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Krause JL, Haange SB, Schäpe SS, Engelmann B, Rolle-Kampczyk U, Fritz-Wallace K, Wang Z, Jehmlich N, Türkowsky D, Schubert K, Pöppe J, Bote K, Rösler U, Herberth G, von Bergen M. The glyphosate formulation Roundup® LB plus influences the global metabolome of pig gut microbiota in vitro. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 745:140932. [PMID: 32731069 DOI: 10.1016/j.scitotenv.2020.140932] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/06/2020] [Accepted: 07/11/2020] [Indexed: 05/20/2023]
Abstract
Glyphosate is the world's most widely used herbicide, and its potential side effects on the intestinal microbiota of various animals, from honeybees to livestock and humans, are currently under discussion. Pigs are among the most abundant livestock animals worldwide and an impact of glyphosate on their intestinal microbiota function can have serious consequences on their health, not to mention the economic effects. Recent studies that addressed microbiota-disrupting effects focused on microbial taxonomy but lacked functional information. Therefore, we chose an experimental design with a short incubation time in which effects on the community structure are not expected, but functional effects can be detected. We cultivated intestinal microbiota derived from pig colon in chemostats and investigated the acute effect of 228 mg/d glyphosate acid equivalents from Roundup® LB plus, a frequently applied glyphosate formulation. The applied glyphosate concentration resembles a worst-case scenario for an 8-9 week-old pig and relates to the maximum residue levels of glyphosate on animal fodder. The effects were determined on the functional level by metaproteomics, targeted and untargeted meta-metabolomics, while variations in community structure were analyzed by 16S rRNA gene profiling and on the single cell level by microbiota flow cytometry. Roundup® LB plus did not affect the community taxonomy or the enzymatic repertoire of the cultivated microbiota in general or on the expression of the glyphosate target enzyme 5-enolpyruvylshikimate-3-phosphate synthase in detail. On the functional level, targeted metabolite analysis of short chain fatty acids (SCFAs), free amino acids and bile acids did not reveal significant changes, whereas untargeted meta-metabolomics did identify some effects on the functional level. This multi-omics approach provides evidence for subtle metabolic effects of Roundup® LB plus under the conditions applied.
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Affiliation(s)
- Jannike L Krause
- Helmholtz-Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, Germany.
| | - Sven-Bastiaan Haange
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Stephanie S Schäpe
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Beatrice Engelmann
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Ulrike Rolle-Kampczyk
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Katarina Fritz-Wallace
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany; National Center for Tumor Diseases - NCT, Dresden, Germany
| | - Zhipeng Wang
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Nico Jehmlich
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Dominique Türkowsky
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Kristin Schubert
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany
| | - Judith Pöppe
- Institute for Animal Hygiene and Environmental Health, Freie Universität Berlin, Berlin, Germany
| | - Katrin Bote
- Institute for Animal Hygiene and Environmental Health, Freie Universität Berlin, Berlin, Germany
| | - Uwe Rösler
- Institute for Animal Hygiene and Environmental Health, Freie Universität Berlin, Berlin, Germany
| | - Gunda Herberth
- Helmholtz-Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, Germany
| | - Martin von Bergen
- Helmholtz-Centre for Environmental Research - UFZ, Department of Molecular Systems Biology, Leipzig, Germany; Institute of Biochemistry, Faculty of Biosciences, Pharmacy and Psychology, University of Leipzig, Germany.
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Neijat M, Habtewold J, Li S, Jing M, House JD. Effect of dietary n-3 polyunsaturated fatty acids on the composition of cecal microbiome of Lohmann hens. Prostaglandins Leukot Essent Fatty Acids 2020; 162:102182. [PMID: 33038831 DOI: 10.1016/j.plefa.2020.102182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/24/2020] [Accepted: 09/24/2020] [Indexed: 12/26/2022]
Abstract
Supplementation of n-3 fatty acids to poultry diets is widely acknowledged for its role in enhancing poultry products, however, little is known about the compositional responses of gut microbial communities to type and dosage of these supplements. Here, we compared the effects of n-3 polyunsaturated fatty acids (PUFA), supplied as alpha-linolenic acid (ALA) or docosahexaenoic acid (DHA), on the composition of bacterial communities in ceca of laying hens. Corn-soybean basal diets were supplemented with either flaxseed oil (FO, ALA-rich) or marine algal biomass (MA, DHA-rich), and each supplied 0.20 and 0.60% of total n-3 PUFA in the diet. Lohmann LSL-Classic laying hens (n = 10/treatment) were randomly allocated to one of the 4 diets. After 8 weeks of feeding, blood, liver and cecal digesta samples were obtained for plasma glucose, fatty acids, and short chain fatty acids analyses, respectively. The gut bacterial communities were characterized using genomic DNA extracted from cecal contents, whereby the V3-V4 hypervariable region of the 16S rRNA gene was sequenced using the Illumina Miseq® platform. Firmicutes and Bacteroidetes were the predominant phyla in both the FO- and MA-fed groups. The relative abundance of Tenericutes, often associated with immunomodulation, was relatively higher (P<0.0001) in the FO than MA group. Although the relative abundance of Bacteroides was greater for the FO- than the MA-fed group, this genus was negatively correlated (P<0.05) with total n-3 PUFA in the liver at higher dosages of both FO- and MA-fed hens. Higher dose of FO (0.60%) and both dosages of MA (0.20 and 0.60%) substantially enriched several members of Firmicutes (e.g., Faecalibacterium, Clostridium and Ruminococcus) which are known to produce butyrate. Moreover, co-occurrence network analysis revealed that, in the FO 0.60- and MA 0.20-fed hens, Ruminococcaceae was the most influential taxon accounting for about 31% of the network complexity. These findings demonstrate that supplementation of different type and level of n-3 PUFA in hens' diets could enrich microbial communities with potential role in lipid metabolism and health.
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Affiliation(s)
- M Neijat
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - J Habtewold
- Agriculture and Agri-Food Canada (AAFC), Ottawa, Ontario, Canada
| | - S Li
- Department of Animal Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - M Jing
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - J D House
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada; Department of Animal Sciences, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada; Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, Winnipeg, Manitoba, R3T 2E1, Canada; Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Research Centre, Winnipeg, MB, R2H 2A6, Canada.
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12α-Hydroxylated bile acid induces hepatic steatosis with dysbiosis in rats. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158811. [PMID: 32896622 DOI: 10.1016/j.bbalip.2020.158811] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/11/2020] [Accepted: 08/23/2020] [Indexed: 01/06/2023]
Abstract
There is an increasing need to explore the mechanism of the progression of non-alcoholic fatty liver disease. Steroid metabolism is closely linked to hepatic steatosis and steroids are excreted as bile acids (BAs). Here, we demonstrated that feeding WKAH/HkmSlc inbred rats a diet supplemented with cholic acid (CA) at 0.5 g/kg for 13 weeks induced simple steatosis without obesity. Liver triglyceride and cholesterol levels were increased accompanied by mild elevation of aminotransferase activities. There were no signs of inflammation, insulin resistance, oxidative stress, or fibrosis. CA supplementation increased levels of CA and taurocholic acid (TCA) in enterohepatic circulation and deoxycholic acid (DCA) levels in cecum with an increased ratio of 12α-hydroxylated BAs to non-12α-hydroxylated BAs. Analyses of hepatic gene expression revealed no apparent feedback control of BA and cholesterol biosynthesis. CA feeding induced dysbiosis in cecal microbiota with enrichment of DCA producers, which underlines the increased cecal DCA levels. The mechanism of steatosis was increased expression of Srebp1 (positive regulator of liver lipogenesis) through activation of the liver X receptor by increased oxysterols in the CA-fed rats, especially 4β-hydroxycholesterol (4βOH) formed by upregulated expression of hepatic Cyp3a2, responsible for 4βOH formation. Multiple regression analyses identified portal TCA and cecal DCA as positive predictors for liver 4βOH levels. The possible mechanisms linking these predictors and upregulated expression of Cyp3a2 are discussed. Overall, our observations highlight the role of 12α-hydroxylated BAs in triggering liver lipogenesis and allow us to explore the mechanisms of hepatic steatosis onset, focusing on cholesterol and BA metabolism.
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Di Ciaula A, Baj J, Garruti G, Celano G, De Angelis M, Wang HH, Di Palo DM, Bonfrate L, Wang DQH, Portincasa P. Liver Steatosis, Gut-Liver Axis, Microbiome and Environmental Factors. A Never-Ending Bidirectional Cross-Talk. J Clin Med 2020; 9:E2648. [PMID: 32823983 PMCID: PMC7465294 DOI: 10.3390/jcm9082648] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/07/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023] Open
Abstract
The prevalence of non-alcoholic fatty liver disease (NAFLD) is increasing worldwide and parallels comorbidities such as obesity, metabolic syndrome, dyslipidemia, and diabetes. Recent studies describe the presence of NAFLD in non-obese individuals, with mechanisms partially independent from excessive caloric intake. Increasing evidences, in particular, point towards a close interaction between dietary and environmental factors (including food contaminants), gut, blood flow, and liver metabolism, with pathways involving intestinal permeability, the composition of gut microbiota, bacterial products, immunity, local, and systemic inflammation. These factors play a critical role in the maintenance of intestinal, liver, and metabolic homeostasis. An anomalous or imbalanced gut microbial composition may favor an increased intestinal permeability, predisposing to portal translocation of microorganisms, microbial products, and cell wall components. These components form microbial-associated molecular patterns (MAMPs) or pathogen-associated molecular patterns (PAMPs), with potentials to interact in the intestine lamina propria enriched in immune cells, and in the liver at the level of the immune cells, i.e., Kupffer cells and stellate cells. The resulting inflammatory environment ultimately leads to liver fibrosis with potentials to progression towards necrotic and fibrotic changes, cirrhosis. and hepatocellular carcinoma. By contrast, measures able to modulate the composition of gut microbiota and to preserve gut vascular barrier might prevent or reverse NAFLD.
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Affiliation(s)
- Agostino Di Ciaula
- Clinica Medica “A. Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (A.D.C.); (D.M.D.P.); (L.B.)
| | - Jacek Baj
- Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Gabriella Garruti
- Section of Endocrinology, Department of Emergency and Organ Transplantations, University of Bari “Aldo Moro” Medical School, Piazza G. Cesare 11, 70124 Bari, Italy;
| | - Giuseppe Celano
- Dipartimento di Scienze del Suolo, della Pianta e Degli Alimenti, Università degli Studi di Bari Aldo Moro, 70124 Bari, Italy; (G.C.); (M.D.A.)
| | - Maria De Angelis
- Dipartimento di Scienze del Suolo, della Pianta e Degli Alimenti, Università degli Studi di Bari Aldo Moro, 70124 Bari, Italy; (G.C.); (M.D.A.)
| | - Helen H. Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (H.H.W.); (D.Q.-H.W.)
| | - Domenica Maria Di Palo
- Clinica Medica “A. Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (A.D.C.); (D.M.D.P.); (L.B.)
- Dipartimento di Scienze del Suolo, della Pianta e Degli Alimenti, Università degli Studi di Bari Aldo Moro, 70124 Bari, Italy; (G.C.); (M.D.A.)
| | - Leonilde Bonfrate
- Clinica Medica “A. Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (A.D.C.); (D.M.D.P.); (L.B.)
| | - David Q-H Wang
- Department of Medicine and Genetics, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Einstein-Mount Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (H.H.W.); (D.Q.-H.W.)
| | - Piero Portincasa
- Clinica Medica “A. Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, 70124 Bari, Italy; (A.D.C.); (D.M.D.P.); (L.B.)
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Zhu W, Wang S, Dai H, Xuan L, Deng C, Wang T, Zhao Z, Li M, Lu J, Xu Y, Chen Y, Wang W, Bi Y, Xu M, Ning G. Serum total bile acids associate with risk of incident type 2 diabetes and longitudinal changes in glucose-related metabolic traits. J Diabetes 2020; 12:616-625. [PMID: 32220107 DOI: 10.1111/1753-0407.13040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/12/2020] [Accepted: 03/20/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Bile acids have been found to be related to changes in gut microbiota and multiple metabolic disorders, including type 2 diabetes (T2D). We aimed to prospectively investigate associations of serum total bile acids (TBAs) with risk of incident T2D and longitudinal changes in glycemic traits. METHODS A community-based study was conducted at baseline in 2010, including 4968 nondiabetic participants aged ≥40 years followed up for an average of 4.3 years. Incident T2D was defined by using the 1999 WHO criteria based on 75-g oral glucose tolerance tests. Multivariate Cox proportional hazards regression was used to examine the association of serum TBAs with incident T2D. Fasting plasma glucose (FPG), 2-hour postload plasma glucose (2-h PPG), and fasting serum insulin (FSI) were measured at baseline and follow-up. RESULTS During 21 653.7 person-years of follow-up, 605 cases of incident diabetes were identified (incidence rate 2.8%). Comparing to quartile 1 of serum TBAs, quartile 2, 3, and 4 were significantly associated with a 14.2%, 15.0%, and 31.4% higher risk of incident T2D (P = .029). Each one unit of log-TBAs was associated with an increase of 0.034 mmol/L in FPG, 0.111 mmol/L in 2-h PPG, 0.023 in log-FSI, and 0.012 in log-HOMA-IR (homeostasis model assessment of insulin resistance) (all P ≤ .024). The association was attenuated after further adjustment for HOMA-IR. Mediation analysis showed that insulin resistance indicated by HOMA-IR might mediate 28.5% of indirect effect on the association of TBAs with T2D (P = .0004). CONCLUSIONS Baseline serum TBAs were significantly associated with incident T2D and longitudinal changes in glycemic traits. Insulin resistance might partially mediate the association of TBAs and T2D.
