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Zhao Y, Yang H, Wu P, Yang S, Xue W, Xu B, Zhang S, Tang B, Xu D. Akkermansia muciniphila: A promising probiotic against inflammation and metabolic disorders. Virulence 2024; 15:2375555. [PMID: 39192579 PMCID: PMC11364076 DOI: 10.1080/21505594.2024.2375555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 06/13/2024] [Accepted: 06/28/2024] [Indexed: 08/29/2024] Open
Abstract
Metabolic disease is a worldwide epidemic that has become a public health problem. Gut microbiota is considered to be one of the important factors that maintain human health by regulating host metabolism. As an abundant bacterium in the host gut, A. muciniphila regulates metabolic and immune functions, and protects gut health. Multiple studies have indicated that alterations in the abundance of A. muciniphila are associated with various diseases, including intestinal inflammatory diseases, obesity, type 2 diabetes mellitus, and even parasitic diseases. Beneficial effects were observed not only in live A. muciniphila, but also in pasteurized A. muciniphila, A. muciniphila-derived extracellular vesicles, outer membrane, and secreted proteins. Although numerous studies have only proven the simple correlation between multiple diseases and A. muciniphila, an increasing number of studies in animal models and preclinical models have demonstrated that the beneficial impacts shifted from correlations to in-depth mechanisms. In this review, we provide a comprehensive view of the beneficial effects of A. muciniphila on different diseases and summarize the potential mechanisms of action of A. muciniphila in the treatment of diseases. We provide a comprehensive understanding of A. muciniphila for improving host health and discuss the perspectives of A. muciniphila in the future studies.
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Affiliation(s)
- Yanqing Zhao
- Department of Human Parasitology, School of Basic Medicine, Hubei University of Medicine, Shiyan, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei, China
| | - Huijun Yang
- The First School of Clinical Medicine, Hubei University of Medicine, Shiyan, Hubei, China
| | - Peng Wu
- Department of Human Parasitology, School of Basic Medicine, Hubei University of Medicine, Shiyan, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei, China
| | - Shuguo Yang
- Department of Human Parasitology, School of Basic Medicine, Hubei University of Medicine, Shiyan, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei, China
| | - Wenkun Xue
- Department of Human Parasitology, School of Basic Medicine, Hubei University of Medicine, Shiyan, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei, China
| | - Biao Xu
- Department of Human Parasitology, School of Basic Medicine, Hubei University of Medicine, Shiyan, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei, China
| | - Sirui Zhang
- Department of Human Parasitology, School of Basic Medicine, Hubei University of Medicine, Shiyan, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei, China
| | - Bin Tang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Daoxiu Xu
- Department of Human Parasitology, School of Basic Medicine, Hubei University of Medicine, Shiyan, Hubei, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, Hubei, China
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Campagnoli LIM, Marchesi N, Varesi A, Morozzi M, Mascione L, Ricevuti G, Esposito C, Galeotti N, Pascale A. New therapeutic avenues in multiple sclerosis: is there a place for gut microbiota-based treatments? Pharmacol Res 2024:107456. [PMID: 39389400 DOI: 10.1016/j.phrs.2024.107456] [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: 08/15/2024] [Revised: 09/30/2024] [Accepted: 10/07/2024] [Indexed: 10/12/2024]
Abstract
The bidirectional interaction between the gut and the central nervous system (CNS), the so-called gut microbiota-brain axis, is reported to influence brain functions, thus having a potential impact on the development or the progression of several neurodegenerative disorders. Within this context, it has been documented that multiple sclerosis (MS), an autoimmune inflammatory, demyelinating, and neurodegenerative disease of the CNS, is associated with gastrointestinal symptoms, including constipation, dysphagia, and faecal incontinence. Moreover, some evidence suggests the existence of an altered gut microbiota (GM) composition in MS patients with respect to healthy individuals, as well as the potential influence of GM dysbiosis on typical MS features, including increased intestinal permeability, disruption of blood-brain barrier integrity, chronic inflammation, and altered T cells differentiation. Starting from these assumptions, the possible involvement of GM alteration in MS pathogenesis seems likely, and its restoration could represent a supplemental beneficial strategy against this disabling disease. In this regard, the present review will explore possible preventive approaches (including several dietary interventions, the administration of probiotics, prebiotics, synbiotics, and postbiotics, and the use of faecal microbiota transplantation) to be pursued as prophylaxis or in combination with pharmacological treatments with the aim of re-establishing a proper GM, thus helping to prevent the development of this disease or to manage it by alleviating symptoms or slowing down its progression.
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Affiliation(s)
| | - Nicoletta Marchesi
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy.
| | - Angelica Varesi
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Martina Morozzi
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Linda Mascione
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy
| | | | - Ciro Esposito
- Department of Internal Medicine and Therapeutics, University of Pavia, Italy; Nephrology and dialysis unit, ICS S. Maugeri SPA SB Hospital, Pavia, Italy; High School in Geriatrics, University of Pavia, Italy
| | - Nicoletta Galeotti
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Alessia Pascale
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy.
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Kozhakhmetov S, Kaiyrlykyzy A, Jarmukhanov Z, Vinogradova E, Zholdasbekova G, Alzhanova D, Kunz J, Kushugulova A, Askarova S. Inflammatory Manifestations Associated With Gut Dysbiosis in Alzheimer's Disease. Int J Alzheimers Dis 2024; 2024:9741811. [PMID: 39346576 PMCID: PMC11436273 DOI: 10.1155/2024/9741811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 08/13/2024] [Accepted: 08/29/2024] [Indexed: 10/01/2024] Open
Abstract
Recent studies strongly suggest that gut microbiome can influence brain functions and contribute to the development of Alzheimer's disease (AD). However, reported changes in the gut microbiomes in AD patients from different countries are not similar, and more research is needed to reveal the relationships between human microbiomes and AD in diverse ethnic populations. There is also an assumption that microbiome-associated peripheral inflammation might drive the development of sporadic AD. This cross-sectional study is aimed at analyzing the gut microbial profile and exploring potential associations with blood cytokines and some clinical parameters among individuals diagnosed with Alzheimer's in Kazakhstan. Consistent with previous studies, we have found that the microbial landscape in AD reveals specific alterations in the gut microbiome. Specifically, the AD patient group showed a decreased Firmicutes/Bacteroidetes ratio. The differential abundance analysis highlighted a dysbiosis in the gut microbiota of AD patients, marked by a reduced presence of Bifidobacterium, particularly B. breve. In our study, AD patients' altered gut microbiota composition notably features an increased presence of Pseudomonadota like Phyllobacterium and inflammatory bacteria such as Synergistetes and the Christensenellaceae family. The metabolic profiling of the AD microbiome reveals a predominant presence of pathways related to sugar, carrier molecules, tetrapyrrole, pyrimidine biosynthesis, and nucleic acid processing. This analysis also highlighted a marked reduction in SCFA, carbohydrate, polysaccharide, polyamine, and myo-inositol degradation pathways. The increases in the proinflammatory cytokines IL-1a, IL-8, IL-17A, IL-12p40, TNF-β, MCP-1, IL-2, and IL-12p70 and the anti-inflammatory cytokines IL-10 and IL-13 were observed in AD patients. Key variables driving the separation of AD and controls include inflammatory markers (IL-1a and IL-8), growth factors (EGF), lipids (LDL), BMI, and gut microbes, like genus Tyzzerella and Turicibacter and species Parabacteroides distasonis and Bacteroides eggerthii. We have also demonstrated that almost all cytokines strongly correlate with serum adiponectin levels and specific microbial taxa in AD patients. Thus, our findings identify potential microbial and inflammatory signatures in an ethnically distinct cohort of AD patients. These could serve as AD biomarkers and microbiota-based therapeutic targets for treating AD.
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Affiliation(s)
- Samat Kozhakhmetov
- Center for Life SciencesNational Laboratory AstanaNazarbayev University, Astana, Kazakhstan
| | - Aiym Kaiyrlykyzy
- Center for Life SciencesNational Laboratory AstanaNazarbayev University, Astana, Kazakhstan
- Faculty of Medicine and Healthcareal-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Zharkyn Jarmukhanov
- Center for Life SciencesNational Laboratory AstanaNazarbayev University, Astana, Kazakhstan
| | - Elizaveta Vinogradova
- Center for Life SciencesNational Laboratory AstanaNazarbayev University, Astana, Kazakhstan
| | - Gulnaz Zholdasbekova
- Center for Life SciencesNational Laboratory AstanaNazarbayev University, Astana, Kazakhstan
- Institute of Life SciencesMedical University Karaganda, Karagandy, Kazakhstan
| | - Dinara Alzhanova
- Department of NeurologyMedical University Astana, Astana, Kazakhstan
| | - Jeanette Kunz
- School of MedicineNazarbayev University, Astana, Kazakhstan
| | - Almagul Kushugulova
- Center for Life SciencesNational Laboratory AstanaNazarbayev University, Astana, Kazakhstan
| | - Sholpan Askarova
- Center for Life SciencesNational Laboratory AstanaNazarbayev University, Astana, Kazakhstan
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Crocetta A, Liloia D, Costa T, Duca S, Cauda F, Manuello J. From gut to brain: unveiling probiotic effects through a neuroimaging perspective-A systematic review of randomized controlled trials. Front Nutr 2024; 11:1446854. [PMID: 39360283 PMCID: PMC11444994 DOI: 10.3389/fnut.2024.1446854] [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: 06/10/2024] [Accepted: 09/02/2024] [Indexed: 10/04/2024] Open
Abstract
The gut-brain axis, a bidirectional communication network between the gastrointestinal system and the brain, significantly influences mental health and behavior. Probiotics, live microorganisms conferring health benefits, have garnered attention for their potential to modulate this axis. However, their effects on brain function through gut microbiota modulation remain controversial. This systematic review examines the effects of probiotics on brain activity and functioning, focusing on randomized controlled trials using both resting-state and task-based functional magnetic resonance imaging (fMRI) methodologies. Studies investigating probiotic effects on brain activity in healthy individuals and clinical populations (i.e., major depressive disorder and irritable bowel syndrome) were identified. In healthy individuals, task-based fMRI studies indicated that probiotics modulate brain activity related to emotional regulation and cognitive processing, particularly in high-order areas such as the amygdala, precuneus, and orbitofrontal cortex. Resting-state fMRI studies revealed changes in connectivity patterns, such as increased activation in the Salience Network and reduced activity in the Default Mode Network. In clinical populations, task-based fMRI studies showed that probiotics could normalize brain function in patients with major depressive disorder and irritable bowel syndrome. Resting-state fMRI studies further suggested improved connectivity in mood-regulating networks, specifically in the subcallosal cortex, amygdala and hippocampus. Despite promising findings, methodological variability and limited sample sizes emphasize the need for rigorous, longitudinal research to clarify the beneficial effects of probiotics on the gut-brain axis and mental health.
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Affiliation(s)
- Annachiara Crocetta
- Department of Psychology, Functional Neuroimaging and Complex Neural Systems (FOCUS) Laboratory, University of Turin, Turin, Italy
- Department of Psychology, GCS fMRI, Koelliker Hospital, University of Turin, Turin, Italy
| | - Donato Liloia
- Department of Psychology, Functional Neuroimaging and Complex Neural Systems (FOCUS) Laboratory, University of Turin, Turin, Italy
- Department of Psychology, GCS fMRI, Koelliker Hospital, University of Turin, Turin, Italy
| | - Tommaso Costa
- Department of Psychology, Functional Neuroimaging and Complex Neural Systems (FOCUS) Laboratory, University of Turin, Turin, Italy
- Department of Psychology, GCS fMRI, Koelliker Hospital, University of Turin, Turin, Italy
- Neuroscience Institute of Turin (NIT), University of Turin, Turin, Italy
| | - Sergio Duca
- Department of Psychology, GCS fMRI, Koelliker Hospital, University of Turin, Turin, Italy
| | - Franco Cauda
- Department of Psychology, Functional Neuroimaging and Complex Neural Systems (FOCUS) Laboratory, University of Turin, Turin, Italy
- Department of Psychology, GCS fMRI, Koelliker Hospital, University of Turin, Turin, Italy
- Neuroscience Institute of Turin (NIT), University of Turin, Turin, Italy
| | - Jordi Manuello
- Department of Psychology, Functional Neuroimaging and Complex Neural Systems (FOCUS) Laboratory, University of Turin, Turin, Italy
- Department of Psychology, GCS fMRI, Koelliker Hospital, University of Turin, Turin, Italy
- Move’N’Brains Lab, Department of Psychology, University of Turin, Turin, Italy
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Ren H, Kong X, Zhang Y, Deng F, Li J, Zhao F, Li P, Pei K, Tan J, Cheng Y, Wang Y, Zhang L, Wang Y, Hao X. The therapeutic potential of Ziziphi Spinosae Semen and Polygalae Radix in insomnia management: Insights from gut microbiota and serum metabolomics techniques. JOURNAL OF ETHNOPHARMACOLOGY 2024; 330:118255. [PMID: 38670402 DOI: 10.1016/j.jep.2024.118255] [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: 11/11/2023] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ziziphi Spinosae Semen and Polygalae Radix (ZSS-PR) constitute a traditional Chinese herbal combination with notable applications in clinical and experimental settings due to their evident sedative and calming effects. Aligned with traditional Chinese medicine principles, Ziziphi Spinosae Semen supports cardiovascular health, nourishes the liver, and induces mental tranquillity. Simultaneously, Polygalae Radix elicits calming effects, fosters clear thinking, and reinstates proper coordination between the heart and kidneys. ZSS-PR is commonly employed as a therapeutic intervention for various insomnia types, demonstrating distinct clinical efficacy. Our previous study findings provide evidence that ZSS-PR administration significantly reduces sleep onset latency, increases overall sleep duration, and improves abnormal neurotransmitter levels in a murine insomnia model. AIM OF STUDY This investigation aimed to scrutinize the intrinsic regulatory mechanism of ZSS-PR in managing insomnia using gut microbiota and serum metabolomics techniques. MATERIALS AND METHODS Mice were given DL-4-Chlorophenylalanine to induce insomnia and then treated with ZSS-PR. The open-field test assessed the animals' spontaneous activity. Concentrations of neurotransmitters, endocrine hormones, and cytokines in the duodenum were measured using enzyme linked immunosorbent assay, and brain histopathology was evaluated with H&E staining. The impact of ZSS-PR on the metabolic profile was examined by liquid chromatography couped to high resolution mass spectrometry, and 16S rDNA sequencing was used to study the influence of ZSS-PR on the gut microbiota. Additionally, the content of short-chain fatty acids (SCFAs) was analyzed by GC-MS. Finally, correlation analysis investigated relationships between biochemical markers, metabolites, SCFAs, and gut microbiota. RESULTS ZSS-PR treatment significantly increased movement time and distance in mice with insomnia and improved pathological impairments in the cerebral cortex and hippocampus. It also restored abnormal levels of biochemical markers in the gut of insomnia-afflicted mice, including 5-hydroxytryptamine, dopamine, gastrin, melatonin, tumour necrosis factor-α, and interleukin-1β. Metabolomics findings showed that ZSS-PR had a significant restorative effect on 15 endogenous metabolites in mice with insomnia. Furthermore, ZSS-PR primarily influenced five metabolic pathways, such as phenylalanine, tyrosine, and tryptophan biosynthesis, glutamine, and glutamate metabolism. Additionally, gut microbiota analysis revealed notable alterations in both diversity and microbial composition after ZSS-PR treatment. These changes were primarily attributed to the relative abundances of microbiota, including Firmicutes, Bacteroidota, Fusobacteriota, Muribaculaceae_unclassified, and Ligilactobacillus. The results of SCFAs analysis demonstrated that ZSS-PR effectively restored abnormal levels of acetic acid, propionic acid, isobutyric acid, butyric acid, isovaleric acid, and valeric acid in insomniac mice. Subsequent correlation analysis revealed that microbiota show obvious correlations with both biochemical markers and metabolites. CONCLUSIONS The results provide compelling evidence that ZSS-PR effectively mitigates abnormal activity, reduces cerebral pathological changes, and restores abnormal levels of neurotransmitters, endocrine hormones, and cytokines in mice with insomnia. The underlying mechanism is intricately linked to the modulation of gut microbiota and endogenous metabolic pathways.
