatory to achieve homeostasis. Intake of PEA could be through animal and/or vegetable food, but bearing in mind that a high dosage is needed to achieve a therapeutic effect, it must be compensated through dietary supplements. There are still open questions pending to be answered, so further studies investigating PEA's effects and mechanisms of action, especially in humans, are crucial to implementing PEA in everyday clinical practice.
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Affiliation(s)
- Marija Branković
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Tijana Gmizić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
| | - Marija Dukić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
| | - Marija Zdravković
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | | | - Davor Mrda
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
| | - Novica Nikolić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
| | - Milica Brajković
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Milan Gojgić
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
| | - Jovana Lalatović
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
| | - Đorđe Kralj
- University Hospital Medical Center Zvezdara, 11000 Belgrade, Serbia;
| | - Ivana Pantić
- Clinic of Gastroenterology and Hepatology, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (I.P.); (M.V.)
| | - Marko Vojnović
- Clinic of Gastroenterology and Hepatology, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (I.P.); (M.V.)
| | - Tamara Milovanović
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
- Clinic of Gastroenterology and Hepatology, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (I.P.); (M.V.)
| | - Siniša Đurašević
- Department for Comparative Physiology and Ecophysiology, Institute for Physiology and Biochemistry Ivan Đaja, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia;
| | - Zoran Todorović
- University Hospital Medical Center Bežanijska Kosa, 11000 Belgrade, Serbia; (T.G.); (M.D.); (M.Z.); (D.M.); (N.N.); (M.B.); (J.L.); (Z.T.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
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Xiao J. Role of the Gut Microbiota-Brain Axis in Brain Damage in Preterm Infants. ACS Pharmacol Transl Sci 2024; 7:1197-1204. [PMID: 38751622 PMCID: PMC11091980 DOI: 10.1021/acsptsci.3c00369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/29/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024]
Abstract
The greatest repository of microbes in the human body, the intestinal microbiome, is involved in neurological development, aging, and brain illnesses such as white matter injury (WMI) in preterm newborns. Intestinal microorganisms constitute a microbial gut-brain axis that serves as a crucial conduit for communication between the gut and the nervous system. This axis controls inflammatory cytokines, which in turn influence the differentiation of premyelinating oligodendrocytes (pre-OLs) and influence the incidence of WMI in premature newborns through the metabolites generated by gut microbes. Here, we describe the effects of white matter injury (WMI) on intestinal dysbiosis and gut dysfunction and explain the most recent research findings on the gut-brain axis in both humans and animals. We also emphasize the delicate relationship that exists between the microbiota and the brain following acute brain injury. The role that the intestinal microflora plays in influencing host metabolism, the immune system, brain health, and the course of disease is becoming increasingly clear, but there are still gaps in the field of WMI treatment. Thus, this review demonstrates the function of the gut microflora-brain axis in WMI and elucidates the possible mechanisms underlying the communication between gut bacteria and the developing brain via the gut-brain axis, potentially opening up new avenues for microbial-based intervention and treatment for preterm WMI.
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Affiliation(s)
- Jie Xiao
- Department
of Pathology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, 435000 Huangshi, P. R. China
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33
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Liu D, Chen D, Xiao J, Wang W, Zhang LJ, Peng H, Han C, Yao H. High-altitude-induced alterations in intestinal microbiota. Front Microbiol 2024; 15:1369627. [PMID: 38784803 PMCID: PMC11111974 DOI: 10.3389/fmicb.2024.1369627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
In high-altitude environments characterized by low pressure and oxygen levels, the intestinal microbiota undergoes significant alterations. Whether individuals are subjected to prolonged exposure or acute altitude changes, these conditions lead to shifts in both the diversity and abundance of intestinal microbiota and changes in their composition. While these alterations represent adaptations to high-altitude conditions, they may also pose health risks through certain mechanisms. Changes in the intestinal microbiota induced by high altitudes can compromise the integrity of the intestinal mucosal barrier, resulting in gastrointestinal dysfunction and an increased susceptibility to acute mountain sickness (AMS). Moreover, alterations in the intestinal microbiota have been implicated in the induction or exacerbation of chronic heart failure. Targeted modulation of the intestinal microbiota holds promise in mitigating high-altitude-related cardiac damage. Dietary interventions, such as adopting a high-carbohydrate, high-fiber, low-protein, and low-fat diet, can help regulate the effects of intestinal microbiota and their metabolic byproducts on intestinal health. Additionally, supplementation with probiotics, either through dietary sources or medications, offers a means of modulating the composition of the intestinal microbiota. These interventions may offer beneficial effects in preventing and alleviating AMS following acute exposure to high altitudes.
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Affiliation(s)
- Dan Liu
- Department of Endocrinology, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
| | - Dan Chen
- Department of Hematology and Hematopoietic Stem Cell Transplantation Center, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
| | - Jian Xiao
- Department of Endocrinology, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
| | - Wei Wang
- Department of Endocrinology, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
| | - Li-Juan Zhang
- Department of Endocrinology, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
| | - Hui Peng
- Department of Endocrinology, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
| | - Chuan Han
- Department of Endocrinology, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
| | - Hao Yao
- Department of Hematology and Hematopoietic Stem Cell Transplantation Center, General Hospital of the Chinese People’s Liberation Army Western Theater, Chengdu, Sichuan, China
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Tzitiridou-Chatzopoulou M, Kountouras J, Zournatzidou G. The Potential Impact of the Gut Microbiota on Neonatal Brain Development and Adverse Health Outcomes. CHILDREN (BASEL, SWITZERLAND) 2024; 11:552. [PMID: 38790548 PMCID: PMC11119242 DOI: 10.3390/children11050552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024]
Abstract
Over the past decade, microbiome research has significantly expanded in both scope and volume, leading to the development of new models and treatments targeting the gut-brain axis to mitigate the effects of various disorders. Related research suggests that interventions during the critical period from birth to three years old may yield the greatest benefits. Investigating the substantial link between the gut and brain during this crucial developmental phase raises fundamental issues about the role of microorganisms in human health and brain development. This underscores the importance of focusing on the prevention rather than the treatment of neurodevelopmental and neuropsychiatric disorders. The present review examines the gut microbiota from birth to age 3, with a particular focus on its potential relationship with neurodevelopment. This review emphasizes the immunological mechanisms underlying this relationship. Additionally, the study investigates the impact of the microbiome on cognitive development and neurobehavioral issues such as anxiety and autism. Importantly, it highlights the need to integrate mechanistic studies of animal models with epidemiological research across diverse cultures to better understand the role of a healthy microbiome in early life and the implications of dysbiosis. Furthermore, this review summarizes factors contributing to the transmission of gut microbiome-targeted therapies and their effects on neurodevelopment. Recent studies on environmental toxins known to impact neurodevelopment are also reviewed, exploring whether the microbiota may mitigate or modulate these effects.
