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Wolter M, Grant ET, Boudaud M, Pudlo NA, Pereira GV, Eaton KA, Martens EC, Desai MS. Diet-driven differential response of Akkermansia muciniphila modulates pathogen susceptibility. Mol Syst Biol 2024:10.1038/s44320-024-00036-7. [PMID: 38745106 DOI: 10.1038/s44320-024-00036-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/06/2024] [Accepted: 04/12/2024] [Indexed: 05/16/2024] Open
Abstract
The erosion of the colonic mucus layer by a dietary fiber-deprived gut microbiota results in heightened susceptibility to an attaching and effacing pathogen, Citrobacter rodentium. Nevertheless, the questions of whether and how specific mucolytic bacteria aid in the increased pathogen susceptibility remain unexplored. Here, we leverage a functionally characterized, 14-member synthetic human microbiota in gnotobiotic mice to deduce which bacteria and functions are responsible for the pathogen susceptibility. Using strain dropouts of mucolytic bacteria from the community, we show that Akkermansia muciniphila renders the host more vulnerable to the mucosal pathogen during fiber deprivation. However, the presence of A. muciniphila reduces pathogen load on a fiber-sufficient diet, highlighting the context-dependent beneficial effects of this mucin specialist. The enhanced pathogen susceptibility is not owing to altered host immune or pathogen responses, but is driven by a combination of increased mucus penetrability and altered activities of A. muciniphila and other community members. Our study provides novel insights into the mechanisms of how discrete functional responses of the same mucolytic bacterium either resist or enhance enteric pathogen susceptibility.
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Affiliation(s)
- Mathis Wolter
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Erica T Grant
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Marie Boudaud
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Nicholas A Pudlo
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Gabriel V Pereira
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Kathryn A Eaton
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Eric C Martens
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Mahesh S Desai
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.
- Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
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Zhang Z, Hu Y, Zhang N, Li J, Lu J, Wei H. Dietary supplementation with non-digestible isomaltooligosaccharide and Lactiplantibacillus plantarum ZDY2013 ameliorates DSS-induced colitis via modulating intestinal barrier integrity and the gut microbiota. Food Funct 2024. [PMID: 38738338 DOI: 10.1039/d4fo00421c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Non-digestible oligosaccharides have attracted attention due to their critical role in maintaining the balance of a host's gut microbiota. Lactiplantibacillus plantarum ZDY2013 was isolated from traditional fermented acid beans, which could metabolize many complex carbohydrates and had intestinal immunomodulatory effects. In our study, the ameliorative effect of a combination of non-digestible isomaltooligosaccharide (IMO) and L. plantarum ZDY2013 was investigated in dextran sulfate sodium (DSS)-induced colitis mice. The results showed that IMO could specifically promote L. plantarum ZDY2013 intestinal colonization after five days of gavage and ameliorate the symptoms of colitis (survival rate, DAI score, colon length, etc.) as well as colon tissue integrity. IMO combined with L. plantarum ZDY2013 increased the levels of intestinal tight junction proteins (ZO-1 and claudin) and mucin (MUC-2), followed by alleviation of inflammatory responses (decreased the expression of IL-1β, TNF-α, and IL-6 and increased the expression of IL-10 and IL-22) and the level of oxidative stress (decreased the level of COX-2 and iNOS and increased the expression of T-AOC and SOD). Furthermore, the combination increased the diversity of the gut microbiota and modulated the microbial structural component (decreased the abundance of Escherichia and Helicobacter and increased the abundance of Lactobacillus and SCFA-producing related species). Taken together, our results suggested that the consumption of IMO and L. plantarum ZDY2013 could improve the symptoms of colitis in mice by improving the intestinal barrier along with regulating the composition and metabolites of the gut microbiota.
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Affiliation(s)
- Zhihong Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
- Sino-German Joint Research Institute, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
- Chongqing Research Institute, Nanchang University, Chongqing 402660, China
| | - Yingsheng Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Na Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Jinmei Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Jinlin Lu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Hua Wei
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
- Sino-German Joint Research Institute, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
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Mahalak KK, Liu L, Bobokalonov J, Narrowe AB, Firrman J, Bittinger K, Hu W, Jones SM, Moustafa AM. Supplementation with soluble or insoluble rice-bran fibers increases short-chain fatty acid producing bacteria in the gut microbiota in vitro. Front Nutr 2024; 11:1304045. [PMID: 38798771 PMCID: PMC11116651 DOI: 10.3389/fnut.2024.1304045] [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: 09/28/2023] [Accepted: 04/11/2024] [Indexed: 05/29/2024] Open
Abstract
Introduction Studies have shown that a diet high in fiber and prebiotics has a positive impact on human health due largely to the fermentation of these compounds by the gut microbiota. One underutilized source of fiber may be rice bran, a waste product of rice processing that is used most frequently as an additive to livestock feed but may be a good source of fibers and other phenolic compounds as a human diet supplement. Previous studies focused on specific compounds extracted from rice bran showed that soluble fibers extracted from rice bran can improve glucose response and reduce weight gain in mouse models. However, less is known about changes in the human gut microbiota in response to regular rice bran consumption. Methods In this study, we used a Simulator of the Human Intestinal Microbial Ecology (SHIME®) to cultivate the human gut microbiota of 3 different donors in conditions containing either soluble or insoluble fiber fractions from rice bran. Using 16S rRNA amplicon sequencing and targeted metabolomics via Gas Chromatography-Mass Spectrometry, we explored how gut microbial communities developed provided different supplemental fiber sources. Results We found that insoluble and soluble fiber fractions increased short-chain fatty acid production, indicating that both fractions were fermented. However, there were differences in response between donors, for example the gut microbiota from donor 1 increased acetic acid production with both fiber types compared with control; whereas for donors 2 and 3, butanoic acid production increased with ISF and SF supplementation. Both soluble and insoluble rice bran fractions increased the abundance of Bifidobacterium and Lachnospiraceae taxa. Discussion Overall, analysis of the effect of soluble and insoluble rice bran fractions on the human in vitro gut microbiota and the metabolites produced revealed individually variant responses to these prebiotics.
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Affiliation(s)
- Karley K. Mahalak
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA, United States
| | - LinShu Liu
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA, United States
| | - Jamshed Bobokalonov
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA, United States
- V. I. Nikitin Institute of Chemistry, National Academy of Sciences, Dushanbe, Tajikistan
| | - Adrienne B. Narrowe
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA, United States
| | - Jenni Firrman
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA, United States
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Weiming Hu
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Steven M. Jones
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Ahmed M. Moustafa
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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Goswami M, Bose PD. Gut microbial dysbiosis in the pathogenesis of leukemia: an immune-based perspective. Exp Hematol 2024; 133:104211. [PMID: 38527589 DOI: 10.1016/j.exphem.2024.104211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/04/2024] [Accepted: 03/16/2024] [Indexed: 03/27/2024]
Abstract
Leukemias are a set of clonal hematopoietic malignant diseases that develop in the bone marrow. Several factors influence leukemia development and progression. Among these, the gut microbiota is a major factor influencing a wide array of its processes. The gut microbial composition is linked to the risk of tumor development and the host's ability to respond to treatment, mostly due to the immune-modulatory effects of their metabolites. Despite such strong evidence, its role in the development of hematologic malignancies still requires attention of investigators worldwide. In this review, we make an effort to discuss the role of host gut microbiota-immune crosstalk in leukemia development and progression. Additionally, we highlight certain recently developed strategies to modify the gut microbial composition that may help to overcome dysbiosis in leukemia patients in the near future.
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Affiliation(s)
- Mayuri Goswami
- Department of Molecular Biology and Biotechnology, Cotton University, Panbazar, Guwahati, Assam, India
| | - Purabi Deka Bose
- Department of Molecular Biology and Biotechnology, Cotton University, Panbazar, Guwahati, Assam, India.
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Barth I, Stevens CL, Strokap CJ, Campmans-Kuijpers MJE, Bourgonje AR, Dijkstra G. Letter: Diet-microbiome interactions in inflammatory bowel disease-Navigating towards individualised dietary strategies. Aliment Pharmacol Ther 2024; 59:1154-1155. [PMID: 38591810 DOI: 10.1111/apt.17927] [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: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 04/10/2024]
Abstract
LINKED CONTENTThis article is linked to Faqerah et al paper. To view this article, visit https://doi.org/10.1111/apt.17720
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Affiliation(s)
- Iris Barth
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Corien L Stevens
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Colette J Strokap
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Marjo J E Campmans-Kuijpers
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Arno R Bourgonje
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- The Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Gerard Dijkstra
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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Thorman AW, Morrow AL, Groeneveld A, Nauta A, Newburg DS. Validation of collection and anaerobic fermentation techniques for measuring prebiotic impact on gut microbiota. Pharmacol Res 2024; 203:107169. [PMID: 38583688 DOI: 10.1016/j.phrs.2024.107169] [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: 12/05/2023] [Revised: 03/25/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Defining the ability of prebiotic dietary carbohydrates to influence the composition and metabolism of the gut microbiota is central to defining their health impact in diverse individuals. Many clinical trials are using indirect methods. This study aimed to validate collection and fermentation methods enabling their use in the context of clinical studies. METHODS AND RESULTS Parameters tested included stool sample acquisition, storage, and growth conditions. Stool from 3 infants and 3 adults was collected and stored under varying conditions. Samples were cultured anaerobically for two days in the presence of prebiotics, whereupon optical density and pH were measured across time. Whole genome shotgun sequencing and NMR metabolomics were performed. Neither the type of collection vial (standard vial and two different BD anaerobic collection vials) nor cryopreservation (-80 °C or 4 °C) significantly influenced either microbial composition at 16 h of anaerobic culture or the principal components of the metabolome at 8 or 16 h. Metagenomic differences were driven primarily by subject, while metabolomic differences were driven by fermentation sugar (2'-fucosyllactose or dextrose). CONCLUSIONS These data identified a feasible and valid approach for prebiotic fermentation analysis of individual samples in large clinical studies: collection of stool microbiota using standard vials; cryopreservation prior to testing; and collecting fermentation read-out at 8 and 16 hr. Thus, fermentation analysis can be a valid technique for testing the effects of prebiotics on human fecal microbiota.
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Affiliation(s)
- Alexander W Thorman
- University of Cincinnati College of Medicine, Department of Environmental and Public Health Sciences, Kettering Labs, 160 Panzeca Way, Cincinnati, OH 45267, United States.
| | - Ardythe L Morrow
- University of Cincinnati College of Medicine, Department of Environmental and Public Health Sciences, Kettering Labs, 160 Panzeca Way, Cincinnati, OH 45267, United States.
| | - Andre Groeneveld
- FrieslandCampina, Bronland 20, Wageningen 6708 WH, the Netherlands.
| | - Arjen Nauta
- FrieslandCampina, Bronland 20, Wageningen 6708 WH, the Netherlands.
| | - David S Newburg
- University of Cincinnati College of Medicine, Department of Environmental and Public Health Sciences, Kettering Labs, 160 Panzeca Way, Cincinnati, OH 45267, United States.
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Yu HR, Yeh YT, Tzeng HT, Dai HY, Lee WC, Wu KLH, Chan JYH, Tain YL, Hsu CN. Carbohydrate-Mediated Pregnancy Gut Microbiota and Neonatal Low Birth Weight. Nutrients 2024; 16:1326. [PMID: 38732572 PMCID: PMC11085476 DOI: 10.3390/nu16091326] [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: 03/26/2024] [Revised: 04/19/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
The effects of gut microbiota on the association between carbohydrate intake during pregnancy and neonatal low birth weight (LBW) were investigated. A prospective cohort study was conducted with 257 singleton-born mother-child pairs in Taiwan, and maternal dietary intake was estimated using a questionnaire, with each macronutrient being classified as low, medium, or high. Maternal fecal samples were collected between 24 and 28 weeks of gestation, and gut microbiota composition and diversity were profiled using 16S rRNA amplicon gene sequencing. Carbohydrates were the major source of total energy (56.61%), followed by fat (27.92%) and protein (15.46%). The rate of infant LBW was 7.8%, which was positively correlated with maternal carbohydrate intake. In the pregnancy gut microbiota, Bacteroides ovatus and Dorea spp. were indirectly and directly negatively associated with fetal growth, respectively; Rosenburia faecis was directly positively associated with neonatal birth weight. Maternal hypertension during pregnancy altered the microbiota features and was associated with poor fetal growth. Microbiota-accessible carbohydrates can modify the composition and function of the pregnancy gut microbiota, thus providing a potential marker to modulate deviations from dietary patterns, particularly in women at risk of hypertension during pregnancy, to prevent neonatal LBW.
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Affiliation(s)
- Hong-Ren Yu
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Graduate Institute of Clinical Medical Science, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - Yao-Tsung Yeh
- Aging and Disease Prevention Research Center, Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung 831, Taiwan
| | - Hong-Tai Tzeng
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - Hong-Ying Dai
- Aging and Disease Prevention Research Center, Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung 831, Taiwan
| | - Wei-Chia Lee
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - Kay L. H. Wu
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - Julie Y. H. Chan
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - You-Lin Tain
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Holmberg SM, Feeney RH, Prasoodanan P K V, Puértolas-Balint F, Singh DK, Wongkuna S, Zandbergen L, Hauner H, Brandl B, Nieminen AI, Skurk T, Schroeder BO. The gut commensal Blautia maintains colonic mucus function under low-fiber consumption through secretion of short-chain fatty acids. Nat Commun 2024; 15:3502. [PMID: 38664378 PMCID: PMC11045866 DOI: 10.1038/s41467-024-47594-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Beneficial gut bacteria are indispensable for developing colonic mucus and fully establishing its protective function against intestinal microorganisms. Low-fiber diet consumption alters the gut bacterial configuration and disturbs this microbe-mucus interaction, but the specific bacteria and microbial metabolites responsible for maintaining mucus function remain poorly understood. By using human-to-mouse microbiota transplantation and ex vivo analysis of colonic mucus function, we here show as a proof-of-concept that individuals who increase their daily dietary fiber intake can improve the capacity of their gut microbiota to prevent diet-mediated mucus defects. Mucus growth, a critical feature of intact colonic mucus, correlated with the abundance of the gut commensal Blautia, and supplementation of Blautia coccoides to mice confirmed its mucus-stimulating capacity. Mechanistically, B. coccoides stimulated mucus growth through the production of the short-chain fatty acids propionate and acetate via activation of the short-chain fatty acid receptor Ffar2, which could serve as a new target to restore mucus growth during mucus-associated lifestyle diseases.