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Affiliation(s)
- Haiqin Ren
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Xiangpeng Kong
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yue Zhang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Fanying Deng
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Jianli Li
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Fuxia Zhao
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Pei Li
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Ke Pei
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Jinyan Tan
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yangang Cheng
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yan Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Lu Zhang
- Affiliated Hospital of Shanxi University of Traditional Chinese Medicine, No. 75, section 1, Jinci Road, WanBailin District, Taiyuan, 030024, China
| | - Yingli Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China.
| | - Xuliang Hao
- Affiliated Hospital of Shanxi University of Traditional Chinese Medicine, No. 75, section 1, Jinci Road, WanBailin District, Taiyuan, 030024, China.
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Dinakis E, O'Donnell JA, Marques FZ. The gut-immune axis during hypertension and cardiovascular diseases. Acta Physiol (Oxf) 2024; 240:e14193. [PMID: 38899764 DOI: 10.1111/apha.14193] [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: 02/02/2024] [Revised: 05/04/2024] [Accepted: 06/06/2024] [Indexed: 06/21/2024]
Abstract
The gut-immune axis is a relatively novel phenomenon that provides mechanistic links between the gut microbiome and the immune system. A growing body of evidence supports it is key in how the gut microbiome contributes to several diseases, including hypertension and cardiovascular diseases (CVDs). Evidence over the past decade supports a causal link of the gut microbiome in hypertension and its complications, including myocardial infarction, atherosclerosis, heart failure, and stroke. Perturbations in gut homeostasis such as dysbiosis (i.e., alterations in gut microbial composition) may trigger immune responses that lead to chronic low-grade inflammation and, ultimately, the development and progression of these conditions. This is unsurprising, as the gut harbors one of the largest numbers of immune cells in the body, yet is a phenomenon not entirely understood in the context of cardiometabolic disorders. In this review, we discuss the role of the gut microbiome, the immune system, and inflammation in the context of hypertension and CVD, and consolidate current evidence of this complex interplay, whilst highlighting gaps in the literature. We focus on diet as one of the major modulators of the gut microbiota, and explain key microbial-derived metabolites (e.g., short-chain fatty acids, trimethylamine N-oxide) as potential mediators of the communication between the gut and peripheral organs such as the heart, arteries, kidneys, and the brain via the immune system. Finally, we explore the dual role of both the gut microbiome and the immune system, and how they work together to not only contribute, but also mitigate hypertension and CVD.
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Affiliation(s)
- Evany Dinakis
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Joanne A O'Donnell
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Francine Z Marques
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
- Heart Failure Research Group, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Victorian Heart Institute, Monash University, Melbourne, Victoria, Australia
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Aziz-Zadeh L, Mayer E, Labus J, Ringold S, Jayashankar A, Kilroy E, Butera C, Jacobs J, Tanartkit S, Joshi S, Dapretto M. Relationships between tryptophan-related gut metabolites, brain activity, and autism symptomatology. RESEARCH SQUARE 2024:rs.3.rs-4559624. [PMID: 39108481 PMCID: PMC11302680 DOI: 10.21203/rs.3.rs-4559624/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
Gut microbial metabolites have been theorized to play a causative role in the pathophysiology of autism spectrum disorder (ASD). This hypothesis is based on results from mechanistic preclinical studies and several correlational studies showing differences in gut microbial composition between ASD subjects and neurotypical (NT) controls. However, alterations in how the human brain interacts with the gut microbiome in ASD have not been examined. In this cross-sectional, case-control observational study, fecal metabolomics, task-based functional magnetic resonance imaging (fMRI), and behavioral assessments were obtained from 43 ASD and 41 NT children aged 8-17. The fMRI tasks were based on socio-emotional and sensory paradigms that commonly show strong evoked brain differences in ASD participants. General linear models and mediational modeling were applied to examine the links between tryptophan metabolism and evoked brain activity and behavior. Results indicated that fecal levels of specific tryptophan-related metabolites were associated with: 1) brain activity atypicalities in regions previously implicated in ASD (i.e., insula and cingulate); and 2) ASD severity and symptomatology (i.e., ADOS scores, disgust propensity, and sensory sensitivities). Importantly, activity in the mid-insula and mid-cingulate significantly mediated relationships between the microbial tryptophan metabolites, indolelactate and tryptophan betaine, and ASD severity and disgust sensitivity. To our knowledge, this is the first study to elucidate how interactions between gut metabolites and brain activity may impact autism symptomatology, particularly in functional brain pathways associated with vagal and interoceptive/emotion processing.
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Affiliation(s)
| | - Emeran Mayer
- G. Oppenheimer Center for Neurobiology of Stress and Resilience at UCLA; Institute for Genomics and Bioinformatics, University of California, Irvine
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Yuan M, Zhang Z, Liu T, Feng H, Liu Y, Chen K. The Role of Nondigestible Oligosaccharides in Alleviating Human Chronic Diseases by Regulating the Gut Microbiota: A Review. Foods 2024; 13:2157. [PMID: 38998662 PMCID: PMC11241040 DOI: 10.3390/foods13132157] [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: 05/25/2024] [Revised: 06/30/2024] [Accepted: 07/06/2024] [Indexed: 07/14/2024] Open
Abstract
The gut has been a focus of chronic disease research. The gut microbiota produces metabolites that act as signaling molecules and substrates, closely influencing host health. Nondigestible oligosaccharides (NDOs), as a common dietary fiber, play an important role in regulating the structure and function of the gut microbiota. Their mechanism of action is mainly attributed to providing a carbon source as specific probiotics, producing related metabolites, and regulating the gut microbial community. However, due to the selective utilization of oligosaccharides, some factors, such as the type and structure of oligosaccharides, have different impacts on the composition of microbial populations and the production of metabolites in the colon ecosystem. This review systematically describes the key factors influencing the selective utilization of oligosaccharides by microorganisms and elaborates how oligosaccharides affect the host's immune system, inflammation levels, and energy metabolism by regulating microbial diversity and metabolic function, which in turn affects the onset and progress of chronic diseases, especially diabetes, obesity, depression, intestinal inflammatory diseases, and constipation. In this review, we re-examine the interaction mechanisms between the gut microbiota and its associated metabolites and diseases, and we explore new strategies for promoting human health and combating chronic diseases through dietary interventions.
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Affiliation(s)
- Meiyu Yuan
- State Key Laboratory of Food Science and Resource, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; (M.Y.); (Z.Z.)
| | - Zhongwei Zhang
- State Key Laboratory of Food Science and Resource, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; (M.Y.); (Z.Z.)
- School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330019, China;
| | - Tongying Liu
- Jiangxi Maternel and Child Health Hospital, Nanchang 330108, China;
| | - Hua Feng
- School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330019, China;
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Resource, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; (M.Y.); (Z.Z.)
- Chongqing Research Institute of Nanchang University, Chongqing 402660, China
| | - Kai Chen
- Shangrao Innovation Institute of Agricultural Technology, College of Life Science, Shangrao Normal University, Shangrao 334001, China
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Asgari R, Bazzazan MA, Karimi Jirandehi A, Yousefzadeh S, Alaei M, Keshavarz Shahbaz S. Peyer's Patch: Possible target for modulating the Gut-Brain-Axis through microbiota. Cell Immunol 2024; 401-402:104844. [PMID: 38901288 DOI: 10.1016/j.cellimm.2024.104844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 06/05/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024]
Abstract
The gastrointestinal (GI) tract and the brain form bidirectional nervous, immune, and endocrine communications known as the gut-brain axis. Several factors can affect this axis; among them, various studies have focused on the microbiota and imply that alterations in microbiota combinations can influence both the brain and GI. Also, many studies have shown that the immune system has a vital role in varying gut microbiota combinations. In the current paper, we will review the multidirectional effects of gut microbiota, immune system, and nervous system on each other. Specifically, this review mainly focuses on the impact of Peyer's patches as a critical component of the gut immune system on the gut-brain axis through affecting the gut's microbial composition. In this way, some factors were discussed as proposed elements of missing gaps in this field.
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Affiliation(s)
- Reza Asgari
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran; USERN Office, Qazvin University of Medical science, Qazvin, Iran
| | - Mohammad Amin Bazzazan
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran; USERN Office, Qazvin University of Medical science, Qazvin, Iran
| | - Ashkan Karimi Jirandehi
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran; USERN Office, Qazvin University of Medical science, Qazvin, Iran
| | - Salar Yousefzadeh
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran; USERN Office, Qazvin University of Medical science, Qazvin, Iran
| | - Masood Alaei
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran; USERN Office, Qazvin University of Medical science, Qazvin, Iran
| | - Sanaz Keshavarz Shahbaz
- USERN Office, Qazvin University of Medical science, Qazvin, Iran; Cellular and Molecular Research Center, Research Institute for prevention of Non- Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran.
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10
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Yang Y, Zhao Y, Lei H. Protective effects of Lactococcus lactis subsp. lactis HFY14 supplementation on the brain, intestines, and motor function of antibiotic-treated mice. Front Microbiol 2024; 15:1418556. [PMID: 38946910 PMCID: PMC11211273 DOI: 10.3389/fmicb.2024.1418556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 06/03/2024] [Indexed: 07/02/2024] Open
Abstract
Introduction This study aimed to explore the anti-oxidative and anti-inflammatory properties of Lactococcus lactis subsp. lactis HFY14 (LLSLHFY14) and investigate its effects on the intestinal barrier, cranial nerve, and motor function in mice treated with antibiotics. Methods Mice were administered an antibiotic mixture (neomycin 5 mg/mL, vancomycin 25 mg/mL, amphotericin B 0.1 mg/mL, ampicillin 10 mg/mL, metronidazole file 5 mg/mL, and lipopolysaccharide 1.5 μg/mL) intraperitoneally, and oxidative stress and inflammatory markers in the serum and brain tissues, and liver index were measured. H&E staining was performed to detect pathological alterations in brain tissues. The expression of intestinal-barrier-related genes and that of genes involved in inflammatory pathways in the brain were detected using polymerase chain reaction (PCR). Results LLSLHFY14 administration extended the weight-loaded swimming and running times of mice and decreased the liver index. Moreover, the levels of malondialdehyde (MDA), interleukin-6 (IL-6), and tumor necrosis factor alpha (TNF-α) in the serum and brain tissue were reduced, whereas those of superoxide dismutase (SOD), glutathione (GSH), and interleukin-10 (IL-10) were elevated. Elevated brain expression of the protein kinase B (AKT)/cAMP-response element binding protein (CREB)/brain-derived neurotrophic factor (BDNF)/extracellular signal-regulated kinase 1 (ERK1) pathway, decreased brain expression of the IL-6 gene, and elevated cecum expression of zonula occludens-1 (ZO-1), occludin-1, and claudin-1 genes were noted. LLSLHFY14 supplementation significantly increased Bacteroidetes expression but decreased Firmicutes expression, thus increasing the Bacteroidetes/Firmicutes ratio. Discussion Overall, LLSLHFY14 supplementation ameliorated antibiotic-induced oxidative stress and inflammation in the mouse central nervous system, intestinal barrier dysfunction, and increased motor function, thus confirming its potential application as probiotics.
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Affiliation(s)
- Yang Yang
- College of Physical Education, Chengdu Sport University, Chengdu, Sichuan, China
| | - Yuanji Zhao
- School of Physical Education, Wuhan Sports University, Wuhan, Hubei, China
| | - Huan Lei
- College of Physical Education, Chengdu Sport University, Chengdu, Sichuan, China
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11
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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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12
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Vandecruys M, De Smet S, De Beir J, Renier M, Leunis S, Van Criekinge H, Glorieux G, Raes J, Vanden Wyngaert K, Nagler E, Calders P, Monbaliu D, Cornelissen V, Evenepoel P, Van Craenenbroeck AH. Revitalizing the Gut Microbiome in Chronic Kidney Disease: A Comprehensive Exploration of the Therapeutic Potential of Physical Activity. Toxins (Basel) 2024; 16:242. [PMID: 38922137 PMCID: PMC11209503 DOI: 10.3390/toxins16060242] [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] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/27/2024] Open
Abstract
Both physical inactivity and disruptions in the gut microbiome appear to be prevalent in patients with chronic kidney disease (CKD). Engaging in physical activity could present a novel nonpharmacological strategy for enhancing the gut microbiome and mitigating the adverse effects associated with microbial dysbiosis in individuals with CKD. This narrative review explores the underlying mechanisms through which physical activity may favorably modulate microbial health, either through direct impact on the gut or through interorgan crosstalk. Also, the development of microbial dysbiosis and its interplay with physical inactivity in patients with CKD are discussed. Mechanisms and interventions through which physical activity may restore gut homeostasis in individuals with CKD are explored.
