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Schneider E, O'Riordan KJ, Clarke G, Cryan JF. Feeding gut microbes to nourish the brain: unravelling the diet-microbiota-gut-brain axis. Nat Metab 2024:10.1038/s42255-024-01108-6. [PMID: 39174768 DOI: 10.1038/s42255-024-01108-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 07/15/2024] [Indexed: 08/24/2024]
Abstract
The prevalence of brain disorders, including stress-related neuropsychiatric disorders and conditions with cognitive dysfunction, is rising. Poor dietary habits contribute substantially to this accelerating trend. Conversely, healthy dietary intake supports mood and cognitive performance. Recently, the communication between the microorganisms within the gastrointestinal tract and the brain along the gut-brain axis has gained prominence as a potential tractable target to modulate brain health. The composition and function of the gut microbiota is robustly influenced by dietary factors to alter gut-brain signalling. To reflect this interconnection between diet, gut microbiota and brain functioning, we propose that a diet-microbiota-gut-brain axis exists that underpins health and well-being. In this Review, we provide a comprehensive overview of the interplay between diet and gut microbiota composition and function and the implications for cognition and emotional functioning. Important diet-induced effects on the gut microbiota for the development, prevention and maintenance of neuropsychiatric disorders are described. The diet-microbiota-gut-brain axis represents an uncharted frontier for brain health diagnostics and therapeutics across the lifespan.
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Affiliation(s)
| | | | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
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Zhang Y, Wang C, Lang H, Yu H, Zhou M, Rao X, Zhang Q, Yi L, Zhu J, Mi M. The Contrasting Effects of Two Distinct Exercise Training Modalities on Exhaustive Exercise-Induced Muscle Damage in Mice May Be Associated with Alterations in the Gut Microbiota. Int J Mol Sci 2024; 25:7837. [PMID: 39063080 PMCID: PMC11277320 DOI: 10.3390/ijms25147837] [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: 05/25/2024] [Revised: 06/30/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Exhaustive exercise is known to induce muscle damage characterized by inflammation and oxidative stress. Although "regular" and "weekend warrior" exercise regimens have been shown to confer comparable health benefits in human studies, such as reduced risks of all-cause, cardiovascular disease (CVD), and cancer mortality, their differential impacts on muscle damage post-exhaustive exercise remain unclear. This study aimed to compare the effects of long-term, moderate-intensity (LTMI) and short-term, high-intensity (STHI) training modalities, matched for total exercise volume, on gut microbiota, short-chain fatty acids (SCFAs), and exhaustive exercise-induced muscle damage in mice, as well as to evaluate the correlation between these factors. LTMI is considered a regular exercise regimen, while STHI shares some similarities with the "weekend warrior" pattern, such as promoting exercise intensity and condensing training sessions into a short period. Our findings indicate that LTMI training significantly enhanced the abundance of SCFA-producing bacteria, including Akkermansia, Prevotellaceae_NK3B31_group, Odoribacter, Alistipes, and Lactobacillus, thereby increasing SCFA levels and attenuating muscle damage following exhaustive swimming. In contrast, STHI training increased the abundance of opportunistic pathogens such as Staphylococcus and Bilophila, without altering SCFA levels, and was associated with exacerbated muscle damage. Moreover, we observed a significant negative correlation between the abundance of SCFA-producing bacteria and SCFA levels with the expression of inflammatory cytokines in the muscle of mice post-exhaustive exercise. Conversely, the abundance of Staphylococcus and Bilophila showed a notable positive correlation with these cytokines. Additionally, the effects of LTMI and STHI on exhaustive exercise-induced muscle damage were transmissible to untrained mice via fecal microbiota transplantation, suggesting that gut microbiota changes induced by these training modalities may contribute to their contrasting impacts on muscle damage. These results underscore the significance of selecting an appropriate training modality prior to engaging in exhaustive exercise, with implications for athletic training and injury prevention.
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Teffera M, Veith AC, Ronnekleiv-Kelly S, Bradfield CA, Nikodemova M, Tussing-Humphreys L, Malecki K. Diverse mechanisms by which chemical pollutant exposure alters gut microbiota metabolism and inflammation. ENVIRONMENT INTERNATIONAL 2024; 190:108805. [PMID: 38901183 DOI: 10.1016/j.envint.2024.108805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/28/2024] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
The human gut microbiome, the host, and the environment are inextricably linked across the life course with significant health impacts. Consisting of trillions of bacteria, fungi, viruses, and other micro-organisms, microbiota living within our gut are particularly dynamic and responsible for digestion and metabolism of diverse classes of ingested chemical pollutants. Exposure to chemical pollutants not only in early life but throughout growth and into adulthood can alter human hosts' ability to absorb and metabolize xenobiotics, nutrients, and other components critical to health and longevity. Inflammation is a common mechanism underlying multiple environmentally related chronic conditions, including cardiovascular disease, multiple cancer types, and mental health. While growing research supports complex interactions between pollutants and the gut microbiome, significant gaps exist. Few reviews provide descriptions of the complex mechanisms by which chemical pollutants interact with the host microbiome through either direct or indirect pathways to alter disease risk, with a particular focus on inflammatory pathways. This review focuses on examples of several classes of pollutants commonly ingested by humans, including (i) heavy metals, (ii) persistent organic pollutants (POPs), and (iii) nitrates. Digestive enzymes and gut microbes are the first line of absorption and metabolism of these chemicals, and gut microbes have been shown to alter compounds from a less to more toxic state influencing subsequent distribution and excretion. In addition, chemical pollutants may interact with or alter the selection of more harmful and less commensal microbiota, leading to gut dysbiosis, and changes in receptor-mediated signaling pathways that alter the integrity and function of the gut intestinal tract. Arsenic, cadmium, and lead (heavy metals), influence the microbiome directly by altering different classes of bacteria, and subsequently driving inflammation through metabolite production and different signaling pathways (LPS/TLR4 or proteoglycan/TLR2 pathways). POPs can alter gut microbial composition either directly or indirectly depending on their ability to activate key signaling pathways within the intestine (e.g., PCB-126 and AHR). Nitrates and nitrites' effect on the gut and host may depend on their ability to be transformed to secondary and tertiary metabolites by gut bacteria. Future research should continue to support foundational research both in vitro, in vivo, and longitudinal population-based research to better identify opportunities for prevention, gain additional mechanistic insights into the complex interactions between environmental pollutants and the microbiome and support additional translational science.
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Affiliation(s)
- Menna Teffera
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Biotechnology Center, University of Wisconsin-Madison, Madison, WI, US.
| | - Alex C Veith
- Department of Oncology, University of Wisconsin-Madison, Madison, WI, US.
| | - Sean Ronnekleiv-Kelly
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Biotechnology Center, University of Wisconsin-Madison, Madison, WI, US; Department of Surgery, University of Wisconsin-Madison, Madison, WI, US.
| | - Christopher A Bradfield
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Department of Surgery, University of Wisconsin-Madison, Madison, WI, US; Department of Oncology, University of Wisconsin-Madison, Madison, WI, US.
| | - Maria Nikodemova
- College of Public Health and Health Professionals, University of Florida, FL, US.
| | - Lisa Tussing-Humphreys
- Department of Kinesiology and Nutrition, University of Illinois-Chicago, Chicago, IL, US; University of Illinois Cancer Center, University of Illinois-Chicago, Chicago, IL, US.
| | - Kristen Malecki
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Biotechnology Center, University of Wisconsin-Madison, Madison, WI, US; University of Illinois Cancer Center, University of Illinois-Chicago, Chicago, IL, US; Environmental Occupational Health Sciences, University of Illinois-Chicago, Chicago, IL, US.
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Jena PK, Wakita D, Gomez AC, Carvalho TT, Atici AE, Narayanan M, Lee Y, Fishbein MC, Cani PD, de Vos WM, Underhill DM, Devkota S, Chen S, Shimada K, Crother TR, Arditi M, Rivas MN. The intestinal microbiota contributes to the development of immune-mediated cardiovascular inflammation and vasculitis in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.28.596258. [PMID: 38853964 PMCID: PMC11160596 DOI: 10.1101/2024.05.28.596258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Alterations in the intestinal microbiota contribute to the pathogenesis of various cardiovascular disorders, but how they affect the development of Kawasaki disease (KD), an acute pediatric vasculitis, remains unclear. We report that depleting the gut microbiota reduces the development of cardiovascular inflammation in a murine model mimicking KD vasculitis. The development of cardiovascular lesions was associated with alterations in the intestinal microbiota composition and, notably, a decreased abundance of Akkermansia muciniphila and Faecalibacterium prausnitzii. Oral supplementation with either of these live or pasteurized individual bacteria, or with short-chain fatty acids (SCFAs) produced by them, attenuated cardiovascular inflammation. Treatment with Amuc_1100, the TLR-2 signaling outer membrane protein from A. muciniphila , also decreased the severity of vascular inflammation. This study reveals an underappreciated gut microbiota-cardiovascular inflammation axis in KD vasculitis pathogenesis and identifies specific intestinal commensals that regulate vasculitis in mice by producing metabolites or via extracellular proteins acting on gut barrier function. IN BRIEF It remains unclear whether changes in the intestinal microbiota composition are involved in the development of cardiovascular lesions associated with Kawasaki disease (KD), an immune-mediated vasculitis. Jena et al. observe alterations in the intestinal microbiota composition of mice developing vasculitis, characterized by reduced A. muciniphila and F. prausnitzii . Oral supplementation with either of these bacteria, live or pasteurized, or with bacteria-produced short-chain fatty acids (SCFAs) or Amuc_1100, the TLR-2 signaling outer membrane protein of A. muciniphila , was sufficient to alleviate the development of cardiovascular lesions in mice by promoting intestinal barrier function. HIGHLIGHTS Absence or depletion of the microbiota decreases the severity of vasculitis in a murine model mimicking KD vasculitis. Supplementation of B. wadsworthia and B. fragilis promotes murine KD vasculitis. Decreased abundances of F. prausnitzii and A. muciniphila are associated with the development of cardiovascular lesions in mice. Supplementation with either live or pasteurized A. muciniphila and F. prausnitzii, or the TLR-2 signaling Amuc_1100, reduces the severity of vasculitis by promoting gut barrier function.
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Liu J, Li Y, Shen D, Li X, Wang K, Nagaoka K, Li C. Gut microbiota intervention alleviates pulmonary inflammation in broilers exposed to fine particulate matter from broiler house. Appl Environ Microbiol 2024; 90:e0217423. [PMID: 38656183 PMCID: PMC11107152 DOI: 10.1128/aem.02174-23] [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: 12/05/2023] [Accepted: 03/31/2024] [Indexed: 04/26/2024] Open
Abstract
The gut microbiota of poultry is influenced by a variety of factors, including feed, drinking water, airborne dust, and footpads, among others. Gut microbiota can affect the immune reaction and inflammation in the lungs. To investigate the effect of gut microbiota variation on lung inflammation induced by PM2.5 (fine particulate matter) in broilers, 36 Arbor Acres (AA) broilers were randomly assigned to three groups: control group (CON), PM2.5 exposure group (PM), and PM2.5 exposure plus oral antibiotics group (PMA). We used non-absorbable antibiotics (ABX: neomycin and amikacin) to modify the microbiota composition in the PMA group. The intervention was conducted from the 18th to the 28th day of age. Broilers in the PM and PMA groups were exposed to PM by a systemic exposure method from 21 to 28 days old, and the concentration of PM2.5 was controlled at 2 mg/m3. At 28 days old, the lung injury score, relative mRNA expression of inflammatory factors, T-cell differentiation, and dendritic cell function were significantly increased in the PM group compared to the CON group, and those of the PMA group were significantly decreased compared to the PM group. There were significant differences in both α and β diversity of cecal microbiota among these three groups. Numerous bacterial genera showed significant differences in relative abundance among the three groups. In conclusion, gut microbiota could affect PM2.5-induced lung inflammation in broilers by adjusting the capacity of antigen-presenting cells to activate T-cell differentiation. IMPORTANCE Gut microbes can influence the development of lung inflammation, and fine particulate matter collected from broiler houses can lead to lung inflammation in broilers. In this study, we explored the effect of gut microbes modified by intestinal non-absorbable antibiotics on particulate matter-induced lung inflammation. The results showed that modification in the composition of gut microbiota could alleviate lung inflammation by attenuating the ability of dendritic cells to stimulate T-cell differentiation, which provides a new way to protect lung health in poultry farms.
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Affiliation(s)
- Junze Liu
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yuan Li
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Dan Shen
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Xiaoqing Li
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kai Wang
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Chunmei Li
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Sall I, Foxall R, Felth L, Maret S, Rosa Z, Gaur A, Calawa J, Pavlik N, Whistler JL, Whistler CA. Gut dysbiosis was inevitable, but tolerance was not: temporal responses of the murine microbiota that maintain its capacity for butyrate production correlate with sustained antinociception to chronic voluntary morphine. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.15.589671. [PMID: 38659831 PMCID: PMC11042308 DOI: 10.1101/2024.04.15.589671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The therapeutic benefits of opioids are compromised by the development of analgesic tolerance, which necessitates higher dosing for pain management thereby increasing the liability for dependence and addiction. Rodent models indicate opposing roles of the gut microbiota in tolerance: morphine-induced gut dysbiosis exacerbates tolerance, whereas probiotics ameliorate tolerance. Not all individuals develop tolerance which could be influenced by differences in microbiota, and yet no study has capitalized upon this natural variation to identify specific features linked to tolerance. We leveraged this natural variation in a murine model of voluntary oral morphine self-administration to elucidate the mechanisms by which microbiota influences tolerance. Although all mice shared similar and predictive morphine-driven microbiota changes that largely masked informative associations with variability in tolerance, our high-resolution temporal analyses revealed a divergence in the progression of dysbiosis that best explained differences in the development in tolerance. Mice that did not develop tolerance also maintained a higher abundance of taxa capable of producing the short-chain fatty acid (SCFA) butyrate, known to bolster intestinal barriers, suppress inflammation, and promote neuronal homeostasis. Furthermore, dietary butyrate supplementation significantly reduced the development of tolerance. These findings could inform immediate therapies to extend the analgesic efficacy of opioids.
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Affiliation(s)
- Izabella Sall
- Department of Molecular, Cellular, & Biomedical Sciences, University of New Hampshire, Durham, NH, USA
- Graduate program in Molecular and Evolutionary Systems Biology, University of New Hampshire, Durham, NH, USA
| | - Randi Foxall
- Department of Molecular, Cellular, & Biomedical Sciences, University of New Hampshire, Durham, NH, USA
| | - Lindsey Felth
- Center for Neuroscience, University of California–Davis, Davis, CA, USA
| | - Soren Maret
- Department of Molecular, Cellular, & Biomedical Sciences, University of New Hampshire, Durham, NH, USA
| | - Zachary Rosa
- Center for Neuroscience, University of California–Davis, Davis, CA, USA
| | - Anirudh Gaur
- Center for Neuroscience, University of California–Davis, Davis, CA, USA
| | - Jennifer Calawa
- Department of Molecular, Cellular, & Biomedical Sciences, University of New Hampshire, Durham, NH, USA
- Microbiology Graduate Program, University of New Hampshire, Durham, NH, USA
| | - Nadia Pavlik
- Department of Molecular, Cellular, & Biomedical Sciences, University of New Hampshire, Durham, NH, USA
| | - Jennifer L. Whistler
- Center for Neuroscience, University of California–Davis, Davis, CA, USA
- Department of Physiology and Membrane Biology, UC Davis School of Medicine, Davis, CA, USA
| | - Cheryl A. Whistler
- Department of Molecular, Cellular, & Biomedical Sciences, University of New Hampshire, Durham, NH, USA
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Liu X, Wang Y, Tian Y, Hu J, Liu Z, Ma Y, Xu W, Wang W, Gao J, Wang T. The Water Extract of Rhubarb Prevents Ischemic Stroke by Regulating Gut Bacteria and Metabolic Pathways. Metabolites 2024; 14:216. [PMID: 38668344 PMCID: PMC11052393 DOI: 10.3390/metabo14040216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
Rhubarb (RR), Chinese name Dahuang, is commonly used in the treatment of ischemic stroke (IS). However, its potential mechanism is not fully elucidated. This study intended to verify the effect of RR on IS and investigate the possible mechanism of RR in preventing IS. IS in male rats was induced by embolic middle cerebral artery occlusion (MCAO) surgery, and drug administration was applied half an hour before surgery. RR dramatically decreased the neurological deficit scores, the cerebral infarct volume, and the cerebral edema rate, and improved the regional cerebral blood flow (rCBF) and histopathological changes in the brain of MCAO rats. The 16S rRNA analysis showed the harmful microbes such as Fournierella and Bilophila were decreased, and the beneficial microbes such as Enterorhabdus, Defluviitaleaceae, Christensenellaceae, and Lachnospira were significantly increased, after RR pretreatment. 1H-nuclear magnetic resonance (1H-NMR) was used to detect serum metabolomics, and RR treatment significantly changed the levels of metabolites such as isoleucine, valine, N6-acetyllysine, methionine, 3-aminoisobutyric acid, N, N-dimethylglycine, propylene glycol, trimethylamine N-oxide, myo-inositol, choline, betaine, lactate, glucose, and lipid, and the enrichment analysis of differential metabolites showed that RR may participate in the regulation of amino acid metabolism and energy metabolism. RR exerts the role of anti-IS via regulating gut bacteria and metabolic pathways.