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Affiliation(s)
- Wen Zhu
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuangyuan Wang
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huajie Dai
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liping Xuan
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chanjuan Deng
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tiange Wang
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiyun Zhao
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mian Li
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jieli Lu
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Xu
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuhong Chen
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiqing Wang
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yufang Bi
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Xu
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guang Ning
- State Key Laboratory of Medical Genomics, Shanghai National Clinical Research Center for Metabolic Diseases, Collaborative Innovation Center of Systems Biomedicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Nutrition and Gastrointestinal Microbiota, Microbial-Derived Secondary Bile Acids, and Cardiovascular Disease. Curr Atheroscler Rep 2020; 22:47. [PMID: 32681421 DOI: 10.1007/s11883-020-00863-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW The goal is to review the connection between gut microbiota and cardiovascular disease, with specific emphasis on bile acids, and the influence of diet in modulating this relationship. RECENT FINDINGS Bile acids exert a much broader range of biological functions than initially recognized, including regulation of cardiovascular function through direct and indirect mechanisms. There is a bi-directional relationship between gut microbiota modulation of bile acid-signaling properties, and their effects on gut microbiota composition. Evidence, primarily from rodent models and limited human trials, suggest that dietary modulation of the gut microbiome significantly impacts bile acid metabolism and subsequently host physiological response(s). Available evidence suggests that the link between diet, gut microbiota, and CVD risk is potentially mediated via bile acid effects on diverse metabolic pathways. However, further studies are needed to confirm/expand and translate these findings in a clinical setting.
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Wu WK, Ivanova EA, Orekhov AN. Gut microbiome: A possible common therapeutic target for treatment of atherosclerosis and cancer. Semin Cancer Biol 2020; 70:85-97. [PMID: 32610150 DOI: 10.1016/j.semcancer.2020.06.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023]
Abstract
Human gut microbiota is a dynamic and variable system that can change over time and in response to different diets and treatments. There is currently no doubt that gut microbiota can provide interesting therapeutic opportunities, since it can metabolize biologically active molecules, drugs, and their precursors, and control their bioavailability. Moreover, it can produce both beneficial and dangerous metabolites that influence host's health. In this review, we summarize the current knowledge on the involvement of gut microbiota in two chronic human pathologies that represent the greatest challenges of modern medicine: atherosclerosis and cancer. Interesting parallels are observed between the mechanisms and possible treatment approaches of these pathologies. Some of the common effects of therapeutic agents targeting both pathologies, such as anti-inflammatory activity, are partially mediated by the gut microbiota. We will discuss the effects of common drugs (metformin, statins and aspirin) and various nutraceuticals on gut microbiota and outline the pathways of microbial involvement in mediating the pleiotropic beneficial effects of these agents in atherosclerosis and cancer.
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Affiliation(s)
- Wei-Kai Wu
- Department of Internal Medicine, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan
| | | | - Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315, Moscow, Russia; Institute of Human Morphology, 117418, Moscow, Russia.
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Abstract
Abstract
Purpose of Review
We examine recent developments in the treatment of cirrhosis by gut microbiome manipulation specifically focusing on the phase 1 safety and feasibility trials of faecal microbiota transplantation (FMT). We interrogate the published data so far on its feasibility, safety and efficacy.
Recent Findings
A large number of trials have demonstrated the efficacy of FMT in treating recurrent Clostridium difficile infection which is now considered standard of care. In cirrhosis, FMT is still being evaluated and there are a number of clinical trials underway. There are two phase 1 pilot safety studies that have been published with promising findings. However, the importance of rigorously testing donor stool for the presence of multi-drug resistant species has been highlighted and lessons have been learned.
Summary
For those patients with cirrhosis, replacing an unhealthy gut microbiome with a healthy one offers a promising antibiotic-free treatment that may reduce bacterial translocation and endotoxemia.
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Ikeda T, Aida M, Yoshida Y, Matsumoto S, Tanaka M, Nakayama J, Nagao Y, Nakata R, Oki E, Akahoshi T, Okano S, Nomura M, Hashizume M, Maehara Y. Alteration in faecal bile acids, gut microbial composition and diversity after laparoscopic sleeve gastrectomy. Br J Surg 2020; 107:1673-1685. [DOI: 10.1002/bjs.11654] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/02/2020] [Accepted: 04/06/2020] [Indexed: 12/20/2022]
Abstract
Abstract
Background
Laparoscopic sleeve gastrectomy (LSG) is a well established treatment for severe obesity and type 2 diabetes. Although the gut microbiota is linked to the efficacy of LSG, the underlying mechanisms remain elusive. The effect of LSG for morbid obesity on the gut microbiota and bile acids was assessed here.
Methods
Severely obese subjects who were candidates for LSG were included and followed until 6 months after surgery. The composition and abundance of the microbiota and bile acids in faeces were assessed by 16S ribosomal RNA sequencing, quantitative PCR and liquid chromatography–mass spectrometry.
Results
In total, 28 patients with a mean(s.d.) BMI of 44·2(6·6) kg/m2 were enrolled. These patients had achieved excess weight loss of 53·2(19·0) per cent and showed improvement in metabolic diseases by 6 months after LSG, accompanied by an alteration in the faecal microbial community. The increase in α-diversity and abundance of specific taxa, such as Rikenellaceae and Christensenellaceae, was strongly associated with reduced faecal bile acid levels. These changes had a significant positive association with excess weight loss and metabolic alterations. However, the total number of faecal bacteria was lower in patients before (mean(s.d.) 10·26(0·36) log10 cells per g faeces) and after (10·39(0·29) log10 cells per g faeces) operation than in healthy subjects (10·83(0·27) log10 cells per g faeces).
Conclusion
LSG is associated with a reduction in faecal bile acids and greater abundance of specific bacterial taxa and α-diversity that may contribute to the metabolic changes.
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Affiliation(s)
- T Ikeda
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
- Department of Oral Medicine Research Centre, Fukuoka, Japan
| | - M Aida
- Yakult Central Institute, Tokyo, Japan
| | - Y Yoshida
- Yakult Central Institute, Tokyo, Japan
| | | | - M Tanaka
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Fukuoka, Japan
| | - J Nakayama
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Fukuoka, Japan
| | - Y Nagao
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - R Nakata
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - E Oki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Akahoshi
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - S Okano
- Department of Pathology, Fukuoka Dental College, Fukuoka, Japan
| | - M Nomura
- Department of Medicine and Bioregulatory Science, Fukuoka, Japan
| | - M Hashizume
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - Y Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Martynov V, Havryliuk V, Skliar T, Sokolova I. Comparative analysis of the composition of intestinal microbiome in patients with liver diseases. SCIENCERISE: BIOLOGICAL SCIENCE 2020. [DOI: 10.15587/2519-8025.2020.192721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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61
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Li DS, Huang QF, Guan LH, Zhang HZ, Li X, Fu KL, Chen YX, Wan JB, Huang M, Bi HC. Targeted bile acids and gut microbiome profiles reveal the hepato-protective effect of WZ tablet (Schisandra sphenanthera extract) against LCA-induced cholestasis. Chin J Nat Med 2020; 18:211-218. [PMID: 32245591 DOI: 10.1016/s1875-5364(20)30023-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Indexed: 02/09/2023]
Abstract
Cholestasis is caused by the obstacle of bile formation or secretion and can develop into severe liver diseases. We previously reported the ethanol extract of Schisandra sphenanthera (Wuzhi tablet, WZ) can significantly protect against lithocholic acid (LCA)-induced intrahepatic cholestasis in mice, partially due to the activation of PXR pathway and promotion of liver regeneration. However, the effect of WZ on the bile acids profile and gut microbiome in cholestastic mice remain unknown. In this study, the effect of WZ against LCA-induced liver injury was evaluated and its effect on the bile acids metabolome and gut microbiome profiles in cholestastic mice was further investigated. Targeted metabolomics analysis was performed to examine the change of bile acids in the serum, liver, intestine and feces. The change of intestinal flora were detected by the genomics method. Targeted metabolomics analysis revealed that WZ enhanced the excretion of bile acids from serum and liver to intestine and feces. Genomics analysis of gut microbiome showed that WZ can reverse LCA-induced gut microbiome disorder to the normal level. In conclusion, WZ protects against LCA-induced cholestastic liver injury by reversing abnormal bile acids profiles and alteration of gut microbiome.
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Affiliation(s)
- Dong-Shun Li
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Quan-Fei Huang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Li-Huan Guan
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Hui-Zhen Zhang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Xi Li
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Kai-Li Fu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Yi-Xin Chen
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Min Huang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China
| | - Hui-Chang Bi
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510000, China.
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62
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Interactions of dietary fat with the gut microbiota: Evaluation of mechanisms and metabolic consequences. Clin Nutr 2020; 39:994-1018. [DOI: 10.1016/j.clnu.2019.05.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 04/25/2019] [Accepted: 05/01/2019] [Indexed: 12/12/2022]
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63
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Kanemaru Y, Harada N, Shimazu-Kuwahara S, Yamane S, Ikeguchi E, Murata Y, Kiyobayashi S, Hatoko T, Inagaki N. Absence of GIP secretion alleviates age-related obesity and insulin resistance. J Endocrinol 2020; 245:13-20. [PMID: 31977316 PMCID: PMC7040458 DOI: 10.1530/joe-19-0477] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 01/23/2020] [Indexed: 12/25/2022]
Abstract
Glucose-dependent insulinotropic polypeptide (GIP) is an incretin secreted from enteroendocine K cells after nutrient ingestion. Fat strongly induces GIP secretion, and GIP hypersecretion is involved in high-fat diet-induced obesity and insulin resistance. Aging also induces GIP hypersecretion, but its effect on body weight gain and insulin sensitivity remains unclear. In the present study, we investigated the effect of GIP on age-related body weight gain and insulin resistance using GIP-knockout homozygous (GIP-/-) and heterozygous (GIP+/-) mice, which have entirely absent and 50% reduced GIP secretion compared to wild-type (WT) mice, respectively. Under 12% fat-containing normal diet feeding condition, body weight was significantly lower in GIP-/- mice compared to that in WT and GIP+/- mice from 38 weeks of age, while there was no significant difference between WT and GIP+/- mice. Visceral and s.c. fat mass were also significantly lower in GIP-/- mice compared to those in WT and GIP+/- mice. During oral glucose tolerance test, blood glucose levels did not differ among the three groups. Insulin levels were significantly lower in GIP-/- mice than those in WT and GIP+/- mice. During insulin tolerance test, GIP-/- mice showed higher insulin sensitivity than that of WT and GIP+/- mice. Adiponectin mRNA levels were increased and leptin mRNA levels tended to be decreased in adipose tissue of GIP-/- mice. These results demonstrate that GIP is involved in age-related obesity and insulin resistance and that inhibition of GIP secretion alleviates age-related fat mass gain and insulin resistance under carbohydrate-based diet feeding condition.
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Affiliation(s)
- Yoshinori Kanemaru
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Norio Harada
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Satoko Shimazu-Kuwahara
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Preemptive Medicine and Lifestyle Related Disease Research Center, Kyoto University Hospital, Kyoto, Japan
| | - Shunsuke Yamane
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Eri Ikeguchi
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yuki Murata
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sakura Kiyobayashi
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomonobu Hatoko
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nobuya Inagaki
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Correspondence should be addressed to N Inagaki:
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64
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Gong S, Ye T, Wang M, Wang M, Li Y, Ma L, Yang Y, Wang Y, Zhao X, Liu L, Yang M, Chen H, Qian J. Traditional Chinese Medicine Formula Kang Shuai Lao Pian Improves Obesity, Gut Dysbiosis, and Fecal Metabolic Disorders in High-Fat Diet-Fed Mice. Front Pharmacol 2020; 11:297. [PMID: 32269525 PMCID: PMC7109517 DOI: 10.3389/fphar.2020.00297] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/27/2020] [Indexed: 12/19/2022] Open
Abstract
High-fat diet (HFD)-induced obesity is a risk factor for many metabolic disorders including cardiovascular diseases, diabetes, and fatty liver disease. Although there are accumulating evidences supporting the assumption that regulating gut microbiota as well as its metabolic status is able to mitigate obesity, the inner relationship between the obesity-related gut microbiota and the relevant metabolites are not well defined. In current study, we applied a traditional herbal formula Kang Shuai Lao Pian (KSLP) to HFD-fed mice and evaluated its effect against obesity. Emphases were addressed on identifying profiles of gut microbiota and fecal metabolites with the aid of 16S rRNA gene sequencing and non-target fecal metabolomics techniques. We showed that KSLP could improve HFD-induced obesity, glucose tolerance disorder, as well as gut dysbiosis. In the gut, KSLP corrected the increased abundance of Firmicutes and Proteobacteria, increased ratio of Firmicutes/Bacteroidetes, and decreased abundance of Bacteroidetes caused by HFD. KSLP also reversed HFD-induced significant changes in the abundance of certain genus including Intestinimonas, Oscillibacter, Christensenellaceae_R-7_group, Ruminococcaceae_UCG-010, and Aliihoeflea. Pearson correlation analysis indicated that except for Ruminococcaceae_UCG-010, other four genera had positive correlations with obesity. In addition, 22 key fecal metabolites responding to KSLP treatment were identified. Pearson correlation analysis showed that those metabolites are intimately related to KSLP effective genera of Intestinimonas, Oscillibacter, and Christensenellaceae_R-7_group. Our results indicate that KSLP is a promising traditional Chinese medicine (TCM) applicable for individuals with HFD habit. Intestinimonas, Oscillibacter, and Christensenellaceae_R-7_group might be responsible for the regulatory effect of KSLP. Linking of obesity phenotypes with gut microbiota as well as fecal metabolites is therefore a powerful research strategy to reveal the mechanism of obesity and the targets of intervention.