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Affiliation(s)
- Sandra M Holmberg
- Department of Molecular Biology, Umeå University, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Rachel H Feeney
- Department of Molecular Biology, Umeå University, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Vishnu Prasoodanan P K
- Department of Molecular Biology, Umeå University, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Fabiola Puértolas-Balint
- Department of Molecular Biology, Umeå University, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Dhirendra K Singh
- Department of Molecular Biology, Umeå University, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Supapit Wongkuna
- Department of Molecular Biology, Umeå University, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Lotte Zandbergen
- Department of Molecular Biology, Umeå University, Umeå, Sweden
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Hans Hauner
- Institute in Nutritional Medicine, TU Munich, Munich, Germany
- TU Munich, School of Medicine, Munich, Germany
| | - Beate Brandl
- ZIEL Institute for Food and Health, TU Munich, Munich, Germany
| | - Anni I Nieminen
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Thomas Skurk
- ZIEL Institute for Food and Health, TU Munich, Munich, Germany
| | - Bjoern O Schroeder
- Department of Molecular Biology, Umeå University, Umeå, Sweden.
- Laboratory for Molecular Infection Medicine Sweden (MIMS) and Umeå Center for Microbial Research (UCMR), Umeå University, Umeå, Sweden.
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Culver RN, Spencer SP, Violette A, Lemus Silva EG, Takeuchi T, Nafarzadegan C, Higginbottom SK, Shalon D, Sonnenburg J, Huang KC. Improved mouse models of the small intestine microbiota using region-specific sampling from humans. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.24.590999. [PMID: 38712253 PMCID: PMC11071525 DOI: 10.1101/2024.04.24.590999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Our understanding of region-specific microbial function within the gut is limited due to reliance on stool. Using a recently developed capsule device, we exploit regional sampling from the human intestines to develop models for interrogating small intestine (SI) microbiota composition and function. In vitro culturing of human intestinal contents produced stable, representative communities that robustly colonize the SI of germ-free mice. During mouse colonization, the combination of SI and stool microbes altered gut microbiota composition, functional capacity, and response to diet, resulting in increased diversity and reproducibility of SI colonization relative to stool microbes alone. Using a diverse strain library representative of the human SI microbiota, we constructed defined communities with taxa that largely exhibited the expected regional preferences. Response to a fiber-deficient diet was region-specific and reflected strain-specific fiber-processing and host mucus-degrading capabilities, suggesting that dietary fiber is critical for maintaining SI microbiota homeostasis. These tools should advance mechanistic modeling of the human SI microbiota and its role in disease and dietary responses.
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Affiliation(s)
- Rebecca N. Culver
- Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Sean Paul Spencer
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Arvie Violette
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Evelyn Giselle Lemus Silva
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tadashi Takeuchi
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ceena Nafarzadegan
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Steven K. Higginbottom
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Dari Shalon
- Envivo Bio, Inc., San Francisco, CA 94107, USA
| | - Justin Sonnenburg
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Chan Zuckerberg Biohub, San Francisco, CA 94158
| | - Kerwyn Casey Huang
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
- Chan Zuckerberg Biohub, San Francisco, CA 94158
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10
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Juul F, Bere E. Ultra-processed foods - a scoping review for Nordic Nutrition Recommendations 2023. Food Nutr Res 2024; 68:10616. [PMID: 38720949 PMCID: PMC11077402 DOI: 10.29219/fnr.v68.10616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 01/05/2024] [Accepted: 02/22/2024] [Indexed: 05/12/2024] Open
Abstract
Ultra-processed foods (UPFs) are increasingly consumed worldwide and have been linked to several chronic diseases. This paper aims to describe the totality of the available evidence regarding UPFs in relation to health-related outcomes as a basis for setting food-based dietary guidelines for the Nordic Nutrition Recommendations 2023. Systematic literature searches were conducted to identify systematic reviews, meta-analyses, randomized controlled trials (RCTs), and prospective cohort studies examining the association between UPF intake and non-communicable diseases or mortality. A total of 12 systematic reviews (including five meta-analyses) and 44 original research studies (43 prospective cohort studies and one RCT) were included. All original research studies were deemed to be of good methodological quality. The current evidence supports that greater consumption of UPFs is associated with weight gain and increased risk of obesity, cardiovascular disease, type 2 diabetes, and all-cause mortality. The available literature also supports an association between UPFs and hypertension, cancer, and depression; however, the limited number of studies and subjects investigated preclude strong conclusions. Due to the highly diverse nature of UPFs, additional studies are warranted, with special emphasis on disentangling mediating mechanisms, whether nutritional or non-nutrient based. Nevertheless, the available evidence regarding UPFs in relation to weight gain, CVD, type 2 diabetes, and all-cause mortality is considered strong enough to support dietary recommendations to limit their consumption.
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Affiliation(s)
- Filippa Juul
- School of Global Public Health, New York University, New York, NY, USA
- Center for Epidemiological Studies in Health and Nutrition, School of Public Health, University of São Paulo, São Paulo, Brazil
| | - Elling Bere
- Department of Sports Science and Physical Education, University of Agder, Kristiansand, Norway
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11
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Loy L, Petronio L, Marcozzi G, Bezzio C, Armuzzi A. Dietary Fiber in Inflammatory Bowel Disease: Are We Ready to Change the Paradigm? Nutrients 2024; 16:1108. [PMID: 38674799 PMCID: PMC11053563 DOI: 10.3390/nu16081108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Accumulating evidence from pre-clinical and clinical studies demonstrate the benefit of dietary fibers for inflammatory bowel disease (IBD). However, the majority of patients avoid or limit their consumption to manage their symptoms during the active and remission phases, although limited research supports these long-term dietary habits. Although recent evidence-based dietary guidelines highlight the importance of promoting an adequate intake of dietary fiber in IBD patients, intervention trials have not yet clearly clarified the quality and quantity of dietary fiber that should be consumed to be equally tolerated by and provide benefit for patients with IBD. This narrative review describes dietary fibers and their characteristics, analyzes the real-word studies on the impact of dietary fiber consumption in IBD in different clinical settings, and concludes with potential future directions in fiber research, focusing on the real-world needs of characterizing the consumption of fiber-rich foods and promoting their adequate intake.
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Affiliation(s)
- Laura Loy
- IBD Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (L.L.); (C.B.)
| | - Lorenzo Petronio
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (L.P.); (G.M.)
| | - Giacomo Marcozzi
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (L.P.); (G.M.)
| | - Cristina Bezzio
- IBD Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (L.L.); (C.B.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (L.P.); (G.M.)
| | - Alessandro Armuzzi
- IBD Unit, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy; (L.L.); (C.B.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy; (L.P.); (G.M.)
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12
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Tang S, Dong X, Ma Y, Zhou H, He Y, Ren D, Li X, Cai Y, Wang Q, Wu L. Highly crystalline cellulose microparticles from dealginated seaweed waste ameliorate high fat-sugar diet-induced hyperlipidemia in mice by modulating gut microbiota. Int J Biol Macromol 2024; 263:130485. [PMID: 38423434 DOI: 10.1016/j.ijbiomac.2024.130485] [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: 09/19/2023] [Revised: 02/10/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
The effects of seaweed cellulose (SC) on high fat-sugar diet (HFSD)-induced glucolipid metabolism disorders in mice and potential mechanisms were investigated. SC was isolated from dealginated residues of giant kelp (Macrocystis pyrifera), with a crystallinity index of 85.51 % and an average particle size of 678.2 nm. Administering SC to C57BL/6 mice at 250 or 500 mg/kg BW/day via intragastric gavage for six weeks apparently inhibited the development of HFSD-induced obesity, dyslipidemia, insulin resistance, oxidative stress and liver damage. Notably, SC intervention partially restored the structure and composition of the gut microbiota altered by the HFSD, substantially lowering the Firmicutes to Bacteroidetes ratio, and greatly increasing the relative abundance of Lactobacillus, Bifidobacterium, Oscillospira, Bacteroides and Akkermansia, which contributed to improved short-chain fatty acid (SCFA) production. Supplementing with a higher dose of SC led to more significant increases in total SCFA (67.57 %), acetate (64.56 %), propionate (73.52 %) and butyrate (66.23 %) concentrations in the rectal contents of HFSD-fed mice. The results indicated that highly crystalline SC microparticles could modulate gut microbiota dysbiosis and ameliorate HFSD-induced obesity and related metabolic syndrome in mice. Furthermore, particle size might have crucial impact on the prebiotic effects of cellulose as insoluble dietary fiber.
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Affiliation(s)
- Shiying Tang
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Xiuyu Dong
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Yueyun Ma
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Hui Zhou
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Yunhai He
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Dandan Ren
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Xiang Li
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Yidi Cai
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China
| | - Qiukuan Wang
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
| | - Long Wu
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China; National R&D Branch Center for Seaweed Processing, Dalian Ocean University, Dalian 116023, China.
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13
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Chen Z, Liang N, Zhang H, Li H, Guo J, Zhang Y, Chen Y, Wang Y, Shi N. Resistant starch and the gut microbiome: Exploring beneficial interactions and dietary impacts. Food Chem X 2024; 21:101118. [PMID: 38282825 PMCID: PMC10819196 DOI: 10.1016/j.fochx.2024.101118] [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: 10/16/2023] [Revised: 12/20/2023] [Accepted: 01/01/2024] [Indexed: 01/30/2024] Open
Abstract
The intricate relationship between resistant starch (RS) and the gut microbiome presents a dynamic frontier in nutrition science. This review synthesizes current understandings of how RS, an indigestible form of starch found naturally in certain foods and also enhanced through various modification methods, interacts with the gut microbiome. We particularly focus on how RS fermentation in the colon contributes to the production of beneficial volatile fatty acids (VFAs) such as butyrate, acetate, and propionate. These VFAs have been recognized for their vital roles in maintaining gut barrier integrity, modulating inflammation, and potentially influencing systemic health. Additionally, we discuss the dietary implications of consuming foods rich in RS, both in terms of gut health and broader metabolic outcomes. By consolidating these insights, we emphasize the significance of RS in the context of dietary strategies aimed at harnessing the gut microbiome's potential to impact human health.
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Affiliation(s)
| | | | - Haili Zhang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huizhen Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Guo
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yujing Zhang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yaxin Chen
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yanping Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Nannan Shi
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
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14
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Hecht AL, Harling LC, Friedman ES, Tanes C, Lee J, Firrman J, Hao F, Tu V, Liu L, Patterson AD, Bittinger K, Goulian M, Wu GD. Dietary carbohydrates regulate intestinal colonization and dissemination of Klebsiella pneumoniae. J Clin Invest 2024; 134:e174726. [PMID: 38512401 PMCID: PMC11060737 DOI: 10.1172/jci174726] [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: 08/11/2023] [Accepted: 03/12/2024] [Indexed: 03/23/2024] Open
Abstract
Bacterial translocation from the gut microbiota is a source of sepsis in susceptible patients. Previous work suggests that overgrowth of gut pathobionts, including Klebsiella pneumoniae, increases the risk of disseminated infection. Our data from a human dietary intervention study found that, in the absence of fiber, K. pneumoniae bloomed during microbiota recovery from antibiotic treatment. We thus hypothesized that dietary nutrients directly support or suppress colonization of this gut pathobiont in the microbiota. Consistent with our study in humans, complex carbohydrates in dietary fiber suppressed the colonization of K. pneumoniae and allowed for recovery of competing commensals in mouse models. In contrast, through ex vivo and in vivo modeling, we identified simple carbohydrates as a limiting resource for K. pneumoniae in the gut. As proof of principle, supplementation with lactulose, a nonabsorbed simple carbohydrate and an FDA-approved therapy, increased colonization of K. pneumoniae. Disruption of the intestinal epithelium led to dissemination of K. pneumoniae into the bloodstream and liver, which was prevented by dietary fiber. Our results show that dietary simple and complex carbohydrates were critical not only in the regulation of pathobiont colonization but also disseminated infection, suggesting that targeted dietary interventions may offer a preventative strategy in high-risk patients.
