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Yau JW, Thor SM, Ramadas A. Nutritional Strategies in Prediabetes: A Scoping Review of Recent Evidence. Nutrients 2020; 12:E2990. [PMID: 33003593 PMCID: PMC7650618 DOI: 10.3390/nu12102990] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 02/06/2023] Open
Abstract
Nutritional therapy has been conventionally recommended for people with prediabetes as a method to delay or halt progression to type 2 diabetes. However, recommended nutritional strategies evolve over time. Hence, we performed a scoping review on recently reported nutritional interventions for individuals with prediabetes. Ovid MEDLINE, PubMed, Embase, Scopus, CINAHL and PsycINFO databases were searched to identify relevant research articles published within the past 10 years. Ninety-five articles involving a total of 11,211 participants were included in this review. Nutritional strategies were broadly classified into four groups: low calorie diet, low glycemic index diet, specific foods, and a combination of diet and exercise. The most frequently assessed outcomes were plasma glucose, serum insulin, serum lipid profile, body mass index and body weight. More than 50% of reported interventions resulted in significant improvements in these parameters. Nutritional interventions have demonstrated feasibility and practicality as an effective option for prediabetes management. However, the intervention variability demonstrates the challenges of a 'one-size-fits-all' approach. Investigations in genetically diverse populations and objective assessment of progression rate to diabetes are necessary to better comprehend the impact of these nutritional strategies in prediabetes.
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Affiliation(s)
| | | | - Amutha Ramadas
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (J.W.Y.); (S.M.T.)
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102
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Corsello A, Pugliese D, Gasbarrini A, Armuzzi A. Diet and Nutrients in Gastrointestinal Chronic Diseases. Nutrients 2020; 12:nu12092693. [PMID: 32899273 PMCID: PMC7551310 DOI: 10.3390/nu12092693] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/27/2020] [Accepted: 09/01/2020] [Indexed: 02/07/2023] Open
Abstract
Diet and nutrition are known to play key roles in many chronic gastrointestinal diseases, regarding both pathogenesis and therapeutic possibilities. A strong correlation between symptomatology, disease activity and eating habits has been observed in many common diseases, both organic and functional, such as inflammatory bowel disease and irritable bowel syndrome. New different dietary approaches have been evaluated in order improve patients’ symptoms, modulating the type of sugars ingested, the daily amount of fats or the kind of metabolites produced in gut. Even if many clinical studies have been conducted to fully understand the impact of nutrition on the progression of disease, more studies are needed to test the most promising approaches for different diseases, in order to define useful guidelines for patients.
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Affiliation(s)
- Antonio Corsello
- OU Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (D.P.); (A.G.); (A.A.)
- Correspondence: ; Tel.: +39-380-381-0206
| | - Daniela Pugliese
- OU Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (D.P.); (A.G.); (A.A.)
| | - Antonio Gasbarrini
- OU Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (D.P.); (A.G.); (A.A.)
- Istituto di Patologia Speciale Medica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - Alessandro Armuzzi
- OU Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (D.P.); (A.G.); (A.A.)
- Istituto di Patologia Speciale Medica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
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103
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Nguyen NK, Deehan EC, Zhang Z, Jin M, Baskota N, Perez-Muñoz ME, Cole J, Tuncil YE, Seethaler B, Wang T, Laville M, Delzenne NM, Bischoff SC, Hamaker BR, Martínez I, Knights D, Bakal JA, Prado CM, Walter J. Gut microbiota modulation with long-chain corn bran arabinoxylan in adults with overweight and obesity is linked to an individualized temporal increase in fecal propionate. MICROBIOME 2020; 8:118. [PMID: 32814582 PMCID: PMC7439537 DOI: 10.1186/s40168-020-00887-w] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 06/30/2020] [Indexed: 05/19/2023]
Abstract
BACKGROUND Variability in the health effects of dietary fiber might arise from inter-individual differences in the gut microbiota's ability to ferment these substrates into beneficial metabolites. Our understanding of what drives this individuality is vastly incomplete and will require an ecological perspective as microbiomes function as complex inter-connected communities. Here, we performed a parallel two-arm, exploratory randomized controlled trial in 31 adults with overweight and class-I obesity to characterize the effects of long-chain, complex arabinoxylan (n = 15) at high supplementation doses (female: 25 g/day; male: 35 g/day) on gut microbiota composition and short-chain fatty acid production as compared to microcrystalline cellulose (n = 16, non-fermentable control), and integrated the findings using an ecological framework. RESULTS Arabinoxylan resulted in a global shift in fecal bacterial community composition, reduced α-diversity, and the promotion of specific taxa, including operational taxonomic units related to Bifidobacterium longum, Blautia obeum, and Prevotella copri. Arabinoxylan further increased fecal propionate concentrations (p = 0.012, Friedman's test), an effect that showed two distinct groupings of temporal responses in participants. The two groups showed differences in compositional shifts of the microbiota (p ≤ 0.025, PERMANOVA), and multiple linear regression (MLR) analyses revealed that the propionate response was predictable through shifts and, to a lesser degree, baseline composition of the microbiota. Principal components (PCs) derived from community data were better predictors in MLR models as compared to single taxa, indicating that arabinoxylan fermentation is the result of multi-species interactions within microbiomes. CONCLUSION This study showed that long-chain arabinoxylan modulates both microbiota composition and the output of health-relevant SCFAs, providing information for a more targeted application of this fiber. Variation in propionate production was linked to both compositional shifts and baseline composition, with PCs derived from shifts of the global microbial community showing the strongest associations. These findings constitute a proof-of-concept for the merit of an ecological framework that considers features of the wider gut microbial community for the prediction of metabolic outcomes of dietary fiber fermentation. This provides a basis to personalize the use of dietary fiber in nutritional application and to stratify human populations by relevant gut microbiota features to account for the inconsistent health effects in human intervention studies. TRIAL REGISTRATION Clinicaltrials.gov, NCT02322112 , registered on July 3, 2015. Video Abstract.