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Affiliation(s)
- Shuqing Gong
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Tingting Ye
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Meixia Wang
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Zhejiang Institute of Microbiology, Hangzhou, China.,NMPA Key Laboratory for Testing and Risk Warning of Pharmaceutical Microbiology, Zhejiang Institute of Microbiology, Hangzhou, China
| | - Mengying Wang
- Chronic Disease Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Yufei Li
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Lina Ma
- School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Yulian Yang
- School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Wang
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Xiaoping Zhao
- College of Preclinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Li Liu
- Technical Center, Chiatai Qingchunbao Pharmaceutical Co. Ltd, Hangzhou, China
| | - Min Yang
- Chronic Disease Research Institute, Department of Nutrition and Food Hygiene, School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Huan Chen
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Zhejiang Institute of Microbiology, Hangzhou, China.,NMPA Key Laboratory for Testing and Risk Warning of Pharmaceutical Microbiology, Zhejiang Institute of Microbiology, Hangzhou, China
| | - Jing Qian
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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65
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Haange SB, Jehmlich N, Krügel U, Hintschich C, Wehrmann D, Hankir M, Seyfried F, Froment J, Hübschmann T, Müller S, Wissenbach DK, Kang K, Buettner C, Panagiotou G, Noll M, Rolle-Kampczyk U, Fenske W, von Bergen M. Gastric bypass surgery in a rat model alters the community structure and functional composition of the intestinal microbiota independently of weight loss. MICROBIOME 2020; 8:13. [PMID: 32033593 PMCID: PMC7007695 DOI: 10.1186/s40168-020-0788-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 01/13/2020] [Indexed: 05/02/2023]
Abstract
BACKGROUND Roux-en-Y gastric bypass (RYGB) surgery is a last-resort treatment to induce substantial and sustained weight loss in cases of severe obesity. This anatomical rearrangement affects the intestinal microbiota, but so far, little information is available on how it interferes with microbial functionality and microbial-host interactions independently of weight loss. METHODS A rat model was employed where the RYGB-surgery cohort is compared to sham-operated controls which were kept at a matched body weight by food restriction. We investigated the microbial taxonomy and functional activity using 16S rRNA amplicon gene sequencing, metaproteomics, and metabolomics on samples collected from theileum, the cecum, and the colon, and separately analysed the lumen and mucus-associated microbiota. RESULTS Altered gut architecture in RYGB increased the relative occurrence of Actinobacteria, especially Bifidobacteriaceae and Proteobacteria, while in general, Firmicutes were decreased although Streptococcaceae and Clostridium perfringens were observed at relative higher abundances independent of weight loss. A decrease of conjugated and secondary bile acids was observed in the RYGB-gut lumen. The arginine biosynthesis pathway in the microbiota was altered, as indicated by the changes in the abundance of upstream metabolites and enzymes, resulting in lower levels of arginine and higher levels of aspartate in the colon after RYGB. CONCLUSION The anatomical rearrangement in RYGB affects microbiota composition and functionality as well as changes in amino acid and bile acid metabolism independently of weight loss. The shift in the taxonomic structure of the microbiota after RYGB may be mediated by the resulting change in the composition of the bile acid pool in the gut and by changes in the composition of nutrients in the gut. Video abstract.
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Affiliation(s)
- Sven-Bastiaan Haange
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
- Institute of Biochemistry, Faculty of Life Sciences, University of Leipzig, Leipzig, Germany
| | - Nico Jehmlich
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Ute Krügel
- Rudolf Boehm Institute of Pharmacology and Toxicology, Medical Faculty, University of Leipzig, Leipzig, Germany
| | - Constantin Hintschich
- Neuroendocrine Regulation of Energy Homeostasis Group, IFB Adiposity Diseases, Leipzig, Germany
| | - Dorothee Wehrmann
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Mohammed Hankir
- Neuroendocrine Regulation of Energy Homeostasis Group, IFB Adiposity Diseases, Leipzig, Germany
- Current address: Department of Experimental Surgery, Wuerzburg University Hospital, Wuerzburg, Germany
| | - Florian Seyfried
- Department of General, Visceral, Vascular and Pediatric Surgery, Wuerzburg University Hospital, Wuerzburg, Germany
| | - Jean Froment
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Thomas Hübschmann
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Susann Müller
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Dirk K. Wissenbach
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
- Current address: Institute of Forensic Medicine, Jena University Hospital, Jena, Germany
| | - Kang Kang
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knoll Institute, Jena, Germany
| | - Christian Buettner
- Institute for Bioanalysis, Faculty of Applied Sciences, Coburg University of Applied Sciences and Arts, Coburg, Germany
| | - Gianni Panagiotou
- Systems Biology and Bioinformatics Group, School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Matthias Noll
- Institute for Bioanalysis, Faculty of Applied Sciences, Coburg University of Applied Sciences and Arts, Coburg, Germany
| | - Ulrike Rolle-Kampczyk
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Wiebke Fenske
- Neuroendocrine Regulation of Energy Homeostasis Group, IFB Adiposity Diseases, Leipzig, Germany
| | - Martin von Bergen
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
- Institute of Biochemistry, Faculty of Life Sciences, University of Leipzig, Leipzig, Germany
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66
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Müller M, Hermes GDA, Canfora EE, Smidt H, Masclee AAM, Zoetendal EG, Blaak EE. Distal colonic transit is linked to gut microbiota diversity and microbial fermentation in humans with slow colonic transit. Am J Physiol Gastrointest Liver Physiol 2020; 318:G361-G369. [PMID: 31869241 DOI: 10.1152/ajpgi.00283.2019] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Longer colonic transit time and hard stools are associated with increased gut microbiota diversity. Here, we investigate to what extent quantitative measures of (segmental) colonic transit time were related to gut microbiota composition, microbial metabolites, and gut-related parameters in a human cross-sectional study. Using radiopaque markers, (segmental) colonic transit time (CTT) was measured in 48 lean/overweight participants with long colonic transit but without constipation. Fecal microbiota composition was determined using 16S rRNA gene amplicon sequencing. Associations between gastrointestinal transit (segmental CTT and stool frequency and consistency), microbiota diversity and composition, microbial metabolites [short-chain fatty acids (SCFA), branched-chain fatty acids, and breath hydrogen], habitual diet, and gut-related host parameters [lipopolysaccharide-binding protein (LBP) and fecal calprotectin] were investigated using univariate and multivariate approaches. Long descending (i.e., distal) colonic transit was associated with increased microbial α-diversity but not with stool consistency. Using unweighted and weighted UniFrac distance, microbiota variation was not related to (segmental) CTT but to demographics, diet, plasma LBP, and fecal calprotectin. Bray-Curtis dissimilarity related only to stool consistency. Rectosigmoid and descending colonic transit were negatively associated with fecal SCFA and plasma acetate, respectively. This study suggests that the distal colon transit may affect not only microbiota diversity but also microbial metabolism.NEW & NOTEWORTHY We extend previous findings showing that long distal colonic transit time influences microbial diversification and fermentation, whereas stool consistency is related to microbiota composition in humans with a long colonic transit. This study puts the importance of the (distal) colonic site in microbiota ecology forward, which should be considered in future therapeutic studies targeting, for instance, short-chain fatty acid production to improve metabolic health.
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Affiliation(s)
- Mattea Müller
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Gerben D A Hermes
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Emanuel E Canfora
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Ad A M Masclee
- Department of Internal Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Erwin G Zoetendal
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Ellen E Blaak
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
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67
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Li X, Wang Y, Xing Y, Xing R, Liu Y, Xu Y. Changes of gut microbiota during silybin-mediated treatment of high-fat diet-induced non-alcoholic fatty liver disease in mice. Hepatol Res 2020; 50:5-14. [PMID: 31661720 DOI: 10.1111/hepr.13444] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/17/2019] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
AIM Gut microbiota are involved in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Silybin (Sil), a naturally occurring hepatoprotective agent, is widely used for treating NAFLD. Whether Sil affects gut microbiota during its actions in treating NAFLD is unknown. We aimed to examine the effect of Sil on intestinal flora dysbiosis induced by a high-fat diet (HFD). METHODS After 10 weeks of feeding normal chow diet or HFD, mice were given a daily gavage for 8 weeks. Cecal contents were harvested for study of short-chain fatty acids, bile acids, and gut microbiota alteration. RESULTS Sil showed protective effects against dietary-induced obesity and liver steatosis; accordingly, gut microbiota composition changed. At the phylum level, compared with the HFD group, mice in the Sil-treated group had significantly lower levels of Firmicutes, and the ratio of Firmicutes-to-Bacteroidetes was lower (P < 0.05). At the genus level, the Sil-treated group have significantly lower levels of Lachnoclostridium, Lachnospiraceae_UCG-006, and Mollicutes_RF9, which were reported to be potentially related to diet-induced obesity, and increased levels of Blautia (P < 0.05), Akkermansia (P < 0.05), and Bacteroides (P < 0.05), which are known to have a beneficial effect on improving NAFLD. Sil also showed an inhibitory effect on well-known beneficial bacteria, such as Alloprevotella and Lactobacillus. Furthermore, the production of acetate, propionate, and butyrate increased, whereas the generation of formate and conversion of cytotoxic secondary metabolites (lithocholic acid and deoxy-cholic acid) decreased in mice treated with Sil. CONCLUSIONS Sil might have beneficial effects on ameliorating NAFLD and mediating HFD-induced change of gut microbiota composition, followed by major changes in secondary metabolites, such as short-chain fatty acids and bile acids.
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Affiliation(s)
- Xiuxia Li
- Eastern Hospital, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Yanping Wang
- Eastern Hospital, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Yilan Xing
- Eastern Hospital, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Renxin Xing
- Eastern Hospital, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Yongsheng Liu
- Eastern Hospital, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Yinsheng Xu
- Eastern Hospital, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
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68
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Mori A, Goto A, Kibe R, Oda H, Kataoka Y, Sako T. Comparison of the effects of four commercially available prescription diet regimens on the fecal microbiome in healthy dogs. J Vet Med Sci 2019; 81:1783-1790. [PMID: 31611485 PMCID: PMC6943313 DOI: 10.1292/jvms.19-0055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The effects of prescription diets on canine intestinal microbiota are unknown. In this
study, we used next generation sequencing to investigate the impact of four commercially
available prescription diet regimens on the fecal microbiome in six healthy dogs. The diet
regimens used were as follows: weight-loss diet, low-fat diet, renal diet, and
anallergenic diet. We found a significantly decreased proportion of phylum Actinobacteria
with the weight-loss diet compared to the anallergenic diet. There were no significant
differences in the proportion of phylum Bacteroidetes between the four diets. The
proportion of phylum Firmicutes was significantly decreased with the weight-loss diet
compared to the anallergenic diet. The proportion of phylum Fusobacteria was significantly
increased with the weight-loss diet compared to the anallergenic diet. There were no
significant differences in the proportion of phylum Proteobacteria after consumption of
the four diets. We therefore demonstrated that commercial prescription diet influences the
fecal microbiome in healthy dogs. These results might be useful when choosing a
prescription diet for targeting a disease.
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Affiliation(s)
- Akihiro Mori
- School of Veterinary Nursing & Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - Ai Goto
- School of Veterinary Nursing & Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - Ryoko Kibe
- School of Veterinary Science, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - Hitomi Oda
- School of Veterinary Nursing & Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - Yasushi Kataoka
- School of Veterinary Science, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
| | - Toshinori Sako
- School of Veterinary Nursing & Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan, Musashino, Tokyo 180-8602, Japan
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69
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Ahmad AF, Dwivedi G, O'Gara F, Caparros-Martin J, Ward NC. The gut microbiome and cardiovascular disease: current knowledge and clinical potential. Am J Physiol Heart Circ Physiol 2019; 317:H923-H938. [PMID: 31469291 DOI: 10.1152/ajpheart.00376.2019] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide. The human body is populated by a diverse community of microbes, dominated by bacteria, but also including viruses and fungi. The largest and most complex of these communities is located in the gastrointestinal system and, with its associated genome, is known as the gut microbiome. Gut microbiome perturbations and related dysbiosis have been implicated in the progression and pathogenesis of CVD, including atherosclerosis, hypertension, and heart failure. Although there have been advances in the characterization and analysis of the gut microbiota and associated bacterial metabolites, the exact mechanisms through which they exert their action are not well understood. This review will focus on the role of the gut microbiome and associated functional components in the development and progression of atherosclerosis. Potential treatments to alter the gut microbiome to prevent or treat atherosclerosis and CVD are also discussed.