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Affiliation(s)
- Aaron L. Hecht
- Division of Gastroenterology and Hepatology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lisa C. Harling
- Division of Gastroenterology and Hepatology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Elliot S. Friedman
- Division of Gastroenterology and Hepatology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ceylan Tanes
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Junhee Lee
- Division of Gastroenterology and Hepatology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jenni Firrman
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, US Department of Agriculture, Wyndmoor, Pennsylvania, USA
| | - Fuhua Hao
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Vincent Tu
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - LinShu Liu
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, US Department of Agriculture, Wyndmoor, Pennsylvania, USA
| | - Andrew D. Patterson
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Mark Goulian
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Gary D. Wu
- Division of Gastroenterology and Hepatology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Basuray N, Deehan EC, Vieira FT, Avedzi HM, Duke RL, Colín-Ramírez E, Tun HM, Zhang Z, Wine E, Madsen KL, Field CJ, Haqq AM. Dichotomous effect of dietary fiber in pediatrics: a narrative review of the health benefits and tolerance of fiber. Eur J Clin Nutr 2024:10.1038/s41430-024-01429-5. [PMID: 38480843 DOI: 10.1038/s41430-024-01429-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 02/27/2024] [Accepted: 03/01/2024] [Indexed: 03/18/2024]
Abstract
Dietary fibers are associated with favorable gastrointestinal, immune, and metabolic health outcomes when consumed at sufficient levels. Despite the well-described benefits of dietary fibers, children and adolescents continue to fall short of daily recommended levels. This gap in fiber intake (i.e., "fiber gap") might increase the risk of developing early-onset pediatric obesity and obesity-related comorbidities such as type 2 diabetes mellitus into adulthood. The structure-dependent physicochemical properties of dietary fiber are diverse. Differences in solubility, viscosity, water-holding capacity, binding capability, bulking effect, and fermentability influence the physiological effects of dietary fibers that aid in regulating appetite, glycemic and lipidemic responses, and inflammation. Of growing interest is the fermentation of fibers by the gut microbiota, which yields both beneficial and less favorable end-products such as short-chain fatty acids (e.g., acetate, propionate, and butyrate) that impart metabolic and immunomodulatory properties, and gases (e.g., hydrogen, carbon dioxide, and methane) that cause gastrointestinal symptoms, respectively. This narrative review summarizes (1) the implications of fibers on the gut microbiota and the pathophysiology of pediatric obesity, (2) some factors that potentially contribute to the fiber gap with an emphasis on undesirable gastrointestinal symptoms, (3) some methods to alleviate fiber-induced symptoms, and (4) the therapeutic potential of whole foods and commonly marketed fiber supplements for improved health in pediatric obesity.
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Affiliation(s)
- Nandini Basuray
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Edward C Deehan
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE, USA
- Nebraska Food for Health Center, Lincoln, NE, USA
| | - Flávio T Vieira
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Hayford M Avedzi
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Reena L Duke
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | | | - Hein M Tun
- JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Zhengxiao Zhang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian, China
| | - Eytan Wine
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Karen L Madsen
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Catherine J Field
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Andrea M Haqq
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada.
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
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16
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Carter MM, Spencer SP. Resisting weight gain with prebiotic fibre. Nat Metab 2024; 6:389-391. [PMID: 38409603 DOI: 10.1038/s42255-024-00998-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Affiliation(s)
- Matthew M Carter
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Sean P Spencer
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA.
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford School of Medicine, Stanford, CA, USA.
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17
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Lee SH, Lee JH, Lee SW. Application of Microbiome-Based Therapies in Chronic Respiratory Diseases. J Microbiol 2024; 62:201-216. [PMID: 38635003 DOI: 10.1007/s12275-024-00124-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/02/2024] [Accepted: 02/16/2024] [Indexed: 04/19/2024]
Abstract
The application of microbiome-based therapies in various areas of human disease has recently increased. In chronic respiratory disease, microbiome-based clinical applications are considered compelling options due to the limitations of current treatments. The lung microbiome is ecologically dynamic and affected by various conditions, and dysbiosis is associated with disease severity, exacerbation, and phenotype as well as with chronic respiratory disease endotype. However, it is not easy to directly modulate the lung microbiome. Additionally, studies have shown that chronic respiratory diseases can be improved by modulating gut microbiome and administrating metabolites. Although the composition, diversity, and abundance of the microbiome between the gut and lung are considerably different, modulation of the gut microbiome could improve lung dysbiosis. The gut microbiome influences that of the lung via bacterial-derived components and metabolic degradation products, including short-chain fatty acids. This phenomenon might be associated with the cross-talk between the gut microbiome and lung, called gut-lung axis. There are multiple alternatives to modulate the gut microbiome, such as prebiotics, probiotics, and postbiotics ingestion and fecal material transplantation. Several studies have shown that high-fiber diets, for example, present beneficial effects through the production of short-chain fatty acids. Additionally, genetically modified probiotics to secrete some beneficial molecules might also be utilized to treat chronic respiratory diseases. Further studies on microbial modulation to regulate immunity and potentiate conventional pharmacotherapy will improve microbiome modulation techniques, which will develop as a new therapeutic area in chronic respiratory diseases.
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Affiliation(s)
- Se Hee Lee
- Department of Pulmonology, Allergy and Critical Care Medicine, CHA Bundang Medical Center, CHA University, Seongnam, 13496, Republic of Korea
| | - Jang Ho Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Sei Won Lee
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea.
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18
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Korpela K, Hurley S, Ford SA, Franklin R, Byrne S, Lunjani N, Forde B, Neogi U, Venter C, Walter J, Hourihane J, O'Mahony L. Association between gut microbiota development and allergy in infants born during pandemic-related social distancing restrictions. Allergy 2024. [PMID: 38419554 DOI: 10.1111/all.16069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/05/2024] [Accepted: 02/06/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Several hypotheses link reduced microbial exposure to increased prevalence of allergies. Here we capitalize on the opportunity to study a cohort of infants (CORAL), raised during COVID-19 associated social distancing measures, to identify the environmental exposures and dietary factors that contribute to early life microbiota development and to examine their associations with allergic outcomes. METHODS Fecal samples were sequenced from infants at 6 (n = 351) and repeated at 12 (n = 343) months, using 16S sequencing. Published 16S data from pre-pandemic cohorts were included for microbiota comparisons. Online questionnaires collected epidemiological information on home environment, healthcare utilization, infant health, allergic diseases, and diet. Skin prick testing (SPT) was performed at 12 (n = 343) and 24 (n = 320) months of age, accompanied by atopic dermatitis and food allergy assessments. RESULTS The relative abundance of bifidobacteria was higher, while environmentally transmitted bacteria such as Clostridia was lower in CORAL infants compared to previous cohorts. The abundance of multiple Clostridia taxa correlated with a microbial exposure index. Plant based foods during weaning positively impacted microbiota development. Bifidobacteria levels at 6 months of age, and relative abundance of butyrate producers at 12 months of age, were negatively associated with AD and SPT positivity. The prevalence of allergen sensitization, food allergy, and AD did not increase over pre-pandemic levels. CONCLUSIONS Environmental exposures and dietary components significantly impact microbiota community assembly. Our results also suggest that vertically transmitted bacteria and appropriate dietary supports may be more important than exposure to environmental microbes alone for protection against allergic diseases in infancy.
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Affiliation(s)
- Katri Korpela
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Sadhbh Hurley
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Health Ireland, Dublin, Ireland
| | | | - Ruth Franklin
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Susan Byrne
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Health Ireland, Dublin, Ireland
| | | | - Brian Forde
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Ujjwal Neogi
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | - Carina Venter
- Section of Allergy & Immunology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Jens Walter
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- Department of Medicine, University College Cork, Cork, Ireland
| | - Jonathan Hourihane
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Health Ireland, Dublin, Ireland
| | - Liam O'Mahony
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- Department of Medicine, University College Cork, Cork, Ireland
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19
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Wang Y, Ma M, Dai W, Shang Q, Yu G. Bacteroides salyersiae is a potent chondroitin sulfate-degrading species in the human gut microbiota. MICROBIOME 2024; 12:41. [PMID: 38419055 PMCID: PMC10902947 DOI: 10.1186/s40168-024-01768-2] [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: 08/30/2023] [Accepted: 01/19/2024] [Indexed: 03/02/2024]
Abstract
Chondroitin sulfate (CS) has widely been used as a symptomatic slow-acting drug or a dietary supplement for the treatment and prevention of osteoarthritis. However, CS could not be absorbed after oral intake due to its polyanionic nature and large molecular weight. Gut microbiota has recently been proposed to play a pivotal role in the metabolism of drugs and nutrients. Nonetheless, how CS is degraded by the human gut microbiota has not been fully characterized. In the present study, we demonstrated that each human gut microbiota was characterized with a unique capability for CS degradation. Degradation and fermentation of CS by the human gut microbiota produced significant amounts of unsaturated CS oligosaccharides (CSOSs) and short-chain fatty acids. To uncover which microbes were responsible for CS degradation, we isolated a total of 586 bacterial strains with a potential CS-degrading capability from 23 human fecal samples. Bacteroides salyersiae was a potent species for CS degradation in the human gut microbiota and produced the highest amount of CSOSs as compared to other well-recognized CS-degraders, including Bacteroides finegoldii, Bacteroides thetaiotaomicron, Bacteroides xylanisolvens, and Bacteroides ovatus. Genomic analysis suggested that B. salyersiae was armed with multiple carbohydrate-active enzymes that could potentially degrade CS into CSOSs. By using a spent medium assay, we further demonstrated that the unsaturated tetrasaccharide (udp4) produced by the primary degrader B. salyersiae could serve as a "public goods" molecule for the growth of Bacteroides stercoris, a secondary CS-degrader that was proficient at fermenting CSOSs but not CS. Taken together, our study provides insights into the metabolism of CS by the human gut microbiota, which has promising implications for the development of medical and nutritional therapies for osteoarthritis. Video Abstract.
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Affiliation(s)
- Yamin Wang
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Mingfeng Ma
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Wei Dai
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Qingsen Shang
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao, 266237, China.
- Qingdao Marine Biomedical Research Institute, Qingdao, 266071, China.
| | - Guangli Yu
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao, 266237, China.
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20
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Truter M, Koopman JE, Jordaan K, Tsamkxao LO, Cowan DA, Underdown SJ, Ramond JB, Rifkin RF. Documenting the diversity of the Namibian Ju|'hoansi intestinal microbiome. Cell Rep 2024; 43:113690. [PMID: 38244196 DOI: 10.1016/j.celrep.2024.113690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 10/27/2023] [Accepted: 01/04/2024] [Indexed: 01/22/2024] Open
Abstract
We investigate the bacterial and fungal composition and functionality of the Ju|'hoansi intestinal microbiome (IM). The Juǀ'hoansi are a hunter-gatherer community residing in northeastern Namibia. They formerly subsisted by hunting and gathering but have been increasingly exposed to industrial dietary sources, medicines, and lifestyle features. They present an opportunity to study the evolution of the human IM in situ, from a predominantly hunter-gatherer to an increasingly Western urban-forager-farmer lifestyle. Their bacterial IM resembles that of typical hunter-gatherers, being enriched for genera such as Prevotella, Blautia, Faecalibacterium, Succinivibrio, and Treponema. Fungal IM inhabitants include animal pathogens and plant saprotrophs such as Fusarium, Issatchenkia, and Panellus. Our results suggest that diet and culture exert a greater influence on Ju|'hoansi IM composition than age, self-identified biological sex, and medical history. The Ju|'hoansi exhibit a unique core IM composition that diverges from the core IMs of other populations.
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Affiliation(s)
- Mia Truter
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hatfield 0028, South Africa; Scientific Computing Research Unit, Department of Chemistry, University of Cape Town, Rondebosch 7700, South Africa
| | - Jessica E Koopman
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hatfield 0028, South Africa
| | - Karen Jordaan
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hatfield 0028, South Africa
| | - Leon Oma Tsamkxao
- Juǀ'hoan Traditional Authority (JUTA), Tsumkwe, Otjozondjupa Region, Namibia
| | - Don A Cowan
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hatfield 0028, South Africa
| | - Simon J Underdown
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hatfield 0028, South Africa; Department of Anthropology and Geography, Human Origins and Palaeoenvironmental Research Group, Oxford Brookes University, Oxford OX3 0BP, UK
| | - Jean-Baptiste Ramond
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hatfield 0028, South Africa; Department of Anthropology and Geography, Human Origins and Palaeoenvironmental Research Group, Oxford Brookes University, Oxford OX3 0BP, UK; Extreme Ecosystem Microbiomics & Ecogenomics (E(2)ME) Lab., Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Riaan F Rifkin
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hatfield 0028, South Africa; Juǀ'hoan Traditional Authority (JUTA), Tsumkwe, Otjozondjupa Region, Namibia; Department of Anthropology and Geography, Human Origins and Palaeoenvironmental Research Group, Oxford Brookes University, Oxford OX3 0BP, UK.
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Ghosh S, Erickson D, Chua MJ, Collins J, Jala VR. The microbial metabolite urolithin A reduces Clostridioides difficile toxin expression and toxin-induced epithelial damage. mSystems 2024; 9:e0125523. [PMID: 38193707 PMCID: PMC10878087 DOI: 10.1128/msystems.01255-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024] Open
Abstract
Clostridioides difficile is a Gram-positive, anaerobic, spore-forming bacterium responsible for antibiotic-associated pseudomembranous colitis. Clostridioides difficile infection (CDI) symptoms can range from diarrhea to life-threatening colon damage. Toxins produced by C. difficile (TcdA and TcdB) cause intestinal epithelial injury and lead to severe gut barrier dysfunction, stem cell damage, and impaired regeneration of the gut epithelium. Current treatment options for intestinal repair are limited. In this study, we demonstrate that treatment with the microbial metabolite urolithin A (UroA) attenuates CDI-induced adverse effects on the colon epithelium in a preclinical model of CDI-induced colitis. Moreover, our analysis suggests that UroA treatment protects against C. difficile-induced inflammation, disruption of gut barrier integrity, and intestinal tight junction proteins in the colon of CDI mice. Importantly, UroA treatment significantly reduced the expression and release of toxins from C. difficile without inducing bacterial cell death. These results indicate the direct regulatory effects of UroA on bacterial gene regulation. Overall, our findings reveal a novel aspect of UroA activity, as it appears to act at both the bacterial and host levels to protect against CDI-induced colitis pathogenesis. This research sheds light on a promising avenue for the development of novel treatments for C. difficile infection.IMPORTANCETherapy for Clostridioides difficile infections includes the use of antibiotics, immunosuppressors, and fecal microbiota transplantation. However, these treatments have several drawbacks, including the loss of colonization resistance, the promotion of autoimmune disorders, and the potential for unknown pathogens in donor samples. To date, the potential benefits of microbial metabolites in CDI-induced colitis have not been fully investigated. Here, we report for the first time that the microbial metabolite urolithin A has the potential to block toxin production from C. difficile and enhance gut barrier function to mitigate CDI-induced colitis.
