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Flori L, Benedetti G, Martelli A, Calderone V. Microbiota alterations associated with vascular diseases: postbiotics as a next-generation magic bullet for gut-vascular axis. Pharmacol Res 2024; 207:107334. [PMID: 39103131 DOI: 10.1016/j.phrs.2024.107334] [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: 05/14/2024] [Revised: 07/11/2024] [Accepted: 07/29/2024] [Indexed: 08/07/2024]
Abstract
The intestinal microbiota represents a key element in maintaining the homeostasis and health conditions of the host. Vascular pathologies and other risk factors such as aging have been recently associated with dysbiosis. The qualitative and quantitative alteration of the intestinal microbiota hinders correct metabolic homeostasis, causing structural and functional changes of the intestinal wall itself. Impairment of the intestinal microbiota, combined with the reduction of the barrier function, worsen the pathological scenarios of peripheral tissues over time, including the vascular one. Several experimental evidence, collected in this review, describes in detail the changes of the intestinal microbiota in dysbiosis associated with vascular alterations, such as atherosclerosis, hypertension, and endothelial dysfunction, the resulting metabolic disorders and how these can impact on vascular health. In this context, the gut-vascular axis is considered, for the first time, as a merged unit involved in the development and progression of vascular pathologies and as a promising target. Current approaches for the management of dysbiosis such as probiotics, prebiotics and dietary modifications act mainly on the intestinal district. Postbiotics, described as preparation of inanimate microorganisms and/or their components that confers health benefits on the host, represent an innovative strategy for a dual management of intestinal dysbiosis and vascular pathologies. In this context, this review has the further purpose of defining the positive effects of the supplementation of bacterial strains metabolites (short‑chain fatty acids, exopolysaccharides, lipoteichoic acids, gallic acid, and protocatechuic acid) restoring intestinal homeostasis and acting directly on the vascular district through the gut-vascular axis.
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Affiliation(s)
- Lorenzo Flori
- Department of Pharmacy, University of Pisa, via Bonanno 6-56120 Pisa, Italy.
| | - Giada Benedetti
- Department of Pharmacy, University of Pisa, via Bonanno 6-56120 Pisa, Italy.
| | - Alma Martelli
- Department of Pharmacy, University of Pisa, via Bonanno 6-56120 Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, 56120, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, 56120, Italy.
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, via Bonanno 6-56120 Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, 56120, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, 56120, Italy.
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2
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Toyber I, Kumar R, Jami E. Rumen protozoa are a hub for diverse hydrogenotrophic functions. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13298. [PMID: 38961629 PMCID: PMC11222294 DOI: 10.1111/1758-2229.13298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 05/08/2024] [Indexed: 07/05/2024]
Abstract
Ciliate protozoa are an integral part of the rumen microbial community involved in a variety of metabolic processes. These processes are thought to be in part the outcome of interactions with their associated prokaryotic community. For example, methane production is enhanced through interspecies hydrogen transfer between protozoa and archaea. We hypothesize that ciliate protozoa are host to a stable prokaryotic community dictated by specific functions they carry. Here, we modify the microbial community by varying the forage-to-concentrate ratios and show that, despite major changes in the prokaryotic community, several taxa remain stably associated with ciliate protozoa. By quantifying genes belonging to various known reduction pathways in the rumen, we find that the bacterial community associated with protozoa is enriched in genes belonging to hydrogen utilization pathways and that these genes correspond to the same taxonomic affiliations seen enriched in protozoa. Our results show that ciliate protozoa in the rumen may serve as a hub for various hydrogenotrophic functions and a better understanding of the processes driven by different protozoa may unveil the potential role of ciliates in shaping rumen metabolism.
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Affiliation(s)
- Ido Toyber
- Department of Ruminant Science, Institute of Animal SciencesAgricultural Research Organization, Volcani CenterRishon LeZionIsrael
- Department of Animal Sciencethe Hebrew University of JerusalemRehovotIsrael
| | - Raghawendra Kumar
- Department of Ruminant Science, Institute of Animal SciencesAgricultural Research Organization, Volcani CenterRishon LeZionIsrael
| | - Elie Jami
- Department of Ruminant Science, Institute of Animal SciencesAgricultural Research Organization, Volcani CenterRishon LeZionIsrael
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3
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Liu M, Li S, Cao S, Liu C, Han Y, Cheng J, Zhang S, Zhao J, Shi Y. Let food be your medicine - dietary fiber. Food Funct 2024; 15:7733-7756. [PMID: 38984439 DOI: 10.1039/d3fo05641d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Dietary fiber (DF) cannot be digested and absorbed by the digestive tract, nor can it provide the energy needed to be burned for metabolic activities. Therefore, from the 1950s to the 1980s, DF received little attention in nutrition studies. With in-depth research and developments in global nutrition, people have gradually paid attention to the fact that DF occupies an essential position in the structure of nutrition, and it can ensure the healthy development of human beings. As early as 390 B.C., the ancient Greek physician Hippocrates proposed, "Let your food be your medicine, and your medicine be your food". This concept has been more systematically validated in modern scientific research, with numerous epidemiological studies showing that the dietary intake of DF-rich foods such as whole grains, root vegetables, legumes, and fruits has the potential to regulate the balance of the gut microbiota and thereby prevent diseases. However, the crosstalk between different types of DF and the gut microbiota is quite complex, and the effects on the organism vary. In this paper, we discuss research on DF and the gut microbiota and related diseases, aiming to understand the relationship between all three better and provide a reference basis for the risk reduction of related diseases.
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Affiliation(s)
- Mengqi Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
| | - Shouren Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
| | - Shixi Cao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
| | - Cong Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
| | - Yao Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
| | - Jiawen Cheng
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
| | - Shuhang Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, Arkansas, USA
| | - Yinghua Shi
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
- Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou, China
- Henan Forage Engineering Technology Research Center, Zhengzhou, Henan, 450002, China
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4
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Zhang X, Zhang X, Yang Y. Update of gut gas metabolism in ulcerative colitis. Expert Rev Gastroenterol Hepatol 2024:1-11. [PMID: 39031456 DOI: 10.1080/17474124.2024.2383635] [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: 12/11/2023] [Accepted: 07/19/2024] [Indexed: 07/22/2024]
Abstract
INTRODUCTION Ulcerative colitis (UC) is a chronic, nonspecific inflammatory disease of the intestine. The intestinal microbiota is essential in the occurrence and development of UC. Gut gases are produced via bacterial fermentation or chemical interactions, which can reveal altered intestinal microbiota, abnormal cellular metabolism, and inflammation responses. Recent studies have demonstrated that UC patients have an altered gut gas metabolism. AREAS COVERED In this review, we integrate gut gas metabolism advances in UC and discuss intestinal gases' clinical values as new biomarkers or therapeutic targets for UC, providing the foundation for further research. Literature regarding gut gas metabolism and its significance in UC from inception to October 2023 was searched on the MEDLINE database and references from relevant articles were investigated. EXPERT OPINION Depending on their type, concentration, and volume, gut gases can induce or alleviate clinical symptoms and regulate intestinal motility, inflammatory responses, immune function, and oxidative stress, significantly impacting UC. Gut gases may function as new biomarkers and provide potential diagnostic or therapeutic targets for UC.
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Affiliation(s)
- Xiaohan Zhang
- Medical School, Nankai University, Tianjin, China
- Microbiota Division, Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xiuli Zhang
- Microbiota Division, Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yunsheng Yang
- Microbiota Division, Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
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5
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Greening C, Cabotaje PR, Valentin Alvarado LE, Leung PM, Land H, Rodrigues-Oliveira T, Ponce-Toledo RI, Senger M, Klamke MA, Milton M, Lappan R, Mullen S, West-Roberts J, Mao J, Song J, Schoelmerich M, Stairs CW, Schleper C, Grinter R, Spang A, Banfield JF, Berggren G. Minimal and hybrid hydrogenases are active from archaea. Cell 2024; 187:3357-3372.e19. [PMID: 38866018 PMCID: PMC11216029 DOI: 10.1016/j.cell.2024.05.032] [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: 06/17/2023] [Revised: 04/12/2024] [Accepted: 05/16/2024] [Indexed: 06/14/2024]
Abstract
Microbial hydrogen (H2) cycling underpins the diversity and functionality of diverse anoxic ecosystems. Among the three evolutionarily distinct hydrogenase superfamilies responsible, [FeFe] hydrogenases were thought to be restricted to bacteria and eukaryotes. Here, we show that anaerobic archaea encode diverse, active, and ancient lineages of [FeFe] hydrogenases through combining analysis of existing and new genomes with extensive biochemical experiments. [FeFe] hydrogenases are encoded by genomes of nine archaeal phyla and expressed by H2-producing Asgard archaeon cultures. We report an ultraminimal hydrogenase in DPANN archaea that binds the catalytic H-cluster and produces H2. Moreover, we identify and characterize remarkable hybrid complexes formed through the fusion of [FeFe] and [NiFe] hydrogenases in ten other archaeal orders. Phylogenetic analysis and structural modeling suggest a deep evolutionary history of hybrid hydrogenases. These findings reveal new metabolic adaptations of archaea, streamlined H2 catalysts for biotechnological development, and a surprisingly intertwined evolutionary history between the two major H2-metabolizing enzymes.
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Affiliation(s)
- Chris Greening
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; SAEF: Securing Antarctica's Environmental Future, Monash University, Clayton, VIC, Australia.
| | - Princess R Cabotaje
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Luis E Valentin Alvarado
- Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94709, USA
| | - Pok Man Leung
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; SAEF: Securing Antarctica's Environmental Future, Monash University, Clayton, VIC, Australia
| | - Henrik Land
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Thiago Rodrigues-Oliveira
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Vienna, Austria
| | - Rafael I Ponce-Toledo
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Vienna, Austria
| | - Moritz Senger
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Max A Klamke
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Michael Milton
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Rachael Lappan
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; SAEF: Securing Antarctica's Environmental Future, Monash University, Clayton, VIC, Australia
| | - Susan Mullen
- Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94709, USA
| | - Jacob West-Roberts
- Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94709, USA
| | - Jie Mao
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Jiangning Song
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Marie Schoelmerich
- Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94709, USA
| | | | - Christa Schleper
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Vienna, Austria
| | - Rhys Grinter
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.
| | - Anja Spang
- Department of Marine Microbiology and Biogeochemistry, Royal Netherlands Institute for Sea Research, Den Hoorn, the Netherlands; Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands.
| | - Jillian F Banfield
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94709, USA.
| | - Gustav Berggren
- Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, Sweden.
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6
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McCurry MD, D'Agostino GD, Walsh JT, Bisanz JE, Zalosnik I, Dong X, Morris DJ, Korzenik JR, Edlow AG, Balskus EP, Turnbaugh PJ, Huh JR, Devlin AS. Gut bacteria convert glucocorticoids into progestins in the presence of hydrogen gas. Cell 2024; 187:2952-2968.e13. [PMID: 38795705 PMCID: PMC11179439 DOI: 10.1016/j.cell.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 02/03/2024] [Accepted: 05/02/2024] [Indexed: 05/28/2024]
Abstract
Recent studies suggest that human-associated bacteria interact with host-produced steroids, but the mechanisms and physiological impact of such interactions remain unclear. Here, we show that the human gut bacteria Gordonibacter pamelaeae and Eggerthella lenta convert abundant biliary corticoids into progestins through 21-dehydroxylation, thereby transforming a class of immuno- and metabo-regulatory steroids into a class of sex hormones and neurosteroids. Using comparative genomics, homologous expression, and heterologous expression, we identify a bacterial gene cluster that performs 21-dehydroxylation. We also uncover an unexpected role for hydrogen gas production by gut commensals in promoting 21-dehydroxylation, suggesting that hydrogen modulates secondary metabolism in the gut. Levels of certain bacterial progestins, including allopregnanolone, better known as brexanolone, an FDA-approved drug for postpartum depression, are substantially increased in feces from pregnant humans. Thus, bacterial conversion of corticoids into progestins may affect host physiology, particularly in the context of pregnancy and women's health.