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Affiliation(s)
- Adilah F Ahmad
- Medical School, University of Western Australia, Perth, Western Australia, Australia.,Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Perth, Western Australia, Australia
| | - Girish Dwivedi
- Medical School, University of Western Australia, Perth, Western Australia, Australia.,Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Perth, Western Australia, Australia.,Department of Cardiology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Fergal O'Gara
- School of Pharmacy and Biomedical Sciences, Curtin University, Perth, Western Australia, Australia.,Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia.,BIOMERIT Research Centre, School of Microbiology, University College Cork, National University of Ireland, Cork, Ireland.,Telethon Kids Institute, Children's Hospital, Perth, Western Australia, Australia
| | - Jose Caparros-Martin
- School of Pharmacy and Biomedical Sciences, Curtin University, Perth, Western Australia, Australia.,Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
| | - Natalie C Ward
- Medical School, University of Western Australia, Perth, Western Australia, Australia.,School of Public Health, Curtin University, Perth Western Australia, Australia
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70
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Tuteja S, Ferguson JF. Gut Microbiome and Response to Cardiovascular Drugs. CIRCULATION-GENOMIC AND PRECISION MEDICINE 2019; 12:421-429. [PMID: 31462078 DOI: 10.1161/circgen.119.002314] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The gut microbiome is emerging as an important contributor to both cardiovascular disease risk and metabolism of xenobiotics. Alterations in the intestinal microbiota are associated with atherosclerosis, dyslipidemia, hypertension, and heart failure. The microbiota have the ability to metabolize medications, which can results in altered drug pharmacokinetics and pharmacodynamics or formation of toxic metabolites which can interfere with drug response. Early evidence suggests that the gut microbiome modulates response to statins and antihypertensive medications. In this review, we will highlight mechanisms by which the gut microbiome facilitates the biotransformation of drugs and impacts pharmacological efficacy. A better understanding of the complex interactions of the gut microbiome, host factors, and response to medications will be important for the development of novel precision therapeutics for targeting CVD.
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Affiliation(s)
- Sony Tuteja
- Department of Medicine, Division of Translational Medicine and Human Genetics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA (S.T.)
| | - Jane F Ferguson
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN (J.F.F.)
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71
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Das P, Marcišauskas S, Ji B, Nielsen J. Metagenomic analysis of bile salt biotransformation in the human gut microbiome. BMC Genomics 2019; 20:517. [PMID: 31234773 PMCID: PMC6591925 DOI: 10.1186/s12864-019-5899-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/12/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND In the biochemical milieu of human colon, bile acids act as signaling mediators between the host and its gut microbiota. Biotransformation of primary to secondary bile acids have been known to be involved in the immune regulation of human physiology. Several 16S amplicon-based studies with inflammatory bowel disease (IBD) subjects were found to have an association with the level of fecal bile acids. However, a detailed investigation of all the bile salt biotransformation genes in the gut microbiome of healthy and IBD subjects has not been performed. RESULTS Here, we report a comprehensive analysis of the bile salt biotransformation genes and their distribution at the phyla level. Based on the analysis of shotgun metagenomes, we found that the IBD subjects harbored a significantly lower abundance of these genes compared to the healthy controls. Majority of these genes originated from Firmicutes in comparison to other phyla. From metabolomics data, we found that the IBD subjects were measured with a significantly low level of secondary bile acids and high levels of primary bile acids compared to that of the healthy controls. CONCLUSIONS Our bioinformatics-driven approach of identifying bile salt biotransformation genes predicts the bile salt biotransformation potential in the gut microbiota of IBD subjects. The functional level of dysbiosis likely contributes to the variation in the bile acid pool. This study sets the stage to envisage potential solutions to modulate the gut microbiome with the objective to restore the bile acid pool in the gut.
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Affiliation(s)
- Promi Das
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - Simonas Marcišauskas
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - Boyang Ji
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - Jens Nielsen
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2800 Lyngby, Denmark
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72
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Dai Z, Feng S, Liu AB, Wang H, Zeng X, Yang CS. Protective effects of α-galacto-oligosaccharides against a high-fat/western-style diet-induced metabolic abnormalities in mice. Food Funct 2019; 10:3660-3670. [PMID: 31166330 PMCID: PMC6588291 DOI: 10.1039/c9fo00463g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In this study, we investigated the effects of a newly synthesized α-galacto-oligosaccharide mixture (α-GOSg), 0.5% in drinking water, on high-fat/western-style diet (HFWD)-induced metabolic abnormality in mice in a study of 13 weeks. Raffinose family oligosaccharides (RFOs) were included as a comparison. Mice treated with α-GOSg had significantly lower body weight and body fat (p < 0.05), while RFOs were less effective. Both α-GOSg and RFOs significantly reduced serum levels of total cholesterol and low-density lipoprotein cholesterol, alanine aminotransferase and liver lipids. However, only α-GOSg significantly decreased the histopathological score for liver steatosis and downregulated hepatic fatty acid synthesis gene acetyl CoA carboxylase-α. α-GOSg also significantly reduced the content of bile acids in the small intestine and significantly increased the abundance of gut Bifidobacterium and decreased the abundance of Clostridium leptum. These actions are proposed to be key mechanisms contributing to the beneficial health effects of α-GOSg.
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Affiliation(s)
- Zhuqing Dai
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ 08854
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China
- Institute of Argo-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, People’s Republic of China
| | - Simin Feng
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ 08854
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, People’s Republic of China
| | - Anna Ba Liu
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ 08854
| | - Hong Wang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ 08854
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, People’s Republic of China
| | - Chung S. Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ 08854
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73
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Reese AT, Carmody RN. Thinking Outside the Cereal Box: Noncarbohydrate Routes for Dietary Manipulation of the Gut Microbiota. Appl Environ Microbiol 2019; 85:e02246-18. [PMID: 30504210 PMCID: PMC6498178 DOI: 10.1128/aem.02246-18] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The gut microbiota is a diverse and dynamic ecological community that is increasingly recognized to play important roles in host metabolic, immunological, and behavioral functioning. As such, identifying new routes for manipulating the microbiota may provide valuable additional methods for improving host health. Dietary manipulations and prebiotic supplementation are active targets of research for altering the microbiota, but to date, this work has disproportionately focused on carbohydrates. However, many other resources can limit or shape microbial growth. Here, we provide a brief overview of the resource landscape in the mammalian gut and review relevant literature documenting associations between noncarbohydrate nutrients and the composition of the gut microbiota. To spur future work and accelerate translational applications, we propose that researchers take new approaches for studying the effects of diet on gut microbial communities, including more-careful consideration of media for in vitro experiments, measurement of absolute as well as relative abundances, concerted efforts to articulate how physiology may differ between humans and the animal models used in translational studies, and leveraging natural variation for additional insights. Finally, we close with a discussion of how to determine when or where to employ these potential dietary levers for manipulating the microbiota.
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Affiliation(s)
- Aspen T Reese
- Department of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
- Society of Fellows, Harvard University, Cambridge, Massachusetts, USA
| | - Rachel N Carmody
- Department of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
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74
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Parkar SG, Kalsbeek A, Cheeseman JF. Potential Role for the Gut Microbiota in Modulating Host Circadian Rhythms and Metabolic Health. Microorganisms 2019; 7:microorganisms7020041. [PMID: 30709031 PMCID: PMC6406615 DOI: 10.3390/microorganisms7020041] [Citation(s) in RCA: 157] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 01/26/2019] [Accepted: 01/28/2019] [Indexed: 02/07/2023] Open
Abstract
This article reviews the current evidence associating gut microbiota with factors that impact host circadian-metabolic axis, such as light/dark cycles, sleep/wake cycles, diet, and eating patterns. We examine how gut bacteria possess their own daily rhythmicity in terms of composition, their localization to intestinal niches, and functions. We review evidence that gut bacteria modulate host rhythms via microbial metabolites such as butyrate, polyphenolic derivatives, vitamins, and amines. Lifestyle stressors such as altered sleep and eating patterns that may disturb the host circadian system also influence the gut microbiome. The consequent disruptions to microbiota-mediated functions such as decreased conjugation of bile acids or increased production of hydrogen sulfide and the resultant decreased production of butyrate, in turn affect substrate oxidation and energy regulation in the host. Thus, disturbances in microbiome rhythms may at least partially contribute to an increased risk of obesity and metabolic syndrome associated with insufficient sleep and circadian misalignment. Good sleep and a healthy diet appear to be essential for maintaining gut microbial balance. Manipulating daily rhythms of gut microbial abundance and activity may therefore hold promise for a chrononutrition-based approach to consolidate host circadian rhythms and metabolic homeorhesis.
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Affiliation(s)
- Shanthi G Parkar
- The New Zealand Institute for Plant & Food Research Limited, Private Bag 11600, Palmerston North 4442, New Zealand.
| | - Andries Kalsbeek
- Department of Hypothalamic Integration Mechanisms, Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105BA Amsterdam, The Netherlands.
- Department of Endocrinology and Metabolism, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands.
| | - James F Cheeseman
- Department of Anaesthesiology, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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75
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Kang JD, Myers CJ, Harris SC, Kakiyama G, Lee IK, Yun BS, Matsuzaki K, Furukawa M, Min HK, Bajaj JS, Zhou H, Hylemon PB. Bile Acid 7α-Dehydroxylating Gut Bacteria Secrete Antibiotics that Inhibit Clostridium difficile: Role of Secondary Bile Acids. Cell Chem Biol 2019; 26:27-34.e4. [PMID: 30482679 PMCID: PMC6338514 DOI: 10.1016/j.chembiol.2018.10.003] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/28/2018] [Accepted: 09/28/2018] [Indexed: 12/11/2022]
Abstract
Clostridium scindens biotransforms primary bile acids into secondary bile acids, and is correlated with inhibition of Clostridium difficile growth in vivo. The aim of the current study was to determine how C. scindens regulates C. difficile growth in vitro and if these interactions might relate to the regulation of gut microbiome structure in vivo. The bile acid 7α-dehydroxylating gut bacteria, C. scindens and C. sordellii, were found to secrete the tryptophan-derived antibiotics, 1-acetyl-β-carboline and turbomycin A, respectively. Both antibiotics inhibited growth of C. difficile and other gut bacteria. The secondary bile acids, deoxycholic acid and lithocholic acid, but not cholic acid, enhanced the inhibitory activity of these antibiotics. These antibiotics appear to inhibit cell division of C. difficile. The results help explain how endogenously synthesized antibiotics and secondary bile acids may regulate C. difficile growth and the structure of the gut microbiome in health and disease.
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Affiliation(s)
- Jason D Kang
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, USA; McGuire VA Medical Center, Richmond, VA, USA
| | - Christopher J Myers
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Spencer C Harris
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Genta Kakiyama
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA; McGuire VA Medical Center, Richmond, VA, USA
| | - In-Kyoung Lee
- NPChem, Co. and Division of Biotechnology, Chonbuk National University, Jeonju, Jeollabuk-do, Republic of Korea
| | - Bong-Sik Yun
- NPChem, Co. and Division of Biotechnology, Chonbuk National University, Jeonju, Jeollabuk-do, Republic of Korea
| | - Keiichi Matsuzaki
- Laboratory of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, Nihon University, Chiba, Japan
| | - Megumi Furukawa
- Laboratory of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, Nihon University, Chiba, Japan
| | - Hae-Ki Min
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Jasmohan S Bajaj
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA; McGuire VA Medical Center, Richmond, VA, USA
| | - Huiping Zhou
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, USA; McGuire VA Medical Center, Richmond, VA, USA
| | - Phillip B Hylemon
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, USA; McGuire VA Medical Center, Richmond, VA, USA.
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76
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Hamajima H, Tanaka M, Miyagawa M, Sakamoto M, Nakamura T, Yanagita T, Nishimukai M, Mitsutake S, Nakayama J, Nagao K, Kitagaki H. Koji glycosylceramide commonly contained in Japanese traditional fermented foods alters cholesterol metabolism in obese mice. Biosci Biotechnol Biochem 2018; 83:1514-1522. [PMID: 30595103 DOI: 10.1080/09168451.2018.1562877] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Koji, which is manufactured by proliferating non-pathogenic fungus Aspergillus oryzae on steamed rice, is the base for Japanese traditional fermented foods. We have revealed that koji and related Japanese fermented foods and drinks such as amazake, shio-koji, unfiltered sake and miso contain abundant glycosylceramide. Here, we report that feeding of koji glycosylceramide to obese mice alters the cholesterol metabolism . Liver cholesterol was significantly decreased in obese mice fed with koji glycosylceramide. We hypothesized that their liver cholesterol was decreased because it was converted to bile acids. Consistent with the hypothesis, many bile acids were increased in the cecum and feces of obese mice fed with koji glycosylceramide. Expressions of CYP7A1 and ABCG8 involved in the metabolism of cholesterol were significantly increased in the liver of mice fed with koji glycosylceramide. Therefore, it was considered that koji glycosylceramide affects the cholesterol metabolism in obese mice.
