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Luo L, Zhao Y, Zhang G, Dong S, Xu Y, Shi H, Zhang M, Liu X, Wang S, Luo H, Jing W. Tauroursodeoxycholic Acid Reverses Dextran Sulfate Sodium-Induced Colitis in Mice via Modulation of Intestinal Barrier Dysfunction and Microbiome Dysregulation. J Pharmacol Exp Ther 2024; 390:116-124. [PMID: 38816229 DOI: 10.1124/jpet.123.002020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 06/01/2024] Open
Abstract
Ulcerative colitis (UC) is an immune-mediated inflammatory disease that can lead to persistent damage and even cancer without any intervention. Conventional treatments can alleviate UC symptoms but are costly and cause various side effects. Tauroursodeoxycholic acid (TUDCA), a secondary bile acid derivative, possesses anti-inflammatory and cytoprotective properties for various diseases, but its potential therapeutic benefits in UC have not been fully explored. Mice were subjected to colitis induction using 3% dextran sulfate sodium (DSS). The therapeutic effect of TUDCA was evaluated by body weight loss, disease activity index (DAI), colon length, and spleen weight ratio. Tissue pathology was assessed using H&E staining, while the levels of pro-inflammatory and anti-inflammatory cytokines in colonic tissue were quantified via ELISA. Tight junction proteins were detected by immunoblotting and intestinal permeability was assessed using fluorescein isothiocyanate (FITC)-dextran. Moreover, the gut microbiota was profiled using high-throughput sequencing of the 16S rDNA gene. TUDCA alleviated the colitis in mice, involving reduced DAI, attenuated colon and spleen enlargement, ameliorated histopathological lesions, and normalized levels of pro-inflammatory and anti-inflammatory cytokines. Furthermore, TUDCA treatment inhibited the downregulation of intestinal barrier proteins, including zonula occludens-1 and occludin, thus reducing intestinal permeability. The analysis of gut microbiota suggested that TUDCA modulated the dysbiosis in mice with colitis, especially for the remarkable rise in Akkermansia TUDCA exerted a therapeutic efficacy in DSS-induced colitis by reducing intestinal inflammation, protecting intestinal barrier integrity, and restoring gut microbiota balance. SIGNIFICANCE STATEMENT: This study demonstrates the potential therapeutic benefits of Tauroursodeoxycholic acid (TUDCA) in ulcerative colitis. TUDCA effectively alleviated colitis symptoms in mice, including reducing inflammation, restoring intestinal barrier integrity and the dysbiosis of gut microbiota. This work highlights the promising role of TUDCA as a potentially alternative treatment, offering new insights into managing this debilitating condition.
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Affiliation(s)
- Longbiao Luo
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Yi Zhao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Guangji Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Sijing Dong
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - YinYue Xu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Hehe Shi
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Menggai Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Xue Liu
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Sicen Wang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Hua Luo
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
| | - Wanghui Jing
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, China (L.L., S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.); Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China (L.L., H.L.); Department of Pharmacy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China (Y.Z.); School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China (G.Z.); and Shaanxi Engineering Research Center of Cardiovascular Drugs Screening and Analysis, Xi'an, China (S.D., Y.X., H.S., M.Z., X.L., S.W., W.J.)
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Chen L, Zhao L, Zhang G, Li Z, Qu L, Luo L. Long-term administration of royal jelly regulates age-related disorders and improves gut function in naturally aging mice. Food Funct 2024; 15:5272-5286. [PMID: 38629388 DOI: 10.1039/d4fo00781f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
A natural aging mouse model can exhibit physiological characteristics that closely resemble those of human aging. Through long-term observation, it reflects the occurrence and development of the aging process more accurately. Although numerous beneficial effects of royal jelly (RJ) have been extensively demonstrated in multiple experimental models, the effects of RJ on naturally aging mice have not yet been investigated. In this study, middle-aged male C57BL/6J mice were given RJ for 9 consecutive months to investigate its impact on the intestinal barrier function, gut microbiota, short-chain fatty acids (SCFAs) content and possible mechanisms. The results confirmed that RJ modulated serum lipids by reducing the levels of total cholesterol (TC), triglycerides (TG), and low-density lipoprotein cholesterol (LDL-C). Additionally, it protected the liver by increasing antioxidant enzyme levels while decreasing inflammatory cytokines TNF-α (by 51.97%), IL-6 (by 29.73%), and IL-1β (by 43.89%). Furthermore, RJ inhibited the expression of cell cycle-dependent kinase inhibitors including p16, p21, and p53. Importantly, RJ ameliorated gut dysfunctions by inhibiting reduction of tight junction proteins and reducing inflammatory cytokines content in the colon. We also observed an alteration in gut microbiota characterized by an elevated ratio of Firmicutes to Bacteroides (F/B) along with increased abundance of beneficial bacteria, i.e., Lachnospiraceae NK4A136 and Akkermansia. Correlation analysis revealed positive associations between most bacterial genera and SCFAs production. Functional profiling of gut microbiota composition indicated that RJ intervention regulated amino acid metabolism, glycan biosynthesis, and cofactor/vitamin metabolism. Overall, our findings provide an effective dietary intervention strategy for modulating age-associated frailty through the modulation of the gut microbiota.
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Affiliation(s)
- Lili Chen
- Key Laboratory of Geriatric Nutrition and Health Ministry of Education, College of Food and Health, Beijing Technology and Business University, Beijing, 100048, China.
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, 330013, China.
| | - Li Zhao
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang, 330013, China.
| | - Gaowei Zhang
- Key Laboratory of Geriatric Nutrition and Health Ministry of Education, College of Food and Health, Beijing Technology and Business University, Beijing, 100048, China.
| | - Zhuozhen Li
- Key Laboratory of Geriatric Nutrition and Health Ministry of Education, College of Food and Health, Beijing Technology and Business University, Beijing, 100048, China.
| | - Liangliang Qu
- Key Laboratory of Geriatric Nutrition and Health Ministry of Education, College of Food and Health, Beijing Technology and Business University, Beijing, 100048, China.
| | - Liping Luo
- Key Laboratory of Geriatric Nutrition and Health Ministry of Education, College of Food and Health, Beijing Technology and Business University, Beijing, 100048, China.
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Yo S, Matsumoto H, Gu T, Sasahira M, Oosawa M, Handa O, Umegaki E, Shiotani A. Exercise Affects Mucosa-Associated Microbiota and Colonic Tumor Formation Induced by Azoxymethane in High-Fat-Diet-Induced Obese Mice. Microorganisms 2024; 12:957. [PMID: 38792787 PMCID: PMC11124473 DOI: 10.3390/microorganisms12050957] [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: 04/03/2024] [Revised: 05/05/2024] [Accepted: 05/05/2024] [Indexed: 05/26/2024] Open
Abstract
The only reliable factor that reduces the risk of colorectal carcinogenesis is physical activity. However, the underlying mechanisms remain unclear. In this study, we examined the effects of physical activity against gut microbiota, including mucosa-associated microbiota (MAM) on azoxymethane-induced colorectal tumors in obese mice. We divided the subjects into four groups: normal diet (ND), high-fat diet (HFD), ND + exercise (Ex), and HFD + Ex groups. The Ex group performed treadmill exercise for 20 weeks. Thereafter, fecal and colonic mucus samples were extracted for microbiota analysis. DNA was collected from feces and colonic mucosa, and V3-V4 amplicon sequencing analysis of the 16SrRNA gene was performed using MiSeq. The HFD group had significantly more colonic polyps than the ND group (ND 6.5 ± 1.3, HFD 11.4 ± 1.5, p < 0.001), and the addition of Ex suppressed the number of colonic polyps in ND and HFD groups (ND 6.5 ± 1.3, ND + Ex 2.8 ± 2.5, p < 0.05). The HFD group showed significantly lower concentrations of succinic, acetic, butyric, and propionic acids (mg/g) in feces, compared with the ND group (succinic acid HFD 0.59, ND 0.17; acetic acid HFD 0.63, ND 2.41; propionic acid HFD 0.10, ND 0.47; and N-butyric acid HFD 0.31, ND 0.93). In the case of ND, succinic acid and butyric acid tended to decrease with Ex (succinic acid ND 0.17, ND + Ex 0.12; N-butyric acid ND 0.93, ND + Ex 0.74 0.74). Succinic acid, acetic acid, butyric acid, and propionic acid levels in feces were significantly lower in the HFD group than in the ND group; in both feces and mucus samples, Butyricicoccus and Lactobacillus levels were significantly lower in the HFD group. Akkermansia was significantly increased in ND + Ex and HFD + Ex groups. Diet and exercise affected the number of colorectal tumors. Furthermore, diet and exercise alter intestinal MAM, which may be involved in colorectal tumor development.
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Affiliation(s)
| | - Hiroshi Matsumoto
- Department of Gastroenterology, Kawasaki Medical School, Okayama 701-0192, Japan; (S.Y.); (T.G.); (M.S.); (M.O.); (O.H.); (E.U.); (A.S.)
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4
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Mantri A, Köhlmoos A, Schelski DS, Seel W, Stoffel-Wagner B, Krawitz P, Stehle P, Holst JJ, Weber B, Koban L, Plassmann H, Simon MC. Impact of Synbiotic Intake on Liver Metabolism in Metabolically Healthy Participants and Its Potential Preventive Effect on Metabolic-Dysfunction-Associated Fatty Liver Disease (MAFLD): A Randomized, Placebo-Controlled, Double-Blinded Clinical Trial. Nutrients 2024; 16:1300. [PMID: 38732547 PMCID: PMC11085762 DOI: 10.3390/nu16091300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Synbiotics modulate the gut microbiome and contribute to the prevention of liver diseases such as metabolic-dysfunction-associated fatty liver disease (MAFLD). This study aimed to evaluate the effect of a randomized, placebo-controlled, double-blinded seven-week intervention trial on the liver metabolism in 117 metabolically healthy male participants. Anthropometric data, blood parameters, and stool samples were analyzed using linear mixed models. After seven weeks of intervention, there was a significant reduction in alanine aminotransferase (ALT) in the synbiotic group compared to the placebo group (-14.92%, CI: -26.60--3.23%, p = 0.013). A stratified analysis according to body fat percentage revealed a significant decrease in ALT (-20.70%, CI: -40.88--0.53%, p = 0.045) in participants with an elevated body fat percentage. Further, a significant change in microbiome composition (1.16, CI: 0.06-2.25, p = 0.039) in this group was found, while the microbial composition remained stable upon intervention in the group with physiological body fat. The 7-week synbiotic intervention reduced ALT levels, especially in participants with an elevated body fat percentage, possibly due to modulation of the gut microbiome. Synbiotic intake may be helpful in delaying the progression of MAFLD and could be used in addition to the recommended lifestyle modification therapy.
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Affiliation(s)
- Aakash Mantri
- Institute of Nutrition and Food Science, Nutrition and Microbiota, University of Bonn, 53115 Bonn, Germany; (A.M.); (A.K.); (W.S.)
- Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn, 53127 Bonn, Germany;
| | - Anika Köhlmoos
- Institute of Nutrition and Food Science, Nutrition and Microbiota, University of Bonn, 53115 Bonn, Germany; (A.M.); (A.K.); (W.S.)
| | - Daniela Stephanie Schelski
- Center for Economics and Neuroscience, University of Bonn, 53113 Bonn, Germany; (D.S.S.); (B.W.)
- Institute of Experimental Epileptology and Cognition Research, University of Bonn, 53113 Bonn, Germany
| | - Waldemar Seel
- Institute of Nutrition and Food Science, Nutrition and Microbiota, University of Bonn, 53115 Bonn, Germany; (A.M.); (A.K.); (W.S.)
| | - Birgit Stoffel-Wagner
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, 53127 Bonn, Germany;
| | - Peter Krawitz
- Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn, 53127 Bonn, Germany;
| | - Peter Stehle
- Institute of Nutrition and Food Science, Nutritional Physiology, University of Bonn, 53115 Bonn, Germany;
| | - Jens Juul Holst
- Novo Nordisk Foundation Center for Basic Metabolic Research, Department for Biomedical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark;
| | - Bernd Weber
- Center for Economics and Neuroscience, University of Bonn, 53113 Bonn, Germany; (D.S.S.); (B.W.)
- Institute of Experimental Epileptology and Cognition Research, University of Bonn, 53113 Bonn, Germany
| | - Leonie Koban
- Institut Européen d’Administration des Affaires (INSEAD), 77300 Fontainebleau, France; (L.K.); (H.P.)
- Control-Interoception-Attention Team, Paris Brain Institute (ICM), 75013 Paris, France
- Lyon Neuroscience Research Center (CRNL), Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Université Claude Bernard Lyon 1, 69500 Bron, France
| | - Hilke Plassmann
- Institut Européen d’Administration des Affaires (INSEAD), 77300 Fontainebleau, France; (L.K.); (H.P.)
- Control-Interoception-Attention Team, Paris Brain Institute (ICM), 75013 Paris, France
| | - Marie-Christine Simon
- Institute of Nutrition and Food Science, Nutrition and Microbiota, University of Bonn, 53115 Bonn, Germany; (A.M.); (A.K.); (W.S.)
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Awazawa M, Matsushita M, Nomura I, Kobayashi N, Tamura-Nakano M, Sorimachi Y, Takubo K, Ueki K. Imeglimin improves systemic metabolism by targeting brown adipose tissue and gut microbiota in obese model mice. Metabolism 2024; 153:155796. [PMID: 38262576 DOI: 10.1016/j.metabol.2024.155796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/30/2023] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Imeglimin is a recently developed anti-diabetic drug that could concurrently promote insulin secretion and insulin sensitivity, while its mechanisms of action are not fully understood. Here we show that imeglimin administration could protect mice from high fat diet-induced weight gain with enhanced energy expenditure and attenuated whitening of brown adipose tissue. Imeglimin administration led to significant alteration of gut microbiota, which included an increase of Akkermansia genus, with attenuation of obesity-associated gut pathologies. Ablation of microbiota by antibiotic treatment partially abrogated the insulin sensitizing effects of imeglimin, while not affecting its actions on body weight gain or brown adipose tissue. Collectively, our results characterize imeglimin as a potential agent promoting energy expenditure and gut integrity, providing new insights into its mechanisms of action.