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Affiliation(s)
| | - Jannis Kountouras
- Second Medical Clinic, School of Medicine, Ippokration Hospital, Aristotle University of Thessaloniki, 54 642 Thessaloniki, Greece;
| | - Georgia Zournatzidou
- Department of Business Administration, University of Western Macedonia, 50 100 Kozani, Greece
- Department of Accounting and Finance, Hellenic Mediterranean University, 71 410 Heraklion, Greece
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Wang Q, Liu P, Peng J, Zhao B, Cai J. Postbiotic properties of exopolysaccharide produced by Levilactobacillus brevis M-10 isolated from natural fermented sour porridge through in vitro simulated digestion and fermentation. J Food Sci 2024; 89:3110-3128. [PMID: 38591339 DOI: 10.1111/1750-3841.17070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/10/2024]
Abstract
The simulated digestion and fermentation characteristics in vitro of exopolysaccharide (EPS) of Levilactobacillus brevis M-10 were studied to evaluate its postbiotic properties. The simulated digestion results showed that EPS could not be degraded in saliva but could be very slightly degraded in gastric juice and could be degraded in intestinal juice. The results of simulated fermentation demonstrated that EPS could lower the intestine pH and be utilized by gut microbes to produce short-chain fatty acids such as propionic acid and butyric acid. Meanwhile, EPS significantly raised the diversity of human gut microbiota, and the relative abundances of Phascolarctobacterium were significantly increased, whereas Fusobacterium and Morganella significantly decreased. In conclusion, EPS from L. brevis M-10 was a good postbiotic as inulin. This was the first report about EPS as the postbiotic of L. brevis M-10 screened from broomcorn millet sour porridge in northwestern Shanxi Province, China.
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Affiliation(s)
- Qi Wang
- School of Life Science, Shanxi University, Taiyuan, Shanxi, China
| | - Pengfan Liu
- Jiangxi Lidu Liquor Company Limited, Nanchang, Jiangxi, China
| | - Jiawei Peng
- School of Life Science, Shanxi University, Taiyuan, Shanxi, China
| | - Bin Zhao
- Drug Safety Evaluation Center, China Institute for Radiation Protection, Taiyuan, Shanxi, China
| | - Jin Cai
- Institute of Applied Chemistry, Shanxi University, Taiyuan, Shanxi, China
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Kountouras J, Boziki M, Kazakos E, Theotokis P, Kesidou E, Nella M, Bakirtzis C, Karafoulidou E, Vardaka E, Mouratidou MC, Kyrailidi F, Tzitiridou-Chatzopoulou M, Orovou E, Giartza-Taxidou E, Deretzi G, Grigoriadis N, Doulberis M. Impact of Helicobacter pylori and metabolic syndrome on mast cell activation-related pathophysiology and neurodegeneration. Neurochem Int 2024; 175:105724. [PMID: 38508416 DOI: 10.1016/j.neuint.2024.105724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/03/2024] [Accepted: 03/17/2024] [Indexed: 03/22/2024]
Abstract
Both Helicobacter pylori (H. pylori) infection and metabolic syndrome (MetS) are highly prevalent worldwide. The emergence of relevant research suggesting a pathogenic linkage between H. pylori infection and MetS-related cardio-cerebrovascular diseases and neurodegenerative disorders, particularly through mechanisms involving brain pericyte deficiency, hyperhomocysteinemia, hyperfibrinogenemia, elevated lipoprotein-a, galectin-3 overexpression, atrial fibrillation, and gut dysbiosis, has raised stimulating questions regarding their pathophysiology and its translational implications for clinicians. An additional stimulating aspect refers to H. pylori and MetS-related activation of innate immune cells, mast cells (MC), which is an important, often early, event in systemic inflammatory pathologies and related brain disorders. Synoptically, MC degranulation may play a role in the pathogenesis of H. pylori and MetS-related obesity, adipokine effects, dyslipidemia, diabetes mellitus, insulin resistance, arterial hypertension, vascular dysfunction and arterial stiffness, an early indicator of atherosclerosis associated with cardio-cerebrovascular and neurodegenerative disorders. Meningeal MC can be activated by triggers including stress and toxins resulting in vascular changes and neurodegeneration. Likewise, H.pylori and MetS-related MC activation is linked with: (a) vasculitis and thromboembolic events that increase the risk of cardio-cerebrovascular and neurodegenerative disorders, and (b) gut dysbiosis-associated neurodegeneration, whereas modulation of gut microbiota and MC activation may promote neuroprotection. This narrative review investigates the intricate relationship between H. pylori infection, MetS, MC activation, and their collective impact on pathophysiological processes linked to neurodegeneration. Through a comprehensive search of current literature, we elucidate the mechanisms through which H. pylori and MetS contribute to MC activation, subsequently triggering cascades of inflammatory responses. This highlights the role of MC as key mediators in the pathogenesis of cardio-cerebrovascular and neurodegenerative disorders, emphasizing their involvement in neuroinflammation, vascular dysfunction and, ultimately, neuronal damage. Although further research is warranted, we provide a novel perspective on the pathophysiology and management of brain disorders by exploring potential therapeutic strategies targeting H. pylori eradication, MetS management, and modulation of MC to mitigate neurodegeneration risk while promoting neuroprotection.