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Affiliation(s)
- Xiaoyao Liu
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; (X.L.); (J.H.)
| | - Yuxi Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.W.); (Y.M.)
| | - Yuan Tian
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.T.); (Z.L.); (W.X.)
| | - Jiahui Hu
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; (X.L.); (J.H.)
| | - Zhen Liu
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.T.); (Z.L.); (W.X.)
| | - Yuncheng Ma
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.W.); (Y.M.)
| | - Wenhui Xu
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.T.); (Z.L.); (W.X.)
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Weiling Wang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.T.); (Z.L.); (W.X.)
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jian Gao
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.T.); (Z.L.); (W.X.)
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Ting Wang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing 100029, China; (Y.T.); (Z.L.); (W.X.)
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
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Liu J, Yan Q, Li S, Jiao J, Hao Y, Zhang G, Zhang Q, Luo F, Zhang Y, Lv Q, Zhang W, Zhang A, Song H, Xin Y, Ma Y, Owusu L, Ma X, Yin P, Shang D. Integrative metagenomic and metabolomic analyses reveal the potential of gut microbiota to exacerbate acute pancreatitis. NPJ Biofilms Microbiomes 2024; 10:29. [PMID: 38514648 PMCID: PMC10957925 DOI: 10.1038/s41522-024-00499-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 03/13/2024] [Indexed: 03/23/2024] Open
Abstract
Early dysbiosis in the gut microbiota may contribute to the severity of acute pancreatitis (AP), however, a comprehensive understanding of the gut microbiome, potential pathobionts, and host metabolome in individuals with AP remains elusive. Hence, we employed fecal whole-metagenome shotgun sequencing in 82 AP patients and 115 matched healthy controls, complemented by untargeted serum metabolome and lipidome profiling in a subset of participants. Analyses of the gut microbiome in AP patients revealed reduced diversity, disrupted microbial functions, and altered abundance of 77 species, influenced by both etiology and severity. AP-enriched species, mostly potential pathobionts, correlated positively with host liver function and serum lipid indicators. Conversely, many AP-depleted species were short-chain fatty acid producers. Gut microflora changes were accompanied by shifts in the serum metabolome and lipidome. Specifically, certain gut species, like enriched Bilophila wadsworthia and depleted Bifidobacterium spp., appeared to contribute to elevated triglyceride levels in biliary or hyperlipidemic AP patients. Through culturing and whole-genome sequencing of bacterial isolates, we identified virulence factors and clinically relevant antibiotic resistance in patient-derived strains, suggesting a predisposition to opportunistic infections. Finally, our study demonstrated that gavage of specific pathobionts could exacerbate pancreatitis in a caerulein-treated mouse model. In conclusion, our comprehensive analysis sheds light on the gut microbiome and serum metabolome in AP, elucidating the role of pathobionts in disease progression. These insights offer valuable perspectives for etiologic diagnosis, prevention, and intervention in AP and related conditions.
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Affiliation(s)
- Jianjun Liu
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Qiulong Yan
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | | | - Juying Jiao
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Yiming Hao
- Department of Gastrointestinal Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Guixin Zhang
- Pancreaticobiliary Centre, Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qingkai Zhang
- Pancreaticobiliary Centre, Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Fei Luo
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Yue Zhang
- Puensum Genetech Institute, Wuhan, China
| | - Qingbo Lv
- Puensum Genetech Institute, Wuhan, China
| | - Wenzhe Zhang
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | | | - Huiyi Song
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yi Xin
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Yufang Ma
- Department of Microbiology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Lawrence Owusu
- College of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Xiaochi Ma
- Second Affiliated Hospital, Dalian Medical University, Dalian, China.
| | - Peiyuan Yin
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China.
- College of Integrative Medicine, Dalian Medical University, Dalian, China.
| | - Dong Shang
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China.
- College of Integrative Medicine, Dalian Medical University, Dalian, China.
- Pancreaticobiliary Centre, Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China.
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9
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Kushkevych I, Martínková K, Mráková L, Giudici F, Baldi S, Novak D, Gajdács M, Vítězová M, Dordevic D, Amedei A, Rittmann SKMR. Comparison of microbial communities and the profile of sulfate-reducing bacteria in patients with ulcerative colitis and their association with bowel diseases: a pilot study. MICROBIAL CELL (GRAZ, AUSTRIA) 2024; 11:79-89. [PMID: 38486888 PMCID: PMC10939707 DOI: 10.15698/mic2024.03.817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 03/17/2024]
Abstract
Considerable evidence has accumulated regarding the molecular relationship between gut microbiota (GM) composition and the onset (clinical presentation and prognosis of ulcerative colitis (UC)). In addition, it is well documented that short-chain fatty acid (SCFA)-producing bacteria may play a fundamental role in maintaining an anti-inflammatory intestinal homeostasis, but sulfate- and sulfite reducing bacteria may be responsible for the production of toxic metabolites, such as hydrogen sulfide and acetate. Hence, the present study aimed to assess the GM composition - focusing on sulfate-reducing bacteria (SRB) - in patients with severe, severe-active and moderate UC. Each one of the six enrolled patients provided two stool samples in the following way: one sample was cultivated in a modified SRB-medium before 16S rRNA sequencing and the other was not cultivated. Comparative phylogenetic analysis was conducted on each sample. Percentage of detected gut microbial genera showed considerable variation based on the patients' disease severity and cultivation in the SRB medium. In detail, samples without cultivation from patients with moderate UC showed a high abundance of the genera Bacteroides, Bifidobacterium and Ruminococcus, but after SRB cultivation, the dominant genera were Bacteroides, Klebsiella and Bilophila. On the other hand, before SRB cultivation, the main represented genera in patients with severe UC were Escherichia-Shigella, Proteus, Methanothermobacter and Methanobacterium. However, after incubation in the SRB medium Bacteroides, Proteus, Alistipes and Lachnoclostridium were predominant. Information regarding GM compositional changes in UC patients may aid the development of novel therapeutic strategies (e.g., probiotic preparations containing specific bacterial strains) to counteract the mechanisms of virulence of harmful bacteria and the subsequent inflammatory response that is closely related to the pathogenesis of inflammatory bowel diseases.
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Affiliation(s)
- Ivan Kushkevych
- Department of Experimental Biology, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Kristýna Martínková
- Department of Experimental Biology, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Lenka Mráková
- Department of Experimental Biology, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Francesco Giudici
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - Simone Baldi
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - David Novak
- Department of Biochemistry, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Márió Gajdács
- Department of Oral Biology and Experimental Dental Research, Faculty of Dentistry, University of Szeged, 6720 Szeged, Hungary
| | - Monika Vítězová
- Department of Experimental Biology, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
| | - Dani Dordevic
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - Simon K.-M. R. Rittmann
- Department of Functional and Evolutionary Ecology, Archaea Physiology & Biotechnology Group, Universität Wien, 1030 Wien, Austria
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10
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Burkhart Colorado AS, Lazzaro A, Neff CP, Nusbacher N, Boyd K, Fiorillo S, Martin C, Siebert JC, Campbell TB, Borok M, Palmer BE, Lozupone C. Differential effects of antiretroviral treatment on immunity and gut microbiome composition in people living with HIV in rural versus urban Zimbabwe. MICROBIOME 2024; 12:18. [PMID: 38310301 PMCID: PMC10837999 DOI: 10.1186/s40168-023-01718-4] [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: 08/27/2023] [Accepted: 11/09/2023] [Indexed: 02/05/2024]
Abstract
BACKGROUND The widespread availability of antiretroviral therapy (ART) has dramatically reduced mortality and improved life expectancy for people living with HIV (PLWH). However, even with HIV-1 suppression, chronic immune activation and elevated inflammation persist and have been linked to a pro-inflammatory gut microbiome composition and compromised intestinal barrier integrity. PLWH in urban versus rural areas of sub-Saharan Africa experience differences in environmental factors that may impact the gut microbiome and immune system, in response to ART, yet this has not previously been investigated in these groups. To address this, we measured T cell activation/exhaustion/trafficking markers, plasma inflammatory markers, and fecal microbiome composition in PLWH and healthy participants recruited from an urban clinic in the city of Harare, Zimbabwe, and a district hospital that services surrounding rural villages. PLWH were either ART naïve at baseline and sampled again after 24 weeks of first-line ART and the antibiotic cotrimoxazole or were ART-experienced at both timepoints. RESULTS Although expected reductions in the inflammatory marker IL-6, T-cell activation, and exhaustion were observed with ART-induced viral suppression, these changes were much more pronounced in the urban versus the rural area. Gut microbiome composition was the most highly altered from healthy controls in ART experienced PLWH, and characterized by both reduced alpha diversity and altered composition. However, gut microbiome composition showed a pronounced relationship with T cell activation and exhaustion in ART-naïve PLWH, suggesting a particularly significant role for the gut microbiome in disease progression in uncontrolled infection. Elevated immune exhaustion after 24 weeks of ART did correlate with both living in the rural location and a more Prevotella-rich/Bacteroides-poor microbiome type, suggesting a potential role for rural-associated microbiome differences or their co-variates in the muted improvements in immune exhaustion in the rural area. CONCLUSION Successful ART was less effective at reducing gut microbiome-associated inflammation and T cell activation in PLWH in rural versus urban Zimbabwe, suggesting that individuals on ART in rural areas of Zimbabwe may be more vulnerable to co-morbidity related to sustained immune dysfunction in treated infection. Video Abstract.
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Affiliation(s)
| | - Alessandro Lazzaro
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185, Rome, Italy
| | - Charles Preston Neff
- Department Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Nichole Nusbacher
- Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Kathryn Boyd
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT, England
| | - Suzanne Fiorillo
- Department Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Casey Martin
- Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Janet C Siebert
- Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Thomas B Campbell
- Department Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Margaret Borok
- Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe
| | - Brent E Palmer
- Department Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.
| | - Catherine Lozupone
- Department of Biomedical Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.
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11
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Gilley SP, Zarate MA, Zheng L, Jambal P, Yazza DN, Chintapalli SV, MacLean PS, Wright CJ, Rozance PJ, Shankar K. Metabolic and fecal microbial changes in adult fetal growth restricted mice. Pediatr Res 2024; 95:647-659. [PMID: 37935884 PMCID: PMC10899111 DOI: 10.1038/s41390-023-02869-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/13/2023] [Accepted: 10/12/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND Fetal growth restriction (FGR) increases risk for development of obesity and type 2 diabetes. Using a mouse model of FGR, we tested whether metabolic outcomes were exacerbated by high-fat diet challenge or associated with fecal microbial taxa. METHODS FGR was induced by maternal calorie restriction from gestation day 9 to 19. Control and FGR offspring were weaned to control (CON) or 45% fat diet (HFD). At age 16 weeks, offspring underwent intraperitoneal glucose tolerance testing, quantitative MRI body composition assessment, and energy balance studies. Total microbial DNA was used for amplification of the V4 variable region of the 16 S rRNA gene. Multivariable associations between groups and genera abundance were assessed using MaAsLin2. RESULTS Adult male FGR mice fed HFD gained weight faster and had impaired glucose tolerance compared to control HFD males, without differences among females. Irrespective of weaning diet, adult FGR males had depletion of Akkermansia, a mucin-residing genus known to be associated with weight gain and glucose handling. FGR females had diminished Bifidobacterium. Metabolic changes in FGR offspring were associated with persistent gut microbial changes. CONCLUSION FGR results in persistent gut microbial dysbiosis that may be a therapeutic target to improve metabolic outcomes. IMPACT Fetal growth restriction increases risk for metabolic syndrome later in life, especially if followed by rapid postnatal weight gain. We report that a high fat diet impacts weight and glucose handling in a mouse model of fetal growth restriction in a sexually dimorphic manner. Adult growth-restricted offspring had persistent changes in fecal microbial taxa known to be associated with weight, glucose homeostasis, and bile acid metabolism, particularly Akkermansia, Bilophilia and Bifidobacteria. The gut microbiome may represent a therapeutic target to improve long-term metabolic outcomes related to fetal growth restriction.
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Affiliation(s)
- Stephanie P Gilley
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine, Aurora, CO, USA.
| | - Miguel A Zarate
- Department of Pediatrics, Section of Neonatology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Lijun Zheng
- Department of Pediatrics, Section of Neonatology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Purevsuren Jambal
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine, Aurora, CO, USA
| | - Deaunabah N Yazza
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine, Aurora, CO, USA
| | - Sree V Chintapalli
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Paul S MacLean
- Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Clyde J Wright
- Department of Pediatrics, Section of Neonatology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Paul J Rozance
- Department of Pediatrics, Section of Neonatology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Kartik Shankar
- Department of Pediatrics, Section of Nutrition, University of Colorado School of Medicine, Aurora, CO, USA
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12
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Wu Y, Shi R, Chen H, Zhang Z, Bao S, Qu J, Zhou M. Effect of the gut microbiome in glaucoma risk from the causal perspective. BMJ Open Ophthalmol 2024; 9:e001547. [PMID: 38286567 PMCID: PMC10826588 DOI: 10.1136/bmjophth-2023-001547] [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: 10/25/2023] [Accepted: 01/12/2024] [Indexed: 01/31/2024] Open
Abstract
OBJECTIVE Evidence from observational studies has reported possible associations between the gut microbiome (GM) and glaucoma. However, the causal effect of GM on glaucoma risk remains to be determined. METHODS AND ANALYSIS We conducted two-sample bidirectional Mendelian randomisation (MR) analyses to explore the causal association between GM and glaucoma. Genome-wide association study summary statistics of 196 GM taxa (n=18 340) and glaucoma (18 902 cases and 358 375 controls) were obtained from MiBioGen and FinnGen Consortium. Inverse variance weighted, MR-Egger, weighted median, weighted mode, Mendelian Randomisation Pleiotropy Residual Sum and Outlier, MR-Egger intercept and Cochran's Q statistical analyses were used to supplement MR results and sensitivity analysis. An independent cohort from the Medical Research Council (MRC) Integrative Epidemiology Unit at the University of Bristol (MRC-IEU) Consortium (1715 cases and 359 479 controls) was used to validate causal effects. RESULTS Results of the MR analysis suggested that the family Oxalobacteraceae (OR 0.900, 95% CI 0.843 to 0.961, p=0.002) and the genus Eggerthella (OR 0.881, 95% CI 0.811 to 0.957, p=0.003) had a negative effect on glaucoma, whereas the genus Bilophila (OR 1.202, 95% CI 1.074 to 1.346, p=0.001), LachnospiraceaeUCG010 (OR 1.256, 95% CI 1.109 to 1.423, p=0.0003) and Ruminiclostridium 9 (OR 1.258, 95% CI 1.083 to 1.461, p=0.003) had a positive effect on glaucoma. Among these, the positive causal effect of LachnospiraceaeUCG010 (OR 1.002, 95% CI 1.000 to 1.004, p=0.033) on glaucoma was replicated in an independent cohort. CONCLUSION This MR analysis from large population studies demonstrated the causal effect of GM on glaucoma risk and supported the role of GM in influencing glaucoma susceptibility.