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Affiliation(s)
- Megan D McCurry
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Gabriel D D'Agostino
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Jasmine T Walsh
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Jordan E Bisanz
- Department of Biochemistry & Molecular Biology, Pennsylvania State University, State College, PA 16802, USA
| | - Ines Zalosnik
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Xueyang Dong
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - David J Morris
- Emeritus Professor of Pathology and Laboratory Medicine, Brown University Alpert School of Medicine, Providence, RI 02903, USA
| | - Joshua R Korzenik
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham & Women's Hospital, Boston, MA 02115, USA
| | - Andrea G Edlow
- Department of Obstetrics & Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Emily P Balskus
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, MA 02138, USA; Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02138, USA
| | - Peter J Turnbaugh
- Department of Microbiology & Immunology, University of California, San Francisco, San Francisco, CA 94143, USA; Chan Zuckerberg Biohub-San Francisco, San Francisco, CA 94158, USA
| | - Jun R Huh
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - A Sloan Devlin
- Department of Biological Chemistry & Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
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7
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Arturo Tozzi, Minella R. Dynamics and metabolic effects of intestinal gases in healthy humans. Biochimie 2024; 221:81-90. [PMID: 38325747 DOI: 10.1016/j.biochi.2024.02.001] [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: 11/04/2023] [Revised: 01/06/2024] [Accepted: 02/03/2024] [Indexed: 02/09/2024]
Abstract
Many living beings use exogenous and/or endogenous gases to attain evolutionary benefits. We make a comprehensive assessment of one of the major gaseous reservoirs in the human body, i.e., the bowel, providing extensive data that may serve as reference for future studies. We assess the intestinal gases in healthy humans, including their volume, composition, source and local distribution in proximal as well as distal gut. We analyse each one of the most abundant intestinal gases including nitrogen, oxygen, nitric oxide, carbon dioxide, methane, hydrogen, hydrogen sulfide, sulfur dioxide and cyanide. For every gas, we describe diffusive patterns, active trans-barrier transport dynamics, chemical properties, intra-/extra-intestinal metabolic effects mediated by intracellular, extracellular, paracrine and distant actions. Further, we highlight the local and systemic roles of gasotransmitters, i.e., signalling gaseous molecules that can freely diffuse through the intestinal cellular membranes. Yet, we provide testable hypotheses concerning the still unknown effects of some intestinal gases on the myenteric and submucosal neurons.
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Affiliation(s)
- Arturo Tozzi
- Center for Nonlinear Science, Department of Physics, University of North Texas, 1155 Union Circle, #311427, Denton, TX, 76203-5017, USA.
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8
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Pimenta AI, Bernardino RM, Pereira IAC. Role of sulfidogenic members of the gut microbiota in human disease. Adv Microb Physiol 2024; 85:145-200. [PMID: 39059820 DOI: 10.1016/bs.ampbs.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
The human gut flora comprises a dynamic network of bacterial species that coexist in a finely tuned equilibrium. The interaction with intestinal bacteria profoundly influences the host's development, metabolism, immunity, and overall health. Furthermore, dysbiosis, a disruption of the gut microbiota, can induce a variety of diseases, not exclusively associated with the intestinal tract. The increased consumption of animal protein, high-fat and high-sugar diets in Western countries has been implicated in the rise of chronic and inflammatory illnesses associated with dysbiosis. In particular, this diet leads to the overgrowth of sulfide-producing bacteria, known as sulfidogenic bacteria, which has been linked to inflammatory bowel diseases and colorectal cancer, among other disorders. Sulfidogenic bacteria include sulfate-reducing bacteria (Desulfovibrio spp.) and Bilophila wadsworthia among others, which convert organic and inorganic sulfur compounds to sulfide through the dissimilatory sulfite reduction pathway. At high concentrations, sulfide is cytotoxic and disrupts the integrity of the intestinal epithelium and mucus barrier, triggering inflammation. Besides producing sulfide, B. wadsworthia has revealed significant pathogenic potential, demonstrated in the ability to cause infection, adhere to intestinal cells, promote inflammation, and compromise the integrity of the colonic mucus layer. This review delves into the mechanisms by which taurine and sulfide-driven gut dysbiosis contribute to the pathogenesis of sulfidogenic bacteria, and discusses the role of these gut microbes, particularly B. wadsworthia, in human diseases.
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Affiliation(s)
- Andreia I Pimenta
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Raquel M Bernardino
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Inês A C Pereira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal.
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9
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Chen X, Xia Y, Wu Y, Xu Y, Jia X, Zare RN, Wang F. Sprayed Oil-Water Microdroplets as a Hydrogen Source. J Am Chem Soc 2024; 146:10868-10874. [PMID: 38573037 DOI: 10.1021/jacs.4c01455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Liquid water provides the largest hydrogen reservoir on the earth's surface. Direct utilization of water as a source of hydrogen atoms and molecules is fundamental to the evolution of the ecosystem and industry. However, liquid water is an unfavorable electron donor for forming these hydrogen species owing to its redox inertness. We report oil-mediated electron extraction from water microdroplets, which is easily achieved by ultrasonically spraying an oil-water emulsion. Based on charge measurement and electron paramagnetic resonance spectroscopy, contact electrification between oil and a water microdroplet is demonstrated to be the origin of electron extraction from water molecules. This contact electrification results in enhanced charge separation and subsequent mutual neutralization, which enables a ∼13-fold increase of charge carriers in comparison with an ultrapure water spray, leading to a ∼16-fold increase of spray-sourced hydrogen that can hydrogenate CO2 to selectively produce CO. These findings emphasize the potential of charge separation enabled by spraying an emulsion of liquid water and a hydrophobic liquid in driving hydrogenation reactions.
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Affiliation(s)
- Xuke Chen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu Xia
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Yingfeng Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450000, P. R. China
| | - Yunpeng Xu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Xiuquan Jia
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Richard N Zare
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Feng Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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10
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Zhou W, Zhang J, Chen W, Miao C. Prospects of molecular hydrogen in cancer prevention and treatment. J Cancer Res Clin Oncol 2024; 150:170. [PMID: 38555538 PMCID: PMC10982102 DOI: 10.1007/s00432-024-05685-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/04/2024] [Indexed: 04/02/2024]
Abstract
Gas signaling molecules, including carbon monoxide (CO), nitric oxide (NO), and hydrogen sulfide (H2S), have been shown to have cancer therapeutic potential, pointing to a new direction for cancer treatment. In recent years, a series of studies have confirmed that hydrogen (H2), a weakly reductive gas, also has therapeutic effects on various cancers and can mitigate oxidative stress caused by radiation and chemotherapy, reducing tissue damage and immunosuppression to improve prognosis. Meanwhile, H2 also has immunomodulatory effects, inhibiting T cell exhaustion and enhancing T cell anti-tumor function. It is worth noting that human intestinal flora can produce large amounts of H2 daily, which becomes a natural barrier to maintaining the body's resistance to diseases such as tumors. Although the potential anti-tumor mechanisms of H2 are still to be investigated, previous studies have shown that H2 can selectively scavenge highly toxic reactive oxygen species (ROS) and inhibit various ROS-dependent signaling pathways in cancer cells, thus inhibiting cancer cell proliferation and metastasis. The ROS scavenging ability of H2 may also be the underlying mechanism of its immunomodulatory function. In this paper, we review the significance of H2 produced by intestinal flora on the immune homeostasis of the body, the role of H2 in cancer therapy and the underlying mechanisms, and the specific application of H2 to provide new ideas for the comprehensive treatment of cancer patients.
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Affiliation(s)
- Wenchang Zhou
- Department of Anesthesiology; Cancer Center, Zhongshan Hospital, Fudan University, No. 180 Feng-Lin Road, Shanghai, 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Jie Zhang
- Department of Anesthesiology; Cancer Center, Zhongshan Hospital, Fudan University, No. 180 Feng-Lin Road, Shanghai, 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China
| | - Wankun Chen
- Department of Anesthesiology; Cancer Center, Zhongshan Hospital, Fudan University, No. 180 Feng-Lin Road, Shanghai, 200032, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
| | - Changhong Miao
- Department of Anesthesiology; Cancer Center, Zhongshan Hospital, Fudan University, No. 180 Feng-Lin Road, Shanghai, 200032, China.
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai, China.
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11
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Obara T, Naito H, Nojima T, Hirayama T, Hongo T, Ageta K, Aokage T, Hisamura M, Yumoto T, Nakao A. Hydrogen in Transplantation: Potential Applications and Therapeutic Implications. Biomedicines 2024; 12:118. [PMID: 38255223 PMCID: PMC10813693 DOI: 10.3390/biomedicines12010118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 12/25/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Hydrogen gas, renowned for its antioxidant properties, has emerged as a novel therapeutic agent with applications across various medical domains, positioning it as a potential adjunct therapy in transplantation. Beyond its antioxidative properties, hydrogen also exerts anti-inflammatory effects by modulating pro-inflammatory cytokines and signaling pathways. Furthermore, hydrogen's capacity to activate cytoprotective pathways bolsters cellular resilience against stressors. In recent decades, significant advancements have been made in the critical medical procedure of transplantation. However, persistent challenges such as ischemia-reperfusion injury (IRI) and graft rejection continue to hinder transplant success rates. This comprehensive review explores the potential applications and therapeutic implications of hydrogen in transplantation, shedding light on its role in mitigating IRI, improving graft survival, and modulating immune responses. Through a meticulous analysis encompassing both preclinical and clinical studies, we aim to provide valuable insights into the promising utility of hydrogen as a complementary therapy in transplantation.
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Affiliation(s)
| | - Hiromichi Naito
- Department of Emergency, Critical Care, and Disaster Medicine, Faculty of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; (T.O.); (T.N.); (T.H.); (T.H.); (K.A.); (T.A.); (M.H.); (T.Y.); (A.N.)
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12
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Petrisor DC, Etropolska Z, Elenski K, Dimitrova E, Santos J. Efficacy and Safety of Pea Protein and Xyloglucan Versus Simethicone in Functional Abdominal Bloating and Distension. Dig Dis Sci 2024; 69:161-168. [PMID: 37923826 PMCID: PMC10787906 DOI: 10.1007/s10620-023-08155-1] [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: 02/09/2023] [Accepted: 10/10/2023] [Indexed: 11/06/2023]
Abstract
BACKGROUND Functional Abdominal Bloating and Distension (FABD) is a multifaceted condition related in part to trapped gas, with changes in the intestinal barrier and small intestinal bacterial overgrowth (SIBO), which lead to gas production. Currently, there are no treatments targeting the etiology of FABD. METHODS This double-blind, multicenter, randomized study evaluated the safety and efficacy of a product containing xyloglucan and pea proteins (XG + PP) compared with simethicone, both administered orally (three times daily) for 20 consecutive days. Eighty-eight patients with FABD were randomly assigned to the two groups in a 1:1 ratio. Primary outcome was safety; secondary outcomes were (i) efficacy in alleviating the symptoms of FABD and (ii) efficacy in reducing SIBO, as assessed by hydrogen breath test (HBT). RESULTS No Adverse Events or Serious Unexpected Adverse Reactions were reported during the study. XG + PP showed a faster onset of action and a significant reduction in bloating and abdominal pain compared with simethicone. At Day 20, XG + PP drastically reduced abdominal girth when compared with simethicone, with an average reduction of 4.7 cm versus 1.8 cm. At Day 20, the XG + PP arm showed a significant reduction in HBT compared to baseline. CONCLUSIONS This study supports the evidence that FABD patients may benefit from a XG + PP-based treatment that acts on etiology and not just the symptoms.
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Affiliation(s)
| | - Zlatka Etropolska
- Department of Gastroenterology, Ambulatory Practice for Primary Outpatient Medical Care SANA, Sofia, Bulgaria
| | - Kiril Elenski
- Department of Gastroenterology, BROD - Ambulatory Practice for Primary Medical Care, Plovdiv, Bulgaria
| | - Emiliya Dimitrova
- Department of Gastroenterology, Medical Centre Prolet, Ruse, Bulgaria
| | - Javier Santos
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain.
- Department of Gastroenterology, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERHED), Instituto de Salud Carlos III, Madrid, Spain.
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13
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Zhang X, Ma Q, Jia L, He H, Zhang T, Jia W, Zhu L, Qi W, Wang N. Effects of in vitro fermentation of Atractylodes chinensis (DC.) Koidz. polysaccharide on fecal microbiota and metabolites in patients with type 2 diabetes mellitus. Int J Biol Macromol 2023; 253:126860. [PMID: 37716665 DOI: 10.1016/j.ijbiomac.2023.126860] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/01/2023] [Accepted: 09/09/2023] [Indexed: 09/18/2023]
Abstract
Atractylodes chinensis (DC.) Koidz. polysaccharide (AKP) has been shown to have hypoglycemic activity. In this study, the effects of AKP on fecal microbiota and metabolites in healthy subjects and patients with type 2 diabetes mellitus (T2DM) were investigated using an in vitro simulated digestive fermentation model. AKP were isolated and purified from Atractylodes chinensis (DC.) Koidz. Its main component AKP1 (AKP-0 M, about 78 % of AKP) has an average molecular weight of 3.25 kDa with monosaccharide composition of rhamnose, arabinose, and galactosamine in a molar ratio of 1: 1.25: 2.88. Notably, AKP fermentation might improve the intestinal microbiota of T2DM patients by the enrichment of some specific bacteria rather than the increase of microbial diversity. The addition of AKP specifically enriched Bifidobacteriaceae and weakened the proportion of Escherichia-Shigella. Moreover, AKP also increased the levels of short-chain fatty acids without affecting total gut gas production, suggesting that AKP could have beneficial effects while avoiding flatulence. Metabolomic analysis revealed that ARP fermentation caused changes in some metabolites, which were mainly related to energy metabolism and amino acid metabolism. Importantly, ARP fermentation significantly increased the level of myo-inositol, an insulin sensitizer. In addition, a significant correlation was observed between specific microbiota and differential metabolites. This study has laid a theoretical foundation for AKP application in functional foods.