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Affiliation(s)
- Motoharu Awazawa
- Department of Molecular Diabetic Medicine, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan.
| | - Maya Matsushita
- Department of Molecular Diabetic Medicine, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan
| | - Ikumi Nomura
- Department of Molecular Diabetic Medicine, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan
| | - Naoki Kobayashi
- Department of Molecular Diabetic Medicine, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan
| | - Miwa Tamura-Nakano
- Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan
| | - Yuriko Sorimachi
- Department of Stem Cell Biology, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan
| | - Keiyo Takubo
- Department of Stem Cell Biology, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan
| | - Kohjiro Ueki
- Department of Molecular Diabetic Medicine, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo, 162-8655, Japan; Department of Molecular Diabetology, Graduate School of Medicine, The University of Tokyo, 3-7-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
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Peña-Cearra A, Palacios A, Pellon A, Castelo J, Pasco ST, Seoane I, Barriales D, Martin JE, Pascual-Itoiz MÁ, Gonzalez-Lopez M, Martín-Ruiz I, Macías-Cámara N, Gutiez N, Araujo-Aris S, Aransay AM, Rodríguez H, Anguita J, Abecia L. Akkermansia muciniphila-induced trained immune phenotype increases bacterial intracellular survival and attenuates inflammation. Commun Biol 2024; 7:192. [PMID: 38365881 PMCID: PMC10873422 DOI: 10.1038/s42003-024-05867-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/26/2024] [Indexed: 02/18/2024] Open
Abstract
The initial exposure to pathogens and commensals confers innate immune cells the capacity to respond distinctively upon a second stimulus. This training capacity might play key functions in developing an adequate innate immune response to the continuous exposure to bacteria. However, the mechanisms involved in induction of trained immunity by commensals remain mostly unexplored. A. muciniphila represents an attractive candidate to study the promotion of these long-term responses. Here, we show that priming of macrophages with live A. muciniphila enhances bacterial intracellular survival and decreases the release of pro- and anti-inflammatory signals, lowering the production of TNF and IL-10. Global transcriptional analysis of macrophages after a secondary exposure to the bacteria showed the transcriptional rearrangement underpinning the phenotype observed compared to acutely exposed cells, with the increased expression of genes related to phagocytic capacity and those involved in the metabolic adjustment conducing to innate immune training. Accordingly, key genes related to bacterial killing and pro-inflammatory pathways were downregulated. These data demonstrate the importance of specific bacterial members in the modulation of local long-term innate immune responses, broadening our knowledge of the association between gut microbiome commensals and trained immunity as well as the anti-inflammatory probiotic potential of A. muciniphila.
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Affiliation(s)
- Ainize Peña-Cearra
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
- Department of Immunology, Microbiology and Parasitology, Faculty of Medicine and Nursery, University of the Basque Country, Bilbao, Spain
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, United Kingdom
| | - Ainhoa Palacios
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Aize Pellon
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, United Kingdom
| | - Janire Castelo
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Samuel Tanner Pasco
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Iratxe Seoane
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
- Department of Immunology, Microbiology and Parasitology, Faculty of Medicine and Nursery, University of the Basque Country, Bilbao, Spain
| | - Diego Barriales
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
- Cell Therapy, Stem Cells and Tissues Group, CVTTH/Biobizkaia Health Research Institute, Galdakao, Spain
| | - Jose Ezequiel Martin
- Genome Analysis Platform, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Miguel Ángel Pascual-Itoiz
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Monika Gonzalez-Lopez
- Genome Analysis Platform, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Itziar Martín-Ruiz
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Nuria Macías-Cámara
- Genome Analysis Platform, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Naiara Gutiez
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Sarai Araujo-Aris
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Ana Mª Aransay
- Genome Analysis Platform, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
- CIBERehd, Instituto de Salud Carlos III, Madrid, Spain
| | - Héctor Rodríguez
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
| | - Juan Anguita
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain.
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain.
| | - Leticia Abecia
- Inflammation and Macrophage Plasticity Laboratory, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain.
- Department of Immunology, Microbiology and Parasitology, Faculty of Medicine and Nursery, University of the Basque Country, Bilbao, Spain.
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7
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Liang C, Niu HY, Lyu LZ, Wu YF, Zhang LW. Profiles of Intestinal Flora in Breastfed Obese Children and Selecting Functional Strains Against Obesity. Mol Nutr Food Res 2024; 68:e2300735. [PMID: 38227364 DOI: 10.1002/mnfr.202300735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/22/2023] [Indexed: 01/17/2024]
Abstract
SCOPE Breast milk has the potential to prevent childhood obesity by providing probiotics, but there are still instances of obesity in breastfed children. METHODS AND RESULTS This study investigates the difference in intestinal flora structure between breastfed children with obesity (OB-BF) and normal-weight breastfed children (N-BF). Building upon this foundation, it employs both cell and mouse models to identify an antiobesity strain within the fecal matter of N-BF children and explore its underlying mechanisms. The results reveal a reduction in lactobacillus levels within the intestinal flora of OB-BF children compared to N-BF children. Consequently, Lactobacillus plantarum H-72 (H-72) is identified as a promising candidate due to its capacity to stimulate glucagon-like peptide-1 (GLP-1) secretion in enteroendocrine cells (ECCs). In vivo, H-72 effectively increases serum GLP-1 concentration, reduces food intake, regulates the expression of genes related to energy metabolism (SCD-1, FAS, UCP-1, and UCP-3), and regulates gut microbiota structure in mice. Moreover, the lipoteichoic acid of H-72 activates toll-like receptor 4 to enhanced GLP-1 secretion in STC-1 cells. CONCLUSIONS L. plantarum H-72 is screened out for its potential antiobesity effect, which presents a potential and promising avenue for future interventions aimed at preventing pediatric obesity in breastfed children.
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Affiliation(s)
- Cong Liang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266510, China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150010, China
| | - Hai-Yue Niu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150010, China
| | - Lin-Zheng Lyu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150010, China
| | - Yi-Fan Wu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150010, China
| | - Lan-Wei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
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8
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Souza RO, Miranda VC, Quintanilha MF, Gallotti B, Oliveira SRM, Silva JL, Alvarez-Leite JI, Jesus LCL, Azevedo V, Vital KD, Fernandes SOA, Cardoso VN, Ferreira E, Nicoli JR, Martins FS. Evaluation of the Treatment with Akkermansia muciniphila BAA-835 of Chemotherapy-induced Mucositis in Mice. Probiotics Antimicrob Proteins 2024; 16:275-292. [PMID: 36652108 DOI: 10.1007/s12602-023-10040-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2023] [Indexed: 01/19/2023]
Abstract
Mucositis is a high-incidence side effect in cancer patients undergoing chemotherapy. Next-generation probiotics are emerging as new therapeutic tools for managing various disorders. Studies have demonstrated the potential of Akkermansia muciniphila to increase the efficiency of anticancer treatment and to mitigate mucositis. Due to the beneficial effect of A. muciniphila on the host, we evaluated the dose-response, the microorganism viability, and the treatment protocol of A. muciniphila BAA-835 in a murine model of chemotherapy-induced mucositis. Female Balb/c mice were divided into groups that received either sterile 0.9% saline or A. muciniphila by gavage. Mucositis was induced using a single intraperitoneal injection of 5-fluorouracil. The animals were euthanized three days after the induction of mucositis, and tissue and blood were collected for analysis. Prevention of weight loss and small intestine shortening and reduction of neutrophil and eosinophil influx were observed when animals were pretreated with viable A. muciniphila at 1010 colony-forming units per mL (CFU/mL). The A. muciniphila improved mucosal damage by preserving tissue architecture and increasing villus height and goblet cell number. It also improved the integrity of the epithelial barrier, decreasing intestinal permeability and bacterial translocation. In addition, the treatment prevented the expansion of Enterobacteriaceae. The immunological parameters were also improved by decreasing the expression of pro-inflammatory cytokines (IL6, IL1β, and TNF) and increasing IL10. In conclusion, pretreatment with 1010 CFU/mL of viable A. muciniphila effectively controlled inflammation, protected the intestinal mucosa and the epithelial barrier, and prevented Enterobacteriaceae expansion in treated mice.
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Affiliation(s)
- Ramon O Souza
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vivian C Miranda
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mônica F Quintanilha
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Bruno Gallotti
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Samantha R M Oliveira
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Janayne L Silva
- Departamento de Bioquímica E Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jacqueline I Alvarez-Leite
- Departamento de Bioquímica E Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luís C L Jesus
- Departamento de Genética, Ecologia E Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vasco Azevedo
- Departamento de Genética, Ecologia E Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Kátia D Vital
- Departamento de Análises Clínicas E Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Simone O A Fernandes
- Departamento de Análises Clínicas E Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Valbert N Cardoso
- Departamento de Análises Clínicas E Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Enio Ferreira
- Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jacques R Nicoli
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Flaviano S Martins
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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9
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Sparfel L, Ratodiarivony S, Boutet-Robinet E, Ellero-Simatos S, Jolivet-Gougeon A. Akkermansia muciniphila and Alcohol-Related Liver Diseases. A Systematic Review. Mol Nutr Food Res 2024; 68:e2300510. [PMID: 38059838 DOI: 10.1002/mnfr.202300510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/03/2023] [Indexed: 12/08/2023]
Abstract
SCOPE Akkermansia muciniphila (A. muciniphila) are Gram negative commensal bacteria, degrading mucin in the intestinal mucosa, modulating intestinal permeability and inflammation in the digestive tract, liver, and blood. Some components can promote the relative abundance of A. muciniphila in the gut microbiota, but lower levels of A. muciniphila are more commonly found in people with obesity, diabetes, metabolic syndromes, or inflammatory digestive diseases. Over-intake of ethanol can also induce a decrease of A. muciniphila, associated with dysregulation of microbial metabolite production, impaired intestinal permeability, induction of chronic inflammation, and production of cytokines. METHODS AND RESULTS Using a PRISMA search strategy, a review is performed on the bacteriological characteristics of A. muciniphila, the factors capable of modulating its relative abundance in the digestive tract and its probiotic use in alcohol-related liver diseases (alcoholic hepatitis, cirrhosis, hepatocellular carcinoma, hepatic transplantation, partial hepatectomy). CONCLUSION Several studies have shown that supplementation with A. muciniphila can improve ethanol-related hepatic pathologies, and highlight the interest in using this bacterial species as a probiotic.
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Affiliation(s)
- Lydie Sparfel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, F-35000, France
| | - Sandy Ratodiarivony
- Univ Rennes, Bacterial Regulatory RNAs and Medicine (BRM), UMR_S 1230, Rennes, F-35000, France
| | - Elisa Boutet-Robinet
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31300, Toulouse, France
| | - Sandrine Ellero-Simatos
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31300, Toulouse, France
| | - Anne Jolivet-Gougeon
- Univ Rennes, Bacterial Regulatory RNAs and Medicine (BRM), UMR_S 1230, Rennes, F-35000, France
- Teaching Hospital, CHU Rennes, 2 rue Henri Le Guilloux 35033, Rennes, F-35000, France
- INSERM, INRAE, Institut NUMECAN (Nutrition Metabolisms and Cancer), U1241, INSERM 1241, Rennes, F-35000, France
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10
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Xiang Y, Wang S, Huang H, Li X, Li H, Tu Y, Wei Y, Song F, Ji X. A novel holin from an Enterococcus faecalis phage and application in vitro and in vivo. Microb Pathog 2024; 186:106471. [PMID: 38048838 DOI: 10.1016/j.micpath.2023.106471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 12/06/2023]
Abstract
Enterococcus faecalis, a conditional pathogenic bacterium, is prevalent in the intestinal, oral, and reproductive tracts of humans and animals, causing a variety of infectious diseases. E. faecalis is the main species detected in secondary persistent infection from root canal therapy failure. Due to the abuse of antibacterial agents, E. faecalis has evolved its resistant ability. Therefore, it is difficult to treat clinical diseases infected by E. faecalis. Exploring new alternative drugs for treating E. faecalis infection is urgent. We cloned and expressed the gene of phage holin, purified the recombinant protein, and analyzed the antibacterial activity, lysis profile, and ability to remove bacterial biofilm. It showed that the crude enzyme of phage holin pEF191 exhibited superior bacterial inhibiting activity and a broader lysis host range compared to the parent phage PEf771. In addition, pEF191 demonstrated high efficacy in eliminating E. faecalis biofilm. The therapeutic results of the Sprague-Dawley (SD) rats model infected showed that pEf191 did not affect SD rats, indicating that pEF191 provided greater protection against E. faecalis infection in SD rats. Based on the 16 S rDNA data of SD rats intestinal microorganism population, holin pEF191 exhibited no impact on the diversity of intestinal microorganisms at the phylum and genus levels and improved the relative abundance of favorable bacteria. Thus, pEF191 may serve as a promising alternative to antibiotics in the management of E. faecalis infection.
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Affiliation(s)
- Yingying Xiang
- Department of Stomatology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, 650031, China
| | - Suping Wang
- Facculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Hao Huang
- Department of Stomatology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, 650031, China
| | - Xuelin Li
- Department of Stomatology, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, 650031, China
| | - Haiyan Li
- Medical School, Kunming University of Science and Technology, 650500, Kunming, China
| | - Yungui Tu
- Anning First People's Hospital Affiliated to Kunming University of Science and Technology, China
| | - Yunlin Wei
- Facculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Fei Song
- Department of Minimally invasive intervention, the Third Affiliated Hospital of Kunming Medical University, Kunming, 650118, China.
| | - Xiuling Ji
- Medical School, Kunming University of Science and Technology, 650500, Kunming, China.
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11
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Li M, Weigmann B. Effect of a Flavonoid Combination of Apigenin and Epigallocatechin-3-Gallate on Alleviating Intestinal Inflammation in Experimental Colitis Models. Int J Mol Sci 2023; 24:16031. [PMID: 38003220 PMCID: PMC10671077 DOI: 10.3390/ijms242216031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/03/2023] [Accepted: 11/05/2023] [Indexed: 11/26/2023] Open
Abstract
Inflammatory bowel disease (IBD) is an autoimmune disease that leads to severe bowel symptoms and complications. Currently, there is no effective treatment, and the exact cause of IBD remains unclear. In the last decades, numerous studies have confirmed that flavonoids can have a positive impact on the treatment of IBD. Therefore, this study investigated the protective effect of a flavonoid combination of apigenin and epigallocatechin-3-gallate (EGCG) on IBD. In vitro studies in which Caco-2 cell monolayers were incubated with different concentrations of flavonoids found that the flavonoid-treated group exhibited increased transepithelial electrical resistance (TEER) at high concentrations, indicating a protective effect on the barrier function of the intestinal epithelium. In vivo studies showed that flavonoids significantly attenuated inflammatory levels in both chronic and acute hapten-mediated experimental colitis models in a time- and dose-dependent manner. In addition, the activity of myeloperoxidase (MPO) and the level of proinflammatory cytokines in the colon tissue were significantly reduced. Interestingly, the levels of anti-inflammatory cytokines were also dramatically increased. Finally, flavonoids were found to positively modulate the composition of the gut microbiota in the colon. Therefore, a combination of flavonoids could be a promising therapeutic agent for the future adjunctive treatment of IBD.