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Affiliation(s)
- Yaxuan Wu
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou, People's Republic of China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
- Hainan Institute of Real World Data, Qionghai, People's Republic of China
| | - Ronghua Shi
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou, People's Republic of China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
- Hainan Institute of Real World Data, Qionghai, People's Republic of China
| | - He Chen
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou, People's Republic of China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
- Hainan Institute of Real World Data, Qionghai, People's Republic of China
| | - Zicheng Zhang
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou, People's Republic of China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
- Hainan Institute of Real World Data, Qionghai, People's Republic of China
| | - Siqi Bao
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou, People's Republic of China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
- Hainan Institute of Real World Data, Qionghai, People's Republic of China
| | - Jia Qu
- School of Biomedical Engineering, School of Information and Communication Engineering, Hainan University, Haikou, People's Republic of China
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
- Hainan Institute of Real World Data, Qionghai, People's Republic of China
| | - Meng Zhou
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, People's Republic of China
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13
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Garcia-Fernandez H, Arenas-de Larriva AP, Lopez-Moreno J, Gutierrez-Mariscal FM, Romero-Cabrera JL, Molina-Abril H, Torres-Peña JD, Rodriguez-Cano D, Malagon MM, Ordovas JM, Delgado-Lista J, Perez-Martinez P, Lopez-Miranda J, Camargo A. Sex-specific differences in intestinal microbiota associated with cardiovascular diseases. Biol Sex Differ 2024; 15:7. [PMID: 38243297 PMCID: PMC10797902 DOI: 10.1186/s13293-024-00582-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 01/03/2024] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Cardiovascular diseases (CVD), including coronary heart disease (CHD), display a higher prevalence in men than women. This study aims to evaluate the variations in the intestinal microbiota between men and women afflicted with CHD and delineate these against a non-CVD control group for each sex. METHODS Our research was conducted in the framework of the CORDIOPREV study, a clinical trial which involved 837 men and 165 women with CHD. We contrasted our findings with a reference group of 375 individuals (270 men, 105 women) without CVD. The intestinal microbiota was examined through 16S metagenomics on the Illumina MiSeq platform and the data processed with Quiime2 software. RESULTS Our results showed a sex-specific variation (beta diversity) in the intestinal microbiota, while alpha-biodiversity remained consistent across both sexes. Linear discriminant analysis effect size (LEfSe) analysis revealed sex-centric alterations in the intestinal microbiota linked to CVD. Moreover, using random forest (RF) methodology, we identified seven bacterial taxa-g_UBA1819 (Ruminococcaceae), g_Bilophila, g_Subdoligranulum, g_Phascolarctobacterium, f_Barnesiellaceae, g_Ruminococcus, and an unknown genus from the Ruminococcaceae family (Ruminococcaceae incertae sedis)-as key discriminators between men and women diagnosed with CHD. The same taxa also emerged as critical discriminators between CHD-afflicted and non-CVD individuals, when analyzed separately by sex. CONCLUSION Our findings suggest a sex-specific dysbiosis in the intestinal microbiota linked to CHD, potentially contributing to the sex disparity observed in CVD incidence. Trial registration Clinical Trials.gov.Identifier NCT00924937.
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Affiliation(s)
- Helena Garcia-Fernandez
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
| | - Antonio P Arenas-de Larriva
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
| | - Javier Lopez-Moreno
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
| | - Francisco M Gutierrez-Mariscal
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Juan L Romero-Cabrera
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
| | | | - Jose D Torres-Peña
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Maria M Malagon
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Cell Biology, Physiology, and Immunology, University of Cordoba, Cordoba, Spain
| | - Jose M Ordovas
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Nutrition and Genomics Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
- IMDEA Food Institute, Madrid, Spain
| | - Javier Delgado-Lista
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Pablo Perez-Martinez
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Jose Lopez-Miranda
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain.
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain.
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain.
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Antonio Camargo
- Lipids and Atherosclerosis Unit, Department of Internal Medicine, Hospital Universitario Reina Sofía, Cordoba, Spain.
- Department of Medical and Surgical Sciences, Universidad de Cordoba, Cordoba, Spain.
- Maimonides Institute for Biomedical Research in Cordoba (IMIBIC), Cordoba, Spain.
- CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain.
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14
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Siu PLK, Choy CT, Chan HHY, Leung RKK, Chan UK, Zhou J, Wong CH, Lee YW, Chan HW, Lo CJY, Tsui JCC, Loo SKF, Tsui SKW. A Novel Multi-Strain E3 Probiotic Formula Improved the Gastrointestinal Symptoms and Quality of Life in Chinese Psoriasis Patients. Microorganisms 2024; 12:208. [PMID: 38276193 PMCID: PMC10820679 DOI: 10.3390/microorganisms12010208] [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: 12/21/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
Psoriasis is a chronic immune-mediated inflammatory disease affecting the skin and other systems. Gastrointestinal disease was found to be correlated with psoriasis in previous studies and it can significantly affect the quality of life of psoriasis patients. Despite the importance of the gut microbiome in gut and skin health having already been demonstrated in many research studies, the potential effect of probiotics on GI comorbidities in psoriasis patients is unclear. To investigate the effects of probiotics on functional GI comorbidities including irritable bowel syndrome, functional constipation, and functional diarrhea in psoriasis patients, we conducted a targeted 16S rRNA sequencing and comprehensive bioinformatic analysis among southern Chinese patients to compare the gut microbiome profiles of 45 psoriasis patients over an 8-week course of novel oral probiotics. All the participants were stratified into responders and non-responders according to their improvement in GI comorbidities, which were based on their Bristol Stool Form Scale (BSFS) scores after intervention. The Dermatological Life Quality Index (DLQI) score revealed a significant improvement in quality of life within the responder group (DLQI: mean 10.4 at week 0 vs. mean 15.9 at week 8, p = 0.0366). The proportion of psoriasis patients without GI comorbidity manifestation at week 8 was significantly higher than that at week 0 (week 0: Normal 53.33%, Constipation/Diarrhea 46.67%; week 8: Normal 75.56%, Constipation/Diarrhea 24.44%, p = 0.0467). In addition, a significant difference in the gut microbiome composition between the responders and non-responders was observed according to alpha and beta diversities. Differential abundance analysis revealed that the psoriasis patients exhibited (1) an elevated relative abundance of Lactobacillus acidophilus, Parabacteroides distasonis, and Ruminococcus bromii and (2) a reduced relative abundance of Oscillibacter, Bacteroides vulgatus, Escherichia sp., and Biophila wadsworthia after the 8-week intervention. The responders also exhibited a higher relative abundance of Fusicatenibacter saccharivorans when compared to the non-responders. In summary, our study discovers the potential clinical improvement effects of the novel probiotic formula in improving GI comorbidities and quality of life in psoriasis patients. We also revealed the different gut microbiome composition as well as the gut microbial signatures in the patients who responded to probiotics. These findings could provide insight into the use of probiotics in the management of psoriasis symptoms.
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Affiliation(s)
- Pui Ling Kella Siu
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Chi Tung Choy
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Helen Hoi Yin Chan
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Ross Ka Kit Leung
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Un Kei Chan
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Junwei Zhou
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Chi Ho Wong
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Yuk Wai Lee
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Ho Wang Chan
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Claudia Jun Yi Lo
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Joseph Chi Ching Tsui
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
| | - Steven King Fan Loo
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
- Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Dermatology Centre, CUHK Medical Centre, The Chinese University of Hong Kong, Hong Kong, China
| | - Stephen Kwok Wing Tsui
- Microbiome Research Centre, BioMed Laboratory Company Limited, Hong Kong, China; (P.L.K.S.)
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Centre for Microbial Genomics and Proteomics, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong, China
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15
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Tikunov AY, Fedorets VA, Shrainer EV, Morozov VV, Bystrova VI, Tikunova NV. Intestinal Microbiome Changes and Clinical Outcomes of Patients with Ulcerative Colitis after Fecal Microbiota Transplantation. J Clin Med 2023; 12:7702. [PMID: 38137770 PMCID: PMC10743744 DOI: 10.3390/jcm12247702] [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: 11/09/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND AND AIMS Ulcerative colitis (UC) is a chronic inflammatory disease that affects many people. One of the possible ways to treat UC is fecal microbiota transplantation (FMT). In this study, changes in the intestinal microbiome and clinical outcomes of 20 patients with UC after FMT were estimated. METHODS FMT enemas were administrated ten times, once a day, and fecal microbiota from three donors was used for each enema. The clinical outcomes were assessed after eight weeks and then via a patient survey. The 16S rRNA profiles of the gut microbiota were compared between three samplings: samples from 20 patients with UC before and after FMT and samples from 18 healthy volunteers. RESULTS Clinical remission was achieved in 19 (95%) patients at week 8. Adverse events occurred in five patients, including one non-responder. A significant increase in average biodiversity was shown in samples after FMT compared to samples before FMT, as well as a decrease in the proportion of some potentially pathogenic bacteria. CONCLUSION The efficacy of FMT for UC treatment was confirmed; however, the duration of remission varied substantially, possibly due to different characteristics of the initial microbiota of patients. Targeted analysis of a patient's microbiome before FMT could increase the treatment efficacy.
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Affiliation(s)
- Artem Y. Tikunov
- Federal State Public Scientific Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.Y.T.); (V.A.F.); (E.V.S.); (V.V.M.); (V.I.B.)
| | - Valeria A. Fedorets
- Federal State Public Scientific Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.Y.T.); (V.A.F.); (E.V.S.); (V.V.M.); (V.I.B.)
| | - Evgenia V. Shrainer
- Federal State Public Scientific Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.Y.T.); (V.A.F.); (E.V.S.); (V.V.M.); (V.I.B.)
- Department of Obstetrics and Gynecology, V. Zelman Institute for Medicine and Psychology, Novosibirsk National Research State University, 630090 Novosibirsk, Russia
| | - Vitaliy V. Morozov
- Federal State Public Scientific Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.Y.T.); (V.A.F.); (E.V.S.); (V.V.M.); (V.I.B.)
| | - Valeria I. Bystrova
- Federal State Public Scientific Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.Y.T.); (V.A.F.); (E.V.S.); (V.V.M.); (V.I.B.)
- Department of Obstetrics and Gynecology, V. Zelman Institute for Medicine and Psychology, Novosibirsk National Research State University, 630090 Novosibirsk, Russia
| | - Nina V. Tikunova
- Federal State Public Scientific Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.Y.T.); (V.A.F.); (E.V.S.); (V.V.M.); (V.I.B.)
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16
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Zhao J, Hou Y, Xie T, Zhu Y, Feng X, Zhang Y, Yang Z, Gong W. Genome-wide Mendelian randomization identifies putatively causal gut microbiota for multiple peptic ulcer diseases. Front Immunol 2023; 14:1260780. [PMID: 37869000 PMCID: PMC10586326 DOI: 10.3389/fimmu.2023.1260780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/04/2023] [Indexed: 10/24/2023] Open
Abstract
Objective The pathogenesis of peptic ulcer diseases (PUDs) involves multiple factors, and the contribution of gut microbiota to this process remains unclear. While previous studies have associated gut microbiota with peptic ulcers, the precise nature of the relationship, whether causal or influenced by biases, requires further elucidation. Design The largest meta-analysis of genome-wide association studies was conducted by the MiBioGen consortium, which provided the summary statistics of gut microbiota for implementation in the Mendelian randomization (MR) analysis. Summary statistics for five types of PUDs were compiled using the FinnGen Consortium R8 release data. Various statistical techniques, including inverse variance weighting (IVW), MR-Egger, weighted median (WM), weighted mode, and simple mode, were employed to assess the causal relationships between gut microbiota and these five PUDs. Result In the intestinal microbiome of 119 known genera, we found a total of 14 causal associations with various locations of PUDs and reported the potential pathogenic bacteria of Bilophila et al. Among them, four had causal relationships with esophageal ulcer, one with gastric ulcer, three with gastroduodenal ulcer, four with duodenal ulcer, and two with gastrojejunal ulcer. Conclusion In this study, the pathogenic bacterial genera in the gut microbiota that promote the occurrence of PUDs were found to be causally related. There are multiple correlations between intestinal flora and PUDs, overlapping PUDs have overlapping associated genera. The variance in ulcer-related bacterial genera across different locations underscores the potential influence of anatomical locations and physiological functions.
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Affiliation(s)
- Jingwei Zhao
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Yucheng Hou
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Tianyi Xie
- Laboratory of Medical Science, School of Medicine, Nantong University, Nantong, Jiangsu, China
| | - Yizhang Zhu
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xinyi Feng
- Department of Gastroenterology, Wuzhong People’s Hospital of Suzhou, Suzhou, China
| | - Yong Zhang
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Ziyi Yang
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
| | - Wei Gong
- Department of General Surgery, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Biliary Tract Disease Research, Shanghai, China
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17
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Bishehsari F, Drees M, Adnan D, Sharma D, Green S, Koshy J, Giron LB, Goldman A, Abdel-Mohsen M, Rasmussen HE, Miller GE, Keshavarzian A. Multi-omics approach to socioeconomic disparity in metabolic syndrome reveals roles of diet and microbiome. Proteomics 2023; 23:e2300023. [PMID: 37525324 DOI: 10.1002/pmic.202300023] [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: 01/18/2023] [Revised: 06/23/2023] [Accepted: 07/10/2023] [Indexed: 08/02/2023]
Abstract
The epidemy of metabolic syndrome (MetS) is typically preceded by adoption of a "risky" lifestyle (e.g., dietary habit) among populations. Evidence shows that those with low socioeconomic status (SES) are at an increased risk for MetS. To investigate this, we recruited 123 obese subjects (body mass index [BMI] ≥ 30) from Chicago. Multi-omic data were collected to interrogate fecal microbiota, systemic markers of inflammation and immune activation, plasma metabolites, and plasma glycans. Intestinal permeability was measured using the sugar permeability testing. Our results suggest a heterogenous metabolic dysregulation among obese populations who are at risk of MetS. Systemic inflammation, linked to poor diet, intestinal microbiome dysbiosis, and gut barrier dysfunction may explain the development of MetS in these individuals. Our analysis revealed 37 key features associated with increased numbers of MetS features. These features were used to construct a composite metabolic-inflammatory (MI) score that was able to predict progression of MetS among at-risk individuals. The MI score was correlated with several markers of poor diet quality as well as lower levels of gut microbial diversity and abnormalities in several species of bacteria. This study reveals novel targets to reduce the burden of MetS and suggests access to healthy food options as a practical intervention.
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Affiliation(s)
- Faraz Bishehsari
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois, USA
| | - Michael Drees
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois, USA
| | - Darbaz Adnan
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois, USA
| | - Deepak Sharma
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois, USA
| | - Stefan Green
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois, USA
| | - Jane Koshy
- The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Leila B Giron
- The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Aaron Goldman
- The Wistar Institute, Philadelphia, Pennsylvania, USA
| | | | | | - Gregory E Miller
- Institute for Policy Research and Dept of Psychology, Northwestern Univ, Evanston, Illinois, USA
| | - Ali Keshavarzian
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois, USA
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18
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Ye H, Borusak S, Eberl C, Krasenbrink J, Weiss AS, Chen SC, Hanson BT, Hausmann B, Herbold CW, Pristner M, Zwirzitz B, Warth B, Pjevac P, Schleheck D, Stecher B, Loy A. Ecophysiology and interactions of a taurine-respiring bacterium in the mouse gut. Nat Commun 2023; 14:5533. [PMID: 37723166 PMCID: PMC10507020 DOI: 10.1038/s41467-023-41008-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 08/21/2023] [Indexed: 09/20/2023] Open
Abstract
Taurine-respiring gut bacteria produce H2S with ambivalent impact on host health. We report the isolation and ecophysiological characterization of a taurine-respiring mouse gut bacterium. Taurinivorans muris strain LT0009 represents a new widespread species that differs from the human gut sulfidogen Bilophila wadsworthia in its sulfur metabolism pathways and host distribution. T. muris specializes in taurine respiration in vivo, seemingly unaffected by mouse diet and genotype, but is dependent on other bacteria for release of taurine from bile acids. Colonization of T. muris in gnotobiotic mice increased deconjugation of taurine-conjugated bile acids and transcriptional activity of a sulfur metabolism gene-encoding prophage in other commensals, and slightly decreased the abundance of Salmonella enterica, which showed reduced expression of galactonate catabolism genes. Re-analysis of metagenome data from a previous study further suggested that T. muris can contribute to protection against pathogens by the commensal mouse gut microbiota. Together, we show the realized physiological niche of a key murine gut sulfidogen and its interactions with selected gut microbiota members.
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Affiliation(s)
- Huimin Ye
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
- Doctoral School in Microbiology and Environmental Science, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Sabrina Borusak
- Department of Biology and Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany
| | - Claudia Eberl
- Max-von-Pettenkofer Institute, Ludwig Maximilian University Munich, Munich, Germany
| | - Julia Krasenbrink
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
- Doctoral School in Microbiology and Environmental Science, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Anna S Weiss
- Max-von-Pettenkofer Institute, Ludwig Maximilian University Munich, Munich, Germany
| | - Song-Can Chen
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Buck T Hanson
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
- Austrian Competence Centre for Feed and Food Quality, Safety and Innovation FFoQSI GmbH, Tulln, Austria
- Institute of Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Bela Hausmann
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Craig W Herbold
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
- Te Kura Pūtaiao Koiora, School of Biological Sciences, Te Whare Wānanga o Waitaha, University of Canterbury, Christchurch, New Zealand
| | - Manuel Pristner
- Department of Food Chemistry and Toxicology, University of Vienna, Vienna, Austria
| | - Benjamin Zwirzitz
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
- Austrian Competence Centre for Feed and Food Quality, Safety and Innovation FFoQSI GmbH, Tulln, Austria
- Institute of Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
- Institute of Food Science, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Benedikt Warth
- Department of Food Chemistry and Toxicology, University of Vienna, Vienna, Austria
- Exposome Austria, Research Infrastructure and National EIRENE Hub, Vienna, Austria
| | - Petra Pjevac
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
| | - David Schleheck
- Department of Biology and Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany
| | - Bärbel Stecher
- Max-von-Pettenkofer Institute, Ludwig Maximilian University Munich, Munich, Germany
- German Center for Infection Research (DZIF), partner site Ludwig Maximilian University Munich, Munich, Germany
| | - Alexander Loy
- Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria.