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Affiliation(s)
- Jannis Kountouras
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece.
| | - Marina Boziki
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Evangelos Kazakos
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; School of Healthcare Sciences, Midwifery Department, University of West Macedonia, Koila, Kozani, 50100, Macedonia, Greece
| | - Paschalis Theotokis
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Evangelia Kesidou
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Maria Nella
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Christos Bakirtzis
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Eleni Karafoulidou
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Elisabeth Vardaka
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, Alexander Campus, 57400, Macedonia, Greece
| | - Maria C Mouratidou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece
| | - Foteini Kyrailidi
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece
| | - Maria Tzitiridou-Chatzopoulou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; School of Healthcare Sciences, Midwifery Department, University of West Macedonia, Koila, Kozani, 50100, Macedonia, Greece
| | - Eirini Orovou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; School of Healthcare Sciences, Midwifery Department, University of West Macedonia, Koila, Kozani, 50100, Macedonia, Greece
| | - Evaggelia Giartza-Taxidou
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece
| | - Georgia Deretzi
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; Department of Neurology, Papageorgiou General Hospital, Thessaloniki, Macedonia, Greece
| | - Nikolaos Grigoriadis
- Laboratory of Experimental Neurology and Neuroimmunology and the Multiple Sclerosis Center, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Michael Doulberis
- Second Medical Clinic, School of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, 54642, Thessaloniki, Macedonia, Greece; Gastroklinik, Private Gastroenterological Practice, 8810, Horgen, Switzerland; Division of Gastroenterology and Hepatology, Medical University Department, Kantonsspital Aarau, 5001, Aarau, Switzerland
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Zhang N, Li J, Dong Z, Hu Y, Zhong Z, Gong Q, Kuang W. The digestion and dietary carbohydrate pathway contains 100% gene mutations enrichment among 117 patients with major depressive disorder. Front Psychiatry 2024; 15:1362612. [PMID: 38742130 PMCID: PMC11089147 DOI: 10.3389/fpsyt.2024.1362612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 04/03/2024] [Indexed: 05/16/2024] Open
Abstract
Introduction Major depressive disorder (MDD) is partially inheritable while its mechanism is still uncertain. Methods This cross-sectional study focused on gene pathways as a whole rather than polymorphisms of single genes. Deep sequencing and gene enrichment analysis based on pathways in Reactome database were obtained to reveal gene mutations. Results A total of 117 patients with MDD and 78 healthy controls were enrolled. The Digestion and Dietary Carbohydrate pathway (Carbohydrate pathway) was determined to contain 100% mutations in patients with MDD and 0 mutation in matched healthy controls. Discussion Findings revealed in the current study enable a better understanding of gene pathways mutations status in MDD patients, indicating a possible genetic mechanism of MDD development and a potential diagnostic or therapeutic target.
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Affiliation(s)
- Ni Zhang
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Li
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Zaiquan Dong
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
| | - Yongbo Hu
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China
| | - Zhihui Zhong
- Laboratory of Non-human Primate Disease Modeling Research, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China
| | - Weihong Kuang
- Department of Psychiatry, West China Hospital, Sichuan University, Chengdu, China
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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38
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Facchin S, Bertin L, Bonazzi E, Lorenzon G, De Barba C, Barberio B, Zingone F, Maniero D, Scarpa M, Ruffolo C, Angriman I, Savarino EV. Short-Chain Fatty Acids and Human Health: From Metabolic Pathways to Current Therapeutic Implications. Life (Basel) 2024; 14:559. [PMID: 38792581 PMCID: PMC11122327 DOI: 10.3390/life14050559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
The gastrointestinal tract is home to trillions of diverse microorganisms collectively known as the gut microbiota, which play a pivotal role in breaking down undigested foods, such as dietary fibers. Through the fermentation of these food components, short-chain fatty acids (SCFAs) such as acetate, propionate, and butyrate are produced, offering numerous health benefits to the host. The production and absorption of these SCFAs occur through various mechanisms within the human intestine, contingent upon the types of dietary fibers reaching the gut and the specific microorganisms engaged in fermentation. Medical literature extensively documents the supplementation of SCFAs, particularly butyrate, in the treatment of gastrointestinal, metabolic, cardiovascular, and gut-brain-related disorders. This review seeks to provide an overview of the dynamics involved in the production and absorption of acetate, propionate, and butyrate within the human gut. Additionally, it will focus on the pivotal roles these SCFAs play in promoting gastrointestinal and metabolic health, as well as their current therapeutic implications.
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Affiliation(s)
- Sonia Facchin
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Luisa Bertin
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Erica Bonazzi
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Greta Lorenzon
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Caterina De Barba
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Brigida Barberio
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Fabiana Zingone
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Daria Maniero
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
| | - Marco Scarpa
- General Surgery Unit, Department of Surgery, Oncology and Gastroenterology, University of Padova, 35138 Padua, Italy (C.R.); (I.A.)
| | - Cesare Ruffolo
- General Surgery Unit, Department of Surgery, Oncology and Gastroenterology, University of Padova, 35138 Padua, Italy (C.R.); (I.A.)
| | - Imerio Angriman
- General Surgery Unit, Department of Surgery, Oncology and Gastroenterology, University of Padova, 35138 Padua, Italy (C.R.); (I.A.)
| | - Edoardo Vincenzo Savarino
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University Hospital of Padua, 35128 Padua, Italy (L.B.); (B.B.)