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Affiliation(s)
- Sweta Ghosh
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky, USA
- UofL-Brown Cancer Center, Louisville, Kentucky, USA
| | - Daniel Erickson
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky, USA
| | - Michelle J. Chua
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky, USA
| | - James Collins
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky, USA
- Center for Predictive Medicine, University of Louisville, Louisville, Kentucky, USA
- Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, Kentucky, USA
| | - Venkatakrishna Rao Jala
- Department of Microbiology and Immunology, University of Louisville, Louisville, Kentucky, USA
- UofL-Brown Cancer Center, Louisville, Kentucky, USA
- Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, Kentucky, USA
- Center for Integrative Environmental Health Sciences, University of Louisville, Louisville, Kentucky, USA
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22
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El Tekle G, Andreeva N, Garrett WS. The Role of the Microbiome in the Etiopathogenesis of Colon Cancer. Annu Rev Physiol 2024; 86:453-478. [PMID: 38345904 DOI: 10.1146/annurev-physiol-042022-025619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Studies in preclinical models support that the gut microbiota play a critical role in the development and progression of colorectal cancer (CRC). Specific microbial species and their corresponding virulence factors or associated small molecules can contribute to CRC development and progression either via direct effects on the neoplastic transformation of epithelial cells or through interactions with the host immune system. Induction of DNA damage, activation of Wnt/β-catenin and NF-κB proinflammatory pathways, and alteration of the nutrient's availability and the metabolic activity of cancer cells are the main mechanisms by which the microbiota contribute to CRC. Within the tumor microenvironment, the gut microbiota alter the recruitment, activation, and function of various immune cells, such as T cells, macrophages, and dendritic cells. Additionally, the microbiota shape the function and composition of cancer-associated fibroblasts and extracellular matrix components, fashioning an immunosuppressive and pro-tumorigenic niche for CRC. Understanding the complex interplay between gut microbiota and tumorigenesis can provide therapeutic opportunities for the prevention and treatment of CRC.
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Affiliation(s)
- Geniver El Tekle
- Department of Immunology and Infectious Diseases and Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
- The Harvard Chan Microbiome in Public Health Center, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Boston, Massachusetts, USA
| | - Natalia Andreeva
- Department of Immunology and Infectious Diseases and Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
- The Harvard Chan Microbiome in Public Health Center, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- David H. Koch Institute for Integrative Cancer Research at MIT, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Wendy S Garrett
- Department of Immunology and Infectious Diseases and Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
- The Harvard Chan Microbiome in Public Health Center, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
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23
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Guan Y, Tang G, Li L, Shu J, Zhao Y, Huang L, Tang J. Herbal medicine and gut microbiota: exploring untapped therapeutic potential in neurodegenerative disease management. Arch Pharm Res 2024; 47:146-164. [PMID: 38225532 PMCID: PMC10830735 DOI: 10.1007/s12272-023-01484-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 12/29/2023] [Indexed: 01/17/2024]
Abstract
The gut microbiota that exists in the human gastrointestinal tract is incredibly important for the maintenance of general health as it contributes to multiple aspects of host physiology. Recent research has revealed a dynamic connection between the gut microbiota and the central nervous system, that can influence neurodegenerative diseases (NDs). Indeed, imbalances in the gut microbiota, or dysbiosis, play a vital role in the pathogenesis and progression of human diseases, particularly NDs. Herbal medicine has been used for centuries to treat human diseases, including NDs. These compounds help to relieve symptoms and delay the progression of NDs by improving intestinal barrier function, reducing neuroinflammation, and modulating neurotransmitter production. Notably, herbal medicine can mitigate the progression of NDs by regulating the gut microbiota. Therefore, an in-depth understanding of the potential mechanisms by which herbal medicine regulates the gut microbiota in the treatment of NDs can help explain the pathogenesis of NDs from a novel perspective and propose novel therapeutic strategies for NDs. In this review, we investigate the potential neuroprotective effects of herbal medicine, focusing on its ability to regulate the gut microbiota and restore homeostasis. We also highlight the challenges and future research priorities of the integration of herbal medicine and modern medicine. As the global population ages, access to this information is becoming increasingly important for developing effective treatments for these diseases.
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Affiliation(s)
- Yueyue Guan
- Department of Brain Disease, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China
| | - Guohua Tang
- Department of Brain Disease, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China
| | - Lei Li
- Department of Anorectal Surgery, Hospital of Chengdu University of Traditional Chinese Medicine and Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, China
| | - Jianzhong Shu
- Department of Brain Disease, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China
| | - Yuhua Zhao
- Department of Brain Disease, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China
| | - Li Huang
- Department of Brain Disease, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China.
| | - Jun Tang
- Department of Brain Disease, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China.
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24
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Gerrick ER, Zlitni S, West PT, Carter MM, Mechler CM, Olm MR, Caffrey EB, Li JA, Higginbottom SK, Severyn CJ, Kracke F, Spormann AM, Sonnenburg JL, Bhatt AS, Howitt MR. Metabolic diversity in commensal protists regulates intestinal immunity and trans-kingdom competition. Cell 2024; 187:62-78.e20. [PMID: 38096822 DOI: 10.1016/j.cell.2023.11.018] [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: 08/26/2022] [Revised: 08/01/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024]
Abstract
The microbiota influences intestinal health and physiology, yet the contributions of commensal protists to the gut environment have been largely overlooked. Here, we discover human- and rodent-associated parabasalid protists, revealing substantial diversity and prevalence in nonindustrialized human populations. Genomic and metabolomic analyses of murine parabasalids from the genus Tritrichomonas revealed species-level differences in excretion of the metabolite succinate, which results in distinct small intestinal immune responses. Metabolic differences between Tritrichomonas species also determine their ecological niche within the microbiota. By manipulating dietary fibers and developing in vitro protist culture, we show that different Tritrichomonas species prefer dietary polysaccharides or mucus glycans. These polysaccharide preferences drive trans-kingdom competition with specific commensal bacteria, which affects intestinal immunity in a diet-dependent manner. Our findings reveal unappreciated diversity in commensal parabasalids, elucidate differences in commensal protist metabolism, and suggest how dietary interventions could regulate their impact on gut health.
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Affiliation(s)
- Elias R Gerrick
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Soumaya Zlitni
- Department of Genetics, Stanford University, Stanford, CA 94305, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Patrick T West
- Department of Genetics, Stanford University, Stanford, CA 94305, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Matthew M Carter
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Claire M Mechler
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Matthew R Olm
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Elisa B Caffrey
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jessica A Li
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Steven K Higginbottom
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Christopher J Severyn
- Department of Genetics, Stanford University, Stanford, CA 94305, USA; Department of Pediatrics, Division of Hematology/Oncology/Stem Cell Transplant and Regenerative Medicine Stanford University, Palo Alto, CA 94305, USA
| | - Frauke Kracke
- Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA
| | - Alfred M Spormann
- Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA; Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Justin L Sonnenburg
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA; Chan Zuckerberg Biohub, San Francisco, CA 94158, USA
| | - Ami S Bhatt
- Department of Genetics, Stanford University, Stanford, CA 94305, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michael R Howitt
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.
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25
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Wagner A, Kapounková K, Struhár I. The relationship between the gut microbiome and resistance training: a rapid review. BMC Sports Sci Med Rehabil 2024; 16:4. [PMID: 38166998 PMCID: PMC10763211 DOI: 10.1186/s13102-023-00791-4] [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: 06/04/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024]
Abstract
The human gut microbiome is attracting increasing attention because of its overall effect on health. Several reviews have investigated the impact of physical activity on the gut microbiome; however, these predominantly concentrate on either endurance or a combination of physical activities. This study aims to describe the effect of resistance or strength training on the gut microbiome of a human population. This rapid review follows the guidelines of the Cochrane Rapid Reviews Guidance along with PRISMA. A review of the literature was carried out using articles indexed by PubMed, Scopus, and Web of Science published in the last 12 years. None of the seven studies included find significant change in the gut microbiome in terms of bacterial taxa composition or overall diversity, though the results show that resistance training might decrease the zonulin level and increase mucin production and thereby reduce inflammation in the gut. Interestingly, two studies point to a gut-muscle axis connection and this is discussed in our paper. However, due to the small number of existing studies and certain methodological disagreements, it was hard to find a consensus on the relationship between the gut microbiome and resistance training.
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Affiliation(s)
- Adam Wagner
- Department of Sport Performance and Exercise Testing Promotion, Faculty of Sport Studies, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
| | - Kateřina Kapounková
- Department of Physical Activities and Health Sciences, Faculty of Sport Studies, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Ivan Struhár
- Department of Physical Activities and Health Sciences, Faculty of Sport Studies, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
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26
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Zhu SJ, Ding Z. Association between gut microbiota and seven gastrointestinal diseases: A Mendelian randomized study. J Gene Med 2024; 26:e3623. [PMID: 37957025 DOI: 10.1002/jgm.3623] [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: 06/29/2023] [Revised: 09/25/2023] [Accepted: 10/16/2023] [Indexed: 11/21/2023] Open
Abstract
BACKGROUND Observational research has shed light on the ability of gut microbes to influence the onset and progression of gastrointestinal diseases. The causal relationships between specific gut microbiomes and various gastrointestinal conditions, however, remain unknown. METHODS We investigated the relationship between gut microbiota and seven specific gastrointestinal disorders using a robust two-sample Mendelian randomization (MR) approach. The inverse variance-weighted (IVW) method was used as the primary analysis tool in our study. Furthermore, we conducted multiple sensitivity analyses to strengthen the robustness of our findings and ensure the reliability of the IVW method. RESULTS Our research has discovered significant links between the composition of gut microbiota and a variety of gastrointestinal ailments. We found compelling links between 13 gut microbiota and fatty liver, four gut microbiota and cirrhosis, eight gut microbiota and hepatocellular carcinoma, four gut microbiota and cholelithiasis, 12 gut microbiota and acute pancreatitis, eight gut microbiota and chronic pancreatitis, and 11 gut microbiota and pancreatic cancer. These findings shed light on the intricate relationship between gut microbes and the emergence of these specific gastrointestinal conditions. CONCLUSIONS The findings of this extensive study not only validate the potential role of specific gut microbiota in gastrointestinal diseases, but also fill a critical gap in previous research. The discovery of these specific gut microbiota is a significant step forward because they may serve as novel and promising biomarkers for both the prevention and treatment of gastrointestinal conditions.
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Affiliation(s)
- Shuang Jing Zhu
- Hepatobiliary Surgery, Chaohu Hospital of Anhui Medical University, Hefei, China
| | - Zhen Ding
- Hepatobiliary Surgery, Chaohu Hospital of Anhui Medical University, Hefei, China
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27
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Moerings BG, Abbring S, Tomassen MM, Schols HA, Witkamp RF, van Norren K, Govers C, van Bergenhenegouwen J, Mes JJ. Rice-derived arabinoxylan fibers are particle size-dependent inducers of trained immunity in a human macrophage-intestinal epithelial cell co-culture model. Curr Res Food Sci 2023; 8:100666. [PMID: 38179220 PMCID: PMC10765302 DOI: 10.1016/j.crfs.2023.100666] [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: 08/31/2023] [Revised: 12/12/2023] [Accepted: 12/16/2023] [Indexed: 01/06/2024] Open
Abstract
Arabinoxylans have been identified for a wide range of purported health-promoting applications, primarily attributed to its immunomodulatory effects. Previously, we have reported the ability of arabinoxylans to induce non-specific memory in innate immune cells, commonly referred to as "trained innate immunity". In the present study, we investigated the effect of particle size on innate immune training and resilience in primary human macrophages as well as in a more physiologically relevant macrophage-intestinal epithelial cell co-culture model. We demonstrated that smaller (>45 & < 90 μm) compared to larger (>90 μm) particle size fractions of rice bran-derived arabinoxylan preparations have a higher enhancing effect on training and resilience in both models. Smaller particle size fractions elevated TNF-α production in primary macrophages and enhanced Dectin-1 receptor activation in reporter cell lines compared to larger particles. Responses were arabinoxylan source specific as only the rice-derived arabinoxylans showed these immune-supportive effects. This particle size-dependent induction of trained immunity was confirmed in the established co-culture model. These findings demonstrate the influence of particle size on the immunomodulatory potential of arabinoxylans, provide further insight into the structure-activity relationship, and offer new opportunities to optimize the immune-enhancing effects of these dietary fibers.
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Affiliation(s)
- Bart G.J. Moerings
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
- Wageningen Food and Biobased Research, Wageningen University & Research, Wageningen, the Netherlands
| | - Suzanne Abbring
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
- Wageningen Food and Biobased Research, Wageningen University & Research, Wageningen, the Netherlands
| | - Monic M.M. Tomassen
- Wageningen Food and Biobased Research, Wageningen University & Research, Wageningen, the Netherlands
| | - Henk A. Schols
- Laboratory of Food Chemistry, Wageningen University & Research, Wageningen, the Netherlands
| | - Renger F. Witkamp
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
| | - Klaske van Norren
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
| | - Coen Govers
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, the Netherlands
| | | | - Jurriaan J. Mes
- Wageningen Food and Biobased Research, Wageningen University & Research, Wageningen, the Netherlands
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28
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Xu F, Chen Z, Xie L, Yang S, Li Y, Wu J, Wu Y, Li S, Zhang X, Ma Y, Liu Y, Zeng A, Xu Z. Lactobacillus plantarum ST-III culture supernatant protects against acute alcohol-induced liver and intestinal injury. Aging (Albany NY) 2023; 16:2077-2089. [PMID: 38126998 PMCID: PMC10911357 DOI: 10.18632/aging.205331] [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: 07/18/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023]
Abstract
The beneficial effects of probiotics have been studied in inflammatory bowel disease, nonalcoholic steatohepatitis, and alcoholic liver disease (ALD). Probiotic supplements are safer and more effective; however, their potential mechanisms are unclear. An objective of the current study was to examine the effects of extracellular products of Lactobacillus plantarum on acute alcoholic liver injury. Mice on a standard chow diet were supplemented with Lactobacillus plantarum ST-III culture supernatant (LP-cs) for two weeks and administered alcohol at 6 g/kg body weight by gavage. Alcohol-induced liver injury was assessed by measuring plasma alanine aminotransferase activity levels and triglyceride content determined liver steatosis. Intestinal damage and tight junctions were assessed using histochemical staining. LP-cs significantly inhibited alcohol-induced fat accumulation, inflammation, and apoptosis by inhibiting oxidative stress and endoplasmic reticulum stress. LP-cs significantly inhibited alcohol-induced intestinal injury and endotoxemia. These findings suggest that LP-cs alleviates acute alcohol-induced liver damage by inhibiting oxidative stress and endoplasmic reticulum stress via one mechanism and suppressing alcohol-induced increased intestinal permeability and endotoxemia via another mechanism. LP-cs supplements are a novel strategy for ALD prevention and treatment.