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Affiliation(s)
- Hiroshi Hamajima
- a Department of Environmental Science, Faculty of Agriculture , Saga University , Saga city , Japan
| | - Masaru Tanaka
- b Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School , Kyushu University , Fukuoka , Japan
| | - Miyuki Miyagawa
- a Department of Environmental Science, Faculty of Agriculture , Saga University , Saga city , Japan
| | - Mayuko Sakamoto
- a Department of Environmental Science, Faculty of Agriculture , Saga University , Saga city , Japan
| | - Tsuyoshi Nakamura
- c International College of Arts and Sciences , Fukuoka Women's University , Fukuoka , Japan
| | - Teruyoshi Yanagita
- d Faculty of Health and Nutrition Science , Nishikyushu University , Kanzaki , Japan
| | - Megumi Nishimukai
- e Department of Animal Science, Faculty of Agriculture , Iwate University , Morioka , Japan
| | - Susumu Mitsutake
- f Department of Applied Biological Sciences, Faculty of Agriculture , Saga University , Saga city , Japan
| | - Jiro Nakayama
- b Laboratory of Microbial Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School , Kyushu University , Fukuoka , Japan
| | - Koji Nagao
- f Department of Applied Biological Sciences, Faculty of Agriculture , Saga University , Saga city , Japan
| | - Hiroshi Kitagaki
- a Department of Environmental Science, Faculty of Agriculture , Saga University , Saga city , Japan
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77
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Wang J, Dong R, Zheng S. Roles of the inflammasome in the gut‑liver axis (Review). Mol Med Rep 2018; 19:3-14. [PMID: 30483776 PMCID: PMC6297761 DOI: 10.3892/mmr.2018.9679] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 10/23/2018] [Indexed: 02/06/2023] Open
Abstract
The gut-liver axis connects the liver with the intestine via bile acid metabolism. Bile acid dysregulation leads to intestinal dysbiosis, that allows enterogenous pathogenic bacteria, including Gram-negative bacteria and their products lipopolysaccharide (LPS), into the liver via the portal vein, triggering inflammation in the liver. The inflammasome serves as an intracellular pattern recognition receptor that detects pathogens or danger signals and mediates innate immunity in the liver or gut. Specifically, the NACHT, LRR and PYD domains-containing protein (NLRP)6 inflammasome maintains intestinal microbial balance, by promoting interleukin (IL)-18-dependent antimicrobial peptide synthesis and mucus secretion from goblet cells. The NLRP3 inflammasome, in contrast, primarily induces IL-1β and aggravates inflammatory liver injury. Furthermore, the NLRP3 inflammasome affects the epithelial integrity of cholangiocytes by inducing the production of pro-inflammatory cytokines. In addition, bile acids, including deoxycholic acid and chenodeoxycholic acid, are able to activate the NLRP3 inflammasome in macrophages; however, bile acids have the potential to exert the opposite role by interacting with the membrane-bound Takeda G-protein receptor 5 or by activating nuclear farnesoid-X receptor. Therefore, further investigation of the molecular mechanisms underlying the inflammasome, involved in the gut-liver axis, may provide important insights into the identification of a potential therapeutic target for the treatment of liver and gut diseases. The present review discusses the roles of the inflammasome in the gut-liver axis, and the emerging associations between the inflammasome and the intestinal microbiota or the bile acids in the gut-liver axis.
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Affiliation(s)
- Junfeng Wang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai 201102, P.R. China
| | - Rui Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai 201102, P.R. China
| | - Shan Zheng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai 201102, P.R. China
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78
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Zheng Y, Xu M, Heianza Y, Ma W, Wang T, Sun D, Albert CM, Hu FB, Rexrode KM, Manson JE, Qi L. Gallstone disease and increased risk of mortality: Two large prospective studies in US men and women. J Gastroenterol Hepatol 2018; 33:1925-1931. [PMID: 29671893 PMCID: PMC9015210 DOI: 10.1111/jgh.14264] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/04/2018] [Accepted: 04/08/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Gallstone disease has been related to a higher prevalence and incidence of chronic conditions, such as dyslipidemia, obesity, and cardiovascular disease (CVD). However, limited data are available regarding whether gallstone disease is related to mortality. METHODS We examined the relationship of a history of gallstone disease and risk of death, using Cox proportional hazards regression analysis, among 86 030 women from the Nurses' Health Study and 43 949 men from the Health Professionals Follow-up Study. RESULTS During the up-to 32 years of follow-up, 34 011 all-cause deaths were confirmed, of which 8138 were CVD deaths and 12 173 were cancer deaths. For the participants with a history of gallstone disease compared with those without, the hazard ratio of total mortality was 1.16 (95% confidence interval 1.13, 1.20), of CVD mortality 1.11 (1.05, 1.17), of cancer mortality 1.15 (1.09, 1.20), and of other mortality 1.19 (1.14, 1.25) from a pooled-analysis of women and men (all P < 0.001). The multi-adjusted associations between gallstone disease and total mortality persisted among women and men, and among participants with various risk profiles including the different status of body mass index, hormone therapy use, diabetes, hypertension, and hypercholesterolemia (all P for interaction ≥ 0.09). CONCLUSION These data suggest that gallstone disease is associated with a higher risk of total mortality and disease-specific mortality, including CVD and cancer mortality, independent of various traditional risk factors.
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Affiliation(s)
- Yan Zheng
- Ministry of Education Key Laboratory of Contemporary Anthropology and State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China,Departments of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Min Xu
- Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yoriko Heianza
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
| | - Wenjie Ma
- Departments of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Tiange Wang
- Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
| | - Dianjianyi Sun
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
| | - Christine M. Albert
- Division of Preventive Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Frank B. Hu
- Departments of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA,Departments of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA,Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Kathryn M. Rexrode
- Division of Preventive Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - JoAnn E. Manson
- Departments of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA,Division of Preventive Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA,Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Lu Qi
- Departments of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA,Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
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79
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Xiong F, Wu SG, Zhang J, Jakovlić I, Li WX, Zou H, Li M, Wang GT. Dietary Bile Salt Types Influence the Composition of Biliary Bile Acids and Gut Microbiota in Grass Carp. Front Microbiol 2018; 9:2209. [PMID: 30279683 PMCID: PMC6154720 DOI: 10.3389/fmicb.2018.02209] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 08/29/2018] [Indexed: 01/25/2023] Open
Abstract
Lipid metabolism can influence host’s health. There is increasing evidence for interplay between two key regulating factors in lipid metabolism: bile acids (BAs) and gut microbiota. However, very little is known about how types of different diet-supplemented bile salts (BS) influence this interaction in vivo. We sought to explore these relationships using grass carp (Ctenopharyngodon idellus), which often suffers functional disorder of liver and gallbladder. We studied fluctuations of BAs in the gall and changes of microbial communities in the gut in response to seven different diets: five different BS, chelating BS agent, and control. The BS comprised two primary BS [sodium taurochololate (TCAS) and sodium taurochenodeoxycholate (TCDCAS)], sodium tauroursodeoxycholate (TUDCAS), and two secondary BS [sodium taurodeoxycholate (TDCAS) and sodium taurolithocholate (TLCAS)]. Supplementation of primary BS caused a more significant fluctuation of biliary BAs than secondary BS, and TCAS caused a more prominent increase than TCDCAS and TUDCAS. For the gut microbiota, primary BS tended to increase their diversity and induce community succession, secondary BS resulted in a higher firmicutes/bacteroidetes ratio, while TUDCAS had no significant effects. Changes of the gut microbiota triggered by different types of BS caused alteration in BAs biotransformation. Two-obesity-associated families, Lachnospiraceae and Ruminococcaceae were positively correlated with biliary cholic acid (CA), taurochenodeoxycholic acid (TCDCA), and deoxycholic acid (DCA). As both primary and secondary BS resulted in increased synthesis of toxic secondary Bas by the gut microbiota, future studies should pay closer attention to gut microbiota when considering BA treatment.
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Affiliation(s)
- Fan Xiong
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Shan-Gong Wu
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jing Zhang
- University of Chinese Academy of Sciences, Beijing, China
| | - Ivan Jakovlić
- Bio-Transduction Lab, Wuhan Institute of Biotechnology, Wuhan, China
| | - Wen-Xiang Li
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hong Zou
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Ming Li
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Gui-Tang Wang
- Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
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80
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Gutiérrez-Díaz I, Molinero N, Cabrera A, Rodríguez JI, Margolles A, Delgado S, González S. Diet: Cause or Consequence of the Microbial Profile of Cholelithiasis Disease? Nutrients 2018; 10:nu10091307. [PMID: 30223526 PMCID: PMC6163750 DOI: 10.3390/nu10091307] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/05/2018] [Accepted: 09/13/2018] [Indexed: 01/06/2023] Open
Abstract
Recent dietary habits and lifestyle could explain the shaping of the gut microbiota composition and, in consequence, the increasing prevalence of certain pathologies. However, little attention has been paid to the influence of diet on microbiotas, other than the gut microbiota. This is important in cholelithiasis, given that changes in the production of bile acids may affect gallbladder microbial communities. Our aim was to assess the association between regular dietary intake and gallbladder microbial composition. Fourteen adults with cholelithiasis and 14 controls, sex‒age-matched and without gastrointestinal pathology, were included. Diet was assessed through a food frequency questionnaire and quantification of gallbladder microbiota sequences by Illumina 16S rRNA gene-based analysis. The cholelithiasic patients showed greater intake of potatoes and lower consumption of vegetables, non-alcoholic drinks, and sauces, which resulted in a lower intake of energy, lipids, digestible polysaccharides, folate, calcium, magnesium, vitamin C, and some phenolic compounds. Regarding the altered bile microorganisms in cholelithiasic patients, dairy product intake was negatively associated with the proportions of Bacteroidaceae and Bacteroides, and several types of fiber, phenolics, and fatty acids were linked to the abundance of Bacteroidaceae, Chitinophagaceae, Propionibacteraceae, Bacteroides, and Escherichia‒Shigella. These results support a link between diet, biliary microbiota, and cholelithiasis.
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Affiliation(s)
- Isabel Gutiérrez-Díaz
- Department of Functional Biology, University of Oviedo, C/Julián Clavería s/n, 33006 Oviedo, Asturias, Spain.
- Group Diet, Microbiota and Health, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Roma s/n, 33011 Oviedo, Asturias, Spain.
| | - Natalia Molinero
- Department of Microbiology and Biochemistry of Dairy Products, Dairy Research Institute of Asturias⁻Spanish National Research Council (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Asturias, Spain.
| | - Ana Cabrera
- General Surgery Service, Colorectal Surgery Unit, Cabueñes University Hospital, Calle Los Prados 395, 33394 Gijón, Asturias, Spain.
| | - José Ignacio Rodríguez
- General Surgery Service, Colorectal Surgery Unit, Cabueñes University Hospital, Calle Los Prados 395, 33394 Gijón, Asturias, Spain.
| | - Abelardo Margolles
- Department of Microbiology and Biochemistry of Dairy Products, Dairy Research Institute of Asturias⁻Spanish National Research Council (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Asturias, Spain.
| | - Susana Delgado
- Department of Microbiology and Biochemistry of Dairy Products, Dairy Research Institute of Asturias⁻Spanish National Research Council (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Asturias, Spain.
| | - Sonia González
- Department of Functional Biology, University of Oviedo, C/Julián Clavería s/n, 33006 Oviedo, Asturias, Spain.
- Group Diet, Microbiota and Health, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avda. Roma s/n, 33011 Oviedo, Asturias, Spain.
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81
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Schauf S, de la Fuente G, Newbold CJ, Salas-Mani A, Torre C, Abecia L, Castrillo C. Effect of dietary fat to starch content on fecal microbiota composition and activity in dogs1. J Anim Sci 2018; 96:3684-3698. [PMID: 30060077 PMCID: PMC6127775 DOI: 10.1093/jas/sky264] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 07/17/2018] [Indexed: 02/06/2023] Open
Abstract
Dietary fat is known to modulate the hindgut microbiota in rodents; however, there is no clear evidence on the impact of high-fat diets on canine gut microbiota. The purpose of this study was to investigate the effect of feeding of diets differing in the amount of ME provided by fat and starch on the composition and activity of canine fecal microbiota. Twelve adult (3 to 7 yr of age) spayed Beagle dogs received a low-fat-high-starch diet (LF-HS; approximately 23%, 42%, and 25% ME provided by fat, starch, and CP, respectively) and a high-fat-low-starch diet (HF-LS; approximately 43%, 22%, and 25% ME provided by fat, starch, and CP, respectively) following a 2-period crossover arrangement. The higher amount of fat in the HF-LS diet was provided by lard, whereas the higher amount of starch in the LF-HS diet was provided primarily by maize and broken rice. Each period lasted 7 wk and included 4 wk for diet adaptation. Dogs were fed to meet their daily energy requirements (set at 480 kJ ME/kg BW0.75). Fecal samples were collected on weeks 5 and 6 of each period for the analysis of bacterial richness, diversity, and composition [by Ion-Torrent next-generation sequencing], bile acids, ammonia, and VFA. Additional fecal samples were collected from four dogs per diet and period to use as inocula for in vitro fermentation using xylan and pectin as substrates. Gas production was measured at 2, 4, 6, 9, 12, and 24 h of incubation. On week 7, blood samples were collected at 0- and 180-min postfeeding for the analysis of bacterial lipopolysaccharide (LPS). Feeding the HF-LS diet led to a greater (P < 0.05) fecal bile acid concentration compared with the LF-HS diet. Bacterial richness and diversity did not differ between diets (P > 0.10). However, dogs showed a lower relative abundance of Prevotella (P < 0.01), Solobacterium (P < 0.05), and Coprobacillus (P ˂ 0.05) when fed of the HF-LS diet. Fecal ammonia and VFA contents were not affected by diet (P > 0.10). Relative to the LF-HS diet, in vitro fermentation of xylan using feces of dogs fed the HF-LS diet produced less gas at 6 h (P < 0.01) and 9 h (P < 0.05). Blood LPS did not increase at 180-min postfeeding with either diet (P < 0.10). These findings indicate that feeding a HF-LS diet to dogs does not affect bacterial diversity or fermentative end products in feces, but may have a negative impact on Prevotella and xylan fermentation.