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Affiliation(s)
- Marieke Vandecruys
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (M.V.); or (P.E.)
| | - Stefan De Smet
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, 3000 Leuven, Belgium;
| | - Jasmine De Beir
- Department of Rehabilitation Sciences, Ghent University, 9000 Ghent, Belgium; (J.D.B.); (P.C.)
| | - Marie Renier
- Group Rehabilitation for Internal Disorders, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium; (M.R.); (V.C.)
| | - Sofie Leunis
- Department of Microbiology, Immunology and Transplantation, Abdominal Transplantation, KU Leuven, 3000 Leuven, Belgium; (S.L.); (H.V.C.); (D.M.)
| | - Hanne Van Criekinge
- Department of Microbiology, Immunology and Transplantation, Abdominal Transplantation, KU Leuven, 3000 Leuven, Belgium; (S.L.); (H.V.C.); (D.M.)
| | - Griet Glorieux
- Department of Internal Medicine and Pediatrics, Nephrology Section, Ghent University Hospital, 9000 Ghent, Belgium; (G.G.); (K.V.W.); (E.N.)
| | - Jeroen Raes
- Department of Microbiology and Immunology, Rega Institute for Medical Research, 3000 Leuven, Belgium;
- VIB-KU Leuven Center for Microbiology, 3000 Leuven, Belgium
| | - Karsten Vanden Wyngaert
- Department of Internal Medicine and Pediatrics, Nephrology Section, Ghent University Hospital, 9000 Ghent, Belgium; (G.G.); (K.V.W.); (E.N.)
| | - Evi Nagler
- Department of Internal Medicine and Pediatrics, Nephrology Section, Ghent University Hospital, 9000 Ghent, Belgium; (G.G.); (K.V.W.); (E.N.)
| | - Patrick Calders
- Department of Rehabilitation Sciences, Ghent University, 9000 Ghent, Belgium; (J.D.B.); (P.C.)
| | - Diethard Monbaliu
- Department of Microbiology, Immunology and Transplantation, Abdominal Transplantation, KU Leuven, 3000 Leuven, Belgium; (S.L.); (H.V.C.); (D.M.)
- Transplantoux Foundation, 3000 Leuven, Belgium
| | - Véronique Cornelissen
- Group Rehabilitation for Internal Disorders, Department of Rehabilitation Sciences, KU Leuven, 3000 Leuven, Belgium; (M.R.); (V.C.)
| | - Pieter Evenepoel
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (M.V.); or (P.E.)
- Department of Nephrology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Amaryllis H. Van Craenenbroeck
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (M.V.); or (P.E.)
- Department of Nephrology, University Hospitals Leuven, 3000 Leuven, Belgium
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Jarosz ŁS, Socała K, Michalak K, Wiater A, Ciszewski A, Majewska M, Marek A, Grądzki Z, Wlaź P. The effect of psychoactive bacteria, Bifidobacterium longum Rosell®-175 and Lactobacillus rhamnosus JB-1, on brain proteome profiles in mice. Psychopharmacology (Berl) 2024; 241:925-945. [PMID: 38156998 PMCID: PMC11031467 DOI: 10.1007/s00213-023-06519-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
RATIONALE The gut microbiota may play an important role in the development and functioning of the mammalian central nervous system. The assumption of the experiment was to prove that the use of probiotic bacterial strains in the diet of mice modifies the expression of brain proteins involved in metabolic and immunological processes. OBJECTIVES AND RESULTS Albino Swiss mice were administered with Bifidobacterium longum Rosell®-175 or Lactobacillus rhamnosus JB-1 every 24 h for 28 days. Protein maps were prepared from hippocampal homogenates of euthanized mice. Selected proteins that were statistically significant were purified and concentrated and identified using MALDI-TOF mass spectrometry. Among the analysed samples, 13 proteins were identified. The mean volumes of calcyon, secreted frizzled-associated protein 3, and catalase in the hippocampus of mice from both experimental groups were statistically significantly higher than in the control group. In mice supplemented with Lactobacillus rhamnosus JB-1, a lower mean volume of fragrance binding protein 2, shadow of prion protein, and glycine receptor α4 subunit was observed compared to the control. CONCLUSION The psychobiotics Bifidobacterium longum Rosell®-175 and Lactobacillus rhamnosus JB-1enhances expression of proteins involved in the activation and maturation of nerve cells, as well as myelination and homeostatic regulation of neurogenesis in mice. The tested psychobiotics cause a decrease in the expression of proteins associated with CNS development and in synaptic transmission, thereby reducing the capacity for communication between nerve cells. The results of the study indicate that psychobiotic bacteria can be used in auxiliary treatment of neurological disorders.
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Affiliation(s)
- Łukasz S Jarosz
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland.
| | - Katarzyna Socała
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Katarzyna Michalak
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Adrian Wiater
- Department of Industrial and Environmental Microbiology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Artur Ciszewski
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Małgorzata Majewska
- Department of Industrial and Environmental Microbiology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Agnieszka Marek
- Department of Preventive Veterinary and Avian Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Zbigniew Grądzki
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Piotr Wlaź
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
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14
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Tao W, Zhang Y, Wang B, Nie S, Fang L, Xiao J, Wu Y. Advances in molecular mechanisms and therapeutic strategies for central nervous system diseases based on gut microbiota imbalance. J Adv Res 2024:S2090-1232(24)00124-3. [PMID: 38579985 DOI: 10.1016/j.jare.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/12/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUD Central nervous system (CNS) diseases pose a serious threat to human health, but the regulatory mechanisms and therapeutic strategies of CNS diseases need to be further explored. It has been demonstrated that the gut microbiota (GM) is closely related to CNS disease. GM structure disorders, abnormal microbial metabolites, intestinal barrier destruction and elevated inflammation exist in patients with CNS diseases and promote the development of CNS diseases. More importantly, GM remodeling alleviates CNS pathology to some extent. AIM OF REVIEW Here, we have summarized the regulatory mechanism of the GM in CNS diseases and the potential treatment strategies for CNS repair based on GM regulation, aiming to provide safer and more effective strategies for CNS repair from the perspective of GM regulation. KEY SCIENTIFIC CONCEPTS OF REVIEW The abundance and composition of GM is closely associated with the CNS diseases. On the basis of in-depth analysis of GM changes in mice with CNS disease, as well as the changes in its metabolites, therapeutic strategies, such as probiotics, prebiotics, and FMT, may be used to regulate GM balance and affect its microbial metabolites, thereby promoting the recovery of CNS diseases.
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Affiliation(s)
- Wei Tao
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Yanren Zhang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Bingbin Wang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Saiqun Nie
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Li Fang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Yanqing Wu
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China.
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15
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Wen X, Dong H, Zou W. The role of gut microorganisms and metabolites in intracerebral hemorrhagic stroke: a comprehensive review. Front Neurosci 2024; 18:1346184. [PMID: 38449739 PMCID: PMC10915040 DOI: 10.3389/fnins.2024.1346184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/09/2024] [Indexed: 03/08/2024] Open
Abstract
Intracerebral hemorrhagic stroke, characterized by acute hemorrhage in the brain, has a significant clinical prevalence and poses a substantial threat to individuals' well-being and productivity. Recent research has elucidated the role of gut microorganisms and their metabolites in influencing brain function through the microbiota-gut-brain axis (MGBA). This article provides a comprehensive review of the current literature on the common metabolites, short-chain fatty acids (SCFAs) and trimethylamine-N-oxide (TMAO), produced by gut microbiota. These metabolites have demonstrated the potential to traverse the blood-brain barrier (BBB) and directly impact brain tissue. Additionally, these compounds have the potential to modulate the parasympathetic nervous system, thereby facilitating the release of pertinent substances, impeding the buildup of inflammatory agents within the brain, and manifesting anti-inflammatory properties. Furthermore, this scholarly analysis delves into the existing dearth of investigations concerning the influence of gut microorganisms and their metabolites on cerebral functions, while also highlighting prospective avenues for future research.
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Affiliation(s)
- Xin Wen
- The First Clinical Medical College, Heilongjiang University Of Chinese Medicine, Harbin, China
| | - Hao Dong
- The First Clinical Medical College, Heilongjiang University Of Chinese Medicine, Harbin, China
| | - Wei Zou
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
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16
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Kamel M, Aleya S, Alsubih M, Aleya L. Microbiome Dynamics: A Paradigm Shift in Combatting Infectious Diseases. J Pers Med 2024; 14:217. [PMID: 38392650 PMCID: PMC10890469 DOI: 10.3390/jpm14020217] [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: 12/26/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024] Open
Abstract
Infectious diseases have long posed a significant threat to global health and require constant innovation in treatment approaches. However, recent groundbreaking research has shed light on a previously overlooked player in the pathogenesis of disease-the human microbiome. This review article addresses the intricate relationship between the microbiome and infectious diseases and unravels its role as a crucial mediator of host-pathogen interactions. We explore the remarkable potential of harnessing this dynamic ecosystem to develop innovative treatment strategies that could revolutionize the management of infectious diseases. By exploring the latest advances and emerging trends, this review aims to provide a new perspective on combating infectious diseases by targeting the microbiome.
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Affiliation(s)
- Mohamed Kamel
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 11221, Egypt
| | - Sami Aleya
- Faculty of Medecine, Université de Bourgogne Franche-Comté, Hauts-du-Chazal, 25030 Besançon, France
| | - Majed Alsubih
- Department of Civil Engineering, King Khalid University, Guraiger, Abha 62529, Saudi Arabia
| | - Lotfi Aleya
- Laboratoire de Chrono-Environnement, Université de Bourgogne Franche-Comté, UMR CNRS 6249, La Bouloie, 25030 Besançon, France
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17
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Yue M, Zhang L. Exploring the Mechanistic Interplay between Gut Microbiota and Precocious Puberty: A Narrative Review. Microorganisms 2024; 12:323. [PMID: 38399733 PMCID: PMC10892899 DOI: 10.3390/microorganisms12020323] [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: 01/02/2024] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
The gut microbiota has been implicated in the context of sexual maturation during puberty, with discernible differences in its composition before and after this critical developmental stage. Notably, there has been a global rise in the prevalence of precocious puberty in recent years, particularly among girls, where approximately 90% of central precocious puberty cases lack a clearly identifiable cause. While a link between precocious puberty and the gut microbiota has been observed, the precise causality and underlying mechanisms remain elusive. This narrative review aims to systematically elucidate the potential mechanisms that underlie the intricate relationship between the gut microbiota and precocious puberty. Potential avenues of exploration include investigating the impact of the gut microbiota on endocrine function, particularly in the regulation of hormones, such as gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH), and follicle-stimulating hormone (FSH). Additionally, this review will delve into the intricate interplay between the gut microbiome, metabolism, and obesity, considering the known association between obesity and precocious puberty. This review will also explore how the microbiome's involvement in nutrient metabolism could impact precocious puberty. Finally, attention is given to the microbiota's ability to produce neurotransmitters and neuroactive compounds, potentially influencing the central nervous system components involved in regulating puberty. By exploring these mechanisms, this narrative review seeks to identify unexplored targets and emerging directions in understanding the role of the gut microbiome in relation to precocious puberty. The ultimate goal is to provide valuable insights for the development of non-invasive diagnostic methods and innovative therapeutic strategies for precocious puberty in the future, such as specific probiotic therapy.
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Affiliation(s)
- Min Yue
- Microbiome-X, National Institute of Health Data Science of China & Institute for Medical Dataology, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Lei Zhang
- Microbiome-X, National Institute of Health Data Science of China & Institute for Medical Dataology, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
- Department of Biostatistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
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18
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Du Y, Song L, Dong X, Li H, Xie W, Wang Y, Che H. Long-Term Krill Oil Administration Alleviated Early Mild Cognitive Impairment in APP/PS1 Mice. Mol Nutr Food Res 2024; 68:e2200652. [PMID: 37937381 DOI: 10.1002/mnfr.202200652] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 05/06/2023] [Indexed: 11/09/2023]
Abstract
SCOPE Alzheimer's disease is an age-dependent neurodegenerative disorder. Mounting studies focus on the improvement of advanced cognitive impairment by dietary nutrients. Krill oil (KO), a rich source of DHA/EPA and astaxanthin, is effective in improving cognitive function. The study mainly investigates the protective effects of long-term KO administration on early cognitive impairment. METHODS AND RESULTS Results show that 2 months KO administration (50 and 100 mg kg-1 BW) can dramatically promote learning and memory abilities. Mechanism studies demonstrate that KO reduces amyloid β concentration by regulating the amyloidogenic pathway, inhibits neuro-inflammation via regulating TLR4-NLRP3 signaling pathway, and prevents neuron injure. KO supplementation also enhances gut barrier integrity, reduces serum lipopolysaccharide leakage, and alters the gut microbiota by reducing Helicobacteraceae, Lactobacillaceae proportion, increasing Dubosiella and Akkermansia relative abundance. Particularly, a significant increase of isovaleric acid, propionic acid, and acetic acid levels is observed after KO supplementation. Correlation analysis shows that short-chain fatty acids (SCFAs), gut microbiota, and cognitive function are strongly correlated. CONCLUSIONS The results reveal that KO relieves early mild cognitive impairment possibly for its role in mediating the gut microbiome-SCFAs-brain axis. Thus, KO may provide potential intervention strategies to prevent cognitive impairment in the early stages through the microbiota-gut-brain axis.
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Affiliation(s)
- Yufeng Du
- College of Marine Science and Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
| | - Lin Song
- College of Marine Science and Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
| | - Xiufang Dong
- College of Marine Science and Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
| | - Hongyan Li
- College of Marine Science and Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
| | - Wancui Xie
- College of Marine Science and Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
| | - Yuming Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong, 266003, China
| | - Hongxia Che
- College of Marine Science and Biological Engineering, Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China
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Li W, Lv BM, Quan Y, Zhu Q, Zhang HY. Associations between Serum Mineral Nutrients, Gut Microbiota, and Risk of Neurological, Psychiatric, and Metabolic Diseases: A Comprehensive Mendelian Randomization Study. Nutrients 2024; 16:244. [PMID: 38257137 PMCID: PMC10818407 DOI: 10.3390/nu16020244] [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: 11/29/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Recent observational studies have reported associations between serum mineral nutrient levels, gut microbiota composition, and neurological, psychiatric, and metabolic diseases. However, the causal effects of mineral nutrients on gut microbiota and their causal associations with diseases remain unclear and require further investigation. This study aimed to identify the associations between serum mineral nutrients, gut microbiota, and risk of neurological, psychiatric, and metabolic diseases using Mendelian randomization (MR). We conducted an MR study using the large-scale genome-wide association study (GWAS) summary statistics of 5 serum mineral nutrients, 196 gut microbes at the phylum, order, family, and genus levels, and a variety of common neurological, psychiatric, and metabolic diseases. Initially, the independent causal associations of mineral nutrients and gut microbiota with diseases were examined by MR. Subsequently, the causal effect of mineral nutrients on gut microbiota was estimated to investigate whether specific gut microbes mediated the association between mineral nutrients and diseases. Finally, we performed sensitivity analyses to assess the robustness of the study results. After correcting for multiple testing, we identified a total of 33 causal relationships among mineral nutrients, gut microbiota, and diseases. Specifically, we found 4 causal relationships between 3 mineral nutrition traits and 3 disease traits, 15 causal associations between 14 gut microbiota traits and 6 disease traits, and 14 causal associations involving 4 mineral nutrition traits and 15 gut microbiota traits. Meanwhile, 118 suggestive associations were identified. The current study reveals multiple causal associations between serum mineral nutrients, gut microbiota, risk of neurological, psychiatric, and metabolic diseases, and potentially provides valuable insights for subsequent nutritional therapies.
