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Chaudhary S, Kaur P, Singh TA, Bano KS, Vyas A, Mishra AK, Singh P, Mehdi MM. The dynamic crosslinking between gut microbiota and inflammation during aging: reviewing the nutritional and hormetic approaches against dysbiosis and inflammaging. Biogerontology 2024; 26:1. [PMID: 39441393 DOI: 10.1007/s10522-024-10146-2] [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: 08/02/2024] [Accepted: 10/01/2024] [Indexed: 10/25/2024]
Abstract
The early-life gut microbiota (GM) is increasingly recognized for its contributions to human health and disease over time. Microbiota composition, influenced by factors like race, geography, lifestyle, and individual differences, is subject to change. The GM serves dual roles, defending against pathogens and shaping the host immune system. Disruptions in microbial composition can lead to immune dysregulation, impacting defense mechanisms. Additionally, GM aids digestion, releasing nutrients and influencing physiological systems like the liver, brain, and endocrine system through microbial metabolites. Dysbiosis disrupts intestinal homeostasis, contributing to age-related diseases. Recent studies are elucidating the bacterial species that characterize a healthy microbiota, defining what constitutes a 'healthy' colonic microbiota. The present review article focuses on the importance of microbiome composition for the development of homeostasis and the roles of GM during aging and the age-related diseases caused by the alteration in gut microbial communities. This article might also help the readers to find treatments targeting GM for the prevention of various diseases linked to it effectively.
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Affiliation(s)
- Sakshi Chaudhary
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Pardeep Kaur
- Department of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India
| | - Thokchom Arjun Singh
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Kaniz Shahar Bano
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Ashish Vyas
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Alok Kumar Mishra
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Prabhakar Singh
- Department of Biotechnology, School of Bio and Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India
| | - Mohammad Murtaza Mehdi
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
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Lee A, Yoo JS, Yoon EJ. Gut Microbiota and New Microbiome-Targeted Drugs for Clostridioides difficile Infections. Antibiotics (Basel) 2024; 13:995. [PMID: 39452261 PMCID: PMC11505460 DOI: 10.3390/antibiotics13100995] [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: 08/21/2024] [Revised: 10/16/2024] [Accepted: 10/18/2024] [Indexed: 10/26/2024] Open
Abstract
Clostridioides difficile is a major causative pathogen for antibiotic-associated diarrhea and C. difficile infections (CDIs) may lead to life-threatening diseases in clinical settings. Most of the risk factors for the incidence of CDIs, i.e., antibiotic use, treatment by proton pump inhibitors, old age, and hospitalization, are associated with dysbiosis of gut microbiota and associated metabolites and, consequently, treatment options for CDIs include normalizing the composition of the intestinal microbiome. In this review, with an introduction to the CDI and its global epidemiology, CDI-associated traits of the gut microbiome and its metabolites were reviewed, and microbiome-targeting treatment options were introduced, which was approved recently as a new drug by the United States Food and Drug Administration (U.S. FDA), rather than a medical practice.
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Affiliation(s)
| | | | - Eun-Jeong Yoon
- Division of Antimicrobial Resistance Research, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju-si 28159, Republic of Korea
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Gamboa J, Le GH, Wong S, Alteza EAI, Zachos KA, Teopiz KM, McIntyre RS. Impact of antidepressants on the composition of the gut microbiome: A systematic review and meta-analysis of in vivo studies. J Affect Disord 2024; 369:819-833. [PMID: 39424151 DOI: 10.1016/j.jad.2024.10.042] [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: 06/12/2024] [Revised: 09/12/2024] [Accepted: 10/09/2024] [Indexed: 10/21/2024]
Abstract
BACKGROUND There is a growing body of evidence suggesting that antidepressant drugs (ADs) alter the gut microbiome of persons with depressive disorders. Herein, we aim to investigate the gut microbial profile of AD-treated animal models of depression (MoD) and persons with major depressive disorder (MDD). METHODS We conducted a systematic review and meta-analysis investigating the gut microbiome community-level diversity and relative abundance of microbial taxa in AD-treated animal MoD and persons with MDD. RESULTS 24 human studies (898 participants) and 48 animal studies (849 subjects) were identified. Nonsignificant differences in gut microbial richness were observed between AD-treated and nonmedicated animals and humans. Beta diversity analysis in animals shows that AD intake is linked to a distinct gut microbial profile, a result not observed in humans. Consistent depletion of the genera Faecalibacterium and Parasutterella, along with enrichment of Bifidobacterium, was observed in AD-treated persons with MDD. In AD-treated animals, AD intake was associated with depletion of Flavobacterium and Adlercreutzia, and enrichment of Parabacteroides. LIMITATIONS The studies in our review were heterogeneous in their participant population, dietary intake, type of ADs used, length and dosing of AD treatment, and frequency and time of fecal sample collection. CONCLUSION ADs are associated with some changes to the gut microbiome. Future studies should evaluate the gut microbiome profiles between depressive disorder diagnoses that may reveal potential differences and predictors of AD response, as well as new combinatorial therapeutics with agents (e.g., specific-strain probiotic adjunctive treatment) that can ameliorate micro-composition gut dysbiosis.
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Affiliation(s)
- Jann Gamboa
- Brain and Cognition Discovery Foundation, Toronto, Ontario, Canada; Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Gia Han Le
- Brain and Cognition Discovery Foundation, Toronto, Ontario, Canada; Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada; Mood Disorder and Psychopharmacology Unit, University Health Network, Toronto, Canada
| | - Sabrina Wong
- Brain and Cognition Discovery Foundation, Toronto, Ontario, Canada; Department of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada; Mood Disorder and Psychopharmacology Unit, University Health Network, Toronto, Canada
| | | | - Kassandra A Zachos
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Kayla M Teopiz
- Brain and Cognition Discovery Foundation, Toronto, Ontario, Canada
| | - Roger S McIntyre
- Brain and Cognition Discovery Foundation, Toronto, Ontario, Canada; Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada; Department of Pharmacology & Toxicology, University of Toronto, Toronto, Ontario, Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada; Mood Disorder and Psychopharmacology Unit, University Health Network, Toronto, Canada.
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Gaber M, Wilson AS, Millen AE, Hovey KM, LaMonte MJ, Wactawski-Wende J, Ochs-Balcom HM, Cook KL. Visceral adiposity in postmenopausal women is associated with a pro-inflammatory gut microbiome and immunogenic metabolic endotoxemia. MICROBIOME 2024; 12:192. [PMID: 39367431 PMCID: PMC11453046 DOI: 10.1186/s40168-024-01901-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 08/06/2024] [Indexed: 10/06/2024]
Abstract
BACKGROUND Obesity, and in particular abdominal obesity, is associated with an increased risk of developing a variety of chronic diseases. Obesity, aging, and menopause are each associated with differential shifts in the gut microbiome. Obesity causes chronic low-grade inflammation due to increased lipopolysaccharide (LPS) levels which is termed "metabolic endotoxemia." We examined the association of visceral adiposity tissue (VAT) area, circulating endotoxemia markers, and the gut bacterial microbiome in a cohort of aged postmenopausal women. METHODS Fifty postmenopausal women (mean age 78.8 ± 5.3 years) who had existing adipose measurements via dual x-ray absorptiometry (DXA) were selected from the extremes of VAT: n = 25 with low VAT area (45.6 ± 12.5 cm2) and n = 25 with high VAT area (177.5 ± 31.3 cm2). Dietary intake used to estimate the Healthy Eating Index (HEI) score was assessed with a food frequency questionnaire. Plasma LPS, LPS-binding protein (LBP), anti-LPS antibodies, anti-flagellin antibodies, and anti-lipoteichoic acid (LTA) antibodies were measured by ELISA. Metagenomic sequencing was performed on fecal DNA. Female C57BL/6 mice consuming a high-fat or low-fat diet were treated with 0.4 mg/kg diet-derived fecal isolated LPS modeling metabolic endotoxemia, and metabolic outcomes were measured after 6 weeks. RESULTS Women in the high VAT group showed increased Proteobacteria abundance and a lower Firmicutes/Bacteroidetes ratio. Plasma LBP concentration was positively associated with VAT area. Plasma anti-LPS, anti-LTA, and anti-flagellin IgA antibodies were significantly correlated with adiposity measurements. Women with high VAT showed significantly elevated LPS-expressing bacteria compared to low VAT women. Gut bacterial species that showed significant associations with both adiposity and inflammation (anti-LPS IgA and LBP) were Proteobacteria (Escherichia coli, Shigella spp., and Klebsiella spp.) and Veillonella atypica. Healthy eating index (HEI) scores negatively correlated with % body fat and anti-LPS IgA antibodies levels. Preclinical murine model showed that high-fat diet-fed mice administered a low-fat diet fecal-derived LPS displayed reduced body weight, decreased % body fat, and improved glucose tolerance test parameters when compared with saline-injected or high-fat diet fecal-derived LPS-treated groups consuming a high-fat diet. CONCLUSIONS Increased VAT in postmenopausal women is associated with elevated gut Proteobacteria abundance and immunogenic metabolic endotoxemia markers. Low-fat diet-derived fecal-isolated LPS improved metabolic parameters in high-fat diet-fed mice giving mechanistic insights into potential pro-health signaling mediated by under-acylated LPS isoforms. Video Abstract.
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Grants
- W81XWH-20-1-0014 Congressionally Directed Medical Research Programs
- W81XWH-20-1-0014 Congressionally Directed Medical Research Programs
- W81XWH-20-1-0014 Congressionally Directed Medical Research Programs
- R01 DE013505, R01 DE024523 NIDCR NIH HHS
- R01 DE013505, R01 DE024523 NIDCR NIH HHS
- R01 DE013505, R01 DE024523 NIDCR NIH HHS
- R01 DE013505, R01 DE024523 NIDCR NIH HHS
- R01 DE013505, R01 DE024523 NIDCR NIH HHS
- HHSN268201600018C, HHSN268201600001C, HHSN268201600002C, HHSN268201600003C, and HHSN268201600004C NHLBI NIH HHS
- HHSN268201600018C, HHSN268201600001C, HHSN268201600002C, HHSN268201600003C, and HHSN268201600004C NHLBI NIH HHS
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Affiliation(s)
- Mohamed Gaber
- Department of Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Adam S Wilson
- Department of Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Amy E Millen
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, 14214, USA
| | - Kathleen M Hovey
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, 14214, USA
| | - Michael J LaMonte
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, 14214, USA
| | - Jean Wactawski-Wende
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, 14214, USA
| | - Heather M Ochs-Balcom
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, 14214, USA.
| | - Katherine L Cook
- Department of Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA.
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA.
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Su J, Li J, Azad MAK, Wang W, Luo Z, Wang J, Yin J, Yin Y, Tan B, Chen J. Dynamic distribution of gut microbiota-metabolites during post-weaning longissimus dorsi muscle development in Ningxiang pigs. Microbiol Spectr 2024; 12:e0081324. [PMID: 39162499 PMCID: PMC11452052 DOI: 10.1128/spectrum.00813-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 07/10/2024] [Indexed: 08/21/2024] Open
Abstract
Ningxiang pigs (NXPs) have a strong ability to deposit fat and intramuscular fat (IMF). However, microbiota-metabolite development and the role in IMF deposition have been rarely reported. Here, we compared the gut microbiota and metabolite profiles and IMF content at 30, 70, 150, 200, and 250 days of age of NXPs. The results revealed that the IMF content in NXPs increased significantly (P < 0.05) as the pigs' age extended. Additionally, the C14:0 content in the longissimus dorsi muscle at 30 and 70 days of age was significantly lower (P < 0.05) than that at 150 and 200 days of age. The Shannon index and ACE index showed a pattern of initially increasing and then decreasing. LEfSe analysis revealed that 41 differential bacteria at the genus level were specific to different growth stages, indicating the dominant bacteria's dynamic changes in the NXPs during different stages of age. Furthermore, we found that there were significant differences in cecal metabolism, the classification of differential metabolites revealed that 15.61% of compounds were fatty acyls, 13.98% were prenol lipids, and 10.57% were steroids and steroid derivatives. Next, the network analysis showed that Lachnospiraceae-XPB1014-group was positively related to 4-2-Aminophenyl-2-4-dioxobutanoic-acid, (Z)-3-Octene, 5-Methyl-furaldehyde, Propyl-2-4-decadienoate, which were also positively correlated with the IMF content. Our findings illustrated the dynamic distribution of cecal microbiota and metabolite composition at different growth stages in NXPs and their correlation with IMF deposition. These results provide a valuable insight into optimizing meat quality and overall health in post-weaning NXPs, providing a foundation for enhancement in pork product.IMPORTANCEUnderstanding the dynamic interplay between gut microbiota, metabolites, and intramuscular fat (IMF) deposition in pigs at various growth stages holds significant importance for the pork industry. This research sheds light on how the composition of gut microbiota and metabolites changes throughout the developmental stages of pigs, impacting IMF content in meat. By identifying specific bacterial genera and metabolites associated with IMF deposition, this study offers valuable insights for optimizing meat quality and health in post-weaning pigs. Such knowledge could lead to targeted interventions or management strategies aimed at enhancing pork product quality and overall profitability for producers. Ultimately, this research contributes to advancing our understanding of the complex relationship between gut microbiota, metabolites, and meat quality, offering practical implications for the swine industry.