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Affiliation(s)
- Mingrui Li
- Department of Medicine 1, Kussmaul Campus for Medical Research, University of Erlangen-Nürnberg, 91052 Erlangen, Germany;
| | - Benno Weigmann
- Department of Medicine 1, Kussmaul Campus for Medical Research, University of Erlangen-Nürnberg, 91052 Erlangen, Germany;
- Medical Immunology Campus Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91052 Erlangen, Germany
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12
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Kiely LJ, Busca K, Lane JA, van Sinderen D, Hickey RM. Molecular strategies for the utilisation of human milk oligosaccharides by infant gut-associated bacteria. FEMS Microbiol Rev 2023; 47:fuad056. [PMID: 37793834 PMCID: PMC10629584 DOI: 10.1093/femsre/fuad056] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/14/2023] [Accepted: 10/03/2023] [Indexed: 10/06/2023] Open
Abstract
A number of bacterial species are found in high abundance in the faeces of healthy breast-fed infants, an occurrence that is understood to be, at least in part, due to the ability of these bacteria to metabolize human milk oligosaccharides (HMOs). HMOs are the third most abundant component of human milk after lactose and lipids, and represent complex sugars which possess unique structural diversity and are resistant to infant gastrointestinal digestion. Thus, these sugars reach the infant distal intestine intact, thereby serving as a fermentable substrate for specific intestinal microbes, including Firmicutes, Proteobacteria, and especially infant-associated Bifidobacterium spp. which help to shape the infant gut microbiome. Bacteria utilising HMOs are equipped with genes associated with their degradation and a number of carbohydrate-active enzymes known as glycoside hydrolase enzymes have been identified in the infant gut, which supports this hypothesis. The resulting degraded HMOs can also be used as growth substrates for other infant gut bacteria present in a microbe-microbe interaction known as 'cross-feeding'. This review describes the current knowledge on HMO metabolism by particular infant gut-associated bacteria, many of which are currently used as commercial probiotics, including the distinct strategies employed by individual species for HMO utilisation.
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Affiliation(s)
- Leonie Jane Kiely
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork P61C996, Ireland
- Health and Happiness Group, H&H Research, National Food Innovation Hub, Teagasc Moorepark, Fermoy, Co. Cork P61K202, Ireland
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland
- School of Microbiology, University College Cork, Cork T12 YN60, Ireland
| | - Kizkitza Busca
- Health and Happiness Group, H&H Research, National Food Innovation Hub, Teagasc Moorepark, Fermoy, Co. Cork P61K202, Ireland
| | - Jonathan A Lane
- Health and Happiness Group, H&H Research, National Food Innovation Hub, Teagasc Moorepark, Fermoy, Co. Cork P61K202, Ireland
| | - Douwe van Sinderen
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland
- School of Microbiology, University College Cork, Cork T12 YN60, Ireland
| | - Rita M Hickey
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork P61C996, Ireland
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland
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13
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Wang Y, Li T, Yang C, Wu Y, Liu Y, Yang X. Eurotium cristatum from Fu Brick Tea Promotes Adipose Thermogenesis by Boosting Colonic Akkermansia muciniphila in High-Fat-Fed Obese Mice. Foods 2023; 12:3716. [PMID: 37893609 PMCID: PMC10606327 DOI: 10.3390/foods12203716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/23/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
This study investigated the potential fat-thermogenic effects of Eurotium cristatum, and elucidated the underlying mechanisms. The 12-week administration of E. cristatum in HFD-fed obese mice reduced body weight and improved glucolipid metabolism disorders. The administration of E. cristatum also efficiently promoted thermogenesis by increasing the expression of UCP1 and PRDM16 in both interscapular brown adipose tissue (iBAT) and inguinal white adipose tissue (iWAT) of HFD-fed mice. Furthermore, E. cristatum shaped the gut microbiome by increasing the abundance of Parabacteroides and Akkermansia muciniphila, and also elevated the levels of cecal short-chain fatty acids, particularly propionate and acetate. Of note, A. muciniphila was highly negatively correlated with body weight gain (r = -0.801, p < 0.05) and the iWAT index (r = -0.977, p < 0.01), suggesting that A. muciniphila may play an important role in the thermogenic mobilization induced by E. cristatum. Continuous supplementation with A. muciniphila suppressed adipose accumulation, improved glucolipid metabolism, and enhanced the thermogenic activity of iWAT and iBAT. Collectively, our results propose that boosted A. muciniphila acts as a key microbe in tea-derived probiotic E. cristatum-mediated fat-thermogenic and anti-obesity effects.
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Affiliation(s)
| | | | | | | | | | - Xingbin Yang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710119, China (T.L.)
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14
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Hao L, Zhong W, Woo J, Wei X, Ma H, Dong H, Guo W, Sun X, Yue R, Zhao J, Zhang Q, Zhou Z. Conventional type 1 dendritic cells protect against gut barrier disruption via maintaining Akkermansia muciniphila in alcoholic steatohepatitis. Hepatology 2023; 78:896-910. [PMID: 36626632 PMCID: PMC11140646 DOI: 10.1097/hep.0000000000000019] [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: 06/01/2022] [Accepted: 10/07/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND AIMS Alcohol-perturbed gut immune homeostasis is associated with the development of alcoholic liver disease (ALD). However, the role of intestinal dendritic cells (DCs) in ALD progression is still unknown. This study aimed to investigate the cellular and molecular mechanisms through which intestinal DCs respond to alcohol exposure and contribute to the pathogenesis of ALD. APPROACH AND RESULTS After 8 weeks of alcohol consumption, the number of basic leucine zipper transcription factor ATF-like 3 ( Batf3 )-dependent conventional type 1 DCs (cDC1s) was dramatically decreased in the intestine but not the liver. cDC1 deficient Batf3 knockout mice along with wild-type mice were subjected to chronic-binge ethanol feeding to determine the role of intestinal cDC1s reduction in ALD. cDC1s deficiency exacerbated alcohol-induced gut barrier disruption, bacterial endotoxin translocation into the circulation, and liver injury. Adoptive transfer of cDC1s to alcohol-fed mice ameliorated alcohol-mediated gut barrier dysfunction and liver injury. Further studies revealed that intestinal cDC1s serve as a positive regulator of Akkermansia muciniphila ( A. muciniphila ). Oral administration of A. muciniphila markedly reversed alcoholic steatohepatitis in mice. Mechanistic studies revealed that cDC1s depletion exacerbated alcohol-downregulated intestinal antimicrobial peptides which play a crucial role in maintaining A. muciniphila abundance, by disrupting the IL-12-interferon gamma signaling pathway. Lastly, we identified that intestinal cDC1s were required for the protective role of Lactobacillus reuteri in alcoholic steatohepatitis. CONCLUSIONS This study demonstrated that cDC1s protect alcohol-induced liver injury by maintaining A. muciniphila abundance in mice. Targeting cDC1s may serve as a promising therapeutic approach for treating ALD.
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Affiliation(s)
- Liuyi Hao
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
| | - Wei Zhong
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
- Department of Nutrition, Kannapolis, North Carolina, USA
| | - Jongmin Woo
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
| | - Xiaoyuan Wei
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, Arkansas, USA
| | - Hao Ma
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, USA
| | - Haibo Dong
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
| | - Wei Guo
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
| | - Xinguo Sun
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
| | - Ruichao Yue
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, Arkansas, USA
| | - Qibin Zhang
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, USA
| | - Zhanxiang Zhou
- Center for Translational Biomedical Research, Kannapolis, North Carolina, USA
- Department of Nutrition, Kannapolis, North Carolina, USA
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15
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Xu Y, Jia X, Zhang W, Xie Q, Zhu M, Zhao Z, Hao J, Li H, Du J, Liu Y, Feng H, He J, Li H. The effects of Ascophyllum nodosum, Camellia sinensis-leaf extract, and their joint interventions on glycolipid and energy metabolism in obese mice. Front Nutr 2023; 10:1242157. [PMID: 37693249 PMCID: PMC10483828 DOI: 10.3389/fnut.2023.1242157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 07/31/2023] [Indexed: 09/12/2023] Open
Abstract
Objectives Obesity is often associated with glucolipid and/or energy metabolism disorders. Ascophyllum nodosum extract (seaweed extract, SE) and Camellia sinensis-leaf extract (tea extract, TE) have been reported to promote positive metabolic effects through different mechanisms. We investigated the effects of SE and TE on metabolic homeostasis in diet-induced obese mice and discussed their functional characteristics. Methods Male C57BL/6J mice fed with high-fat diets for 8 weeks were established as obese models and subsequently divided into different intervention groups, followed by SE, TE, and their joint interventions for 10 weeks. Body weight and food intake were monitored. Fasting glucose and oral glucose tolerance tests were interspersed during the experiment. After the intervention, the effects on obesity control were assessed based on body composition, liver pathology section, blood lipids and glucose, respiratory exchange ratio (RER), energy expenditure (EE1, EE2, and EE3), inflammatory factors, lipid anabolism enzymes, and gut flora of the obese mice. Results After continuous gavage intervention, the mice in the intervention groups exhibited lower body weight (lower ~4.93 g, vs. HFD 38.02 g), peri-testicular fat masses (lower ~0.61 g, vs. HFD 1.92 g), and perirenal fat masses (lower ~0.21 g, vs. HFD mice 0.70 g). All interventions prevented diet-induced increases in plasma levels of glucose, adiponectin, leptin, and the inflammatory factors IL-1β and TNF-α. The RER was modified by the interventions, while the rhythm of the RER was not. Blood lipids (total cholesterol, triglycerides, and LDL) decreased and were associated with lower lipid anabolism enzymes. In addition, the SE and TE interventions altered the structure and abundance of specific flora. Different interventions inhibited the growth of different genera positively associated with obesity (Escherichia-Shigella, Helicobacter, etc.) and promoted the growth of Akkermansia and Bacteroides, thus affecting the chronic inflammatory state. Conclusion SE and TE both have synergistic effects on weight control and glucolipid metabolism regulation by improving insulin sensitivity and reducing lipid synthesis-related enzyme expression, whereas the combination of SE and TE (3:1) has a better effect on regulating energy metabolism and inhibiting chronic inflammation.
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Affiliation(s)
- Yuhan Xu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Xiuzhen Jia
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Wei Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Qiaoling Xie
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Meizhen Zhu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Zifu Zhao
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Jingyu Hao
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Haoqiu Li
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Jinrui Du
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Yan Liu
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Haotian Feng
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Jian He
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Hongwei Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
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Grant ET, Boudaud M, Muller A, Macpherson AJ, Desai MS. Maternal diet and gut microbiome composition modulate early-life immune development. EMBO Mol Med 2023; 15:e17241. [PMID: 37278126 PMCID: PMC10405054 DOI: 10.15252/emmm.202217241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 06/07/2023] Open
Abstract
In early life, the intestinal mucosa and immune system undergo a critical developmental process to contain the expanding gut microbiome while promoting tolerance toward commensals, yet the influence of maternal diet and microbial composition on offspring immune maturation remains poorly understood. We colonized germ-free mice with a consortium of 14 strains, fed them a standard fiber-rich chow or a fiber-free diet, and then longitudinally assessed offspring development during the weaning period. Unlike pups born to dams fed the fiber-rich diet, pups of fiber-deprived dams demonstrated delayed colonization with Akkermansia muciniphila, a mucin-foraging bacterium that can also use milk oligosaccharides. The pups of fiber-deprived dams exhibited an enrichment of colonic transcripts corresponding to defense response pathways and a peak in Il22 expression at weaning. Removal of A. muciniphila from the community, but maintenance on the fiber-rich diet, was associated with reduced proportions of RORγt-positive innate and adaptive immune cell subsets. Our results highlight the potent influence of maternal dietary fiber intake and discrete changes in microbial composition on the postnatal microbiome assemblage and early immune development.
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Affiliation(s)
- Erica T Grant
- Department of Infection and ImmunityLuxembourg Institute of HealthEsch‐sur‐AlzetteLuxembourg
- Faculty of Science, Technology and MedicineUniversity of LuxembourgEsch‐sur‐AlzetteLuxembourg
| | - Marie Boudaud
- Department of Infection and ImmunityLuxembourg Institute of HealthEsch‐sur‐AlzetteLuxembourg
| | - Arnaud Muller
- Bioinformatics Platform, Data Integration and AnalysisLuxembourg Institute of HealthStrassenLuxembourg
- LuxGen, Translational Medicine Operation HubLuxembourg Institute of HealthDudelangeLuxembourg
| | - Andrew J Macpherson
- Department of Visceral Surgery and MedicineBern University Hospital, University of BernBernSwitzerland
| | - Mahesh S Desai
- Department of Infection and ImmunityLuxembourg Institute of HealthEsch‐sur‐AlzetteLuxembourg
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17
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Zhou F, Mai T, Wang Z, Zeng Z, Shi J, Zhang F, Kong N, Jiang H, Guo L, Xu M, Lin J. The improvement of intestinal dysbiosis and hepatic metabolic dysfunction in dextran sulfate sodium-induced colitis mice: effects of curcumin. J Gastroenterol Hepatol 2023; 38:1333-1345. [PMID: 37210613 DOI: 10.1111/jgh.16205] [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: 10/15/2022] [Revised: 04/13/2023] [Accepted: 04/20/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND AND AIM Curcumin may have promising application in the prevention and amelioration of inflammatory bowel disease (IBD). However, the underlying mechanisms underpinning the ability of curcumin to interact with the gut and liver in IBD remains to be defined, which is the exploration aim of this study. METHODS Mice with dextran sulfate sodium salt (DSS)-induced acute colitis were treated either with 100 mg/kg of curcumin or phosphate buffer saline (PBS). Hematoxylin-eosin (HE) staining, 16S rDNA Miseq sequencing, proton nuclear magnetic resonance (1 H NMR) spectroscopy, and liquid chromatography-tandem mass spectrometry (LC-MS/MS) were applied for analysis. Spearman's correlation coefficient (SCC) was utilized to assess the correlation between the modification of intestinal bacteria and hepatic metabolite parameters. RESULTS Curcumin supplementation not only prevented further loss of body weight and colon length in IBD mice but also improved diseases activity index (DAI), colonic mucosal injury, and inflammatory infiltration. Meanwhile, curcumin restored the composition of the gut microbiota, significantly increased Akkermansia, Muribaculaceae_unclassified, and Muribaculum, and significantly elevated the concentration of propionate, butyrate, glycine, tryptophan, and betaine in the intestine. For hepatic metabolic disturbances, curcumin intervention altered 14 metabolites, including anthranilic acid and 8-amino-7-oxononanoate while enriching pathways related to the metabolism of bile acids, glucagon, amino acids, biotin, and butanoate. Furthermore, SCC analysis revealed a potential correlation between the upregulation of intestinal probiotics and alterations in liver metabolites. CONCLUSION The therapeutic mechanism of curcumin against IBD mice occurs by improving intestinal dysbiosis and liver metabolism disorders, thus contributing to the stabilization of the gut-liver axis.