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Affiliation(s)
- Wang Li
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China; (W.L.); (B.-M.L.); (Y.Q.); (H.-Y.Z.)
| | - Bo-Min Lv
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China; (W.L.); (B.-M.L.); (Y.Q.); (H.-Y.Z.)
- Human Phenome Institute, Fudan University, Shanghai 200438, China
| | - Yuan Quan
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China; (W.L.); (B.-M.L.); (Y.Q.); (H.-Y.Z.)
| | - Qiang Zhu
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China; (W.L.); (B.-M.L.); (Y.Q.); (H.-Y.Z.)
- Key Laboratory of Smart Farming for Agricultural Animals, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Hong-Yu Zhang
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China; (W.L.); (B.-M.L.); (Y.Q.); (H.-Y.Z.)
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Abubaker S, Miri S, Mottawea W, Hammami R. Microbial Extracellular Vesicles in Host-Microbiota Interactions. Results Probl Cell Differ 2024; 73:475-520. [PMID: 39242390 DOI: 10.1007/978-3-031-62036-2_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2024]
Abstract
Extracellular vesicles have emerged as key players in cellular communication, influencing various physiological processes and pathophysiological progression, including digestion, immune response, and tissue repairs. Recently, a class of EVs derived from microbial communities has gained significant attention due to their pivotal role in intercellular communication and their potential as biomarkers and biotherapeutic agents. Microbial EVs are membrane-bound molecules encapsulating bioactive metabolites that modulate host physiological and pathological processes. This chapter discusses the evolving history of microbiota-produced EVs, including their discovery, characterization, current research status, and their diverse mechanisms of interaction with other microbes and hosts. This review also highlights the importance of EVs in health and disease and discusses recent research that shows promising results for the therapeutic potential of EVs.
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Affiliation(s)
- Sarah Abubaker
- Faculty of Health Sciences, School of Nutrition Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Saba Miri
- Faculty of Health Sciences, School of Nutrition Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Walid Mottawea
- Faculty of Health Sciences, School of Nutrition Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Riadh Hammami
- Faculty of Health Sciences, School of Nutrition Sciences, University of Ottawa, Ottawa, ON, Canada.
- Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada.
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21
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Thakkar A, Vora A, Kaur G, Akhtar J. Dysbiosis and Alzheimer's disease: role of probiotics, prebiotics and synbiotics. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:2911-2923. [PMID: 37284896 DOI: 10.1007/s00210-023-02554-x] [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: 02/11/2023] [Accepted: 05/26/2023] [Indexed: 06/08/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease characterized by dementia and the accumulation of amyloid beta in the brain. Recently, microbial dysbiosis has been identified as one of the major factors involved in the onset and progression of AD. Imbalance in gut microbiota is known to affect central nervous system (CNS) functions through the gut-brain axis and involves inflammatory, immune, neuroendocrine and metabolic pathways. An altered gut microbiome is known to affect the gut and BBB permeability, resulting in imbalance in levels of neurotransmitters and neuroactive peptides/factors. Restoration of levels of beneficial microorganisms in the gut has demonstrated promising effects in AD in pre-clinical and clinical studies. The current review enlists the important beneficial microbial species present in the gut, the effect of their metabolites on CNS, mechanisms involved in dysbiosis related to AD and the beneficial effects of probiotics on AD. It also highlights challenges involved in large-scale manufacturing and quality control of probiotic formulations.
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Affiliation(s)
- Ami Thakkar
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, Shri Vile Parle Kelavani Mandal's Narsee Monjee Institute of Management Studies, Mumbai, India
| | - Amisha Vora
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, Shri Vile Parle Kelavani Mandal's Narsee Monjee Institute of Management Studies, Mumbai, India.
| | - Ginpreet Kaur
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, Shri Vile Parle Kelavani Mandal's Narsee Monjee Institute of Management Studies, Mumbai, India
| | - Jamal Akhtar
- Central Council for Research in Unani Medicine, Ministry of AYUSH, New Delhi, India
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Hsieh TC, Chiang HC. IMD signaling in the gut and the brain modulates Amyloid-beta-induced deficits in Drosophila. Life Sci 2023; 332:122118. [PMID: 37741318 DOI: 10.1016/j.lfs.2023.122118] [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: 08/01/2023] [Revised: 09/12/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
AIMS Evidence indicates accumulating Aβ peptides in brain activates immune responses in neuronal and peripheral system, which may collaboratively influence pathogenesis of Alzheimer's disease (AD). We aim to investigate whether regulating intestinal innate immune signaling ameliorates Aβ-induced impairments in Drosophila melanogaster. MAIN METHODS Quantitative polymerase chain reaction (qPCR) was used to observe expression changes of innate immune responses related genes in brain and in gut under the circumstance of Aβ overexpressing in nerve system. Aversive olfactory conditioning and survival assay were used to investigate effects of modulating Attacin-A (AttA) and Dpitercin-A (DptA). Fluorometric assays of respiratory burst activity was introduced to explore whether reducing oxidative stress enables overexpressing intestinal AttA and DptA to reverse Aβ-induced deficits. KEY FINDINGS In vivo genetic analysis revealed that accumulating Aβ42 in neurons modulates innate immune signaling of the IMD pathway both in the brain and in the gut. Increased expression levels of the intestinal AttA and DptA improved learning performance and extended the lifespan of Aβ42 flies. The administration of apramycin led to alleviations of Aβ-induced behavioral changes, indicating that gram-negative bacteria are associated with the development of Aβ-induced pathologies. Further analysis showed that the neural expression of Aβ42 increased oxidative stress in the gut, which disrupted intestinal integrity and decreased learning performance. In addition, increased levels of AMPs targeting gram-negative bacteria and antioxidants reduced oxidative stress in the gut and reversed Aβ-induced behavioral damage. SIGNIFICANCE These findings suggest that innate immune responses in the gut play a pivotal role in modulating Aβ-induced pathologies.
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Affiliation(s)
- Tsung-Chi Hsieh
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsueh-Cheng Chiang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Pharmacology, National Cheng Kung University, Tainan, Taiwan.
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23
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Chen D, Zhang Y, Huang T, Jia J. Depression and risk of gastrointestinal disorders: a comprehensive two-sample Mendelian randomization study of European ancestry. Psychol Med 2023; 53:7309-7321. [PMID: 37183395 DOI: 10.1017/s0033291723000867] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
BACKGROUND Major depressive disorder (MDD) is clinically documented to co-occur with multiple gastrointestinal disorders (GID), but the potential causal relationship between them remains unclear. We aimed to evaluate the potential causal relationship of MDD with 4 GID [gastroesophageal reflux disease (GERD), irritable bowel syndrome (IBS), peptic ulcer disease (PUD), and non-alcoholic fatty liver disease (NAFLD)] using a two-sample Mendelian randomization (MR) design. METHODS We obtained genome-wide association data for MDD from a meta-analysis (N = 480 359), and for GID from the UK Biobank (N ranges: 332 601-486 601) and FinnGen (N ranges: 187 028-218 792) among individuals of European ancestry. Our primary method was inverse-variance weighted (IVW) MR, with a series of sensitivity analyses to test the hypothesis of MR. Individual study estimates were pooled using fixed-effect meta-analysis. RESULTS Meta-analyses IVW MR found evidence that genetically predicted MDD may increase the risk of GERD, IBS, PUD and NAFLD. Additionally, reverse MR found evidence of genetically predicted GERD or IBS may increase the risk of MDD. CONCLUSIONS Genetically predicted MDD may increase the risk of GERD, IBS, PUD and NAFLD. Genetically predicted GERD or IBS may increase the risk of MDD. The findings may help elucidate the mechanisms underlying the co-morbidity of MDD and GID. Focusing on GID symptoms in patients with MDD and emotional problems in patients with GID is important for the clinical management.
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Affiliation(s)
- Dongze Chen
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing, People's Republic of China
| | - Yali Zhang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100083, China
| | - Tao Huang
- Department of Epidemiology & Biostatistics, School of Public Health, Peking University, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing 100191 China
| | - Jinzhu Jia
- Department of Biostatistics, School of Public Health, Peking University, Beijing, China
- Center for Statistical Science, Peking University, Beijing, China
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24
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Mu J, Lin Q, Liang Y. An update on the effects of food-derived active peptides on the intestinal microecology. Crit Rev Food Sci Nutr 2023; 63:11625-11639. [PMID: 35791779 DOI: 10.1080/10408398.2022.2094889] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The intestinal microecology is a research hotspot, and neologisms related to the gut such as gut-brain axis, gut-lung axis, gut-bone axis, gut-skin axis, gut-renal axis, and gut-liver axis have emerged from recent research. Meticulous investigation has discovered that food-derived active peptides (FDAPs) are bioactive substances that optimize the structure of the gut microbiota to improve human health. However, few reviews have summarized and emphasized the nutritional value of FDAPs and their mechanisms of action in regulating the composition of the gut microbiota. We aim to provide an update on the latest research on FDAPs by comparing, summarizing, and discussing the potential food sources of FDAPs, their physiological functions, and regulatory effects on the intestinal microecology. The key findings are that few studies have analyzed the potential mechanisms and molecular pathways through which FDAPs maintain intestinal microecological homeostasis. We found that an imbalance in the ratio of Bacteroidetes and Firmicutes in the gut microbiota and abnormal production of short-chain fatty acids are key to the occurrence and development of various diseases. This review provides theoretical support for future comprehensive research on the digestion, distribution, metabolism, and excretion of FDAPs and the mechanisms underlying the interactions between FDAPs and the intestinal microecology.
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Affiliation(s)
- Jianfei Mu
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-Product Deep Processing/College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Qinlu Lin
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-Product Deep Processing/College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Ying Liang
- Molecular Nutrition Branch, National Engineering Research Center of Rice and By-Product Deep Processing/College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
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25
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Kim EJ, Kim JS, Park SE, Seo SH, Cho KM, Kwon SJ, Lee MH, Kim JH, Son HS. Association between Mild Cognitive Impairment and Gut Microbiota in Elderly Korean Patients. J Microbiol Biotechnol 2023; 33:1376-1383. [PMID: 37463853 PMCID: PMC10619554 DOI: 10.4014/jmb.2305.05009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/02/2023] [Accepted: 06/11/2023] [Indexed: 07/20/2023]
Abstract
Recent studies have confirmed that gut microbiota differs according to race or country in many diseases, including mild cognitive impairment (MCI) and Alzheimer's disease. However, no study has analyzed the characteristics of Korean MCI patients. This study was performed to observe the association between gut microbiota and MCI in the Korean elderly and to identify potential markers for Korean MCI patients. For this purpose, we collected fecal samples from Korean subjects who were divided into an MCI group (n = 40) and control group (n = 40) for 16S rRNA gene amplicon sequencing. Although no significant difference was observed in the overall microbial community profile, the relative abundance of several genera, including Bacteroides, Prevotella, and Akkermansia, showed significant differences between the two groups. In addition, the relative abundance of Prevotella was negatively correlated with that of Bacteroides (r = 0.733). This study may provide Korean-specific basic data for comparing the characteristics of the gut microbiota between Korean and non-Korean MCI patients.
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Affiliation(s)
- Eun-Ju Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Jae-Seong Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Seong-Eun Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | | | | | | | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Jae-Hong Kim
- Department of Acupuncture and Moxibustion Medicine, College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Hong-Seok Son
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
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26
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Pan I, Issac PK, Rahman MM, Guru A, Arockiaraj J. Gut-Brain Axis a Key Player to Control Gut Dysbiosis in Neurological Diseases. Mol Neurobiol 2023:10.1007/s12035-023-03691-3. [PMID: 37851313 DOI: 10.1007/s12035-023-03691-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/02/2023] [Indexed: 10/19/2023]
Abstract
Parkinson's disease is a chronic neuropathy characterised by the formation of Lewy bodies (misfolded alpha-synuclein) in dopaminergic neurons of the substantia nigra and other parts of the brain. Dopaminergic neurons play a vital role in generating both motor and non-motor symptoms. Finding therapeutic targets for Parkinson's disease (PD) is hindered due to an incomplete understanding of the disease's pathophysiology. Existing evidence suggests that the gut microbiota participates in the pathogenesis of PD via immunological, neuroendocrine, and direct neural mechanisms. Gut microbial dysbiosis triggers the loss of dopaminergic neurons via mitochondrial dysfunction. Gut dysbiosis triggers bacterial overgrowth in the small intestine, which increases the permeability barrier and induces systemic inflammation. It results in excessive stimulation of the innate immune system. In addition to that, activation of enteric neurons and enteric glial cells initiates the aggregation of alpha-synuclein. This alpha-synucleinopathy thus affects all levels of the brain-gut axis, including the central, autonomic, and enteric nervous systems. Though the neurobiological signaling cascade between the gut microbiome and the central nervous system is poorly understood, gut microbial metabolites may serve as a promising therapeutic strategy for PD. This article summarises all the known possible ways of bidirectional signal communication, i.e., the "gut-brain axis," where microbes from the middle gut interact with the brain and vice versa, and highlights a unique way to treat neurodegenerative diseases by maintaining homeostasis. The tenth cranial nerve (vagus nerve) plays a significant part in this signal communication. However, the leading regulatory factor for this axis is a diet that helps with microbial colonisation and brain function. Short-chain fatty acids (SCFAs), derived from microbially fermented dietary fibres, link host nutrition to maintain intestinal homeostasis. In addition to that, probiotics modulate cognitive function and the metabolic and behavioural conditions of the body. As technology advances, new techniques will emerge to study the tie-up between gut microbes and neuronal diseases.