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Affiliation(s)
- Jiayi Su
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Jinxuan Li
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Md. Abul Kalam Azad
- CAS Key Laboratory of Agro ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha, Hunan, China
| | - Wenliang Wang
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Zhili Luo
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Jing Wang
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Jie Yin
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
- CAS Key Laboratory of Agro ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha, Hunan, China
| | - Yulong Yin
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
- CAS Key Laboratory of Agro ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Changsha, Hunan, China
| | - Bie Tan
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Jiashun Chen
- Animal Nutritional Genome and Germplasm Innovation Research Center, College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
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Heidari H, Lawrence DA. An integrative exploration of environmental stressors on the microbiome-gut-brain axis and immune mechanisms promoting neurological disorders. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2024; 27:233-263. [PMID: 38994870 DOI: 10.1080/10937404.2024.2378406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
The microbiome-gut-brain axis is altered by environmental stressors such as heat, diet, and pollutants as well as microbes in the air, water, and soil. These stressors might alter the host's microbiome and symbiotic relationship by modifying the microbial composition or location. Compartmentalized mutualistic microbes promote the beneficial interactions in the host leading to circulating metabolites and hormones such as insulin and leptin that affect inter-organ functions. Inflammation and oxidative stress induced by environmental stressors may alter the composition, distribution, and activities of the microbes in the microbiomes such that the resultant metabolite and hormone changes are no longer beneficial. The microbiome-gut-brain axis and immune adverse changes that may accompany environmental stressors are reviewed for effects on innate and adaptive immune cells, which may make host immunity less responsive to pathogens and more reactive to self-antigens. Cardiovascular and fluid exchanges to organs might adversely alter organ functionality. Organs, especially the brain, need a consistent supply of nutrients and clearance of debris; disruption of these exchanges by stressors, and involvement of gut microbiome are discussed regarding neural dysfunctions with Alzheimer's disease, autistic spectrum disorders, viral infections, and autoimmune diseases. The focus of this review includes the manner in which environmental stressors may disrupt gut microbiota leading to adverse immune and hormonal influences on development of neuropathology related to hyperhomocysteinemia, inflammation, and oxidative stress, and how certain therapeutics may be beneficial. Strategies are explored to lessen detrimental effects of environmental stressors on central and peripheral health navigated toward (1) understanding neurological disorders and (2) promoting environmental and public health and well-being.
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Affiliation(s)
- Hajar Heidari
- Department of Biomedical Sciences, University at Albany School of Public Health, Rensselaer, NY, USA
| | - David A Lawrence
- Department of Biomedical Sciences, University at Albany School of Public Health, Rensselaer, NY, USA
- Department of Environmental Health Sciences, University at Albany School of Public Health, Rensselaer, NY, USA
- New York State Department of Health, Wadsworth Center, Albany, NY, USA
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Boverhoff D, Kool J, Pijnacker R, Ducarmon QR, Zeller G, Shetty S, Sie S, Mulder AC, van der Klis F, Franz E, Mughini-Gras L, van Baarle D, Fuentes S. Profiling the fecal microbiome and its modulators across the lifespan in the Netherlands. Cell Rep 2024; 43:114729. [PMID: 39264809 DOI: 10.1016/j.celrep.2024.114729] [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: 02/27/2024] [Revised: 05/23/2024] [Accepted: 08/22/2024] [Indexed: 09/14/2024] Open
Abstract
Defining what constitutes a healthy microbiome throughout our lives remains an ongoing challenge. Understanding to what extent host and environmental factors can influence it has been the primary motivation for large population studies worldwide. Here, we describe the fecal microbiome of 3,746 individuals (0-87 years of age) in a nationwide study in the Netherlands, in association with extensive questionnaires. We validate previous findings, such as infant-adult trajectories, and explore the collective impact of our variables, which explain over 40% of the variation in microbiome composition. We identify associations with less explored factors, particularly those ethnic related, which show the largest impact on the adult microbiome composition, diversity, metabolic profiles, and CAZy (carbohydrate-active enzyme) repertoires. Understanding the sources of microbiome variability is crucial, given its potential as a modifiable target with therapeutic possibilities. With this work, we aim to serve as a foundational element for the design of health interventions and fundamental research.
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Affiliation(s)
- David Boverhoff
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Virology & Immunology Research, Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, Groningen, the Netherlands
| | - Jolanda Kool
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Roan Pijnacker
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Quinten R Ducarmon
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Georg Zeller
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Sudarshan Shetty
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Virology & Immunology Research, Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, Groningen, the Netherlands
| | - Stephan Sie
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Annemieke Christine Mulder
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Fiona van der Klis
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Eelco Franz
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Lapo Mughini-Gras
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Debbie van Baarle
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Virology & Immunology Research, Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, Groningen, the Netherlands
| | - Susana Fuentes
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands.
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Bano N, Khan S, Ahamad S, Kanshana JS, Dar NJ, Khan S, Nazir A, Bhat SA. Microglia and gut microbiota: A double-edged sword in Alzheimer's disease. Ageing Res Rev 2024; 101:102515. [PMID: 39321881 DOI: 10.1016/j.arr.2024.102515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 09/06/2024] [Accepted: 09/19/2024] [Indexed: 09/27/2024]
Abstract
The strong association between gut microbiota (GM) and brain functions such as mood, behaviour, and cognition has been well documented. Gut-brain axis is a unique bidirectional communication system between the gut and brain, in which gut microbes play essential role in maintaining various molecular and cellular processes. GM interacts with the brain through various pathways and processes including, metabolites, vagus nerve, HPA axis, endocrine system, and immune system to maintain brain homeostasis. GM dysbiosis, or an imbalance in GM, is associated with several neurological disorders, including anxiety, depression, and Alzheimer's disease (AD). Conversely, AD is sustained by microglia-mediated neuroinflammation and neurodegeneration. Further, GM and their products also affect microglia-mediated neuroinflammation and neurodegeneration. Despite the evidence connecting GM dysbiosis and AD progression, the involvement of GM in modulating microglia-mediated neuroinflammation in AD remains elusive. Importantly, deciphering the mechanism/s by which GM regulates microglia-dependent neuroinflammation may be helpful in devising potential therapeutic strategies to mitigate AD. Herein, we review the current evidence regarding the involvement of GM dysbiosis in microglia activation and neuroinflammation in AD. We also discuss the possible mechanisms through which GM influences the functioning of microglia and its implications for therapeutic intervention. Further, we explore the potential of microbiota-targeted interventions, such as prebiotics, probiotics, faecal microbiota transplantation, etc., as a novel therapeutic strategy to mitigate neuroinflammation and AD progression. By understanding and exploring the gut-brain axis, we aspire to revolutionize the treatment of neurodegenerative disorders, many of which share a common theme of microglia-mediated neuroinflammation and neurodegeneration.
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Affiliation(s)
- Nargis Bano
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India
| | - Sameera Khan
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India
| | - Shakir Ahamad
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Jitendra Singh Kanshana
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburg, PA, USA.
| | - Nawab John Dar
- CNB, SALK Institute of Biological Sciences, La Jolla, CA 92037, USA.
| | - Sumbul Khan
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India
| | - Aamir Nazir
- Division of Neuroscience and Ageing Biology, CSIR-Central Drug Research Institute, Lucknow, UP, India; Academy of Scientific and Innovative Research, New Delhi, India.
| | - Shahnawaz Ali Bhat
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, India.
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Haghshenas L, Banihashemi S, Malekzadegan Y, Catanzaro R, Moghadam Ahmadi A, Marotta F. Microbiome as an endocrine organ and its relationship with eye diseases: Effective factors and new targeted approaches. World J Gastrointest Pathophysiol 2024; 15:96446. [PMID: 39355345 PMCID: PMC11440246 DOI: 10.4291/wjgp.v15.i5.96446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 09/04/2024] [Accepted: 09/13/2024] [Indexed: 09/20/2024] Open
Abstract
Microbiome is an endocrine organ that refers to both the complicated biological system of microbial species that colonize our bodies and their genomes and surroundings. Recent studies confirm the connection between the microbiome and eye diseases, which are involved in the pathogenesis of eye diseases, including age-related macular disorders, diabetic retinopathy, glaucoma, retinitis pigmentosa, dry eye, and uveitis. The aim of this review is to investigate the microbiome in relation to eye health. First, a brief introduction of the characteristics of the gut microorganisms terms of composition and work, the role of dysbiosis, the gut microbiome and the eye microbiome in the progression of eye illnesses are highlighted, then the relationship among the microbiome and the function of the immune system and eye diseases, the role of inflammation and aging and the immune system, It has been reviewed and finally, the control and treatment goals of microbiome and eye diseases, the role of food factors and supplements, biotherapy and antibiotics in relation to microbiome and eye health have been reviewed.
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Affiliation(s)
- Leila Haghshenas
- Department of Clinical Bioinformatics, Harvard Medical School, Boston, MA 02115, United States
| | - Sara Banihashemi
- Department of Bioscience, School of Science and Technology, Nottingham Trend University, Nottingham NG1 4FQ, United Kingdom
| | - Yalda Malekzadegan
- Department of Microbiology, Saveh University of Medical Sciences, Saveh 3919676651, Iran
| | - Roberto Catanzaro
- Department of Clinical and Experimental Medicine, University of Catania, Catania 95123, Catania, Italy
| | - Amir Moghadam Ahmadi
- Department of Neuroimmunology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, United States
| | - Francesco Marotta
- Department of Human Nutrition and Food Sciences, Texas Women University, Milano 20154, Italy
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Yuan Y, Li L, Wang J, Myagmar BO, Gao Y, Wang H, Wang Z, Zhang C, Zhang X. Gut microbiota-derived acetate promotes long-term recovery through angiogenesis guided by lymphatic ingrowth in older adults with stroke. Front Neurosci 2024; 18:1398913. [PMID: 39371609 PMCID: PMC11450648 DOI: 10.3389/fnins.2024.1398913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 08/20/2024] [Indexed: 10/08/2024] Open
Abstract
Introduction Ischemic stroke is a leading cause of morbidity and mortality in older adults. Therefore, in this study, we sought to understand the interplay between the microbiota, gut, and brain in the context of stroke in older adults. Objective To determine whether gut microbiota from younger individuals promotes recovery through angiogenesis in both elderly stroke patients and aged stroke mice, we explored the changes in gut microbiota and the correlation between short-chain fatty acids (SCFAs) and angiogenesis in the aged stroke population. Then, we altered the gut microbiome in aged mice by transplanting microbiota from younger donors before inducing experimental stroke to explore the mechanism by which gut microbiota-derived SCFAs promote angiogenesis. Methods Part I: We conducted a single-center, double-blind trial to compare gut microbiota diversity and SCFA levels in fecal samples from older stroke patients with those from younger stroke patients. Additionally, we measured levels of vascular endothelial growth factor (VEGF) and VEGFC levels in plasma to assess their correlation with SCFA levels. Part II: We performed fecal microbiota transplantation (FMT) 3 days before inducing ischemic stroke in aged male mice (16-18) via distal middle cerebral artery occlusion (dMCAO). The FMT was conducted using gut microbiomes from either young donors (2-3 months) or aged donors (16-18 months). Results In older stroke patients, gut microbiota diversity was significantly reduced compared to that in younger stroke patients. Furthermore, levels of acetate, a bacterially derived SCFA, were lower and positively correlated with angiogenesis markers (VEGF and VEGF-C). In aged stroke mice, transplantation of young microbiota improved stroke outcomes by promoting angiogenesis, which was facilitated by lymphatic ingrowth into the cortex. This protective effect was linked to gut microbiota-derived acetate, which enhanced lymphangiogenesis by replenishing acetyl coenzyme A. Conclusions (a) Gut microbiota-derived acetate promotes angiogenesis post-stroke and (b) lymphatic ingrowth into the cerebral cortex was observed in post-dMCAO mice. These findings suggest that selectively promoting SCFA-producing bacteria, particularly acetate-producers, could be a promising therapeutic strategy to reduce functional impairments in older stroke subjects.
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Affiliation(s)
- Yujia Yuan
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Linlin Li
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jingjing Wang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Bat-Otgon Myagmar
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yuxiao Gao
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Huan Wang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Zhao Wang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Cong Zhang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiangjian Zhang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Shijiazhuang, Hebei, China
- Hebei Vascular Homeostasis Key Laboratory for Neurology, Shijiazhuang, Hebei, China
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11
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Rykalo N, Riehl L, Kress M. The gut microbiome and the brain. Curr Opin Support Palliat Care 2024:01263393-990000000-00087. [PMID: 39250732 DOI: 10.1097/spc.0000000000000717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
PURPOSE OF REVIEW The importance of the gut microbiome for human health and well-being is generally accepted, and elucidating the signaling pathways between the gut microbiome and the host offers novel mechanistic insight into the (patho)physiology and multifaceted aspects of healthy aging and human brain functions. RECENT FINDINGS The gut microbiome is tightly linked with the nervous system, and gut microbiota are increasingly emerging as important regulators of emotional and cognitive performance. They send and receive signals for the bidirectional communication between gut and brain via immunological, neuroanatomical, and humoral pathways. The composition of the gut microbiota and the spectrum of metabolites and neurotransmitters that they release changes with increasing age, nutrition, hypoxia, and other pathological conditions. Changes in gut microbiota (dysbiosis) are associated with critical illnesses such as cancer, cardiovascular, and chronic kidney disease but also neurological, mental, and pain disorders, as well as chemotherapies and antibiotics affecting brain development and function. SUMMARY Dysbiosis and a concomitant imbalance of mediators are increasingly emerging both as causes and consequences of diseases affecting the brain. Understanding the microbiota's role in the pathogenesis of these disorders will have major clinical implications and offer new opportunities for therapeutic interventions.
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Affiliation(s)
- Nadiia Rykalo
- Department of Physiology and Medical Physics, Institute of Physiology, Medical University Innsbruck, Austria
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12
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Ravikrishnan A, Wijaya I, Png E, Chng KR, Ho EXP, Ng AHQ, Mohamed Naim AN, Gounot JS, Guan SP, Hanqing JL, Guan L, Li C, Koh JY, de Sessions PF, Koh WP, Feng L, Ng TP, Larbi A, Maier AB, Kennedy BK, Nagarajan N. Gut metagenomes of Asian octogenarians reveal metabolic potential expansion and distinct microbial species associated with aging phenotypes. Nat Commun 2024; 15:7751. [PMID: 39237540 PMCID: PMC11377447 DOI: 10.1038/s41467-024-52097-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 08/23/2024] [Indexed: 09/07/2024] Open
Abstract
While rapid demographic changes in Asia are driving the incidence of chronic aging-related diseases, the limited availability of high-quality in vivo data hampers our ability to understand complex multi-factorial contributions, including gut microbial, to healthy aging. Leveraging a well-phenotyped cohort of community-living octogenarians in Singapore, we used deep shotgun-metagenomic sequencing for high-resolution taxonomic and functional characterization of their gut microbiomes (n = 234). Joint species-level analysis with other Asian cohorts identified distinct age-associated shifts characterized by reduction in microbial richness, and specific Alistipes and Bacteroides species enrichment (e.g., Alistipes shahii and Bacteroides xylanisolvens). Functional analysis confirmed these changes correspond to metabolic potential expansion in aging towards alternate pathways synthesizing and utilizing amino-acid precursors, vis-à-vis dominant microbial guilds producing butyrate in gut from pyruvate (e.g., Faecalibacterium prausnitzii, Roseburia inulinivorans). Extending these observations to key clinical markers helped identify >10 robust microbial associations to inflammation, cardiometabolic and liver health, including potential probiotic species (e.g., Parabacteroides goldsteinii) and pathobionts (e.g., Klebsiella pneumoniae), highlighting the microbiome's role as biomarkers and potential targets for promoting healthy aging.