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Affiliation(s)
- Xin Zhang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, Tianjin 300457, China
| | - Qian Ma
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, Tianjin 300457, China
| | - Lina Jia
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, Tianjin 300457, China
| | - Hongpeng He
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, Tianjin 300457, China
| | - Tongcun Zhang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, Tianjin 300457, China
| | - Weiguo Jia
- The Center of Gerontology and Geriatrics, National Clinical Research Center of Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Liying Zhu
- Institute of Food Science Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Wei Qi
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, Tianjin 300457, China.
| | - Nan Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, Tianjin 300457, China.
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Wang T, Leibrock N, Plugge CM, Smidt H, Zoetendal EG. In vitro interactions between Blautia hydrogenotrophica, Desulfovibrio piger and Methanobrevibacter smithii under hydrogenotrophic conditions. Gut Microbes 2023; 15:2261784. [PMID: 37753963 PMCID: PMC10538451 DOI: 10.1080/19490976.2023.2261784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023] Open
Abstract
Methanogens, reductive acetogens and sulfate-reducing bacteria play an important role in disposing of hydrogen in gut ecosystems. However, how they interact with each other remains largely unknown. This in vitro study cocultured Blautia hydrogenotrophica (reductive acetogen), Desulfovibrio piger (sulfate reducer) and Methanobrevibacter smithii (methanogen). Results revealed that these three species coexisted and did not compete for hydrogen in the early phase of incubations. Sulfate reduction was not affected by B. hydrogenotrophica and M. smithii. D. piger inhibited the growth of B. hydrogenotrophica and M. smithii after 10 h incubations, and the inhibition on M. smithii was associated with increased sulfide concentration. Remarkably, M. smithii growth lag phase was shortened by coculturing with B. hydrogenotrophica and D. piger. Formate was rapidly used by M. smithii under high acetate concentration. Overall, these findings indicated that the interactions of the hydrogenotrophic microbes are condition-dependent, suggesting their interactions may vary in gut ecosystems.
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Affiliation(s)
- Taojun Wang
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Nils Leibrock
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Caroline M. Plugge
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
- Wetsus European Centre of Excellence for Sustainable Water Technology, Leeuwarden, The Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Erwin G. Zoetendal
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
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15
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Yau YK, Su Q, Xu Z, Tang W, Ching JYL, Mak JWY, Cheung CP, Fung M, Ip M, Chan PKS, Wu JCY, Chan FKL, Ng SC. Randomised clinical trial: Faecal microbiota transplantation for irritable bowel syndrome with diarrhoea. Aliment Pharmacol Ther 2023; 58:795-804. [PMID: 37667968 DOI: 10.1111/apt.17703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/11/2023] [Accepted: 08/23/2023] [Indexed: 09/06/2023]
Abstract
BACKGROUND Faecal microbiota transplantation (FMT) has been shown to improve symptoms in a proportion of patients with irritable bowel syndrome (IBS). AIM We performed a randomised trial to assess the efficacy of FMT in patients with IBS. METHODS We randomised 56 patients with diarrhoea-predominant IBS 1:1 to FMT or placebo via the duodenal route at baseline and week 4. The primary outcome was > 50 points decrease in IBS severity scoring system (IBS-SSS) score at week 12. Secondary outcomes were improvement in bloating and change in gut microbiota at week 12. After 12-week follow-up, those in the placebo group were assigned to receive open-label FMT. RESULTS At week 12, 57.1% in the FMT group and 46.4% in the placebo group achieved the primary endpoint (p = 0.42). More patients receiving FMT than placebo had improvement in bloating (72% vs 30%; p = 0.005). In an open-label extension, 65.2% and 82.4% of patients achieved, respectively, the primary endpoint and improvement in bloating. Faecal microbiome of patients in the FMT group showed a reduction in bacteria like Ruminococcus gnavus and enrichment of bacteria such as Lawsonibacter at week 12, while no change in the placebo group. Functional analyses showed that the hydrogen sulphide-producing pathway decreased in patients who had FMT (p < 0.05) accompanied by a reduction in contributing bacteria. There were no serious adverse events related to FMT. CONCLUSION FMT performed twice at an interval of four weeks did not significantly reduce IBS-SSS score. However, more patients had improvement in abdominal bloating, which was associated with a reduction in hydrogen sulphide-producing bacteria. (ClinicalTrials.gov NCT03125564).
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Affiliation(s)
- Yuk Kam Yau
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Qi Su
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Zhilu Xu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Whitney Tang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jessica Y L Ching
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
| | - Joyce Wing Yan Mak
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chun Pan Cheung
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Matthew Fung
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Margaret Ip
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Paul Kay Sheung Chan
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Justin Che Yuen Wu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Francis Ka Leung Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Siew C Ng
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
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16
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Hu H, Zhu H, Yang H, Yao W, Zheng W. In vitro fermentation properties of magnesium hydride and related modulation effects on broiler cecal microbiome and metabolome. Front Microbiol 2023; 14:1175858. [PMID: 37621394 PMCID: PMC10445219 DOI: 10.3389/fmicb.2023.1175858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023] Open
Abstract
Magnesium hydride (MGH), a highly promising hydrogen-producing substance/additive for hydrogen production through its hydrolysis reaction, has the potential to enhance broiler production. However, before incorporating MGH as a hydrogen-producing additive in broiler feed, it is crucial to fully understand its impact on microbiota and metabolites. In vitro fermentation models provide a fast, reproducible, and direct assessment tool for microbiota metabolism and composition. This study aims to investigate the effects of MGH and coated-magnesium hydride (CMG) on fermentation characteristics, as well as the microbiota and metabolome in the culture of in vitro fermentation using cecal inocula from broilers. After 48 h of incubation, it was observed that the presence of MGH had a significant impact on various factors. Specifically, the content of N-NH3 decreased, while the total hydrogen gas and total SCFAs increased. Furthermore, the presence of MGH promoted the abundance of SCFA-producing bacteria such as Ruminococcus, Blautia, Coprobacillus, and Dysgonomonas. On the other hand, the presence of CMG led to an increase in the concentration of lactic acid, acetic acid, and valeric acid. Additionally, CMG affected the diversity of microbiota in the culture, resulting in an enrichment of the relative abundance of Firmicutes, as well as genera of Lactobacillus, Coprococcus, and Eubacterium. Conversely, the relative abundance of the phylum Proteobacteria and pathogenic bacteria Shigella decreased. Metabolome analysis revealed that MGH and CMG treatment caused significant changes in 21 co-regulated metabolites, primarily associated with lipid, amino acid, benzenoids, and organooxygen compounds. Importantly, joint correlation analysis revealed that MGH or CMG treatments had a direct impact on the microbiota, which in turn indirectly influenced metabolites in the culture. In summary, the results of this study suggested that both MGH and coated-MGH have similar yet distinct positive effects on the microbiota and metabolites of the broiler cecal in an in vitro fermentation model.
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Affiliation(s)
- Heng Hu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - He Zhu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Haiyan Yang
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, China
| | - Wen Yao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing, Jiangsu, China
| | - Weijiang Zheng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
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17
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Stummer N, Feichtinger RG, Weghuber D, Kofler B, Schneider AM. Role of Hydrogen Sulfide in Inflammatory Bowel Disease. Antioxidants (Basel) 2023; 12:1570. [PMID: 37627565 PMCID: PMC10452036 DOI: 10.3390/antiox12081570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Hydrogen sulfide (H2S), originally known as toxic gas, has now attracted attention as one of the gasotransmitters involved in many reactions in the human body. H2S has been assumed to play a role in the pathogenesis of many chronic diseases, of which the exact pathogenesis remains unknown. One of them is inflammatory bowel disease (IBD), a chronic intestinal disease subclassified as Crohn's disease (CD) and ulcerative colitis (UC). Any change in the amount of H2S seems to be linked to inflammation in this illness. These changes can be brought about by alterations in the microbiota, in the endogenous metabolism of H2S and in the diet. As both too little and too much H2S drive inflammation, a balanced level is needed for intestinal health. The aim of this review is to summarize the available literature published until June 2023 in order to provide an overview of the current knowledge of the connection between H2S and IBD.
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Affiliation(s)
- Nathalie Stummer
- Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (N.S.); (R.G.F.); (D.W.); (B.K.)
| | - René G. Feichtinger
- Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (N.S.); (R.G.F.); (D.W.); (B.K.)
| | - Daniel Weghuber
- Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (N.S.); (R.G.F.); (D.W.); (B.K.)
| | - Barbara Kofler
- Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (N.S.); (R.G.F.); (D.W.); (B.K.)
- Research Program for Receptor Biochemistry and Tumor Metabolism, Paracelsus Medical University (PMU), 5020 Salzburg, Austria
| | - Anna M. Schneider
- Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (N.S.); (R.G.F.); (D.W.); (B.K.)
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18
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Campbell A, Gdanetz K, Schmidt AW, Schmidt TM. H 2 generated by fermentation in the human gut microbiome influences metabolism and competitive fitness of gut butyrate producers. MICROBIOME 2023; 11:133. [PMID: 37322527 PMCID: PMC10268494 DOI: 10.1186/s40168-023-01565-3] [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: 10/11/2022] [Accepted: 05/03/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Hydrogen gas (H2) is a common product of carbohydrate fermentation in the human gut microbiome and its accumulation can modulate fermentation. Concentrations of colonic H2 vary between individuals, raising the possibility that H2 concentration may be an important factor differentiating individual microbiomes and their metabolites. Butyrate-producing bacteria (butyrogens) in the human gut usually produce some combination of butyrate, lactate, formate, acetate, and H2 in branched fermentation pathways to manage reducing power generated during the oxidation of glucose to acetate and carbon dioxide. We predicted that a high concentration of intestinal H2 would favor the production of butyrate, lactate, and formate by the butyrogens at the expense of acetate, H2, and CO2. Regulation of butyrate production in the human gut is of particular interest due to its role as a mediator of colonic health through anti-inflammatory and anti-carcinogenic properties. RESULTS For butyrogens that contained a hydrogenase, growth under a high H2 atmosphere or in the presence of the hydrogenase inhibitor CO stimulated production of organic fermentation products that accommodate reducing power generated during glycolysis, specifically butyrate, lactate, and formate. Also as expected, production of fermentation products in cultures of Faecalibacterium prausnitzii strain A2-165, which does not contain a hydrogenase, was unaffected by H2 or CO. In a synthetic gut microbial community, addition of the H2-consuming human gut methanogen Methanobrevibacter smithii decreased butyrate production alongside H2 concentration. Consistent with this observation, M. smithii metabolic activity in a large human cohort was associated with decreased fecal butyrate, but only during consumption of a resistant starch dietary supplement, suggesting the effect may be most prominent when H2 production in the gut is especially high. Addition of M. smithii to the synthetic communities also facilitated the growth of E. rectale, resulting in decreased relative competitive fitness of F. prausnitzii. CONCLUSIONS H2 is a regulator of fermentation in the human gut microbiome. In particular, high H2 concentration stimulates production of the anti-inflammatory metabolite butyrate. By consuming H2, gut methanogenesis can decrease butyrate production. These shifts in butyrate production may also impact the competitive fitness of butyrate producers in the gut microbiome. Video Abstract.
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Affiliation(s)
- Austin Campbell
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Kristi Gdanetz
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA
| | - Alexander W Schmidt
- Department of Internal Medicine, Division of Infectious Diseases, University of Michigan, MI, 48109, Ann Arbor, USA
| | - Thomas M Schmidt
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, 48109, USA.
- Department of Ecology & Evolutionary Biology, University of Michigan, MI, 48109, Ann Arbor, USA.
- Department of Internal Medicine, Division of Infectious Diseases, University of Michigan, MI, 48109, Ann Arbor, USA.