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Affiliation(s)
- Ieshita Pan
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, Tamil Nadu, 602105, India.
| | - Praveen Kumar Issac
- Institute of Biotechnology, Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai, Tamil Nadu, 602105, India
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Ajay Guru
- Department of Cariology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulatur, Chengalpattu District, Tamil Nadu, 603203, India.
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Di Lauro M, Guerriero C, Cornali K, Albanese M, Costacurta M, Mercuri NB, Di Daniele N, Noce A. Linking Migraine to Gut Dysbiosis and Chronic Non-Communicable Diseases. Nutrients 2023; 15:4327. [PMID: 37892403 PMCID: PMC10609600 DOI: 10.3390/nu15204327] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/02/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
In the world, migraine is one of the most common causes of disability in adults. To date, there is no a single cause for this disorder, but rather a set of physio-pathogenic triggers in combination with a genetic predisposition. Among the factors related to migraine onset, a crucial role seems to be played by gut dysbiosis. In fact, it has been demonstrated how the intestine is able to modulate the central nervous system activities, through the gut-brain axis, and how gut dysbiosis can influence neurological pathologies, including migraine attacks. In this context, in addition to conventional pharmacological treatments for migraine, attention has been paid to an adjuvant therapeutic strategy based on different nutritional approaches and lifestyle changes able to positively modulate the gut microbiota composition. In fact, the restoration of the balance between the different gut bacterial species, the reconstruction of the gut barrier integrity, and the control of the release of gut-derived inflammatory neuropeptides, obtained through specific nutritional patterns and lifestyle changes, represent a possible beneficial additive therapy for many migraine subtypes. Herein, this review explores the bi-directional correlation between migraine and the main chronic non-communicable diseases, such as diabetes mellitus, arterial hypertension, obesity, cancer, and chronic kidney diseases, whose link is represented by gut dysbiosis.
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Affiliation(s)
- Manuela Di Lauro
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
| | - Cristina Guerriero
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
| | - Kevin Cornali
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
| | - Maria Albanese
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- Neurology Unit, Headache Center, Tor Vergata University Hospital, 00133 Rome, RM, Italy
| | - Micaela Costacurta
- Department of Surgical Sciences, University of Rome Tor Vergata, 00133 Rome, RM, Italy;
| | - Nicola Biagio Mercuri
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- Neurology Unit, Headache Center, Tor Vergata University Hospital, 00133 Rome, RM, Italy
| | - Nicola Di Daniele
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- Fondazione Leonardo per le Scienze Mediche Onlus, Policlinico Abano, 35031 Abano Terme, PD, Italy
| | - Annalisa Noce
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- UOSD Nephrology and Dialysis, Policlinico Tor Vergata, 00133 Rome, RM, Italy
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Murray N, Al Khalaf S, Bastiaanssen TFS, Kaulmann D, Lonergan E, Cryan JF, Clarke G, Khashan AS, O’Connor K. Compositional and Functional Alterations in Intestinal Microbiota in Patients with Psychosis or Schizophrenia: A Systematic Review and Meta-analysis. Schizophr Bull 2023; 49:1239-1255. [PMID: 37210594 PMCID: PMC10483467 DOI: 10.1093/schbul/sbad049] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
BACKGROUND AND HYPOTHESIS Intestinal microbiota is intrinsically linked to human health. Evidence suggests that the composition and function of the microbiome differs in those with schizophrenia compared with controls. It is not clear how these alterations functionally impact people with schizophrenia. We performed a systematic review and meta-analysis to combine and evaluate data on compositional and functional alterations in microbiota in patients with psychosis or schizophrenia. STUDY DESIGN Original studies involving humans and animals were included. The electronic databases PsycINFO, EMBASE, Web of Science, PubMed/MEDLINE, and Cochrane were systematically searched and quantitative analysis performed. STUDY RESULTS Sixteen original studies met inclusion criteria (1376 participants: 748 cases and 628 controls). Ten were included in the meta-analysis. Although observed species and Chao 1 show a decrease in diversity in people with schizophrenia compared with controls (SMD = -0.14 and -0.66 respectively), that did not reach statistical significance. We did not find evidence for variations in richness or evenness of microbiota between patients and controls overall. Differences in beta diversity and consistent patterns in microbial taxa were noted across studies. We found increases in Bifidobacterium, Lactobacillus, and Megasphaera in schizophrenia groups. Variations in brain structure, metabolic pathways, and symptom severity may be associated with compositional alterations in the microbiome. The heterogeneous design of studies complicates a similar evaluation of functional readouts. CONCLUSIONS The microbiome may play a role in the etiology and symptomatology of schizophrenia. Understanding how the implications of alterations in microbial genes for symptomatic expression and clinical outcomes may contribute to the development of microbiome targeted interventions for psychosis.
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Affiliation(s)
- Nuala Murray
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Sukainah Al Khalaf
- School of Public Health, University College Cork, Cork, Ireland
- INFANT Research Centre, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - David Kaulmann
- School of Public Health, University College Cork, Cork, Ireland
| | - Edgar Lonergan
- RISE, Early Intervention in Psychosis Service, South Lee Mental Health Services, Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Gerard Clarke
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Ali S Khashan
- School of Public Health, University College Cork, Cork, Ireland
- INFANT Research Centre, University College Cork, Cork, Ireland
| | - Karen O’Connor
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
- RISE, Early Intervention in Psychosis Service, South Lee Mental Health Services, Cork, Ireland
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29
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Dai Y, Shen Z, Khachatryan LG, Vadiyan DE, Karampoor S, Mirzaei R. Unraveling mechanistic insights into the role of microbiome in neurogenic hypertension: A comprehensive review. Pathol Res Pract 2023; 249:154740. [PMID: 37567034 DOI: 10.1016/j.prp.2023.154740] [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: 07/18/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
Neurogenic hypertension, a complex and multifactorial cardiovascular disorder, is known to be influenced by various genetic, environmental, and lifestyle factors. In recent years, there has been growing interest in the role of the gut microbiome in hypertension pathogenesis. The bidirectional communication between the gut microbiota and the central nervous system, known as the microbiota-gut-brain axis, has emerged as a crucial mechanism through which the gut microbiota exerts its influence on neuroinflammation, immune responses, and blood pressure regulation. Recent studies have shown how the microbiome has a substantial impact on a variety of physiological functions, such as cardiovascular health. The increased sympathetic activity to the gut may cause microbial dysbiosis, increased permeability of the gut, and increased inflammatory reactions by altering a number of intestinal bacteria producing short-chain fatty acids (SCFAs) and the concentrations of lipopolysaccharide (LPS) in the plasma. Collectively, these microbial metabolic and structural compounds stimulate sympathetic stimulation, which may be an important stage in the onset of hypertension. The result is an upsurge in peripheral and central inflammatory response. In addition, it has recently been shown that a link between the immune system and the gut microbiota might play a significant role in hypertension. The therapeutic implications of the gut microbiome including probiotic usage, prebiotics, dietary modifications, and fecal microbiota transplantation in neurogenic hypertension have also been found. A large body of research suggests that probiotic supplementation might help reduce chronic inflammation and hypertension that have an association with dysbiosis in the gut microbiota. Overall, this review sheds light on the intricate interplay between the gut microbiome and neurogenic hypertension, providing valuable insights for both researchers and clinicians. As our knowledge of the microbiome's role in hypertension expands, novel therapeutic strategies and diagnostic biomarkers may pave the way for more effective management and prevention of this prevalent cardiovascular disorder. Exploring the potential of the microbiome in hypertension offers an exciting avenue for future research and offers opportunities for precision medicine and improved patient care.
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Affiliation(s)
- Yusang Dai
- Physical Examination Center, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Zheng Shen
- Department of Cardiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Lusine G Khachatryan
- Department of Pediatric Diseases, N.F. Filatov Clinical Institute of Children's Health, I.M. Sechenov First Moscow State Medical University (Sechenov University), Russia
| | - Diana E Vadiyan
- Institute of Dentistry, Department of Pediatric, Preventive Dentistry and Orthodontics, I.M. Sechenov First Moscow State Medical University (Sechenov University), Russia
| | - Sajad Karampoor
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Rasoul Mirzaei
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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30
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Ayan E, DeMirci H, Serdar MA, Palermo F, Baykal AT. Bridging the Gap between Gut Microbiota and Alzheimer's Disease: A Metaproteomic Approach for Biomarker Discovery in Transgenic Mice. Int J Mol Sci 2023; 24:12819. [PMID: 37629000 PMCID: PMC10454110 DOI: 10.3390/ijms241612819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Alzheimer's Disease (AD) is a progressively debilitating form of dementia that affects millions of individuals worldwide. Although a vast amount of research has investigated the complex interplay between gut microbiota and neurodegeneration, the metaproteomic effects of microbiota on AD pathogenesis remain largely uncharted territory. This study aims to reveal the role of gut microbiota in AD pathogenesis, particularly regarding changes in the proteome and molecular pathways that are intricately linked to disease progression. We operated state-of-the-art Nano-Liquid Chromatography Mass Spectrometry (nLC-MS/MS) to compare the metaproteomic shifts of 3-month-old transgenic (3M-ALZ) and control (3M-ALM, Alzheimer's Littermate) mice, depicting the early onset of AD with those of 12-month-old ALZ and ALM mice displaying the late stage of AD. Combined with computational analysis, the outcomes of the gut-brain axis-focused inquiry furnish priceless knowledge regarding the intersection of gut microbiota and AD. Accordingly, our data indicate that the microbiota, proteome, and molecular changes in the intestine arise long before the manifestation of disease symptoms. Moreover, disparities exist between the normal-aged flora and the gut microbiota of late-stage AD mice, underscoring that the identified vital phyla, proteins, and pathways hold immense potential as markers for the early and late stages of AD. Our research endeavors to offer a comprehensive inquiry into the intricate interplay between gut microbiota and Alzheimer's Disease utilizing metaproteomic approaches, which have not been widely adopted in this domain. This highlights the exigency for further scientific exploration to elucidate the underlying mechanisms that govern this complex and multifaceted linkage.
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Affiliation(s)
- Esra Ayan
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul 34450, Turkey; (E.A.); (M.A.S.)
- Department of Molecular Biology and Genetics, Faculty of Science, Koç University, Istanbul 34450, Turkey;
| | - Hasan DeMirci
- Department of Molecular Biology and Genetics, Faculty of Science, Koç University, Istanbul 34450, Turkey;
- Koç University Isbank Center for Infectious Diseases (KUISCID), Koç University, Istanbul 34450, Turkey
- Stanford PULSE Institute, SLAC National Laboratory, Menlo Park, CA 94305, USA
| | - Muhittin Abdulkadir Serdar
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul 34450, Turkey; (E.A.); (M.A.S.)
| | | | - Ahmet Tarık Baykal
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul 34450, Turkey; (E.A.); (M.A.S.)
- Acıbadem Labmed Clinical Laboratories, R&D Center, İstanbul 34450, Turkey
- Department of Medical Biochemistry, Faculty of Medicine, Acibadem Mehmet Ali Aydınlar University, Istanbul 34450, Turkey
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Li L, Li Y, Wang P. Regulatory Effects Mediated by Enteromorpha prolifera Polysaccharide and Its Zn(II) Complex on Hypoglycemic Activity in High-Sugar High-Fat Diet-Fed Mice. Foods 2023; 12:2854. [PMID: 37569125 PMCID: PMC10417851 DOI: 10.3390/foods12152854] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/04/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
In order to investigate and develop functional foods of marine origin with hypoglycemic activity, Enteromorpha prolifera polysaccharide-Zn(II) (EZ) complex was first prepared by marine resourced E. prolifera polysaccharide (EP) and ZnSO4 and their anti-diabetes activities against high-sugar and high-fat-induced diabetic mice were evaluated. The detailed structural characterization of EZ was elucidated by UV-Vis spectroscopy, infrared spectroscopy, and monosaccharide composition determination. The pharmacological research suggests that EZ has a potent hypoglycemic effect on high-sugar and high-fat-induced diabetic mice by inhibiting insulin resistance, improving dyslipidemia, decreasing inflammatory status, repairing pancreas damage, as well as activating the IRS/PI3K/AKT signaling pathway and regulating GLUT2 gene expression. At the same time, microbiota analysis indicates that a high dose of EZ could enhance the abundance of dominant species, such as Staphylococcaceae, Planococcaceae, Muribaculaceae, Aerococcaceae, and Lacrobacillaceae, in intestinal microbiota distribution. Thus, EZ could be considered as a potential candidate for developing an ingredient of functional foods for Zn(II) supplements with hypoglycemic activity.
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Affiliation(s)
- Liyan Li
- Medical School, Huanghe Science and Technology College, Zhengzhou 450063, China;
| | - Yuanyuan Li
- Food Science and Engineering College, Ocean University of China, Qingdao 266003, China;
| | - Peng Wang
- Food Science and Engineering College, Ocean University of China, Qingdao 266003, China;
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Salia S, Martin Y, Burke FF, Myles LA, Jackman L, Halievski K, Bambico FR, Swift-Gallant A. Antibiotic-induced socio-sexual behavioral deficits are reversed via cecal microbiota transplantation but not androgen treatment. Brain Behav Immun Health 2023; 30:100637. [PMID: 37256194 PMCID: PMC10225889 DOI: 10.1016/j.bbih.2023.100637] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/03/2023] [Accepted: 05/07/2023] [Indexed: 06/01/2023] Open
Abstract
Recent evidence has demonstrated a sex-specific role of the gut microbiome on social behavior such as anxiety, possibly driven by a reciprocal relationship between the gut microbiome and gonadal hormones. For instance, gonadal hormones drive sex differences in gut microbiota composition, and certain gut bacteria can produce androgens from glucocorticoids. We thus asked whether the gut microbiome can influence androgen-dependent socio-sexual behaviors. We first treated C57BL/6 mice with broad-spectrum antibiotics (ABX) in drinking water to deplete the gut microbiota either transiently during early development (embryonic day 16-postnatal day [PND] 21) or in adulthood (PND 60-85). We hypothesized that if ABX interferes with androgens, then early ABX would interfere with critical periods for sexual differentiation of brain and thus lead to long-term decreases in males' socio-sexual behavior, while adult ABX would interfere with androgens' activational effects on behavior. We found that in males but not females, early and adult ABX treatment decreased territorial aggression, and adult ABX also decreased sexual odor preference. We then assessed whether testosterone and/or cecal microbiota transplantation (CMT) via oral gavage could prevent ABX-induced socio-sexual behavioral deficits in adult ABX-treated males. Mice were treated with same- or other-sex control cecum contents or with testosterone for two weeks. While testosterone was not effective in rescuing any behavior, we found that male CMT restored both olfactory preference and aggression in adult ABX male mice, while female CMT restored olfactory preference but not aggression. These results suggest sex-specific effects of the gut microbiome on socio-sexual behaviors, independent of androgens.