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Affiliation(s)
- Aarthi Ravikrishnan
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Indrik Wijaya
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Eileen Png
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Kern Rei Chng
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Eliza Xin Pei Ho
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Amanda Hui Qi Ng
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Ahmad Nazri Mohamed Naim
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Jean-Sebastien Gounot
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Shou Ping Guan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Jasinda Lee Hanqing
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Lihuan Guan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Chenhao Li
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Jia Yu Koh
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Paola Florez de Sessions
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore
| | - Woon-Puay Koh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), 30 Medical Drive, Brenner Centre for Molecular Medicine, Singapore, 117609, Republic of Singapore
| | - Lei Feng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Tze Pin Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Anis Larbi
- Singapore Immunology Network (SigN), Agency for Science Technology and Research (A*STAR), 8A Biomedical Grove, Immunos, Singapore, 138648, Republic of Singapore
| | - Andrea B Maier
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
- Department of Human Movement Sciences, @AgeAmsterdam, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Brian K Kennedy
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Niranjan Nagarajan
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore, 138672, Republic of Singapore.
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore.
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Rajasekaran JJ, Krishnamurthy HK, Bosco J, Jayaraman V, Krishna K, Wang T, Bei K. Oral Microbiome: A Review of Its Impact on Oral and Systemic Health. Microorganisms 2024; 12:1797. [PMID: 39338471 PMCID: PMC11434369 DOI: 10.3390/microorganisms12091797] [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: 07/01/2024] [Revised: 08/07/2024] [Accepted: 08/16/2024] [Indexed: 09/30/2024] Open
Abstract
PURPOSE OF REVIEW This review investigates the oral microbiome's composition, functions, influencing factors, connections to oral and systemic diseases, and personalized oral care strategies. RECENT FINDINGS The oral microbiome is a complex ecosystem consisting of bacteria, fungi, archaea, and viruses that contribute to oral health. Various factors, such as diet, smoking, alcohol consumption, lifestyle choices, and medical conditions, can affect the balance of the oral microbiome and lead to dysbiosis, which can result in oral health issues like dental caries, gingivitis, periodontitis, oral candidiasis, and halitosis. Importantly, our review explores novel associations between the oral microbiome and systemic diseases including gastrointestinal, cardiovascular, endocrinal, and neurological conditions, autoimmune diseases, and cancer. We comprehensively review the efficacy of interventions like dental probiotics, xylitol, oral rinses, fluoride, essential oils, oil pulling, and peptides in promoting oral health by modulating the oral microbiome. SUMMARY This review emphasizes the critical functions of the oral microbiota in dental and overall health, providing insights into the effects of microbial imbalances on various diseases. It underlines the significant connection between the oral microbiota and general health. Furthermore, it explores the advantages of probiotics and other dental care ingredients in promoting oral health and addressing common oral issues, offering a comprehensive strategy for personalized oral care.
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Affiliation(s)
- John J. Rajasekaran
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | | | - Jophi Bosco
- Vibrant America LLC, Santa Clara, CA 95054, USA;
| | - Vasanth Jayaraman
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | - Karthik Krishna
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | - Tianhao Wang
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
| | - Kang Bei
- Vibrant Sciences LLC, Santa Clara, CA 95054, USA; (H.K.K.); (V.J.); (K.K.); (T.W.); (K.B.)
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14
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Batitucci G, Abud GF, Ortiz GU, Belisário LF, Travieso SG, de Lima Viliod MC, Venturini ACR, de Freitas EC. Sarcobesity: New paradigms for healthy aging related to taurine supplementation, gut microbiota and exercise. Ageing Res Rev 2024; 101:102460. [PMID: 39173917 DOI: 10.1016/j.arr.2024.102460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 07/16/2024] [Accepted: 08/15/2024] [Indexed: 08/24/2024]
Abstract
Enigmatic sarcopenic obesity is still a challenge for science and adds to the global public health burden. The progressive accumulation of body fat combined with a dysfunctional skeletal muscle structure and composition, oxidative stress, mitochondrial dysfunction, and anabolic resistance, among other aggravating factors, together represent the seriousness and complexity of treating the metabolic disorder of sarcobesity in aging. For this reason, further studies are needed that encourage the support of therapeutic management. It is along these lines that we direct the reader to therapeutic approaches that demonstrate important, but still obscure, outcomes in the physiological conditions of sarcobesity, such as the role of taurine in modulating inflammatory and antioxidant mechanisms in muscle and adipose tissue, as well as the management of gut microbiota, able to systemically re-establish the structure and function of the gut-muscle axis, in addition to the merits of physical exercise as an instrument to improve muscular health and lifestyle quality.
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Affiliation(s)
- Gabriela Batitucci
- School of Medical Sciences, Obesity and Comorbidities Research Center, University of Campinas - UNICAMP, Campinas, Sao Paulo, Brazil
| | - Gabriela Ferreira Abud
- Department of Health Sciences, Ribeirao Preto Medical School, University of São Paulo - FMRP/USP, Ribeirao Preto, Sao Paulo, Brazil
| | - Gabriela Ueta Ortiz
- Department of Health Sciences, Ribeirao Preto Medical School, University of São Paulo - FMRP/USP, Ribeirao Preto, Sao Paulo, Brazil
| | - Lucas Fernandes Belisário
- Laboratory of Exercise Physiology and Metabolism, School of Physical Education and Sports of Ribeirao Preto, University of Sao Paulo - EEFERP/USP, Ribeirao Preto, Brazil
| | - Sofia Germano Travieso
- Department of Health Sciences, Ribeirao Preto Medical School, University of São Paulo - FMRP/USP, Ribeirao Preto, Sao Paulo, Brazil
| | - Marcela Coffacci de Lima Viliod
- Laboratory of Exercise Physiology and Metabolism, School of Physical Education and Sports of Ribeirao Preto, University of Sao Paulo - EEFERP/USP, Ribeirao Preto, Brazil
| | - Ana Cláudia Rossini Venturini
- Laboratory of Exercise Physiology and Metabolism, School of Physical Education and Sports of Ribeirao Preto, University of Sao Paulo - EEFERP/USP, Ribeirao Preto, Brazil
| | - Ellen Cristini de Freitas
- Department of Health Sciences, Ribeirao Preto Medical School, University of São Paulo - FMRP/USP, Ribeirao Preto, Sao Paulo, Brazil; Laboratory of Exercise Physiology and Metabolism, School of Physical Education and Sports of Ribeirao Preto, University of Sao Paulo - EEFERP/USP, Ribeirao Preto, Brazil.
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15
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Howard A, Carroll-Portillo A, Alcock J, Lin HC. Dietary Effects on the Gut Phageome. Int J Mol Sci 2024; 25:8690. [PMID: 39201374 PMCID: PMC11354428 DOI: 10.3390/ijms25168690] [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: 06/20/2024] [Revised: 07/29/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
As knowledge of the gut microbiome has expanded our understanding of the symbiotic and dysbiotic relationships between the human host and its microbial constituents, the influence of gastrointestinal (GI) microbes both locally and beyond the intestine has become evident. Shifts in bacterial populations have now been associated with several conditions including Crohn's disease (CD), Ulcerative Colitis (UC), irritable bowel syndrome (IBS), Alzheimer's disease, Parkinson's Disease, liver diseases, obesity, metabolic syndrome, anxiety, depression, and cancers. As the bacteria in our gut thrive on the food we eat, diet plays a critical role in the functional aspects of our gut microbiome, influencing not only health but also the development of disease. While the bacterial microbiome in the context of disease is well studied, the associated gut phageome-bacteriophages living amongst and within our bacterial microbiome-is less well understood. With growing evidence that fluctuations in the phageome also correlate with dysbiosis, how diet influences this population needs to be better understood. This review surveys the current understanding of the effects of diet on the gut phageome.
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Affiliation(s)
- Andrea Howard
- School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA;
| | - Amanda Carroll-Portillo
- Division of Gastroenterology and Hepatology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Joe Alcock
- Department of Emergency Medicine, University of New Mexico, Albuquerque, NM 87131, USA;
| | - Henry C. Lin
- Division of Gastroenterology and Hepatology, University of New Mexico, Albuquerque, NM 87131, USA
- Medicine Service, New Mexico VA Health Care System, Albuquerque, NM 87108, USA
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16
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Sait AM, Day PJR. Interconnections between the Gut Microbiome and Alzheimer's Disease: Mechanisms and Therapeutic Potential. Int J Mol Sci 2024; 25:8619. [PMID: 39201303 PMCID: PMC11354889 DOI: 10.3390/ijms25168619] [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: 06/18/2024] [Revised: 07/23/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease that is known to accumulate amyloid-β (Aβ) and tau protein. Clinical studies have not identified pathogenesis mechanisms or produced an effective cure for AD. The Aβ monoclonal antibody lecanemab reduces Aβ plaque formation for the treatment of AD, but more studies are required to increase the effectiveness of drugs to reduce cognitive decline. The lack of AD therapy targets and evidence of an association with an acute neuroinflammatory response caused by several bacteria and viruses in some individuals has led to the establishment of the infection hypothesis during the last 10 years. How pathogens cross the blood-brain barrier is highly topical and is seen to be pivotal in proving the hypothesis. This review summarizes the possible role of the gut microbiome in the pathogenesis of AD and feasible therapeutic approaches and current research limitations.
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Affiliation(s)
- Ahmad M. Sait
- Medical Laboratory Science, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Regenerative Medicine Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Philip J. R. Day
- Division of Evolution and Genomic Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK
- Department of Medicine, University of Cape Town, Cape Town 7925, South Africa
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Lamba A, Taneja V. Gut microbiota as a sensor of autoimmune response and treatment for rheumatoid arthritis. Immunol Rev 2024; 325:90-106. [PMID: 38867408 PMCID: PMC11338721 DOI: 10.1111/imr.13359] [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] [Indexed: 06/14/2024]
Abstract
Rheumatoid arthritis (RA) is considered a multifactorial condition where interaction between the genetic and environmental factors lead to immune dysregulation causing autoreactivity. While among the various genetic factors, HLA-DR4 and DQ8, have been reported to be the strongest risk factors, the role of various environmental factors has been unclear. Though events initiating autoreactivity remain unknown, a mucosal origin of RA has gained attention based on the recent observations with the gut dysbiosis in patients. However, causality of gut dysbiosis has been difficult to prove in humans. Mouse models, especially mice expressing RA-susceptible and -resistant HLA class II genes have helped unravel the complex interactions between genetic factors and gut microbiome. This review describes the interactions between HLA genes and gut dysbiosis in sex-biased preclinical autoreactivity and discusses the potential use of endogenous commensals as indicators of treatment efficacy as well as therapeutic tool to suppress pro-inflammatory response in rheumatoid arthritis.
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Affiliation(s)
| | - Veena Taneja
- Department of Immunology and Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN, USA
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Valtierra Oba ER, Anguiano Morán AC, Calderón Cortes E, Valtierra Oba MI, Lemus Loeza BM, Rodríguez-Orozco AR. Irritable Bowel Syndrome in the Elderly Population: A Comprehensive Review. Cureus 2024; 16:e68156. [PMID: 39347183 PMCID: PMC11439088 DOI: 10.7759/cureus.68156] [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] [Accepted: 08/29/2024] [Indexed: 10/01/2024] Open
Abstract
Irritable bowel syndrome (IBS) is a fairly common functional digestive disorder; it occurs at any age but it is more common in adults and older adults. Patients experience a series of symptoms in which abdominal pain and changes in bowel movements stand out; some studies have revealed a possible association between IBS and psychological problems, such as anxiety and depression. Recent findings point to disorders of gut-brain interaction, disruption and alteration of gut microbiota and dysbiosis as key factors in the etiopathogenesis of IBS; aging is also one the factors involved. Most patients diagnosed with IBS required pharmacotherapy, greater caution needs to be considered when treating older patients because of the risk-benefit profile in the elderly. In this scenario, probiotics and non-pharmacological treatments appear as safe and accessible options. Clinicians must take into consideration the unique biopsychosocial factors in older adults when treating IBS. We aim to review critically recent literature on the topic of IBS as there is a need for consolidated guidelines.
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Munteanu C, Schwartz B. Interactions between Dietary Antioxidants, Dietary Fiber and the Gut Microbiome: Their Putative Role in Inflammation and Cancer. Int J Mol Sci 2024; 25:8250. [PMID: 39125822 PMCID: PMC11311432 DOI: 10.3390/ijms25158250] [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: 06/20/2024] [Revised: 07/19/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
The intricate relationship between the gastrointestinal (GI) microbiome and the progression of chronic non-communicable diseases underscores the significance of developing strategies to modulate the GI microbiota for promoting human health. The administration of probiotics and prebiotics represents a good strategy that enhances the population of beneficial bacteria in the intestinal lumen post-consumption, which has a positive impact on human health. In addition, dietary fibers serve as a significant energy source for bacteria inhabiting the cecum and colon. Research articles and reviews sourced from various global databases were systematically analyzed using specific phrases and keywords to investigate these relationships. There is a clear association between dietary fiber intake and improved colon function, gut motility, and reduced colorectal cancer (CRC) risk. Moreover, the state of health is reflected in the reciprocal and bidirectional relationships among food, dietary antioxidants, inflammation, and body composition. They are known for their antioxidant properties and their ability to inhibit angiogenesis, metastasis, and cell proliferation. Additionally, they promote cell survival, modulate immune and inflammatory responses, and inactivate pro-carcinogens. These actions collectively contribute to their role in cancer prevention. In different investigations, antioxidant supplements containing vitamins have been shown to lower the risk of specific cancer types. In contrast, some evidence suggests that taking antioxidant supplements can increase the risk of developing cancer. Ultimately, collaborative efforts among immunologists, clinicians, nutritionists, and dietitians are imperative for designing well-structured nutritional trials to corroborate the clinical efficacy of dietary therapy in managing inflammation and preventing carcinogenesis. This review seeks to explore the interrelationships among dietary antioxidants, dietary fiber, and the gut microbiome, with a particular focus on their potential implications in inflammation and cancer.