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Affiliation(s)
- Sofia Schauf
- Department of Animal Nutrition and Food Science, University of Zaragoza, Zaragoza, Spain
| | - Gabriel de la Fuente
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, Ceredigion, UK
- Departament de Ciència Animal, Universitat de Lleida, Lleida, Spain
| | - Charles J Newbold
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, Ceredigion, UK
- Scotland’s Rural College (SRUC), Edinburgh, UK
| | - Anna Salas-Mani
- Research and Development Department, Affinity Petcare, Barcelona, Spain
| | - Celina Torre
- Research and Development Department, Affinity Petcare, Barcelona, Spain
| | - Leticia Abecia
- CIC bioGUNE, Bizkaia Technology Park, Derio, Bizkaia, Spain
| | - Carlos Castrillo
- Department of Animal Nutrition and Food Science, University of Zaragoza, Zaragoza, Spain
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82
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Kato S, Tobe H, Matsubara H, Sawada M, Sasaki Y, Fukiya S, Morita N, Yokota A. The membrane phospholipid cardiolipin plays a pivotal role in bile acid adaptation by Lactobacillus gasseri JCM1131 T. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1864:403-412. [PMID: 29883797 DOI: 10.1016/j.bbalip.2018.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/17/2018] [Accepted: 06/03/2018] [Indexed: 01/26/2023]
Abstract
Bile acids exhibit strong antimicrobial activity as natural detergents, and are involved in lipid digestion and absorption. We investigated the mechanism of bile acid adaptation in Lactobacillus gasseri JCM1131T. Exposure to sublethal concentrations of cholic acid (CA), a major bile acid in humans, resulted in development of resistance to otherwise-lethal concentrations of CA by this intestinal lactic acid bacterium. As this adaptation was accompanied by decreased cell-membrane damage, we analyzed the membrane lipid composition of L. gasseri. Although there was no difference in the proportions of glycolipids (~70%) and phospholipids (~20%), adaptation resulted in an increased abundance of long-sugar-chain glycolipids and a 100% increase in cardiolipin (CL) content (to ~50% of phospholipids) at the expense of phosphatidylglycerol (PG). In model vesicles, the resistance of PG vesicles to solubilization by CA increased with increasing CL/PG ratio. Deletion of the two putative CL synthase genes, the products of which are responsible for CL synthesis from PG, decreased the CL content of the mutants, but did not affect their ability to adapt to CA. Exposure to CA restored the CL content of the two single-deletion mutants, likely due to the activities of the remaining CL synthase. In contrast, the CL content of the double-deletion mutant was not restored, and the lipid composition was modified such that PG predominated (~45% of total lipids) at the expense of glycolipids. Therefore, CL plays important roles in bile acid resistance and maintenance of the membrane lipid composition in L. gasseri.
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Affiliation(s)
- Shinji Kato
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan.
| | - Haruhi Tobe
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan.
| | - Hiroki Matsubara
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan.
| | - Mariko Sawada
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan.
| | - Yasuko Sasaki
- Laboratory of Fermented Foods, School of Agriculture, Meiji University, Kawasaki, Kanagawa 214-8571, Japan.
| | - Satoru Fukiya
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan.
| | - Naoki Morita
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Hokkaido 062-8517, Japan.
| | - Atsushi Yokota
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan.
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83
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Wang Z, Zhao Y. Gut microbiota derived metabolites in cardiovascular health and disease. Protein Cell 2018; 9:416-431. [PMID: 29725935 PMCID: PMC5960473 DOI: 10.1007/s13238-018-0549-0] [Citation(s) in RCA: 246] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 04/16/2018] [Indexed: 02/08/2023] Open
Abstract
Trillions of microbes inhabit the human gut, not only providing nutrients and energy to the host from the ingested food, but also producing metabolic bioactive signaling molecules to maintain health and elicit disease, such as cardiovascular disease (CVD). CVD is the leading cause of mortality worldwide. In this review, we presented gut microbiota derived metabolites involved in cardiovascular health and disease, including trimethylamine-N-oxide (TMAO), uremic toxins, short chain fatty acids (SCFAs), phytoestrogens, anthocyanins, bile acids and lipopolysaccharide. These gut microbiota derived metabolites play critical roles in maintaining a healthy cardiovascular function, and if dysregulated, potentially causally linked to CVD. A better understanding of the function and dynamics of gut microbiota derived metabolites holds great promise toward mechanistic predicative CVD biomarker discoveries and precise interventions.
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Affiliation(s)
- Zeneng Wang
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA.
| | - Yongzhong Zhao
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA
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84
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Murakami M, Iwamoto J, Honda A, Tsuji T, Tamamushi M, Ueda H, Monma T, Konishi N, Yara S, Hirayama T, Miyazaki T, Saito Y, Ikegami T, Matsuzaki Y. Detection of Gut Dysbiosis due to Reduced Clostridium Subcluster XIVa Using the Fecal or Serum Bile Acid Profile. Inflamm Bowel Dis 2018; 24:1035-1044. [PMID: 29688473 DOI: 10.1093/ibd/izy022] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Dysbiosis, especially a reduced Clostridium subcluster XIVa (XIVa), has been reported in several gastrointestinal diseases. Since XIVa is thought to be the main bacterial cluster that metabolizes bile acids (BAs) in the human intestine, we hypothesized that the BA profile in feces, and possibly in serum, could be a convenient biomarker for intestinal XIVa activity. METHODS First, blood and feces were collected from 26 healthy controls and 20 patients with gastrointestinal diseases, and the relationships among fecal microbiomes and fecal and serum BA compositions were studied. Second, serum BA compositions of 30 healthy controls and the remission and exacerbation states of 14 Crohn's disease (CD) and 12 ulcerative colitis (UC) patients were compared. Fecal microbiomes were analyzed by terminal restriction fragment length polymorphism analysis, and BA compositions were quantified by HPLC-MS/MS. RESULTS The highest positive correlation was observed between the fecal XIVa proportion and fecal unconjugated deoxycholic acid (DCA)/(DCA+unconjugated cholic acid [CA]) (r = 0.77, P < 0.0001) or serum DCA/(DCA+CA) (r = 0.52, P < 0.001). Diurnal variation in serum XIVa candidate markers also showed that DCA/(DCA+CA) was most stable and not affected by the contraction of the gallbladder. Serum DCA/(DCA+CA) was not significantly different between remission and exacerbation states in either CD or UC patients, but was significantly reduced in those in the remission state of CD and the remission and exacerbation states of UC compared with healthy controls (P < 0.05). CONCLUSIONS Decreased XIVa exhibits a strong correlation with reduced intestinal BA metabolism. Fecal and serum DCA/(DCA+CA) could be useful surrogate markers for the intestinal proportion of XIVa.
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Affiliation(s)
- Masashi Murakami
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Junichi Iwamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Akira Honda
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Takeshi Tsuji
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Makoto Tamamushi
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Hajime Ueda
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Tadakuni Monma
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Naoki Konishi
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Shoichiro Yara
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Takeshi Hirayama
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Teruo Miyazaki
- Joint Research Center, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Yoshifumi Saito
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Tadashi Ikegami
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Yasushi Matsuzaki
- Department of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
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85
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Chu H, Williams B, Schnabl B. Gut microbiota, fatty liver disease, and hepatocellular carcinoma. LIVER RESEARCH 2018; 2:43-51. [PMID: 30416839 PMCID: PMC6223644 DOI: 10.1016/j.livres.2017.11.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Intestinal bacteria contribute to the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Recently developed microbial profiling techniques are beginning to shed light on the nature of the changes in the gut microbiota that accompany NAFLD and non-alcoholic steatohepatitis (NASH). In this review, we summarize the role of gut microbiota in the development of NAFLD, NASH, and hepatocellular carcinoma (HCC). We highlight the mechanisms by which gut microbiota contribute to NAFLD/NASH, including through alterations in gut epithelial permeability, choline metabolism, endogenous alcohol production, release of inflammatory cytokines, regulation of hepatic Toll-like receptor (TLR), and bile acid metabolism. In addition, we analyze possible mechanisms for enhanced hepatic carcinogenesis, including alterations in bile acid metabolism, release of inflammatory cytokines, and expression of TLR-4. Finally, we describe therapeutic approaches for NAFLD/NASH and preventive strategies for HCC involving modulation of the intestinal microbiota or affected host pathways. Although recent studies have provided useful information, large-scale prospective studies are required to better characterize the intestinal microbiota and metabolome, in order to demonstrate a causative role for changes in the gut microbiota in the etiology of NAFLD/NASH, to identify new therapeutic strategies for NAFLD/NASH, and to develop more effective methods of preventing HCC.
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Affiliation(s)
- Huikuan Chu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Brandon Williams
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, CA, USA,epartment of Medicine, VA San Diego Healthcare System, San Diego, CA, USA,Corresponding author. Department of Medicine, University of California San Diego, Biomedical Research Facility 2 (BRF2), La Jolla, CA, USA. (B. Schnabl)
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86
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Zhou XL, Yan BB, Xiao Y, Zhou YM, Liu TY. Tartary buckwheat protein prevented dyslipidemia in high-fat diet-fed mice associated with gut microbiota changes. Food Chem Toxicol 2018; 119:296-301. [PMID: 29481895 DOI: 10.1016/j.fct.2018.02.052] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 02/20/2018] [Accepted: 02/22/2018] [Indexed: 01/09/2023]
Abstract
As one of low-digestible proteins, tartary buckwheat protein (BWP) revealed a cholesterol-lowering activity. The relationship between the prevention of BWP on dyslipidemia and changes in the numbers of gut microbiota was investigated. The male C57BL/6 mice were separately fed on normal diet, high-fat diet (HFD) with casein, and HFD with BWP extract for 6 weeks. Quantitative PCR assay was applied to quantify the microbiota composition in feces. The levels of plasma total cholesterol (TC) and triglyceride (TG) in the mice fed on HFD with BWP were significantly lower than those on HFD with casein. BWP promoted the growth of Lactobacillus, Bifidobacterium and Enterococcus and inhibited the growth of Escherichia coli in HFD-fed mice. Moreover, Bifidobacterium population was closely related to contents of plasma lipids. Further, BWP significantly decreased the levels of plasma inflammation factors as induced by HFD, including lipopolysaccharide, tumor necrosis factor α and interleukin 6. BWP significantly increased the excretion of total bile acids and short-chain fatty acids in feces. In conlusion, BWP benefited cholesterol metabolism, which could be attributed to regulating composition of gut microbiota.
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Affiliation(s)
- Xiao-Li Zhou
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd, Shanghai 200436, China; School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Bei-Bei Yan
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Ying Xiao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China.
| | - Yi-Ming Zhou
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd, Shanghai 200436, China; School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Tai-Yi Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
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87
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Zhang Y, Kang C, Wang XL, Zhou M, Chen MT, Zhu XH, Liu K, Wang B, Zhang QY, Zhu JD, Mi MT. Dietary Factors Modulate Colonic Tumorigenesis Through the Interaction of Gut Microbiota and Host Chloride Channels. Mol Nutr Food Res 2018; 62. [DOI: 10.1002/mnfr.201700554] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/04/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Yong Zhang
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Chao Kang
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Xiao-lan Wang
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Min Zhou
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Meng-ting Chen
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Xiao-hui Zhu
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Kai Liu
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Bin Wang
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Qian-yong Zhang
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Jun-dong Zhu
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
| | - Man-tian Mi
- Research center for Nutrition and Food safety; Institute of Military Preventive Medicine; Third Military Medical University; Chongqing Key Laboratory of Nutrition and Food safety; Chongqing Medical Nutrition Research Center; Chongqing P.R. China
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88
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Prieto I, Hidalgo M, Segarra AB, Martínez-Rodríguez AM, Cobo A, Ramírez M, Abriouel H, Gálvez A, Martínez-Cañamero M. Influence of a diet enriched with virgin olive oil or butter on mouse gut microbiota and its correlation to physiological and biochemical parameters related to metabolic syndrome. PLoS One 2018; 13:e0190368. [PMID: 29293629 PMCID: PMC5749780 DOI: 10.1371/journal.pone.0190368] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 12/13/2017] [Indexed: 12/22/2022] Open
Abstract
The type of fat in the diet determinates the characteristics of gut microbiota, exerting a major role in the development of metabolic syndrome. We hypothesize that a diet enriched with extra virgin olive oil (EVOO) has a distinctive effect on the intestinal microbiome in comparison with an enriched butter diet (BT) and this effect is related to the physiological benefits exerted by EVOO. Swiss Webster mice were fed standard (SD) or two high fat diets enriched with EVOO or butter. Hormonal, physiological and metabolic parameters were evaluated. At the end of the feeding period, DNA was extracted from faeces and the 16S rRNA genes were pyrosequenced. Among the main significant differences found, BT triggered the highest values of systolic blood pressure, correlating positively with the percentage of Desulfovibrio sequences in faeces, which in turn showed significantly higher values in BT than in EVOO. EVOO had the lowest values of plasmatic insulin, correlating inversely with Desulfovibrio, and had the lowest plasmatic values of leptin which correlated inversely with Sutterellaceae, Marispirillum and Mucilaginibacter dageonensis, the three showing significantly higher percentages in EVOO. The lowest total cholesterol levels in plasma were detected in SD, correlating positively with Prevotella and Fusicatenibacter, both taxa with significantly greater presence in SD. These results may be indicative of a link between specific diets, certain physiological parameters and the prevalence of some taxa, supporting the possibility that in some of the proposed effects of virgin olive oil the modulation of intestinal microbiota could be involved.