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Affiliation(s)
- Feini Zhou
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Ting Mai
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Ziren Wang
- The Third School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhaolong Zeng
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Jingjing Shi
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Fan Zhang
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
- Key Laboratory of Digestive Pathophysiology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang, Hangzhou, 310006, China
| | - Ning Kong
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Hao Jiang
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Lingnan Guo
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Maosheng Xu
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Jiangnan Lin
- The First School of Clinical Medicine of Zhejiang Chinese Medical University, Hangzhou, China
- Department of Radiology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
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Abbasi A, Bazzaz S, Da Cruz AG, Khorshidian N, Saadat YR, Sabahi S, Ozma MA, Lahouty M, Aslani R, Mortazavian AM. A Critical Review on Akkermansia muciniphila: Functional Mechanisms, Technological Challenges, and Safety Issues. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10118-x. [PMID: 37432597 DOI: 10.1007/s12602-023-10118-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2023] [Indexed: 07/12/2023]
Abstract
Due to its physiological benefits from in vitro and in vivo points of view, Akkermansia muciniphila, a common colonizer in the human gut mucous layer, has consistently been identified as an option for the next-generation probiotic. A. muciniphila is a significant bacterium that promotes host physiology. However, it also has a great deal of potential to become a probiotic due to its physiological advantages in a variety of therapeutic circumstances. Therefore, it can be established that the abundance of A. muciniphila in the gut environment, which is controlled by many genetic and dietary variables, is related to the biological behaviors of the intestinal microbiota and gut dysbiosis/eubiosis circumstances. Before A. muciniphila is widely utilized as a next-generation probiotic, regulatory obstacles, the necessity for significant clinical trials, and the sustainability of manufacturing must be eliminated. In this review, the outcomes of recent experimental and clinical reports are comprehensively reviewed, and common colonization patterns, main factors involved in the colonization of A. muciniphila in the gut milieu, their functional mechanisms in establishing homeostasis in the metabolic and energy pathways, the promising delivery role of microencapsulation, potential genetic engineering strategies, and eventually safety issues of A. muciniphila have been discussed.
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Affiliation(s)
- Amin Abbasi
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sara Bazzaz
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Adriano G Da Cruz
- Department of Food Processing, Federal Institute of Science and Technology Education of Rio de Janeiro (IFRJ) - Campus Maracanã, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Nasim Khorshidian
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Sahar Sabahi
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahdi Asghari Ozma
- Department of Medical Bacteriology and Virology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Lahouty
- Department of Microbiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Ramin Aslani
- Food Safety and Hygiene Division, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir M Mortazavian
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Yin Y, Martínez R, Zhang W, Estévez M. Crosstalk between dietary pomegranate and gut microbiota: evidence of health benefits. Crit Rev Food Sci Nutr 2023:1-27. [PMID: 37335106 DOI: 10.1080/10408398.2023.2219763] [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: 06/21/2023]
Abstract
Gut microbiota (GM) is an invisible organ that plays an important role in human health. Increasing evidence suggests that polyphenols in pomegranate (punicalagin, PU) could serve as prebiotics to modulate the composition and function of GM. In turn, GM transform PU into bioactive metabolites such as ellagic acid (EA) and urolithin (Uro). In this review, the interplay between pomegranate and GM is thoroughly described by unveiling a dialog in which both actors seem to affect each other's roles. In a first dialog, the influence of bioactive compounds from pomegranate on GM is described. The second act shows how the GM biotransform pomegranate phenolics into Uro. Finally, the health benefits of Uro and that related molecular mechanism are summarized and discussed. Intake of pomegranate promotes beneficial bacteria in GM (e.g. Lactobacillus spp., Bifidobacterium spp.) while reducing the growth of harmful bacteria (e.g. Bacteroides fragilis group, Clostridia). Akkermansia muciniphila, and Gordonibacter spp., among others, biotransform PU and EA into Uro. Uro contributes to strengthening intestinal barrier and reducing inflammatory processes. Yet, Uro production varies greatly among individuals and depend on GM composition. Uro-producing bacteria and precise metabolic pathways need to be further elucidated therefore contributing to personalized and precision nutrition.
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Affiliation(s)
- Yantao Yin
- Key Laboratory of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
- TECAL Research Group, IPROCAR Research Institute, Universidad de Extremadura, Caceres, Spain
| | - Remigio Martínez
- TECAL Research Group, IPROCAR Research Institute, Universidad de Extremadura, Caceres, Spain
- Infectious Diseases Unit. Animal Health Department, University of Extremadura, Caceres, Spain
- Departamento de Sanidad Animal, Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), UIC Zoonosis y Enfermedades Emergentes ENZOEM, University of Córdoba, Córdoba, Spain
| | - Wangang Zhang
- Key Laboratory of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Mario Estévez
- TECAL Research Group, IPROCAR Research Institute, Universidad de Extremadura, Caceres, Spain
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Pan W, Du J, An L, Xu G, Yuan G, Sheng Y, Sun J, Wang M, Zhao N, Guo X, Li H, Han X. Sika deer velvet antler protein extract modulater bone metabolism and the structure of gut microbiota in ovariectomized mice. Food Sci Nutr 2023; 11:3309-3319. [PMID: 37324858 PMCID: PMC10261755 DOI: 10.1002/fsn3.3316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 02/21/2023] [Accepted: 02/26/2023] [Indexed: 09/20/2023] Open
Abstract
Osteoporosis is a systemic osteopathy characterized by bone metabolism disorders that become more serious with age increases in postmenopausal women. Recent studies have found that antler protein is the main bioactive component of cervus pantotrichum, and it has a positive regulatory effect on bone metabolism and can improve estrogen level. This study aimed to investigate the effect of velvet antler extract (VAE) on the prevention of osteoporosis and the modulation of gut microbiota in ovariectomized (OVX) mice. OVX mice treated with 12 weeks of VAE exhibited higher levels of serum BGP, Ca2+, CT, and HyP (p < .05). Micro-CT scans showed that VAE significantly elevated bone volume fraction (BV/TV), trabecular bone number (Tb.N), trabecular bone thickness (Tb.Th), trabecular bone connection density (Conn.D), decreased trabecular separation (Tb.Sp), and structural modality index (SMI) than untreated OVX mice. The right tibial retinaculum in the VAE group was clearer, with a clearer reticular structure, smaller gaps, a tighter distribution, and a more orderly arrangement. The gut microbiota of the cecal contents was analyzed by 16 s rDNA amplicon sequencing. The data indicated that VAE modulated the species, numbers, and diversity of the gut microbiota in OVX mice. Ovariectomy caused dysbiosis of the intestinal microbiota by increasing the ratio of Firmicutes to Bacteroidetes in mice, but the ratio decreased after treatment with VAE. These results suggest that VAE has a therapeutic effect on OVX mice via modulate bone-related biochemical markers in serum and structure of gut microbiota.
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Affiliation(s)
- Wang Pan
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Juan Du
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Liping An
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Guangyu Xu
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Guangxin Yuan
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Yu Sheng
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Jingbo Sun
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Manli Wang
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Nanxi Zhao
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Xiao Guo
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Hongyu Li
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
| | - Xiao Han
- Department of Pharmaceutical AnalysisBeihua University College of PharmacyJilinChina
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Cheng H, Zhang D, Wu J, Liu J, Tan Y, Feng W, Peng C. Atractylodes macrocephala Koidz. volatile oil relieves acute ulcerative colitis via regulating gut microbiota and gut microbiota metabolism. Front Immunol 2023; 14:1127785. [PMID: 37205093 PMCID: PMC10187138 DOI: 10.3389/fimmu.2023.1127785] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/24/2023] [Indexed: 05/21/2023] Open
Abstract
Background Atractylodes macrocephala Koidz. (AM) is a functional food with strong ant-colitis activity. AM volatile oil (AVO) is the main active ingredient of AM. However, no study has investigated the improvement effect of AVO on ulcerative colitis (UC) and the bioactivity mechanism also remains unknown. Here, we investigated whether AVO has ameliorative activity on acute colitis mice and its mechanism from the perspective of gut microbiota. Methods Acute UC was induced in C57BL/6 mice by dextran sulfate sodium and treated with the AVO. Body weight, colon length, colon tissue pathology, and so on were assessed. The gut microbiota composition was profiled using 16s rRNA sequencing and global metabolomic profiling of the feces was performed. The results showed that AVO can alleviate bloody diarrhea, colon damage, and colon inflammation in colitis mice. In addition, AVO decreased potentially harmful bacteria (Turicibacter, Parasutterella, and Erysipelatoclostridium) and enriched potentially beneficial bacteria (Enterorhabdus, Parvibacter, and Akkermansia). Metabolomics disclosed that AVO altered gut microbiota metabolism by regulating 56 gut microbiota metabolites involved in 102 KEGG pathways. Among these KEGG pathways, many metabolism pathways play an important role in maintaining intestine homeostasis, such as amino acid metabolism (especially tryptophan metabolism), bile acids metabolism, and retinol metabolism. Conclusion In conclusion, our study indicated that AVO can be expected as novel prebiotics to treat ulcerative colitis, and modulating the composition and metabolism of gut microbiota may be its pharmacological mechanism.
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Affiliation(s)
- Hao Cheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dandan Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Juan Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuzhu Tan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wuwen Feng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Pezzino S, Sofia M, Mazzone C, Castorina S, Puleo S, Barchitta M, Agodi A, Gallo L, La Greca G, Latteri S. Gut Microbiome in the Progression of NAFLD, NASH and Cirrhosis, and Its Connection with Biotics: A Bibliometric Study Using Dimensions Scientific Research Database. BIOLOGY 2023; 12:biology12050662. [PMID: 37237476 DOI: 10.3390/biology12050662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/30/2023] [Accepted: 04/19/2023] [Indexed: 05/28/2023]
Abstract
There is growing evidence that gut microbiota dysbiosis is linked to the etiopathogenesis of nonalcoholic fatty liver disease (NAFLD), from the initial stage of disease until the progressive stage of nonalcoholic steatohepatitis (NASH) and the final stage of cirrhosis. Conversely, probiotics, prebiotics, and synbiotics have shown promise in restoring dysbiosis and lowering clinical indicators of disease in a number of both preclinical and clinical studies. Additionally, postbiotics and parabiotics have recently garnered some attention. The purpose of this bibliometric analysis is to assess recent publishing trends concerning the role of the gut microbiome in the progression of NAFLD, NASH and cirrhosis and its connection with biotics. The free access version of the Dimensions scientific research database was used to find publications in this field from 2002 to 2022. VOSviewer and Dimensions' integrated tools were used to analyze current research trends. Research into the following topics is expected to emerge in this field: (1) evaluation of risk factors which are correlated with the progression of NAFLD, such as obesity and metabolic syndrome; (2) pathogenic mechanisms, such as liver inflammation through toll-like receptors activation, or alteration of short-chain fatty acids metabolisms, which contribute to NAFLD development and its progression in more severe forms, such as cirrhosis; (3) therapy for cirrhosis through dysbiosis reduction, and research on hepatic encephalopathy a common consequence of cirrhosis; (4) evaluation of diversity, and composition of gut microbiome under NAFLD, and as it varies under NASH and cirrhosis by rRNA gene sequencing, a tool which can also be used for the development of new probiotics and explore into the impact of biotics on the gut microbiome; (5) treatments to reduce dysbiosis with new probiotics, such as Akkermansia, or with fecal microbiome transplantation.
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Affiliation(s)
- Salvatore Pezzino
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Maria Sofia
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Chiara Mazzone
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Sergio Castorina
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Stefano Puleo
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Martina Barchitta
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Antonella Agodi
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Luisa Gallo
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Gaetano La Greca
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
| | - Saverio Latteri
- Department of Surgical Sciences and Advanced Technologies "G. F. Ingrassia", Cannizzaro Hospital, University of Catania, 95123 Catania, Italy
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Shin JH, Lee Y, Song EJ, Lee D, Jang SY, Byeon HR, Hong MG, Lee SN, Kim HJ, Seo JG, Jun DW, Nam YD. Faecalibacterium prausnitzii prevents hepatic damage in a mouse model of NASH induced by a high-fructose high-fat diet. Front Microbiol 2023; 14:1123547. [PMID: 37007480 PMCID: PMC10060964 DOI: 10.3389/fmicb.2023.1123547] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/20/2023] [Indexed: 03/18/2023] Open
Abstract
IntroductionNonalcoholic steatohepatitis (NASH) is an advanced nonalcoholic fatty liver disease characterized by chronic inflammation and fibrosis. A dysbiosis of the gut microbiota has been associated with the pathophysiology of NASH, and probiotics have proven helpful in its treatment and prevention. Although both traditional and next-generation probiotics have the potential to alleviate various diseases, studies that observe the therapeutic effect of next-generation probiotics on NASH are lacking. Therefore, we investigated whether a next-generation probiotic candidate, Faecalibacterium prausnitzii, contributed to the mitigation of NASH.MethodsIn this study, we conducted 16S rRNA sequencing analyses in patients with NASH and healthy controls. To test F. prausnitzii could alleviate NASH symptoms, we isolated four F. prausnitzii strains (EB-FPDK3, EB-FPDK9, EB-FPDK11, and EB-FPYYK1) from fecal samples collected from four healthy individuals. Mice were maintained on a high-fructose high-fat diet for 16 weeks to induce a NASH model and received oral administration of the bacterial strains. Changes in characteristic NASH phenotypes were assessed via oral glucose tolerance tests, biochemical assays, and histological analyses.Results16S rRNA sequencing analyses confirmed that the relative abundance of F. prausnitzii reduced significantly in patients with NASH compared to healthy controls (p < 0.05). In the NASH mice, F. prausnitzii supplementation improved glucose homeostasis, prevented hepatic lipid accumulation, curbed liver damage and fibrosis, restored damaged gut barrier functions, and alleviated hepatic steatosis and liver inflammation. Furthermore, real-time PCR assays documented that the four F. prausnitzii strains regulated the expression of genes related to hepatic steatosis in these mice.DiscussionOur study, therefore, confirms that the administration of F. prausnitzii bacteria can alleviate NASH symptoms. We propose that F. prausnitzii has the potential to contribute to the next-generation probiotic treatment of NASH.