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Affiliation(s)
- Camelia Munteanu
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Betty Schwartz
- The Institute of Biochemistry, Food Science and Nutrition, The School of Nutritional Sciences, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel
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20
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Ku S, Haque MA, Jang MJ, Ahn J, Choe D, Jeon JI, Park MS. The role of Bifidobacterium in longevity and the future of probiotics. Food Sci Biotechnol 2024; 33:2097-2110. [PMID: 39130652 PMCID: PMC11315853 DOI: 10.1007/s10068-024-01631-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/28/2024] [Accepted: 06/03/2024] [Indexed: 08/13/2024] Open
Abstract
This review explores the role and health impacts of probiotics, focusing specifically on Bifidobacterium spp. It highlights the functionalities that Bifidobacteria can provide, underscored by the historical evolution of definitions and technological advancements related to probiotics. By examining the association between Bifidobacteria and longevity, this review suggests new avenues for health enhancement. Highlighting case studies of centenarians, it presents examples related to human aging, illuminating the potential links to longevity through research on Bifidobacterium strains found in centenarians. This review not only emphasizes the importance of current research but also advocates for further investigation into the health benefits of Bifidobacteria, underlining the necessity for continuous study in the nutraceutical field.
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Affiliation(s)
- Seockmo Ku
- Department of Food Science and Technology, Texas A&M University, College Station, TX 77843 USA
| | - Md Ariful Haque
- Department of Food Science and Technology, Texas A&M University, College Station, TX 77843 USA
| | - Min Ji Jang
- Department of Food Science and Technology, Texas A&M University, College Station, TX 77843 USA
| | - Jaehyun Ahn
- Department of Agricultural Leadership, Education and Communications, Texas A&M University, College Station, TX 77843 USA
| | - Deokyeong Choe
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566 Korea
| | - Jong Ik Jeon
- Research Center, BIFIDO Co., Ltd, Hongcheon, 25117 South Korea
| | - Myeong Soo Park
- Research Center, BIFIDO Co., Ltd, Hongcheon, 25117 South Korea
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21
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Krothapalli M, Buddendorff L, Yadav H, Schilaty ND, Jain S. From Gut Microbiota to Brain Waves: The Potential of the Microbiome and EEG as Biomarkers for Cognitive Impairment. Int J Mol Sci 2024; 25:6678. [PMID: 38928383 PMCID: PMC11203453 DOI: 10.3390/ijms25126678] [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: 04/22/2024] [Revised: 06/09/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
Alzheimer's disease (AD) is a prevalent neurodegenerative disorder and a leading cause of dementia. Aging is a significant risk factor for AD, emphasizing the importance of early detection since symptoms cannot be reversed once the advanced stage is reached. Currently, there is no established method for early AD diagnosis. However, emerging evidence suggests that the microbiome has an impact on cognitive function. The gut microbiome and the brain communicate bidirectionally through the gut-brain axis, with systemic inflammation identified as a key connection that may contribute to AD. Gut dysbiosis is more prevalent in individuals with AD compared to their cognitively healthy counterparts, leading to increased gut permeability and subsequent systemic inflammation, potentially causing neuroinflammation. Detecting brain activity traditionally involves invasive and expensive methods, but electroencephalography (EEG) poses as a non-invasive alternative. EEG measures brain activity and multiple studies indicate distinct patterns in individuals with AD. Furthermore, EEG patterns in individuals with mild cognitive impairment differ from those in the advanced stage of AD, suggesting its potential as a method for early indication of AD. This review aims to consolidate existing knowledge on the microbiome and EEG as potential biomarkers for early-stage AD, highlighting the current state of research and suggesting avenues for further investigation.
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Affiliation(s)
- Mahathi Krothapalli
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL 33612, USA; (M.K.); (L.B.); (H.Y.)
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL 33612, USA;
| | - Lauren Buddendorff
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL 33612, USA; (M.K.); (L.B.); (H.Y.)
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL 33612, USA;
| | - Hariom Yadav
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL 33612, USA; (M.K.); (L.B.); (H.Y.)
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL 33612, USA;
| | - Nathan D. Schilaty
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL 33612, USA;
- Center for Neuromusculoskeletal Research, University of South Florida, Tampa, FL 33612, USA
| | - Shalini Jain
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, Tampa, FL 33612, USA; (M.K.); (L.B.); (H.Y.)
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL 33612, USA;
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Mafra D, Borges NA, Baptista BG, Martins LF, Borland G, Shiels PG, Stenvinkel P. What Can the Gut Microbiota of Animals Teach Us about the Relationship between Nutrition and Burden of Lifestyle Diseases? Nutrients 2024; 16:1789. [PMID: 38892721 PMCID: PMC11174762 DOI: 10.3390/nu16111789] [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: 05/16/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
The gut microbiota performs several crucial roles in a holobiont with its host, including immune regulation, nutrient absorption, synthesis, and defense against external pathogens, significantly influencing host physiology. Disruption of the gut microbiota has been linked to various chronic conditions, including cardiovascular, kidney, liver, respiratory, and intestinal diseases. Studying how animals adapt their gut microbiota across their life course at different life stages and under the dynamics of extreme environmental conditions can provide valuable insights from the natural world into how the microbiota modulates host biology, with a view to translating these into treatments or preventative measures for human diseases. By modulating the gut microbiota, opportunities to address many complications associated with chronic diseases appear. Such a biomimetic approach holds promise for exploring new strategies in healthcare and disease management.
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Affiliation(s)
- Denise Mafra
- Graduate Program in Medical Sciences and Graduate Program in Nutrition Sciences, Federal Fluminense University (UFF), Niterói 24020-141, Brazil;
- Graduate Program in Biological Sciences—Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-909, Brazil
| | - Natália A. Borges
- Graduate Program in Food, Nutrition, and Health, Institute of Nutrition, State University of Rio de Janeiro (UERJ), Rio de Janeiro 21941-909, Brazil;
| | - Beatriz G. Baptista
- Graduate Program in Medical Sciences and Graduate Program in Nutrition Sciences, Federal Fluminense University (UFF), Niterói 24020-141, Brazil;
| | - Layla F. Martins
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), São Paulo 05508-220, Brazil;
| | - Gillian Borland
- School of Molecular Biosciences, University of Glasgow, Glasgow G12 8QQ, UK; (G.B.); (P.G.S.)
| | - Paul G. Shiels
- School of Molecular Biosciences, University of Glasgow, Glasgow G12 8QQ, UK; (G.B.); (P.G.S.)
| | - Peter Stenvinkel
- Division of Renal Medicine, Department of Clinical Science, Technology and Intervention, Karolinska Institutet, 17165 Stockholm, Sweden;
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23
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Baraille M, Buttet M, Grimm P, Milojevic V, Julliand S, Julliand V. Changes of faecal bacterial communities and microbial fibrolytic activity in horses aged from 6 to 30 years old. PLoS One 2024; 19:e0303029. [PMID: 38829841 PMCID: PMC11146703 DOI: 10.1371/journal.pone.0303029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/17/2024] [Indexed: 06/05/2024] Open
Abstract
Horse owners and veterinarians report that from the age of 15, their horses can lose body condition and be more susceptible to diseases. Large intestinal microbiome changes may be involved. Indeed, microbiota is crucial for maintaining the condition and health of herbivores by converting fibres into nutrients. This study aimed to compare the faecal microbiome in horses aged from 6 to 30 years old (yo), living in the same environment and consuming the same diet, in order to assess whether the parameters changed linearly with age and whether there was a pivotal age category. Fifty horses were selected from the same environment and distributed across four age categories: 6-10 (n = 12), 11-15 (n = 11), 16-20 (n = 13), and 21-30 (n = 14) yo. All horses had no digestive problems, had teeth suitable for consuming their feed, and were up to date with their vaccination and deworming programmes. After three weeks of constant diet (ad libitum hay and 860 g of concentrate per day), one faecal sample per horse was collected on the same day. The bacterial communities' richness and intra-sample diversity were negatively correlated with age. There was a new distribution of non-beneficial and beneficial taxa, particularly in the 21-30 yo category. Although the faecal concentration of short-chain fatty acids remained stable, the acetate proportion was negatively correlated with age while it was the opposite for the proportions of butyrate, valerate, and iso-valerate. Additionally, the faecal pH was negatively correlated with age. Differences were more pronounced when comparing the 6-10 yo and 21-30 yo categories. The values of the parameters studied became more dispersed from the 16-20 yo category onwards, which appeared as a transitional moment, as it did not differ significantly from the younger and older categories for most of these parameters. Our data suggest that the microbiome changes with age. By highlighting the pivotal age of 16-20, this gives the opportunity to intervene before individuals reach extremes that could lead to pathological conditions.
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Affiliation(s)
- Marylou Baraille
- Institut Agro Dijon, Université de Bourgogne Franche–Comté, PAM UMR A 02.102, Dijon, France
- Lab To Field, Dijon, France
| | | | | | | | | | - Véronique Julliand
- Institut Agro Dijon, Université de Bourgogne Franche–Comté, PAM UMR A 02.102, Dijon, France
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24
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Fabi JP. The connection between gut microbiota and its metabolites with neurodegenerative diseases in humans. Metab Brain Dis 2024; 39:967-984. [PMID: 38848023 DOI: 10.1007/s11011-024-01369-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 06/03/2024] [Indexed: 07/10/2024]
Abstract
The aging of populations is a global phenomenon that follows a possible increase in the incidence of neurodegenerative diseases. Alzheimer's, Parkinson's, Multiple Sclerosis, Amyotrophic Lateral Sclerosis, and Huntington's diseases are some neurodegenerative disorders that aging could initiate or aggravate. Recent research has indicated that intestinal microbiota dysbiosis can trigger metabolism and brain functioning, contributing to the etiopathogenesis of those neurodegenerative diseases. The intestinal microbiota and its metabolites show significant functions in various aspects, such as the immune system modulation (development and maturation), the maintenance of the intestinal barrier integrity, the modulation of neuromuscular functions in the intestine, and the facilitation of essential metabolic processes for both the microbiota and humans. The primary evidence supporting the connection between intestinal microbiota and its metabolites with neurodegenerative diseases are epidemiological observations and animal models experimentation. This paper reviews up-to-date evidence on the correlation between the microbiota-gut-brain axis and neurodegenerative diseases, with a specially focus on gut metabolites. Dysbiosis can increase inflammatory cytokines and bacterial metabolites, altering intestinal and blood-brain barrier permeability and causing neuroinflammation, thus facilitating the pathogenesis of neurodegenerative diseases. Clinical data supporting this evidence still needs to be improved. Most of the works found are descriptive and associated with the presence of phyla or species of bacteria with neurodegenerative diseases. Despite the limitations of recent research, the potential for elucidating clinical questions that have thus far eluded clarification within prevailing pathophysiological frameworks of health and disease is promising through investigation of the interplay between the host and microbiota.
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Affiliation(s)
- João Paulo Fabi
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, 05508000, SP, Brazil.
- Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, 05508080, SP, Brazil.
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, 05508080, SP, Brazil.
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25
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Takahashi S, Nakagawa K, Nagata W, Koizumi A, Ishizuka T. A preliminary therapeutic study of the effects of molecular hydrogen on intestinal dysbiosis and small intestinal injury in high-fat diet-loaded senescence-accelerated mice. Nutrition 2024; 122:112372. [PMID: 38428218 DOI: 10.1016/j.nut.2024.112372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVES Aging and excessive fat intake may additively induce dysbiosis of the gut microbiota and intestinal inflammatory damage. Here, we analyzed microbiota dysbiosis and intestinal injury in high-fat diet-loaded senescence-accelerated mice (SAMP8). Additionally, we examined whether treatment with molecular hydrogen could improve the intestinal environment. METHODS SAMP8 and SAMR1 (control) mice were first fed a normal diet (ND) or high-fat diet (HFD) for 10 wk (n = 10 each group). Subsequently, HFD was supplemented with a placebo jelly or hydrogen-rich jelly (HRJ) for 4 wk. After treatment, isolated small intestinal tissues were used for hematoxylin and eosin staining, immunofluorescence staining, and thiobarbituric acid reactive substances (TBARS) assay. Furthermore, we analyzed alterations in the microbiota composition in cecal feces using 16S rRNA gene analysis for microbiota profiling. Statistical analyses were performed using unpaired Student's t tests or one-way analysis of variance and Tukey's post hoc test for multiple comparisons. RESULT HFD feeding reduced the expression of caudal-related homeobox transcription factor 2 (CDX2) and 5-bromo-2'-deoxyuridine (BrdU) and enhanced malondialdehyde (MDA) levels in the small intestine of SAMP8. HRJ treatment improved the reduction in CDX2 and BrdU and enhanced MDA levels. We performed a sequence analysis of the gut microbiota at the genus level and identified 283 different bacterial genera from the 30 samples analyzed in the study. Among them, Parvibacter positively correlated with both HFD intake and aging, whereas 10 bacteria, including Anaerofustis, Anaerosporobacter, Butyricicoccus, and Ruminococcus were negatively correlated with both HFD and aging. HRJ treatment increased Lactinobactor and decreased Akkermansia, Gracilibacter, and Marvinbryantia abundance. CONCLUSION Our findings suggest that treatment with molecular hydrogen may affect microbiota profiling and suppress intestinal injury in HFD-loaded SAMP8.