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Ivanova AY, Shirokov IV, Toshchakov SV, Kozlova AD, Obolenskaya ON, Mariasina SS, Ivlev VA, Gartseev IB, Medvedev OS. Effects of Coenzyme Q10 on the Biomarkers (Hydrogen, Methane, SCFA and TMA) and Composition of the Gut Microbiome in Rats. Pharmaceuticals (Basel) 2023; 16:ph16050686. [PMID: 37242469 DOI: 10.3390/ph16050686] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
The predominant route of administration of drugs with coenzyme Q10 (CoQ10) is administration per os. The bioavailability of CoQ10 is about 2-3%. Prolonged use of CoQ10 to achieve pharmacological effects contributes to the creation of elevated concentrations of CoQ10 in the intestinal lumen. CoQ10 can have an effect on the gut microbiota and the levels of biomarkers it produces. CoQ10 at a dose of 30 mg/kg/day was administered per os to Wistar rats for 21 days. The levels of gut microbiota biomarkers (hydrogen, methane, short-chain fatty acids (SCFA), and trimethylamine (TMA)) and taxonomic composition were measured twice: before the administration of CoQ10 and at the end of the experiment. Hydrogen and methane levels were measured using the fasting lactulose breath test, fecal and blood SCFA and fecal TMA concentrations were determined by NMR, and 16S sequencing was used to analyze the taxonomic composition. Administration of CoQ10 for 21 days resulted in a 1.83-fold (p = 0.02) increase in hydrogen concentration in the total air sample (exhaled air + flatus), a 63% (p = 0.02) increase in the total concentration of SCFA (acetate, propionate, butyrate) in feces, a 126% increase in butyrate (p = 0.04), a 6.56-fold (p = 0.03) decrease in TMA levels, a 2.4-fold increase in relative abundance of Ruminococcus and Lachnospiraceae AC 2044 group by 7.5 times and a 2.8-fold decrease in relative representation of Helicobacter. The mechanism of antioxidant effect of orally administered CoQ10 can include modification of the taxonomic composition of the gut microbiota and increased generation of molecular hydrogen, which is antioxidant by itself. The evoked increase in the level of butyric acid can be followed by protection of the gut barrier function.
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Affiliation(s)
- Anastasiia Yu Ivanova
- Faculty of Medicine, Lomonosov Moscow State University, Moscow 119991, Russia
- National Medical Research Center of Cardiology of the Ministry of Health of the Russian Federation, Laboratory of Experimental Pharmacology, Moscow 121552, Russia
| | - Ivan V Shirokov
- Medical and Technical Information Technologies, Bauman Moscow State Technical University, Moscow 105005, Russia
| | - Stepan V Toshchakov
- Center for Genome Research, National Research Center "Kurchatov Institute", Moscow 123098, Russia
| | - Aleksandra D Kozlova
- Center for Genome Research, National Research Center "Kurchatov Institute", Moscow 123098, Russia
| | - Olga N Obolenskaya
- Faculty of Medicine, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Sofia S Mariasina
- Faculty of Medicine, Lomonosov Moscow State University, Moscow 119991, Russia
- Institute of Functional Genomics, Moscow State University, Moscow 119991, Russia
| | - Vasily A Ivlev
- Pharmacy Resource Center, Peoples Friendship University of Russia (RUDN University), Moscow 117198, Russia
| | - Ilya B Gartseev
- The Institute of Artificial Intelligence of Russian Technological University MIREA, Moscow 119454, Russia
| | - Oleg S Medvedev
- Faculty of Medicine, Lomonosov Moscow State University, Moscow 119991, Russia
- National Medical Research Center of Cardiology of the Ministry of Health of the Russian Federation, Laboratory of Experimental Pharmacology, Moscow 121552, Russia
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20
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García Mendez D, Sanabria J, Wist J, Holmes E. Effect of Operational Parameters on the Cultivation of the Gut Microbiome in Continuous Bioreactors Inoculated with Feces: A Systematic Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6213-6225. [PMID: 37070710 PMCID: PMC10143624 DOI: 10.1021/acs.jafc.2c08146] [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: 11/20/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 05/03/2023]
Abstract
Since the early 1980s, multiple researchers have contributed to the development of in vitro models of the human gastrointestinal system for the mechanistic interrogation of the gut microbiome ecology. Using a bioreactor for simulating all the features and conditions of the gastrointestinal system is a massive challenge. Some conditions, such as temperature and pH, are readily controlled, but a more challenging feature to simulate is that both may vary in different regions of the gastrointestinal tract. Promising solutions have been developed for simulating other functionalities, such as dialysis capabilities, peristaltic movements, and biofilm growth. This research field is under constant development, and further efforts are needed to drive these models closer to in vivo conditions, thereby increasing their usefulness for studying the gut microbiome impact on human health. Therefore, understanding the influence of key operational parameters is fundamental for the refinement of the current bioreactors and for guiding the development of more complex models. In this review, we performed a systematic search for operational parameters in 229 papers that used continuous bioreactors seeded with human feces. Despite the reporting of operational parameters for the various bioreactor models being variable, as a result of a lack of standardization, the impact of specific operational parameters on gut microbial ecology is discussed, highlighting the advantages and limitations of the current bioreactor systems.
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Affiliation(s)
- David
Felipe García Mendez
- Australian
National Phenome Centre and Computational and Systems Medicine, Health
Futures Institute, Murdoch University, Harry Perkins Building, Perth, Australia WA6150
| | - Janeth Sanabria
- Australian
National Phenome Centre and Computational and Systems Medicine, Health
Futures Institute, Murdoch University, Harry Perkins Building, Perth, Australia WA6150
- Environmental
Microbiology and Biotechnology Laboratory, Engineering School of Environmental
& Natural Resources, Engineering Faculty, Universidad del Valle—Sede Meléndez, Cali, Colombia 76001
| | - Julien Wist
- Australian
National Phenome Centre and Computational and Systems Medicine, Health
Futures Institute, Murdoch University, Harry Perkins Building, Perth, Australia WA6150
- Chemistry
Department, Universidad del Valle, 76001, Cali, Colombia
| | - Elaine Holmes
- Australian
National Phenome Centre and Computational and Systems Medicine, Health
Futures Institute, Murdoch University, Harry Perkins Building, Perth, Australia WA6150
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21
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Zhang C, Lian Z, Xu B, Shen Q, Bao M, Huang Z, Jiang H, Li W. Gut Microbiome Variation Along A Lifestyle Gradient Reveals Threats Faced by Asian Elephants. GENOMICS, PROTEOMICS & BIOINFORMATICS 2023:S1672-0229(23)00069-4. [PMID: 37088195 PMCID: PMC10372918 DOI: 10.1016/j.gpb.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 03/23/2023] [Accepted: 04/17/2023] [Indexed: 04/25/2023]
Abstract
The gut microbiome is closely related to host nutrition and health. However, the relationships between gut microorganisms and host lifestyle are not well characterized. In the absence of confounding geographic variation, we defined clear patterns of variation in the gut microbiomes of Asian elephants (AEs) in the Wild Elephant Valley, Xishuangbanna, China, along a lifestyle gradient (fully captive, semicaptive, semiwild, and purely wild). A phylogenetic analysis using the 16S rRNA gene sequences highlighted that the microbial diversity decreased as the degree of captivity increased. Furthermore, the results showed that the bacterial taxon WCHB1-41_c was significantly affected by lifestyle gradient variations. Quantitative real-time PCR revealed a paucity of genes related to butyrate production in the microbiome of AEs with a pure wild lifestyle, which may be due to the increased environmental unfavorable factors. Overall, these results demonstrate the distinct gut microbiome characteristics among AEs with a gradient of lifestyles and provide a basis for designing strategies to improve the well-being or conservation of this important animal species.
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Affiliation(s)
- Chengbo Zhang
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, China
| | - Zhenghan Lian
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Bo Xu
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, China
| | - Qingzhong Shen
- Xishuangbanna National Nature Reserve Management and Protection Bureau, Jinghong 666100, China
| | - Mingwei Bao
- Asian Elephant Provenance Breeding and Rescue Center in Xishuangbanna, Jinghong 666100, China
| | - Zunxi Huang
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, China.
| | - Hongchen Jiang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China.
| | - Wenjun Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
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22
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Feng J, Wang J, Bu T, Ge Z, Yang K, Sun P, Wu L, Cai M. Structural, in vitro digestion, and fermentation characteristics of lotus leaf flavonoids. Food Chem 2023; 406:135007. [PMID: 36473390 DOI: 10.1016/j.foodchem.2022.135007] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 07/27/2022] [Accepted: 11/16/2022] [Indexed: 11/20/2022]
Abstract
Bioaccessibility and bioactivity of flavonoids in lotus leaves are related to their characteristics in gastrointestinal digestion and colonic fermentation. The aim of this study is to investigate the stability of lotus leaf flavonoids (LLF) in simulated gastrointestinal digestion, and its modulation on gut microbiota in vitro fermentation. Results showed that LLF mainly consisted of quercetin-3-O-galactoside, quercetin-3-O-glucuronide, quercetin-3-O-glucoside, and kaempferol-3-O-glucoside. These flavonoids kept stability with only a small fraction degraded in simulated gastric and intestinal fluids. In vitro fermentation, LLF stimulated the growth of Actinobacteria and Firmicutes, inhibited the growth of Proteobacteria, and induced the production of fermentation gases and short-chain fatty acids. Interestingly, supplementation of soluble starch significantly improved the utilization of LLF by the intestinal flora. These results revealed that LLF shaped a unique biological web with Lactobacillus and Bifidobacterium spp. as the core of the biological network, which would be more beneficial to gut health.
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Affiliation(s)
- Jicai Feng
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Jian Wang
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Tingting Bu
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Zhiwei Ge
- Analysis Center of Agrobiology and Environmental Sciences, Zhejiang University, People's Republic of China
| | - Kai Yang
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Peilong Sun
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China
| | - Liehong Wu
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People's Republic of China
| | - Ming Cai
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, People's Republic of China.
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23
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Yao Q, Yu Z, Meng Q, Chen J, Liu Y, Song W, Ren X, Zhou J, Chen X. The Role of Small Intestinal Bacterial Overgrowth in Obesity and Its Related Diseases. Biochem Pharmacol 2023; 212:115546. [PMID: 37044299 DOI: 10.1016/j.bcp.2023.115546] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023]
Abstract
Obesity has become a major public health problem worldwide and its occurrence is increasing globally. Obesity has also been shown to be involved in the occurrence and development of many diseases and pathological conditions, such as nonalcoholic fatty liver disease (NAFLD), type 2 diabetes mellitus (T2DM), insulin resistance (IR). In recent years, gut microbiota has received extensive attention as an important regulatory part involved in host diseases and health status. A growing body of evidence suggests that gut microbiota dysbiosis has a significant adverse effect on the host. Small intestinal bacterial overgrowth (SIBO), a type of intestinal microbial dysbiosis, has been gradually revealed to be associated with obesity and its related diseases. The presence of SIBO may lead to the destruction of intestinal barrier integrity, increased intestinal permeability, increased endotoxin levels, activation of inflammatory responses, and translocation of bacteria from the colon to the small intestine. However, the causal relationship between SIBO and obesity and the specific mechanisms have not been well elucidated. This review discusses the cross-talk between SIBO and obesity and its related diseases, and expounds its potential mechanisms and interventions, which may help to discover new therapeutic targets for obesity and its related diseases and develop treatment options.
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Affiliation(s)
- Qinyan Yao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Zihan Yu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Qingguo Meng
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Jihua Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Yaxin Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Wenxuan Song
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Xiangfeng Ren
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Jinjie Zhou
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Xin Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China.
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24
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Yang S, Hao S, Ye H, Zhang X. Global research on the crosstalk between intestinal microbiome and colorectal cancer: A visualization analysis. Front Cell Infect Microbiol 2023; 13:1083987. [PMID: 37009513 PMCID: PMC10050574 DOI: 10.3389/fcimb.2023.1083987] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 03/03/2023] [Indexed: 03/17/2023] Open
Abstract
BackgroundIncreasing evidence has shown that the intestinal microbiome (IM) is highly linked to colorectal cancer (CRC). To investigate scientific output, identify highly cited papers, and explore research hotspots and trends in the field of IM/CRC, we conducted a bibliometric and visualized analysis.MethodsA bibliographic search regarding IM/CRC research (2012-2021) was implemented on October 17, 2022. The terms attached to IM and CRC were searched for in the titles (TI), abstracts (AB), and author keywords (AK). The main information was extracted from the Web of Science Core Collection (WoSCC). Biblioshiny from R packages and VOSviewer were used for data visualization.ResultsA total of 1725 papers related to IM/CRC were retrieved. Publications on IM/CRC have grown rapidly from 2012 to 2021. China and the United States were in the leading position for publications in this field and made the most significant contributions to IM/CRC research. Shanghai Jiao Tong University and Harvard University were the most productive institutions. The high-yield authors were Yu Jun and Fang Jing Yuan. The International Journal of Molecular Sciences published the most papers, whereas Gut had the most citations. Historical citation analysis showed the evolution of IM/CRC research. Current status and hotspots were highlighted using keyword cluster analysis. The hot topics include the effect of IM on tumorigenesis, the effect of IM on CRC treatment, the role of IM in CRC screening, the mechanisms of IM involvement in CRC, and IM modulation for CRC management. Some topics, such as chemotherapy, immunotherapy, Fusobacterium nucleatum and short-chain fatty acids could be the focus of IM/CRC research in the coming years.ConclusionThis research evaluated the global scientific output of IM/CRC research and its quantitative features, identified some significant papers, and gathered information on the status and trends of IM/CRC research, which may shape future paths for academics and practitioners.