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria.
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19
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Elizabeth George S, Wan Y. Microbial functionalities and immobilization of environmental lead: Biogeochemical and molecular mechanisms and implications for bioremediation. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131738. [PMID: 37285788 PMCID: PMC11249206 DOI: 10.1016/j.jhazmat.2023.131738] [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: 02/11/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
The increasing environmental and human health concerns about lead in the environment have stimulated scientists to search for microbial processes as innovative bioremediation strategies for a suite of different contaminated media. In this paper, we provide a compressive synthesis of existing research on microbial mediated biogeochemical processes that transform lead into recalcitrant precipitates of phosphate, sulfide, and carbonate, in a genetic, metabolic, and systematics context as they relate to application in both laboratory and field immobilization of environmental lead. Specifically, we focus on microbial functionalities of phosphate solubilization, sulfate reduction, and carbonate synthesis related to their respective mechanisms that immobilize lead through biomineralization and biosorption. The contributions of specific microbes, both single isolates or consortia, to actual or potential applications in environmental remediation are discussed. While many of the approaches are successful under carefully controlled laboratory conditions, field application requires optimization for a host of variables, including microbial competitiveness, soil physical and chemical parameters, metal concentrations, and co-contaminants. This review challenges the reader to consider bioremediation approaches that maximize microbial competitiveness, metabolism, and the associated molecular mechanisms for future engineering applications. Ultimately, we outline important research directions to bridge future scientific research activities with practical applications for bioremediation of lead and other toxic metals in environmental systems.
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Affiliation(s)
- S Elizabeth George
- US EPA Office of Research and Development, Center for Environmental Measurement and Modeling, Gulf Ecosystem Measurement and Modeling Division, One Sabine Island Drive, Gulf Breeze, FL 32561, USA
| | - Yongshan Wan
- US EPA Office of Research and Development, Center for Environmental Measurement and Modeling, Gulf Ecosystem Measurement and Modeling Division, One Sabine Island Drive, Gulf Breeze, FL 32561, USA.
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20
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Lazzaro A, Colorado ASB, Neff CP, Nusbacher N, Boyd K, Fiorillo S, Martin C, Siebert J, Campbell T, Borok M, Palmer B, Lozupone C. Antiretroviral treatment is less effective at reducing gut microbiome-associated inflammation and T cell activation in people living with HIV in rural versus urban Zimbabwe. RESEARCH SQUARE 2023:rs.3.rs-3300723. [PMID: 37693491 PMCID: PMC10491326 DOI: 10.21203/rs.3.rs-3300723/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
The widespread availability of antiretroviral therapy (ART) for people living with HIV (PLWH) has dramatically reduced mortality and improved life expectancy. However, even with suppression of HIV-1 replication, chronic immune activation and elevated inflammation persist. Chronic immune activation has been linked to a pro-inflammatory gut microbiome composition, exacerbated by compromised intestinal barrier integrity that occurs after HIV infection. Individuals living in urban versus rural areas of sub-Saharan Africa have differences in environmental factors such as water source or diet that may impact gut microbiome composition, yet immune phenotype and gut microbiome composition response to ART in PLWH living in rural versus urban areas of sub-Saharan Africa have not been compared. Here, we measured immune phenotypes and fecal microbiome composition in PLWH and healthy participants recruited from the urban Mabvuku polyclinic in the city of Harare, Zimbabwe and the Mutoko District hospital located in a district 146 km from Harare that services surrounding rural villages. PLWH were either ART naïve at baseline and sampled again after 24 weeks of treatment with efavirenz/lamivudine/tenofovir disoproxil fumarate (EFV/3TC/TDF) and the prophylactic antibiotic cotrimoxazole or were ART experienced at both timepoints. Although expected reductions in the inflammatory marker IL-6, T-cell activation, and exhaustion were observed in individuals who had suppressed HIV-1 with treatment, these changes were significant only when considering individuals in the urban and not the rural area. Gut microbiome composition showed more marked differences from healthy controls in the ART experienced compared to ART naïve cohort, and consistent longitudinal changes were also observed in ART naïve PLWH after 24 weeks of treatment, including a reduction in alpha diversity and altered composition. However, gut microbiome composition showed a more pronounced relationship with chronic immune activation and exhaustion phenotypes in the ART naïve compared to ART experienced PLWH, suggesting a particularly significant role for the gut microbiome in disease progression in uncontrolled infection.
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21
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Rutegård M, Tang A, Gregoire DJ, Stewart C, Hurt L, Chandler S, Hitchings MD, Healy B, Harris D. Oral antibiotics and mechanical bowel preparation for colorectal surgery: A prospective observational study of surgical site infection and microbial analysis. Int J Colorectal Dis 2023; 38:210. [PMID: 37555867 PMCID: PMC10412473 DOI: 10.1007/s00384-023-04497-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/29/2023] [Indexed: 08/10/2023]
Abstract
PURPOSE Surgical site infections (SSIs) are common in colorectal surgery. Mechanical bowel preparation (MBP) in conjunction with oral antibiotics (OABs) have been shown to reduce SSI rates. It however is still unclear which OABs to use, and how this can be implemented in practice. METHODS This is a prospective observational study carried out in Swansea Bay University Health Board during 2019-2021, evaluating the introduction of OABs in a stepwise manner on the incidence of SSI in major colorectal surgery. A control group having MBP only was compared to two OAB groups: one group had MBP plus metronidazole only and the second MBP plus metronidazole and neomycin. A 30-day follow-up after surgery was ascertained via chart review and telephone contact. Logistic regression was performed to estimate the relation between OAB use and SSI, with adjustment for confounding. In a subset of patients, faecal samples were analysed through 16S rRNA amplicon sequencing before and after OAB treatment, depicting the impact of the gut microbiome. RESULTS In total 160 patients were analysed: 46 patients had MBP only, whilst 76 patients had MBP plus metronidazole only and 38 patients had MBP with metronidazole/neomycin. The SSI rate in the entire cohort was 33.8%, whilst the adjusted ORs for the single- and dual-OAB groups were 0.76 (95% CI: 0.17-1.81) and 0.50 (95% CI: 0.17-1.52). The microbial analysis demonstrated that the relative abundance for many bacterial genera was changed before and after OAB treatment, but no link with SSI development could be shown. CONCLUSIONS Introduction of OABs in conjunction with MBP in colorectal surgery is feasible, and may potentially lead to lower rates of SSI, as well as altering the community structure of the faecal microbiome. More research is needed, especially considering different OABs and mechanistic studies of the gut microbiome in the context of colorectal surgery.
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Affiliation(s)
- Martin Rutegård
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK.
- Department of Surgical and Perioperative Sciences, Surgery, Umeå University, Umeå, Sweden.
| | - Alethea Tang
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK
- Faculty of Medicine, Health and Life Sciences, Swansea University, Swansea, UK
| | - Darren James Gregoire
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK
| | - Christopher Stewart
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK
| | - Libor Hurt
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK
| | - Susan Chandler
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK
| | | | - Brendan Healy
- Public Health Wales, Swansea Bay University Health Board, Swansea, UK
| | - Dean Harris
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK
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22
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Eudy BJ, Odle J, Lin X, Maltecca C, Walter KR, McNulty NP, Fellner V, Jacobi SK. Dietary Prebiotic Oligosaccharides and Arachidonate Alter the Fecal Microbiota and Mucosal Lipid Composition of Suckling Pigs. J Nutr 2023; 153:2249-2262. [PMID: 37348760 DOI: 10.1016/j.tjnut.2023.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/09/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND Early intestinal development is important to infant vitality, and optimal formula composition can promote gut health. OBJECTIVES The objectives were to evaluate the effects of arachidonate (ARA) and/or prebiotic oligosaccharide (PRE) supplementation in formula on the development of the microbial ecosystem and colonic health parameters. METHODS Newborn piglets were fed 4 formulas containing ARA [0.5 compared with 2.5% of dietary fatty acids (FAs)] and PRE (0 compared with 8 g/L, containing a 1:1 mixture of galactooligosaccharides and polydextrose) in a 2 x 2 factorial design for 22 d. Fecal samples were collected weekly and analyzed for relative microbial abundance. Intestinal samples were collected on day 22 and analyzed for mucosal FAs, pH, and short-chain FAs (SCFAs). RESULTS PRE supplementation significantly increased genera within Bacteroidetes and Firmicutes, including Anaerostipes, Mitsuokella, Prevotella, Clostridium IV, and Bulleidia, and resulted in progressive separation from controls as determined by Principal Coordinates Analysis. Concentrations of SCFA increased from 70.98 to 87.37 mM, with an accompanying reduction in colonic pH. ARA supplementation increased the ARA content of the colonic mucosa from 2.35-5.34% of total FAs. PRE supplementation also altered mucosal FA composition, resulting in increased linoleic acid (11.52-16.33% of total FAs) and ARA (2.35-5.16% of total FAs). CONCLUSIONS Prebiotic supplementation during the first 22 d of life altered the gut microbiota of piglets and increased the abundance of specific bacterial genera. These changes correlated with increased SCFA, which may benefit intestinal development. Although dietary ARA did not alter the microbiota, it increased the ARA content of the colonic mucosa, which may support intestinal development and epithelial repair. Prebiotic supplementation also increased unsaturation of FAs in the colonic mucosa. Although the mechanism requires further investigation, it may be related to altered microbial ecology or biohydrogenation of FA.
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Affiliation(s)
- Brandon J Eudy
- Department of Animal Science and Laboratory of Developmental Nutrition, North Carolina State University, Raleigh, NC, United States
| | - Jack Odle
- Department of Animal Science and Laboratory of Developmental Nutrition, North Carolina State University, Raleigh, NC, United States.
| | - Xi Lin
- Department of Animal Science and Laboratory of Developmental Nutrition, North Carolina State University, Raleigh, NC, United States
| | - Christian Maltecca
- Department of Animal Science and Laboratory of Developmental Nutrition, North Carolina State University, Raleigh, NC, United States
| | - Kathleen R Walter
- Department of Animal Science and Laboratory of Developmental Nutrition, North Carolina State University, Raleigh, NC, United States
| | - Nathan P McNulty
- Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, United States
| | - Vivek Fellner
- Department of Animal Science and Laboratory of Developmental Nutrition, North Carolina State University, Raleigh, NC, United States
| | - Sheila K Jacobi
- Department of Animal Sciences, The Ohio State University, Columbus, OH, United States.
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23
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Daddi L, Dorsett Y, Geng T, Bokoliya S, Yuan H, Wang P, Xu W, Zhou Y. Baseline Gut Microbiome Signatures Correlate with Immunogenicity of SARS-CoV-2 mRNA Vaccines. Int J Mol Sci 2023; 24:11703. [PMID: 37511464 PMCID: PMC10380288 DOI: 10.3390/ijms241411703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/01/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
The powerful immune responses elicited by the mRNA vaccines targeting the SARS-CoV-2 Spike protein contribute to their high efficacy. Yet, their efficacy can vary greatly between individuals. For vaccines not based on mRNA, cumulative evidence suggests that differences in the composition of the gut microbiome, which impact vaccine immunogenicity, are some of the factors that contribute to variations in efficacy. However, it is unclear if the microbiome impacts the novel mode of immunogenicity of the SARS-CoV-2 mRNA vaccines. We conducted a prospective longitudinal cohort study of individuals receiving SARS-CoV-2 mRNA vaccines where we measured levels of anti-Spike IgG and characterized microbiome composition, at pre-vaccination (baseline), and one week following the first and second immunizations. While we found that microbial diversity at all timepoints correlated with final IgG levels, only at baseline did microbial composition and predicted function correlate with vaccine immunogenicity. Specifically, the phylum Desulfobacterota and genus Bilophila, producers of immunostimulatory LPS, positively correlated with IgG, while Bacteroides was negatively correlated. KEGG predicted pathways relating to SCFA metabolism and sulfur metabolism, as well as structural components such as flagellin and capsular polysaccharides, also positively correlated with IgG levels. Consistent with these findings, depleting the microbiome with antibiotics reduced the immunogenicity of the BNT162b2 vaccine in mice. These findings suggest that gut microbiome composition impacts the immunogenicity of the SARS-CoV-2 mRNA vaccines.
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Affiliation(s)
- Lauren Daddi
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Yair Dorsett
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Tingting Geng
- Department of Immunology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Suresh Bokoliya
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Hanshu Yuan
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Penghua Wang
- Department of Immunology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, CT 06269, USA
| | - Yanjiao Zhou
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
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24
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Pérez-Rubio Á, Soluyanova P, Moro E, Quintás G, Rienda I, Periañez MD, Painel A, Vizuete J, Pérez-Rojas J, Castell JV, Trullenque-Juan R, Pareja E, Jover R. Gut Microbiota and Plasma Bile Acids Associated with Non-Alcoholic Fatty Liver Disease Resolution in Bariatric Surgery Patients. Nutrients 2023; 15:3187. [PMID: 37513605 PMCID: PMC10385764 DOI: 10.3390/nu15143187] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/29/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Bariatric surgery (BS) has several benefits, including resolution of non-alcoholic fatty liver disease (NAFLD) in many patients. However, a significant percentage of patients do not experience improvement in fatty liver after BS, and more than 10% develop new or worsening NAFLD features. Therefore, a question that remains unanswered is why some patients experience resolved NAFLD after BS and others do not. In this study, we investigated the fecal microbiota and plasma bile acids associated with NAFLD resolution in twelve morbidly obese patients undergoing BS, of whom six resolved their steatosis one year after surgery and another six did not. Results indicate that the hallmark of the gut microbiota in responder patients is a greater abundance of Bacteroides, Akkermansia, and several species of the Clostridia class (genera: Blautia, Faecalibacterium, Roseburia, Butyricicoccusa, and Clostridium), along with a decreased abundance of Actinomycetes/Bifidobacterium and Faecalicatena. NAFLD resolution was also associated with a sustained increase in primary bile acids (particularly non-conjugated), which likely results from a reduction in bacterial gut species capable of generating secondary bile acids. We conclude that there are specific changes in gut microbiota and plasma bile acids that could contribute to resolving NAFLD in BS patients. The knowledge acquired can help to design interventions with prebiotics and/or probiotics to promote a gut microbiome that favors NAFLD resolution.