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Affiliation(s)
- Sayaka Takahashi
- Department of Pharmacology of National Defense Medical College, Saitama, Japan.
| | - Keiichi Nakagawa
- Department of Pharmacology of National Defense Medical College, Saitama, Japan
| | - Wataru Nagata
- Department of Pharmacology of National Defense Medical College, Saitama, Japan
| | - Akiho Koizumi
- Department of Pharmacology of National Defense Medical College, Saitama, Japan
| | - Toshiaki Ishizuka
- Department of Pharmacology of National Defense Medical College, Saitama, Japan
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26
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Muñoz-Fernandez SS, Garcez FB, Alencar JCG, Bastos AA, Morley JE, Cederholm T, Aprahamian I, de Souza HP, Avelino-Silva TJ, Bindels LB, Ribeiro SML. Gut microbiota disturbances in hospitalized older adults with malnutrition and clinical outcomes. Nutrition 2024; 122:112369. [PMID: 38422755 DOI: 10.1016/j.nut.2024.112369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVE Malnutrition is one of the most threatening conditions in geriatric populations. The gut microbiota has an important role in the host's metabolic and muscular health: however, its interplay with disease-related malnutrition is not well understood. We aimed to identify the association of malnutrition with the gut microbiota and predict clinical outcomes in hospitalized acutely ill older adults. METHODS We performed a secondary longitudinal analysis in 108 geriatric patients from a prospective cohort evaluated at admission and 72 h of hospitalization. We collected clinical, demographic, nutritional, and 16S rRNA gene-sequenced gut microbiota data. Microbiota diversity, overall composition, and differential abundance were calculated and compared between patients with and without malnutrition. Microbiota features associated with malnutrition were used to predict clinical outcomes. RESULTS Patients with malnutrition (51%) had a different microbiota composition compared to those who were well-nourished during hospitalization (ANOSIM R = 0.079, P = 0.003). Patients with severe malnutrition showed poorer α-diversity at admission (Shannon P = 0.012, Simpson P = 0.018) and follow-up (Shannon P = 0.023, Chao1 P = 0.008). Differential abundance of Lachnospiraceae NK4A136 group, Subdoligranulum, and Faecalibacterium prausnitzii were significantly lower and inversely associated with malnutrition, while Corynebacterium, Ruminococcaceae Incertae Sedis, and Fusobacterium were significantly increased and positively associated with malnutrition. Corynebacterium, Ruminococcaceae Incertae Sedis, and the overall composition were important predictors of critical care in patients with malnutrition during hospitalization. CONCLUSION Older adults with malnutrition, especially in a severe stage, may be subject to substantial gut microbial disturbances during hospitalization. The gut microbiota profile of patients with malnutrition might help us to predict worse clinical outcomes.
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Affiliation(s)
- Shirley S Muñoz-Fernandez
- Nutrition Department, School of Public Health, University of São Paulo, São Paulo, Sao Paulo, Brazil.
| | - Flavia B Garcez
- Laboratorio de Investigacao Medica em Envelhecimento (LIM 66), Servico de Geriatria, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Sao Paulo, Brazil; Departamento de Medicina, Hospital Universitario, Universidade Federal de Sergipe, Aracaju, Sergipe, Brazil
| | - Julio C G Alencar
- Disciplina de Emergencias Clínicas, Departamento de Clínica Medica, Faculty of Medicine, University of São Paulo, São Paulo, Sao Paulo, Brazil
| | - Amália A Bastos
- Nutrition Department, School of Public Health, University of São Paulo, São Paulo, Sao Paulo, Brazil
| | - John E Morley
- Division of Geriatric Medicine, School of Medicine, Saint Louis University, St. Louis, Missouri, USA
| | - Tommy Cederholm
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden; Karolinska University Hospital, Stockholm, Sweden
| | - Ivan Aprahamian
- Division of Geriatrics, Department of Internal Medicine, Jundiaí Medical School, Group of Investigation on Multimorbidity and Mental Health in Aging (GIMMA), Jundiaí, Sao Paulo, Brazil
| | - Heraldo P de Souza
- Disciplina de Emergencias Clínicas, Departamento de Clínica Medica, Faculty of Medicine, University of São Paulo, São Paulo, Sao Paulo, Brazil
| | - Thiago J Avelino-Silva
- Laboratorio de Investigacao Medica em Envelhecimento (LIM 66), Servico de Geriatria, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Sao Paulo, Brazil
| | - Laure B Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Sandra M L Ribeiro
- Nutrition Department, School of Public Health, University of São Paulo, São Paulo, Sao Paulo, Brazil; School of Arts, Science, and Humanity, University of São Paulo, São Paulo, Sao Paulo, Brazil
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27
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He C, Mao Y, Wei L, Zhao A, Chen L, Zhang F, Cui X, Pan MH, Wang B. Lactiplantibacillusplantarum JS19-adjunctly fermented goat milk alleviates D-galactose-induced aging by modulating oxidative stress and intestinal microbiota in mice. J Dairy Sci 2024:S0022-0302(24)00860-9. [PMID: 38825119 DOI: 10.3168/jds.2024-24733] [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: 01/29/2024] [Accepted: 04/19/2024] [Indexed: 06/04/2024]
Abstract
Oxidative stress is a crucial factor in the age-related decline in physiological, genomic, metabolic, and immunological functions. We screened Lactiplantibacillus plantarum JS19 (L. plantarum JS19), which has been shown to possess therapeutic properties in mice with ulcerative colitis. In this study, L. plantarum JS19-adjunctly fermented goat milk (LAF) was employed to alleviate D-galactose-induced aging and regulate intestinal flora in an aging mouse model. The oral administration of LAF effectively improved the health of spleen and kidney in mice, while mitigating the hepatocyte and oxidative damage induced by D-galactose. Additionally, LAF alleviated D-galactose-induced dysbiosis of the intestinal flora by reducing the abundance of harmful bacteria Desulfovibrio and Helicobacter, while greatly promoting the growth of beneficial Rikenellaceae_RC9_gut_group and Eubacterium. Biomarker 5-hydroxyindole-3-acetic acid was found to be positively linked with those harmful bacteria, while bio-active metabolites were strongly correlated with the beneficial genus. These observations suggest that LAF possesses the capability to mitigate the effects of D-galactose-induced aging in a mouse model through the regulation of oxidative stress, the gut microbiota composition, and levels of fecal metabolites. Consequently, these findings shed light on the potential of LAF as a functional food with anti-aging properties.
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Affiliation(s)
- Chao He
- College of Food Engineering & Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Yazhou Mao
- College of Food Engineering & Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Lusha Wei
- College of Food Engineering & Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Aiqing Zhao
- College of Food Engineering & Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Li Chen
- College of Food Engineering & Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Fuxin Zhang
- College of Food Engineering & Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Xiuxiu Cui
- Xi'an Baiyue Goat Dairy Group Co., Ltd., Xi'an 710000, China
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan.
| | - Bini Wang
- College of Food Engineering & Nutritional Science, Shaanxi Normal University, Xi'an 710119, China.
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28
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Wardenaar FC, Mohr AE, Ortega-Santos CP, Nyakayiru J, Kersch-Counet C, Chan Y, Clear AM, Kurka J, Schott KD, Seltzer RGN. Explorative Characterization of GI Complaints, General Physical and Mental Wellbeing, and Gut Microbiota in Trained Recreative and Competitive Athletes with or without Self-Reported Gastrointestinal Symptoms. Nutrients 2024; 16:1712. [PMID: 38892645 PMCID: PMC11174857 DOI: 10.3390/nu16111712] [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: 05/07/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
The current state of the literature lacks a clear characterization of gastrointestinal (GI) symptoms, gut microbiota composition, and general physical and mental wellbeing in well-trained athletes. Therefore, this study aimed to characterize differences in self-reported symptoms, gut microbiota composition, and wellbeing (i.e., sleep quality, mood, and physical (PHQ) and mental wellbeing) between athletes with and without GI symptoms. In addition, we assessed the potential impact of a 3-week multi-ingredient fermented whey supplement in the GI complaints group, without a control group, on the gut microbiota and self-reported GI symptoms and wellbeing. A total of 50 athletes (24.7 ± 4.5 years) with GI issues (GI group at baseline, GI-B) and 21 athletes (25.4 ± 5.3 years) without GI issues (non-GI group, NGI) were included. At baseline, there was a significant difference in the total gastrointestinal symptom rating scale (GSRS) score (24.1 ± 8.48 vs. 30.3 ± 8.82, p = 0.008) and a trend difference in PHQ (33.9 ± 10.7 vs. 30.3 ± 8.82, p = 0.081), but no differences (p > 0.05) were seen for other outcomes, including gut microbiota metrics, between groups. After 3-week supplementation, the GI group (GI-S) showed increased Bifidobacterium relative abundance (p < 0.05), reported a lower number of severe GI complaints (from 72% to 54%, p < 0.001), and PHQ declined (p = 0.010). In conclusion, well-trained athletes with GI complaints reported more severe GI symptoms than an athletic reference group, without showing clear differences in wellbeing or microbiota composition. Future controlled research should further investigate the impact of such multi-ingredient supplements on GI complaints and the associated changes in gut health-related markers.
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Affiliation(s)
- Floris C. Wardenaar
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA; (A.E.M.); (Y.C.); (A.-M.C.); (J.K.); (K.D.S.); (R.G.N.S.)
| | - Alex E. Mohr
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA; (A.E.M.); (Y.C.); (A.-M.C.); (J.K.); (K.D.S.); (R.G.N.S.)
- Center for Health Through Microbiomes, Biodesign Institute, Arizona State University, Tempe, AZ 85281, USA
| | - Carmen P. Ortega-Santos
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA;
| | - Jean Nyakayiru
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands; (J.N.); (C.K.-C.)
| | | | - Yat Chan
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA; (A.E.M.); (Y.C.); (A.-M.C.); (J.K.); (K.D.S.); (R.G.N.S.)
| | - Anna-Marie Clear
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA; (A.E.M.); (Y.C.); (A.-M.C.); (J.K.); (K.D.S.); (R.G.N.S.)
| | - Jonathan Kurka
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA; (A.E.M.); (Y.C.); (A.-M.C.); (J.K.); (K.D.S.); (R.G.N.S.)
| | - Kinta D. Schott
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA; (A.E.M.); (Y.C.); (A.-M.C.); (J.K.); (K.D.S.); (R.G.N.S.)
| | - Ryan G. N. Seltzer
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA; (A.E.M.); (Y.C.); (A.-M.C.); (J.K.); (K.D.S.); (R.G.N.S.)
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Dinetz E, Zeballos-Palacios C, Martinez CA. Addressing the Missing Links in Cardiovascular Aging. Clin Interv Aging 2024; 19:873-882. [PMID: 38774249 PMCID: PMC11107914 DOI: 10.2147/cia.s457180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/27/2024] [Indexed: 05/24/2024] Open
Abstract
The aim of this manuscript is to provide a review of available options to enhance cardiovascular health and prevent cardiovascular disease (CVD) in the aging population using a systems-biology approach. These include the role of the gut microbiome, the early identification and removal of environmental toxins, and finally age related sex hormones and supplement replacement which all influence aging. Implementing such a comprehensive approach has the potential to facilitate earlier risk assessment, disease prevention, and even improve mortality. Further study in these areas will continue to advance our understanding and refine therapeutic interventions for a healthier cardiovascular aging process.
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Affiliation(s)
- Elliot Dinetz
- Department of Integrative and Family Medicine, University of Miami Miller School of Medicine Miami, Miami, FL, USA
| | | | - Claudia A Martinez
- Department of Medicine, Cardiovascular Division, University of Miami Miller School of Medicine, Miami, FL, USA
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30
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Tsugawa H, Ishihara T, Ogasa K, Iwanami S, Hori A, Takahashi M, Yamada Y, Satoh-Takayama N, Ohno H, Minoda A, Arita M. A lipidome landscape of aging in mice. NATURE AGING 2024; 4:709-726. [PMID: 38609525 DOI: 10.1038/s43587-024-00610-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 03/07/2024] [Indexed: 04/14/2024]
Abstract
Understanding the molecular mechanisms of aging is crucial for enhancing healthy longevity. We conducted untargeted lipidomics across 13 biological samples from mice at various life stages (2, 12, 19 and 24 months) to explore the potential link between aging and lipid metabolism, considering sex (male or female) and microbiome (specific pathogen-free or germ-free) dependencies. By analyzing 2,704 molecules from 109 lipid subclasses, we characterized common and tissue-specific lipidome alterations associated with aging. For example, the levels of bis(monoacylglycero)phosphate containing polyunsaturated fatty acids increased in various organs during aging, whereas the levels of other phospholipids containing saturated and monounsaturated fatty acids decreased. In addition, we discovered age-dependent sulfonolipid accumulation, absent in germ-free mice, correlating with Alistipes abundance determined by 16S ribosomal RNA gene amplicon sequencing. In the male kidney, glycolipids such as galactosylceramides, galabiosylceramides (Gal2Cer), trihexosylceramides (Hex3Cer), and mono- and digalactosyldiacylglycerols were detected, with two lipid classes-Gal2Cer and Hex3Cer-being significantly enriched in aged mice. Integrated analysis of the kidney transcriptome revealed uridine diphosphate galactosyltransferase 8A (UGT8a), alkylglycerone phosphate synthase and fatty acyl-coenzyme A reductase 1 as potential enzymes responsible for the male-specific glycolipid biosynthesis in vivo, which would be relevant to sex dependency in kidney diseases. Inhibiting UGT8 reduced the levels of these glycolipids and the expression of inflammatory cytokines in the kidney. Our study provides a valuable resource for clarifying potential links between lipid metabolism and aging.
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Affiliation(s)
- Hiroshi Tsugawa
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Tokyo, Japan.
- Metabolome Informatics Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Japan.
- Molecular and Cellular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan.
| | - Tomoaki Ishihara
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Department of Pharmacy, Nagasaki International University, Sasebo, Japan
| | - Kota Ogasa
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Seigo Iwanami
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan
| | - Aya Hori
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Mikiko Takahashi
- Metabolome Informatics Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Yutaka Yamada
- Metabolome Informatics Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Naoko Satoh-Takayama
- Laboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Hiroshi Ohno
- Laboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Aki Minoda
- Laboratory for Cellular Epigenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, the Netherlands
| | - Makoto Arita
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.