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Shumilov K, Ni A, Garcia-Bonilla M, Celorrio M, Friess SH. Gut Microbiota Shape Oligodendrocyte Response after Traumatic Brain Injury. RESEARCH SQUARE 2024:rs.3.rs-4289147. [PMID: 38746334 PMCID: PMC11092821 DOI: 10.21203/rs.3.rs-4289147/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
White matter injury (WMI) is thought to be a major contributor to long-term cognitive dysfunctions after traumatic brain injury (TBI). This damage occurs partly due to apoptotic death of oligodendrocyte lineage cells (OLCs) after the injury, triggered directly by the trauma or in response to degenerating axons. Recent research suggests that the gut microbiota modulates the inflammatory response through the modulation of peripheral immune cell infiltration after TBI. Additionally, T-cells directly impact OLCs differentiation and proliferation. Therefore, we hypothesized that the gut microbiota plays a critical role in regulating the OLC response to WMI influencing T-cells differentiation and activation. Gut microbial depletion early after TBI chronically reduced re-myelination, acutely decreased OLCs proliferation, and was associated with increased myelin debris accumulation. Surprisingly, the absence of T-cells in gut microbiota depleted mice restored OLC proliferation and remyelination after TBI. OLCs co-cultured with T-cells derived from gut microbiota depleted mice resulted in impaired proliferation and increased expression of MHC-II compared with T cells from control-injured mice. Furthermore, MHC-II expression in OLCs appears to be linked to impaired proliferation under gut microbiota depletion and TBI conditions. Collectively our data indicates that depletion of the gut microbiota after TBI impaired remyelination, reduced OLCs proliferation with concomitantly increased OLC MHCII expression and required the presence of T cells. This data suggests that T cells are an important mechanistic link by which the gut microbiota modulate the oligodendrocyte response and white matter recovery after TBI.
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Affiliation(s)
| | - Allen Ni
- Washington University in St. Louis School of Medicine
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Xia M, Xia Y, Sun Y, Wang J, Lu J, Wang X, Xia D, Xu X, Sun B. Gut microbiome is associated with personality traits of free-ranging Tibetan macaques ( Macaca thibetana). Front Microbiol 2024; 15:1381372. [PMID: 38711972 PMCID: PMC11070476 DOI: 10.3389/fmicb.2024.1381372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 04/03/2024] [Indexed: 05/08/2024] Open
Abstract
Recent studies have emphasized that there is a strong link between the gut microbiome and the brain that affects social behavior and personality in animals. However, the interface between personality and the gut microbiome in wild primates remains poorly understood. Here, we used high-throughput sequencing and ethological methods in primate behavioral ecology to investigate the relationship between gut microbiome and personality in Tibetan macaques (Macaca thibetana). The behavioral assessment results indicated three personality dimensions including socialization, shyness, and anxiety. There was significant variation in alpha diversity only for shyness, with a significantly lower alpha diversity indices (including Shannon, Chao1, and PD) for bold individuals than for shy individuals. Using regression models to control for possible confounding factors, we found that the relative abundance of three genera, Akkermansia, Dialister, and Asteroleplasma, was significantly and positively correlated with the sociability scores in the macaques. In addition, Oscillospiraceae exhibited a positive correlation with scores for Shy Dimension. Furthermore, we found that the predicted functional genes for propionate and pyruvate, porphyrin and chlorophyll metabolic pathways related to animal behavior, were significant enriched in shyness group. We propose that the gut microbiome may play an important role in the formation of personality of Tibetan macaques.
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Affiliation(s)
- Mengyi Xia
- School of Resources and Environmental Engineering, Anhui University, Hefei, China
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
| | - Yingna Xia
- School of Resources and Environmental Engineering, Anhui University, Hefei, China
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
| | - Yu Sun
- School of Resources and Environmental Engineering, Anhui University, Hefei, China
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
| | - Jingjing Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei, China
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
| | - Jiakai Lu
- School of Resources and Environmental Engineering, Anhui University, Hefei, China
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
| | - Xi Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei, China
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
| | - Dongpo Xia
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
- School of Life Sciences, Anhui University, Hefei, China
| | - Xiaojuan Xu
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
- School of Biology and Food Engineering, Hefei Normal University, Hefei, China
| | - Binghua Sun
- School of Resources and Environmental Engineering, Anhui University, Hefei, China
- International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology, Anhui University, Hefei, China
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Cai Y, Wen S, Hu J, Wang Z, Huang G, Zeng Q, Zou J. Multiple reports on the causal relationship between various chronic pain and gut microbiota: a two-sample Mendelian randomization study. Front Neurosci 2024; 18:1369996. [PMID: 38694896 PMCID: PMC11061420 DOI: 10.3389/fnins.2024.1369996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/25/2024] [Indexed: 05/04/2024] Open
Abstract
Background Previous evidence suggests a link between gut microbiota and chronic pain, but the causal relationship is not yet fully understood. Methods We categorized gut microbiota based on phylum, class, order, family, and genus levels and gathered pain-related information from the UKB and FinnGen GWAS project. Then, we conducted MR analysis to explore the potential causal relationship between gut microbiota and chronic pain at 12 specific locations. Results We have discovered a direct connection between genetic susceptibility in the gut microbiota (gut metabolites) and pain experienced at 12 specific locations. Notably, Serotonin (5-HT) and Glycine were found to be associated with a higher risk of pain in the extremities. On the other hand, certain microbial families and orders were found to have a protective effect against migraines. Specifically, the family Bifidobacteriaceae (IVW, FDR p = 0.013) was associated with a lower risk of migraines. Furthermore, the genus Oxalobacter (IVW, FDR p = 0.044) was found to be linked to an increased risk of low back pain. Importantly, these associations remained significant even after applying the Benjamini-Hochberg correction test. Our analysis did not find any heterogeneity in the data (p > 0.05), as confirmed by the Cochrane's Q-test. Additionally, both the MR-Egger and MR-PRESSO tests indicated no significant evidence of horizontal pleiotropy (p > 0.05). Conclusion Our MR analysis demonstrated a causal relationship between the gut microbiota and pain, highlighting its potential significance in advancing our understanding of the underlying mechanisms and clinical implications of microbiota-mediated pain.