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Affiliation(s)
- Álvaro Pérez-Rubio
- Servicio de Cirugía General y Aparato Digestivo, Hospital Universitario Dr. Peset, 46017 Valencia, Spain
| | - Polina Soluyanova
- Experimental Hepatology Joint Unit, Health Research Institute La Fe-University of Valencia, 46026 Valencia, Spain
- Departamento de Bioquímica y Biología Molecular, Universitat de València, 46010 Valencia, Spain
| | - Erika Moro
- Experimental Hepatology Joint Unit, Health Research Institute La Fe-University of Valencia, 46026 Valencia, Spain
- Departamento de Bioquímica y Biología Molecular, Universitat de València, 46010 Valencia, Spain
| | - Guillermo Quintás
- Health and Biomedicine, Leitat Technological Center, 08225 Terrassa, Spain
| | - Iván Rienda
- Pathology Department, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
| | - María Dolores Periañez
- Servicio de Cirugía General y Aparato Digestivo, Hospital Universitario Dr. Peset, 46017 Valencia, Spain
| | - Andrés Painel
- Section of Abdominal Imaging, Radiology Department, Hospital Universitario Dr. Peset, 46017 Valencia, Spain
| | - José Vizuete
- Section of Abdominal Imaging, Radiology Department, Hospital Universitario Dr. Peset, 46017 Valencia, Spain
| | - Judith Pérez-Rojas
- Pathology Department, Hospital Universitario y Politécnico La Fe, 46026 Valencia, Spain
| | - José V Castell
- Experimental Hepatology Joint Unit, Health Research Institute La Fe-University of Valencia, 46026 Valencia, Spain
- Departamento de Bioquímica y Biología Molecular, Universitat de València, 46010 Valencia, Spain
- CIBERehd, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Ramón Trullenque-Juan
- Servicio de Cirugía General y Aparato Digestivo, Hospital Universitario Dr. Peset, 46017 Valencia, Spain
| | - Eugenia Pareja
- Servicio de Cirugía General y Aparato Digestivo, Hospital Universitario Dr. Peset, 46017 Valencia, Spain
- Experimental Hepatology Joint Unit, Health Research Institute La Fe-University of Valencia, 46026 Valencia, Spain
| | - Ramiro Jover
- Experimental Hepatology Joint Unit, Health Research Institute La Fe-University of Valencia, 46026 Valencia, Spain
- Departamento de Bioquímica y Biología Molecular, Universitat de València, 46010 Valencia, Spain
- CIBERehd, Instituto de Salud Carlos III, 28029 Madrid, Spain
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Singh SV, Ganguly R, Jaiswal K, Yadav AK, Kumar R, Pandey AK. Molecular signalling during cross talk between gut brain axis regulation and progression of irritable bowel syndrome: A comprehensive review. World J Clin Cases 2023; 11:4458-4476. [PMID: 37469740 PMCID: PMC10353503 DOI: 10.12998/wjcc.v11.i19.4458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 05/09/2023] [Accepted: 06/06/2023] [Indexed: 06/30/2023] Open
Abstract
Irritable bowel syndrome (IBS) is a chronic functional disorder which alters gastrointestinal (GI) functions, thus leading to compromised health status. Pathophysiology of IBS is not fully understood, whereas abnormal gut brain axis (GBA) has been identified as a major etiological factor. Recent studies are suggestive for visceral hyper-sensitivity, altered gut motility and dysfunctional autonomous nervous system as the main clinical abnormalities in IBS patients. Bidirectional signalling interactions among these abnormalities are derived through various exogenous and endogenous factors, such as microbiota population and diversity, microbial metabolites, dietary uptake, and psychological abnormalities. Strategic efforts focused to study these interactions including probiotics, antibiotics and fecal transplantations in normal and germ-free animals are clearly suggestive for the pivotal role of gut microbiota in IBS etiology. Additionally, neurotransmitters act as communication tools between enteric microbiota and brain functions, where serotonin (5-hydroxytryptamine) plays a key role in pathophysiology of IBS. It regulates GI motility, pain sense and inflammatory responses particular to mucosal and brain activity. In the absence of a better understanding of various interconnected crosstalks in GBA, more scientific efforts are required in the search of novel and targeted therapies for the management of IBS. In this review, we have summarized the gut microbial composition, interconnected signalling pathways and their regulators, available therapeutics, and the gaps needed to fill for a better management of IBS.
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Affiliation(s)
- Shiv Vardan Singh
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj) 211002, Uttar Pradesh, India
| | - Risha Ganguly
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj) 211002, Uttar Pradesh, India
| | - Kritika Jaiswal
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj) 211002, Uttar Pradesh, India
| | - Aditya Kumar Yadav
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj) 211002, Uttar Pradesh, India
| | - Ramesh Kumar
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj) 211002, Uttar Pradesh, India
| | - Abhay K Pandey
- Department of Biochemistry, University of Allahabad, Allahabad (Prayagraj) 211002, Uttar Pradesh, India
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Aziz S, Waqas M, Iqbal A, Halim SA, Abdellattif MH, Khan A, Al-Harrasi A. Structure-based identification of potential substrate antagonists for isethionate sulfite-lyase enzyme of Bilophila Wadsworthia: Towards novel therapeutic intervention to curb gut-associated illness. Int J Biol Macromol 2023; 240:124428. [PMID: 37062383 DOI: 10.1016/j.ijbiomac.2023.124428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/09/2023] [Indexed: 04/18/2023]
Abstract
Bilophila wadsworthia is one of the prominent sources of hydrogen sulfide (H2S) production in appendices, excessive levels of which can result in a weaker colonic mucus barrier, inflammatory bowel disease, and colorectal cancer. Isethionate sulfite-lyase (IslA) enzyme catalyzes H2S production by cleaving CS bond in isethionate, producing acetaldehyde and sulfite. In this study, we aimed to identify potential substrate antagonists for IsIA using a structure-based drug design. Initially, pharmacophore-based computational screening of the ZINC20 database yielded 66 hits that were subjected to molecular docking targeting the isethionate binding site of IsIA. Based on striking docking scores, nine compounds showed strong interaction with critical IsIA residues (Arg189, Gln193, Glu470, Cys468, and Arg678), drug-like features, appropriate adsorption, metabolism, excretion, and excretion profile with non-toxicity. Molecular dynamics simulations uncovered the significant impact of binding the compounds on protein conformational dynamics. Finally, binding free energies revealed substantial binding affinity (ranging from -35.23 to -53.88 kcal/mol) of compounds (ZINC913876497, ZINC913856647, ZINC914263733, ZINC914137795, ZINC915757996, ZINC914357083, ZINC913934833, ZINC9143362047, and ZINC913854740) for IsIA. The compounds proposed herein through a multi-faceted computational strategy can be experimentally validated as potential substrate antagonists of B. wadsworthia's IsIA for developing new medications to curb gut-associated illness in the future.
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Affiliation(s)
- Shahkaar Aziz
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Muhammad Waqas
- Department of Biotechnology and Genetic Engineering, Hazara University, Mansehra, Pakistan; Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman
| | - Aqib Iqbal
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan; Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan.
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman
| | - Magda H Abdellattif
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman.
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat-ul-Mouz, Nizwa, Oman.
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Cabello-Olmo M, Oneca M, Urtasun R, Pajares MJ, Goñi S, Riezu-Boj JI, Milagro FI, Ayo J, Encio IJ, Barajas M, Araña M. Pediococcus acidilactici pA1c ® Improves the Beneficial Effects of Metformin Treatment in Type 2 Diabetes by Controlling Glycaemia and Modulating Intestinal Microbiota. Pharmaceutics 2023; 15:pharmaceutics15041203. [PMID: 37111688 PMCID: PMC10143274 DOI: 10.3390/pharmaceutics15041203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/21/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Type 2 diabetes (T2D) is a complex metabolic disease, which involves maintained hyperglycemia, mainly due to the development of an insulin resistance process. Metformin administration is the most prescribed treatment for diabetic patients. In a previously published study, we demonstrated that Pediococcus acidilactici pA1c® (pA1c) protects from insulin resistance and body weight gain in HFD-induced diabetic mice. The present work aimed to evaluate the possible beneficial impact of a 16-week administration of pA1c, metformin, or the combination of pA1c and metformin in a T2D HFD-induced mice model. We found that the simultaneous administration of both products attenuated hyperglycemia, increased high-intensity insulin-positive areas in the pancreas and HOMA-β, decreased HOMA-IR and also provided more beneficial effects than metformin treatment (regarding HOMA-IR, serum C-peptide level, liver steatosis or hepatic Fasn expression), and pA1c treatment (regarding body weight or hepatic G6pase expression). The three treatments had a significant impact on fecal microbiota and led to differential composition of commensal bacterial populations. In conclusion, our findings suggest that P. acidilactici pA1c® administration improved metformin beneficial effects as a T2D treatment, and it would be a valuable therapeutic strategy to treat T2D.
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Affiliation(s)
- Miriam Cabello-Olmo
- Biochemistry Area, Department of Health Science, Public University of Navarre, 31008 Pamplona, Spain
| | - María Oneca
- Genbioma Aplicaciones S.L. Polígono Industrial Noain-Esquíroz, Calle S, Nave 4, 31191 Esquíroz, Spain
| | - Raquel Urtasun
- Biochemistry Area, Department of Health Science, Public University of Navarre, 31008 Pamplona, Spain
| | - María J Pajares
- Biochemistry Area, Department of Health Science, Public University of Navarre, 31008 Pamplona, Spain
- IDISNA Navarra's Health Research Institute, 31008 Pamplona, Spain
| | - Saioa Goñi
- Biochemistry Area, Department of Health Science, Public University of Navarre, 31008 Pamplona, Spain
| | - José I Riezu-Boj
- IDISNA Navarra's Health Research Institute, 31008 Pamplona, Spain
- Center for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain
| | - Fermín I Milagro
- IDISNA Navarra's Health Research Institute, 31008 Pamplona, Spain
- Center for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Josune Ayo
- Genbioma Aplicaciones S.L. Polígono Industrial Noain-Esquíroz, Calle S, Nave 4, 31191 Esquíroz, Spain
| | - Ignacio J Encio
- Biochemistry Area, Department of Health Science, Public University of Navarre, 31008 Pamplona, Spain
| | - Miguel Barajas
- Biochemistry Area, Department of Health Science, Public University of Navarre, 31008 Pamplona, Spain
| | - Miriam Araña
- Biochemistry Area, Department of Health Science, Public University of Navarre, 31008 Pamplona, Spain
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Cannon AR, Anderson LJ, Galicia K, Murray MG, Kamran AS, Li X, Gonzalez RP, Choudhry MA. TRAUMATIC BRAIN INJURY-INDUCED INFLAMMATION AND GASTROINTESTINAL MOTILITY DYSFUNCTION. Shock 2023; 59:621-626. [PMID: 36645886 PMCID: PMC10065904 DOI: 10.1097/shk.0000000000002082] [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: 01/18/2023]
Abstract
ABSTRACT Background: Traumatic brain injury (TBI) is a significant cause of morbidity and mortality in the United States, with an annual cost of 60 billion dollars. There is evidence suggesting that in the post-TBI period, the gastrointestinal tract plays a central role in driving organ and immune dysfunction and may be the source of increased circulating proinflammatory mediators. In this study, we examined systemic inflammation and bacterial dysbiosis in patients who sustained a TBI with or without polytrauma. Using a mouse model of TBI, we further show how neuroinflammation after TBI is potentially linked to disruptions in gut homeostasis such as intestinal transit and inflammation. Methods: During a study of trauma patients performed from September 1, 2018, to September 1, 2019, at a single, level 1 trauma center, TBI patients aged 21 to 95 years were enrolled. Patients were categorized as TBI based on evidence of acute abnormal findings on head computed tomographic scan, which was a combination of isolated TBI and TBI with polytrauma. Blood and stool samples were collected between 24 h and 3 days after admission. Twelve plasma samples and 10 fecal samples were used for this study. Healthy control samples were obtained from a healthy control biobank. We examined systemic inflammation and bacterial changes in patients who sustained a TBI. In addition, TBI was induced in 9- to 10-week-old male mice; we assessed neuroinflammation, and intestine transit (motility) and bacterial changes 24 h after TBI. Results: When compared with healthy controls, TBI patients had increased systemic inflammation as evidenced by increased levels of IFN-γ and MCP-1 and a trend toward an increase of IL-6 and IL-8 ( P = 0.0551 and P = 0.0549), respectively. The anti-inflammatory cytokine, IL-4, was also decreased in TBI patients. Although there was a trend of an increase in copy number of Enterobacteriaceae and a decrease in copy number of Lactobacillus in both patients and mice after TBI, these trends were not found to be significantly different. However, TBI significantly increased the copy number of another potential pathogenic bacteria Bilophila wadsworthia in TBI patients compared with healthy controls. After a moderate TBI, mice had increased expression of TNF-α, IL-6 and IL-1β, CXCL1, s100a9, and Ly6G and decreased IL-10 in the brain lesion after TBI. This accompanied decreased transit and increased TNF-α in the small intestine of mice after TBI. Conclusions: Our findings suggest that TBI increases systemic inflammation, intestinal dysfunction, and neuroinflammation. More studies are needed to confirm whether changes in intestinal motility play a role in post-TBI neuroinflammation and cognitive deficit.
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Affiliation(s)
- Abigail R. Cannon
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
| | - Lillian J. Anderson
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
| | - Kevin Galicia
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
| | - Mary Grace Murray
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
| | - Aadil S. Kamran
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
| | - Xiaoling Li
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
| | - Richard P. Gonzalez
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
| | - Mashkoor A. Choudhry
- Burn & Shock Trauma Research Institute, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Alcohol Research Program, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Surgery, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
- Department of Microbiology and Immunology, Loyola University Chicago Health Sciences Division, Maywood, Illinois, USA
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Rinninella E, Tohumcu E, Raoul P, Fiorani M, Cintoni M, Mele MC, Cammarota G, Gasbarrini A, Ianiro G. The role of diet in shaping human gut microbiota. Best Pract Res Clin Gastroenterol 2023; 62-63:101828. [PMID: 37094913 DOI: 10.1016/j.bpg.2023.101828] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 04/26/2023]
Abstract
Gut microbiota plays a fundamental role within human health, and exerts key functions within the human body. Diet is one of the most powerful modulators of gut microbiota functions and composition. This complex interplay involves also the immune system and the intestinal barrier, highlighting the central role of diet in the pathogenesis and treatment of multiple diseases. In this review article we will paint the landscape of the effects of specific dietary nutrients, and of the detrimental or beneficial outcomes of different dietary patterns, on the composition of human gut microbiota. Moreover, we will discuss the potential application of diet as a therapeutic modulator of gut microbiota, including cutting-edge ways of exploitation, including the use of dietary components as adjuvants to promote microbial engraftment after fecal microbiota transplantation, or personalized nutritional approaches, targeted to the patient microbiome.
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Affiliation(s)
- Emanuele Rinninella
- Department of Medical and Surgical Sciences, Clinical Nutrition Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Ege Tohumcu
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy; Department of Medical and Surgical Sciences, Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Pauline Raoul
- Department of Medical and Surgical Sciences, Clinical Nutrition Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Marcello Fiorani
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy; Department of Medical and Surgical Sciences, Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Marco Cintoni
- Department of Medical and Surgical Sciences, Clinical Nutrition Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maria Cristina Mele
- Department of Medical and Surgical Sciences, Clinical Nutrition Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giovanni Cammarota
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy; Department of Medical and Surgical Sciences, Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Antonio Gasbarrini
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy; Department of Medical and Surgical Sciences, Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Gianluca Ianiro
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy; Department of Medical and Surgical Sciences, Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy.
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Abjani F, Madhavan P, Chong PP, Chinna K, Rhodes CA, Lim YAL. Urbanisation and its Associated Factors Affecting Human Gut Microbiota: Where are we Heading to? Ann Hum Biol 2023; 50:137-147. [PMID: 36650931 DOI: 10.1080/03014460.2023.2170464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
ContextThe continuous rise in urbanisation and its associated factors have been reflected in the structure of the human gut ecosystem.ObjectiveThe main focus of the review is to discuss and summarise the major risk factors associated with urbanisation that affects human gut microbiota thus affecting human health.MethodsMultiple medical literature databases, namely PubMed, Google, Google Scholar, and Web of Science were used to find relevant materials for urbanization and its major factors affecting human gut microbiota/microbiome. Both layman and Medical Subject Headings (MeSH) terms were used in the search. Due to the scarcity of the data, no limitation was set on the publication date. Relevant material in the English language which includes case reports, chapters of books, journal articles, online news reports and medical records was included in this review.ResultsBased on the data discussed in the review, it is quite clear that urbanisation and its associated factors have long-standing effects on the human gut microbiota that result in alterations of gut microbial diversity and composition. This is a matter of serious concern as chronic inflammatory diseases are on the rise in urbanised societies.ConclusionA better understanding of the factors associated with urbanisation will help us to identify and implement new biological and social approaches to prevent and treat diseases and improve health globally by deepening our understanding of these relationships and increasing studies across urbanisation gradients.HIGHLIGHTSHuman gut microbiota has been linked to almost every important function, including metabolism, intestinal homeostasis, immune system, biosynthesis of vitamins, brain processes, and its behaviour.However, dysbiosis i.e., alteration in the composition and diversity of gut microbiota is associated with the pathogenesis of many chronic conditions.In the 21st century, urbanisation represents a major demographic shift in developed and developing countries.During this period of urbanisation, humans have been exposed to many environmental exposures, all of which have led to the dysbiosis of human gut microbiota.The main focus of the review is to discuss and summarize the major risk factors associated with urbanisation and how it affects the diversity and composition of gut microbiota which ultimately affects human health.