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Affiliation(s)
- Feng Xu
- Department of Gastroenterology, Ningbo Medical Center Li Huili Hospital, The Affiliated Hospital of Ningbo University, Ningbo 315000, China
| | - Zengqiang Chen
- Healthcare Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Longteng Xie
- Department of Infection Diseases, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo 315700, China
| | - Shizhuo Yang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yuying Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
- Ruian People's Hospital, Wenzhou Medical College Affiliated Third Hospital, Wenzhou 325200, China
| | - Junnan Wu
- School of Mental Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Yuyu Wu
- School of Mental Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Siyuan Li
- School of Mental Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Xie Zhang
- Department of Pharmacy, Ningbo Medical Center Li Huili Hospital, The Affiliated Hospital of Ningbo University, Ningbo 315000, China
| | - Yanyan Ma
- Department of Gastroenterology, Ningbo Medical Center Li Huili Hospital, The Affiliated Hospital of Ningbo University, Ningbo 315000, China
| | - Yanlong Liu
- School of Mental Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Aibing Zeng
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Zeping Xu
- Department of Pharmacy, Ningbo Medical Center Li Huili Hospital, The Affiliated Hospital of Ningbo University, Ningbo 315000, China
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29
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Bartsch M, Hahn A, Berkemeyer S. Bridging the Gap from Enterotypes to Personalized Dietary Recommendations: A Metabolomics Perspective on Microbiome Research. Metabolites 2023; 13:1182. [PMID: 38132864 PMCID: PMC10744656 DOI: 10.3390/metabo13121182] [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: 10/31/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023] Open
Abstract
Advances in high-throughput DNA sequencing have propelled research into the human microbiome and its link to metabolic health. We explore microbiome analysis methods, specifically emphasizing metabolomics, how dietary choices impact the production of microbial metabolites, providing an overview of studies examining the connection between enterotypes and diet, and thus, improvement of personalized dietary recommendations. Acetate, propionate, and butyrate constitute more than 95% of the collective pool of short-chain fatty acids. Conflicting data on acetate's effects may result from its dynamic signaling, which can vary depending on physiological conditions and metabolic phenotypes. Human studies suggest that propionate has overall anti-obesity effects due to its well-documented chemistry, cellular signaling mechanisms, and various clinical benefits. Butyrate, similar to propionate, has the ability to reduce obesity by stimulating the release of appetite-suppressing hormones and promoting the synthesis of leptin. Tryptophan affects systemic hormone secretion, with indole stimulating the release of GLP-1, which impacts insulin secretion, appetite suppression, and gastric emptying. Bile acids, synthesized from cholesterol in the liver and subsequently modified by gut bacteria, play an essential role in the digestion and absorption of dietary fats and fat-soluble vitamins, but they also interact directly with intestinal microbiota and their metabolites. One study using statistical methods identified primarily two groupings of enterotypes Bacteroides and Ruminococcus. The Prevotella-dominated enterotype, P-type, in humans correlates with vegetarians, high-fiber and carbohydrate-rich diets, and traditional diets. Conversely, individuals who consume diets rich in animal fats and proteins, typical in Western-style diets, often exhibit the Bacteroides-dominated, B-type, enterotype. The P-type showcases efficient hydrolytic enzymes for plant fiber degradation but has limited lipid and protein fermentation capacity. Conversely, the B-type features specialized enzymes tailored for the degradation of animal-derived carbohydrates and proteins, showcasing an enhanced saccharolytic and proteolytic potential. Generally, models excel at predictions but often struggle to fully elucidate why certain substances yield varied responses. These studies provide valuable insights into the potential for personalized dietary recommendations based on enterotypes.
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Affiliation(s)
- Madeline Bartsch
- NutritionLab, Faculty of Agricultural Sciences and Landscape Architecture, Osnabrueck University of Applied Sciences, Am Kruempel 31, 49090 Osnabrueck, Germany;
- Institute of Food Science and Human Nutrition, Leibniz University Hannover, 30167 Hannover, Germany;
| | - Andreas Hahn
- Institute of Food Science and Human Nutrition, Leibniz University Hannover, 30167 Hannover, Germany;
| | - Shoma Berkemeyer
- NutritionLab, Faculty of Agricultural Sciences and Landscape Architecture, Osnabrueck University of Applied Sciences, Am Kruempel 31, 49090 Osnabrueck, Germany;
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30
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Phuna ZX, Madhavan P. A reappraisal on amyloid cascade hypothesis: the role of chronic infection in Alzheimer's disease. Int J Neurosci 2023; 133:1071-1089. [PMID: 35282779 DOI: 10.1080/00207454.2022.2045290] [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: 09/01/2020] [Accepted: 02/09/2022] [Indexed: 10/18/2022]
Abstract
Alzheimer disease (AD) is a progressive neurological disorder that accounted for the most common cause of dementia in the elderly population. Lately, 'infection hypothesis' has been proposed where the infection of microbes can lead to the pathogenesis of AD. Among different types of microbes, human immunodeficiency virus-1 (HIV-1), herpes simplex virus-1 (HSV-1), Chlamydia pneumonia, Spirochetes and Candida albicans are frequently detected in the brain of AD patients. Amyloid-beta protein has demonstrated to exhibit antimicrobial properties upon encountering these pathogens. It can bind to microglial cells and astrocytes to activate immune response and neuroinflammation. Nevertheless, HIV-1 and HSV-1 can develop into latency whereas Chlamydia pneumonia, Spirochetes and Candida albicans can cause chronic infections. At this stage, the DNA of microbes remains undetectable yet active. This can act as the prolonged pathogenic stimulus that over-triggers the expression of Aβ-related genes, which subsequently lead to overproduction and deposition of Aβ plaque. This review will highlight the pathogenesis of each of the stated microbial infection, their association in AD pathogenesis as well as the effect of chronic infection in AD progression. Potential therapies for AD by modulating the microbiome have also been suggested. This review will aid in understanding the infectious manifestations of AD.
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Affiliation(s)
- Zhi Xin Phuna
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Selangor, Malaysia
| | - Priya Madhavan
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Selangor, Malaysia
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31
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Wang Y, Ma W, Mehta R, Nguyen LH, Song M, Drew DA, Asnicar F, Huttenhower C, Segata N, Wolf J, Spector T, Berry S, Staller K, Chan AT. Diet and gut microbial associations in irritable bowel syndrome according to disease subtype. Gut Microbes 2023; 15:2262130. [PMID: 37786251 PMCID: PMC10549191 DOI: 10.1080/19490976.2023.2262130] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/15/2023] [Indexed: 10/04/2023] Open
Abstract
The role of diet and the gut microbiome in the etiopathogenesis of irritable bowel syndrome (IBS) is not fully understood. Therefore, we investigated the interplay between dietary risk factors and gut microbiota in IBS subtypes using a food frequency questionnaire and stool metagenome data from 969 participants aged 18-65 years in the ZOE PREDICT 1 study, an intervention study designed to predict postprandial metabolic responses. We identified individuals with IBS subtype according to the Rome III criteria based on predominant bowel habits during symptom onset: diarrhea (i.e. looser), constipation (i.e. harder), and mixed. Participants with IBS-D (n = 59) consumed more healthy plant-based foods (e.g. whole grains, leafy vegetables) and fiber, while those with IBS-C (n = 49) tended to consume more unhealthy plant-based foods (e.g. refined grains, fruit juice) than participants without IBS (n = 797). Microbial diversity was nominally lower in patients with IBS-D than in participants without IBS or with IBS-C. Using multivariable-adjusted linear regression, we identified specific microbiota variations in IBS subtypes, including slight increases in pro-inflammatory taxa in IBS-C (e.g. Escherichia coli) and loss of strict anaerobes in IBS-D (e.g. Faecalibacterium prausnitzii). Our analysis also revealed intriguing evidence of interactions between diet and Faecalibacterium prausnitzii. The positive associations between fiber and iron intake and IBS-diarrhea were stronger among individuals with a higher relative abundance of Faecalibacterium prausnitzii, potentially driven by carbohydrate metabolic pathways, including the superpathway of β-D-glucuronide and D-glucuronate degradation. In conclusion, our findings suggest subtype-specific variations in dietary habits, gut microbial composition and function, and diet-microbiota interactions in IBS, providing insights into potential microbiome-informed dietary interventions.
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Affiliation(s)
- Yiqing Wang
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Wenjie Ma
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Raaj Mehta
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Long H. Nguyen
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Mingyang Song
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, USA
| | - David A. Drew
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Francesco Asnicar
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
| | - Curtis Huttenhower
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Nicola Segata
- Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, Italy
- European Institute of Oncology Scientific Institute for Research, Hospitalization and Healthcare, Milan, Italy
| | | | - Tim Spector
- Department of Twin Research, King’s College London, London, UK
| | - Sarah Berry
- Department of Nutritional Sciences, King’s College London, London, UK
| | - Kyle Staller
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Andrew T. Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, 677 Huntington Avenue, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, USA
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Gellman RH, Olm MR, Terrapon N, Enam F, Higginbottom SK, Sonnenburg JL, Sonnenburg ED. Hadza Prevotella require diet-derived microbiota-accessible carbohydrates to persist in mice. Cell Rep 2023; 42:113233. [PMID: 38510311 PMCID: PMC10954246 DOI: 10.1016/j.celrep.2023.113233] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Abstract
Industrialization has transformed the gut microbiota, reducing the prevalence of Prevotella relative to Bacteroides. Here, we isolate Bacteroides and Prevotella strains from the microbiota of Hadza hunter-gatherers in Tanzania, a population with high levels of Prevotella. We demonstrate that plant-derived microbiota-accessible carbohydrates (MACs) are required for persistence of Prevotella copri but not Bacteroides thetaiotaomicron in vivo. Differences in carbohydrate metabolism gene content, expression, and in vitro growth reveal that Hadza Prevotella strains specialize in degrading plant carbohydrates, while Hadza Bacteroides isolates use both plant and host-derived carbohydrates, a difference mirrored in Bacteroides from non-Hadza populations. When competing directly, P. copri requires plant-derived MACs to maintain colonization in the presence of B. thetaiotaomicron, as a no-MAC diet eliminates P. copri colonization. Prevotella's reliance on plant-derived MACs and Bacteroides' ability to use host mucus carbohydrates could explain the reduced prevalence of Prevotella in populations consuming a low-MAC, industrialized diet.
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Affiliation(s)
- Rebecca H. Gellman
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Matthew R. Olm
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Nicolas Terrapon
- Architecture et Fonction des Macromolé cules Biologiques, INRAE, CNRS, Aix-Marseille Université, Marseille, France
| | - Fatima Enam
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Steven K. Higginbottom
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Justin L. Sonnenburg
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Center for Human Microbiome Studies, Stanford University School of Medicine, Stanford, CA, USA
| | - Erica D. Sonnenburg
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
- Center for Human Microbiome Studies, Stanford University School of Medicine, Stanford, CA, USA
- Lead contact
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Wallen-Russell C, Pearlman N, Wallen-Russell S, Cretoiu D, Thompson DC, Voinea SC. A Catastrophic Biodiversity Loss in the Environment Is Being Replicated on the Skin Microbiome: Is This a Major Contributor to the Chronic Disease Epidemic? Microorganisms 2023; 11:2784. [PMID: 38004795 PMCID: PMC10672968 DOI: 10.3390/microorganisms11112784] [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: 08/30/2023] [Revised: 10/16/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
There has been a catastrophic loss of biodiversity in ecosystems across the world. A similar crisis has been observed in the human gut microbiome, which has been linked to "all human diseases affecting westernized countries". This is of great importance because chronic diseases are the leading cause of death worldwide and make up 90% of America's healthcare costs. Disease development is complex and multifactorial, but there is one part of the body's interlinked ecosystem that is often overlooked in discussions about whole-body health, and that is the skin microbiome. This is despite it being a crucial part of the immune, endocrine, and nervous systems and being continuously exposed to environmental stressors. Here we show that a parallel biodiversity loss of 30-84% has occurred on the skin of people in the developed world compared to our ancestors. Research has shown that dysbiosis of the skin microbiome has been linked to many common skin diseases and, more recently, that it could even play an active role in the development of a growing number of whole-body health problems, such as food allergies, asthma, cardiovascular diseases, and Parkinson's, traditionally thought unrelated to the skin. Damaged skin is now known to induce systemic inflammation, which is involved in many chronic diseases. We highlight that biodiversity loss is not only a common finding in dysbiotic ecosystems but also a type of dysbiosis. As a result, we make the case that biodiversity loss in the skin microbiome is a major contributor to the chronic disease epidemic. The link between biodiversity loss and dysbiosis forms the basis of this paper's focus on the subject. The key to understanding why biodiversity loss creates an unhealthy system could be highlighted by complex physics. We introduce entropy to help understand why biodiversity has been linked with ecosystem health and stability. Meanwhile, we also introduce ecosystems as being governed by "non-linear physics" principles-including chaos theory-which suggests that every individual part of any system is intrinsically linked and implies any disruption to a small part of the system (skin) could have a significant and unknown effect on overall system health (whole-body health). Recognizing the link between ecosystem health and human health allows us to understand how crucial it could be to maintain biodiversity across systems everywhere, from the macro-environment we inhabit right down to our body's microbiome. Further, in-depth research is needed so we can aid in the treatment of chronic diseases and potentially change how we think about our health. With millions of people currently suffering, research to help mitigate the crisis is of vital importance.