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Affiliation(s)
- Ji-Hee Shin
- Research Group of Personalized Diet, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Yoonmi Lee
- R&D Center, Enterobiome Inc., Goyang-si, Republic of Korea
| | - Eun-Ji Song
- Research Group of Personalized Diet, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, Republic of Korea
| | - Dokyung Lee
- R&D Center, Enterobiome Inc., Goyang-si, Republic of Korea
| | - Seo-Yul Jang
- R&D Center, Enterobiome Inc., Goyang-si, Republic of Korea
| | - Hye Rim Byeon
- R&D Center, Enterobiome Inc., Goyang-si, Republic of Korea
| | - Moon-Gi Hong
- R&D Center, Enterobiome Inc., Goyang-si, Republic of Korea
| | - Sang-Nam Lee
- R&D Center, Enterobiome Inc., Goyang-si, Republic of Korea
| | - Hyun-Jin Kim
- Division of Applied Life Science (BK21 Four), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju-si, Republic of Korea
| | - Jae-Gu Seo
- R&D Center, Enterobiome Inc., Goyang-si, Republic of Korea
- *Correspondence: Jae-Gu Seo,
| | - Dae Won Jun
- Department of Internal Medicine, Hanyang University, College of Medicine, Seoul, Republic of Korea
- Dae Won Jun,
| | - Young-Do Nam
- Research Group of Personalized Diet, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, Republic of Korea
- Young-Do Nam,
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Kato I, Sun J. Microbiome and Diet in Colon Cancer Development and Treatment. Cancer J 2023; 29:89-97. [PMID: 36957979 PMCID: PMC10037538 DOI: 10.1097/ppo.0000000000000649] [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: 03/25/2023]
Abstract
ABSTRACT Diet plays critical roles in defining our immune responses, microbiome, and progression of human diseases. With recent progress in sequencing and bioinformatic techniques, increasing evidence indicates the importance of diet-microbial interactions in cancer development and therapeutic outcome. Here, we focus on the epidemiological studies on diet-bacterial interactions in the colon cancer. We also review the progress of mechanistic studies using the experimental models. Finally, we discuss the limits and future directions in the research of microbiome and diet in cancer development and therapeutic outcome. Now, it is clear that microbes can influence the efficacy of cancer therapies. These research results open new possibilities for the diagnosis, prevention, and treatment of cancer. However, there are still big gaps to apply these new findings to the clinical practice.
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Affiliation(s)
- Ikuko Kato
- Department of Oncology, Wayne State University, Detroit Michigan, USA
- Department of Pathology, Wayne State University, Detroit Michigan, USA
| | - Jun Sun
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois Chicago, 840 S Wood Street, Room 704 CSB, MC716, Chicago, IL 60612, USA
- Department of Microbiology/Immunology, University of Illinois Chicago, Chicago, IL 60612, USA
- University of Illinois Cancer Center, 818 S Wolcott Avenue, Chicago, IL 60612, USA
- Jesse Brown VA Medical Center, 820 S. Damen Avenue, Chicago, IL 60612, USA
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Amuc Prevents Liver Inflammation and Oxidative Stress in Mice Challenged with Salmonella Typhimurium. J Nutr 2023; 153:532-542. [PMID: 36894245 DOI: 10.1016/j.tjnut.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/27/2022] [Accepted: 12/14/2022] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Salmonella typhimurium is a pathogen that causes gastroenteritis in humans and animals. Amuc_1100 (hereafter called Amuc), the outer membrane protein of Akkermansia muciniphila, alleviates metabolic disorders and maintains immune homeostasis. OBJECTIVE This study was conducted to determine whether there is a protective effect of Amuc administration. METHODS Male 6-wk-old C57BL6J mice were randomly allocated into 4 groups: CON (control), Amuc (gavaged with Amuc, 100 μg/d for 14 d), ST (oral administration of 1.0 × 106 CFU S. typhimurium on day 7), and ST + Amuc (Amuc supplementation for 14 d, S. typhimurium administration on day 7). Serum and tissue samples were collected 14 d after treatment. Histological damage, inflammatory cell infiltration, apoptosis, and protein levels of genes associated with inflammation and antioxidant stress were analyzed. Data were analyzed by 2-way ANOVA and Duncan's multiple comparisons using SPSS software. RESULTS The ST group mice had 17.1% lower body weight, 1.3-3.6-fold greater organ index (organ weight/body weight for organs including the liver and spleen), 10-fold greater liver damage score, and 3.4-10.1-fold enhanced aspartate transaminase, alanine transaminase, and myeloperoxidase activities, and malondialdehyde and hydrogen peroxide concentrations compared with controls (P < 0.05). The S. typhimurium-induced abnormalities were prevented by Amuc supplementation. Furthermore, the ST + Amuc group mice had 1.44-1.89-fold lower mRNA levels of proinflammatory cytokines (interleukin [Il]6, Il1b, and tumor necrosis factor-α) and chemokines (chemokine ligand [Ccl]2, Ccl3, and Ccl8) and 27.1%-68.5% lower levels of inflammation-related proteins in the liver than ST group mice (P < 0.05). CONCLUSIONS Amuc treatment prevents S. typhimurium-induced liver damage partly through the toll-like receptor (TLR)2/TLR4/myeloid differentiation factor 88 and nuclear factor-κB signaling as well as nuclear factor erythroid-2 related factor signaling pathways. Thus, Amuc supplementation may be effective in treating liver injury in S. typhimurium-challenged mice.
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Lo Conte M, Antonini Cencicchio M, Ulaszewska M, Nobili A, Cosorich I, Ferrarese R, Massimino L, Andolfo A, Ungaro F, Mancini N, Falcone M. A diet enriched in omega-3 PUFA and inulin prevents type 1 diabetes by restoring gut barrier integrity and immune homeostasis in NOD mice. Front Immunol 2023; 13:1089987. [PMID: 36713378 PMCID: PMC9880528 DOI: 10.3389/fimmu.2022.1089987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/23/2022] [Indexed: 01/15/2023] Open
Abstract
Introduction The integrity of the gut barrier (GB) is fundamental to regulate the crosstalk between the microbiota and the immune system and to prevent inflammation and autoimmunity at the intestinal level but also in organs distal from the gut such as the pancreatic islets. In support to this idea, we recently demonstrated that breakage of GB integrity leads to activation of islet-reactive T cells and triggers autoimmune Type 1 Diabetes (T1D). In T1D patients as in the NOD mice, the spontaneous model of autoimmune diabetes, there are alterations of the GB that specifically affect structure and composition of the mucus layer; however, it is yet to be determined whether a causal link between breakage of the GB integrity and occurrence of autoimmune T1D exists. Methods Here we restored GB integrity in the NOD mice through administration of an anti-inflammatory diet (AID- enriched in soluble fiber inulin and omega 3-PUFA) and tested the effect on T1D pathogenesis. Results We found that the AID prevented T1D in NOD mice by restoring GB integrity with increased mucus layer thickness and higher mRNA transcripts of structural (Muc2) and immunoregulatory mucins (Muc1 and Muc3) as well as of tight junction proteins (claudin1). Restoration of GB integrity was linked to reduction of intestinal inflammation (i.e., reduced expression of IL-1β, IL-23 and IL-17 transcripts) and expansion of regulatory T cells (FoxP3+ Treg cells and IL-10+ Tr1 cells) at the expenses of effector Th1/Th17 cells in the intestine, pancreatic lymph nodes (PLN) and intra-islet lymphocytes (IIL) of AID-fed NOD mice. Importantly, the restoration of GB integrity and immune homeostasis were associated with enhanced concentrations of anti-inflammatory metabolites of the ω3/ω6 polyunsaturated fatty acids (PUFA) and arachidonic pathways and modifications of the microbiome profile with increased relative abundance of mucus-modulating bacterial species such as Akkermansia muciniphila and Akkermansia glycaniphila. Discussion Our data provide evidence that the restoration of GB integrity and intestinal immune homeostasis through administration of a tolerogenic AID that changed the gut microbial and metabolic profiles prevents autoimmune T1D in preclinical models.
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Affiliation(s)
- Marta Lo Conte
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy,Università Vita-Salute San Raffaele, Milan, Italy
| | - Martina Antonini Cencicchio
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy,Università Vita-Salute San Raffaele, Milan, Italy
| | - Marynka Ulaszewska
- Proteomics and Metabolomics Facility (ProMeFa), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Angelica Nobili
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ilaria Cosorich
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Luca Massimino
- Experimental Gastroenterology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Annapaola Andolfo
- Proteomics and Metabolomics Facility (ProMeFa), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Federica Ungaro
- Experimental Gastroenterology Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy,Laboratory of Medical Microbiology and Virology, Università “Vita-Salute” San Raffaele, Milan, Italy
| | - Marika Falcone
- Autoimmune Pathogenesis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy,*Correspondence: Marika Falcone,
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Effects of Initial Combinations of Gemigliptin Plus Metformin Compared with Glimepiride Plus Metformin on Gut Microbiota and Glucose Regulation in Obese Patients with Type 2 Diabetes: The INTESTINE Study. Nutrients 2023; 15:nu15010248. [PMID: 36615904 PMCID: PMC9824054 DOI: 10.3390/nu15010248] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 01/06/2023] Open
Abstract
The efficacy and safety of medications can be affected by alterations in gut microbiota in human beings. Among antidiabetic medications, incretin-based therapy such as dipeptidyl peptidase 4 inhibitors might affect gut microbiomes, which are related to glucose metabolism. This was a randomized, controlled, active-competitor study that aimed to compare the effects of combinations of gemigliptin−metformin vs. glimepiride−metformin as initial therapies on gut microbiota and glucose homeostasis in drug-naïve patients with type 2 diabetes. Seventy drug-naïve patients with type 2 diabetes (mean age, 52.2 years) with a glycated hemoglobin (HbA1c) level ≥7.5% were assigned to either gemigliptin−metformin or glimepiride−metformin combination therapies for 24 weeks. Changes in gut microbiota, biomarkers linked to glucose regulation, body composition, and amino acid blood levels were investigated. Although both treatments decreased the HbA1c levels significantly, the gemigliptin−metformin group achieved HbA1c ≤ 7.0% without hypoglycemia or weight gain more effectively than did the glimepiride−metformin group (59% vs. 24%; p < 0.05). At the phylum level, the Firmicutes/Bacteroidetes ratio tended to decrease after gemigliptin−metformin therapy (p = 0.065), with a notable depletion of taxa belonging to Firmicutes, including Lactobacillus, Ruminococcus torques, and Streptococcus (all p < 0.05). However, regardless of the treatment modality, a distinct difference in the overall gut microbiome composition was noted between patients who reached the HbA1c target goal and those who did not (p < 0.001). Treatment with gemigliptin−metformin resulted in a higher achievement of the glycemic target without hypoglycemia or weight gain, better than with glimepiride−metformin; these improvements might be related to beneficial changes in gut microbiota.
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Qi C, Tu H, Zhao Y, Zhou J, Chen J, Hu H, Yu R, Sun J. Breast Milk-Derived Limosilactobacillus reuteri Prevents Atopic Dermatitis in Mice via Activating Retinol Absorption and Metabolism in Peyer's Patches. Mol Nutr Food Res 2023; 67:e2200444. [PMID: 36480309 DOI: 10.1002/mnfr.202200444] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/24/2022] [Indexed: 12/13/2022]
Abstract
SCOPE Supplementing Limosilactobacillus reuteri Fn041, a breast milk-derived probiotic from agricultural and pastoral areas, to maternal mice during late pregnancy and lactation prevents atopic dermatitis (AD) in offspring. This study aims to elucidate the molecular mechanism of Fn041-mediated immune regulation. METHODS AND RESULTS Fn041 is administered prenatal and postnatal to maternal mice, and to offspring after weaning. The ears are administered with calcipotriol to induce AD. Fn041 treatment significantly alleviates ear inflammation, and reduces mast cell infiltration. Fn041 treatment upregulates and downregulates intestinal ZO-1 and Claudin-2 mRNA expression, respectively. Transcriptome analysis of Peyer's patches reveals that pathways related to DNA damage repair are activated in AD mice, which is inhibited by Fn041 treatment. Fn041 activates pathways related to retinol absorption and metabolism. Untargeted metabolomic analysis reveals that Fn041 treatment increases plasma retinol and kynurenine. Fn041 treatment does not significantly alter the overall cecal microbiota profile, only increases the relative abundances of Ligilactobacillus apodemi, Ligilactobacillus murinus, Akkermansia muciniphila, and Bacteroides thetaiotaomicron. CONCLUSIONS Fn041 induces anti-AD immune responses directly by promoting the absorption and metabolism of retinol in Peyer's patches, and plays an indirect role by strengthening the mucosal barrier and increasing the abundance of specific anti-AD bacteria in the cecum.