- Molecular and Cellular Epigenetics Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan.
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, Japan.
- Human Biology-Microbiome-Quantum Research Center (WPI-Bio2Q), Keio University, Tokyo, Japan.
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Missong H, Joshi R, Khullar N, Thareja S, Navik U, Bhatti GK, Bhatti JS. Nutrient-epigenome interactions: Implications for personalized nutrition against aging-associated diseases. J Nutr Biochem 2024; 127:109592. [PMID: 38325612 DOI: 10.1016/j.jnutbio.2024.109592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/28/2024] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
Aging is a multifaceted process involving genetic and environmental interactions often resulting in epigenetic changes, potentially leading to aging-related diseases. Various strategies, like dietary interventions and calorie restrictions, have been employed to modify these epigenetic landscapes. A burgeoning field of interest focuses on the role of microbiota in human health, emphasizing system biology and computational approaches. These methods help decipher the intricate interplay between diet and gut microbiota, facilitating the creation of personalized nutrition strategies. In this review, we analysed the mechanisms related to nutritional interventions while highlighting the influence of dietary strategies, like calorie restriction and intermittent fasting, on microbial composition and function. We explore how gut microbiota affects the efficacy of interventions using tools like multi-omics data integration, network analysis, and machine learning. These tools enable us to pinpoint critical regulatory elements and generate individualized models for dietary responses. Lastly, we emphasize the need for a deeper comprehension of nutrient-epigenome interactions and the potential of personalized nutrition informed by individual genetic and epigenetic profiles. As knowledge and technology advance, dietary epigenetics stands on the cusp of reshaping our strategy against aging and related diseases.
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Affiliation(s)
- Hemi Missong
- Laboratory of Translational Medicine and Nanotherapeutics, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, India
| | - Riya Joshi
- Laboratory of Translational Medicine and Nanotherapeutics, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, India
| | - Naina Khullar
- Department of Zoology, Mata Gujri College, Fatehgarh Sahib, Punjab, India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Umashanker Navik
- Department of Pharmacology, Central University of Punjab, Bathinda, Punjab, India
| | - Gurjit Kaur Bhatti
- Department of Medical Lab Technology, University Institute of Applied Health Sciences, Chandigarh University, Mohali, Punjab, India.
| | - Jasvinder Singh Bhatti
- Laboratory of Translational Medicine and Nanotherapeutics, Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, India.
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32
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Wang KY, Zhong XQ. Overview of relationship between intestinal flora imbalance and diseases. WORLD CHINESE JOURNAL OF DIGESTOLOGY 2024; 32:280-284. [DOI: 10.11569/wcjd.v32.i4.280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
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33
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Barker-Tejeda TC, Zubeldia-Varela E, Macías-Camero A, Alonso L, Martín-Antoniano IA, Rey-Stolle MF, Mera-Berriatua L, Bazire R, Cabrera-Freitag P, Shanmuganathan M, Britz-McKibbin P, Ubeda C, Francino MP, Barber D, Ibáñez-Sandín MD, Barbas C, Pérez-Gordo M, Villaseñor A. Comparative characterization of the infant gut microbiome and their maternal lineage by a multi-omics approach. Nat Commun 2024; 15:3004. [PMID: 38589361 PMCID: PMC11001937 DOI: 10.1038/s41467-024-47182-y] [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: 05/29/2023] [Accepted: 03/22/2024] [Indexed: 04/10/2024] Open
Abstract
The human gut microbiome establishes and matures during infancy, and dysregulation at this stage may lead to pathologies later in life. We conducted a multi-omics study comprising three generations of family members to investigate the early development of the gut microbiota. Fecal samples from 200 individuals, including infants (0-12 months old; 55% females, 45% males) and their respective mothers and grandmothers, were analyzed using two independent metabolomics platforms and metagenomics. For metabolomics, gas chromatography and capillary electrophoresis coupled to mass spectrometry were applied. For metagenomics, both 16S rRNA gene and shotgun sequencing were performed. Here we show that infants greatly vary from their elders in fecal microbiota populations, function, and metabolome. Infants have a less diverse microbiota than adults and present differences in several metabolite classes, such as short- and branched-chain fatty acids, which are associated with shifts in bacterial populations. These findings provide innovative biochemical insights into the shaping of the gut microbiome within the same generational line that could be beneficial in improving childhood health outcomes.
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Affiliation(s)
- Tomás Clive Barker-Tejeda
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - Elisa Zubeldia-Varela
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - Andrea Macías-Camero
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - Lola Alonso
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Isabel Adoración Martín-Antoniano
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- Instituto de Estudios de las Adicciones IEA-CEU, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
| | - María Fernanda Rey-Stolle
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - Leticia Mera-Berriatua
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - Raphaëlle Bazire
- Department of Allergy, Hospital Infantil Niño Jesús, Fib-HNJ, Madrid, Spain
- Instituto de Investigación Sanitaria-La Princesa, Madrid, Spain
| | - Paula Cabrera-Freitag
- Pedriatic Allergy Unit, Allergy Service, Hospital General Universitario Gregorio Marañón, and Gregorio Marañón Health Research Institute, Madrid, Spain
| | - Meera Shanmuganathan
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON, Canada
| | - Philip Britz-McKibbin
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON, Canada
| | - Carles Ubeda
- Fundació per al Foment de la Investigació Sanitària i Biomèdica de la Comunitat Valenciana (FISABIO), Valencia, Spain
- CIBER en Epidemiología y Salud Pública, Madrid, Spain
| | - M Pilar Francino
- CIBER en Epidemiología y Salud Pública, Madrid, Spain
- Joint Research Unit in Genomics and Health, Fundació per al Foment de la Investigació Sanitària i Biomèdica de la Comunitat Valenciana (FISABIO) and Institut de Biologia Integrativa de Sistemes (Universitat de València / Consejo Superior de Investigaciones Científicas), València, Spain
| | - Domingo Barber
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - María Dolores Ibáñez-Sandín
- Department of Allergy, Hospital Infantil Niño Jesús, Fib-HNJ, Madrid, Spain
- Instituto de Investigación Sanitaria-La Princesa, Madrid, Spain
| | - Coral Barbas
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain
| | - Marina Pérez-Gordo
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain.
| | - Alma Villaseñor
- Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain.
- Departamento de Ciencias Médicas Básicas, Instituto de Medicina Molecular Aplicada (IMMA) Nemesio Díez, Facultad de Medicina, Universidad San Pablo-CEU, CEU Universities, Boadilla del Monte, Spain.
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Martel J, Ojcius DM, Young JD. Lifestyle interventions to delay senescence. Biomed J 2024; 47:100676. [PMID: 37925155 PMCID: PMC10940141 DOI: 10.1016/j.bj.2023.100676] [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: 05/02/2023] [Revised: 10/11/2023] [Accepted: 10/26/2023] [Indexed: 11/06/2023] Open
Abstract
Senescence is a condition of cell cycle arrest that increases inflammation and contributes to the development of chronic diseases in the aging human body. While several compounds described as senolytics and senomorphics produce health benefits by reducing the burden of senescence, less attention has been devoted to lifestyle interventions that produce similar effects. We describe here the effects of exercise, nutrition, caloric restriction, intermittent fasting, phytochemicals from natural products, prebiotics and probiotics, and adequate sleep on senescence in model organisms and humans. These interventions can be integrated within a healthy lifestyle to reduce senescence and inflammation and delay the consequences of aging.
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Affiliation(s)
- Jan Martel
- Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan.
| | - David M Ojcius
- Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan; Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, CA, USA; Immunology Consortium, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - John D Young
- Chang Gung Biotechnology Corporation, Taipei, Taiwan
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Tzemah-Shahar R, Turjeman S, Sharon E, Gamliel G, Hochner H, Koren O, Agmon M. Signs of aging in midlife: physical function and sex differences in microbiota. GeroScience 2024; 46:1477-1488. [PMID: 37610596 PMCID: PMC10828485 DOI: 10.1007/s11357-023-00905-3] [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: 06/13/2023] [Accepted: 08/04/2023] [Indexed: 08/24/2023] Open
Abstract
Microbiota composition has been linked to physical activity, health measures, and biological age, but a shared profile has yet to be shown. The aim of this study was to examine the associations between microbiota composition and measures of function, such as a composite measure of physical capacity, and biological age in midlife, prior to onset of age-related diseases. Seventy healthy midlife individuals (age 44.58 ± 0.18) were examined cross-sectionally, and their gut-microbiota profile was characterized from stool samples using 16SrRNA gene sequencing. Biological age was measured using the Klemera-Doubal method and a composition of blood and physiological biomarkers. Physical capacity was calculated based on sex-standardized functional tests. We demonstrate that the women had significantly richer microbiota, p = 0.025; however, microbiota diversity was not linked with chronological age, biological age, or physical capacity for either women or men. Men had slightly greater β-diversity; however, β-diversity was positively associated with biological age and with physical capacity for women only (p = 0.01 and p = 0.04; respectively). For women, an increase in abundance of Roseburia faecis and Collinsella aerofaciens, as well as genus Ruminococcus and Dorea, was significantly associated with higher biological age and lower physical capacity; an increase in abundance of Akkermansia muciniphila and genera Bacteroides and Alistipes was associated with younger biological age and increased physical capacity. Differentially abundant taxa were also associated with non-communicable diseases. These findings suggest that microbiota composition is a potential mechanism linking physical capacity and health status; personalized probiotics may serve as a new means to support health-promoting interventions in midlife. Investigating additional factors underlying this link may facilitate the development of a more accurate method to estimate the rate of aging.
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Affiliation(s)
- Roy Tzemah-Shahar
- Faculty of Social Welfare and Health Sciences, University of Haifa, Abba Khoushy Ave 199, 3498838, Haifa, Israel
| | - Sondra Turjeman
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Efrat Sharon
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Gila Gamliel
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Hagit Hochner
- Epidemiology Unit, Hebrew University School of Public Health, Jerusalem, Israel
| | - Omry Koren
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Maayan Agmon
- Faculty of Social Welfare and Health Sciences, University of Haifa, Abba Khoushy Ave 199, 3498838, Haifa, Israel.
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36
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Longtine AG, Greenberg NT, Bernaldo de Quirós Y, Brunt VE. The gut microbiome as a modulator of arterial function and age-related arterial dysfunction. Am J Physiol Heart Circ Physiol 2024; 326:H986-H1005. [PMID: 38363212 PMCID: PMC11279790 DOI: 10.1152/ajpheart.00764.2023] [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: 12/08/2023] [Revised: 01/26/2024] [Accepted: 02/13/2024] [Indexed: 02/17/2024]
Abstract
The arterial system is integral to the proper function of all other organs and tissues. Arterial function is impaired with aging, and arterial dysfunction contributes to the development of numerous age-related diseases, including cardiovascular diseases. The gut microbiome has emerged as an important regulator of both normal host physiological function and impairments in function with aging. The purpose of this review is to summarize more recently published literature demonstrating the role of the gut microbiome in supporting normal arterial development and function and in modulating arterial dysfunction with aging in the absence of overt disease. The gut microbiome can be altered due to a variety of exposures, including physiological aging processes. We explore mechanisms by which the gut microbiome may contribute to age-related arterial dysfunction, with a focus on changes in various gut microbiome-related compounds in circulation. In addition, we discuss how modulating circulating levels of these compounds may be a viable therapeutic approach for improving artery function with aging. Finally, we identify and discuss various experimental considerations and research gaps/areas of future research.
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Affiliation(s)
- Abigail G Longtine
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States
| | - Nathan T Greenberg
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States
| | - Yara Bernaldo de Quirós
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria, Universidad de las Palmas de Gran Canaria, Las Palmas, Spain
| | - Vienna E Brunt
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, United States
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
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37
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Barba-Vila O, García-Mieres H, Ramos B. Probiotics in autism spectrum disorders: a systematic review of clinical studies and future directions. Nutr Rev 2024:nuae010. [PMID: 38497979 DOI: 10.1093/nutrit/nuae010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024] Open
Abstract
CONTEXT It is hypothesized that gut dysbiosis, a typical feature of patients with autism spectrum disorder (ASD), could be involved in the origin of this neurodevelopmental disorder. Therefore, the use of probiotics to restore gastrointestinal (GI) equilibrium might be a promising therapeutic strategy due to its capacity to balance the gut-brain axis and behavioral responses. OBJECTIVE To summarize current knowledge on the use of probiotics to treat core clinical ASD symptoms and concomitant GI signs, compare the design of published studies with those of ongoing trials, assess the near future of this field, and provide recommendations for improving novel studies. DATA SOURCES The literature search was conducted in February 2020 and updated in March 2021, using a broad range of bibliographic and clinical trial-specific databases. DATA EXTRACTION Data were extracted using a standardized form, and articles reporting on 28 clinical studies (already published or still ongoing) were included. The risk of bias in clinical studies was evaluated using the Cochrane Collaboration Risk of Bias Assessment tool for randomized trials and the Risk of Bias in Nonrandomized Studies-Interventions tool for nonrandomized trials. RESULTS The results suggest that probiotics improve ASD-like social deficits, GI symptoms, and gut microbiota profile. However, inconsistencies among studies and their methodological limitations make it difficult to draw any conclusions regarding the efficacy of probiotics in ASD. This review provides specific suggestions for future research to improve the quality of the studies. CONCLUSIONS Although ongoing studies have improved designs, the available knowledge does not permit solid conclusions to be made regarding the efficacy of probiotics in ameliorating the symptoms (psychiatric and/or GI) associated with ASD. Thus, more high-quality research and new approaches are needed to design effective probiotic strategies for ASD.