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Affiliation(s)
- Yuxin Cai
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- School of Rehabilitation Medicine, Southern Medical University, Guangzhou, China
| | - Shuyang Wen
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- School of Rehabilitation Medicine, Southern Medical University, Guangzhou, China
- School of Nursing, Southern Medical University, Guangzhou, China
| | - Jinjing Hu
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- School of Rehabilitation Medicine, Southern Medical University, Guangzhou, China
| | - Ziyi Wang
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Guozhi Huang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- School of Rehabilitation Medicine, Southern Medical University, Guangzhou, China
| | - Qing Zeng
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- School of Rehabilitation Medicine, Southern Medical University, Guangzhou, China
| | - Jihua Zou
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- School of Rehabilitation Medicine, Southern Medical University, Guangzhou, China
- Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
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Tang Q, Wang R, Niu H, Li Y, Li Y, Hu Z, Liu X, Tao Y. Mapping network connection and direction among symptoms of depression and anxiety in patients with chronic gastritis. Psych J 2024. [PMID: 38616130 DOI: 10.1002/pchj.757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/15/2024] [Indexed: 04/16/2024]
Abstract
Regarding neurophysiological and developmental findings, anxiety and depression are usual comorbidities of gastritis patients. However, research related to anxiety and depression among chronic gastritis patients was conducted on the disease level while ignoring symptoms. Hence, we rendered the network approach to reveal the symptoms of anxiety and depression among chronic gastritis patients. Three hundred and sixty-nine chronic gastritis patients (female = 139, Mage = 55.87 years) were asked to complete the Self-Rating Anxiety Scale and Self-Rating Depression Scale. Three symptom networks and one directed acyclic graph (DAG) network were formed. First, in the anxiety network of chronic gastritis patients, dizziness was the most influential symptom. In the depression network of chronic gastritis patients, depressed affect and psychomotor retardation were the influential symptoms. Second, panic, easy fatiguability, weakness, palpitation, depressed affect, tachycardia, fatigue, and psychomotor agitation bridged the anxiety-depression network of chronic gastritis patients. Third, DAG networks showed that anxiousness and hopelessness could trigger other symptoms in the anxiety-depression networks of chronic gastritis patients. The current study provided insightful information on patients with chronic gastritis by examining the structures of symptoms.
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Affiliation(s)
- Qihui Tang
- Faculty of Psychology, Beijing Normal University, Beijing, China
- Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education, Beijing Normal University, Beijing, China
| | - Rui Wang
- Department of Gastroenterology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Haiqun Niu
- School of Psychology, Nanjing Normal University, Nanjing, China
| | - Yifang Li
- Department of Chinese Medicine Nursing, School of Nursing, Anhui University of Chinese Medicine, Hefei, China
| | - Yuting Li
- Department of Chinese Medicine Nursing, School of Nursing, Anhui University of Chinese Medicine, Hefei, China
- School of Psychology, Shanghai University of Sport, Shanghai, China
| | - Zichao Hu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Xiangping Liu
- Faculty of Psychology, Beijing Normal University, Beijing, China
- Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education, Beijing Normal University, Beijing, China
| | - Yanqiang Tao
- Faculty of Psychology, Beijing Normal University, Beijing, China
- Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education, Beijing Normal University, Beijing, China
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Liu P, Liu Z, Wang J, Wang J, Gao M, Zhang Y, Yang C, Zhang A, Li G, Li X, Liu S, Liu L, Sun N, Zhang K. Immunoregulatory role of the gut microbiota in inflammatory depression. Nat Commun 2024; 15:3003. [PMID: 38589368 PMCID: PMC11001948 DOI: 10.1038/s41467-024-47273-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 03/26/2024] [Indexed: 04/10/2024] Open
Abstract
Inflammatory depression is a treatment-resistant subtype of depression. A causal role of the gut microbiota as a source of low-grade inflammation remains unclear. Here, as part of an observational trial, we first analyze the gut microbiota composition in the stool, inflammatory factors and short-chain fatty acids (SCFAs) in plasma, and inflammatory and permeability markers in the intestinal mucosa of patients with inflammatory depression (ChiCTR1900025175). Gut microbiota of patients with inflammatory depression exhibits higher Bacteroides and lower Clostridium, with an increase in SCFA-producing species with abnormal butanoate metabolism. We then perform fecal microbiota transplantation (FMT) and probiotic supplementation in animal experiments to determine the causal role of the gut microbiota in inflammatory depression. After FMT, the gut microbiota of the inflammatory depression group shows increased peripheral and central inflammatory factors and intestinal mucosal permeability in recipient mice with depressive and anxiety-like behaviors. Clostridium butyricum administration normalizes the gut microbiota, decreases inflammatory factors, and displays antidepressant-like effects in a mouse model of inflammatory depression. These findings suggest that inflammatory processes derived from the gut microbiota can be involved in neuroinflammation of inflammatory depression.
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Affiliation(s)
- Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
| | - Zhifen Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, Taiyuan, 030001, PR China
| | - Jizhi Wang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Medical University, Taiyuan, 030001, PR China
| | - Junyan Wang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Medical University, Taiyuan, 030001, PR China
| | - Mingxue Gao
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Medical University, Taiyuan, 030001, PR China
| | - Yanyan Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Medical University, Taiyuan, 030001, PR China
| | - Chunxia Yang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
| | - Aixia Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
| | - Gaizhi Li
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
| | - Xinrong Li
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
| | - Sha Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Medical University, Taiyuan, 030001, PR China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
| | - Lixin Liu
- Experimental Center of Science and Research, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China.
- Shanxi Medical University, Taiyuan, 030001, PR China.
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China.
| | - Kerang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China.
- Shanxi Medical University, Taiyuan, 030001, PR China.
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, 030001, PR China.