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Affiliation(s)
- Ce Qi
- Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China
| | - Huayu Tu
- Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China
| | - Yuning Zhao
- Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China
| | - Jingbo Zhou
- Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China
| | - Jie Chen
- Department of Pediatric Cardiology Nephrology and Rheumatism, The Affiliated Hospital of Qingdao University Medical College, Qingdao, 266003, China
| | - Haiting Hu
- Department of Neonatology, The Affiliated Changzhou Maternity and Child Health Care Hospital of Nanjing Medical University, Changzhou, 213004, China
| | - Renqiang Yu
- Department of Neonatology, Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, 214022, China
| | - Jin Sun
- Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China
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Liu M, Li Q, Tan L, Wang L, Wu F, Li L, Zhang G. Host-microbiota interactions play a crucial role in oyster adaptation to rising seawater temperature in summer. ENVIRONMENTAL RESEARCH 2023; 216:114585. [PMID: 36252835 DOI: 10.1016/j.envres.2022.114585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Climate change, represented by rising and fluctuating temperature, induces systematic changes in marine organisms and in their bacterial symbionts. However, the role of host-microbiota interactions in the host's response to rising temperature and the underlying mechanisms are incompletely understood in marine organisms. Here, the symbiotic intestinal microbiota and transcriptional responses between diploid and triploid oysters that displayed susceptible and resistant performance under the stress of rising temperature during a summer mortality event were compared to investigate the host-microbiota interactions. The rising and fluctuating temperatures triggered an earlier onset and higher mortality in susceptible oysters (46.7%) than in resistant oysters (17.3%). Correlation analysis between microbial properties and environmental factors showed temperature was strongly correlated with indices of α-diversity and the abundance of top 10 phyla, indicating that temperature significantly shaped the intestinal microbiota of oysters. The microbiota structure of resistant oysters exhibited more rapid changes in composition and diversity compared to susceptible oysters before peak mortality, indicating that resistant oysters possessed a stronger ability to regulate their symbiotic microbiota. Meanwhile, linear discriminant analysis effect size (LefSe) analysis found that the probiotics Verrucomicrobiales and Clostridiales were highly enriched in resistant oysters, and that potential pathogens Betaproteobacteriales and Acidobacteriales were enriched in susceptible oysters. These results implied that the symbiotic microbiota played a significant role in the oysters' adaptation to rising temperature. Accompanying the decrease in unfavorable bacteria before peak mortality, genes related to phagocytosis and lysozymes were upregulated and the xenobiotics elimination pathway was exclusively expressed in resistant oysters, demonstrating the validity of these immunological functions in controlling proliferation of pathogens driven by rising temperature. Compromised immunological functions might lead to proliferation of pathogens in susceptible oysters. This study might uncover a conserved mechanism of adaptation to rising temperature in marine invertebrates from the perspective of interactions between host and symbiotic microbiota.
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Affiliation(s)
- Mingkun Liu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao, 266071, China
| | - Qingyuan Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao, 266071, China
| | - Lintao Tan
- Rushan Marine Economy and Development Center, Rushan, 264599, China
| | - Luping Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao, 266071, China
| | - Fucun Wu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao, 266071, China
| | - Li Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao, 266071, China.
| | - Guofan Zhang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China; National and Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao, 266071, China
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Liu Y, Xu M, Zhao Z, Wu J, Wang X, Sun X, Han S, Pan C. Analysis on bacterial community structure of new and old fermented pit mud of Shedian Liquor. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2022.2117644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Affiliation(s)
- Yanbo Liu
- Department of Brewing Engineering, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Postdoctoral Programme, Henan Yangshao Distillery Co., Ltd, Mianchi, PR China
- Department of Brewing Engineering, Henan Liquor Style Engineering Technology Research Center, Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Zhengzhou Key Laboratory of Liquor Brewing Microbial Technology, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
| | - Mingyue Xu
- Department of Brewing Engineering, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Department of Brewing Engineering, Henan Liquor Style Engineering Technology Research Center, Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Zhengzhou Key Laboratory of Liquor Brewing Microbial Technology, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
| | - Zhijun Zhao
- Department of Brewing Engineering, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Department of Brewing Engineering, Henan Liquor Style Engineering Technology Research Center, Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Zhengzhou Key Laboratory of Liquor Brewing Microbial Technology, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
| | - Junyi Wu
- Department of Brewing Engineering, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Department of Brewing Engineering, Henan Liquor Style Engineering Technology Research Center, Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Zhengzhou Key Laboratory of Liquor Brewing Microbial Technology, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
| | - Xian Wang
- SheDianLaoJiu Co. Ltd, Sheqi, PR China
| | - Xiyu Sun
- Department of Brewing Engineering, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Department of Brewing Engineering, Henan Liquor Style Engineering Technology Research Center, Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Zhengzhou Key Laboratory of Liquor Brewing Microbial Technology, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- ZhangGongLaoJiu Wine Co. Ltd, Ningling, PR China
| | - Suna Han
- Postdoctoral Programme, Henan Yangshao Distillery Co., Ltd, Mianchi, PR China
| | - Chunmei Pan
- Department of Brewing Engineering, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Department of Brewing Engineering, Henan Liquor Style Engineering Technology Research Center, Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
- Zhengzhou Key Laboratory of Liquor Brewing Microbial Technology, College of Food and Biological Engineering (Liquor College), Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
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Metabolic Fate of Orally Ingested Proanthocyanidins through the Digestive Tract. Antioxidants (Basel) 2022; 12:antiox12010017. [PMID: 36670878 PMCID: PMC9854439 DOI: 10.3390/antiox12010017] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/08/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Proanthocyanidins (PACs), which are oligomers or polymers of flavan-3ols with potent antioxidative activity, are well known to exert a variety of beneficial health effects. Nonetheless, their bioaccessibility and bioavailability have been poorly assessed. In this review, we focused on the metabolic fate of PACs through the digestive tract. When oligomeric and polymeric PACs are orally ingested, a large portion of the PACs reach the colon, where a small portion is subjected to microbial degradation to phenolic acids and valerolactones, despite the possibility that slight depolymerization of PACs occurs in the stomach and small intestine. Valerolactones, as microbiota-generated catabolites of PACs, may contribute to some of the health benefits of orally ingested PACs. The remaining portion interacts with gut microbiota, resulting in improved microbial diversity and, thereby, contributing to improved health. For instance, an increased amount of beneficial gut bacteria (e.g., Akkermansia muciniphila and butyrate-producing bacteria) could ameliorate host metabolic functions, and a lowered ratio of Firmicutes/Bacteroidetes at the phylum level could mitigate obesity-related metabolic disorders.
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Xie S, Zhang R, Li Z, Liu C, Xiang W, Lu Q, Chen Y, Yu Q. Indispensable role of melatonin, a scavenger of reactive oxygen species (ROS), in the protective effect of Akkermansia muciniphila in cadmium-induced intestinal mucosal damage. Free Radic Biol Med 2022; 193:447-458. [PMID: 36328351 DOI: 10.1016/j.freeradbiomed.2022.10.316] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 10/15/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
The gastrointestinal tract is the main target of cadmium toxicity. However, whether Akkermansia muciniphila (A. muciniphila), which has been reported to be the next generation of promising probiotics, can alleviate cadmium-induced intestinal damage has not been investigated. In this study, we found that compared to the cadmium exposure group, mice gavaged with A. muciniphila showed less severe intestinal mucosal damage, with improved bodyweight, colon length, a decline in inflammation, and significantly increased glutathione and goblet cell numbers. Meanwhile, melatonin was interestingly found to be strikingly increased after A. muciniphila treatment. We then demonstrated that melatonin also could ameliorate the intestinal mucosal damage caused by cadmium through scavenging reactive oxygen species (ROS) and increasing the number of goblet cells. Furthermore, mice treated with inhibitors had a low level of melatonin and could not reproduce the beneficial effects of the A. muciniphila. Our results implied that the regulation of melatonin production by A. muciniphila is associated with an increase in enterochromaffin cells number, which determine melatonin secretion. This study indicated that the A. muciniphila-melatonin axis reduces cadmium-induced damage by increasing the goblet cells and scavenging the ROS, which may guide the prevention of the toxic effects of heavy metals.
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Affiliation(s)
- Shuang Xie
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, Jiangsu, 210095, PR China
| | - Rui Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, Jiangsu, 210095, PR China
| | - Zhaoyan Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, Jiangsu, 210095, PR China
| | - Chunru Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, Jiangsu, 210095, PR China
| | - Weiwei Xiang
- Laboratory of Microbiology, Immunology and Metabolism, Diprobio (Shanghai) Co, Limited, Shanghai, 200335, PR China
| | - Qianqian Lu
- Laboratory of Microbiology, Immunology and Metabolism, Diprobio (Shanghai) Co, Limited, Shanghai, 200335, PR China
| | - Yanyu Chen
- Laboratory of Microbiology, Immunology and Metabolism, Diprobio (Shanghai) Co, Limited, Shanghai, 200335, PR China
| | - Qinghua Yu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Weigang 1, Nanjing, Jiangsu, 210095, PR China; Laboratory of Microbiology, Immunology and Metabolism, Diprobio (Shanghai) Co, Limited, Shanghai, 200335, PR China.
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Li Z, Ke H, Wang Y, Chen S, Liu X, Lin Q, Wang P, Chen Y. Global trends in Akkermansia muciniphila research: A bibliometric visualization. Front Microbiol 2022; 13:1037708. [PMID: 36439840 PMCID: PMC9685322 DOI: 10.3389/fmicb.2022.1037708] [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: 09/06/2022] [Accepted: 10/28/2022] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Akkermansia muciniphila is a member of the gut microbiome, using mucin as sources of carbon, nitrogen, and energy. Since the first discovery of this unique bacterium in 2004, A. muciniphila has been extensively studied. It is considered a promising "next-generation beneficial microbe." The purpose of this paper is to sort out the research status and summarize the hotspots through bibliometric analysis of the publications of A. muciniphila. METHODS The publications about A. muciniphila from January 2004 to February 2022 were obtained from the Web of Science Core Collection. Visualization analyses were performed using three bibliometric tools and GraphPad Prism. RESULTS A total of 1,478 published documents were analyzed. Annual publication number grew from 1 in 2004 to 336 in 2021, with China being the leading producer (33.36%). De Vos, Willem M was the most productive author with the highest H-index (documents = 56, H-index = 37), followed by Cani, Patrice D (documents = 35, H-index = 25). And Scientific Reports published the most papers. PNAS was the keystone taxa in this field, with high betweenness centrality (0.11) and high frequency. The keywords with high frequency in recent years include: oxidative stress, diet, metformin, fecal microbiota transplantation, short-chain fatty acids, polyphenols, microbiota metabolites and so on. The keyword "oxidative stress" was observed to be increasing in frequency recently. CONCLUSION Over time, the scope of the research on the clinical uses of A. muciniphila has gradually increased, and was gradually deepened and developed toward a more precise level. A. muciniphila is likely to remain a research hotspot in the foreseeable future and may contribute to human health.
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Affiliation(s)
- Zitong Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haoran Ke
- Hepatology Unit, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ying Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shuze Chen
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiuying Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qianyun Lin
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Pu Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ye Chen
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Integrative Microecology Center, Department of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
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Lin H, Chen J, Ma S, An R, Li X, Tan H. The Association between Gut Microbiome and Pregnancy-Induced Hypertension: A Nested Case–Control Study. Nutrients 2022; 14:nu14214582. [PMID: 36364844 PMCID: PMC9657571 DOI: 10.3390/nu14214582] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
(1) Background: Pregnancy-induced hypertension (PIH) is associated with obvious microbiota dysbiosis in the third trimester of pregnancy. However, the mechanisms behind these changes remain unknown. Therefore, this study aimed to explore the relationship between the gut microbiome in early pregnancy and PIH occurrence. (2) Methods: A nested case–control study design was used based on the follow-up cohort. Thirty-five PIH patients and thirty-five matched healthy pregnant women were selected as controls. The gut microbiome profiles were assessed in the first trimester using metagenomic sequencing. (3) Results: Diversity analyses showed that microbiota diversity was altered in early pregnancy. At the species level, eight bacterial species were enriched in healthy controls: Alistipes putredinis, Bacteroides vulgatus, Ruminococcus torques, Oscillibacter unclassified, Akkermansia muciniphila, Clostridium citroniae, Parasutterella excrementihominis and Burkholderiales bacterium_1_1_47. Conversely, Eubacterium rectale, and Ruminococcus bromii were enriched in PIH patients. The results of functional analysis showed that the changes in these different microorganisms may affect the blood pressure of pregnant women by affecting the metabolism of vitamin K2, sphingolipid, lipid acid and glycine. (4) Conclusion: Microbiota dysbiosis in PIH patients begins in the first trimester of pregnancy, and this may be associated with the occurrence of PIH. Bacterial pathway analyses suggest that the gut microbiome might lead to the development of PIH through the alterations of function modules.
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Affiliation(s)
- Huijun Lin
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410000, China
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410000, China
| | - Junru Chen
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410000, China
| | - Shujuan Ma
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410000, China
- Correspondence: (S.M.); (H.T.)
| | - Rongjing An
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410000, China
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410000, China
| | - Xingli Li
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410000, China
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410000, China
| | - Hongzhuan Tan
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410000, China
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410000, China
- Correspondence: (S.M.); (H.T.)
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Calatayud M, Duysburgh C, Van den Abbeele P, Franckenstein D, Kuchina-Koch A, Marzorati M. Long-Term Lactulose Administration Improves Dysbiosis Induced by Antibiotic and C. difficile in the PathoGut TM SHIME Model. Antibiotics (Basel) 2022; 11:1464. [PMID: 36358119 PMCID: PMC9686563 DOI: 10.3390/antibiotics11111464] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 09/28/2023] Open
Abstract
Clostridioides difficile infection (CDI) is the leading cause of antibiotic-associated diarrhea and an important nosocomial infection with different severity degrees. Disruption of the gut microbiota by broad-spectrum antibiotics creates a proper environment for C. difficile colonization, proliferation, and clinical disease onset. Restoration of the gut microbial ecosystem through prebiotic interventions can constitute an effective complementary treatment of CDI. Using an adapted simulator of the human gut microbial ecosystem, the PathoGutTM SHIME, the effect of different long-term and repeated dose lactulose treatments was tested on C. difficile germination and growth in antibiotic-induced dysbiotic gut microbiota environments. The results showed that lactulose reduced the growth of viable C. difficile cells following clindamycin treatment, shifted the antibiotic-induced dysbiotic microbial community, and stimulated the production of health-promoting metabolites (especially butyrate). Recovery of the gut microenvironment by long-term lactulose administration following CDI was also linked to lactate production, decrease in pH and modulation of bile salt metabolism. At a structural level, lactulose showed a significant bifidogenic potential and restored key commensal members of the gut ecosystem such as Lactobacillaceae, Veillonellaceae and Lachnospiraceae. These results support further human intervention studies aiming to validate the in vitro beneficial effects of lactulose on gut microbiome recovery during antibiotic exposure and CDI.