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Affiliation(s)
- Farhat Abjani
- School of Biosciences, Faculty of Health & Medical Sciences, Taylor's University, Jalan Taylors, 47500 Subang Jaya, Selangor, Malaysia
| | - Priya Madhavan
- School of Medicine, Faculty of Health & Medical Sciences, Taylor's University, Jalan Taylors, 47500 Subang Jaya, Selangor, Malaysia
| | - Pei Pei Chong
- School of Biosciences, Faculty of Health & Medical Sciences, Taylor's University, Jalan Taylors, 47500 Subang Jaya, Selangor, Malaysia
| | - Karuthan Chinna
- Faculty of Business and Management, UCSI University 56100 Cheras, Kuala Lumpur, Malaysia
| | - Charles Anthony Rhodes
- Department of Parasitology, University Malaya Medical Centre, 50603 Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
| | - Yvonne Ai Lian Lim
- Department of Parasitology, Faculty of Medicine, University of Malaya. 50603 Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
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Kulecka M, Fraczek B, Balabas A, Czarnowski P, Zeber-Lubecka N, Zapala B, Baginska K, Glowienka M, Szot M, Skorko M, Kluska A, Piatkowska M, Mikula M, Ostrowski J. Characteristics of the gut microbiome in esports players compared with those in physical education students and professional athletes. Front Nutr 2023; 9:1092846. [PMID: 36726816 PMCID: PMC9884692 DOI: 10.3389/fnut.2022.1092846] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/30/2022] [Indexed: 01/18/2023] Open
Abstract
Introduction Esports is a category of competitive video games that, in many aspects, may be similar to traditional sports; however, the gut microbiota composition of players has not been yet studied. Materials and methods Here, we investigated the composition and function of the gut microbiota, as well as short chain fatty acids (SCFAs), and amino acids, in a group of 109 well-characterized Polish male esports players. The results were compared with two reference groups: 25 endurance athletes and 36 healthy students of physical education. DNA and metabolites isolated from fecal samples were analyzed using shotgun metagenomic sequencing and mass spectrometry, respectively. Physical activity and nutritional measures were evaluated by questionnaire. Results Although anthropometric, physical activity and nutritional measures differentiated esports players from students, there were no differences in bacterial diversity, the Bacteroidetes/Firmicutes ratio, the composition of enterotype clusters, metagenome functional content, or SCFA concentrations. However, there were significant differences between esports players and students with respect to nine bacterial species and nine amino acids. By contrast, all of the above-mentioned measures differentiated professional athletes from esports players and students, with 45 bacteria differentiating professional athletes from the former and 31 from the latter. The only species differentiating all three experimental groups was Parabacteroides distasonis, showing the lowest and highest abundance in esports players and athletes, respectively. Conclusion Our study confirms the marked impact of intense exercise training on gut microbial structure and function. Differences in lifestyle and dietary habits between esports players and physical education students appear to not have a major effect on the gut microbiota.
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Affiliation(s)
- Maria Kulecka
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland,Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Barbara Fraczek
- Department of Sports Medicine and Human Nutrition, Institute of Biomedical Sciences, University of Physical Education, Krakow, Poland
| | - Aneta Balabas
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Paweł Czarnowski
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland,Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children's Memorial Health Institute, Warsaw, Poland
| | - Natalia Zeber-Lubecka
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland,Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Barbara Zapala
- Department of Clinical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Katarzyna Baginska
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Maria Glowienka
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Monika Szot
- Department of Sports Dietetics, Gdansk University of Physical Education and Sport, Gdansk, Poland
| | - Maciek Skorko
- Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
| | - Anna Kluska
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Magdalena Piatkowska
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Michał Mikula
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Jerzy Ostrowski
- Department of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland,Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland,*Correspondence: Jerzy Ostrowski ✉
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George SE, Devereux R, James J, Wan Y, Diamond GL, Bradham KD, Thomas DJ. Dietary lead modulates the mouse intestinal microbiome: Subacute exposure to lead acetate and lead contaminated soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 249:114430. [PMID: 37192935 PMCID: PMC10181873 DOI: 10.1016/j.ecoenv.2022.114430] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The effect of dietary lead on the intestinal microbiome has not been fully elucidated. To determine if there was an association between microflora modulation, predicted functional genes, and Pb exposure, mice were provided diets amended with increasing concentrations of a single lead compound, lead acetate, or a well characterized complex reference soil containing lead, i.e. 6.25-25 mg/kg Pb acetate (PbOAc) or 7.5-30 mg/kg Pb in reference soil SRM 2710a having 0.552 % Pb among other heavy metals such as Cd. Feces and ceca were collected following 9 days of treatment and the microbiome analyzed by 16 S rRNA gene sequencing. Treatment effects on the microbiome were observed in both feces and ceca of mice. Changes in the cecal microbiomes of mice fed Pb as Pb acetate or as a constituent in SRM 2710a were statistically different except for a few exceptions regardless of dietary source. This was accompanied by increased average abundance of functional genes associated with metal resistance, including those related to siderophore synthesis and arsenic and/or mercury detoxification. Akkermansia, a common gut bacterium, was the highest ranked species in control microbiomes whereas Lactobacillus ranked highest in treated mice. Firmicutes/Bacteroidetes ratios in the ceca of SRM 2710a treated mice increased more than with PbOAc, suggestive of changes in gut microbiome metabolism that promotes obesity. Predicted functional gene average abundance related to carbohydrate, lipid, and/or fatty acid biosynthesis and degradation were greater in the cecal microbiome of SRM 2710a treated mice. Bacilli/Clostridia increased in the ceca of PbOAc treated mice and may be indicative of increased risk of host sepsis. Family Deferribacteraceae also was modulated by PbOAc or SRM 2710a possibly impacting inflammatory response. Understanding the relationship between microbiome composition, predicted functional genes, and Pb concentration, especially in soil, may provide new insights into the utility of various remediation methodologies that minimize dysbiosis and modulate health effects, thus assisting in the selection of an optimal treatment for contaminated sites.
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Affiliation(s)
- S. Elizabeth George
- U. S. Environmental Protection Agency, Office of Research & Development, Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, Gulf Breeze, FL 32561, United States
| | - Richard Devereux
- U. S. Environmental Protection Agency, Office of Research & Development, Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, Gulf Breeze, FL 32561, United States
| | - Joseph James
- U. S. Environmental Protection Agency, Office of Research & Development, Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, Gulf Breeze, FL 32561, United States
| | - Yongshan Wan
- U. S. Environmental Protection Agency, Office of Research & Development, Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, Gulf Breeze, FL 32561, United States
| | | | - Karen D. Bradham
- U. S. Environmental Protection Agency, Office of Research & Development, Center for Environmental Measurement & Modeling, Research Triangle Park, NC 27711, United States
| | - David J. Thomas
- U. S. Environmental Protection Agency, Office of Research & Development, Center for Computational Toxicology & Exposure, Chemical Characterization & Exposure Division, Research Triangle Park, NC 27711, United States
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Brown EL, Essigmann HT, Hoffman KL, Alexander AS, Newmark M, Jiang ZD, Suescun J, Schiess MC, Hanis CL, DuPont HL. IgA-Biome Profiles Correlate with Clinical Parkinson's Disease Subtypes. JOURNAL OF PARKINSON'S DISEASE 2023; 13:501-513. [PMID: 37212075 PMCID: PMC10357173 DOI: 10.3233/jpd-230066] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 05/23/2023]
Abstract
BACKGROUND Parkinson's disease is a heterogeneous neurodegenerative disorder with distinctive gut microbiome patterns suggesting that interventions targeting the gut microbiota may prevent, slow, or reverse disease progression and severity. OBJECTIVE Because secretory IgA (SIgA) plays a key role in shaping the gut microbiota, characterization of the IgA-Biome of individuals classified into either the akinetic rigid (AR) or tremor dominant (TD) Parkinson's disease clinical subtypes was used to further define taxa unique to these distinct clinical phenotypes. METHODS Flow cytometry was used to separate IgA-coated and -uncoated bacteria from stool samples obtained from AR and TD patients followed by amplification and sequencing of the V4 region of the 16 S rDNA gene on the MiSeq platform (Illumina). RESULTS IgA-Biome analyses identified significant alpha and beta diversity differences between the Parkinson's disease phenotypes and the Firmicutes/Bacteroides ratio was significantly higher in those with TD compared to those with AR. In addition, discriminant taxa analyses identified a more pro-inflammatory bacterial profile in the IgA+ fraction of those with the AR clinical subclass compared to IgA-Biome analyses of those with the TD subclass and with the taxa identified in the unsorted control samples. CONCLUSION IgA-Biome analyses underscores the importance of the host immune response in shaping the gut microbiome potentially affecting disease progression and presentation. In the present study, IgA-Biome analyses identified a unique proinflammatory microbial signature in the IgA+ fraction of those with AR that would have otherwise been undetected using conventional microbiome analysis approaches.
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Affiliation(s)
- Eric L. Brown
- Center for Infectious Diseases, Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Heather T. Essigmann
- Center for Infectious Diseases, Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Kristi L. Hoffman
- Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | | | | | - Zhi-Dong Jiang
- Center for Infectious Diseases, Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Jessika Suescun
- Department of Neurology/UTMOVE University of Texas McGovern Medical School, Houston, TX, USA
| | - Mya C. Schiess
- Department of Neurology/UTMOVE University of Texas McGovern Medical School, Houston, TX, USA
| | - Craig L. Hanis
- Human Genetics Center, Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Herbert L. DuPont
- Center for Infectious Diseases, Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
- Kelsey Research Foundation, Houston, TX, USA
- Department of Internal Medicine, University of Texas McGovern Medical School, Houston, TX, USA
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Impact of international travel and diarrhea on gut microbiome and resistome dynamics. Nat Commun 2022; 13:7485. [PMID: 36470885 PMCID: PMC9722912 DOI: 10.1038/s41467-022-34862-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 11/08/2022] [Indexed: 12/11/2022] Open
Abstract
International travel contributes to the global spread of antimicrobial resistance. Travelers' diarrhea exacerbates the risk of acquiring multidrug-resistant organisms and can lead to persistent gastrointestinal disturbance post-travel. However, little is known about the impact of diarrhea on travelers' gut microbiomes, and the dynamics of these changes throughout travel. Here, we assembled a cohort of 159 international students visiting the Andean city of Cusco, Peru and applied next-generation sequencing techniques to 718 longitudinally-collected stool samples. We find that gut microbiome composition changed significantly throughout travel, but taxonomic diversity remained stable. However, diarrhea disrupted this stability and resulted in an increased abundance of antimicrobial resistance genes that can remain high for weeks. We also identified taxa differentially abundant between diarrheal and non-diarrheal samples, which were used to develop a classification model that distinguishes between these disease states. Additionally, we sequenced the genomes of 212 diarrheagenic Escherichia coli isolates and found those from travelers who experienced diarrhea encoded more antimicrobial resistance genes than those who did not. In this work, we find the gut microbiomes of international travelers' are resilient to dysbiosis; however, they are also susceptible to colonization by multidrug-resistant bacteria, a risk that is more pronounced in travelers with diarrhea.
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Tong S, Zhang P, Cheng Q, Chen M, Chen X, Wang Z, Lu X, Wu H. The role of gut microbiota in gout: Is gut microbiota a potential target for gout treatment. Front Cell Infect Microbiol 2022; 12:1051682. [PMID: 36506033 PMCID: PMC9730829 DOI: 10.3389/fcimb.2022.1051682] [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: 09/23/2022] [Accepted: 11/11/2022] [Indexed: 11/25/2022] Open
Abstract
Numerous studies have demonstrated that gut microbiota is essential for the host's health because it regulates the host's metabolism, endocrine, and immune systems. In recent years, increasing evidence has shown that gut microbiota plays a role in the onset and progression of gout. Changes in the composition and metabolism of the gut microbiota, result in abnormalities of uric acid degradation, increasing uric acid generation, releasing pro-inflammatory mediators, and intestinal barrier damage in developing gout. As a result, gout therapy that targets gut microbiota has drawn significant interest. This review summarized how the gut microbiota contributes to the pathophysiology of gout and how gout affects the gut microbiota. Additionally, this study explained how gut microbiota might serve as a unique index for the diagnosis of gout and how conventional gout treatment medicines interact with it. Finally, prospective therapeutic approaches focusing on gut microbiota for the prevention and treatment of gout were highlighted, which may represent a future avenue in gout treatment.
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Affiliation(s)
| | | | | | | | | | | | - Xiaoyong Lu
- *Correspondence: Xiaoyong Lu, ; Huaxiang Wu,
| | - Huaxiang Wu
- *Correspondence: Xiaoyong Lu, ; Huaxiang Wu,
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36
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Vega L, Bohórquez L, Ramírez JD, Muñoz M. Do we need to change our perspective about gut biomarkers? A public data mining approach to identify differentially abundant bacteria in intestinal inflammatory diseases. Front Cell Infect Microbiol 2022; 12:918237. [PMID: 36478676 PMCID: PMC9719923 DOI: 10.3389/fcimb.2022.918237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 10/31/2022] [Indexed: 11/22/2022] Open
Abstract
Introduction The gut microbiome is involved in multiple processes that influence host physiology, and therefore, disruptions in microbiome homeostasis have been linked to diseases or secondary infections. Given the importance of the microbiome and the communities of microorganisms that compose it (microbiota), the term biomarkers were coined, which are bacteria correlated with disease states, diets, and the lifestyle of the host. However, a large field in the study of intestinal biomarkers remains unexplored because the bacterial communities associated with a given disease state have not been exactly defined yet. Methods Here, we analyzed public data of studies focused on describing the intestinal microbiota of patients with some intestinal inflammatory diseases together with their respective controls. With these analyses, we aimed to identify differentially abundant bacteria between the subjects with the disease and their controls. Results We found that frequently reported bacteria such as Fusobacterium, Streptococcus, and Escherichia/Shigella were differentially abundant between the groups, with a higher abundance mostly in patients with the disease in contrast with their controls. On the other hand, we also identified potentially beneficial bacteria such as Faecalibacterium and Phascolarctobacterium, with a higher abundance in control patients. Discussion Our results of the differentially abundant bacteria contrast with what was already reported in previous studies on certain inflammatory diseases, but we highlight the importance of considering more comprehensive approaches to redefine or expand the definition of biomarkers. For instance, the intra-taxa diversity within a bacterial community must be considered, as well as environmental and genetic factors of the host, and even consider a functional validation of these biomarkers through in vivo and in vitro approaches. With the above, these key bacterial communities in the intestinal microbiota may have potential as next-generation probiotics or may be functional for the design of specific therapies in certain intestinal diseases.
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Affiliation(s)
- Laura Vega
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Laura Bohórquez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Juan David Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia,Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Marina Muñoz
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia,*Correspondence: Marina Muñoz,
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O’Donnell M, Teasdale SB, Chua XY, Hardman J, Wu N, Curtis J, Samaras K, Bolton P, Morris MJ, Shannon Weickert C, Purves-Tyson T, El-Assaad F, Jiang XT, Hold GL, El-Omar E. The Role of the Microbiome in the Metabolic Health of People with Schizophrenia and Related Psychoses: Cross-Sectional and Pre-Post Lifestyle Intervention Analyses. Pathogens 2022; 11:1279. [PMID: 36365032 PMCID: PMC9695516 DOI: 10.3390/pathogens11111279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 03/20/2024] Open
Abstract
The microbiome has been implicated in the development of metabolic conditions which occur at high rates in people with schizophrenia and related psychoses. This exploratory proof-of-concept study aimed to: (i) characterize the gut microbiota in antipsychotic naïve or quasi-naïve people with first-episode psychosis, and people with established schizophrenia receiving clozapine therapy; (ii) test for microbiome changes following a lifestyle intervention which included diet and exercise education and physical activity. Participants were recruited from the Eastern Suburbs Mental Health Service, Sydney, Australia. Anthropometric, lifestyle and gut microbiota data were collected at baseline and following a 12-week lifestyle intervention. Stool samples underwent 16S rRNA sequencing to analyse microbiota diversity and composition. Seventeen people with established schizophrenia and five people with first-episode psychosis were recruited and matched with 22 age-sex, BMI and ethnicity matched controls from a concurrent study for baseline comparisons. There was no difference in α-diversity between groups at baseline, but microbial composition differed by 21 taxa between the established schizophrenia group and controls. In people with established illness pre-post comparison of α-diversity showed significant increases after the 12-week lifestyle intervention. This pilot study adds to the current literature that detail compositional differences in the gut microbiota of people with schizophrenia compared to those without mental illness and suggests that lifestyle interventions may increase gut microbial diversity in patients with established illness. These results show that microbiome studies are feasible in patients with established schizophrenia and larger studies are warranted to validate microbial signatures and understand the relevance of lifestyle change in the development of metabolic conditions in this population.