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Wang H, Zhao T, Liu Z, Danzengquzhen, Cisangzhuoma, Ma J, Li X, Huang X, Li B. The neuromodulatory effects of flavonoids and gut Microbiota through the gut-brain axis. Front Cell Infect Microbiol 2023; 13:1197646. [PMID: 37424784 PMCID: PMC10327292 DOI: 10.3389/fcimb.2023.1197646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/09/2023] [Indexed: 09/10/2023] Open
Abstract
Recent investigations show that dietary consumption of flavonoids could potentially confer neuroprotective effects through a variety of direct and indirect mechanisms. Numerous flavonoids have been shown to cross the BBB and accumulate within the central nervous system (CNS). Some of these compounds purportedly counteract the accumulation and deleterious effects of reactive oxygen species, fostering neuronal survival and proliferation by inhibiting neuroinflammatory and oxidative stress responses. Moreover, several studies suggest that gut microbiota may participate in regulating brain function and host behavior through the production and modulation of bioactive metabolites. Flavonoids may shape gut microbiota composition by acting as carbon substrates to promote the growth of beneficial bacteria that produce these neuroprotective metabolites, consequently antagonizing or suppressing potential pathogens. By influencing the microbiota-gut-brain axis through this selection process, flavonoids may indirectly improve brain health. This review examines the current state of research into the relationship between bioactive flavonoids, gut microbiota, and the gut-brain axis.
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Affiliation(s)
- Haoran Wang
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Tingting Zhao
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Zhenjiang Liu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, China
| | - Danzengquzhen
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
| | - Cisangzhuoma
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
| | - Jinying Ma
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
| | - Xin Li
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaodan Huang
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Bin Li
- Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, China
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Akinrinde A, Adigun K, Mustapha O. Cobalt-induced neuro-behavioural alterations are accompanied by profound Purkinje cell and gut-associated responses in rats. Environ Anal Health Toxicol 2023; 38:e2023010-0. [PMID: 37933104 PMCID: PMC10628406 DOI: 10.5620/eaht.2023010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 04/21/2023] [Indexed: 11/08/2023] Open
Abstract
Metal ions including cobalt (Co) ions reportedly exhibit neurotoxic and antimicrobial properties. We hypothesized that oral exposure to Co may have implications for gut-dysbiosis with possible alterations of microbiota-gut-brain signaling in the host. In this preliminary study, we sought to examine whether exposure of male Wistar rats to cobalt chloride (CoCl2) at 0, 25, 50 and 100 mg/kg for two weeks affects select neurobehavioural indices, vagus nerve and brain morphology along with evaluation of associated changes in faecal bacterial flora, faecal fatty acids and the morphology of the intestines. CoCl2-exposed rats showed a dose-dependent reduction in hanging latency in the hanging wire (HW) test, reduced tendency to recognize novel objects in a Novel Object recognition (NOR) test, but increased interaction with open arms in the elevated plus maze (EPM) test, compared to controls. There were dose-dependent reductions in total heterotrophic count, coliforms, E. coli, Enterococcal and Lactobacilli counts in the faeces. Administration of CoCl2 at 100 mg/kg evoked the appearance of unsaturated fatty acids including palmitoleic, oleic and linoleic acids in the faeces as detected by gas chromatography-flame ion detection (GD-FID) analysis using fatty acid methyl esters (FAME) standards. Histopathological examination revealed chromatolysis of Purkinje cells in the cerebellum, although no significant lesions were present in the vagus nerve isolated from all the groups. In the intestines, there was moderate to severe infiltration of inflammatory cells into the duodenum, ileum, jejunum and colon while villi erosions were seen prominently in the ileum. These initial findings suggest that short-term exposure to Co can lead to gut-associated changes that may underlie neurotoxicity and alterations in behavior induced by Co.
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Affiliation(s)
- Akinleye Akinrinde
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Kabirat Adigun
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Oluwaseun Mustapha
- Department of Veterinary Anatomy, College of Veterinary Medicine, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
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Yang L, Tian J. Changes of intestinal flora in children with febrile seizure. Medicine (Baltimore) 2023; 102:e33730. [PMID: 37335742 PMCID: PMC10194469 DOI: 10.1097/md.0000000000033730] [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: 02/16/2023] [Accepted: 04/19/2023] [Indexed: 06/21/2023] Open
Abstract
Febrile seizure (FS) is a highly recurrent neuro-system disorder in children that affects their nervous system development and quality of life. However, the pathogenesis of febrile seizures remains unclear. Our study aims to investigate the potential differences in the intestinal flora and metabolomics between healthy children and those with FS. By examining the relationship between specific flora and different metabolites, we hope to shed light on the pathogenesis of FS. Fecal specimens were collected from healthy children (n = 15) and children with febrile seizures (n = 15), and 16S rDNA sequencing was conducted to characterize intestinal flora. Subsequently, fecal samples from healthy (n = 6) and febrile seizure children (n = 6) were used to characterize metabolomics using linear discriminant analysis of effect size, orthogonal partial least squares discriminant analysis, Kyoto Encyclopedia of Genes and Genomes (pathway enrichment analysis), and Kyoto encyclopedia of genes and genomes topology analysis. Liquid chromatography-mass spectrometry was used to identify metabolites in the fecal samples. The intestinal microbiome in the febrile seizure children significantly differed from that in the healthy children at the phylum level. Ten differentially accumulated metabolites (xanthosine, (S)-abscisic acid, N-palmitoylglycine, (+/-)-2-(5-methyl-5-vinyl-tetrahydrofuran-2-yl) propionaldehyde, (R)-3-hydroxybutyrylcarnitine, lauroylcarnitine, oleoylethanolamide, tetradecyl carnitine, taurine, and lysoPC [18:1 (9z)/0:0] were considered the potential febrile seizure markers. Three metabolic pathways (taurine metabolism; glycine, serine, and threonine metabolism; and arginine biosynthesis) were found essential in febrile seizure. Bacteroides were significantly correlated with the 4 differential metabolites. Adjusting the balance of intestinal flora may be an effective method for preventing and treating febrile seizures.
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Affiliation(s)
- Lin Yang
- The Second Affiliated Hospital of Shandong First Medical University, Tai’an, China
- Children’s Hospital Affiliated to Suzhou University, Suzhou, China
| | - Jianmei Tian
- Children’s Hospital Affiliated to Suzhou University, Suzhou, China
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Zhang Y, Chen R, Zhang D, Qi S, Liu Y. Metabolite interactions between host and microbiota during health and disease: Which feeds the other? Biomed Pharmacother 2023; 160:114295. [PMID: 36709600 DOI: 10.1016/j.biopha.2023.114295] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 01/30/2023] Open
Abstract
Metabolites produced by the host and microbiota play a crucial role in how human bodies develop and remain healthy. Most of these metabolites are produced by microbiota and hosts in the digestive tract. Metabolites in the gut have important roles in energy metabolism, cellular communication, and host immunity, among other physiological activities. Although numerous host metabolites, such as free fatty acids, amino acids, and vitamins, are found in the intestine, metabolites generated by gut microbiota are equally vital for intestinal homeostasis. Furthermore, microbiota in the gut is the sole source of some metabolites, including short-chain fatty acids (SCFAs). Metabolites produced by microbiota, such as neurotransmitters and hormones, may modulate and significantly affect host metabolism. The gut microbiota is becoming recognized as a second endocrine system. A variety of chronic inflammatory disorders have been linked to aberrant host-microbiota interplays, but the precise mechanisms underpinning these disturbances and how they might lead to diseases remain to be fully elucidated. Microbiome-modulated metabolites are promising targets for new drug discovery due to their endocrine function in various complex disorders. In humans, metabolotherapy for the prevention or treatment of various disorders will be possible if we better understand the metabolic preferences of bacteria and the host in specific tissues and organs. Better disease treatments may be possible with the help of novel complementary therapies that target host or bacterial metabolism. The metabolites, their physiological consequences, and functional mechanisms of the host-microbiota interplays will be highlighted, summarized, and discussed in this overview.
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Affiliation(s)
- Yan Zhang
- Department of Anethesiology, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
| | - Rui Chen
- Department of Pediatrics, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
| | - DuoDuo Zhang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin Province 130021, People's Republic of China.
| | - Shuang Qi
- Department of Anethesiology, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
| | - Yan Liu
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
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Dargenio VN, Dargenio C, Castellaneta S, De Giacomo A, Laguardia M, Schettini F, Francavilla R, Cristofori F. Intestinal Barrier Dysfunction and Microbiota–Gut–Brain Axis: Possible Implications in the Pathogenesis and Treatment of Autism Spectrum Disorder. Nutrients 2023; 15:nu15071620. [PMID: 37049461 PMCID: PMC10096948 DOI: 10.3390/nu15071620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder with multifactorial etiology, characterized by impairment in two main functional areas: (1) communication and social interactions, and (2) skills, interests and activities. ASD patients often suffer from gastrointestinal symptoms associated with dysbiotic states and a “leaky gut.” A key role in the pathogenesis of ASD has been attributed to the gut microbiota, as it influences central nervous system development and neuropsychological and gastrointestinal homeostasis through the microbiota–gut–brain axis. A state of dysbiosis with a reduction in the Bacteroidetes/Firmicutes ratio and Bacteroidetes level and other imbalances is common in ASD. In recent decades, many authors have tried to study and identify the microbial signature of ASD through in vivo and ex vivo studies. In this regard, the advent of metabolomics has also been of great help. Based on these data, several therapeutic strategies, primarily the use of probiotics, are investigated to improve the symptoms of ASD through the modulation of the microbiota. However, although the results are promising, the heterogeneity of the studies precludes concrete evidence. The aim of this review is to explore the role of intestinal barrier dysfunction, the gut–brain axis and microbiota alterations in ASD and the possible role of probiotic supplementation in these patients.
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Ordoñez-Rodriguez A, Roman P, Rueda-Ruzafa L, Campos-Rios A, Cardona D. Changes in Gut Microbiota and Multiple Sclerosis: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20054624. [PMID: 36901634 PMCID: PMC10001679 DOI: 10.3390/ijerph20054624] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 05/13/2023]
Abstract
INTRODUCTION Multiple sclerosis (MS) is a chronic inflammatory neurodegenerative disease mediated by autoimmune reactions against myelin proteins and gangliosides in the grey and white matter of the brain and spinal cord. It is considered one of the most common neurological diseases of non-traumatic origin in young people, especially in women. Recent studies point to a possible association between MS and gut microbiota. Intestinal dysbiosis has been observed, as well as an alteration of short-chain fatty acid-producing bacteria, although clinical data remain scarce and inconclusive. OBJECTIVE To conduct a systematic review on the relationship between gut microbiota and multiple sclerosis. METHOD The systematic review was conducted in the first quarter of 2022. The articles included were selected and compiled from different electronic databases: PubMed, Scopus, ScienceDirect, Proquest, Cochrane, and CINAHL. The keywords used in the search were: "multiple sclerosis", "gut microbiota", and "microbiome". RESULTS 12 articles were selected for the systematic review. Among the studies that analysed alpha and beta diversity, only three found significant differences with respect to the control. In terms of taxonomy, the data are contradictory, but confirm an alteration of the microbiota marked by a decrease in Firmicutes, Lachnospiraceae, Bifidobacterium, Roseburia, Coprococcus, Butyricicoccus, Lachnospira, Dorea, Faecalibacterium, and Prevotella and an increase in Bacteroidetes, Akkermansia, Blautia, and Ruminocococcus. As for short-chain fatty acids, in general, a decrease in short-chain fatty acids, in particular butyrate, was observed. CONCLUSIONS Gut microbiota dysbiosis was found in multiple sclerosis patients compared to controls. Most of the altered bacteria are short-chain fatty acid (SCFA)-producing, which could explain the chronic inflammation that characterises this disease. Therefore, future studies should consider the characterisation and manipulation of the multiple sclerosis-associated microbiome as a focus of both diagnostic and therapeutic strategies.
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Affiliation(s)
| | - Pablo Roman
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, 04120 Almeria, Spain
- Health Research Center, University of Almería, 04120 Almeria, Spain
| | - Lola Rueda-Ruzafa
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, 04120 Almeria, Spain
- Correspondence:
| | - Ana Campos-Rios
- Laboratory of Neuroscience, CINBIO, University of Vigo, 36310 Vigo, Spain
- Laboratory of Neuroscience, Galicia Sur Health Research Institute (IISGS), 15706 Vigo, Spain
| | - Diana Cardona
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, 04120 Almeria, Spain
- Health Research Center, University of Almería, 04120 Almeria, Spain
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Zhou SY, Guo ZN, Yang Y, Qu Y, Jin H. Gut-brain axis: Mechanisms and potential therapeutic strategies for ischemic stroke through immune functions. Front Neurosci 2023; 17:1081347. [PMID: 36777635 PMCID: PMC9911679 DOI: 10.3389/fnins.2023.1081347] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 01/10/2023] [Indexed: 01/28/2023] Open
Abstract
After an ischemic stroke (IS) occurs, immune cells begin traveling to the brain and immune system from the gut and gastrointestinal tract, where most of them typically reside. Because the majority of the body's macrophages and more than 70% of the total immune cell pool are typically found within the gut and gastrointestinal tract, inflammation and immune responses in the brain and immune organs require the mobilization of a large number of immune cells. The bidirectional communication pathway between the brain and gut is often referred to as the gut-brain axis. IS usually leads to intestinal motility disorders, dysbiosis of intestinal microbiota, and a leaky gut, which are often associated with poor prognosis in patients with IS. In recent years, several studies have suggested that intestinal inflammation and immune responses play key roles in the development of IS, and thus may become potential therapeutic targets that can drive new therapeutic strategies. However, research on gut inflammation and immune responses after stroke remains in its infancy. A better understanding of gut inflammation and immune responses after stroke may be important for developing effective therapies. This review discusses the immune-related mechanisms of the gut-brain axis after IS and compiles potential therapeutic targets to provide new ideas and strategies for the future effective treatment of IS.