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Affiliation(s)
- Shanshan Yang
- Department of Integrated Traditional Chinese and Western Medicine, Peking University First Hospital, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Shaodong Hao
- Spleen-Stomach Department, Fangshan Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Ye
- Department of Integrated Traditional Chinese and Western Medicine, Peking University First Hospital, Beijing, China
- *Correspondence: Xuezhi Zhang, ; Hui Ye,
| | - Xuezhi Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Peking University First Hospital, Beijing, China
- *Correspondence: Xuezhi Zhang, ; Hui Ye,
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25
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Bonvegna S, Cilia R. Disease mechanisms as subtypes: Microbiome. HANDBOOK OF CLINICAL NEUROLOGY 2023; 193:107-131. [PMID: 36803806 DOI: 10.1016/b978-0-323-85555-6.00006-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Abnormalities in gut microbiota have been suggested to be involved in the pathophysiology and progression of Parkinson's disease (PD). Gastrointestinal nonmotor symptoms often precede the onset of motor features in PD, suggesting a role for gut dysbiosis in neuroinflammation and α-synuclein (α-syn) aggregation. In the first part of this chapter, we analyze critical features of healthy gut microbiota and factors (environmental and genetic) that modify its composition. In the second part, we focus on the mechanisms underlying the gut dysbiosis and how it alters anatomically and functionally the mucosal barrier, triggering neuroinflammation and subsequently α-syn aggregation. In the third part, we describe the most common alterations in the gut microbiota of PD patients, dividing the gastrointestinal system in higher and lower tract to examine the association between microbiota abnormalities and clinical features. In the final section, we report on current and future therapeutic approaches to gut dysbiosis aiming to either reduce the risk for PD, modify the disease course, or improve the pharmacokinetic profile of dopaminergic therapies. We also suggest that further studies will be needed to clarify the role of the microbiome in PD subtyping and of pharmacological and nonpharmacological interventions in modifying specific microbiota profiles in individualizing disease-modifying treatments in PD.
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Affiliation(s)
- Salvatore Bonvegna
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Department of Clinical Neurosciences, Parkinson and Movement Disorders Unit, Milan, Italy
| | - Roberto Cilia
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Department of Clinical Neurosciences, Parkinson and Movement Disorders Unit, Milan, Italy.
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26
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Wang Y, Wang M, Xie B, Wen D, Li W, Zhou M, Wang X, Lu Y, Cong B, Ni Z, Ma C. Effects of molecular hydrogen intervention on the gut microbiome in methamphetamine abusers with mental disorder. Brain Res Bull 2023; 193:47-58. [PMID: 36516898 DOI: 10.1016/j.brainresbull.2022.12.003] [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: 10/25/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/14/2022]
Abstract
Methamphetamine (METH) is a potent and highly addictive psychostimulant and one of the most widely used illicit drugs, the abuse of which has become a severe public health problem worldwide. A growing amount of evidence has indicated potential connections between gut microbiota and mental disorders induced by METH and associations with neural and metabolic pathways. The present study aimed to explore the relationship between fecal microbial alterations and neuropsychiatric diseases in METH addictions. Thus, mental disorders and gut microbial alterations were analyzed by self-rating depression (SDS) and anxiety (SAS) scales and 16 S rRNA gene sequencing, respectively. Our results showed that increased SDS and SAS indices and decreased alpha diversity indicated more serious mental disorders and lower bacterial diversity in METH users than in the age-matched healthy control group. The gut microbial composition in female METH users was also significantly altered, with reductions in hydrogen-producing bacteria, including Bacteroides and Roseburia. Molecular hydrogen (H2) is spontaneously produced by intestinal bacteria in the process of anaerobic metabolism, which is the main pathway for H2 production in vivo. Numerous studies have shown that hydrogen intervention can significantly improve neuropsychiatric diseases, including Alzheimer's disease and Parkinson's disease. Our results showed that hydrogen intervention, including drinking and inhaling, significantly alleviated mental disorders induced by METH abuse, and the inhalation of hydrogen also altered gut microbiota profiles in the METH abusers. These results suggest that hydrogen intervention has potential therapeutic applicability in the treatment of mental disorders in METH abusers.
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Affiliation(s)
- Yong Wang
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China
| | - Mengmeng Wang
- Affiliated Hospital of Hebei University, College of Clinical Medicine, Hebei University, Collaborative Innovation Center of Tumor Microecological Metabolism Regulation, Baoding, Hebei Province 071000, PR China
| | - Bing Xie
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China
| | - Di Wen
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China
| | - Wenbo Li
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China
| | - Meiqi Zhou
- College of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, Hebei Province 050017, PR China
| | - Xintao Wang
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China
| | - Yun Lu
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China
| | - Bin Cong
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China
| | - Zhiyu Ni
- Affiliated Hospital of Hebei University, College of Clinical Medicine, Hebei University, Collaborative Innovation Center of Tumor Microecological Metabolism Regulation, Baoding, Hebei Province 071000, PR China.
| | - Chunling Ma
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province 050017, PR China.
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27
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Intestinal gas production by the gut microbiota: A review. J Funct Foods 2023. [DOI: 10.1016/j.jff.2022.105367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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28
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Holscher HD, Chumpitazi BP, Dahl WJ, Fahey GC, Liska DJ, Slavin JL, Verbeke K. Perspective: Assessing Tolerance to Nondigestible Carbohydrate Consumption. Adv Nutr 2022; 13:2084-2097. [PMID: 36041178 PMCID: PMC9776727 DOI: 10.1093/advances/nmac091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/02/2022] [Accepted: 08/25/2022] [Indexed: 01/28/2023] Open
Abstract
Human intestinal enzymes do not hydrolyze nondigestible carbohydrates (NDCs), and thus, they are not digested and absorbed in the small intestine. Instead, NDCs are partially to completely fermented by the intestinal microbiota. Select NDCs are associated with health benefits such as laxation and lowering of blood cholesterol and glucose. NDCs provide functional attributes to processed foods, including sugar or fat replacers, thickening agents, and bulking agents. Additionally, NDCs are incorporated into processed foods to increase their fiber content. Although consumption of NDCs can benefit health and contribute functional characteristics to foods, they can cause gastrointestinal symptoms, such as flatulence and bloating. As gastrointestinal symptoms negatively affect consumer well-being and their acceptance of foods containing NDC ingredients, it is crucial to consider tolerance when designing food products and testing their physiological health benefits in clinical trials. This perspective provides recommendations for the approach to assess gastrointestinal tolerance to NDCs, with a focus on study design, population criteria, intervention, comparator, and outcome. Special issues related to studies in children and implications for stakeholders are also discussed. It is recommended that the evaluation of gastrointestinal tolerance to NDCs be conducted in randomized, blinded, controlled crossover studies using standard gastrointestinal questionnaires, with attention to study participant background diets, health status, lifestyle, and medications.
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Affiliation(s)
| | - Bruno P Chumpitazi
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA; Children's Nutrition Research Center, United States Department of Agriculture, Houston, TX, USA
| | - Wendy J Dahl
- Department of Food Science and Human Nutrition, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL, USA
| | - George C Fahey
- Department of Animal Sciences, University of Illinois, Urbana, IL USA
| | | | - Joanne L Slavin
- Department of Food Science and Nutrition, University of Minnesota, Twin Cities, MN USA
| | - Kristin Verbeke
- Translational Research in Gastrointestinal Disorders, KU Leuven, Targid, Leuven, Belgium; and Leuven Food Science and Nutrition Research Centre, Leuven, Belgium
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Wang T, van Dijk L, Rijnaarts I, Hermes GDA, de Roos NM, Witteman BJM, de Wit NJW, Govers C, Smidt H, Zoetendal EG. Methanogen Levels Are Significantly Associated with Fecal Microbiota Composition and Alpha Diversity in Healthy Adults and Irritable Bowel Syndrome Patients. Microbiol Spectr 2022; 10:e0165322. [PMID: 36321894 PMCID: PMC9769613 DOI: 10.1128/spectrum.01653-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/14/2022] [Indexed: 11/07/2022] Open
Abstract
Hydrogenotrophic microbes, primarily including the three functional groups methanogens, sulfate-reducing bacteria, and reductive acetogens, use hydrogen as an energy source and play an important role in maintaining the hydrogen balance in gut ecosystems. A distorted hydrogen balance has been associated with irritable bowel syndrome (IBS). However, the role of hydrogenotrophic microbes in overall microbiota composition and function remains largely unknown. This study aims to assess the distribution and stability of hydrogenotrophic functional groups in healthy adults (HAs) and IBS patients and their association with overall microbiota composition and IBS symptoms. A two-time-point study with 4 weeks in between was performed with 27 HAs and 55 IBS patients included. Our observations revealed that methanogens showed a bimodal distribution across samples. A high-level methanogen microbiota was consistently associated with higher alpha diversity, and its composition was significantly different from that of individuals with a low-level methanogen microbiota. In general, these associations were more pronounced in IBS patients than in HAs. The differences in the copy numbers of genes indicative of total bacteria and acetogens between HAs and IBS patients and their correlations with IBS symptom severity, anxiety, depression, and quality of life (QoL) were sampling time dependent. Hydrogenotrophic functional groups did not show negative abundance correlations with each other in HAs and IBS patients. These findings suggest that methanogen levels in the gut have a pronounced association with microbiota alpha diversity and composition, and the interactions between hydrogenotrophic functional groups are complex in gut ecosystems. IMPORTANCE Hydrogenotrophic microbes play an essential role in the disposal of hydrogen and the maintenance of the hydrogen balance in gut ecosystems. Their abundances vary between individuals and have been reported to be associated with human gut disorders such as irritable bowel disease. This study confirms that methanogen levels show a bimodal distribution. Moreover, a high-level methanogen microbiota was associated with higher alpha diversity, and its composition was different from that of individuals with a low-level methanogen microbiota. These associations are more pronounced in IBS patients than in healthy subjects. In addition, associations between hydrogenotrophic microbes and IBS symptom scores vary over time, which argues for the use of longitudinal study designs. Last but not least, this study suggests that the different hydrogenotrophic microbes coexist with each other and do not necessarily compete for hydrogen in the gut. The findings in this study highlight the impact of methanogens on overall microbiota composition and function.
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Affiliation(s)
- Taojun Wang
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Leander van Dijk
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Iris Rijnaarts
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, the Netherlands
- Wageningen Food and Biobased Research, Wageningen University and Research, Wageningen, the Netherlands
| | - Gerben D. A. Hermes
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Nicole M. de Roos
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, the Netherlands
| | - Ben J. M. Witteman
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, the Netherlands
- Department of Gastroenterology and Hepatology, Hospital Gelderse Vallei, Ede, the Netherlands
| | - Nicole J. W. de Wit
- Wageningen Food and Biobased Research, Wageningen University and Research, Wageningen, the Netherlands
| | - Coen Govers
- Wageningen Food and Biobased Research, Wageningen University and Research, Wageningen, the Netherlands
- Cell Biology and Immunology, Wageningen University and Research, Wageningen, the Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Erwin G. Zoetendal
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
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30
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Emerging insights between gut microbiome dysbiosis and Parkinson's disease: Pathogenic and clinical relevance. Ageing Res Rev 2022; 82:101759. [PMID: 36243356 DOI: 10.1016/j.arr.2022.101759] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/28/2022] [Accepted: 10/09/2022] [Indexed: 01/31/2023]
Abstract
Parkinson's disease (PD) is a complicated neurodegenerative disease, of which gastrointestinal disturbance appears prior to motor symptoms. Numerous studies have shed light on the roles of gastrointestinal tract and its neural connection to brain in PD pathology. In the past decades, the fields of microbiology and neuroscience have become ever more entwined. The emergence of gut microbiome has been considered as one of the key regulators of gut-brain function. With the advent of multi-omics sequencing techniques, gut microbiome of PD patients has been shown unique characteristics. The resident gut microbiota can exert considerable effects in PD and there are suggestions of a link between gut microbiome dysbiosis and PD progression. In this review, we summarize the latest progresses of gut microbiome dysbiosis in PD pathogenesis, further highlight the clinical relevance of gut microbiota and its metabolites in both the non-motor and motor symptoms of PD. Furthermore, we draw attention to the complex interplay between gut microbiota and PD drugs, with the purpose of improving drug efficacy and prescription accordingly. Further studies at specific strain level and longitudinal prospective clinical trials using optimized methods are still needed for the development of diagnostic markers and novel therapeutic regimens for PD.