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Affiliation(s)
| | - Nancy Pearlman
- Ecology Center of Southern California, Los Angeles, CA 90035, USA;
| | | | - Dragos Cretoiu
- Department of Medical Genetics, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 011062 Bucharest, Romania
| | - Dana Claudia Thompson
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 011062 Bucharest, Romania
| | - Silviu Cristian Voinea
- Department of Surgical Oncology, Prof. Dr. Al. Trestioreanu Oncology Institute, Carol Davila University of Medicine and Pharmacy, 022328 Bucharest, Romania
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Mancilla VJ, Braden-Kuhle PN, Brice KN, Mann AE, Williams MT, Zhang Y, Chumley MJ, Barber RC, White SN, Boehm GW, Allen MS. A Synthetic Formula Amino Acid Diet Leads to Microbiome Dysbiosis, Reduced Colon Length, Inflammation, and Altered Locomotor Activity in C57BL/6J Mice. Microorganisms 2023; 11:2694. [PMID: 38004705 PMCID: PMC10673175 DOI: 10.3390/microorganisms11112694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/23/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
The effects of synthetic, free-amino acid diets, similar to those prescribed as supplements for (phenylketonuria) PKU patients, on gut microbiota and overall health are not well understood. In the current, multidisciplinary study, we examined the effects of a synthetically-derived, low-fiber, amino acid diet on behavior, cognition, gut microbiome composition, and inflammatory markers. A cohort of 20 male C57BL/6J mice were randomly assigned to either a standard or synthetic diet (n = 10) at post-natal day 21 and maintained for 13 weeks. Sequencing of the 16S rRNA gene from fecal samples revealed decreased bacterial diversity, increased abundance of bacteria associated with disease, such as Prevotella, and a downward shift in gut microbiota associated with fermentation pathways in the synthetic diet group. Furthermore, there were decreased levels of short chain fatty acids and shortening of the colon in mice consuming the synthetic diet. Finally, we measured TNF-α, IL-6, and IL-10 in serum, the hippocampus, and colon, and found that the synthetic diet significantly increased IL-6 production in the hippocampus. These results demonstrate the importance of a multidisciplinary approach to future diet and microbiome studies, as diet not only impacts the gut microbiome composition but potentially systemic health as well.
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Affiliation(s)
- Viviana J. Mancilla
- Department of Microbiology, Immunology, and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Paige N. Braden-Kuhle
- Department of Psychology, College of Science and Engineering, Texas Christian University, Fort Worth, TX 76109, USA
| | - Kelly N. Brice
- Department of Psychology, College of Science and Engineering, Texas Christian University, Fort Worth, TX 76109, USA
| | - Allison E. Mann
- Department of Microbiology, Immunology, and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
- Department of Biological Sciences, College of Science, Clemson University, Clemson, SC 29634, USA
| | - Megan T. Williams
- Department of Microbiology, Immunology, and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Yan Zhang
- Department of Microbiology, Immunology, and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Michael J. Chumley
- Department of Biology, College of Science and Engineering, Texas Christian University, Fort Worth, TX 76109, USA;
| | - Robert C. Barber
- Department of Pharmacology and Neuroscience, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Sabrina N. White
- Department of Microbiology, Immunology, and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Gary W. Boehm
- Department of Psychology, College of Science and Engineering, Texas Christian University, Fort Worth, TX 76109, USA
| | - Michael S. Allen
- Department of Microbiology, Immunology, and Genetics, School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
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35
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Faqerah N, Walker D, Gerasimidis K. Review article: The complex interplay between diet and Escherichia coli in inflammatory bowel disease. Aliment Pharmacol Ther 2023; 58:984-1004. [PMID: 37771255 DOI: 10.1111/apt.17720] [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: 12/03/2022] [Revised: 12/23/2022] [Accepted: 09/05/2023] [Indexed: 09/30/2023]
Abstract
BACKGROUND Although no causative microbe has been yet identified or successfully targeted in the treatment of inflammatory bowel disease (IBD), the role of Escherichia coli in the pathogenesis of Crohn's disease has attracted considerable interest. AIM In this review, we present a literature overview of the interactions between diet and E. coli and other Proteobacteria in the aetiology, outcomes and management of IBD and suggest future research directions. METHODS An extensive literature search was performed to identify in vitro studies and research in animal models that explored mechanisms by which dietary components can interact with E. coli or Proteobacteria to initiate or propagate gut inflammation. We also explored the effect diet and dietary therapies have on the levels of E. coli or Proteobacteria in patients with IBD. RESULTS Preclinical data suggest that the Western diet and its components influence the abundance, colonisation and phenotypic behaviour of E. coli in the gut, which may in turn initiate or contribute to gut inflammation. In contrast, the Mediterranean diet and specific dietary fibres may abrogate these effects and protect from inflammation. There are limited data from clinical trials, mostly from patients with Crohn's disease during treatment with exclusive enteral nutrition, with findings often challenging observations from preclinical research. Data from patients with ulcerative colitis are sparse. CONCLUSIONS Preclinical and some clinical trial data suggest that E. coli and other Proteobacteria interact with certain dietary components to promote gut inflammation. Well-designed clinical trials are required before dietary recommendations for disease management can be made.
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Affiliation(s)
- Nojoud Faqerah
- Human Nutrition, School of Medicine, Dentistry and Life Sciences, University of Glasgow, New Lister Building, Glasgow Royal Infirmary, Glasgow, UK
- School of Infection and Immunity, University of Glasgow, Glasgow, UK
- Microbiology, Rabigh Medical College, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Daniel Walker
- School of Infection and Immunity, University of Glasgow, Glasgow, UK
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Konstantinos Gerasimidis
- Human Nutrition, School of Medicine, Dentistry and Life Sciences, University of Glasgow, New Lister Building, Glasgow Royal Infirmary, Glasgow, UK
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36
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Akritidou T, Akkermans S, Smet C, Gaspari S, Sharma C, Matthews E, Van Impe JFM. Gut microbiota of the small intestine as an antimicrobial barrier against foodborne pathogens: Impact of diet on the survival of S. Typhimurium and L. monocytogenes during in vitro digestion. Food Res Int 2023; 173:113292. [PMID: 37803689 DOI: 10.1016/j.foodres.2023.113292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/14/2023] [Accepted: 07/16/2023] [Indexed: 10/08/2023]
Abstract
The human gastrointestinal tract employs an assortment of chemical, enzymatic and immune barriers to impede pathogen colonization. An essential component of these barriers is the gut microbiota, which infers protection against ingested pathogens through its colonization resistance mechanisms. Specifically, the gut microbiota of the distal small intestine (ileum) renders a crucial line of defense, given that this location is regarded as an important interaction site. This study aimed to evaluate the impact of the ileal microbiota on the survival of the foodborne pathogens Salmonella enterica serotype Typhimurium and Listeria monocytogenes, utilizing an in vitro digestion model system. Moreover, the effect of diet on the gut microbiota colonization resistance mechanisms was assessed, by comparing a healthy (high fiber/low sugar) and a western diet (low fiber/high sugar). For S. Typhimurium, the results revealed that the digestion of a healthy diet led to a similar inactivation compared to the western diet, with the values of total log reduction being 0.83 and 0.82 log(CFU), respectively; yet the lack of readily accessible nutrients in the healthy diet combined with the acidic shock during gastric digestion caused the induction of stress tolerance to the pathogen. This resulted in increased pathogen survival in the presence of gut microbiota, with S. Typhimurium proliferating during the ileal phase with a maximum specific growth rate of 0.16 1/h. On the contrary, for L. monocytogenes, the healthy diet was associated with a greater inactivation than the western diet (total log reduction values: 3.08 and 1.30 log(CFU), respectively), which appeared strongly influenced by the encounter of the pathogen with the gut microbiota. Regarding the latter, the species Escherichia coli and Bacteroides thetaiotaomicron appeared to be the most prevalent in most cases. Finally, it was also demonstrated that the ileal microbiota colonization resistance mechanisms largely relied on competitive responses. The obtained knowledge of this research can contribute to the development and/or complementation of defensive strategies against pathogen infection, while also underlining the value of in vitro approaches.
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Affiliation(s)
- Theodora Akritidou
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Simen Akkermans
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Cindy Smet
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Sotiria Gaspari
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Chahat Sharma
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Eimear Matthews
- Faculty of Biomolecular Science, Technological University Dublin, Ireland
| | - Jan F M Van Impe
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium.
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37
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Pinke Testa CAE, Rosa PS, de Castro TFN, Sartori MMP, Hippólito AG, Guimarães-Okamoto PTC, Melchert A. Intake and digestibility of two diets for nine-banded armadillos (Dasypus novemcinctus: Linnaeus, 1758) kept under human care. Zoo Biol 2023; 42:780-788. [PMID: 37584262 DOI: 10.1002/zoo.21799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 04/19/2023] [Accepted: 08/04/2023] [Indexed: 08/17/2023]
Abstract
The study aimed to evaluate metabolic parameters, nutrient intake, and absorption of two diets formulated for Dasypus novemcinctus armadillos under human care. Were studied two diets: D1-a diet with dry dog food, ground beef, and boiled chicken egg with shells; D2-a diet with the same ingredients as D1, with added banana and papaya. Both are mixed in water. The parameters analyzed were body weight (BW), weight gain (WG), maintenance energy requirement (MER), Lee index, biometrics, body condition score, glucose, triglycerides, total cholesterol, and cholesterol fractions for eight male armadillos. Dietary intake (DI) and efficiency, nutrient intake, metabolizable energy, and digestibility coefficient for the diets were evaluated in six male armadillos. The diet that included fruits showed higher BW, WG, MER, Lee index, and better glucose metabolism. Both diets promoted increases in WG and Lee Index, as well as improvements in glucose metabolism. The diet without fruit improved the lipid profile of the animals. D2 presented the highest DI, better dietary efficiency, and higher energy intake but also a lower crude fiber intake. However, it showed the best utilization of gross fiber and all other nutrients. In conclusion, the diets constituted an adequate nutritional option for captive armadillos and can be used in malnutrition and pathological processes recovery. Although both diets were adequate, the nonfruit diet was preferable due to the improved lipid profile.
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Affiliation(s)
| | | | | | | | - Alícia Giolo Hippólito
- Wild AnimalsPostgraduate, School of Veterinary Medicine and Animal Science, São Paulo State University-UNESP, Botucatu, São Paulo, Brazil
| | | | - Alessandra Melchert
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, São Paulo State University-UNESP, Botucatu, São Paulo, Brazil
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38
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Jo H, Kim BG. Effects of dietary fiber in gestating sow diets - A review. Anim Biosci 2023; 36:1619-1631. [PMID: 37641826 PMCID: PMC10623041 DOI: 10.5713/ab.23.0206] [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: 06/02/2023] [Revised: 07/12/2023] [Accepted: 08/12/2023] [Indexed: 08/31/2023] Open
Abstract
The objective of this review was to provide an overview of the effects of dietary fiber (DF) on reproductive performance in gestating sows. Dietary fibers have been suggested to modulate microbiota in the intestine and the immune system of gestating sows and to improve gut health. Thus, DF may help alleviate the adverse effects of the stressful production cycle of gestating sows. These benefits may subsequently result in improved reproductive performance of sows. Previous studies have reported changes in microbiota by providing gestating sows with DF, and the responses of microbiota varied depending on the source of DF. The responses by providing DF to gestating sows were inconsistent for antioxidative capacity, hormonal response, and inflammatory response among the studies. The effects of DF on reproductive performance were also inconsistent among the previous studies. Potential reasons contributing to these inconsistent results would include variability in reproductive performance data, insufficient replication, influence of other nutrients contained in the DF diets, characteristics of DF, and experimental periods. The present meta-analysis suggests that increasing the total DF concentration by 10 percentage units (e.g., 12% to 22% as-fed basis) in gestating sow diets compared to the control group improves the litter born alive by 0.49 pigs per litter. However, based on the present review, questions remain regarding the benefits of fibers in gestating sow diets. Further research is warranted to clarify the mode of action of fibers and the association with subsequent reproductive performance in gestating sows.
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Affiliation(s)
- Hyunwoong Jo
- Department of Animal Science and Technology, Konkuk University, Seoul 05029,
Korea
| | - Beob Gyun Kim
- Department of Animal Science and Technology, Konkuk University, Seoul 05029,
Korea
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39
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Royer CJ, Rodriguez-Marino N, Yaceczko MD, Rivera-Rodriguez DE, Ziegler TR, Cervantes-Barragan L. Low dietary fiber intake impairs small intestinal Th17 and intraepithelial T cell development over generations. Cell Rep 2023; 42:113140. [PMID: 37768824 PMCID: PMC10765424 DOI: 10.1016/j.celrep.2023.113140] [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: 08/05/2022] [Revised: 07/10/2023] [Accepted: 08/30/2023] [Indexed: 09/30/2023] Open
Abstract
Dietary fiber strongly impacts the microbiota. Here, we show that a low-fiber diet changes the small intestinal (SI) microbiota and impairs SI Th17, TCRαβ+CD8αβ+ and TCRαβ+CD8αα+ intraepithelial T cell development. We restore T cell development with dietary fiber supplementation, but this defect becomes persistent over generations with constant low-fiber diets. Offspring of low-fiber diet-fed mice have reduced SI T cells even after receiving a fiber-rich diet due to loss of bacteria important for T cell development. In these mice, only a microbiota transplant from a fiber-rich diet-fed mouse and a fiber-rich diet can restore T cell development. Low-fiber diets reduce segmented filamentous bacteria (SFB) abundance, impairing its vertical transmission. SFB colonization and a fiber-rich diet partially restore T cell development. Finally, we observe that low-fiber diet-induced T cell defects render mice more susceptible to Citrobacter rodentium infection. Together, these results demonstrate the importance of fiber to microbiota vertical transmission and host immune system development.