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Affiliation(s)
- Olga Barba-Vila
- Department de Bioquímica i Biología Molecular, Facultat de Medicina, Universitat Autònoma de Barcelona Bellaterra, Barcelona, Spain
| | - Helena García-Mieres
- Etiopathogenesis and Treatment of Severe Mental Disorders, Teaching, Research, and Innovation Unit, Institut de Recerca Sant Joan de Déu, Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat, Barcelona, Spain
- Centro Investigación Biomédica en Red Salud Mental, Madrid, Spain
- Health Services Research Unit, Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain
- CIBER Epidemiología y Salud Pública, Madrid, Spain
- Department of Medicine and Health Sciences, Pompeu Fabra University, Barcelona, Spain
- Faculty of Medicine, University of Vic-Central University of Catalonia, Vic, Spain
| | - Belén Ramos
- Department de Bioquímica i Biología Molecular, Facultat de Medicina, Universitat Autònoma de Barcelona Bellaterra, Barcelona, Spain
- Etiopathogenesis and Treatment of Severe Mental Disorders, Teaching, Research, and Innovation Unit, Institut de Recerca Sant Joan de Déu, Parc Sanitari Sant Joan de Déu Sant Boi de Llobregat, Barcelona, Spain
- Centro Investigación Biomédica en Red Salud Mental, Madrid, Spain
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38
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Nayman EI, Schwartz BA, Polmann M, Gumabong AC, Nieuwdorp M, Cickovski T, Mathee K. Differences in gut microbiota between Dutch and South-Asian Surinamese: potential implications for type 2 diabetes mellitus. Sci Rep 2024; 14:4585. [PMID: 38403716 PMCID: PMC10894869 DOI: 10.1038/s41598-024-54769-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 02/16/2024] [Indexed: 02/27/2024] Open
Abstract
Gut microbiota, or the collection of diverse microorganisms in a specific ecological niche, are known to significantly impact human health. Decreased gut microbiota production of short-chain fatty acids (SCFAs) has been implicated in type 2 diabetes mellitus (T2DM) disease progression. Most microbiome studies focus on ethnic majorities. This study aims to understand how the microbiome differs between an ethnic majority (the Dutch) and minority (the South-Asian Surinamese (SAS)) group with a lower and higher prevalence of T2DM, respectively. Microbiome data from the Healthy Life in an Urban Setting (HELIUS) cohort were used. Two age- and gender-matched groups were compared: the Dutch (n = 41) and SAS (n = 43). Microbial community compositions were generated via DADA2. Metrics of microbial diversity and similarity between groups were computed. Biomarker analyses were performed to determine discriminating taxa. Bacterial co-occurrence networks were constructed to examine ecological patterns. A tight microbiota cluster was observed in the Dutch women, which overlapped with some of the SAS microbiota. The Dutch gut contained a more interconnected microbial ecology, whereas the SAS network was dispersed, i.e., contained fewer inter-taxonomic correlational relationships. Bacteroides caccae, Butyricicoccus, Alistipes putredinis, Coprococcus comes, Odoribacter splanchnicus, and Lachnospira were enriched in the Dutch gut. Haemophilus, Bifidobacterium, and Anaerostipes hadrus discriminated the SAS gut. All but Lachnospira and certain strains of Haemophilus are known to produce SCFAs. The Dutch gut microbiome was distinguished from the SAS by diverse, differentially abundant SCFA-producing taxa with significant cooperation. The dynamic ecology observed in the Dutch was not detected in the SAS. Among several potential gut microbial biomarkers, Haemophilus parainfluenzae likely best characterizes the ethnic minority group, which is more predisposed to T2DM. The higher prevalence of T2DM in the SAS may be associated with the gut dysbiosis observed.
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Affiliation(s)
- Eric I Nayman
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.
- Bioinformatics Research Group, Knight Foundation School of Computing and Information Sciences, College of Engineering and Computing, Florida International University, Miami, FL, USA.
| | - Brooke A Schwartz
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
- Bioinformatics Research Group, Knight Foundation School of Computing and Information Sciences, College of Engineering and Computing, Florida International University, Miami, FL, USA
| | - Michaela Polmann
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Alayna C Gumabong
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
- Bioinformatics Research Group, Knight Foundation School of Computing and Information Sciences, College of Engineering and Computing, Florida International University, Miami, FL, USA
| | - Max Nieuwdorp
- Amsterdam Diabetes Center, Department of Internal Medicine, Academic Medical Center, VU University Medical Center, Amsterdam, The Netherlands
| | - Trevor Cickovski
- Bioinformatics Research Group, Knight Foundation School of Computing and Information Sciences, College of Engineering and Computing, Florida International University, Miami, FL, USA.
| | - Kalai Mathee
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.
- Biomolecular Sciences Institute, Florida International University, Miami, FL, USA.
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Daca A, Jarzembowski T. From the Friend to the Foe- Enterococcus faecalis Diverse Impact on the Human Immune System. Int J Mol Sci 2024; 25:2422. [PMID: 38397099 PMCID: PMC10888668 DOI: 10.3390/ijms25042422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
Enterococcus faecalis is a bacterium which accompanies us from the first days of our life. As a commensal it produces vitamins, metabolizes nutrients, and maintains intestinal pH. All of that happens in exchange for a niche to inhabit. It is not surprising then, that the bacterium was and is used as an element of many probiotics and its positive impact on the human immune system and the body in general is hard to ignore. This bacterium has also a dark side though. The plasticity and relative ease with which one acquires virulence traits, and the ability to hide from or even deceive and use the immune system to spread throughout the body make E. faecalis a more and more dangerous opponent. The statistics clearly show its increasing role, especially in the case of nosocomial infections. Here we present the summarization of current knowledge about E. faecalis, especially in the context of its relations with the human immune system.
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Affiliation(s)
- Agnieszka Daca
- Department of Physiopathology, Medical University of Gdańsk, 80-210 Gdańsk, Poland
| | - Tomasz Jarzembowski
- Department of Microbiology, Medical University of Gdańsk, 80-210 Gdańsk, Poland
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Monday L, Tillotson G, Chopra T. Microbiota-Based Live Biotherapeutic Products for Clostridioides Difficile Infection- The Devil is in the Details. Infect Drug Resist 2024; 17:623-639. [PMID: 38375101 PMCID: PMC10876012 DOI: 10.2147/idr.s419243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/12/2024] [Indexed: 02/21/2024] Open
Abstract
Clostridioides difficile infection (CDI) remains a significant contributor to healthcare costs and morbidity due to high rates of recurrence. Currently, available antibiotic treatment strategies further disrupt the fecal microbiome and do not address the alterations in commensal flora (dysbiosis) that set the stage for CDI. Advances in microbiome-based research have resulted in the development of new agents, classified as live biotherapeutic products (LBPs), for preventing recurrent CDI (rCDI) by restoring eubiosis. Prior to the LBPs, fecal microbiota transplantation (FMT) was available for this purpose; however, lack of large-scale availability and safety concerns have remained barriers to its widespread use. The LBPs are an exciting development, but questions remain. Some are derived directly from human stool while other developmental products contain a defined microbial consortium manufactured ex vivo, and they may be composed of either living bacteria or their spores, making it difficult to compare members of this heterogenous drug class to one another. None have been studied head-to head or against FMT in preventing rCDI. As a class, they have considerable variability in their biologic composition, biopharmaceutic science, route of administration, stages of development, and clinical trial data. This review will start by explaining the role of dysbiosis in CDI, then give the details of the biopharmaceutical components for the LBPs which are approved or in development including how they differ from FMT and from one another. We then discuss the clinical trials of the LBPs currently approved for rCDI and end with the future clinical directions of LBPs beyond C. difficile.
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Affiliation(s)
- Lea Monday
- Division of Infectious Diseases, Wayne State University School of Medicine, Detroit, MI, USA
| | | | - Teena Chopra
- Division of Infectious Diseases, Wayne State University School of Medicine, Detroit, MI, USA
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Bu L, Wang C, Bai J, Song J, Zhang Y, Chen H, Suo H. Gut microbiome-based therapies for alleviating cognitive impairment: state of the field, limitations, and future perspectives. Food Funct 2024; 15:1116-1134. [PMID: 38224464 DOI: 10.1039/d3fo02307a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Cognitive impairment (CI) is a multifaceted neurological condition that can trigger negative emotions and a range of concurrent symptoms, imposing significant public health and economic burdens on society. Therefore, it is imperative to discover a remedy for CI. Nevertheless, the mechanisms behind the onset of this disease are multifactorial, which makes the search for effective amelioration difficult and complex, hindering the search for effective measures. Intriguingly, preclinical research indicates that gut microbiota by influencing brain function, plays an important role in the progression of CI. Furthermore, numerous preclinical studies have highlighted the potential of probiotics, prebiotics, fecal microbiota transplantation (FMT), and diet in modulating the gut microbiota, thereby ameliorating CI symptoms. This review provides a comprehensive evaluation of CI pathogenesis, emphasizing the contribution of gut microbiota disorders to CI development. It also summarizes and discusses current strategies and mechanisms centered on the synergistic role of gut microbiota modulation in the microbiota-gut-brain axis in CI development. Finally, problems with existing approaches are contemplated and the development of microbial modulation strategies as therapeutic approaches to promote and restore brain cognition is discussed. Further research considerations and directions are highlighted to provide ideas for future CI prevention and treatment strategies.
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Affiliation(s)
- Linli Bu
- College of Food Science, Southwest University, Chongqing 400715, China.
- Modern "Chuan Cai Yu Wei" Food Industry Innovation Research Institute, Chongqing 400715, China
| | - Chen Wang
- College of Food Science, Southwest University, Chongqing 400715, China.
- Modern "Chuan Cai Yu Wei" Food Industry Innovation Research Institute, Chongqing 400715, China
| | - Junying Bai
- Citrus Research Institute, Southwest University, Chongqing 400715, China
| | - Jiajia Song
- College of Food Science, Southwest University, Chongqing 400715, China.
- Modern "Chuan Cai Yu Wei" Food Industry Innovation Research Institute, Chongqing 400715, China
| | - Yuhong Zhang
- Institute of Food Sciences and Technology, Tibet Academy of Agricultural and Animal Husbandry Sciences, Xizang 850000, China
| | - Hongyu Chen
- College of Food Science, Southwest University, Chongqing 400715, China.
- Modern "Chuan Cai Yu Wei" Food Industry Innovation Research Institute, Chongqing 400715, China
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing 400715, China.
- Modern "Chuan Cai Yu Wei" Food Industry Innovation Research Institute, Chongqing 400715, China
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Miller BC, Mathai M, Yadav H, Jain S. Geroprotective potential of microbiome modulators in the Caenorhabditis elegans model. GeroScience 2024; 46:129-151. [PMID: 37561384 PMCID: PMC10828408 DOI: 10.1007/s11357-023-00901-7] [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: 01/11/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023] Open
Abstract
Aging is associated with cellular and physiological changes, which significantly reduce the quality of life and increase the risk for disease. Geroprotectors improve lifespan and slow the progression of detrimental aging-related changes such as immune system senescence, mitochondrial dysfunction, and dysregulated nutrient sensing and metabolism. Emerging evidence suggests that gut microbiota dysbiosis is a hallmark of aging-related diseases and microbiome modulators, such as probiotics (live bacteria) or postbiotics (non-viable bacteria/bacterial byproducts) may be promising geroprotectors. However, because they are strain-specific, the geroprotective effects of probiotics and postbiotics remain poorly understood and understudied. Drosophila melanogaster, Caenorhabditis elegans, and rodents are well-validated preclinical models for studying lifespan and the role of probiotics and/or postbiotics, but each have their limitations, including cost and their translation to human aging biology. C. elegans is an excellent model for large-scale screening to determine the geroprotective potential of drugs or probiotics/postbiotics due to its short lifecycle, easy maintenance, low cost, and homology to humans. The purpose of this article is to review the geroprotective effects of microbiome modulators and their future scope, using C. elegans as a model. The proposed geroprotective mechanisms of these probiotics and postbiotics include delaying immune system senescence, preventing or reducing mitochondrial dysfunction, and regulating food intake (dietary restriction) and metabolism. More studies are warranted to understand the geroprotective potential of probiotics and postbiotics, as well as other microbiome modulators, like prebiotics and fermented foods, and use them to develop effective therapeutics to extend lifespan and reduce the risk of debilitating aging-related diseases.
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Affiliation(s)
- Brandi C Miller
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
| | - Megha Mathai
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
| | - Hariom Yadav
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
| | - Shalini Jain
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA.
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA.
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Kadyan S, Park G, Hochuli N, Miller K, Wang B, Nagpal R. Resistant starches from dietary pulses improve neurocognitive health via gut-microbiome-brain axis in aged mice. Front Nutr 2024; 11:1322201. [PMID: 38352704 PMCID: PMC10864001 DOI: 10.3389/fnut.2024.1322201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/10/2024] [Indexed: 02/16/2024] Open
Abstract
Introduction Cognitive decline is a common consequence of aging. Dietary patterns that lack fibers and are high in saturated fats worsen cognitive impairment by triggering pro-inflammatory pathways and metabolic dysfunctions. Emerging evidence highlights the neurocognitive benefits of fiber-rich diets and the crucial role of gut-microbiome-brain signaling. However, the mechanisms of this diet-microbiome-brain regulation remain largely unclear. Methods Accordingly, we herein investigated the unexplored neuroprotective mechanisms of dietary pulses-derived resistant starch (RS) in improving aging-associated neurocognitive function in an aged (60-weeks old) murine model carrying a human microbiome. Results and discussion Following 20-weeks dietary regimen which included a western-style diet without (control; CTL) or with 5% w/w fortification with RS from pinto beans (PTB), black-eyed-peas (BEP), lentils (LEN), chickpeas (CKP), or inulin fiber (INU), we find that RS, particularly from LEN, ameliorate the cognitive impairments induced by western diet. Mechanistically, RS-mediated improvements in neurocognitive assessments are attributed to positive remodeling of the gut microbiome-metabolome arrays, which include increased short-chain fatty acids and reduced branched-chain amino acids levels. This microbiome-metabolite-brain signaling cascade represses neuroinflammation, cellular senescence, and serum leptin/insulin levels, while enhancing lipid metabolism through improved hepatic function. Altogether, the data demonstrate the prebiotic effects of RS in improving neurocognitive function via modulating the gut-brain axis.