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Affiliation(s)
- Marta Calatayud
- ProDigest BV, Technologiepark 82, 9052 Ghent, Belgium
- Center of Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | | | | | | | | | - Massimo Marzorati
- ProDigest BV, Technologiepark 82, 9052 Ghent, Belgium
- Center of Microbial Ecology and Technology (CMET), Ghent University, Coupure Links 653, 9000 Ghent, Belgium
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Functional Plasmon-Activated Water Increases Akkermansia muciniphila Abundance in Gut Microbiota to Ameliorate Inflammatory Bowel Disease. Int J Mol Sci 2022; 23:ijms231911422. [PMID: 36232724 PMCID: PMC9570201 DOI: 10.3390/ijms231911422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/22/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
Inflammatory bowel disease (IBD) is associated with dysbiosis and intestinal barrier dysfunction, as indicated by epithelial hyperpermeability and high levels of mucosal-associated bacteria. Changes in gut microbiota may be correlated with IBD pathogenesis. Additionally, microbe-based treatments could mitigate clinical IBD symptoms. Plasmon-activated water (PAW) is known to have an anti-inflammatory potential. In this work, we studied the association between the anti-inflammatory ability of PAW and intestinal microbes, thereby improving IBD treatment. We examined the PAW-induced changes in the colonic immune activity and microbiota of mice by immunohistochemistry and next generation sequencing, determined whether drinking PAW can mitigate IBD induced by 2,4,6-trinitrobenzene sulfonic acid (TNBS) and dysbiosis through mice animal models. The effects of specific probiotic species on mice with TNBS-induced IBD were also investigated. Experimental results indicated that PAW could change the local inflammation in the intestinal microenvironment. Moreover, the abundance of Akkermansia spp. was degraded in the TNBS-treated mice but elevated in the PAW-drinking mice. Daily rectal injection of Akkermansia muciniphila, a potential probiotic species in Akkermansia spp., also improved the health of the mice. Correspondingly, both PAW consumption and increasing the intestinal abundance of Akkermansia muciniphila can mitigate IBD in mice. These findings indicate that increasing the abundance of Akkermansia muciniphila in the gut through PAW consumption or other methods may mitigate IBD in mice with clinically significant IBD.
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Lakshmanan AP, Murugesan S, Al Khodor S, Terranegra A. The potential impact of a probiotic: Akkermansia muciniphila in the regulation of blood pressure—the current facts and evidence. Lab Invest 2022; 20:430. [PMID: 36153618 PMCID: PMC9509630 DOI: 10.1186/s12967-022-03631-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/07/2022] [Indexed: 11/25/2022]
Abstract
Akkermansia muciniphila (A. muciniphila) is present in the human gut microbiota from infancy and gradually increases in adulthood. The potential impact of the abundance of A. muciniphila has been studied in major cardiovascular diseases including elevated blood pressure or hypertension (HTN). HTN is a major factor in premature death worldwide, and approximately 1.28 billion adults aged 30–79 years have hypertension. A. muciniphila is being considered a next-generation probiotic and though numerous studies had highlighted the positive role of A. muciniphila in lowering/controlling the HTN, however, few studies had highlighted the negative impact of increased abundance of A. muciniphila in the management of HTN. Thus, in the review, we aimed to discuss the current facts, evidence, and controversy about the role of A. muciniphila in the pathophysiology of HTN and its potential effect on HTN management/regulation, which could be beneficial in identifying the drug target for the management of HTN.
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Kwon JG, Park SH, Kwak JE, Cho JH, Kim G, Lee D, Kim DH, Kim HB, Lee JH. Mouse feeding study and microbiome analysis of sourdough bread for evaluation of its health effects. Front Microbiol 2022; 13:989421. [PMID: 36212840 PMCID: PMC9532698 DOI: 10.3389/fmicb.2022.989421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Sourdough bread fermented with yeast and lactic acid bacteria (LAB) is thought to have various beneficial health effects. However, its beneficial effects were not fully evaluated with in vivo mouse model. To evaluate these effects in vivo, a mouse feeding study and microbiome analysis of white bread containing 40% sourdough (WBS) and yeast-leavened white bread (WB) were performed. Although feed consumption and body weight increased with WBS, the glycemic index was reduced, suggesting a diabetes-lowering effect, probably due to the presence of dietary fiber and short-chain fatty acids (SCFA). In addition, a mineral absorption test showed that WBS increased magnesium absorption owing to phytate degradation during fermentation. Interestingly, WBS decreased total cholesterol and triglycerides, probably due to the dietary fiber and SCFA in LAB. In addition, the ratio of low- and high-density lipoprotein was decreased in WBS, implying potential risk reduction for cardiovascular disease. An immunomodulatory assay of WBS revealed that pro-inflammatory cytokines TNF-α and IL-6 were decreased, suggesting anti-inflammatory activity. Gluten degradation by fermentation and antioxidation activity of menaquinol/ubiquinol by gut microbiota also supported the anti-inflammatory activity of sourdough bread. Furthermore, some beneficial gut bacteria, including Akkermansia, Bifidobacterium, and Lactobacillus, were increased in WBS. In particular, Akkermansia has been associated with anti-inflammatory properties. Consequently, WBS has beneficial effects on health, including decreased glycemic index and cholesterol, increased mineral availability and absorption, anti-inflammatory properties, and establishment of healthy gut microbiota.
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Affiliation(s)
- Joon-Gi Kwon
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, South Korea
- Center for Food and Bioconvergence, Seoul National University, Seoul, South Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Sung-Hoon Park
- Department of Food and Nutrition, Gangneung-Wonju National University, Gangneung, South Korea
| | - Jeong-Eun Kwak
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, South Korea
- Center for Food and Bioconvergence, Seoul National University, Seoul, South Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Jae Hyoung Cho
- Department of Animal Resource Science, Dankook University, Cheonan, South Korea
| | - Gooyoun Kim
- Research Institute of Food and Biotechnology, SPC Group Co., Seoul, South Korea
| | - Deukbuhm Lee
- Research Institute of Food and Biotechnology, SPC Group Co., Seoul, South Korea
| | - Dong Hyun Kim
- Research Institute of Food and Biotechnology, SPC Group Co., Seoul, South Korea
| | - Hyeun Bum Kim
- Department of Animal Resource Science, Dankook University, Cheonan, South Korea
| | - Ju-Hoon Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, South Korea
- Center for Food and Bioconvergence, Seoul National University, Seoul, South Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
- *Correspondence: Ju-Hoon Lee,
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39
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Antibiotic resistance in the commensal human gut microbiota. Curr Opin Microbiol 2022; 68:102150. [DOI: 10.1016/j.mib.2022.102150] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/19/2022] [Accepted: 03/24/2022] [Indexed: 12/24/2022]
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40
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Kumar R, Kane H, Wang Q, Hibberd A, Jensen HM, Kim HS, Bak SY, Auzanneau I, Bry S, Christensen N, Friedman A, Rasinkangas P, Ouwehand AC, Forssten SD, Hasselwander O. Identification and Characterization of a Novel Species of Genus Akkermansia with Metabolic Health Effects in a Diet-Induced Obesity Mouse Model. Cells 2022; 11:cells11132084. [PMID: 35805168 PMCID: PMC9265676 DOI: 10.3390/cells11132084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/26/2022] [Accepted: 06/29/2022] [Indexed: 12/15/2022] Open
Abstract
Akkermansia muciniphila is a well-known bacterium with the ability to degrade mucin. This metabolic capability is believed to play an important role in the colonization of this bacterium in the gut. In this study, we report the identification and characterization of a novel Akkermansia sp. DSM 33459 isolated from human feces of a healthy donor. Phylogenetic analysis based on the genome-wide average nucleotide identity indicated that the Akkermansia sp. DSM 33459 has only 87.5% similarity with the type strain A. muciniphila ATCC BAA-835. Akkermansia sp. DSM 33459 showed significant differences in its fatty acid profile and carbon utilization as compared to the type strain. The Akkermansia sp. DSM 33459 strain was tested in a preclinical obesity model to determine its effect on metabolic markers. Akkermansia sp. DSM 33459 showed significant improvement in body weight, total fat weight, and resistin and insulin levels. Interestingly, these effects were more pronounced with the live form as compared to a pasteurized form of the strain. The strain showed production of agmatine, suggesting a potential novel mechanism for supporting metabolic and cognitive health. Based on its phenotypic features and phylogenetic position, it is proposed that this isolate represents a novel species in the genus Akkermansia and a promising therapeutic candidate for the management of metabolic diseases.
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Affiliation(s)
- Ritesh Kumar
- Health & Biosciences, International Flavors & Fragrances, Inc. (IFF), Wilmington, DE 19803, USA; (H.K.); (Q.W.); (H.-S.K.); (A.F.)
- Correspondence: ; Tel.: +1-302-379-4738
| | - Helene Kane
- Health & Biosciences, International Flavors & Fragrances, Inc. (IFF), Wilmington, DE 19803, USA; (H.K.); (Q.W.); (H.-S.K.); (A.F.)
| | - Qiong Wang
- Health & Biosciences, International Flavors & Fragrances, Inc. (IFF), Wilmington, DE 19803, USA; (H.K.); (Q.W.); (H.-S.K.); (A.F.)
| | | | - Henrik Max Jensen
- Health & Biosciences, IFF, 8220 Brabrand, Denmark; (H.M.J.); (S.Y.B.); (N.C.)
| | - Hye-Sook Kim
- Health & Biosciences, International Flavors & Fragrances, Inc. (IFF), Wilmington, DE 19803, USA; (H.K.); (Q.W.); (H.-S.K.); (A.F.)
| | - Steffen Yde Bak
- Health & Biosciences, IFF, 8220 Brabrand, Denmark; (H.M.J.); (S.Y.B.); (N.C.)
| | | | - Stéphanie Bry
- Health & Biosciences, IFF, 86270 Dange, France; (I.A.); (S.B.)
| | - Niels Christensen
- Health & Biosciences, IFF, 8220 Brabrand, Denmark; (H.M.J.); (S.Y.B.); (N.C.)
| | - Andrew Friedman
- Health & Biosciences, International Flavors & Fragrances, Inc. (IFF), Wilmington, DE 19803, USA; (H.K.); (Q.W.); (H.-S.K.); (A.F.)
| | - Pia Rasinkangas
- Health & Biosciences, IFF, 02460 Kantvik, Finland; (P.R.); (A.C.O.); (S.D.F.)
| | - Arthur C. Ouwehand
- Health & Biosciences, IFF, 02460 Kantvik, Finland; (P.R.); (A.C.O.); (S.D.F.)
| | - Sofia D. Forssten
- Health & Biosciences, IFF, 02460 Kantvik, Finland; (P.R.); (A.C.O.); (S.D.F.)
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The Untapped Potential of Ginsenosides and American Ginseng Berry in Promoting Mental Health via the Gut-Brain Axis. Nutrients 2022; 14:nu14122523. [PMID: 35745252 PMCID: PMC9227060 DOI: 10.3390/nu14122523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 02/04/2023] Open
Abstract
Despite the popularity of the ginseng (Panax) root in health research and on the market, the ginseng berry’s potential remains relatively unexplored. Implementing ginseng berry cultivations and designing berry-derived products could improve the accessibility to mental health-promoting nutraceuticals. Indeed, the berry could have a higher concentration of neuroprotective and antidepressant compounds than the root, which has already been the subject of research demonstrating its efficacy in the context of neuroprotection and mental health. In this review, data on the berry’s application in supporting mental health via the gut–brain axis is compiled and discussed.
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Huazano-García A, Gastelum-Arellanez A, Vázquez-Martínez J, López MG. Effects of agavins in high fat-high sucrose diet-fed mice: an exploratory study. CYTA - JOURNAL OF FOOD 2022. [DOI: 10.1080/19476337.2022.2082536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Alicia Huazano-García
- Hospital General Dr. Manuel Gea González, Mexico City, Mexico
- Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico City, Mexico
| | - Argel Gastelum-Arellanez
- Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico City, Mexico
- Centro de Innovación Aplicada en Tecnologías Competitivas A.C. (CIATEC AC), León Guanajuato, Mexico
| | - Juan Vázquez-Martínez
- Superior Institute of Technology of Irapuato (ITESI), TecNM, Irapuato Guanajuato, Mexico
| | - Mercedes G. López
- de Estudios Avanzados del IPN, Unidad IrapuatoCentro de Investigación y, Irapuato Guanajuato, Mexico
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Huang Z, Yang W, Wang X, Guo F, Cheng Y, Cao L, Zhu W, Sun Y, Xiong H. Industrially Produced Rice Protein Ameliorates Dextran Sulfate Sodium-Induced Colitis via Protecting the Intestinal Barrier, Mitigating Oxidative Stress, and Regulating Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4952-4965. [PMID: 35412826 DOI: 10.1021/acs.jafc.2c00585] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Inflammatory bowel disease (IBD) poses a threat to health and compromises the immune system and gut microflora. The present study aimed to explore the effects of rice protein (RP) purified from rice dregs (RD) on acute colitis induced by dextran sulfate sodium (DSS) and the underlying mechanisms. Results showed that RP treatment could alleviate the loss of body weight, colon shortening and injury, and the level of disease activity index, repair colonic function (claudin-1, ZO-1 and occludin), regulate inflammatory factors, and restore oxidative balance (malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD), and total antioxidant capability (T-AOC)) in mice. Also, RP treatment could activate the Kelch-like ECH-associating protein 1 (Keap1)-nuclear factor E2-related factor 2 (Nrf2) signaling pathway, mediate the expression of downstream antioxidant protease (NQO-1, HO-1, and Gclc), regulate gut microbiota by enhancing the relative abundance of Akkermansia and increasing the value of F/B, and adjust short-chain fatty acid levels to alleviate DSS-induced colitis in mice. Thus, RP may be an effective therapeutic dietary resource for ulcerative colitis.
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Affiliation(s)
- Zhenghua Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Wenting Yang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Xiaoya Wang
- Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, Jiangxi, P. R. China
| | - Fanghua Guo
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Yibin Cheng
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan 430062, P. R. China
| | - Leipeng Cao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Wenting Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Yong Sun
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
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A Low Glycemic Index Mediterranean Diet Combined with Aerobic Physical Activity Rearranges the Gut Microbiota Signature in NAFLD Patients. Nutrients 2022; 14:nu14091773. [PMID: 35565740 PMCID: PMC9101735 DOI: 10.3390/nu14091773] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease, and its prevalence worldwide is increasing. Several studies support the pathophysiological role of the gut–liver axis, where specific signal pathways are finely tuned by intestinal microbiota both in the onset and progression of NAFLD. In the present study, we investigate the impact of different lifestyle interventions on the gut microbiota composition in 109 NAFLD patients randomly allocated to six lifestyle intervention groups: Low Glycemic Index Mediterranean Diet (LGIMD), aerobic activity program (ATFIS_1), combined activity program (ATFIS_2), LGIMD plus ATFIS_1 or ATFIS2 and Control Diet based on CREA-AN (INRAN). The relative abundances of microbial taxa at all taxonomic levels were explored in all the intervention groups and used to cluster samples based on a statistical approach, relying both on the discriminant analysis of principal components (DAPCs) and on a linear regression model. Our analyses reveal important differences when physical activity and the Mediterranean diet are merged as treatment and allow us to identify the most statistically significant taxa linked with liver protection. These findings agree with the decreased ‘controlled attenuation parameter’ (CAP) detected in the LGIMD-ATFIS_1 group, measured using FibroScan®. In conclusion, our study demonstrates the synergistic effect of lifestyle interventions (diet and/or physical activity programs) on the gut microbiota composition in NAFLD patients.