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Min L, Ablitip A, Wang R, Luciana T, Wei M, Ma X. Effects of Exercise on Gut Microbiota of Adults: A Systematic Review and Meta-Analysis. Nutrients 2024; 16:1070. [PMID: 38613103 PMCID: PMC11013040 DOI: 10.3390/nu16071070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND The equilibrium between gut microbiota (GM) and the host plays a pivotal role in maintaining overall health, influencing various physiological and metabolic functions. Emerging research suggests that exercise modulates the abundance and functionality of gut bacteria, yet the comprehensive effects on GM diversity remain to be synthesized. OBJECTIVES AND DESIGN The study aims to quantitatively examine the effect of exercise on the diversity of gut microbiota of adults using a systemic review and meta-analysis approach. METHODS PubMed, Ebsco, Embase, Web of Science, Cochrane Central Register of Controlled Trials, the China National Knowledge Infrastructure, and Wanfang Data were searched from their inception to September 2023. Exercise intervention studies with a control group that describe and compare the composition of GM in adults, using 16S rRNA gene sequencing, were included in this meta-analysis. RESULTS A total of 25 studies were included in this meta-analysis with a total of 1044 participants. Based on a fixed-effects model [Chi2 = 29.40, df = 20 (p = 0.08); I2 = 32%], the pooled analysis showed that compared with the control group, exercise intervention can significantly increase the alpha diversity of adult GM, using the Shannon index as an example [WMD = 0.05, 95% CI (0.00, 0.09); Z = 1.99 (p = 0.05)]. In addition, exercise interventions were found to significantly alter GM, notably decreasing Bacteroidetes and increasing Firmicutes, indicating a shift in the Firmicutes/Bacteroidetes ratio. The subgroup analysis indicates that females and older adults appear to exhibit more significant changes in the Shannon Index and observed OTUs. CONCLUSIONS Exercise may be a promising way to improve GM in adults. In particular, the Shannon index was significantly increased after exercise. Distinct responses in GM diversity to exercise interventions based on gender and age implicated that more research was needed.
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Affiliation(s)
- Leizi Min
- Division of Sports Science and Physical Education, Tsinghua University, Beijing 100084, China; (L.M.); (A.A.)
| | - Alimjan Ablitip
- Division of Sports Science and Physical Education, Tsinghua University, Beijing 100084, China; (L.M.); (A.A.)
| | - Rui Wang
- Division of Sports Science and Physical Education, Tsinghua University, Beijing 100084, China; (L.M.); (A.A.)
| | - Torquati Luciana
- Department of Public Health and Sport Sciences, Medical School, University of Exeter, Exeter EX1 2HZ, UK;
| | - Mengxian Wei
- Division of Sports Science and Physical Education, Tsinghua University, Beijing 100084, China; (L.M.); (A.A.)
| | - Xindong Ma
- Division of Sports Science and Physical Education, Tsinghua University, Beijing 100084, China; (L.M.); (A.A.)
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Fu H, Xu T, Zhao W, Jiang L, Shan S. Roles of gut microbiota in androgenetic alopecia: insights from Mendelian randomization analysis. Front Microbiol 2024; 15:1360445. [PMID: 38628866 PMCID: PMC11018880 DOI: 10.3389/fmicb.2024.1360445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/13/2024] [Indexed: 04/19/2024] Open
Abstract
Background Androgenetic alopecia (AGA) is the most common type of androgen-associated hair loss. Previous studies have indicated an association between the gut microbiota and AGA. To delve deeper, we executed a two-sample Mendelian randomization (MR) analysis to investigate the potential causal relationship between the gut microbiota and AGA. Methods A two-sample MR investigation was utilized to delve into the intricate interplay between gut microbiota and AGA. Information regarding 211 gut microbial taxa was sourced from the MiBioGen consortium. The summary statistics of the genome-wide association studies (GWAS) for AGA were obtained from the FinnGen biobank, which included 195 cases and 201,019 controls. Various analytical approaches, including Inverse Variance Weighting (IVW), Weighted Median, MR-Egger, Weighted Mode, and Simple Mode were employed to evaluate the causal impact of gut microbiota on AGA. Sensitivity analyses were subsequently conducted to affirm the robustness of the findings. Results A two-sample MR investigation unveiled the genus Olsenella, genus Ruminococcaceae UCG-004, and genus Ruminococcaceae UCG-010 were identified as risk factors associated with AGA. In contrast, the family Acidaminococcaceae and genus Anaerofilum, along with the genus Ruminiclostridium 9, demonstrated a protective effect. The sensitivity analyses provided additional assurance that the findings of the current study were less susceptible to the influence of confounding variables and biases. Conclusion The MR study has established a link between specific gut microbiota and AGA, offering evidence for the identification of more precisely targeted probiotics. This discovery has the potential to aid in the prevention, control, and reversal of AGA progression.
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Affiliation(s)
- Haijing Fu
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Tianyi Xu
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Wumei Zhao
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Leiwei Jiang
- Department of Dermatology, Guizhou Provincial People’s Hospital, Guiyang, China
| | - Shijun Shan
- Department of Dermatology, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- Hangzhou Third People’s Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, Hangzhou, China
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He J, Hou T, Wang Q, Wang Q, Jiang Y, Chen L, Xu J, Qi Y, Jia D, Gu Y, Gao L, Yu Y, Wang L, Kang L, Si J, Wang L, Chen S. L-arginine metabolism ameliorates age-related cognitive impairment by Amuc_1100-mediated gut homeostasis maintaining. Aging Cell 2024; 23:e14081. [PMID: 38236004 PMCID: PMC11019123 DOI: 10.1111/acel.14081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 12/04/2023] [Accepted: 12/21/2023] [Indexed: 01/19/2024] Open
Abstract
Aging-induced cognitive impairment is associated with a loss of metabolic homeostasis and plasticity. An emerging idea is that targeting key metabolites is sufficient to impact the function of other organisms. Therefore, more metabolism-targeted therapeutic intervention is needed to improve cognitive impairment. We first conducted untargeted metabolomic analyses and 16S rRNA to identify the aging-associated metabolic adaption and intestinal microbiome change. Untargeted metabolomic analyses of plasma revealed L-arginine metabolic homeostasis was altered during the aging process. Impaired L-arginine metabolic homeostasis was associated with low abundance of intestinal Akkermansia muciniphila (AKK) colonization in mice. Long-term supplementation of AKK outer membranes protein-Amuc_1100, rescued the L-arginine level and restored cognitive impairment in aging mice. Mechanically, Amuc_1100 acted directly as a source of L-arginine and enriched the L-arginine-producing bacteria. In aged brain, Amuc_1100 promoted the superoxide dismutase to alleviated oxidation stress, and increased nitric oxide, derivatives of L-arginine, to improve synaptic plasticity. Meanwhile, L-arginine repaired lipopolysaccharide-induced intestinal barrier damage and promoted growth of colon organoid. Our findings indicated that aging-related cognitive impairment was closely associated with the disorders of L-arginine metabolism. AKK-derived Amuc_1100, as a potential postbiotic, targeting the L-arginine metabolism, might provide a promising therapeutic strategy to maintain the intestinal homeostasis and cognitive function in aging.