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Affiliation(s)
- Sheng-Yu Zhou
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Zhen-Ni Guo
- Department of Neurology, Stroke Center & Clinical Trial and Research Center for Stroke, The First Hospital of Jilin University, Changchun, China
| | - Yi Yang
- Department of Neurology, Stroke Center & Clinical Trial and Research Center for Stroke, The First Hospital of Jilin University, Changchun, China
| | - Yang Qu
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Hang Jin
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China,*Correspondence: Hang Jin,
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Ritchie G, Strodl E, Parham S, Bambling M, Cramb S, Vitetta L. An exploratory study of the gut microbiota in major depression with anxious distress. J Affect Disord 2023; 320:595-604. [PMID: 36209779 DOI: 10.1016/j.jad.2022.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 09/29/2022] [Accepted: 10/02/2022] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To explore differences in the diversity and composition of the gut microbiome between major depressive disorder (MDD) with and without anxious distress. METHODS The study comprised 117 participants (79 female, 36 male, 2 other, mean age 38.2 ± 13.4 years) with a current major depressive episode (MDE) with (n = 63) and without (n = 54) the anxious distress specifier. A clinical psychologist administered the structured clinical interview for the DSM-5-RV to confirm a diagnosis of depression. Participants provided stool samples which were immediately frozen and stored at -80 °C. These samples were analysed using the Illumina 16S Metagenomics sequencing protocol in which the sequencing primers target the V3 and V4 regions of the 16S rRNA gene. Participants also completed mental health questionnaires to assess severity of depression (BDI-II), generalized anxiety (GAD-7), and stress (PSS). RESULTS There were no significant group differences in α-diversity (Shannon's diversity Index; Simpson Index), richness (ACE; Chao1), (Pielou's) evenness, or beta diversity (Bray-Curtis dissimilarity index and weighted UniFrac distance) of gut bacteria. Significant group differences in the relative abundance of gut microbiota however were observed at each taxonomical level, including across 15 genera and 18 species. LIMITATIONS This was an exploratory study that needs to be replicated across larger samples and compared with a healthy control group. CONCLUSIONS The research contributes to knowledge of the depressive gut microbial profile unique to the anxious distress subtype of MDD.
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Affiliation(s)
- Gabrielle Ritchie
- Faculty of Health, Queensland University of Technology, Kelvin Grove, Queensland, Australia.
| | - Esben Strodl
- Faculty of Health, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Sophie Parham
- Faculty of Health, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Matthew Bambling
- Faculty of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Susanna Cramb
- Australian Centre for Health Services Innovation & Centre for Healthcare Transformation, Queensland University of Technology, Brisbane, Australia
| | - Luis Vitetta
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia.; Medlab Clinical, Sydney, New South Wales, Australia
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Vakili K, Fathi M, Yaghoobpoor S, Sayehmiri F, Nazerian Y, Nazerian A, Mohamadkhani A, Khodabakhsh P, Réus GZ, Hajibeygi R, Rezaei-Tavirani M. The contribution of gut-brain axis to development of neurological symptoms in COVID-19 recovered patients: A hypothesis and review of literature. Front Cell Infect Microbiol 2022; 12:983089. [PMID: 36619768 PMCID: PMC9815719 DOI: 10.3389/fcimb.2022.983089] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/25/2022] [Indexed: 12/24/2022] Open
Abstract
The gut microbiota undergoes significant alterations in response to viral infections, particularly the novel SARS-CoV-2. As impaired gut microbiota can trigger numerous neurological disorders, we suggest that the long-term neurological symptoms of COVID-19 may be related to intestinal microbiota disorders in these patients. Thus, we have gathered available information on how the virus can affect the microbiota of gastrointestinal systems, both in the acute and the recovery phase of the disease, and described several mechanisms through which this gut dysbiosis can lead to long-term neurological disorders, such as Guillain-Barre syndrome, chronic fatigue, psychiatric disorders such as depression and anxiety, and even neurodegenerative diseases such as Alzheimer's and Parkinson's disease. These mechanisms may be mediated by inflammatory cytokines, as well as certain chemicals such as gastrointestinal hormones (e.g., CCK), neurotransmitters (e.g., 5-HT), etc. (e.g., short-chain fatty acids), and the autonomic nervous system. In addition to the direct influences of the virus, repurposed medications used for COVID-19 patients can also play a role in gut dysbiosis. In conclusion, although there are many dark spots in our current knowledge of the mechanism of COVID-19-related gut-brain axis disturbance, based on available evidence, we can hypothesize that these two phenomena are more than just a coincidence and highly recommend large-scale epidemiologic studies in the future.
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Affiliation(s)
- Kimia Vakili
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mobina Fathi
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shirin Yaghoobpoor
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Sayehmiri
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yasaman Nazerian
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Ashraf Mohamadkhani
- Digestive Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Pariya Khodabakhsh
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Gislaine Z. Réus
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Ramtin Hajibeygi
- Department of Cardiology, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mostafa Rezaei-Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Consonni A, Miglietti M, De Luca CMG, Cazzaniga FA, Ciullini A, Dellarole IL, Bufano G, Di Fonzo A, Giaccone G, Baggi F, Moda F. Approaching the Gut and Nasal Microbiota in Parkinson's Disease in the Era of the Seed Amplification Assays. Brain Sci 2022; 12:1579. [PMID: 36421902 PMCID: PMC9688507 DOI: 10.3390/brainsci12111579] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 10/30/2023] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder often associated with pre-motor symptoms involving both gastrointestinal and olfactory tissues. PD patients frequently suffer from hyposmia, hyposalivation, dysphagia and gastrointestinal dysfunctions. During the last few years it has been speculated that microbial agents could play a crucial role in PD. In particular, alterations of the microbiota composition (dysbiosis) might contribute to the formation of misfolded α-synuclein, which is believed to be the leading cause of PD. However, while several findings confirmed that there might be an important link between intestinal microbiota alterations and PD onset, little is known about the potential contribution of the nasal microbiota. Here, we describe the latest findings on this topic by considering that more than 80% of patients with PD develop remarkable olfactory deficits in their prodromal disease stage. Therefore, the nasal microbiota might contribute to PD, eventually boosting the gut microbiota in promoting disease onset. Finally, we present the applications of the seed amplification assays to the study of the gut and olfactory mucosa of PD patients, and how they could be exploited to investigate whether pathogenic bacteria present in the gut and the nose might promote α-synuclein misfolding and aggregation.
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Affiliation(s)
- Alessandra Consonni
- Division of Neurology 4-Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Martina Miglietti
- Division of Neurology 4-Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Chiara Maria Giulia De Luca
- Division of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Federico Angelo Cazzaniga
- Division of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Arianna Ciullini
- Division of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Ilaria Linda Dellarole
- Division of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Giuseppe Bufano
- Division of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Alessio Di Fonzo
- Division of Neurology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Giorgio Giaccone
- Division of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Fulvio Baggi
- Division of Neurology 4-Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Fabio Moda
- Division of Neurology 5-Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
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Zhou C, Gong S, Xiang S, Liang L, Hu X, Huang R, Liao Z, Ma Y, Xiao Z, Qiu J. Changes and significance of gut microbiota in children with focal epilepsy before and after treatment. Front Cell Infect Microbiol 2022; 12:965471. [PMID: 36405958 PMCID: PMC9671114 DOI: 10.3389/fcimb.2022.965471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022] Open
Abstract
Objective To better understand the alterations in gut microbiota and metabolic pathways in children with focal epilepsy, and to further investigate the changes in the related gut microbiota and metabolic pathways in these children before and after treatment. Methods Ten patients with newly diagnosed focal epilepsy in Hunan Children’s Hospital from April, 2020 to October, 2020 were recruited into the case group. The case group was further divided into a pre-treatment subgroup and a post-treatment subgroup. Additionally, 14 healthy children of the same age were recruited into a control group. The microbial communities were analyzed using 16s rDNA sequencing data. Metastas and LEfSe were used to identify different bacteria between and within groups. The Kyoto Encyclopedia of Genes and Genomes database was used to KEGG enrichment analysis. Results There were significant differences in α diversity among the pre-treatment, post-treatment, and control groups. Besides, the differences in gut microbiota composition in 3 groups were identified by principal co-ordinates analysis (PCoA), which showed a similar composition of the pre-treatment and post-treatment subgroups. At the phyla level, the relative abundance of Actinobacteria in the pre-treatment subgroup was significantly higher than that in the control group, which decreased significantly after 3 months of treatment and showed no significant difference between the control group. In terms of the genus level, Escherichia/Shigella, Streptococcus, Collinsella, and Megamonas were enriched in the pre-treatment subgroup, while Faecalibacterium and Anaerostipes were enriched in the control group. The relative abundance of Escherichia/Shigella, Streptococcus, Collinsella, and Megamonas was reduced significantly after a three-month treatment. Despite some genera remaining significantly different between the post-treatment subgroup and control group, the number of significantly different genera decreased from 9 to 4 through treatment. Notably, we found that the carbohydrate metabolism, especially succinate, was related to focal epilepsy. Conclusion Children with focal epilepsy compared with healthy controls were associated with the statistically significant differences in the gut microbiota and carbohydrate metabolism. The differences were reduced and the carbohydrate metabolism improved after effective treatment. Our research may provide new directions for understanding the role of gut microbiota in the pathogenesis of focal epilepsy and better alternative treatments.
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Affiliation(s)
- Changci Zhou
- Academy of Pediatrics, Hengyang Medical School, University of South China, Hengyang, China
| | - Shuaizheng Gong
- Department of Hematology and Oncology, Hunan Children’s Hospital, Changsha, China
| | - Shiting Xiang
- Pediatrics Research Institute of Hunan Province, Hunan Children’s Hospital, Changsha, China
| | - Lijuan Liang
- Department of Emergency Center, Hunan Children’s Hospital, Changsha, China
| | - Xia Hu
- Department of Emergency Center, Hunan Children’s Hospital, Changsha, China
| | - Ruiwen Huang
- Department of Neonatology, Hunan Children’s Hospital, Changsha, China
| | - Zhenyu Liao
- Department of Neonatology, Hunan Children’s Hospital, Changsha, China
| | - Ye Ma
- Department of Neonatology, Hunan Children’s Hospital, Changsha, China
| | - Zhenghui Xiao
- Department of Emergency Center, Hunan Children’s Hospital, Changsha, China
- *Correspondence: Zhenghui Xiao, ; Jun Qiu,
| | - Jun Qiu
- Pediatrics Research Institute of Hunan Province, Hunan Children’s Hospital, Changsha, China
- *Correspondence: Zhenghui Xiao, ; Jun Qiu,
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Bashir Y, Khan AU. The interplay between the gut-brain axis and the microbiome: A perspective on psychiatric and neurodegenerative disorders. Front Neurosci 2022; 16:1030694. [PMID: 36389228 PMCID: PMC9650127 DOI: 10.3389/fnins.2022.1030694] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/12/2022] [Indexed: 07/26/2023] Open
Abstract
What is the effect of our gut microbial flora on brain? Does the gut microbiome have any role in the causation of psychiatric and neurodegenerative diseases? Does the effect of gut microbiota traverse the gut-brain axis? Questions like these have captured the interest and imagination of the scientific community for quite some time now. Research in the quest for answers to these questions, to unravel the potential role of the microbiota inhabiting the gut in controlling brain functions, has progressed manifold over the last two decades. Although the possibility of microbiome as a key susceptibility factor for neurological disorders viz. Parkinson's disease, Alzheimer's disease, multiple sclerosis, and autism spectrum disorder has bolstered by an increase in the clinical and preclinical evidence, the field is still in its infancy. Given the fact that the diversity of the gut microbiota is affected by various factors including the diet and exercise, the interpretation of such data becomes all the more difficult. Also, such studies have been mostly conducted on animal models, so there is a need for randomized controlled trials in human subjects, corroborated by longitudinal studies, to establish if modulating the gut microbiota can unravel novel therapeutic interventions. Exploring the genomic, metagenomic and metabolomic data from clinical subjects with psychiatric and neurological diseases can prove to be a helpful guide in individual treatment selection.
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Ren H, Gao S, Wang S, Wang J, Cheng Y, Wang Y, Wang Y. Effects of Dangshen Yuanzhi Powder on learning ability and gut microflora in rats with memory disorder. JOURNAL OF ETHNOPHARMACOLOGY 2022; 296:115410. [PMID: 35640741 DOI: 10.1016/j.jep.2022.115410] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yuanzhi Powder is a commonly used traditional Chinese medical formulae for its potency in enhancing memory and learning. In clinical practice, Yuanzhi Powder is a classic formula in TCM to treat amnesia of the type "deficiency of Qi, turbid phlegm harasses the head and eyes, and stagnation of phlegm converting into the fire". Our previous study showed that Yuanzhi Power, used together with Codonopsis Radix (Dangshen Yuanzhi Power, DYP), could improve learning and memory ability in animals with memory disorder (MD) and its efficacy is superior or equivalent to that of the Yuanzhi Power. AIM OF STUDY This study aimed to explore the regulatory mechanism of DYP through the "bacteria-gut-brain axis". MATERIALS AND METHODS The SD rats were divided randomly into control, model, positive, DYP-L, and DYP-H groups. Except for the control group, the rats were intraperitoneally injected with D-Gal (400 mg/kg) and gavaged with aluminum chloride (200 mg/kg) every day for 50 days. The rats in the DYP group were gavaged with DYP (6.67 and 13.34 g/kg, respectively) from the 15th day, once a day. The rats in the positive group were similarly administrated with piracetam (0.5 g/kg). The rats' bodyweight was recorded from the 16th day. The learning and memory ability of animals was tested by Morris water maze. The levels of MCP-1, NF-L, NSE, and TNF-α in serum were determined by Elisa kit, while the histopathology of duodenum and colon tissues was examined by H & E staining. The diversity of intestinal flora was sequenced and analyzed. In order to reveal the role of intestinal flora in DYP treatment of MD, the intestinal flora composition and the correlation analysis of intestinal flora and the above biochemical indexes were investigated. The intestinal flora function and biological metabolic pathways were predicted and analyzed by the KEGG database. RESULTS The MD animals' learning and spatial memory ability decreased significantly, compared with the normal group, accompanied by weight increase and intestinal flora disorder. DYP can improve the learning and memory ability of MD animals, and its efficacy may exert through the following ways: (i) callback the abnormal biochemical indexes of MCP-1, NF-L, NSE, and TNF-α; (ii) decreasing the relative ratio of Firmicutes/Bacteroidetes and repairing the pathology of MD animal intestinal mucosa; and (iii) the regulation of DYP on biochemical blood indexes of MD animals was significantly correlated with the regulation of intestinal flora; (iv) DYP rats showed a strong correlation between cognitive ability improvement and bodyweight loss; (v) besides, DYP could also regulate the metabolic pathways of carbohydrate, amino acid, nucleotide, and energy by affecting related biological functions. CONCLUSIONS The results supported that DYP can improve MD animals' learning and memory ability by restoring the intestinal flora disorder and callback the abnormal biochemical indexes in serum, closely related to the "bacteria-gut-brain axis".