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Chen J, Wang M, Zhang P, Li H, Qu K, Xu R, Guo N, Zhu H. Cordycepin alleviated metabolic inflammation in Western diet-fed mice by targeting intestinal barrier integrity and intestinal flora. Pharmacol Res 2022; 178:106191. [PMID: 35346845 DOI: 10.1016/j.phrs.2022.106191] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/15/2022] [Accepted: 03/23/2022] [Indexed: 12/12/2022]
Abstract
Metabolic inflammation is a crucial factor in the pathogenesis of obesity and promotes related complications. Accumulating evidence has indicated that regulating intestinal integrity and the gut microbiota may be new treatment strategies for metabolic inflammation and obesity. Cordycepin has been reported to improve obesity, but the mechanism is not yet clear. Here, we showed that cordycepin considerably alleviated systemic inflammation while reducing body weight gain and metabolic disorders in Western diet (WD)-fed mice. Further investigations showed that cordycepin significantly ameliorated WD-induced damage to the intestinal barrier and decreased the leakage of lipopolysaccharide (LPS) into the blood in mice by suppressing intestinal inflammation, oxidative stress damage, and decreasing intestinal epithelial cell apoptosis and pyroptosis. In addition, by using metagenomic sequencing, we found that cordycepin can also regulate the homeostasis of intestinal flora, including selectively increasing the abundance of Akkermansia muciniphila and reducing the production of fecal LPS. Besides, we demonstrated that the intestinal flora partially mediated the beneficial effects of cordycepin on improving intestinal barrier function, and obesity-related symptoms in WD-fed mice by a fecal microbiota transplantation experiment. Hence, our findings provided new insights into the role of cordycepin in improving metabolic inflammation and obesity from the perspective of regulating the intestinal barrier function and intestinal flora, and further provided data support for the utility of cordycepin in the treatment of obesity and its complications.
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Affiliation(s)
- Jiemei Chen
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China
| | - Mingchao Wang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China
| | - Peng Zhang
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China
| | - Hui Li
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China
| | - Kai Qu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China
| | - Ruiming Xu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China
| | - Na Guo
- Experimental Research Center, China Academy of Chinese Medical Sciences, Nan Xiao Street 16, Dong Zhi Men Nei, Dongcheng District, Beijing 100700, China.
| | - Haibo Zhu
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Xian Nong Tan Street 1, Xicheng District, Beijing 100050, China.
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46
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Ghaffari S, Abbasi A, Somi MH, Moaddab SY, Nikniaz L, Kafil HS, Ebrahimzadeh Leylabadlo H. Akkermansia muciniphila: from its critical role in human health to strategies for promoting its abundance in human gut microbiome. Crit Rev Food Sci Nutr 2022; 63:7357-7377. [PMID: 35238258 DOI: 10.1080/10408398.2022.2045894] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Akkermansia muciniphila, a frequent colonizer in the gut mucous layer of individuals, has constantly been recognized as a promising candidate for the next generation of probiotics due to its biological advantages from in vitro and in vivo investigations. This manuscript comprehensively reviewed the features of A. muciniphila in terms of its function in host physiology and frequently utilized nutrition using the published peer-reviewed articles, which should present valuable and critical information to scientists, engineers, and even the general population. A. muciniphila is an important bacterium that shows host physiology. However, its physiological advantages in several clinical settings also have excellent potential to become a probiotic. Consequently, it can be stated that there is a coherent and direct relation between the biological activities of the gut microbiota, intestinal dysbiosis/eubiosis, and the population of A. muciniphila in the gut milieu, which is influenced by various genetical and nutritional factors. Current regulatory barriers, the need for large-scale clinical trials, and the feasibility of production must be removed before A muciniphila can be extensively used as a next-generation probiotic.
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Affiliation(s)
- Sima Ghaffari
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Abbasi
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Somi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Yaghoub Moaddab
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Nikniaz
- Tabriz Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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47
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Depommier C, Everard A, Druart C, Maiter D, Thissen JP, Loumaye A, Hermans MP, Delzenne NM, de Vos WM, Cani PD. Serum metabolite profiling yields insights into health promoting effect of A. muciniphila in human volunteers with a metabolic syndrome. Gut Microbes 2022; 13:1994270. [PMID: 34812127 PMCID: PMC8632301 DOI: 10.1080/19490976.2021.1994270] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [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
Reduction of A. muciniphila relative abundance in the gut microbiota is a widely accepted signature associated with obesity-related metabolic disorders. Using untargeted metabolomics profiling of fasting plasma, our study aimed at identifying metabolic signatures associated with beneficial properties of alive and pasteurized A. muciniphila when administrated to a cohort of insulin-resistant individuals with metabolic syndrome. Our data highlighted either shared or specific alterations in the metabolome according to the form of A. muciniphila administered with respect to a control group. Common responses encompassed modulation of amino acid metabolism, characterized by reduced levels of arginine and alanine, alongside several intermediates of tyrosine, phenylalanine, tryptophan, and glutathione metabolism. The global increase in levels of acylcarnitines together with specific modulation of acetoacetate also suggested induction of ketogenesis through enhanced β-oxidation. Moreover, our data pinpointed some metabolites of interest considering their emergence as substantial compounds pertaining to health and diseases in the more recent literature.
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Affiliation(s)
- Clara Depommier
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Walloon Excellence in Life Sciences and BIOtechnology (Welbio), UCLouvain, Université Catholique De Louvain, Brussels, Belgium
| | - Amandine Everard
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Walloon Excellence in Life Sciences and BIOtechnology (Welbio), UCLouvain, Université Catholique De Louvain, Brussels, Belgium
| | - Céline Druart
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Walloon Excellence in Life Sciences and BIOtechnology (Welbio), UCLouvain, Université Catholique De Louvain, Brussels, Belgium
| | - Dominique Maiter
- Pôle Edin, Institut De Recherches Expérimentales Et Cliniques, UCLouvain, Université Catholique De Louvain, Brussels, Belgium,Division of Endocrinology and Nutrition, Cliniques Universitaires St-Luc, Brussels, Belgium
| | - Jean-Paul Thissen
- Pôle Edin, Institut De Recherches Expérimentales Et Cliniques, UCLouvain, Université Catholique De Louvain, Brussels, Belgium,Division of Endocrinology and Nutrition, Cliniques Universitaires St-Luc, Brussels, Belgium
| | - Audrey Loumaye
- Pôle Edin, Institut De Recherches Expérimentales Et Cliniques, UCLouvain, Université Catholique De Louvain, Brussels, Belgium,Division of Endocrinology and Nutrition, Cliniques Universitaires St-Luc, Brussels, Belgium
| | - Michel P. Hermans
- Pôle Edin, Institut De Recherches Expérimentales Et Cliniques, UCLouvain, Université Catholique De Louvain, Brussels, Belgium,Division of Endocrinology and Nutrition, Cliniques Universitaires St-Luc, Brussels, Belgium
| | - Nathalie M. Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Walloon Excellence in Life Sciences and BIOtechnology (Welbio), UCLouvain, Université Catholique De Louvain, Brussels, Belgium
| | - Willem M. de Vos
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherland,Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Patrice D. Cani
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Walloon Excellence in Life Sciences and BIOtechnology (Welbio), UCLouvain, Université Catholique De Louvain, Brussels, Belgium,CONTACT Patrice D. Cani UCLouvain, Université Catholique De Louvain, Ldri, Metabolism and Nutrition Research Group, Av. E. Mounier, 73 Box B1.73.11, B-1200Brussels, Belgium
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48
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Kaźmierczak-Siedlecka K, Skonieczna-Żydecka K, Hupp T, Duchnowska R, Marek-Trzonkowska N, Połom K. Next-generation probiotics - do they open new therapeutic strategies for cancer patients? Gut Microbes 2022; 14:2035659. [PMID: 35167406 PMCID: PMC8855854 DOI: 10.1080/19490976.2022.2035659] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Gut microbiota and its association with cancer development/treatment has been intensively studied during the past several years. Currently, there is a growing interest toward next-generation probiotics (NGPs) as therapeutic agents that alter gut microbiota and impact on cancer development. In the present review we focus on three emerging NGPs, namely Faecalibacterium prausnitzii, Akkermansia muciniphila, and Bacteroides fragilis as their presence in the digestive tract can have an impact on cancer incidence. These NGPs enhance gastrointestinal immunity, maintain intestinal barrier integrity, produce beneficial metabolites, act against pathogens, improve immunotherapy efficacy, and reduce complications associated with chemotherapy and radiotherapy. Notably, the use of NGPs in cancer patients does not have a long history and, although their safety remains relatively undefined, recently published data has shown that they are non-toxigenic. Notwithstanding, A. muciniphila may promote colitis whereas enterotoxigenic B. fragilis stimulates chronic inflammation and participates in colorectal carcinogenesis. Nevertheless, the majority of B. fragilis strains provide a beneficial effect to the host, are non-toxigenic and considered as the best current NGP candidate. Overall, emerging studies indicate a beneficial role of these NGPs in the prevention of carcinogenesis and open new promising therapeutic options for cancer patients.
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Affiliation(s)
- Karolina Kaźmierczak-Siedlecka
- Department of Surgical Oncology, Medical University of Gdansk, Gdańsk, Poland,CONTACT Karolina Kaźmierczak-Siedlecka Department of Surgical Oncology, Medical University of Gdansk, Ul. Smoluchowskiego 18, 80-214Gdańsk, Poland
| | | | - Theodore Hupp
- International Centre for Cancer Vaccine Science, University of Gdansk, Gdansk, Poland,Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland, UK
| | - Renata Duchnowska
- Department of Oncology, Military Institute of Medicine, Warsaw, Poland
| | - Natalia Marek-Trzonkowska
- International Centre for Cancer Vaccine Science University of Gdańsk, Gdańsk, Poland,Laboratory of Immunoregulation and Cellular Therapies, Department of Family Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Karol Połom
- Department of Surgical Oncology, Medical University of Gdansk, Gdańsk, Poland
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49
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Ye Y, Shi L, Wang P, Yang M, Zhan P, Tian H, Liu J. Water extract of Ferula lehmanni Boiss. prevents high-fat diet-induced overweight and liver injury by modulating the intestinal microbiota in mice. Food Funct 2022; 13:1603-1616. [PMID: 35076647 DOI: 10.1039/d1fo03518e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Obesity, often accompanied by hepatic steatosis, has been associated with an increased risk of health complications such as fatty liver disease and certain cancers. Ferula lehmannii Boiss., a food and medicine homologue, has been used for centuries as a seasoning showing anti-bacterial and anti-oxidant effects on digestive discomfort. In the present study, we sought to investigate whether a short-term oral administration of water extract of Ferula lehmanni Boiss. (WEFL) could prevent high-fat diet (HFD)-induced abnormal weight gain and hepatic steatosis in mice and its underlying mechanisms. WEFL reduced HFD-increased body weight, liver injury markers and inflammatory cytokines (i.e. IL-6 and IL-1β), and inhibited the elevation of AMPKα, SREBP-1c and FAS in HFD. Moreover, WEFL reconstructed the gut microbiota composition by increasing the relative abundances of beneficial bacteria, e.g. Akkermansia spp., while decreasing Desulfovibrio spp. and so on, thereby reversing the detrimental effects of HFD in mice. Removal of the gut microbiota with antibiotics partially eliminated the hepatoprotective effects of WEFL. Notably, WEFL substantially promoted the levels of short-chain fatty acids, especially butyric acid. To clarify the functional components at play in WEFL, we used UPLC-MS/MS to comprehensively detect its substance composition and found it to be a collection of polyphenol-rich compounds. Together, our findings demonstrate that WEFL prevented HFD-induced obesity and liver injury through the hepatic-microbiota axis, and such health-promoting value might be explained by the enriched abundant polyphenols.
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Affiliation(s)
- Yuting Ye
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China.
| | - Lin Shi
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China.
| | - Peng Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China.
| | - Minmin Yang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China.
| | - Ping Zhan
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China.
| | - Honglei Tian
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, China. .,Shaanxi Provincial Research Center of Functional Food Engineering Technology, Xi'an, China
| | - Jianshu Liu
- Shaanxi Provincial Research Center of Functional Food Engineering Technology, Xi'an, China
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50
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Effectiveness of Multistrain Probiotic Formulation on Common Infectious Disease Symptoms and Gut Microbiota Modulation in Flu-Vaccinated Healthy Elderly Subjects. BIOMED RESEARCH INTERNATIONAL 2022; 2022:3860896. [PMID: 35127941 PMCID: PMC8814717 DOI: 10.1155/2022/3860896] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/16/2021] [Indexed: 11/17/2022]
Abstract
The decline of the immune system with aging leads elderly people to be more susceptible to infections, posing high risk for their health. Vaccination is thus important to cope with this risk, even though not always effective. As a strategy to improve protection, adjuvants are used in concomitance with vaccines, however, occasionally producing important side effects. The use of probiotics has been proposed as an alternative to adjuvants due to their efficacy in reducing the risk of common infections through the interactions with the immune system and the gut microbiota. A placebo-controlled, randomized, double-blind, clinical trial was carried out on fifty elderly subjects, vaccinated for influenza, to determine the efficacy of a probiotic mixture in reducing common infection symptoms. The incidence of symptoms was evaluated after 28 days of probiotic intake (namely, T28) and after further 28 days of follow-up (namely, T56). The number of subjects, as well as the number of days with symptoms, was remarkably reduced at T28, and even more at T56 in the probiotic group. Furthermore, the influence of probiotics on immunological parameters was investigated, showing a significant positive improvement of total antioxidant capacity and β-defensin2 levels. Finally, faecal samples collected from participants were used to assess variations in the gut microbiota composition during the study, showing that probiotic intake enhanced the presence of genera related to a healthy status. Therefore, the collected results suggested that the treatment with the selected probiotic mixture could help in reducing common infectious disease symptom incidence through the stimulation of the immune system, improving vaccine efficacy, and modulating the composition of the resident gut microbiota by enhancing beneficial genera.
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