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Affiliation(s)
- Jiamin He
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Tongyao Hou
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Qiwen Wang
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Qingyi Wang
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Yao Jiang
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
- Department of GastroenterologySecond Affiliated Hospital of Zhejiang University School of MedicineHangzhouChina
| | - Luyi Chen
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
- Department of General PracticeSir Run Run Shaw Hospital, Zhejiang University School of MedicineHangzhouChina
| | - Jilei Xu
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Yadong Qi
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Dingjiacheng Jia
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
- Department of GastroenterologySecond Affiliated Hospital of Zhejiang University School of MedicineHangzhouChina
| | - Yanrou Gu
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
- Department of Gastroenterology, Wenzhou People's HospitalWenzhou Medical UniversityWenzhouChina
| | - Lidan Gao
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
- Third Affiliated Hospital of Shanghai University, Wenzhou Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's HospitalWenzhouChina
| | - Yingcong Yu
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
- Department of Gastroenterology, Wenzhou People's HospitalWenzhou Medical UniversityWenzhouChina
| | - Lan Wang
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Lijun Kang
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain‐Machine Integration, School of Brain Science and Brain MedicineZhejiang UniversityHangzhouChina
| | - Jianmin Si
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
| | - Liangjing Wang
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
- Department of GastroenterologySecond Affiliated Hospital of Zhejiang University School of MedicineHangzhouChina
| | - Shujie Chen
- Department of GastroenterologySir Run Run Shaw Hospital, Zhejiang UniversityHangzhouChina
- Institution of GastroenterologyZhejiang UniversityHangzhouChina
- Prevention and Treatment Research Center for Senescent DiseaseZhejiang University School of MedicineHangzhouChina
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Bi K, Lei Y, Kong D, Li Y, Fan X, Luo X, Yang J, Wang G, Li X, Xu Y, Luo H. Progress in the study of intestinal microbiota involved in morphine tolerance. Heliyon 2024; 10:e27187. [PMID: 38533077 PMCID: PMC10963202 DOI: 10.1016/j.heliyon.2024.e27187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 01/09/2024] [Accepted: 02/26/2024] [Indexed: 03/28/2024] Open
Abstract
Morphine is a widely used opioid for treatment of pain. The attendant problems including morphine tolerance and morphine dependence pose a major public health challenge. In recent years, there has been increasing interest in the gastrointestinal microbiota in many physiological and pathophysiological processes. The connectivity network between the gut microbiota and the brain is involved in multiple biological systems, and bidirectional communication between them is critical in gastrointestinal tract homeostasis, the central nervous system, and the microbial system. Many research have previously shown that morphine has a variety of effects on the gastrointestinal tract, but none have determined the function of intestinal microbiota in morphine tolerance. This study reviewed the mechanisms of morphine tolerance from the perspective of dysregulation of microbiota-gut-brain axis homeostasis, by summarizing the possible mechanisms originating from the gut that may affect morphine tolerance and the improvement of morphine tolerance through the gut microbiota.
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Affiliation(s)
- Ke Bi
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
- Yunnan Technological Innovation Centre of Drug Addiction Medicine, Yunnan University, Kunming, 650032, China
| | - Yi Lei
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - Deshenyue Kong
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
- Yunnan Technological Innovation Centre of Drug Addiction Medicine, Yunnan University, Kunming, 650032, China
| | - Yuansen Li
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
- Yunnan Technological Innovation Centre of Drug Addiction Medicine, Yunnan University, Kunming, 650032, China
| | - Xuan Fan
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
- Yunnan Technological Innovation Centre of Drug Addiction Medicine, Yunnan University, Kunming, 650032, China
| | - Xiao Luo
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
- Yunnan Technological Innovation Centre of Drug Addiction Medicine, Yunnan University, Kunming, 650032, China
| | - Jiqun Yang
- Third People's Hospital of Kunming City/Drug Rehabilitation Hospital of Kunming City, Kunming, 650041, China
| | - Guangqing Wang
- Drug Rehabilitation Administration of Yunnan Province, Kunming, 650032, China
| | - Xuejun Li
- Drug Rehabilitation Administration of Yunnan Province, Kunming, 650032, China
| | - Yu Xu
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - Huayou Luo
- Department of Gastrointestinal and Hernia Surgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
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48
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Wang S, Gong X, Xiao F, Yang Y. Recent advances in host-focused molecular tools for investigating host-gut microbiome interactions. Front Microbiol 2024; 15:1335036. [PMID: 38605718 PMCID: PMC11007152 DOI: 10.3389/fmicb.2024.1335036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/18/2024] [Indexed: 04/13/2024] Open
Abstract
Microbial communities in the human gut play a significant role in regulating host gene expression, influencing a variety of biological processes. To understand the molecular mechanisms underlying host-microbe interactions, tools that can dissect signaling networks are required. In this review, we discuss recent advances in molecular tools used to study this interplay, with a focus on those that explore how the microbiome regulates host gene expression. These tools include CRISPR-based whole-body genetic tools for deciphering host-specific genes involved in the interaction process, Cre-loxP based tissue/cell-specific gene editing approaches, and in vitro models of host-derived organoids. Overall, the application of these molecular tools is revolutionizing our understanding of how host-microbiome interactions contribute to health and disease, paving the way for improved therapies and interventions that target microbial influences on the host.