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Affiliation(s)
- Maryanne O’Donnell
- Discipline of Psychiatry and Mental Health, School of Medicine and Health, University of New South Wales, Kensington 2033, Australia
- Eastern Suburbs Mental Health Service, South Eastern Sydney Local Health District, Randwick 2031, Australia
| | - Scott B. Teasdale
- Discipline of Psychiatry and Mental Health, School of Medicine and Health, University of New South Wales, Kensington 2033, Australia
- Mindgardens Neuroscience Network, Sydney 2033, Australia
| | - Xin-Yi Chua
- Microbiome Research Centre, St George and Sutherland Clinical Campuses, University of New South Wales, Kogarah 2217, Australia
| | - Jamie Hardman
- Eastern Suburbs Mental Health Service, South Eastern Sydney Local Health District, Randwick 2031, Australia
| | - Nan Wu
- Microbiome Research Centre, St George and Sutherland Clinical Campuses, University of New South Wales, Kogarah 2217, Australia
- Department of Gastroenterology, The Sutherland Hospital, Caringbah 2229, Australia
| | - Jackie Curtis
- Discipline of Psychiatry and Mental Health, School of Medicine and Health, University of New South Wales, Kensington 2033, Australia
- Eastern Suburbs Mental Health Service, South Eastern Sydney Local Health District, Randwick 2031, Australia
- Mindgardens Neuroscience Network, Sydney 2033, Australia
| | - Katherine Samaras
- Department of Endocrinology, St Vincent’s Hospital Sydney, Victoria St, Darlinghurst 2010, Australia
- Clinical Obesity, Nutrition and Adipose Biology Lab, 384 Garvan Institute of Medical Research, Victoria St, Darlinghurst 2010, Australia
- School of Clinical Medicine, St Vincent’s Healthcare Clinical Campus, University of New South Wales, Darlinghurst 2010, Australia
| | - Patrick Bolton
- Eastern Suburbs Mental Health Service, South Eastern Sydney Local Health District, Randwick 2031, Australia
- School of Public Health, University of New South Wales, Kensington 2033, Australia
| | - Margaret J. Morris
- School of Medical Sciences, University of New South Wales, Kensington 2033, Australia
| | - Cyndi Shannon Weickert
- Discipline of Psychiatry and Mental Health, School of Medicine and Health, University of New South Wales, Kensington 2033, Australia
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Sydney 2033, Australia
- Department of Neuroscience and Physiology, Upstate Medical University, Syracuse, NY 13210, USA
| | - Tertia Purves-Tyson
- Discipline of Psychiatry and Mental Health, School of Medicine and Health, University of New South Wales, Kensington 2033, Australia
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Sydney 2033, Australia
| | - Fatima El-Assaad
- Microbiome Research Centre, St George and Sutherland Clinical Campuses, University of New South Wales, Kogarah 2217, Australia
| | - Xiao-Tao Jiang
- Microbiome Research Centre, St George and Sutherland Clinical Campuses, University of New South Wales, Kogarah 2217, Australia
| | - Georgina L. Hold
- Microbiome Research Centre, St George and Sutherland Clinical Campuses, University of New South Wales, Kogarah 2217, Australia
| | - Emad El-Omar
- Microbiome Research Centre, St George and Sutherland Clinical Campuses, University of New South Wales, Kogarah 2217, Australia
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Zhao Y, Li Z, Zhao L, Wang J, Wang F, Zhang Q, Wang X, Sang Y, Zhan J, He J, Li N, Kang X, Chen J, Wang R. Two novel lactic acid bacteria, Limosilactobacillus fermentum MN-LF23 and Lactobacillus gasseri MN-LG80, inhibited Helicobacter pylori infection in C57BL/6 mice. Food Funct 2022; 13:11061-11069. [PMID: 36197065 DOI: 10.1039/d2fo02034c] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
Helicobacter pylori (H. pylori) is one of the most prevalent pathogens globally, and long-term infection causes various gastrointestinal diseases such as gastritis and even cancer. In the present study, we screened dozens of lactic acid bacteria for the efficacy to inhibit H. pylori growth in vitro, and tested the therapeutic effects of candidate strains in vivo. The results showed that Limosilactobacillus fermentum MN-LF23 (LF23) and Lactobacillus gasseri MN-LG80 (LG80) significantly reduced the abundance of Helicobacter by 90% and 83% in the infected mice, respectively, and decreased the levels of serum urease and H. pylori-specific IgG. Both bacterial strains tended to ameliorate H. pylori infection-induced gastric mucosa damage and lymphocyte infiltration, and reduced levels of serum inflammatory cytokines such as TNF-α, IL-1β, and IL-6. In addition, their culture supernatants also showed a therapeutic effect, as efficient as the bacterial cells. Furthermore, both strains significantly regulated gastric microbiota profile, and their supernatants restored the diversity of gastric microbiota. LF23 increased the abundance of Lactobacillus murinus and reduced the abundance of Desulfovibrio, whereas LG80 increased the abundance of Lactobacillus reuteri and reduced the abundance of Bilophila. Both LF23 and LG80 enriched beneficial commensals such as Faecalibaculum rodentium, and reduced detrimental bacteria such as H. pylori and Lachnoclostridium. In conclusion, we identified two novel lactic acid bacteria L. fermentum MN-LF23 and L. gasseri MN-LG80 that can remarkably inhibit H. pylori infection.
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Affiliation(s)
- Yuyang Zhao
- College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, China Agricultural University, Beijing 100083, China
| | - Zhipeng Li
- R&D Center, Inner Mongolia Mengniu Dairy (Group) Co. Ltd., Huhhot, 011500, Inner Mongolia, China.
- Shanghai Mengniu Biotechnology R&D Co., Ltd., 201210, Shanghai, China
| | - Liang Zhao
- College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, China Agricultural University, Beijing 100083, China
| | - Jian Wang
- College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, China Agricultural University, Beijing 100083, China
| | - Fan Wang
- R&D Center, Inner Mongolia Mengniu Dairy (Group) Co. Ltd., Huhhot, 011500, Inner Mongolia, China.
- Shanghai Mengniu Biotechnology R&D Co., Ltd., 201210, Shanghai, China
| | - Qi Zhang
- College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, China Agricultural University, Beijing 100083, China
| | - Xiaoyu Wang
- College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, China Agricultural University, Beijing 100083, China
| | - Yue Sang
- Hebei Engineering Research Center of Animal Product, Sanhe 065200, China
| | - Jing Zhan
- Department of Nutrition and Health, China Agricultural University, Beijing 100190, China.
| | - Jingjing He
- Department of Nutrition and Health, China Agricultural University, Beijing 100190, China.
| | - Ning Li
- R&D Center, Inner Mongolia Mengniu Dairy (Group) Co. Ltd., Huhhot, 011500, Inner Mongolia, China.
| | - Xiaohong Kang
- R&D Center, Inner Mongolia Mengniu Dairy (Group) Co. Ltd., Huhhot, 011500, Inner Mongolia, China.
- Shanghai Mengniu Biotechnology R&D Co., Ltd., 201210, Shanghai, China
| | - Jianguo Chen
- R&D Center, Inner Mongolia Mengniu Dairy (Group) Co. Ltd., Huhhot, 011500, Inner Mongolia, China.
- Shanghai Mengniu Biotechnology R&D Co., Ltd., 201210, Shanghai, China
| | - Ran Wang
- Department of Nutrition and Health, China Agricultural University, Beijing 100190, China.
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The Effects of Physical Activity on the Gut Microbiota and the Gut–Brain Axis in Preclinical and Human Models: A Narrative Review. Nutrients 2022; 14:nu14163293. [PMID: 36014798 PMCID: PMC9413457 DOI: 10.3390/nu14163293] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/10/2022] [Accepted: 08/10/2022] [Indexed: 11/17/2022] Open
Abstract
Increasing evidence supports the importance of the gut microbiota (GM) in regulating multiple functions related to host physical health and, more recently, through the gut–brain axis (GBA), mental health. Similarly, the literature on the impact of physical activity (PA), including exercise, on GM and GBA is growing. Therefore, this narrative review summarizes and critically appraises the existing literature that delves into the benefits or adverse effects produced by PA on physical and mental health status through modifications of the GM, highlighting differences and similarities between preclinical and human studies. The same exercise in animal models, whether performed voluntarily or forced, has different effects on the GM, just as, in humans, intense endurance exercise can have a negative influence. In humans and animals, only aerobic PA seems able to modify the composition of the GM, whereas cardiovascular fitness appears related to specific microbial taxa or metabolites that promote a state of physical health. The PA favors bacterial strains that can promote physical performance and that can induce beneficial changes in the brain. Currently, it seems useful to prioritize aerobic activities at a moderate and not prolonged intensity. There may be greater benefits if PA is undertaken from a young age and the effects on the GM seem to gradually disappear when the activity is stopped. The PA produces modifications in the GM that can mediate and induce mental health benefits.
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Wang B, Liu J, Lei R, Xue B, Li Y, Tian X, Zhang K, Luo B. Cold exposure, gut microbiota, and hypertension: A mechanistic study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 833:155199. [PMID: 35417730 DOI: 10.1016/j.scitotenv.2022.155199] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Cold exposure has been recognized as an important risk factor for hypertension, and altered gut microbiota has been reported to be associated with hypertension. We hypothesized that there is a plausible relationship between gut microbiota and cold-induced hypertension (CIH). Therefore, we explored the potential link between the gut microbiota and its metabolites with CIH. Male Sprague-Dawley (SD) rats were randomly divided into the normal temperature group (NT, 20 ± 2 °C) and the cold exposure group (CE, 4 ± 1 °C), and faecal bacteria cross-transplantation was performed after six weeks. We analyzed the gut microbiota of rats using the 16S rDNA sequence and measured the blood pressure of rats and the content of short-chain fatty acids in rat faeces. After six weeks of cold exposure, the CIH rat model was successfully established. The cold exposure reduced the diversity of the gut microbiota, increased the abundance of potentially pathogenic and conditionally pathogenic bacteria (e.g., Quinella, Rothia, and Senegalimassilia genera), and reduced the abundance of beneficial bacteria (e.g., Lactobacillus genus) and butyric acid-producing bacteria (e.g., Lachnospiraceae UCG-008 and Ruminococcaceae UCG-013 genera). Faecal bacteria cross-transplantation altered gut microbiota composition and regulated blood pressure levels. The NT group rats transplanted with CIH rats' faecal bacteria were enriched with certain conditional pathogenic bacteria such as Prevotellaceae UCG-003 genus. The CIH rats transplanted with faecal bacteria from the NT group rats were enriched with beneficial bacteria such as Bacteroides genus. In addition, we found a significant reduction in butyric acid levels in CIH rats, which may be related to the increase in blood pressure. In conclusion, CIH is associated with altered gut microbiota and reduced butyric acid. Our findings provide novel insights for the prevention and treatment of CIH by modulating the gut microbiota through supplementation of beneficial bacteria/butyrate.
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Affiliation(s)
- Bo Wang
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Jiangtao Liu
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Ruoyi Lei
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Baode Xue
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Yanlin Li
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Xiaoyu Tian
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Kai Zhang
- Department of Environmental Health Sciences, School of Public Health, University at Albany, State University of New York, One University Place, Rensselaer, NY 12144, USA.
| | - Bin Luo
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China.
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Xing C, Du Y, Duan T, Nim K, Chu J, Wang HY, Wang RF. Interaction between microbiota and immunity and its implication in colorectal cancer. Front Immunol 2022; 13:963819. [PMID: 35967333 PMCID: PMC9373904 DOI: 10.3389/fimmu.2022.963819] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer-related death in the world. Besides genetic causes, colonic inflammation is one of the major risk factors for CRC development, which is synergistically regulated by multiple components, including innate and adaptive immune cells, cytokine signaling, and microbiota. The complex interaction between CRC and the gut microbiome has emerged as an important area of current CRC research. Metagenomic profiling has identified a number of prominent CRC-associated bacteria that are enriched in CRC patients, linking the microbiota composition to colitis and cancer development. Some microbiota species have been reported to promote colitis and CRC development in preclinical models, while a few others are identified as immune modulators to induce potent protective immunity against colitis and CRC. Mechanistically, microbiota regulates the activation of different immune cell populations, inflammation, and CRC via crosstalk between innate and adaptive immune signaling pathways, including nuclear factor kappa B (NF-κB), type I interferon, and inflammasome. In this review, we provide an overview of the potential interactions between gut microbiota and host immunity and how their crosstalk could synergistically regulate inflammation and CRC, thus highlighting the potential roles and mechanisms of gut microbiota in the development of microbiota-based therapies to prevent or alleviate colitis and CRC.
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Affiliation(s)
- Changsheng Xing
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Yang Du
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Tianhao Duan
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Kelly Nim
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Junjun Chu
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Helen Y. Wang
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Rong-Fu Wang
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Department of Pediatrics, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
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Bauer KC, Littlejohn PT, Ayala V, Creus-Cuadros A, Finlay BB. Nonalcoholic Fatty Liver Disease and the Gut-Liver Axis: Exploring an Undernutrition Perspective. Gastroenterology 2022; 162:1858-1875.e2. [PMID: 35248539 DOI: 10.1053/j.gastro.2022.01.058] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 12/31/2021] [Accepted: 01/07/2022] [Indexed: 02/08/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a chronic condition affecting one quarter of the global population. Although primarily linked to obesity and metabolic syndrome, undernutrition and the altered (dysbiotic) gut microbiome influence NAFLD progression. Both undernutrition and NAFLD prevalence are predicted to considerably increase, but how the undernourished gut microbiome contributes to hepatic pathophysiology remains far less studied. Here, we present undernutrition conditions with fatty liver features, including kwashiorkor and micronutrient deficiency. We then review the gut microbiota-liver axis, highlighting key pathways linked to NAFLD progression within both overnutrition and undernutrition. To conclude, we identify challenges and collaborative possibilities of emerging multiomic research addressing the pathology and treatment of undernourished NAFLD.
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Affiliation(s)
- Kylynda C Bauer
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada; Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada; Thoracic and Gastrointestinal Malignancies Branch, National Institutes of Health, National Cancer Institute, Center for Cancer Research, Bethesda, Maryland
| | - Paula T Littlejohn
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada; Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Victoria Ayala
- Institut de Recerca Biomèdica de Lleida (IRB-Lleida), Lleida, Spain; Department of Experimental Medicine, Universitat de Lleida, Lleida, Spain
| | - Anna Creus-Cuadros
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada
| | - B Brett Finlay
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada; Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada; Biochemistry and Molecular Biology Department, University of British Columbia, Vancouver, British Columbia, Canada.
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Zheng H, Ji H, Fan K, Xu H, Huang Y, Zheng Y, Xu Q, Li C, Zhao L, Li Y, Gao H. Targeting Gut Microbiota and Host Metabolism with Dendrobium officinale Dietary Fiber to Prevent Obesity and Improve Glucose Homeostasis in Diet-Induced Obese Mice. Mol Nutr Food Res 2022; 66:e2100772. [PMID: 35225418 DOI: 10.1002/mnfr.202100772] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/29/2021] [Indexed: 12/26/2022]
Abstract
SCOPE Obesity is becoming a major public health problem due to excess dietary fat intake. Dendrobium officinale (D. officinale) is a medicine food homology plant and exerts multiple health-promoting effects. However, its antiobesity effects and the potential mechanisms remain unclear. METHODS AND RESULTS High-fat diet (HFD)-fed mice are administered D. officinale dietary fiber (DODF) daily by gavage for 11 weeks. The results show that treatment with DODF alleviates obesity, liver steatosis, inflammation, and oxidant stress in HFD-induced obese mice. Improved glucose homeostasis in obese mice after DODF treatment is achieved by enhancing insulin pathway and hepatic glycogen synthesis. DODF restructures the gut microbiota in obese mice by decreasing the relative abundance of Bilophila and increasing the relative abundances of Akkermansia, Bifidobacterium, and Muribaculum. Also, DODF reshapes the metabolic phenotype of obese mice as indicated by up-regulating energy metabolism, increasing acetate and taurine, and reducing serum low density/very low density lipoproteins (LDL/VLDL). These beneficial effects are partly transferred by FMT, implying the gut microbiota as a target for the protective effect of DODF on obesity-related symptoms. CONCLUSION The results suggest that DODF can be used as a novel prebiotics to maintain the gut microbial homeostasis and improve metabolic health, preventing obesity and related metabolic syndrome.