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Oza PP, Kashfi K. Utility of NO and H 2S donating platforms in managing COVID-19: Rationale and promise. Nitric Oxide 2022; 128:72-102. [PMID: 36029975 PMCID: PMC9398942 DOI: 10.1016/j.niox.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/01/2022] [Accepted: 08/10/2022] [Indexed: 01/08/2023]
Abstract
Viral infections are a continuing global burden on the human population, underscored by the ramifications of the COVID-19 pandemic. Current treatment options and supportive therapies for many viral infections are relatively limited, indicating a need for alternative therapeutic approaches. Virus-induced damage occurs through direct infection of host cells and inflammation-related changes. Severe cases of certain viral infections, including COVID-19, can lead to a hyperinflammatory response termed cytokine storm, resulting in extensive endothelial damage, thrombosis, respiratory failure, and death. Therapies targeting these complications are crucial in addition to antiviral therapies. Nitric oxide and hydrogen sulfide are two endogenous gasotransmitters that have emerged as key signaling molecules with a broad range of antiviral actions in addition to having anti-inflammatory properties and protective functions in the vasculature and respiratory system. The enhancement of endogenous nitric oxide and hydrogen sulfide levels thus holds promise for managing both early-stage and later-stage viral infections, including SARS-CoV-2. Using SARS-CoV-2 as a model for similar viral infections, here we explore the current evidence regarding nitric oxide and hydrogen sulfide's use to limit viral infection, resolve inflammation, and reduce vascular and pulmonary damage.
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Affiliation(s)
- Palak P Oza
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY, 10031, USA
| | - Khosrow Kashfi
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY, 10031, USA; Graduate Program in Biology, City University of New York Graduate Center, New York, 10091, USA.
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32
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Young W, Maclean P, Dunstan K, Ryan L, Peters J, Armstrong K, Anderson R, Dewhurst H, van Gendt M, Dilger RN, Dekker J, Haggarty N, Roy N. Lacticaseibacillus rhamnosus HN001 alters the microbiota composition in the cecum but not the feces in a piglet model. Front Nutr 2022; 9:1002369. [PMID: 36386940 PMCID: PMC9650270 DOI: 10.3389/fnut.2022.1002369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/28/2022] [Indexed: 12/03/2022] Open
Abstract
The probiotic Lacticaseibacillus rhamnosus strain HN001 has been shown to have several beneficial health effects for both pediatric and maternal groups, including reduced risk of eczema in infants and gestational diabetes and postnatal depression in mothers. While L. rhamnosus HN001 appears to modify immune and gut barrier biomarkers, its mode of action remains to be fully elucidated. To gain insights into the role of HN001 on the infant microbiome, the impacts of L. rhamnosus HN001 supplementation was studied in 10-day old male piglets that were fed either infant formula, or infant formula with L. rhamnosus HN001 at a low (1.3 × 105 CFU/ml) or high dose (7.9 × 106 CFU/ml) daily for 24 days. The cecal and fecal microbial communities were assessed by shotgun metagenome sequencing and host gene expression in the cecum and colon tissue was assessed by RNA-seq. Piglet fecal samples showed only modest differences between controls and those receiving dietary L. rhamnosus HN001. However, striking differences between the three groups were observed for cecal samples. While total lactobacilli were significantly increased only in the high dose L. rhamnosus HN001 group, both high and low dose groups showed an up to twofold reduction across the Firmicutes phylum and up to fourfold increase in Prevotella compared to controls. Methanobrevibacter was also decreased in HN001 fed piglets. Microbial genes involved in carbohydrate and vitamin metabolism were among those that differed in relative abundance between those with and without L. rhamnosus HN001. Changes in the cecal microbiome were accompanied by increased expression of tight junction pathway genes and decreased autophagy pathway genes in the cecal tissue of piglets fed the higher dose of L. rhamnosus HN001. Our findings showed supplementation with L. rhamnosus HN001 caused substantial changes in the cecal microbiome with likely consequences for key microbial metabolic pathways. Host gene expression changes in the cecum support previous research showing L. rhamnosus HN001 beneficially impacts intestinal barrier function. We show that fecal samples may not adequately reflect microbiome composition higher in the gastrointestinal tract, with the implication that effects of probiotic consumption may be missed by examining only the fecal microbiome.
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Affiliation(s)
- Wayne Young
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
- Riddet Institute, Massey University, Palmerston North, New Zealand
- *Correspondence: Wayne Young,
| | - Paul Maclean
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
| | - Kelly Dunstan
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
| | - Leigh Ryan
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
| | - Jason Peters
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
| | - Kelly Armstrong
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
| | - Rachel Anderson
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
| | - Hilary Dewhurst
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
| | | | - Ryan N. Dilger
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | - James Dekker
- Fonterra Research and Development Centre, Palmerston North, New Zealand
| | - Neill Haggarty
- Fonterra Research and Development Centre, Palmerston North, New Zealand
| | - Nicole Roy
- AgResearch, Te Ohu Rangahau Kai, Palmerston North, New Zealand
- Riddet Institute, Massey University, Palmerston North, New Zealand
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33
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Xu Z, Jiang N, Xiao Y, Yuan K, Wang Z. The role of gut microbiota in liver regeneration. Front Immunol 2022; 13:1003376. [PMID: 36389782 PMCID: PMC9647006 DOI: 10.3389/fimmu.2022.1003376] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/12/2022] [Indexed: 12/02/2022] Open
Abstract
The liver has unique regeneration potential, which ensures the continuous dependence of the human body on hepatic functions. As the composition and function of gut microbiota has been gradually elucidated, the vital role of gut microbiota in liver regeneration through gut-liver axis has recently been accepted. In the process of liver regeneration, gut microbiota composition is changed. Moreover, gut microbiota can contribute to the regulation of the liver immune microenvironment, thereby modulating the release of inflammatory factors including IL-6, TNF-α, HGF, IFN-γ and TGF-β, which involve in different phases of liver regeneration. And previous research have demonstrated that through enterohepatic circulation, bile acids (BAs), lipopolysaccharide, short-chain fatty acids and other metabolites of gut microbiota associate with liver and may promote liver regeneration through various pathways. In this perspective, by summarizing gut microbiota-derived signaling pathways that promote liver regeneration, we unveil the role of gut microbiota in liver regeneration and provide feasible strategies to promote liver regeneration by altering gut microbiota composition.
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Affiliation(s)
- Zhe Xu
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- Laboratory of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Nan Jiang
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- Laboratory of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yuanyuan Xiao
- Department of Obstetrics and Gynecology, West China Second Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
- *Correspondence: Zhen Wang, ; Kefei Yuan, ; Yuanyuan Xiao,
| | - Kefei Yuan
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- Laboratory of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- *Correspondence: Zhen Wang, ; Kefei Yuan, ; Yuanyuan Xiao,
| | - Zhen Wang
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- Laboratory of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- *Correspondence: Zhen Wang, ; Kefei Yuan, ; Yuanyuan Xiao,
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34
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Romanov VA, Karasev IA, Klimenko NS, Koshechkin SI, Tyakht AV, Malikhova OA. Luminal and Tumor-Associated Gut Microbiome Features Linked to Precancerous Lesions Malignancy Risk: A Compositional Approach. Cancers (Basel) 2022; 14:5207. [PMID: 36358626 PMCID: PMC9653741 DOI: 10.3390/cancers14215207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 08/30/2023] Open
Abstract
Colorectal cancer is the third most commonly diagnosed cancer worldwide. Human gut microbiome plays important roles in protecting against it, as well as contributing to its onset and progression. Identification of specific bacterial taxa associated with early stages of colorectal cancer may help develop effective microbiome-based diagnostics. For precancerous lesions, links of their characteristics to luminal and tumor-associated microbiome composition are to be elucidated. Paired stool and tumor brush biopsy samples were collected from 50 patients with precancerous lesions and early forms of colon cancer; their microbial communities were profiled using high-throughput 16S rRNA sequencing. We showed that the microbiome differences between stool and biopsy samples can be to a high extent computationally corrected. Compositionality-aware statistical analysis of microbiome composition revealed its associations with the number of lesions, lesion type, location and malignization pathway. A major determinant of precancerous lesions malignancy risk-the number of lesions-was positively associated with the abundance of H2S-producing taxa. Our results contribute to the basis for developing early non-invasive colorectal cancer diagnostics via identifying microorganisms likely participating in early stages of cancer pathogenesis.
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Affiliation(s)
- Vladimir A. Romanov
- Atlas Biomed Group—Knomx LLC, Tintagel House, 92 Albert Embankment, Lambeth, London SE1 7TY, UK
| | - Ivan A. Karasev
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, 24 Kashirskoe Shosse, 115478 Moscow, Russia
| | - Natalia S. Klimenko
- Atlas Biomed Group—Knomx LLC, Tintagel House, 92 Albert Embankment, Lambeth, London SE1 7TY, UK
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology Russian Academy of Sciences, 34/5 Vavilova Str., 119334 Moscow, Russia
| | - Stanislav I. Koshechkin
- Atlas Biomed Group—Knomx LLC, Tintagel House, 92 Albert Embankment, Lambeth, London SE1 7TY, UK
| | - Alexander V. Tyakht
- Atlas Biomed Group—Knomx LLC, Tintagel House, 92 Albert Embankment, Lambeth, London SE1 7TY, UK
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology Russian Academy of Sciences, 34/5 Vavilova Str., 119334 Moscow, Russia
| | - Olga A. Malikhova
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, 24 Kashirskoe Shosse, 115478 Moscow, Russia
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35
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Li ZT, Wang JW, Hu XH, Zhu L, Jiang Y, Gao MJ, Zhan XB. The effects of high-fat foods on gut microbiota and small molecule intestinal gases: release kinetics and distribution in vitro colon model. Heliyon 2022; 8:e10911. [PMID: 36247129 PMCID: PMC9561747 DOI: 10.1016/j.heliyon.2022.e10911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/20/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022] Open
Abstract
Profiling intestinal gases and their responses to dietary changes can reveal the products and functions of the gut microbiota and their influence on human health. High-fat foods (HFF) can alter the gut microbiota and its metabolites, posing a potential health risk. However, little is known about the effects of HFF on intestinal gas distribution. Therefore, in this study, we used human fecal microorganisms as strains, an in vitro three-chamber colon model and an intestinal gas array sensor as tools. We performed in vitro fermentation using HFF as the fermentation substrate to reveal the effects of HFF on the kinetics of intestinal gas production and changes in the gut microbiota and its metabolites. We found that dietary fatty acids stimulated the production of H2S and volatile organic compounds in the colon, promoted Firmicutes abundance, and decreased Bacteroidetes abundance. These results highlight the potential role of HFF in altering the gut microbiota and intestinal gas, which can lead to health hazards. High-fat foods (HFF) can alter the gut microbiota and its metabolites. HFF stimulate H2S and volatile organic compound production in the colon. Specific intestinal gases can be used as disease markers.
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Affiliation(s)
- Zhi-tao Li
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Jia-wei Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Xing-hai Hu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Li Zhu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Yun Jiang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Min-jie Gao
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China,Corresponding author.
| | - Xiao-bei Zhan
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China,Corresponding author.
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36
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Zhang D, Liu J, Cheng H, Wang H, Tan Y, Feng W, Peng C. Interactions between polysaccharides and gut microbiota: A metabolomic and microbial review. Food Res Int 2022; 160:111653. [DOI: 10.1016/j.foodres.2022.111653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/17/2022]
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37
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Cao Y, Tian B, Zhang Z, Yang K, Cai M, Hu W, Guo Y, Xia Q, Wu W. Positive effects of dietary fiber from sweet potato [Ipomoea batatas (L.) Lam.] peels by different extraction methods on human fecal microbiota in vitro fermentation. Front Nutr 2022; 9:986667. [PMID: 36159459 PMCID: PMC9490365 DOI: 10.3389/fnut.2022.986667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
The purpose of this study was to compare the effects of sweet potato peels dietary fiber obtained by different extraction methods on intestinal health. Specifically, four different dietary fibers were extracted by hot water, microwave, ultrasonic and subcritical water methods. And the prebiotics effects of sweet potato peels dietary fibers were explored in an in vitro fermentation model, by determining intestinal gas content, short-chain fatty acid content, pH, ammonia content and the gut microbiota composition. The results showed that dietary fiber obtained by four different extraction methods could be utilized by GM and improve human health by increasing the abundance of beneficial bacteria (e.g., Bifidobacterium, Faecalibacterium, and Prevotella) and reducing the abundance of harmful bacteria (e.g., Proteobacteria, Romboutsia and Dorea), enhancing the relative abundance of SCFA-producing bacteria, promoting the production of short-chain fatty acids, reducing intestinal pH from 6.89 to 4.63 and ammonia. Among them, dietary fiber extracted by ultrasound is better than the other three extraction methods. This study suggests that all the four different extraction methods are available for sweet potato peels dietary fiber, and the extracted dietary fiber could be served as potential functional foods with great development value. In addition, it is beneficial to reduce the environmental pollution of sweet potato peels and improve the high-value processing and utilization of sweet potato by-products.