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Affiliation(s)
- Haiqin Ren
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Shouqin Gao
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Shihui Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Jiamin Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yangang Cheng
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yan Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yingli Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China.
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Jo JK, Lee G, Nguyen CD, Park SE, Kim EJ, Kim HW, Seo SH, Cho KM, Kwon SJ, Kim JH, Son HS. Effects of Donepezil Treatment on Brain Metabolites, Gut Microbiota, and Gut Metabolites in an Amyloid Beta-Induced Cognitive Impairment Mouse Pilot Model. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196591. [PMID: 36235127 PMCID: PMC9572896 DOI: 10.3390/molecules27196591] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 12/12/2022]
Abstract
Accumulated clinical and biomedical evidence indicates that the gut microbiota and their metabolites affect brain function and behavior in various central nervous system disorders. This study was performed to investigate the changes in brain metabolites and composition of the fecal microbial community following injection of amyloid β (Aβ) and donepezil treatment of Aβ-injected mice using metataxonomics and metabolomics. Aβ treatment caused cognitive dysfunction, while donepezil resulted in the successful recovery of memory impairment. The Aβ + donepezil group showed a significantly higher relative abundance of Verrucomicrobia than the Aβ group. The relative abundance of 12 taxa, including Blautia and Akkermansia, differed significantly between the groups. The Aβ + donepezil group had higher levels of oxalate, glycerol, xylose, and palmitoleate in feces and oxalate, pyroglutamic acid, hypoxanthine, and inosine in brain tissues than the Aβ group. The levels of pyroglutamic acid, glutamic acid, and phenylalanine showed similar changes in vivo and in vitro using HT-22 cells. The major metabolic pathways in the brain tissues and gut microbiota affected by Aβ or donepezil treatment of Aβ-injected mice were related to amino acid pathways and sugar metabolism, respectively. These findings suggest that alterations in the gut microbiota might influence the induction and amelioration of Aβ-induced cognitive dysfunction via the gut–brain axis. This study could provide basic data on the effects of Aβ and donepezil on gut microbiota and metabolites in an Aβ-induced cognitive impairment mouse model.
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Affiliation(s)
- Jae-Kwon Jo
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Gihyun Lee
- Department of Korean Medicine, Dongshin University, Naju 58245, Korea
| | - Cong Duc Nguyen
- Department of Korean Medicine, Dongshin University, Naju 58245, Korea
| | - Seong-Eun Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Eun-Ju Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Hyun-Woo Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | | | | | | | - Jae-Hong Kim
- Department of Acupuncture and Moxibustion Medicine, College of Korean Medicine, Dongshin University, Naju 58245, Korea
- Correspondence: (J.-H.K.); (H.-S.S.); Tel.: +82-62-350-7209 (J.-H.K.); +82-2-3290-3053 (H.-S.S.)
| | - Hong-Seok Son
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
- Correspondence: (J.-H.K.); (H.-S.S.); Tel.: +82-62-350-7209 (J.-H.K.); +82-2-3290-3053 (H.-S.S.)
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Feng C, Li A, Yin C, Wang S, Jin W, Liu Y, Huo T, Jiang H. Realgar Alleviated Neuroinflammation Induced by High Protein and High Calorie Diet in Rats via the Microbiota-Gut-Brain Axis. Nutrients 2022; 14:nu14193958. [PMID: 36235611 PMCID: PMC9572528 DOI: 10.3390/nu14193958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Purpose: Gastrointestinal heat retention syndrome (GHRS) often occurs in adolescents, resulting into nervous system injury. Realgar, an arsenic mineral with neuroprotective effect, has been widely used to treat GHRS. However, its mechanism of action remains unknown. Methods: A GHRS rat model was established using a high protein and high calorie diet. We performed macroscopic characterization by assessing bowel sounds, hot/cold preference, anal temperature, and fecal features. Atomic fluorescence spectroscopy was employed to evaluate brain arsenic level while hippocampal ultrastructural changes were analyzed using transmission electron microscopy. In addition, inflammatory cytokines and BBB breakdown were analyzed by western blotting, immunofluorescence assays, and immunohistochemistry staining. We also evaluated hippocampal metabolites by LC-MS while fecal microorganisms were assessed by 16S rDNA sequencing. Results: Our data showed that the high protein and high calorie diet induced GHRS. The rat model depicted decreased bowel sounds, increased fecal characteristics score, preference for low temperature zone, and increased anal temperature. In addition, there was increase in inflammatory factors IL-6, Iba-1, and NF-κB p65 as well as reduced BBB structural protein Claudin-5 and Occludin. The data also showed appearance of hippocampus metabolites disorder and fecal microbial imbalance. Realgar treatment conferred a neuroprotective effect by inhibiting GHRS-specific characteristics, neuroinflammatory response, BBB impairment, metabolites disorder, and microbial imbalance in the GHRS rat model. Conclusion: Taken together, our analysis demonstrated that realgar confers a neuroprotective effect in GHRS rats through modulation of the microbiota-gut-brain axis.
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Affiliation(s)
- Cong Feng
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
- Laboratory of Research in Parkinson’s Disease and Related Disorders, Health Sciences Institute, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Aihong Li
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Chenhui Yin
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Siying Wang
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Weiyuan Jin
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Yi Liu
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Taoguang Huo
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Hong Jiang
- Department of Health Laboratory Technology, School of Public Health, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
- The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, China
- Correspondence:
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Kaiyrlykyzy A, Kozhakhmetov S, Babenko D, Zholdasbekova G, Alzhanova D, Olzhayev F, Baibulatova A, Kushugulova AR, Askarova S. Study of gut microbiota alterations in Alzheimer's dementia patients from Kazakhstan. Sci Rep 2022; 12:15115. [PMID: 36068280 PMCID: PMC9448737 DOI: 10.1038/s41598-022-19393-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022] Open
Abstract
We have investigated the diversity and composition of gut microbiotas isolated from AD (Alzheimer's disease) patients (n = 41) and healthy seniors (n = 43) from Nur-Sultan city (Kazakhstan). The composition of the gut microbiota was characterized by 16S ribosomal RNA sequencing. Our results demonstrated significant differences in bacterial abundance at phylum, class, order, and genus levels in AD patients compared to healthy aged individuals. Relative abundance analysis has revealed increased amount of taxa belonging to Acidobacteriota, Verrucomicrobiota, Planctomycetota and Synergistota phyla in AD patients. Among bacterial genera, microbiotas of AD participants were characterized by a decreased amount of Bifidobacterium, Clostridia bacterium, Castellaniella, Erysipelotrichaceae UCG-003, Roseburia, Tuzzerella, Lactobacillaceae and Monoglobus. Differential abundance analysis determined enriched genera of Christensenellaceae R-7 group, Prevotella, Alloprevotella, Eubacterium coprostanoligenes group, Ruminococcus, Flavobacterium, Ohtaekwangia, Akkermansia, Bacteroides sp. Marseille-P3166 in AD patients, whereas Levilactobacillus, Lactiplantibacillus, Tyzzerella, Eubacterium siraeum group, Monoglobus, Bacteroides, Erysipelotrichaceae UCG-003, Veillonella, Faecalibacterium, Roseburia, Haemophilus were depleted. We have also found correlations between some bacteria taxa and blood serum biochemical parameters. Adiponectin was correlated with Acidimicrobiia, Faecalibacterium, Actinobacteria, Oscillospiraceae, Prevotella and Christensenellaceae R-7. The Christensenellaceae R-7 group and Acidobacteriota were correlated with total bilirubin, while Firmicutes, Acidobacteriales bacterium, Castellaniella alcaligenes, Lachnospiraceae, Christensenellaceae and Klebsiella pneumoniae were correlated with the level of CRP in the blood of AD patients. In addition, we report the correlations found between disease severity and certain fecal bacteria. This is the first reported study demonstrating gut microbiota alterations in AD in the Central Asian region.
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Affiliation(s)
- Aiym Kaiyrlykyzy
- Laboratory of Bioengineering and Regenerative Medicine, Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.,Graduate School of Public Health, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Samat Kozhakhmetov
- Laboratory of Human Microbiome and Longevity, Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.,Kazakhstan Society of Human Microbiome Researchers, Nur-Sultan, Kazakhstan
| | - Dmitriy Babenko
- Medical University Karaganda, Karagandy, Kazakhstan.,Innovative Center ArtScience, Nur-Sultan, Kazakhstan
| | | | - Dinara Alzhanova
- Department of Neurology, Medical University Astana, Nur-Sultan, Kazakhstan
| | - Farkhad Olzhayev
- Laboratory of Bioengineering and Regenerative Medicine, Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Aida Baibulatova
- Laboratory of Bioengineering and Regenerative Medicine, Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Almagul R Kushugulova
- Laboratory of Human Microbiome and Longevity, Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan. .,Kazakhstan Society of Human Microbiome Researchers, Nur-Sultan, Kazakhstan.
| | - Sholpan Askarova
- Laboratory of Bioengineering and Regenerative Medicine, Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.
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Abdalkareem Jasim S, Jade Catalan Opulencia M, Alexis Ramírez-Coronel A, Kamal Abdelbasset W, Hasan Abed M, Markov A, Raheem Lateef Al-Awsi G, Azamatovich Shamsiev J, Thaeer Hammid A, Nader Shalaby M, Karampoor S, Mirzaei R. The emerging role of microbiota-derived short-chain fatty acids in immunometabolism. Int Immunopharmacol 2022; 110:108983. [PMID: 35750016 DOI: 10.1016/j.intimp.2022.108983] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/16/2022] [Accepted: 06/16/2022] [Indexed: 02/07/2023]
Abstract
The accumulating evidence revealed that microbiota plays a significant function in training, function, and the induction of host immunity. Once this interaction (immune system-microbiota) works correctly, it enables the production of protective responses against pathogens and keeps the regulatory pathways essential for maintaining tolerance to innocent antigens. This concept of immunity and metabolic activity redefines the realm of immunometabolism, paving the way for innovative therapeutic interventions to modulate immune cells through immune metabolic alterations. A body of evidence suggests that microbiota-derived metabolites, including short-chain fatty acids (SCFAs) such as butyrate, acetate, and propionate, play a key role in immune balance. SCFAs act on many cell types to regulate various vital biological processes, including host metabolism, intestinal function, and the immune system. Such SCFAs generated by gut bacteria also impact immunity, cellular function, and immune cell fate. This is a new concept of immune metabolism, and better knowledge about how lifestyle affects intestinal immunometabolism is crucial for preventing and treating disease. In this review article, we explicitly focus on the function of SCFAs in the metabolism of immune cells, especially macrophages, neutrophils, dendritic cells (DCs), B cells, T (Th) helper cells, and cytotoxic T cells (CTLs).
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Affiliation(s)
- Saade Abdalkareem Jasim
- Medical Laboratory Techniques Department, Al-maarif University College, Al-anbar-Ramadi, Iraq.
| | | | - Andrés Alexis Ramírez-Coronel
- Laboratory of Psychometrics, Comparative Psychology and Ethology (LABPPCE), Universidad Católica de Cuenca, Ecuador and Universidad CES, Medellín, Colombia, Cuenca, Ecuador.
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al Kharj, Saudi Arabia; Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt.
| | - Murtadha Hasan Abed
- Department of Medical Laboratory, College of Health and Medical Technology, Al-Ayen University, Thi-Qar, Iraq.
| | - Alexander Markov
- Tyumen State Medical University, Tyumen, Russian Federation; Tyumen Industrial University, Tyumen, Russian Federation.
| | | | - Jamshid Azamatovich Shamsiev
- Department of Pediatric Surgery, Anesthesiology and Intensive Care, Samarkand State Medical Institute, Samarkand, Uzbekistan; Research scholar, Department of Scientific Affairs, Tashkent State Dental Institute, Makhtumkuli Street 103, Tashkent, 100047, Uzbekistan.
| | - Ali Thaeer Hammid
- Computer Engineering Techniques Department, Faculty of Information Technology, Imam Ja'afar Al-Sadiq University, Baghdad, Iraq.
| | - Mohammed Nader Shalaby
- Biological Sciences and Sports Health Department, Faculty of Physical Education, Suez Canal University, Egypt.
| | - Sajad Karampoor
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Rasoul Mirzaei
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
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50
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Repetitive transcranial direct current stimulation modulates the brain-gut-microbiome axis in obese rodents. Pharmacol Rep 2022; 74:871-889. [PMID: 35945482 PMCID: PMC9585011 DOI: 10.1007/s43440-022-00401-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/20/2022] [Accepted: 07/26/2022] [Indexed: 11/23/2022]
Abstract
Background Complex interactions between the brain, gut and adipose tissue allow to recognize obesity as a neurometabolic disorder. The recent data have shown that gut microbiota can play a potential role in obesity development. Transcranial direct current stimulation (tDCS) is a safe and non-invasive technique to modulate the activity of cerebral cortex and other connected brain areas also in context of appetite control. The objective of this study was to evaluate the effects of repetitive anodal tDCS (AtDCS) of prefrontal cortex on feeding behavior, metabolic status and selected phyla of gut microbiota in rats with obesity induced by high-calorie diet (HCD). Methods 32 female Wistar rats were equally divided into 4 subgroups depending on diet effect (lean versus obese) and type of stimulation (active versus sham tDCS versus no stimulation). Feed intake, body weight, blood lipoproteins and leptin levels as well as Firmicutes and Bacteroidetes in intestines and stool were examined. Results HCD changed feeding behavior and metabolic parameters typically for obesity-related ranges and resulted in an abundance of Firmicutes at the expanse of Bacteroidetes in the large intestine and stool. AtDCS decreased appetite, body weight, and cholesterol levels. In addition, AtDCS reduced ratio of the average number of Firmicutes to average number of Bacteroidetes in all examined tissues. Conclusions Repetitive AtDCS is not only effective for appetite restriction but can also modulate gut microbiome composition which demonstrates the existence of the brain–gut–microbiome axis and points at this technique as a promising complementary treatment for obesity. However, the effects should be further replicated in human studies.
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