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Affiliation(s)
- Charlotte J Royer
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Naomi Rodriguez-Marino
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Madelyn D Yaceczko
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Dormarie E Rivera-Rodriguez
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322, USA; Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Thomas R Ziegler
- Division of Endocrinology, Metabolism, and Lipids and Center for Clinical and Molecular Nutrition, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Luisa Cervantes-Barragan
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322, USA.
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40
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Tian S, Chu Q, Ma S, Ma H, Song H. Dietary Fiber and Its Potential Role in Obesity: A Focus on Modulating the Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:14853-14869. [PMID: 37815013 DOI: 10.1021/acs.jafc.3c03923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Dietary fiber is a carbohydrate polymer with ten or more monomeric units that are resistant to digestion by human digestive enzymes, and it has gained widespread attention due to its significant role in health improvement through regulating gut microbiota. In this review, we summarized the interaction between dietary fiber, gut microbiota, and obesity, and the beneficial effects of dietary fiber on obesity through the modulation of microbiota, such as modifying selective microbial composition, producing starch-degrading enzymes, improving gut barrier function, reducing the inflammatory response, reducing trimethylamine N-oxide, and promoting the production of gut microbial metabolites (e.g., short chain fatty acids, bile acids, ferulic acid, and succinate). In addition, factors affecting the gut microbiota composition and metabolites by dietary fiber (length of the chain, monosaccharide composition, glycosidic bonds) were also concluded. Moreover, strategies for enhancing the biological activity of dietary fiber (fermentation technology, ultrasonic modification, nanotechnology, and microfluidization) were subsequently discussed. This review may provide clues for deeply exploring the structure-activity relationship between dietary fiber and antiobesity properties by targeting specific gut microbiota.
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Affiliation(s)
- Shuhua Tian
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Qiang Chu
- Tea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, PR China
| | - Shaotong Ma
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Huan Ma
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Haizhao Song
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
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Pedroza Matute S, Iyavoo S. Exploring the gut microbiota: lifestyle choices, disease associations, and personal genomics. Front Nutr 2023; 10:1225120. [PMID: 37867494 PMCID: PMC10585655 DOI: 10.3389/fnut.2023.1225120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/19/2023] [Indexed: 10/24/2023] Open
Abstract
The gut microbiota is a rich and dynamic ecosystem that actively interacts with the human body, playing a significant role in the state of health and disease of the host. Diet, exercise, mental health, and other factors have exhibited the ability to influence the gut bacterial composition, leading to changes that can prevent and improve, or favor and worsen, both intestinal and extra-intestinal conditions. Altered gut microbial states, or 'dysbiosis', associated with conditions and diseases are often characterized by shifts in bacterial abundance and diversity, including an impaired Firmicutes to Bacteroidetes ratio. By understanding the effect of lifestyle on the gut microbiota, personalized advice can be generated to suit each individual profile and foster the adoption of lifestyle changes that can both prevent and ameliorate dysbiosis. The delivery of effective and reliable advice, however, depends not only on the available research and current understanding of the topic, but also on the methods used to assess individuals and to discover the associations, which can introduce bias at multiple stages. The aim of this review is to summarize how human gut microbial variability is defined and what lifestyle choices and diseases have shown association with gut bacterial composition. Furthermore, popular methods to investigate the human gut microbiota are outlined, with a focus on the possible bias caused by the lack of use of standardized methods. Finally, an overview of the current state of personalized advice based on gut microbiota testing is presented, underlining its power and limitations.
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Affiliation(s)
| | - Sasitaran Iyavoo
- Nkaarco Diagnostics Limited, Norwich, United Kingdom
- School of Chemistry, College of Health and Science, University of Lincoln, Lincoln, United Kingdom
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Handsley-Davis M, Anderson MZ, Bader AC, Ehau-Taumaunu H, Fox K, Kowal E, Weyrich LS. Microbiome ownership for Indigenous peoples. Nat Microbiol 2023; 8:1777-1786. [PMID: 37770744 DOI: 10.1038/s41564-023-01470-3] [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: 11/18/2022] [Accepted: 08/11/2023] [Indexed: 09/30/2023]
Abstract
Several studies have reported increased microbial diversity, or distinct microbial community compositions, in the microbiomes of Indigenous peoples around the world. However, there is a widespread failure to include Indigenous cultures and perspectives in microbiome research programmes, and ethical issues pertaining to microbiome research involving Indigenous participants have not received enough attention. We discuss the benefits and risks arising from microbiome research involving Indigenous peoples and analyse microbiome ownership as an ethical concept in this context. We argue that microbiome ownership represents an opportunity for Indigenous peoples to steward and protect their resident microbial communities at every stage of research.
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Affiliation(s)
- Matilda Handsley-Davis
- School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia
- ARC Centre of Excellence for Australian Biodiversity and Heritage, University of Wollongong, Wollongong, New South Wales, Australia
| | - Matthew Z Anderson
- Department of Microbiology, The Ohio State University, Columbus, OH, USA
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA
- Center for Genomic Science Innovation, University of Wisconsin-Madison, Madison, WI, USA
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI, USA
| | - Alyssa C Bader
- Department of Anthropology, McGill University, Montreal, Quebec, Canada
| | - Hanareia Ehau-Taumaunu
- Department of Plant Pathology and Environmental Microbiology, The Pennsylvania State University, State College, PA, USA
| | - Keolu Fox
- Department of Anthropology, Global Health Program, and Indigenous Futures Institute, University of California, San Diego, CA, USA
| | - Emma Kowal
- ARC Centre of Excellence for Australian Biodiversity and Heritage, University of Wollongong, Wollongong, New South Wales, Australia
- Alfred Deakin Institute for Citizenship and Globalisation, Deakin University, Melbourne, Victoria, Australia
| | - Laura S Weyrich
- School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
- ARC Centre of Excellence for Australian Biodiversity and Heritage, University of Wollongong, Wollongong, New South Wales, Australia.
- Department of Anthropology and Huck Institutes of Life Sciences, The Pennsylvania State University, State College, PA, USA.
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43
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Lim EY, Song EJ, Shin HS. Gut Microbiome as a Possible Cause of Occurrence and Therapeutic Target in Chronic Obstructive Pulmonary Disease. J Microbiol Biotechnol 2023; 33:1111-1118. [PMID: 37164760 PMCID: PMC10580882 DOI: 10.4014/jmb.2301.01033] [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: 01/26/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 05/12/2023]
Abstract
As a long-term condition that affects the airways and lungs, chronic obstructive pulmonary disease (COPD) is characterized by inflammation, emphysema, breathlessness, chronic cough, and sputum production. Currently, the bronchodilators and anti-inflammatory drugs prescribed for COPD are mostly off-target, warranting new disease management strategies. Accumulating research has revealed the gut-lung axis to be a bidirectional communication system. Cigarette smoke, a major exacerbating factor in COPD and lung inflammation, affects gut microbiota composition and diversity, causing gut microbiota dysbiosis, a condition that has recently been described in COPD patients and animal models. For this review, we focused on the gut-lung axis, which is influenced by gut microbial metabolites, bacterial translocation, and immune cell modulation. Further, we have summarized the findings of preclinical and clinical studies on the association between gut microbiota and COPD to provide a basis for using gut microbiota in therapeutic strategies against COPD. Our review also proposes that further research on probiotics, prebiotics, short-chain fatty acids, and fecal microbiota transplantation could assist therapeutic approaches targeting the gut microbiota to alleviate COPD.
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Affiliation(s)
- Eun Yeong Lim
- Food Functionality Research Division, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Eun-Ji Song
- Food Functionality Research Division, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Hee Soon Shin
- Food Functionality Research Division, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
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O’Reilly C, Mills S, Rea MC, Lavelle A, Ghosh S, Hill C, Ross RP. Interplay between inflammatory bowel disease therapeutics and the gut microbiome reveals opportunities for novel treatment approaches. MICROBIOME RESEARCH REPORTS 2023; 2:35. [PMID: 37849974 PMCID: PMC7615213 DOI: 10.20517/mrr.2023.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/19/2023]
Abstract
Inflammatory bowel disease (IBD) is a complex heterogeneous disorder defined by recurring chronic inflammation of the gastrointestinal tract, attributed to a combination of factors including genetic susceptibility, altered immune response, a shift in microbial composition/microbial insults (infection/exposure), and environmental influences. Therapeutics generally used to treat IBD mainly focus on the immune response and include non-specific anti-inflammatory and immunosuppressive therapeutics and targeted therapeutics aimed at specific components of the immune system. Other therapies include exclusive enteral nutrition and emerging stem cell therapies. However, in recent years, scientists have begun to examine the interplay between these therapeutics and the gut microbiome, and we present this information here. Many of these therapeutics are associated with alterations to gut microbiome composition and functionality, often driving it toward a "healthier profile" and preclinical studies have revealed that such alterations can play an important role in therapeutic efficacy. The gut microbiome can also improve or hinder IBD therapeutic efficacy or generate undesirable metabolites. For certain IBD therapeutics, the microbiome composition, particularly before treatment, may serve as a biomarker of therapeutic efficacy. Utilising this information and manipulating the interactions between the gut microbiome and IBD therapeutics may enhance treatment outcomes in the future and bring about new opportunities for personalised, precision medicine.
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Affiliation(s)
- Catherine O’Reilly
- Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork P61C996, Ireland
- Microbiology Department, University College Cork, Co. Cork T12TP07, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
- Authors contributed equally
| | - Susan Mills
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
- Authors contributed equally
| | - Mary C. Rea
- Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork P61C996, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - Aonghus Lavelle
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - Subrata Ghosh
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - Colin Hill
- Microbiology Department, University College Cork, Co. Cork T12TP07, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
| | - R. Paul Ross
- Microbiology Department, University College Cork, Co. Cork T12TP07, Ireland
- APC Microbiome Ireland, University College Cork, Co. Cork T12YT20, Ireland
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Dong W, Huang Y, Shu Y, Fan X, Tian X, Yan Y, Mi J, Lu L, Zeng X, Cao Y. Water extract of goji berries improves neuroinflammation induced by a high-fat and high-fructose diet based on the bile acid-mediated gut-brain axis pathway. Food Funct 2023; 14:8631-8645. [PMID: 37670564 DOI: 10.1039/d3fo02651e] [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: 09/07/2023]
Abstract
The high-fat and high-fructose diet (HFFD) is a common diet in westernized societies, which worsens disturbances in gut microbiota and bile acid (BA) metabolism. Herein, the present study aimed to investigate the effects of the water extract of Lycium barbarum fruits (LBE) on gut microbiota and BA metabolism in mice with HFFD-induced neuroinflammation. The results showed that supplementation of LBE for 14 weeks remarkably ameliorated weight gain and insulin resistance and suppressed microglial activation and neural neuroinflammation induced by HFFD. The results of Morris water maze and Y-maze tests demonstrated that LBE attenuated HFFD-induced cognitive impairment. Moreover, LBE elevated hepatic BA biosynthesis and excretion of BAs and increased elimination of BAs via the feces. Notably, LBE supplementation resulted in the enrichment of tauroursodeoxycholic acid in the cortex and hippocampus. Furthermore, the 16S rDNA sequencing results showed that LBE could modulate the structure of gut microbiota, and in the meantime decrease the relative abundance of Clostridium_XlVa, which is associated with BA homeostasis. Additionally, LBE exerted neuroprotective effects involving the increment of Lactococcus, known as a potentially beneficial bacterium. These results demonstrated that LBE could ameliorate neuroinflammation and cognitive impairment in HFFD-induced mice through the gut-liver-brain axis, which might be due to the regulation of BA homeostasis and gut microbiota in mice.
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Affiliation(s)
- Wei Dong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Yujie Huang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Yifan Shu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Xia Fan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Xinyi Tian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Yamei Yan
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China.
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Jia Mi
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China.
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Lu Lu
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China.
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Youlong Cao
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China.
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
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Magzal F, Turroni S, Fabbrini M, Barone M, Vitman Schorr A, Ofran A, Tamir S. A personalized diet intervention improves depression symptoms and changes microbiota and metabolite profiles among community-dwelling older adults. Front Nutr 2023; 10:1234549. [PMID: 37794974 PMCID: PMC10547149 DOI: 10.3389/fnut.2023.1234549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 08/21/2023] [Indexed: 10/06/2023] Open
Abstract
Introduction The impact of diet on mental well-being and gut microorganisms in humans is well recognized. However, research on the connections between food nutrients, gut microbiota, and mental health remains limited. To address this, the present study aimed to assess the effects of a personalized diet, based on individual needs and aligned with the Mediterranean diet principles, on depression symptoms, quality of life, nutritional intake, and gut microbiota changes among older adults living in the community. Methods The intervention involved regular visits from a registered dietitian, who provided tailored dietary recommendations. During the 6-month study, participants completed questionnaires to evaluate their depression levels, quality of life, and dietary habits. Additionally, they provided stool samples for analysis of gut microbiota and metabolites. Results The results demonstrated that the personalized dietary intervention reduced depression symptoms and improved the quality of life among older adults. Furthermore, significant changes in the intake of certain nutrients, such as folate, lutein, zeaxanthin, EPA, and DHA, were observed following the intervention. Moreover, the intervention was associated with increased diversity in the gut microbiome and reduced total short-chain fatty acids, the main metabolites produced by gut microorganisms. The study also revealed correlations between food nutrients, gut microbiota, and mental health parameters. Discussion In conclusion, this research highlights the potential advantages of personalized dietary interventions in managing depression and enhancing overall well-being among older populations. It also sheds light on the role of gut microbiota and its metabolites in these effects. The findings offer valuable insights into the significance of nutrition and gut health for mental well-being in older adults.