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Affiliation(s)
- Yan Cao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Baoming Tian
- Food Natural Product and Nutritional Health Research Center, College of Food Science and Technology, Zhejiang University of Technology, Huzhou, China
| | - Zhiguo Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Kai Yang
- Food Natural Product and Nutritional Health Research Center, College of Food Science and Technology, Zhejiang University of Technology, Huzhou, China
| | - Ming Cai
- Food Natural Product and Nutritional Health Research Center, College of Food Science and Technology, Zhejiang University of Technology, Huzhou, China
| | - Weiwei Hu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yang Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Qile Xia
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- *Correspondence: Qile Xia
| | - Weicheng Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- Weicheng Wu
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Oku T, Nakamura S, Takeshita T, Hashiguchi M, Tanabe K. Metabolic Fate and Expectation of Health Benefits of [U- 14C]-Sucrose Inhibited from Digestion Using Morus alba Leaf Extract. J Nutr Sci Vitaminol (Tokyo) 2022; 68:294-302. [PMID: 36047101 DOI: 10.3177/jnsv.68.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Morus alba leaf extract (MLE), a strong inhibitor of sucrase, suppresses blood glucose elevation following sucrose ingestion. To investigate that sucrose inhibited from digestion using MLE is utilized through gut microbiota, [U-14C]-sucrose solutions with or without MLE were administered orally to conventional and antibiotic-treated rats, and the excretion of 14CO2 and H2 produced by gut microbiota was measured for 24 h. After an administration of [U-14C]-sucrose to conventional rats, the unit excreted 14CO2 peaked at 4 h, and the cumulative 14CO2 excreted over 24 h was approximately 60% of the radioactivity administered. No H2 was excreted. Following an administration of [U-14C]-sucrose and MLE in conventional rats, the unit excreted 14CO2 peaked later, at 8 h, and was significantly lower (p<0.05). The cumulative 14CO2 excreted over 24 h was equal in both groups, although there was a time lag of 2-3 h in rats given [U-14C]-sucrose and MLE. The amount of H2 excreted by these rats peaked 8 h after administration. Following the administration of [U-14C]-sucrose and MLE to antibiotic-treated rats, the unit excreted 14CO2 peaked lower, and the cumulative 14CO2 excretion over 24 h was approximately 40%. In this group, H2 was minimally excreted. H2 and 14CO2 produced by gut microbiota were excreted simultaneously. In conclusion, sucrose inhibited from digestion using MLE was fermented spontaneously by gut microbiota and was not excreted into feces. In addition, it confirmed that H2 excretion could be used directly to indicate the degree of fermentation of nondigestible carbohydrates.
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Affiliation(s)
- Tsuneyuki Oku
- Institute of International Nutrition & Health, Jumonji University.,Department of Nutritional Science, University of Nagasaki Siebold
| | - Sadako Nakamura
- Institute of International Nutrition & Health, Jumonji University
| | - Tomoya Takeshita
- Department of Nutritional Science, University of Nagasaki Siebold
| | | | - Kenichi Tanabe
- Faculty of Nutrition Sciences, Nakamura Gakuen University
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39
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Zhang Y, Zhao Y, Yang W, Song G, Zhong P, Ren Y, Zhong G. Structural complexity of Konjac glucomannan and its derivatives governs the diversity and outputs of gut microbiota. Carbohydr Polym 2022; 292:119639. [DOI: 10.1016/j.carbpol.2022.119639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 11/02/2022]
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40
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Modesto A, Cameron NR, Varghese C, Peters N, Stokes B, Phillips A, Bissett I, O'Grady G. Meta-Analysis of the Composition of Human Intestinal Gases. Dig Dis Sci 2022; 67:3842-3859. [PMID: 34623578 DOI: 10.1007/s10620-021-07254-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 09/13/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Understanding intestinal gases volume and composition may contribute to diagnosing digestive diseases and the microbiome's status. This meta-analysis aimed to define the composition of human intestinal gases and changes associated with diet. METHODS Studies were identified by systematic research of the MEDLINE(Ovid), Scopus, and Cochrane databases. Studies that measured the concentration of intestinal gases in healthy adult humans were retrieved. The JBI critical appraisal tool was used to evaluate the risk of bias. The primary outcomes analysed were the concentration of the most prevalent colonic gases. Participants were divided into groups according to dietary fibre content. RESULTS Eleven studies were included. The following gases were identified in similar concentrations across all studies (mean ± standard deviation): nitrogen (65.1 ± 20.89%), oxygen (2.3 ± 0.98%), carbon dioxide (9.9 ± 1.6%), hydrogen (2.9 ± 0.7%), and methane (14.4 ± 3.7%). Differences according to the dietary fibre were observed, with a positive correlation between fibre and volume of gas produced, particularly in fermented gases (carbon dioxide, hydrogen, and methane). DISCUSSION The meta-analysis has found defined concentrations of the five most common gases present in human colonic gas. Limitations included heterogenic methodologies, a low number of participants, and few recent studies. These findings may be helpful in diagnostic applications where colonic gas volume and composition are crucial factors, including functional disorders, microbiome analyses, and bowel perforation diagnostics.
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Affiliation(s)
- Andre Modesto
- Department of Surgery, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, 1023, New Zealand
| | - Nelle-Rose Cameron
- Department of Surgery, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, 1023, New Zealand
| | - Chris Varghese
- Department of Surgery, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, 1023, New Zealand
| | - Nicolas Peters
- Auckland Bioengineering Institute, The University of Auckland, Auckland, 1010, New Zealand
| | - Bruce Stokes
- Auckland Bioengineering Institute, The University of Auckland, Auckland, 1010, New Zealand
| | - Anthony Phillips
- Faculty of Science, The University of Auckland, Auckland, 1010, New Zealand
| | - Ian Bissett
- Department of Surgery, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, 1023, New Zealand
| | - Greg O'Grady
- Department of Surgery, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, 1023, New Zealand. .,Auckland Bioengineering Institute, The University of Auckland, Auckland, 1010, New Zealand.
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41
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Feng W, Liu J, Cheng H, Zhang D, Tan Y, Peng C. Dietary compounds in modulation of gut microbiota-derived metabolites. Front Nutr 2022; 9:939571. [PMID: 35928846 PMCID: PMC9343712 DOI: 10.3389/fnut.2022.939571] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/24/2022] [Indexed: 11/29/2022] Open
Abstract
Gut microbiota, a group of microorganisms that live in the gastrointestinal tract, plays important roles in health and disease. One mechanism that gut microbiota in modulation of the functions of hosts is achieved through synthesizing and releasing a series of metabolites such as short-chain fatty acids. In recent years, increasing evidence has indicated that dietary compounds can interact with gut microbiota. On one hand, dietary compounds can modulate the composition and function of gut microbiota; on the other hand, gut microbiota can metabolize the dietary compounds. Although there are several reviews on gut microbiota and diets, there is no focused review on the effects of dietary compounds on gut microbiota-derived metabolites. In this review, we first briefly discussed the types of gut microbiota metabolites, their origins, and the reasons that dietary compounds can interact with gut microbiota. Then, focusing on gut microbiota-derived compounds, we discussed the effects of dietary compounds on gut microbiota-derived compounds and the following effects on health. Furthermore, we give our perspectives on the research direction of the related research fields. Understanding the roles of dietary compounds on gut microbiota-derived metabolites will expand our knowledge of how diets affect the host health and disease, thus eventually enable the personalized diets and nutrients.
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Affiliation(s)
- Wuwen Feng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Juan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hao Cheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dandan Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuzhu Tan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Key Laboratory of the Ministry of Education for Standardization of Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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42
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Stoakes E, Savva GM, Coates R, Tejera N, Poolman MG, Grant AJ, Wain J, Singh D. Substrate Utilisation and Energy Metabolism in Non-Growing Campylobacter jejuni M1cam. Microorganisms 2022; 10:microorganisms10071355. [PMID: 35889074 PMCID: PMC9318392 DOI: 10.3390/microorganisms10071355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/23/2022] [Accepted: 06/30/2022] [Indexed: 02/04/2023] Open
Abstract
Campylobacter jejuni, the major cause of bacterial foodborne illness, is also a fastidious organism that requires strict growth requirements in the laboratory. Our aim was to study substrate utilisation and energy metabolism in non-growing C. jejuni to investigate the ability of these bacteria to survive so effectively in the food chain. We integrated phenotypic microarrays and genome-scale metabolic modelling (GSM) to investigate the survival of C. jejuni on 95 substrates. We further investigated the underlying metabolic re-adjustment associated with varying energy demands on each substrate. We identified amino acids, organic acids and H2, as single substrates supporting survival without growth. We identified several different mechanisms, which were used alone or in combination, for ATP production: substrate-level phosphorylation via acetate kinase, the TCA cycle, and oxidative phosphorylation via the electron transport chain that utilised alternative electron donors and acceptors. The benefit of ATP production through each of these mechanisms was associated with the cost of enzyme investment, nutrient availability and/or O2 utilisation. C. jejuni can utilise a wide range of substrates as energy sources, including organic acids commonly used for marination or preservation of ingredients, which might contribute to the success of their survival in changing environments.
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Affiliation(s)
- Emily Stoakes
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK; (E.S.); (R.C.); (A.J.G.)
| | - George M. Savva
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK; (G.M.S.); (N.T.)
| | - Ruby Coates
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK; (E.S.); (R.C.); (A.J.G.)
| | - Noemi Tejera
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK; (G.M.S.); (N.T.)
| | - Mark G. Poolman
- Cell System Modelling Group, Oxford Brookes University, Oxford OX3 0BP, UK;
| | - Andrew J. Grant
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK; (E.S.); (R.C.); (A.J.G.)
| | - John Wain
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK; (G.M.S.); (N.T.)
- Correspondence: (J.W.); (D.S.)
| | - Dipali Singh
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK; (G.M.S.); (N.T.)
- Correspondence: (J.W.); (D.S.)
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Cai M, Tang X. Human Archaea and Associated Metabolites in Health and Disease. Biochemistry 2022; 61:2835-2840. [PMID: 35770746 DOI: 10.1021/acs.biochem.2c00232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Trillions of microorganisms, including bacteria, archaea, fungi, and viruses, live in or on the human body. Microbe-microbe and microbe-host interactions are often influenced by diffusible and microbe-associated small molecules. Over the past few years, it has become evident that these interactions have a substantial impact on human health and disease. In this Perspective, we summarize the research involving the discovery of methanogenic and non-methanogenic archaea associated with the human body. In particular, we emphasize the importance of some archaeal metabolites in mediating intra- and interspecies interactions in the ecological environment of the human body. A deep understanding of the archaeal metabolites as well as their biological functions may reveal in more detail whether and how archaea are involved in maintaining human health and/or causing certain diseases.
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Affiliation(s)
- Mingwei Cai
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Xiaoyu Tang
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518132, China
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Catlett JL, Carr S, Cashman M, Smith MD, Walter M, Sakkaff Z, Kelley C, Pierobon M, Cohen MB, Buan NR. Metabolic Synergy between Human Symbionts Bacteroides and Methanobrevibacter. Microbiol Spectr 2022; 10:e0106722. [PMID: 35536023 PMCID: PMC9241691 DOI: 10.1128/spectrum.01067-22] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022] Open
Abstract
Trophic interactions between microbes are postulated to determine whether a host microbiome is healthy or causes predisposition to disease. Two abundant taxa, the Gram-negative heterotrophic bacterium Bacteroides thetaiotaomicron and the methanogenic archaeon Methanobrevibacter smithii, are proposed to have a synergistic metabolic relationship. Both organisms play vital roles in human gut health; B. thetaiotaomicron assists the host by fermenting dietary polysaccharides, whereas M. smithii consumes end-stage fermentation products and is hypothesized to relieve feedback inhibition of upstream microbes such as B. thetaiotaomicron. To study their metabolic interactions, we defined and optimized a coculture system and used software testing techniques to analyze growth under a range of conditions representing the nutrient environment of the host. We verify that B. thetaiotaomicron fermentation products are sufficient for M. smithii growth and that accumulation of fermentation products alters secretion of metabolites by B. thetaiotaomicron to benefit M. smithii. Studies suggest that B. thetaiotaomicron metabolic efficiency is greater in the absence of fermentation products or in the presence of M. smithii. Under certain conditions, B. thetaiotaomicron and M. smithii form interspecies granules consistent with behavior observed for syntrophic partnerships between microbes in soil or sediment enrichments and anaerobic digesters. Furthermore, when vitamin B12, hematin, and hydrogen gas are abundant, coculture growth is greater than the sum of growth observed for monocultures, suggesting that both organisms benefit from a synergistic mutual metabolic relationship. IMPORTANCE The human gut functions through a complex system of interactions between the host human tissue and the microbes which inhabit it. These diverse interactions are difficult to model or examine under controlled laboratory conditions. We studied the interactions between two dominant human gut microbes, B. thetaiotaomicron and M. smithii, using a seven-component culturing approach that allows the systematic examination of the metabolic complexity of this binary microbial system. By combining high-throughput methods with machine learning techniques, we were able to investigate the interactions between two dominant genera of the gut microbiome in a wide variety of environmental conditions. Our approach can be broadly applied to studying microbial interactions and may be extended to evaluate and curate computational metabolic models. The software tools developed for this study are available as user-friendly tutorials in the Department of Energy KBase.