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Affiliation(s)
- Hong Zheng
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Department of Endocrinology, Pingyang Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325400, China
| | - Hui Ji
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Kai Fan
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Hangying Xu
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yinli Huang
- Department of Endocrinology, Pingyang Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325400, China
| | - Yafei Zheng
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Qingqing Xu
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Chen Li
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Liangcai Zhao
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yuping Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Hongchang Gao
- Institute of Metabonomics & Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
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Gill PA, Inniss S, Kumagai T, Rahman FZ, Smith AM. The Role of Diet and Gut Microbiota in Regulating Gastrointestinal and Inflammatory Disease. Front Immunol 2022; 13:866059. [PMID: 35450067 PMCID: PMC9016115 DOI: 10.3389/fimmu.2022.866059] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/14/2022] [Indexed: 12/20/2022] Open
Abstract
Diet is an important lifestyle factor that is known to contribute in the development of human disease. It is well established that poor diet plays an active role in exacerbating metabolic diseases, such as obesity, diabetes and hypertension. Our understanding of how the immune system drives chronic inflammation and disease pathogenesis has evolved in recent years. However, the contribution of dietary factors to inflammatory conditions such as inflammatory bowel disease, multiple sclerosis and arthritis remain poorly defined. A western diet has been associated as pro-inflammatory, in contrast to traditional dietary patterns that are associated as being anti-inflammatory. This may be due to direct effects of nutrients on immune cell function. Diet may also affect the composition and function of gut microbiota, which consequently affects immunity. In animal models of inflammatory disease, diet may modulate inflammation in the gastrointestinal tract and in other peripheral sites. Despite limitations of animal models, there is now emerging evidence to show that anti-inflammatory effects of diet may translate to human gastrointestinal and inflammatory diseases. However, appropriately designed, larger clinical studies must be conducted to confirm the therapeutic benefit of dietary therapy.
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Affiliation(s)
- Paul A Gill
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Saskia Inniss
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Tomoko Kumagai
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | - Farooq Z Rahman
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom.,Department of Gastroenterology, University College London Hospitals National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Andrew M Smith
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London, London, United Kingdom
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Zeybel M, Arif M, Li X, Altay O, Yang H, Shi M, Akyildiz M, Saglam B, Gonenli MG, Yigit B, Ulukan B, Ural D, Shoaie S, Turkez H, Nielsen J, Zhang C, Uhlén M, Borén J, Mardinoglu A. Multiomics Analysis Reveals the Impact of Microbiota on Host Metabolism in Hepatic Steatosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104373. [PMID: 35128832 PMCID: PMC9008426 DOI: 10.1002/advs.202104373] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/22/2021] [Indexed: 05/03/2023]
Abstract
Metabolic dysfunction-associated fatty liver disease (MAFLD) is a complex disease involving alterations in multiple biological processes regulated by the interactions between obesity, genetic background, and environmental factors including the microbiome. To decipher hepatic steatosis (HS) pathogenesis by excluding critical confounding factors including genetic variants and diabetes, 56 heterogenous MAFLD patients are characterized by generating multiomics data including oral and gut metagenomics as well as plasma metabolomics and inflammatory proteomics data. The dysbiosis in the oral and gut microbiome is explored and the host-microbiome interactions based on global metabolic and inflammatory processes are revealed. These multiomics data are integrated using the biological network and HS's key features are identified using multiomics data. HS is finally predicted using these key features and findings are validated in a follow-up cohort, where 22 subjects with varying degree of HS are characterized.
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Affiliation(s)
- Mujdat Zeybel
- Department of Gastroenterology and HepatologySchool of MedicineKoç UniversityIstanbul34010Turkey
- NIHR Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust & University of NottinghamNottinghamNG5 1PBUK
- Nottingham Digestive Diseases CentreSchool of MedicineUniversity of NottinghamNottinghamNG7 2UHUK
| | - Muhammad Arif
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
- Present address:
Laboratory of Cardiovascular Physiology and Tissue Injury and Section on Fibrotic DisordersNational Institute on Alcohol Abuse and Alcoholism, National Institutes of HealthRockvilleMD20852USA
| | - Xiangyu Li
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
| | - Ozlem Altay
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
| | - Hong Yang
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
| | - Mengnan Shi
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
| | - Murat Akyildiz
- Department of Gastroenterology and HepatologySchool of MedicineKoç UniversityIstanbul34010Turkey
| | - Burcin Saglam
- Department of Gastroenterology and HepatologySchool of MedicineKoç UniversityIstanbul34010Turkey
| | - Mehmet Gokhan Gonenli
- Department of Gastroenterology and HepatologySchool of MedicineKoç UniversityIstanbul34010Turkey
| | - Buket Yigit
- Department of Gastroenterology and HepatologySchool of MedicineKoç UniversityIstanbul34010Turkey
| | - Burge Ulukan
- Department of Gastroenterology and HepatologySchool of MedicineKoç UniversityIstanbul34010Turkey
| | - Dilek Ural
- School of MedicineKoç UniversityIstanbul34010Turkey
| | - Saeed Shoaie
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
- Centre for Host‐Microbiome InteractionsFaculty of Dentistry, Oral & Craniofacial SciencesKing's College LondonLondonSE1 9RTUK
| | - Hasan Turkez
- Department of Medical BiologyFaculty of MedicineAtatürk UniversityErzurum25240Turkey
| | - Jens Nielsen
- Department of Biology and Biological EngineeringChalmers University of TechnologyGothenburgSE‐41296Sweden
| | - Cheng Zhang
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
- Key Laboratory of Advanced Drug Preparation TechnologiesMinistry of EducationSchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouHenan Province450001China
| | - Mathias Uhlén
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
| | - Jan Borén
- Department of Molecular and Clinical MedicineUniversity of Gothenburg and Sahlgrenska University Hospital GothenburgGothenburgSE‐41345Sweden
| | - Adil Mardinoglu
- Science for Life LaboratoryKTH – Royal Institute of TechnologyStockholmSE‐17121Sweden
- Centre for Host‐Microbiome InteractionsFaculty of Dentistry, Oral & Craniofacial SciencesKing's College LondonLondonSE1 9RTUK
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Xu Y, Zhong F, Zheng X, Lai HY, Wu C, Huang C. Disparity of Gut Microbiota Composition Among Elite Athletes and Young Adults With Different Physical Activity Independent of Dietary Status: A Matching Study. Front Nutr 2022; 9:843076. [PMID: 35369075 PMCID: PMC8975590 DOI: 10.3389/fnut.2022.843076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/27/2022] [Indexed: 12/15/2022] Open
Abstract
ObjectiveThis study aimed to investigate the disparity of gut microbiota among elite athletes and young adults with different physical activity independent of dietary status.MethodsIn Hangzhou, China, an age and sex matching study was conducted between April and May 2021. A total of 66 Chinese young adults were recruited in this study and divided into an elite athlete group, physically active group, and physically inactive group. Fecal samples were collected to assess gut microbiota composition. Dietary status was measured using a food-frequency questionnaire. Comparisons in gut microbiota and blood biomarkers among three groups were analyzed by using the analysis of covariance.ResultsThe findings depicted a tendency to form clusters for beta diversity among three groups, while no significant difference was observed in both alpha and beta diversity. In the multiple analysis model, by adjusting dietary status, a significantly higher abundance of Clostridiaceae (p = 0.029) and Megamonas_rupellensis (p = 0.087) was observed in elite athletes compared to that in general young adults. Furthermore, inflammation-related bacteria such as Bilophila (p = 0.011) and Faecalicoccus (p = 0.050) were enriched in physically inactive young adults compared to two other groups. Pearson's correlation analysis showed a positive association between Bilophila and circulating white body cell count (r = 0.332, p = 0.006) and its subtypes including neutrophils (r = 0.273, p = 0.027), and lymphocytes (r = 0.327, p = 0.007). Megamonas_rupellensis has been shown associated positively with serum lymphocytes levels (r = 0.268, p = 0.03). Although no significant differences were observed, the elite athletes tended to have lower levels of blood biomarkers of immunity within a normal range, which may reflect a better immune function.ConclusionThis matching study indicated that physically inactive young adults are more likely to have a lower immune function and a higher abundance of pro-inflammatory gut bacteria than elite athletes and physically active young adults. Dietary status should be considered as an important factor that may affect the association of physical activity with immune function and gut microbiota.
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Affiliation(s)
- Yongjin Xu
- Department of Sports and Exercise Science, Zhejiang University, Hangzhou, China
| | - Fei Zhong
- Department of Sports and Exercise Science, Zhejiang University, Hangzhou, China
| | - Xiaoqian Zheng
- Department of Sports and Exercise Science, Zhejiang University, Hangzhou, China
| | - Hsin-Yi Lai
- Department of Neurology and Research Center of Neurology in Second Affiliated Hospital, Key Laboratory of Medical Neurobiology of Zhejiang Province, Interdisciplinary Institute of Neuroscience and Technology, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory for Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University School of Medicine, Hangzhou, China
- Department of Neurology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chunchun Wu
- Department of Sports and Exercise Science, Zhejiang University, Hangzhou, China
| | - Cong Huang
- Department of Sports and Exercise Science, Zhejiang University, Hangzhou, China
- Department of Medicine and Science in Sports and Exercise, Tohoku University Graduate School of Medicine, Sendai, Japan
- *Correspondence: Cong Huang
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Preliminary Report on Intestinal Flora Disorder, Faecal Short-Chain Fatty Acid Level Decline and Intestinal Mucosal Tissue Weakening Caused by Litchi Extract to Induce Systemic Inflammation in HFA Mice. Nutrients 2022; 14:nu14040776. [PMID: 35215426 PMCID: PMC8874556 DOI: 10.3390/nu14040776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/05/2022] [Accepted: 02/08/2022] [Indexed: 01/27/2023] Open
Abstract
Certain foods are known as “heating” foods in Chinese medicine. Over-consumption of these foods can lead to symptoms known as “heating up”. These symptoms have been shown to be symptoms of systemic low-grade inflammation. However, the mechanism by which these foods cause inflammation is not clear. In this preliminary study, we investigated dysbacteriosis of the gut microbiota as a possible cause of inflammation by litchi, a typical “heating” food. A human flora-associated (HFA) mouse model (donor: n = 1) was constructed. After gavaging the mice with litchi extract suspension at low, medium and high doses (400, 800, 1600 mg/kg·d−1, respectively) (n = 3) for 7 days, the serum levels of inflammatory cytokines, gut microbiota, the concentration of SCFAs and the integrity of the intestinal mucosal barrier were measured. The results revealed significant increases in the abundance of Prevotella and Bacteroides. A significant increase in the abundance of Bilophila and a decrease in Megasomonas was observed in the high-dose group. High-dose litchi intervention led to a decrease of most SCFA levels in the intestine. It also caused a more than two-fold increase in the serum TNF-α level and LPS level but a decrease in the IL-1β and IL-6 levels. Medium- and high-dose litchi intervention caused widening of the intestinal epithelial cell junction complex and general weakening of the intestinal mucosal barrier as well as reduced energy conversion efficiency of the gut microbiota. These data suggest that litchi, when consumed excessively, can lead to a low degree of systematic inflammation and this is linked to its ability to cause dysbacteriosis of the gut microbiota, decrease SCFAs and weaken the intestinal mucosal tissues.
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Irons EE, Cortes Gomez E, Andersen VL, Lau JTY. Bacterial colonization and TH17 immunity are shaped by intestinal sialylation in neonatal mice. Glycobiology 2022; 32:414-428. [PMID: 35157771 PMCID: PMC9022908 DOI: 10.1093/glycob/cwac005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/10/2022] [Accepted: 01/30/2022] [Indexed: 11/14/2022] Open
Abstract
Interactions between the neonate host and its gut microbiome are central to the development of a healthy immune system. However, the mechanisms by which animals alter early colonization of microbiota for their benefit remain unclear. Here, we investigated the role of early-life expression of the α2,6-sialyltransferase ST6GAL1 in microbiome phylogeny and mucosal immunity. Fecal, upper respiratory, and oral microbiomes of pups expressing or lacking St6gal1 were analyzed by 16S rRNA sequencing. At weaning, the fecal microbiome of St6gal1-KO mice had reduced Clostridiodes, Coprobacillus, and Adlercreutzia, but increased Helicobacter and Bilophila. Pooled fecal microbiomes from syngeneic donors were transferred to antibiotic-treated wild-type mice, before analysis of recipient mucosal immune responses by flow cytometry, RT-qPCR, microscopy, and ELISA. Transfer of St6gal1-KO microbiome induced a mucosal Th17 response, with expression of T-bet and IL-17, and IL-22-dependent gut lengthening. Early life intestinal sialylation was characterized by RT-qPCR, immunoblot, microscopy, and sialyltransferase enzyme assays in genetic mouse models at rest or with glucocorticoid receptor modulators. St6gal1 expression was greatest in the duodenum, where it was mediated by the P1 promoter and efficiently inhibited by dexamethasone. Our data show that the inability to produce α2,6-sialyl ligands contributes to microbiome-dependent Th17 inflammation, highlighting a pathway by which the intestinal glycosylation regulates mucosal immunity.
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Affiliation(s)
- Eric E Irons
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Eduardo Cortes Gomez
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Valerie L Andersen
- Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, United States
| | - Joseph T Y Lau
- Corresponding author: Department of Molecular and Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY 14263, USA.
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Antitumor bioactivity and gut microbiota modulation of polyhydroxybutyrate (PHB) in a rat animal model for colorectal cancer. Int J Biol Macromol 2022; 203:638-649. [PMID: 35090944 DOI: 10.1016/j.ijbiomac.2022.01.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 12/19/2022]
Abstract
Polyhydroxybutyrate (PHB) is a non-toxic polyhydroxyalkanoate polymer produced by several microorganisms, widely used as a biological substitute for plastics derived from fossil hydrocarbons. In this work, PHB polymer has been tested in an animal model for colorectal cancer. In the animal model, PHB has been able to reduce the number of polyps by 48,1%, and the tumoral extension area by 58,1%. Also, PHB induces a selective increase in beneficial gut bacterial taxons in this animal model, and a selective reduction in pro-inflammatory taxons, demonstrating its value as a nutraceutical compound. This antitumor effect is caused by gut production of 3-hydroxybutyrate and butyrate. In this animal model, 3-hydroxybutyrate is also observed in plasma and in brain tissue, after PHB consumption, making PHB supplementation interesting as a bioactive compound in other extraintestinal conditions, as 3-hydroxybutyrate has been reported to enhance brain and cognitive function, cardiac performance, appetite suppression and diabetes. Therefore, PHB could be postulated as an interesting non-polysaccharide antitumor prebiotic, paving the way towards its future use in functional foods.
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50
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Haran JP, Ward DV, Bhattarai SK, Loew E, Dutta P, Higgins A, McCormick BA, Bucci V. The high prevalence of Clostridioides difficile among nursing home elders associates with a dysbiotic microbiome. Gut Microbes 2022; 13:1-15. [PMID: 33764826 PMCID: PMC8007149 DOI: 10.1080/19490976.2021.1897209] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Clostridioides difficile disproportionally affects the elderly living in nursing homes (NHs). Our objective was to explore the prevalence of C. difficile in NH elders, over time and to determine whether the microbiome or other clinical factors are associated with C. difficile colonization.We collected serial stool samples from NH residents. C. difficile prevalence was determined by quantitative polymerase-chain reaction detection of Toxin genes tcdA and tcdB; microbiome composition was determined by shotgun metagenomic sequencing. We used mixed-effect random forest modeling machine to determine bacterial taxa whose abundance is associated with C. difficile prevalence while controlling for clinical covariates including demographics, medications, and past medical history.We enrolled 167 NH elders who contributed 506 stool samples. Of the 123 elders providing multiple samples, 30 (24.4%) elders yielded multiple samples in which C. difficile was detected and 78 (46.7%) had at least one C. difficile positive sample. Elders with C. difficile positive samples were characterized by increased abundances of pathogenic or inflammatory-associated bacterial taxa and by lower abundances of taxa with anti-inflammatory or symbiotic properties. Proton pump inhibitor (PPI) use is associated with lower prevalence of C. difficile (Odds Ratio 0.46; 95%CI, 0.22-0.99) and the abundance of bacterial species with known beneficial effects was higher in PPI users and markedly lower in elders with high C. difficile prevalence.C. difficile is prevalent among NH elders and a dysbiotic gut microbiome associates with C. difficile colonization status. Manipulating the gut microbiome may prove to be a key strategy in the reduction of C. difficile in the NH.
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Affiliation(s)
- John P. Haran
- Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, MA, USA,Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA,Program in Microbiome Dynamics, University of Massachusetts Medical School, Worcester, MA, USA,CONTACT John P. Haran Department of Emergency Medicine, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA01655
| | - Doyle V. Ward
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA,Program in Microbiome Dynamics, University of Massachusetts Medical School, Worcester, MA, USA
| | - Shakti K. Bhattarai
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA,Program in Microbiome Dynamics, University of Massachusetts Medical School, Worcester, MA, USA
| | - Ethan Loew
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA,Program in Microbiome Dynamics, University of Massachusetts Medical School, Worcester, MA, USA
| | - Protiva Dutta
- Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Amanda Higgins
- Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Beth A. McCormick
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA,Program in Microbiome Dynamics, University of Massachusetts Medical School, Worcester, MA, USA
| | - Vanni Bucci
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA,Program in Microbiome Dynamics, University of Massachusetts Medical School, Worcester, MA, USA
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