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Affiliation(s)
- Faiga Magzal
- Laboratory of Human Health and Nutrition Sciences, MIGAL-Galilee Research Institute, Kiryat Shmona, Israel
- Department of Nutrition, Tel Hai College, Upper Galilee, Israel
| | - Silvia Turroni
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Marco Fabbrini
- Unit of Microbiome Science and Biotechnology, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Monica Barone
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | | | - Snait Tamir
- Laboratory of Human Health and Nutrition Sciences, MIGAL-Galilee Research Institute, Kiryat Shmona, Israel
- Department of Nutrition, Tel Hai College, Upper Galilee, Israel
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47
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Chiba M, Tsuji T, Komatsu M. Therapeutic advancement in inflammatory bowel disease by incorporating plant-based diet. Transl Gastroenterol Hepatol 2023; 8:38. [PMID: 38021365 PMCID: PMC10643194 DOI: 10.21037/tgh-23-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 08/25/2023] [Indexed: 12/01/2023] Open
Abstract
Identification and recognition of the ubiquitous environmental factor are prerequisite for treatment and prevention of the disease. The biggest problem with current practice in inflammatory bowel disease (IBD) is the lack of a widely appreciated ubiquitous environmental factor for the disease. The incidence of IBD is associated with dietary transition from a traditional diet to the current (westernized) diet. Prospective cohort studies and case-control studies indicate that the current diet is a risk factor for IBD. The current diet tends to cause gut microbial dysbiosis resulting in a pro-inflammatory state. Therefore, we regard our current diet as this factor. Even nutritionally balanced meals are unable to suppress relapse, particularly in Crohn's disease (CD). Therefore, we developed a plant-based diet (PBD) (lacto-ovo-semi-vegetarian diet) to counter the current diet. By incorporating the PBD into practice, we achieved far better outcomes in both ulcerative colitis (UC) and CD in both the induction and quiescent phases compared to the current standard therapy. All patients were treated on an inpatient basis and provided with a PBD. CD is far more untenable than UC and is destined to follow a disabling course. Therefore, infliximab was indicated in all patients with CD, but only in severe cases with UC. This infliximab and PBD as first-line (IPF) therapy broke the barrier of primary nonresponders to biologics (around 30%): the remission rate was 96% (44/46) in CD and 76% (13/17) in severe UC. A PBD can induce remission without medication in approximately one-third of mild cases of UC. All patients were advised to adhere PBD after discharge. In CD, a relapse-free outcome was achieved in nearly a half of patients (52%) at 10-year follow-up without biologics or immunosuppressants. Cumulative relapse rates for 51 initial episode cases of UC (18 mild, 30 moderate, 3 severe) at 1 and 5 years were 14% and 27%, respectively. We believe our assertion that the current diet is the ubiquitous environmental factor underlying IBD is correct and a PBD is right diet for the disease.
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Klever AM, Alexander KA, Almeida D, Anderson MZ, Ball RL, Beamer G, Boggiatto P, Buikstra JE, Chandler B, Claeys TA, Concha AE, Converse PJ, Derbyshire KM, Dobos KM, Dupnik KM, Endsley JJ, Endsley MA, Fennelly K, Franco-Paredes C, Hagge DA, Hall-Stoodley L, Hayes D, Hirschfeld K, Hofman CA, Honda JR, Hull NM, Kramnik I, Lacourciere K, Lahiri R, Lamont EA, Larsen MH, Lemaire T, Lesellier S, Lee NR, Lowry CA, Mahfooz NS, McMichael TM, Merling MR, Miller MA, Nagajyothi JF, Nelson E, Nuermberger EL, Pena MT, Perea C, Podell BK, Pyle CJ, Quinn FD, Rajaram MVS, Mejia OR, Rothoff M, Sago SA, Salvador LCM, Simonson AW, Spencer JS, Sreevatsan S, Subbian S, Sunstrum J, Tobin DM, Vijayan KKV, Wright CTO, Robinson RT. The Many Hosts of Mycobacteria 9 (MHM9): A conference report. Tuberculosis (Edinb) 2023; 142:102377. [PMID: 37531864 PMCID: PMC10529179 DOI: 10.1016/j.tube.2023.102377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 08/04/2023]
Abstract
The Many Hosts of Mycobacteria (MHM) meeting series brings together basic scientists, clinicians and veterinarians to promote robust discussion and dissemination of recent advances in our knowledge of numerous mycobacterial diseases, including human and bovine tuberculosis (TB), nontuberculous mycobacteria (NTM) infection, Hansen's disease (leprosy), Buruli ulcer and Johne's disease. The 9th MHM conference (MHM9) was held in July 2022 at The Ohio State University (OSU) and centered around the theme of "Confounders of Mycobacterial Disease." Confounders can and often do drive the transmission of mycobacterial diseases, as well as impact surveillance and treatment outcomes. Various confounders were presented and discussed at MHM9 including those that originate from the host (comorbidities and coinfections) as well as those arising from the environment (e.g., zoonotic exposures), economic inequality (e.g. healthcare disparities), stigma (a confounder of leprosy and TB for millennia), and historical neglect (a confounder in Native American Nations). This conference report summarizes select talks given at MHM9 highlighting recent research advances, as well as talks regarding the historic and ongoing impact of TB and other infectious diseases on Native American Nations, including those in Southwestern Alaska where the regional TB incidence rate is among the highest in the Western hemisphere.
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Affiliation(s)
- Abigail Marie Klever
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Kathleen A Alexander
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA; CARACAL/Chobe Research Institute Kasane, Botswana
| | - Deepak Almeida
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, MD, USA
| | - Matthew Z Anderson
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA; Department of Microbiology, The Ohio State University, Columbus, OH, USA
| | | | - Gillian Beamer
- Host Pathogen Interactions and Population Health Program, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Paola Boggiatto
- Agricultural Research Service, United States Department of Agriculture, Ames, IA, USA
| | - Jane E Buikstra
- Center for Bioarchaeological Research, Arizona State University, Tempe, AZ, USA
| | - Bruce Chandler
- Division of Public Health, Alaska Department of Health, AK, USA
| | - Tiffany A Claeys
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Aislinn E Concha
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Paul J Converse
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, MD, USA
| | - Keith M Derbyshire
- Division of Genetics, The Wadsworth Center, New York State Department of Health, Albany, NY, USA; Department of Biomedical Sciences, University at Albany, Albany, NY, USA
| | - Karen M Dobos
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA
| | - Kathryn M Dupnik
- Center for Global Health, Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Janice J Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Mark A Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Kevin Fennelly
- Pulmonary Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Rockville, MD, USA
| | - Carlos Franco-Paredes
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA; Hospital Infantil de México Federico Gómez, México, USA
| | | | - Luanne Hall-Stoodley
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Don Hayes
- Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Courtney A Hofman
- Department of Anthropology, University of Oklahoma, Norman, OK, USA; Laboratories of Molecular Anthropology and Microbiome Research, University of Oklahoma, Norman, OK, USA
| | - Jennifer R Honda
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, TX, USA
| | - Natalie M Hull
- Department of Civil, Environmental, and Geodetic Engineering, The Ohio State University, Columbus, OH, USA
| | - Igor Kramnik
- Pulmonary Center, The Department of Medicine, Boston University Chobanian & Aveedisian School of Medicine, National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Karen Lacourciere
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - Ramanuj Lahiri
- United States Department of Health and Human Services, Health Resources and Services Administration, Health Systems Bureau, National Hansen's Disease Program, Baton Rouge, LA, USA
| | - Elise A Lamont
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Michelle H Larsen
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Sandrine Lesellier
- French Agency for Food, Environmental & Occupational Health & Safety (ANSES), Laboratory for Rabies and Wildlife,Nancy, France
| | - Naomi R Lee
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ, USA
| | - Christopher A Lowry
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Najmus S Mahfooz
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Temet M McMichael
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Marlena R Merling
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Michele A Miller
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Jyothi F Nagajyothi
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ, USA
| | - Elizabeth Nelson
- Microbial Paleogenomics Unit, Dept of Genomes and Genetics, Institut Pasteur, Paris, France
| | - Eric L Nuermberger
- Center for Tuberculosis Research, Johns Hopkins University, Baltimore, MD, USA
| | - Maria T Pena
- United States Department of Health and Human Services, Health Resources and Services Administration, Health Systems Bureau, National Hansen's Disease Program, Baton Rouge, LA, USA
| | - Claudia Perea
- Animal & Plant Health Inspection Service, United States Department of Agriculture, Ames, IA, USA
| | - Brendan K Podell
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA
| | - Charlie J Pyle
- Department of Molecular Genetics & Microbiology, Duke University School of Medicine, Durham, NC, USA; Department of Immunology, Duke University School of Medicine, Durham, NC, USA
| | - Fred D Quinn
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Murugesan V S Rajaram
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | - Oscar Rosas Mejia
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA
| | | | - Saydie A Sago
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Liliana C M Salvador
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, USA
| | - Andrew W Simonson
- Department of Microbiology and Molecular Genetics and the Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - John S Spencer
- Department of Microbiology, Immunology, and Pathology, Mycobacteria Research Laboratories, Colorado State University, Fort Collins, CO, USA
| | - Srinand Sreevatsan
- Pathobiology & Diagnostic Investigation Department, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Selvakumar Subbian
- Public Health Research Institute (PHRI), New Jersey Medical School, Rutgers University, Newark, NJ, USA
| | | | - David M Tobin
- Department of Molecular Genetics & Microbiology, Duke University School of Medicine, Durham, NC, USA; Department of Immunology, Duke University School of Medicine, Durham, NC, USA
| | - K K Vidya Vijayan
- Department of Microbiology and Immunology, Center for AIDS Research, and Children's Research Institute, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Caelan T O Wright
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA
| | - Richard T Robinson
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA; Infectious Diseases Institute, The Ohio State University, OH, USA.
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49
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Zhang C, Cao Z, Lei H, Chen C, Du R, Song Y, Zhang C, Zhou J, Lu Y, Huang L, Shen P, Zhang L. Discovery of a novel small molecule with efficacy in protecting against inflammation in vitro and in vivo by enhancing macrophages activation. Biomed Pharmacother 2023; 165:115273. [PMID: 37536035 DOI: 10.1016/j.biopha.2023.115273] [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: 06/12/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023] Open
Abstract
Immune response and inflammation highly contribute to many metabolic syndromes such as inflammatory bowel disease (IBD), ageing and cancer with disruption of host metabolic homeostasis and the gut microbiome. Icariin-1 (GH01), a small-molecule flavonoid derived from Epimedium, has been shown to protect against systemic inflammation. However, the molecular mechanisms by which GH01 ameliorates ulcerative colitis via regulation of microbiota-mediated macrophages polarization remain elusive. In this study, we found that GH01 effectively ameliorated dextran sulfate sodium (DSS)-induced colitis symptoms in mice. Disruption of intestinal barrier function, commensal microbiota and its metabolites were also significantly restored by GH01 in a dose-dependent manner. Of note, we also found that GH01 enhanced phagocytic ability of macrophages and switched macrophage phenotype from M1 to M2 both in vitro and in vivo. Such macrophage polarization was highly associated with intestinal barrier integrity and the gut microbial community. Consequently, GH01 exhibited strong anti-inflammatory capacity by inhibiting TLR4 and NF-κB pathways and proinflammatory factors (IL-6). These findings suggested that GH01 might be a potential nutritional intervention strategy for IBD treatment with the gut microbial community-meditated macrophage as the therapeutic targets.
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Affiliation(s)
- Cui Zhang
- College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, China; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
| | - Zheng Cao
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hehua Lei
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
| | - Chuan Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruichen Du
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuchen Song
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ce Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinlin Zhou
- Golden Health (Guangdong) Biotechnology Co., Ltd, Foshan 528225, China
| | - Yujing Lu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China; Golden Health (Guangdong) Biotechnology Co., Ltd, Foshan 528225, China
| | - Luodong Huang
- College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, China.
| | - Peihong Shen
- College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, China.
| | - Limin Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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50
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Han X, Ma Y, Ding S, Fang J, Liu G. Regulation of dietary fiber on intestinal microorganisms and its effects on animal health. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 14:356-369. [PMID: 37635930 PMCID: PMC10448034 DOI: 10.1016/j.aninu.2023.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/16/2023] [Accepted: 06/20/2023] [Indexed: 08/29/2023]
Abstract
The animal gut harbors diverse microbes that play an essential role in the well-being of their host. Specific diets, such as those rich in dietary fiber, are vital in disease prevention and treatment because they affect intestinal flora and have a positive impact on the metabolism, immunity, and intestinal function of the host. Dietary fiber can provide energy to colonic epithelial cells, regulate the structure and metabolism of intestinal flora, promote the production of intestinal mucosa, stimulate intestinal motility, improve glycemic and lipid responses, and regulate the digestion and absorption of nutrients, which is mainly attributed to short-chain fatty acids (SCFA), which is the metabolite of dietary fiber. By binding with G protein-coupled receptors (including GPR41, GPR43 and GPR109A) and inhibiting the activity of histone deacetylases, SCFA regulate appetite and glucolipid metabolism, promote the function of the intestinal barrier, alleviate oxidative stress, suppress inflammation, and maintain immune system homeostasis. This paper reviews the physicochemical properties of dietary fiber, the interaction between dietary fiber and intestinal microorganisms, the role of dietary fiber in maintaining intestinal health, and the function of SCFA, the metabolite of dietary fiber, in inhibiting inflammation. Furthermore, we consider the effects of dietary fiber on the intestinal health of pigs, the reproduction and lactation performance of sows, and the growth performance and meat quality of pigs.
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Affiliation(s)
- Xuebing Han
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, Hunan 410125, China
| | - Yong Ma
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, Hunan 410125, China
| | - Sujuan Ding
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, Hunan 410125, China
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, Hunan 410125, China
| | - Gang Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, Hunan 410125, China
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