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Affiliation(s)
- Jennie L. Catlett
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Sean Carr
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Mikaela Cashman
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Megan D. Smith
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Mary Walter
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Zahmeeth Sakkaff
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Christine Kelley
- Department of Mathematics, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Massimiliano Pierobon
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Myra B. Cohen
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- Department of Computer Science, Iowa State University, Ames, Iowa, USA
| | - Nicole R. Buan
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
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Verbeke K. Combining dietary fibres to reduce intestinal gas production in patients with IBS. Gut 2022; 71:848-849. [PMID: 34556522 DOI: 10.1136/gutjnl-2021-325618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 09/09/2021] [Indexed: 12/08/2022]
Affiliation(s)
- Kristin Verbeke
- Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium
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Mou Y, Du Y, Zhou L, Yue J, Hu X, Liu Y, Chen S, Lin X, Zhang G, Xiao H, Dong B. Gut Microbiota Interact With the Brain Through Systemic Chronic Inflammation: Implications on Neuroinflammation, Neurodegeneration, and Aging. Front Immunol 2022; 13:796288. [PMID: 35464431 PMCID: PMC9021448 DOI: 10.3389/fimmu.2022.796288] [Citation(s) in RCA: 86] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 02/22/2022] [Indexed: 02/05/2023] Open
Abstract
It has been noticed in recent years that the unfavorable effects of the gut microbiota could exhaust host vigor and life, yet knowledge and theory are just beginning to be established. Increasing documentation suggests that the microbiota-gut-brain axis not only impacts brain cognition and psychiatric symptoms but also precipitates neurodegenerative diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD), and multiple sclerosis (MS). How the blood-brain barrier (BBB), a machinery protecting the central nervous system (CNS) from the systemic circulation, allows the risky factors derived from the gut to be translocated into the brain seems paradoxical. For the unique anatomical, histological, and immunological properties underpinning its permeable dynamics, the BBB has been regarded as a biomarker associated with neural pathogenesis. The BBB permeability of mice and rats caused by GM dysbiosis raises the question of how the GM and its metabolites change BBB permeability and causes the brain pathophysiology of neuroinflammation and neurodegeneration (NF&ND) and brain aging, a pivotal multidisciplinary field tightly associated with immune and chronic systemic inflammation. If not all, gut microbiota-induced systemic chronic inflammation (GM-SCI) mainly refers to excessive gut inflammation caused by gut mucosal immunity dysregulation, which is often influenced by dietary components and age, is produced at the interface of the intestinal barrier (IB) or exacerbated after IB disruption, initiates various common chronic diseases along its dispersal routes, and eventually impairs BBB integrity to cause NF&ND and brain aging. To illustrate the immune roles of the BBB in pathophysiology affected by inflammatory or "leaky" IB resulting from GM and their metabolites, we reviewed the selected publications, including the role of the BBB as the immune barrier, systemic chronic inflammation and inflammation influences on BBB permeability, NF&ND, and brain aging. To add depth to the bridging role of systemic chronic inflammation, a plausible mechanism indispensable for BBB corruption was highlighted; namely, BBB maintenance cues are affected by inflammatory cytokines, which may help to understand how GM and its metabolites play a major role in NF&ND and aging.
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Affiliation(s)
- Yi Mou
- Geroscience and Chronic Disease Department, The Eighth Municipal Hospital for the People, Chengdu, China
| | - Yu Du
- Department of Emergency and Critical Care Medicine, The Fourth West China Hospital, Sichuan University, Chengdu, China
| | - Lixing Zhou
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jirong Yue
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xianliang Hu
- Geroscience and Chronic Disease Department, The Eighth Municipal Hospital for the People, Chengdu, China
| | - Yixin Liu
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Sao Chen
- Geroscience and Chronic Disease Department, The Eighth Municipal Hospital for the People, Chengdu, China
| | - Xiufang Lin
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Gongchang Zhang
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Hengyi Xiao
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Birong Dong
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Cirino G, Szabo C, Papapetropoulos A. Physiological roles of hydrogen sulfide in mammalian cells, tissues and organs. Physiol Rev 2022; 103:31-276. [DOI: 10.1152/physrev.00028.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
H2S belongs to the class of molecules known as gasotransmitters, which also includes nitric oxide (NO) and carbon monoxide (CO). Three enzymes are recognized as endogenous sources of H2S in various cells and tissues: cystathionine g-lyase (CSE), cystathionine β-synthase (CBS) and 3-mercaptopyruvate sulfurtransferase (3-MST). The current article reviews the regulation of these enzymes as well as the pathways of their enzymatic and non-enzymatic degradation and elimination. The multiple interactions of H2S with other labile endogenous molecules (e.g. NO) and reactive oxygen species are also outlined. The various biological targets and signaling pathways are discussed, with special reference to H2S and oxidative posttranscriptional modification of proteins, the effect of H2S on channels and intracellular second messenger pathways, the regulation of gene transcription and translation and the regulation of cellular bioenergetics and metabolism. The pharmacological and molecular tools currently available to study H2S physiology are also reviewed, including their utility and limitations. In subsequent sections, the role of H2S in the regulation of various physiological and cellular functions is reviewed. The physiological role of H2S in various cell types and organ systems are overviewed. Finally, the role of H2S in the regulation of various organ functions is discussed as well as the characteristic bell-shaped biphasic effects of H2S. In addition, key pathophysiological aspects, debated areas, and future research and translational areas are identified A wide array of significant roles of H2S in the physiological regulation of all organ functions emerges from this review.
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Affiliation(s)
- Giuseppe Cirino
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Csaba Szabo
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Switzerland
| | - Andreas Papapetropoulos
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece & Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Greece
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48
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Djemai K, Drancourt M, Tidjani Alou M. Bacteria and Methanogens in the Human Microbiome: a Review of Syntrophic Interactions. MICROBIAL ECOLOGY 2022; 83:536-554. [PMID: 34169332 DOI: 10.1007/s00248-021-01796-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Methanogens are microorganisms belonging to the Archaea domain and represent the primary source of biotic methane. Methanogens encode a series of enzymes which can convert secondary substrates into methane following three major methanogenesis pathways. Initially recognized as environmental microorganisms, methanogens have more recently been acknowledged as host-associated microorganisms after their detection and initial isolation in ruminants in the 1950s. Methanogens have also been co-detected with bacteria in various pathological situations, bringing their role as pathogens into question. Here, we review reported associations between methanogens and bacteria in physiological and pathological situations in order to understand the metabolic interactions explaining these associations. To do so, we describe the origin of the metabolites used for methanogenesis and highlight the central role of methanogens in the syntrophic process during carbon cycling. We then focus on the metabolic abilities of co-detected bacterial species described in the literature and infer from their genomes the probable mechanisms of their association with methanogens. The syntrophic interactions between bacteria and methanogens are paramount to gut homeostasis. Therefore, any dysbiosis affecting methanogens might impact human health. Thus, the monitoring of methanogens may be used as a bio-indicator of dysbiosis. Moreover, new therapeutic approaches can be developed based on their administration as probiotics. We thus insist on the importance of investigating methanogens in clinical microbiology.
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Affiliation(s)
- Kenza Djemai
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Michel Drancourt
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France
| | - Maryam Tidjani Alou
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France.
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Ge L, Qi J, Shao B, Ruan Z, Ren Y, Sui S, Wu X, Sun X, Liu S, Li S, Xu C, Song W. Microbial hydrogen economy alleviates colitis by reprogramming colonocyte metabolism and reinforcing intestinal barrier. Gut Microbes 2022; 14:2013764. [PMID: 35025709 PMCID: PMC8759589 DOI: 10.1080/19490976.2021.2013764] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
With the rapid development and high therapeutic efficiency and biosafety of gas-involving theranostics, hydrogen medicine has been particularly outstanding because hydrogen gas (H2), a microbial-derived gas, has potent anti-oxidative, anti-apoptotic, and anti-inflammatory activities in many disease models. Studies have suggested that H2-enriched saline/water alleviates colitis in murine models; however, the underlying mechanism remains poorly understood. Despite evidence demonstrating the importance of the microbial hydrogen economy, which reflects the balance between H2-producing (hydrogenogenic) and H2-utilizing (hydrogenotrophic) microbes in maintaining colonic mucosal ecosystems, minimal efforts have been exerted to manipulate relevant H2-microbe interactions for colonic health. Consistent with previous studies, we found that administration of hydrogen-rich saline (HS) ameliorated dextran sulfate sodium-induced acute colitis in a mouse model. Furthermore, we demonstrated that HS administration can increase the abundance of intestinal-specific short-chain fatty acid (SCFA)-producing bacteria and SCFA production, thereby activating the intracellular butyrate sensor peroxisome proliferator-activated receptor γ signaling and decreasing the epithelial expression of Nos2, consequently promoting the recovery of the colonic anaerobic environment. Our results also indicated that HS administration ameliorated disrupted intestinal barrier functions by modulating specific mucosa-associated mucolytic bacteria, leading to substantial inhibition of opportunistic pathogenic Escherichia coli expansion as well as a significant increase in the expression of interepithelial tight junction proteins and a decrease in intestinal barrier permeability in mice with colitis. Exogenous H2 reprograms colonocyte metabolism by regulating the H2-gut microbiota-SCFAs axis and strengthens the intestinal barrier by modulating specific mucosa-associated mucolytic bacteria, wherein improved microbial hydrogen economy alleviates colitis.
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Affiliation(s)
- Li Ge
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China,College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Jie Qi
- College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Bo Shao
- College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Zhenzhen Ruan
- College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Yueran Ren
- College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Shujing Sui
- Department of Gastroenterology, The Affiliated Taishan Hospital of Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Xinpei Wu
- College of Laboratory Animal & Shandong Laboratory Animal Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xueqiang Sun
- College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Shuman Liu
- College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Sha Li
- College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Changqing Xu
- Department of Gastroenterology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Wengang Song
- Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China,College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China,CONTACT Wengang Song Shandong Provincial Key Laboratory for Rheumatic Disease and Translational Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jingshi Road 16766, Jinan, Shandong250014, China; College of Basic Medical Sciences & Institute of Basic Medical Research, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao Road 6699, Jinan, Shandong 250000, China
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50
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Sun Q, Du M, Kang Y, Zhu MJ. Prebiotic effects of goji berry in protection against inflammatory bowel disease. Crit Rev Food Sci Nutr 2022:1-25. [PMID: 34991393 DOI: 10.1080/10408398.2021.2015680] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The prevalence of inflammatory bowel disease (IBD) is increasing, which is concerning because IBD is a known risk factor for the development of colorectal cancer. Emerging evidence highlights environmental factors, particularly dietary factors and gut microbiota dysbiosis, as pivotal inducers of IBD onset. Goji berry, an ancient tonic food and a nutraceutical supplement, contains a range of phytochemicals such as polysaccharides, carotenoids, and polyphenols. Among these phytochemicals, L. barbarum polysaccharides (LBPs) are the most important functional constituents, which have protective effects against oxidative stress, inflammation, and neurodegeneration. Recently, the beneficial effects of goji berry and associated LBPs consumption were linked to prebiotic effects, which can prevent dysbiosis associated with IBD. This review assessed pertinent literature on the protective effects of goji berry against IBD focusing on the gut microbiota and their metabolites in mediating the observed beneficial effects.
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Affiliation(s)
- Qi Sun
- School of Food Science, Washington State University, Pullman, Washington, USA
| | - Min Du
- Department of Animal Science, Washington State University, Pullman, Washington, USA
| | - Yifei Kang
- School of Food Science, Washington State University, Pullman, Washington, USA
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, Washington, USA
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