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Affiliation(s)
- Saurabh Kadyan
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL, United States
| | - Gwoncheol Park
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL, United States
| | - Nathaniel Hochuli
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL, United States
| | - Katelyn Miller
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL, United States
| | - Bo Wang
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, FL, United States
| | - Ravinder Nagpal
- The Gut Biome Lab, Department of Health, Nutrition, and Food Sciences, College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL, United States
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Owens LA, Friant S, Martorelli Di Genova B, Knoll LJ, Contreras M, Noya-Alarcon O, Dominguez-Bello MG, Goldberg TL. VESPA: an optimized protocol for accurate metabarcoding-based characterization of vertebrate eukaryotic endosymbiont and parasite assemblages. Nat Commun 2024; 15:402. [PMID: 38195557 PMCID: PMC10776621 DOI: 10.1038/s41467-023-44521-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 12/15/2023] [Indexed: 01/11/2024] Open
Abstract
Protocols for characterizing taxonomic assemblages by deep sequencing of short DNA barcode regions (metabarcoding) have revolutionized our understanding of microbial communities and are standardized for bacteria, archaea, and fungi. Unfortunately, comparable methods for host-associated eukaryotes have lagged due to technical challenges. Despite 54 published studies, issues remain with primer complementarity, off-target amplification, and lack of external validation. Here, we present VESPA (Vertebrate Eukaryotic endoSymbiont and Parasite Analysis) primers and optimized metabarcoding protocol for host-associated eukaryotic community analysis. Using in silico prediction, panel PCR, engineered mock community standards, and clinical samples, we demonstrate VESPA to be more effective at resolving host-associated eukaryotic assemblages than previously published methods and to minimize off-target amplification. When applied to human and non-human primate samples, VESPA enables reconstruction of host-associated eukaryotic endosymbiont communities more accurately and at finer taxonomic resolution than microscopy. VESPA has the potential to advance basic and translational science on vertebrate eukaryotic endosymbiont communities, similar to achievements made for bacterial, archaeal, and fungal microbiomes.
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Affiliation(s)
- Leah A Owens
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA.
| | - Sagan Friant
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Department of Anthropology, The Pennsylvania State University, University Park, PA, USA
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Bruno Martorelli Di Genova
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, USA
- Department of Microbiology and Molecular Genetics, Larner College of Medicine, The University of Vermont, Burlington, VT, USA
| | - Laura J Knoll
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, USA
| | - Monica Contreras
- Center for Biophysics and Biochemistry, Venezuelan Institute of Scientific Research (IVIC), Caracas, Venezuela
| | - Oscar Noya-Alarcon
- Centro Amazónico de Investigación y Control de Enfermedades Tropicales-CAICET, Puerto Ayacucho, Amazonas, Venezuela
| | - Maria G Dominguez-Bello
- Department of Biochemistry and Microbiology, Rutgers University-New Brunswick, New Brunswick, NJ, USA
- Department of Anthropology, Rutgers University, New Brunswick, NJ, USA
- Institute for Food, Nutrition and Health, Rutgers University, New Brunswick, NJ, USA
- Canadian Institute for Advanced Research (CIFAR), Toronto, ON, Canada
| | - Tony L Goldberg
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA.
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Tenchov R, Sasso JM, Wang X, Zhou QA. Aging Hallmarks and Progression and Age-Related Diseases: A Landscape View of Research Advancement. ACS Chem Neurosci 2024; 15:1-30. [PMID: 38095562 PMCID: PMC10767750 DOI: 10.1021/acschemneuro.3c00531] [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: 08/11/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 01/04/2024] Open
Abstract
Aging is a dynamic, time-dependent process that is characterized by a gradual accumulation of cell damage. Continual functional decline in the intrinsic ability of living organisms to accurately regulate homeostasis leads to increased susceptibility and vulnerability to diseases. Many efforts have been put forth to understand and prevent the effects of aging. Thus, the major cellular and molecular hallmarks of aging have been identified, and their relationships to age-related diseases and malfunctions have been explored. Here, we use data from the CAS Content Collection to analyze the publication landscape of recent aging-related research. We review the advances in knowledge and delineate trends in research advancements on aging factors and attributes across time and geography. We also review the current concepts related to the major aging hallmarks on the molecular, cellular, and organismic level, age-associated diseases, with attention to brain aging and brain health, as well as the major biochemical processes associated with aging. Major age-related diseases have been outlined, and their correlations with the major aging features and attributes are explored. We hope this review will be helpful for apprehending the current knowledge in the field of aging mechanisms and progression, in an effort to further solve the remaining challenges and fulfill its potential.
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Affiliation(s)
- Rumiana Tenchov
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Janet M. Sasso
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Xinmei Wang
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Qiongqiong Angela Zhou
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
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Bradley E, Haran J. The human gut microbiome and aging. Gut Microbes 2024; 16:2359677. [PMID: 38831607 PMCID: PMC11152108 DOI: 10.1080/19490976.2024.2359677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
The composition of the human gut microbiome has been observed to change over the course of an individual's life. From birth, it is shaped by mode of delivery, diet, environmental exposures, geographic location, exposures to medications, and by aging itself. Here, we present a narrative review of the gut microbiome across the lifespan with a focus on its impacts on aging and age-related diseases in humans. We will describe how it is shaped, and features of the gut microbiome that have been associated with diseases at different phases of life and how this can adversely affect healthy aging. Across the lifespan, and especially in old age, a diverse microbiome that includes organisms suspected to produce anti-inflammatory metabolites such as short-chain fatty acids, has been reported to be associated with healthy aging. These findings have been remarkably consistent across geographic regions of the world suggesting that they could be universal features of healthy aging across all cultures and genetic backgrounds. Exactly how these features of the microbiome affect biologic processes associated with aging thus promoting healthy aging will be crucial to targeting the gut microbiome for interventions that will support health and longevity.
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Affiliation(s)
- Evan Bradley
- UMass Chan Medical School, Department of Emergency Medicine and Department of Microbiology and Physiologic Systems, Program in Microbiome Dynamics, Worcester, MA, USA
| | - John Haran
- UMass Chan Medical School, Department of Emergency Medicine and Department of Microbiology and Physiologic Systems, Program in Microbiome Dynamics, Worcester, MA, USA
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Martins C, Magalhães S, Almeida I, Neto V, Rebelo S, Nunes A. Metabolomics to Study Human Aging: A Review. Curr Mol Med 2024; 24:457-477. [PMID: 37026499 DOI: 10.2174/1566524023666230407123727] [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: 11/07/2022] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 04/08/2023]
Abstract
In the last years, with the increase in the average life expectancy, the world's population is progressively aging, which entails social, health and economic problems. In this sense, the need to better understand the physiology of the aging process becomes an urgent need. Since the study of aging in humans is challenging, cellular and animal models are widely used as alternatives. Omics, namely metabolomics, have emerged in the study of aging, with the aim of biomarker discovering, which may help to uncomplicate this complex process. This paper aims to summarize different models used for aging studies with their advantages and limitations. Also, this review gathers the published articles referring to biomarkers of aging already discovered using metabolomics approaches, comparing the results obtained in the different studies. Finally, the most frequently used senescence biomarkers are described, along with their importance in understanding aging.
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Affiliation(s)
- Claudia Martins
- Department of Medical Sciences, iBiMED: Institute of Biomedicine, University of Aveiro, Agra do Crasto, Aveiro 3810-193, Portugal
| | - Sandra Magalhães
- Department of Surgery and Physiology, Faculty of Medicine, UnIC@RISE, Cardiovascular Research & Development Centre, University of Porto, Alameda Prof. Hernâni Monteiro, Porto 4200-319, Portugal
| | - Idália Almeida
- Department of Medical Sciences, iBiMED: Institute of Biomedicine, University of Aveiro, Agra do Crasto, Aveiro 3810-193, Portugal
- CICECO: Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, Aveiro 3810-193, Portugal
| | - Vanessa Neto
- Department of Medical Sciences, iBiMED: Institute of Biomedicine, University of Aveiro, Agra do Crasto, Aveiro 3810-193, Portugal
| | - Sandra Rebelo
- Department of Medical Sciences, iBiMED: Institute of Biomedicine, University of Aveiro, Agra do Crasto, Aveiro 3810-193, Portugal
| | - Alexandra Nunes
- Department of Medical Sciences, iBiMED: Institute of Biomedicine, University of Aveiro, Agra do Crasto, Aveiro 3810-193, Portugal
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Jiang S, Ma W, Ma C, Zhang Z, Zhang W, Zhang J. An emerging strategy: probiotics enhance the effectiveness of tumor immunotherapy via mediating the gut microbiome. Gut Microbes 2024; 16:2341717. [PMID: 38717360 PMCID: PMC11085971 DOI: 10.1080/19490976.2024.2341717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 04/08/2024] [Indexed: 05/12/2024] Open
Abstract
The occurrence and progression of tumors are often accompanied by disruptions in the gut microbiota. Inversely, the impact of the gut microbiota on the initiation and progression of cancer is becoming increasingly evident, influencing the tumor microenvironment (TME) for both local and distant tumors. Moreover, it is even suggested to play a significant role in the process of tumor immunotherapy, contributing to high specificity in therapeutic outcomes and long-term effectiveness across various cancer types. Probiotics, with their generally positive influence on the gut microbiota, may serve as effective agents in synergizing cancer immunotherapy. They play a crucial role in activating the immune system to inhibit tumor growth. In summary, this comprehensive review aims to provide valuable insights into the dynamic interactions between probiotics, gut microbiota, and cancer. Furthermore, we highlight recent advances and mechanisms in using probiotics to improve the effectiveness of cancer immunotherapy. By understanding these complex relationships, we may unlock innovative approaches for cancer diagnosis and treatment while optimizing the effects of immunotherapy.
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Affiliation(s)
- Shuaiming Jiang
- School of Food Science and Engineering, Hainan University, Haikou, PR China
| | - Wenyao Ma
- School of Food Science and Engineering, Hainan University, Haikou, PR China
| | - Chenchen Ma
- Department of Human Cell Biology and Genetics, Southern University of Science and Technology, Shenzhen, PR China
| | - Zeng Zhang
- School of Food Science and Engineering, Hainan University, Haikou, PR China
| | - Wanli Zhang
- School of Food Science and Engineering, Hainan University, Haikou, PR China
| | - Jiachao Zhang
- School of Food Science and Engineering, Hainan University, Haikou, PR China
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Kiran NS, Yashaswini C, Chatterjee A. Noxious ramifications of cosmetic pollutants on gastrointestinal microbiome: A pathway to neurological disorders. Life Sci 2024; 336:122311. [PMID: 38043908 DOI: 10.1016/j.lfs.2023.122311] [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: 08/04/2023] [Revised: 11/10/2023] [Accepted: 11/24/2023] [Indexed: 12/05/2023]
Abstract
On exposure to cosmetic pollutants, gastrointestinal dysbiosis, which is characterised by a disturbance in the gut microbiota, has come into focus as a possible contributor to the occurrence of neurotoxic consequences. It is normal practice to use personal care products that include parabens, phthalates, sulphates, triclosans/triclocarbans and micro/nano plastics. These substances have been found in a variety of bodily fluids and tissues, demonstrating their systemic dispersion. Being exposed to these cosmetic pollutants has been linked in recent research to neurotoxicity, including cognitive decline and neurodevelopmental problems. A vital part of sustaining gut health and general well-being is the gut flora. Increased intestinal permeability, persistent inflammation, and impaired metabolism may result from disruption of the gut microbial environment, which may in turn contribute to neurotoxicity. The link between gastrointestinal dysbiosis and the neurotoxic effects brought on by cosmetic pollutants may be explained by a number of processes, primarily the gut-brain axis. For the purpose of creating preventative and therapeutic measures, it is crucial to comprehend the intricate interactions involving cosmetic pollutants, gastrointestinal dysbiosis, and neurotoxicity. This review provides an in-depth understanding of the various hazardous cosmetic pollutants and its potential role in the occurrence of neurological disorders via gastrointestinal dysbiosis, providing insights into various described and hypothetical mechanisms regarding the complex toxic effects of these industrial pollutants.
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Affiliation(s)
- Neelakanta Sarvashiva Kiran
- Department of Biotechnology, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, Karnataka 560064, India
| | - Chandrashekar Yashaswini
- Department of Biotechnology, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, Karnataka 560064, India
| | - Ankita Chatterjee
- Department of Biotechnology, School of Applied Sciences, REVA University, Kattigenahalli, Yelahanka, Bangalore, Karnataka 560064, India.
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50
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Nohesara S, Abdolmaleky HM, Thiagalingam S, Zhou JR. Gut microbiota defined epigenomes of Alzheimer's and Parkinson's diseases reveal novel targets for therapy. Epigenomics 2024; 16:57-77. [PMID: 38088063 PMCID: PMC10804213 DOI: 10.2217/epi-2023-0342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/20/2023] [Indexed: 01/06/2024] Open
Abstract
The origins of Alzheimer's disease (AD) and Parkinson's disease (PD) involve genetic mutations, epigenetic changes, neurotoxin exposure and gut microbiota dysregulation. The gut microbiota's dynamic composition and its metabolites influence intestinal and blood-brain barrier integrity, contributing to AD and PD development. This review explores protein misfolding, aggregation and epigenetic links in AD and PD pathogenesis. It also highlights the role of a leaky gut and the microbiota-gut-brain axis in promoting these diseases through inflammation-induced epigenetic alterations. In addition, we investigate the potential of diet, probiotics and microbiota transplantation for preventing and treating AD and PD via epigenetic modifications, along with a discussion related to current challenges and future considerations. These approaches offer promise for translating research findings into practical clinical applications.
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Affiliation(s)
- Shabnam Nohesara
- Department of Medicine (Biomedical Genetics), Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118, USA
| | - Hamid Mostafavi Abdolmaleky
- Department of Medicine (Biomedical Genetics), Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118, USA
- Department of Surgery, Nutrition/Metabolism laboratory, Beth Israel Deaconess Medical Center, Harvard Medical School, Boson, MA 02215, USA
| | - Sam Thiagalingam
- Department of Medicine (Biomedical Genetics), Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118, USA
- Department of Pathology & Laboratory Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118, USA
| | - Jin-Rong Zhou
- Department of Surgery, Nutrition/Metabolism laboratory, Beth Israel Deaconess Medical Center, Harvard Medical School, Boson, MA 02215, USA
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