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Affiliation(s)
- Isabel Prieto
- Área de Fisiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Marina Hidalgo
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Ana Belén Segarra
- Área de Fisiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | | | - Antonio Cobo
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Manuel Ramírez
- Área de Fisiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Hikmate Abriouel
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
| | - Antonio Gálvez
- Área de Microbiología, Departamento de Ciencias de la Salud, Universidad de Jaén, Jaén, Spain
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89
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Ikegami T, Honda A. Reciprocal interactions between bile acids and gut microbiota in human liver diseases. Hepatol Res 2018; 48:15-27. [PMID: 29150974 DOI: 10.1111/hepr.13001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/04/2017] [Accepted: 11/06/2017] [Indexed: 02/08/2023]
Abstract
The gut microbiota (GM) play a central role in their host's metabolism of bile acids (BAs) by regulating deconjugation, dehydroxylation, dehydrogenation, and epimerization reactions to generate unconjugated free BAs and secondary BAs. These BAs generated by the GM are potent signaling molecules that interact with BA receptors, such as the farnesoid X receptor and Takeda G-protein-coupled receptor 5. Each BA has a differential affinity to these receptors; therefore, alterations in BA composition by GM could modify the intensity of receptor signaling. Bile acids also act as antimicrobial agents by damaging bacterial membranes and as detergents by altering intracellular macromolecular structures. Therefore, BAs and the GM reciprocally control each other's compositions. In this review, we discuss the latest findings on the mutual effects of BAs and GM on each other; we also describe their roles in the pathophysiology of liver disease progression and potential therapeutic applications of targeting this cross-talk.
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Affiliation(s)
- Tadashi Ikegami
- Division of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | - Akira Honda
- Division of Gastroenterology and Hepatology, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan.,Joint Research Center, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
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90
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Horáčková Š, Plocková M, Demnerová K. Importance of microbial defence systems to bile salts and mechanisms of serum cholesterol reduction. Biotechnol Adv 2017; 36:682-690. [PMID: 29248683 DOI: 10.1016/j.biotechadv.2017.12.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/30/2017] [Accepted: 12/12/2017] [Indexed: 12/14/2022]
Abstract
An important feature of the intestinal microbiota, particularly in the case of administered probiotic microorganisms, is their resistance to conditions in the gastrointestinal tract, particularly tolerance to and growth in the presence of bile salts. Bacteria can use several defence mechanisms against bile, including special transport mechanisms, the synthesis of various types of surface proteins and fatty acids or the production of exopolysaccharides. The ability to enzymatically hydrolyse bile salts occurs in a variety of bacteria. Choloylglycine hydrolase (EC 3.5.1.24), a bile salt hydrolase, is a constitutive intracellular enzyme responsible for the hydrolysis of an amide bond between glycine or taurine and the steroid nucleus of bile acids. Its presence was demonstrated in specific microorganisms from several bacterial genera (Lactobacillus spp., Bifidobacterium spp., Clostridium spp., Bacteroides spp.). Occurrence and gene arrangement encoding this enzyme are highly variable in probiotic microorganisms. Bile salt hydrolase activity may provide the possibility to use the released amino acids by bacteria as sources of carbon and nitrogen, to facilitate detoxification of bile or to support the incorporation of cholesterol into the cell wall. Deconjugation of bile salts may be directly related to a lowering of serum cholesterol levels, from which conjugated bile salts are synthesized de novo. Furthermore, the ability of microorganisms to assimilate or to bind ingested cholesterol to the cell wall or to eliminate it by co-precipitation with released cholic acid was also documented. Some intestinal microflora produce cholesterol reductase that catalyses the conversion of cholesterol to insoluble coprostanol, which is subsequently excreted in faeces, thereby also reducing the amount of exogenous cholesterol.
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Affiliation(s)
- Šárka Horáčková
- Department of Dairy, Fat and Cosmetics, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic.
| | - Milada Plocková
- Department of Dairy, Fat and Cosmetics, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic.
| | - Kateřina Demnerová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic.
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91
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Costantini L, Molinari R, Farinon B, Merendino N. Impact of Omega-3 Fatty Acids on the Gut Microbiota. Int J Mol Sci 2017; 18:ijms18122645. [PMID: 29215589 PMCID: PMC5751248 DOI: 10.3390/ijms18122645] [Citation(s) in RCA: 396] [Impact Index Per Article: 56.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/14/2017] [Accepted: 12/01/2017] [Indexed: 12/12/2022] Open
Abstract
Long-term dietary habits play a crucial role in creating a host-specific gut microbiota community in humans. Despite the many publications about the effects of carbohydrates (prebiotic fibers), the impact of dietary fats, such as omega-3 polyunsaturated fatty acids (PUFAs), on the gut microbiota is less well defined. The few studies completed in adults showed some common changes in the gut microbiota after omega-3 PUFA supplementation. In particular, a decrease in Faecalibacterium, often associated with an increase in the Bacteroidetes and butyrate-producing bacteria belonging to the Lachnospiraceae family, has been observed. Coincidentally, a dysbiosis of these taxa is found in patients with inflammatory bowel disease. Omega-3 PUFAs can exert a positive action by reverting the microbiota composition in these diseases, and increase the production of anti-inflammatory compounds, like short-chain fatty acids. In addition, accumulating evidence in animal model studies indicates that the interplay between gut microbiota, omega-3 fatty acids, and immunity helps to maintain the intestinal wall integrity and interacts with host immune cells. Finally, human and animal studies have highlighted the ability of omega-3 PUFAs to influence the gut–brain axis, acting through gut microbiota composition. From these findings, the importance of the omega-3 connection to the microbiota emerges, encouraging further studies.
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Affiliation(s)
- Lara Costantini
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Romina Molinari
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Barbara Farinon
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Nicolò Merendino
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
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92
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Di Ciaula A, Garruti G, Lunardi Baccetto R, Molina-Molina E, Bonfrate L, Wang DQH, Portincasa P. Bile Acid Physiology. Ann Hepatol 2017; 16:s4-s14. [PMID: 29080336 DOI: 10.5604/01.3001.0010.5493] [Citation(s) in RCA: 273] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 09/06/2017] [Indexed: 02/05/2023]
Abstract
The primary bile acids (BAs) are synthetized from colesterol in the liver, conjugated to glycine or taurine to increase their solubility, secreted into bile, concentrated in the gallbladder during fasting, and expelled in the intestine in response to dietary fat, as well as bio-transformed in the colon to the secondary BAs by the gut microbiota, reabsorbed in the ileum and colon back to the liver, and minimally lost in the feces. BAs in the intestine not only regulate the digestion and absorption of cholesterol, triglycerides, and fat-soluble vitamins, but also play a key role as signaling molecules in modulating epithelial cell proliferation, gene expression, and lipid and glucose metabolism by activating farnesoid X receptor (FXR) and G-protein-coupled bile acid receptor-1 (GPBAR-1, also known as TGR5) in the liver, intestine, muscle and brown adipose tissue. Recent studies have revealed the metabolic pathways of FXR and GPBAR-1 involved in the biosynthesis and enterohepatic circulation of BAs and their functions as signaling molecules on lipid and glucose metabolism.
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Affiliation(s)
| | - Gabriella Garruti
- Department of Emergency and Organ Transplants, Unit of Endocrinology, University of Bari Medical School, Bari, Italy
| | - Raquel Lunardi Baccetto
- Clinica Medica "A. Murri", Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, Bari, Italy
| | - Emilio Molina-Molina
- Clinica Medica "A. Murri", Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, Bari, Italy
| | - Leonilde Bonfrate
- Clinica Medica "A. Murri", Department of Biomedical Sciences & Human Oncology, University of Bari Aldo Moro Medical School, Bari, Italy
| | - David Q-H Wang
- Department of Medicine, Division of Gastroenterology and Liver Diseases, Marion Bessin Liver Research Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Piero Portincasa
- Clinica Medica "A. Murri", Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, Bari, Italy
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93
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Diet-induced obesity and weight loss alter bile acid concentrations and bile acid-sensitive gene expression in insulin target tissues of C57BL/6J mice. Nutr Res 2017; 46:11-21. [PMID: 29173647 DOI: 10.1016/j.nutres.2017.07.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 06/13/2017] [Accepted: 07/20/2017] [Indexed: 12/31/2022]
Abstract
Bile acids (BAs) influence the metabolism of glucose, lipids, and energy expenditure. We hypothesized that BA concentrations and related gene expression would be altered in lean (low-fat diet fed; LFD) vs diet-induced obese (high-fat diet fed; HFD) groups of mice and that some detected changes would remain after weight loss in an HFD group switched to the LFD (SW). Taurine conjugates dominated the bile acid composition of the liver, epididymal white adipose tissue (eWAT), and hypothalamus, with the latter having lower levels (~95%, ~95%, and ~80%, respectively; P<.05). Plasma conjugated bile acids were elevated in the HFD relative to the LFD and SW animals. Total hepatic BA concentrations decreased in obese mice fed HFD, and levels returned to preobese levels in the SW group. Subtle changes in unconjugated bile acids were detected in the eWAT, hypothalamus, and muscle. Liver expression of a variety of enzymes involved in BA synthesis (eg, Cyp27a1, Acox2), BA transport (eg, Slc22a8), and BA-sensitive receptors (Fxr, Tgr5) were unchanged by HFD feeding but decreased with SW. Other hepatic enzymes were induced in the SW group (eg, Amacr and Bal). In eWAT, Cyp27a1 and Acox2 also declined in the SW group, whereas the HFD group showed reduced expression of BA transporters (eg, Abcc3), and changes in Fxr and Tgr5 were unclear. Therefore, although most detectable changes in BA metabolism associated with diet-induced obesity are reversed by diet-induced weight loss, some effects on BA composition, concentrations, and gene expression can persist after weight loss.
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94
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Isolation of six novel 7-oxo- or urso-type secondary bile acid-producing bacteria from rat cecal contents. J Biosci Bioeng 2017; 124:514-522. [PMID: 28751127 DOI: 10.1016/j.jbiosc.2017.06.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/17/2017] [Accepted: 06/05/2017] [Indexed: 01/01/2023]
Abstract
Understanding the dynamics of secondary bile acid (SBA) formation in the gut by SBA-producing bacteria is important for host health, as SBAs have been shown to affect host pathophysiology and gut microbiota composition. However, our knowledge of SBA producers is limited in light of the diversity of gut microbes. Here, we isolated six novel SBA-producing bacteria from rat cecal contents, all of which were members of known species of gut microbes. Anaerostipes caccae D10, Bacteroides nordii C5, Clostridioides difficile D7, and Clostridium cadaveris G11 were capable of oxidizing cholic acid and chenodeoxycholic acid into 7-oxo-derivatives with varying yields. B. nordii C5 and its type strain JCM 12987T had the highest molar yield, ∼90%. Clostridium disporicum F4 and Clostridium subterminale C4 epimerized cholic acid into ursocholic acid with yields of ∼85%; the corresponding type strains lacked epimerization activity. Furthermore, although not novel as an SBA producer, Clostridium scindens G10 that produced deoxycholic acid from cholic acid was isolated for the first time from rodents. These findings will contribute to elucidation of SBA formation in the gut.
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95
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Long SL, Gahan CGM, Joyce SA. Interactions between gut bacteria and bile in health and disease. Mol Aspects Med 2017; 56:54-65. [PMID: 28602676 DOI: 10.1016/j.mam.2017.06.002] [Citation(s) in RCA: 307] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/26/2017] [Accepted: 06/07/2017] [Indexed: 01/18/2023]
Abstract
Bile acids are synthesized from cholesterol in the liver and released into the intestine to aid the digestion of dietary lipids. The host enzymes that contribute to bile acid synthesis in the liver and the regulatory pathways that influence the composition of the total bile acid pool in the host have been well established. In addition, the gut microbiota provides unique contributions to the diversity of bile acids in the bile acid pool. Gut microbial enzymes contribute significantly to bile acid metabolism through deconjugation and dehydroxylation reactions to generate unconjugated bile acids and secondary bile acids. These microbial enzymes (which include bile salt hydrolase (BSH) and bile acid-inducible (BAI) enzymes) are essential for bile acid homeostasis in the host and represent a vital contribution of the gut microbiome to host health. Perturbation of the gut microbiota in disease states may therefore significantly influence bile acid signatures in the host, especially in the context of gastrointestinal or systemic disease. Given that bile acids are ligands for host cell receptors (including the FXR, TGR5 and Vitamin D Receptor) alterations to microbial enzymes and associated changes to bile acid signatures have significant consequences for the host. In this review we examine the contribution of microbial enzymes to the process of bile acid metabolism in the host and discuss the implications for microbe-host signalling in the context of C. difficile infection, inflammatory bowel disease and other disease states.