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Affiliation(s)
- Siyao Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
- Key Laboratory of Big Data-Based Precision Medicine, Ministry of Industry and Information Technology, Beihang University, Beijing, China
| | - Xu Gong
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
- Key Laboratory of Big Data-Based Precision Medicine, Ministry of Industry and Information Technology, Beihang University, Beijing, China
| | - Fei Xiao
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Yun Yang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
- Key Laboratory of Big Data-Based Precision Medicine, Ministry of Industry and Information Technology, Beihang University, Beijing, China
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49
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Borghi E, Xynomilakis O, Ottaviano E, Ceccarani C, Viganò I, Tognini P, Vignoli A. Gut microbiota profile in CDKL5 deficiency disorder patients. Sci Rep 2024; 14:7376. [PMID: 38548767 PMCID: PMC10978852 DOI: 10.1038/s41598-024-56989-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 03/13/2024] [Indexed: 04/01/2024] Open
Abstract
CDKL5 deficiency disorder (CDD) is a neurodevelopmental condition characterized by global developmental delay, early-onset seizures, intellectual disability, visual and motor impairments. Unlike Rett Syndrome (RTT), CDD lacks a clear regression period. Patients with CDD frequently encounter gastrointestinal (GI) disturbances and exhibit signs of subclinical immune dysregulation. However, the underlying causes of these conditions remain elusive. Emerging studies indicate a potential connection between neurological disorders and gut microbiota, an area completely unexplored in CDD. We conducted a pioneering study, analyzing fecal microbiota composition in individuals with CDD (n = 17) and their healthy relatives (n = 17). Notably, differences in intestinal bacterial diversity and composition were identified in CDD patients. In particular, at genus level, CDD microbial communities were characterized by an increase in the relative abundance of Clostridium_AQ, Eggerthella, Streptococcus, and Erysipelatoclostridium, and by a decrease in Eubacterium, Dorea, Odoribacter, Intestinomonas, and Gemmiger, pointing toward a dysbiotic profile. We further investigated microbiota changes based on the severity of GI issues, seizure frequency, sleep disorders, food intake type, impairment in neuro-behavioral features and ambulation capacity. Enrichment in Lachnoclostridium and Enterobacteriaceae was observed in the microbiota of patients with more severe GI symptoms, while Clostridiaceae, Peptostreptococcaceae, Coriobacteriaceae, Erysipelotrichaceae, Christensenellaceae, and Ruminococcaceae were enriched in patients experiencing daily epileptic seizures. Our findings suggest a potential connection between CDD, microbiota and symptom severity. This study marks the first exploration of the gut-microbiota-brain axis in subjects with CDD. It adds to the growing body of research emphasizing the role of the gut microbiota in neurodevelopmental disorders and opens doors to potential interventions that target intestinal microbes with the aim of improving the lives of patients with CDD.
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Affiliation(s)
- Elisa Borghi
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
| | - Ornella Xynomilakis
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
- Dipartimento di Scienze Biomediche e Cliniche, Università Degli Studi di Milano, 20157, Milan, Italy
| | | | - Camilla Ceccarani
- Institute of Biomedical Technologies, National Research Council, Segrate, Milan, Italy
| | - Ilaria Viganò
- Epilepsy Center-Child Neuropsychiatric Unit, ASST Santi Paolo e Carlo, Milan, Italy
| | - Paola Tognini
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.
- Health Science Interdisciplinary Center, Sant'Anna School of Advanced Studies, Pisa, Italy.
| | - Aglaia Vignoli
- Department of Health Sciences, Università Degli Studi di Milano, Milan, Italy
- Childhood and Adolescence Neurology and Psychiatry Unit, ASST GOM Niguarda, Milan, Italy
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50
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Sanidad KZ, Rager SL, Carrow HC, Ananthanarayanan A, Callaghan R, Hart LR, Li T, Ravisankar P, Brown JA, Amir M, Jin JC, Savage AR, Luo R, Rowdo FM, Martin ML, Silver RB, Guo CJ, Krumsiek J, Inohara N, Zeng MY. Gut bacteria-derived serotonin promotes immune tolerance in early life. Sci Immunol 2024; 9:eadj4775. [PMID: 38489352 DOI: 10.1126/sciimmunol.adj4775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 02/06/2024] [Indexed: 03/17/2024]
Abstract
The gut microbiota promotes immune system development in early life, but the interactions between the gut metabolome and immune cells in the neonatal gut remain largely undefined. Here, we demonstrate that the neonatal gut is uniquely enriched with neurotransmitters, including serotonin, and that specific gut bacteria directly produce serotonin while down-regulating monoamine oxidase A to limit serotonin breakdown. We found that serotonin directly signals to T cells to increase intracellular indole-3-acetaldehdye and inhibit mTOR activation, thereby promoting the differentiation of regulatory T cells, both ex vivo and in vivo in the neonatal intestine. Oral gavage of serotonin into neonatal mice resulted in long-term T cell-mediated antigen-specific immune tolerance toward both dietary antigens and commensal bacteria. Together, our study has uncovered an important role for specific gut bacteria to increase serotonin availability in the neonatal gut and identified a function of gut serotonin in shaping T cell response to dietary antigens and commensal bacteria to promote immune tolerance in early life.
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Affiliation(s)
- Katherine Z Sanidad
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Stephanie L Rager
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Hannah C Carrow
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School, New York, NY 10065, USA
| | - Aparna Ananthanarayanan
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Ryann Callaghan
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School, New York, NY 10065, USA
| | - Lucy R Hart
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Tingting Li
- Jill Roberts Institute for Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10065, USA
| | - Purnima Ravisankar
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School, New York, NY 10065, USA
| | - Julia A Brown
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Mohammed Amir
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Jenny C Jin
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Alexandria Rose Savage
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Ryan Luo
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
| | | | - M Laura Martin
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Randi B Silver
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10065, USA
| | - Chun-Jun Guo
- Jill Roberts Institute for Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10065, USA
| | - Jan Krumsiek
- Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Naohiro Inohara
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Melody Y Zeng
- Gale and Ira Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY 10065, USA
- Department of Pediatrics, Weill Cornell Medicine, New York, NY 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School, New York, NY 10065, USA
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