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Affiliation(s)
- Sarah L Long
- APC Microbiome Institute, University College Cork, Cork, Ireland; School of Microbiology, University College Cork, Cork, Ireland
| | - Cormac G M Gahan
- APC Microbiome Institute, University College Cork, Cork, Ireland; School of Microbiology, University College Cork, Cork, Ireland; School of Pharmacy, University College Cork, Cork, Ireland.
| | - Susan A Joyce
- APC Microbiome Institute, University College Cork, Cork, Ireland; School of Biochemistry and Cell Biology, University College Cork, Cork, Ireland
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96
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Soy compared with milk protein in a Western diet changes fecal microbiota and decreases hepatic steatosis in obese OLETF rats. J Nutr Biochem 2017; 46:125-136. [PMID: 28605664 DOI: 10.1016/j.jnutbio.2017.05.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 04/10/2017] [Accepted: 05/16/2017] [Indexed: 12/17/2022]
Abstract
Soy protein is effective at preventing hepatic steatosis; however, the mechanisms are poorly understood. We tested the hypothesis that soy vs. dairy protein-based diet would alter microbiota and attenuate hepatic steatosis in hyperphagic Otsuka Long-Evans Tokushima fatty (OLETF) rats. Male OLETF rats were randomized to "Western" diets containing milk protein isolate (MPI), soy protein isolate (SPI) or 50:50 MPI/SPI (MS) (n=9-10/group; 21% kcal protein) for 16 weeks. SPI attenuated (P<.05) fat mass and percent fat by ~10% compared with MS, but not compared with MPI. Serum thiobarbituric acid reactive substance and total and low-density lipoprotein cholesterol concentrations were lower (P<.05) with dietary SPI vs. MPI and MS. Histological hepatic steatosis was lower (P<.05) in SPI compared with MPI or MS. Lipidomic analyses revealed reductions (P<.05) in hepatic diacylglycerols but not triacylglycerols in SPI compared with MPI, which was associated with lower hepatic de novo lipogenesis (ACC, FAS and SCD-1 protein content, and hepatic 16:1 n-7 and 18:1 n-7 PUFA concentrations) (P<.05) compared with MPI and MS; however, MPI displayed elevated hepatic mitochondrial function compared with SPI and MS. Fecal bacterial 16S rRNA analysis revealed SPI-intake elicited increases (P<.05) in Lactobacillus and decreases (P<.05) in Blautia and Lachnospiraceae suggesting decreases in fecal secondary bile acids in SPI rats. SPI and MS exhibited greater (P<.05) hepatic Fxr, Fgfr4, Hnf4a, HmgCoA reductase and synthase mRNA expression compared with MPI. Overall, dietary SPI compared with MPI decreased hepatic steatosis and diacylglycerols, changed microbiota populations and altered bile acid signaling and cholesterol homeostasis in a rodent model of obesity.
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97
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Herstad KMV, Gajardo K, Bakke AM, Moe L, Ludvigsen J, Rudi K, Rud I, Sekelja M, Skancke E. A diet change from dry food to beef induces reversible changes on the faecal microbiota in healthy, adult client-owned dogs. BMC Vet Res 2017; 13:147. [PMID: 28558792 PMCID: PMC5450340 DOI: 10.1186/s12917-017-1073-9] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 05/23/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Diet has a major influence on the composition of the gut microbiota, whose importance for gut health and overall well-being is increasingly recognized. Knowledge is limited regarding health implications, including effects on the faecal microbiota, of feeding a diet with high content of red meat to dogs, despite some owners' apparent preference to do so. The aim of this study was to evaluate how a diet change from commercial dry food to one with a high content of boiled minced beef and vice versa influenced the faecal microbiota, and short chain fatty acid profile in healthy, adult, client-owned dogs. RESULTS The diet change influenced the faecal microbiota composition and diversity (Shannon diversity index). The most abundant OTUs in samples of dogs fed the dry food and high minced beef were affiliated with the species Faecalibacterium prausnitzii and Clostridia hiranonis respectively. The high minced beef diet apparently also influenced the short chain fatty acid profile, with increased isovaleric acid, as well as an increase in faecal pH. These effects were reversed when the commercial dry food was reintroduced in weeks 6 and 7. CONCLUSIONS Results of this study can aid in the understanding of how diet changes influence the faecal microbiota and metabolite content on a short-term basis. Long-term studies are required to investigate potential implications for canine gut and general health.
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Affiliation(s)
- Kristin M V Herstad
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), Oslo, Norway.
| | - Karina Gajardo
- Department of Basic Sciences and Aquatic Medicine, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NBMU), Oslo, Norway
| | - Anne Marie Bakke
- Department of Basic Sciences and Aquatic Medicine, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NBMU), Oslo, Norway
| | - Lars Moe
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), Oslo, Norway
| | - Jane Ludvigsen
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Knut Rudi
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Ida Rud
- Nofima, Norwegian Institute of Food, Fisheries and Aquaculture Research, Ås, Norway
| | - Monika Sekelja
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences (NMBU), Ås, Norway.,Department of Molecular Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ellen Skancke
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), Oslo, Norway
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98
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Arias-Mutis OJ, Marrachelli VG, Ruiz-Saurí A, Alberola A, Morales JM, Such-Miquel L, Monleon D, Chorro FJ, Such L, Zarzoso M. Development and characterization of an experimental model of diet-induced metabolic syndrome in rabbit. PLoS One 2017; 12:e0178315. [PMID: 28542544 PMCID: PMC5441642 DOI: 10.1371/journal.pone.0178315] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/11/2017] [Indexed: 12/11/2022] Open
Abstract
Metabolic syndrome (MetS) has become one of the main concerns for public health because of its link to cardiovascular disease. Murine models have been used to study the effect of MetS on the cardiovascular system, but they have limitations for studying cardiac electrophysiology. In contrast, the rabbit cardiac electrophysiology is similar to human, but a detailed characterization of the different components of MetS in this animal is still needed. Our objective was to develop and characterize a diet-induced experimental model of MetS that allows the study of cardiovascular remodeling and arrhythmogenesis. Male NZW rabbits were assigned to control (n = 15) or MetS group (n = 16), fed during 28 weeks with high-fat, high-sucrose diet. We measured weight, morphological characteristics, blood pressure, glycaemia, standard plasma biochemistry and the metabolomic profile at weeks 14 and 28. Liver histological changes were evaluated using hematoxylin-eosin staining. A mixed model ANOVA or unpaired t-test were used for statistical analysis (P<0.05). Weight, abdominal contour, body mass index, systolic, diastolic and mean arterial pressure increased in the MetS group at weeks 14 and 28. Glucose, triglycerides, LDL, GOT-AST, GOT/GPT, bilirubin and bile acid increased, whereas HDL decreased in the MetS group at weeks 14 and 28. We found a 40% increase in hepatocyte area and lipid vacuoles infiltration in the liver from MetS rabbits. Metabolomic analysis revealed differences in metabolites related to fatty acids, energetic metabolism and microbiota, compounds linked with cardiovascular disease. Administration of high-fat and high-sucrose diet during 28 weeks induced obesity, glucose intolerance, hypertension, non-alcoholic hepatic steatosis and metabolic alterations, thus reproducing the main clinical manifestations of the metabolic syndrome in humans. This experimental model should provide a valuable tool for studies into the mechanisms of cardiovascular problems related to MetS, with special relevance in the study of cardiovascular remodeling, arrhythmias and SCD.
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Affiliation(s)
- Oscar Julián Arias-Mutis
- Health Research Institute (INCLIVA), Valencia, Spain
- Department of Physiology, Universitat de València, Valencia, Spain
| | - Vannina G. Marrachelli
- Health Research Institute (INCLIVA), Valencia, Spain
- Department of Physiology, Universitat de València, Valencia, Spain
| | | | - Antonio Alberola
- Department of Physiology, Universitat de València, Valencia, Spain
| | | | - Luis Such-Miquel
- Department of Physiotherapy, Universitat de València, Valencia, Spain
| | - Daniel Monleon
- Health Research Institute (INCLIVA), Valencia, Spain
- Department of Pathology, Universitat de València, Valencia, Spain
| | - Francisco J. Chorro
- Health Research Institute (INCLIVA), Valencia, Spain
- Department of Cardiology, Clinic Hospital of Valencia, Valencia, Spain
- CIBERCV, Instituto de Salud Carlos III, Madrid, Spain
| | - Luis Such
- Department of Physiology, Universitat de València, Valencia, Spain
| | - Manuel Zarzoso
- Department of Physiotherapy, Universitat de València, Valencia, Spain
- * E-mail:
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99
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Nolan JA, Skuse P, Govindarajan K, Patterson E, Konstantinidou N, Casey PG, MacSharry J, Shanahan F, Stanton C, Hill C, Cotter PD, Joyce SA, Gahan CGM. The influence of rosuvastatin on the gastrointestinal microbiota and host gene expression profiles. Am J Physiol Gastrointest Liver Physiol 2017; 312:G488-G497. [PMID: 28209601 DOI: 10.1152/ajpgi.00149.2016] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 02/01/2017] [Accepted: 02/08/2017] [Indexed: 01/31/2023]
Abstract
Statins are the most widely prescribed medications worldwide for the treatment of hypercholesterolemia. They inhibit the activity of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-R), an enzyme involved in cholesterol synthesis in higher organisms and in isoprenoid biosynthesis in some bacteria. We hypothesized that statins may influence the microbial community in the gut through either direct inhibition or indirect mechanisms involving alterations to host responses. We therefore examined the impact of rosuvastatin (RSV) on the community structure of the murine gastrointestinal microbiota. RSV was orally administered to mice and the effects on the gut microbiota, host bile acid profiles, and markers of inflammation were analyzed. RSV significantly influenced the microbial community in both the cecum and feces, causing a significant decrease in α-diversity in the cecum and resulting in a reduction of several physiologically relevant bacterial groups. RSV treatment of mice significantly affected bile acid metabolism and impacted expression of inflammatory markers known to influence microbial community structure (including RegIIIγ and Camp) in the gut. This study suggests that a commonly used statin (RSV) leads to an altered gut microbial composition in normal mice with attendant impacts on local gene expression profiles, a finding that should prompt further studies to investigate the implications of statins for gut microbiota stability and health in humans.NEW & NOTEWORTHY This work demonstrates that rosuvastatin administration in mice affects the gastrointestinal microbiota, influences bile acid metabolism, and alters transcription of genes encoding factors involved in gut homeostasis and immunity in the gastrointestinal tract.
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Affiliation(s)
- J A Nolan
- APC Microbiome Institute, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland
| | - P Skuse
- Teagasc Food Research Centre, Biosciences Department, Moorepark, Fermoy, Cork, Ireland
| | - K Govindarajan
- APC Microbiome Institute, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland
| | - E Patterson
- APC Microbiome Institute, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Biosciences Department, Moorepark, Fermoy, Cork, Ireland
| | | | - P G Casey
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - J MacSharry
- APC Microbiome Institute, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland.,School of Medicine, University College Cork, Cork, Ireland; and
| | - F Shanahan
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - C Stanton
- APC Microbiome Institute, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Biosciences Department, Moorepark, Fermoy, Cork, Ireland
| | - C Hill
- APC Microbiome Institute, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland
| | - P D Cotter
- APC Microbiome Institute, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Biosciences Department, Moorepark, Fermoy, Cork, Ireland
| | - S A Joyce
- APC Microbiome Institute, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland.,School of Medicine, University College Cork, Cork, Ireland; and
| | - C G M Gahan
- APC Microbiome Institute, University College Cork, Cork, Ireland; .,School of Microbiology, University College Cork, Cork, Ireland.,School of Pharmacy, University College Cork, Cork, Ireland
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100
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Watanabe M, Fukiya S, Yokota A. Comprehensive evaluation of the bactericidal activities of free bile acids in the large intestine of humans and rodents. J Lipid Res 2017; 58:1143-1152. [PMID: 28404640 DOI: 10.1194/jlr.m075143] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 04/03/2017] [Indexed: 01/01/2023] Open
Abstract
In addition to functioning as detergents that aid digestion of dietary lipids in the intestine, some bile acids have been shown to exhibit antimicrobial activity. However, detailed information on the bactericidal activities of the diverse molecular species of bile acid in humans and rodents is largely unknown. Here, we investigated the toxicity of 14 typical human and rodent free bile acids (FBAs) by monitoring intracellular pH, membrane integrity, and viability of a human intestinal bacterium, Bifidobacterium breve Japan Collection of Microorganisms (JCM) 1192T, upon exposure to these FBAs. Of all FBAs evaluated, deoxycholic acid (DCA) and chenodeoxycholic acid displayed the highest toxicities. Nine FBAs common to humans and rodents demonstrated that α-hydroxy-type bile acids are more toxic than their oxo-derivatives and β-hydroxy-type epimers. In five rodent-specific FBAs, β-muricholic acid and hyodeoxycholic acid showed comparable toxicities at a level close to DCA. Similar trends were observed for the membrane-damaging effects and bactericidal activities to Blautia coccoides JCM 1395T and Bacteroides thetaiotaomicron DSM 2079T, commonly represented in the human and rodent gut microbiota. These findings will help us to determine the fundamental properties of FBAs and better understand the role of FBAs in the regulation of gut microbiota composition.
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Affiliation(s)
- Masamichi Watanabe
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Satoru Fukiya
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Atsushi Yokota
- Laboratory of Microbial Physiology, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
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