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Affiliation(s)
- Nguyen K. Nguyen
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Edward C. Deehan
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Zhengxiao Zhang
- Department of Medicine, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Mingliang Jin
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
- School of Life Science, Northwestern Polytechnical University, Xi’an, 710072 People’s Republic of China
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058 People’s Republic of China
| | - Nami Baskota
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Maria Elisa Perez-Muñoz
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Janis Cole
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Yunus E. Tuncil
- Food Engineering Department, Ordu University, 52200 Ordu, Turkey
- Whistler Center for Carbohydrate Research and Department of Food Science, Purdue University, West Lafayette, IN 47907 USA
| | - Benjamin Seethaler
- Institute of Nutritional Medicine, University of Hohenheim, 70593 Stuttgart, Germany
| | - Ting Wang
- Patient Health Outcomes Research and Clinical Effectiveness Unit, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Martine Laville
- Centre de Recherche en Nutrition Humaine Rhône-Alpes and Centre Européen Nutrition Santé, 69310 Pierre Bénite, France
| | - Nathalie M. Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Stephan C. Bischoff
- Institute of Nutritional Medicine, University of Hohenheim, 70593 Stuttgart, Germany
| | - Bruce R. Hamaker
- Whistler Center for Carbohydrate Research and Department of Food Science, Purdue University, West Lafayette, IN 47907 USA
| | - Inés Martínez
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Dan Knights
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455 USA
- BioTechnology Institute, University of Minnesota, Saint Paul, MN 55455 USA
| | - Jeffrey A. Bakal
- Patient Health Outcomes Research and Clinical Effectiveness Unit, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Carla M. Prado
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
| | - Jens Walter
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2E1 Canada
- Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E1 Canada
- School of Microbiology, Department of Medicine, and APC Microbiome Institute, University College Cork–National University of Ireland, Cork, T12 YT20 Ireland
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104
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Ramírez-Vélez R, Izquierdo M, Castro-Astudillo K, Medrano-Mena C, Monroy-Díaz AL, Castellanos-Vega RDP, Triana-Reina HR, Correa-Rodríguez M. Weight Loss after 12 Weeks of Exercise and/or Nutritional Guidance Is Not Obligatory for Induced Changes in Local Fat/Lean Mass Indexes in Adults with Excess of Adiposity. Nutrients 2020; 12:nu12082231. [PMID: 32722652 PMCID: PMC7468717 DOI: 10.3390/nu12082231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 01/17/2023] Open
Abstract
The objectives of this secondary analysis are (1) to investigate the differential effects of exercise training modalities-high-intensity interval training (HIIT), resistance training (RT), combined training (CT = HIIT + RT), and/or nutritional guidance (NG) alone-on local fat/lean mass indexes in adults with excess of adiposity; (2) to identify the individual patterns of response based on either a clinical criterion of weight loss (≥5%) and/or technical error (TE) of measurement of local fat/lean mass indexes; and (3) to assess the individual change for body composition parameters assigned either to HIIT, RT, CT, and/or NG groups utilizing a TE. A 12-week trial was conducted in 55 participants randomized to one of the four interventions. The primary outcome was clinical change in body weight (i.e., weight loss of ≥5%). Secondary outcomes included change in ratio of android and gynoid fat mass, as well as local fat and lean mass indexes (arms, trunk, and legs), before and after intervention. The main findings from the current analysis revealed that (i) after 12 weeks of follow-up, significant decreases in several body composition indexes were found including body weight, arm, trunk, and legs fat mass, and android and gynecoid fat mass were observed in HIIT, RT, and CT groups (p < 0.05); (ii) a significant proportion of individuals showed a positive response following 12 weeks of training, led by the HIIT group with 44% and followed by RT with 39% in 9 indexes; (iii) the HIIT group showed lowest rates of adverse responders with (6%); and (iv) the individual patterns of response utilizing clinically meaningful weight loss were not necessarily associated with the corresponding individual training-induced changes in body composition indexes in adults with excess of adiposity. Overall, the study suggests that HIIT has an important ability to reduce the prevalence of non-response to improve body composition indexes.
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Affiliation(s)
- Robinson Ramírez-Vélez
- Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Navarra, Spain;
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-695-526-321
| | - Mikel Izquierdo
- Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Navarra, Spain;
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Karem Castro-Astudillo
- Centro de Acondicionamiento Físico y Nutrición, KCFIT, Santiago de Cali, Valle 760011, Colombia;
| | - Carolina Medrano-Mena
- Facultad de Organización Deportiva, Universidad Autónoma de Nuevo León, Nuevo León 66455, Mexico;
| | - Angela Liliana Monroy-Díaz
- Programa de Bacteriología y Laboratorio Clínico, Facultad de Ciencias de la Salud-Universidad de Boyacá, Tunja 150003, Boyacá, Colombia;
| | | | - Héctor Reynaldo Triana-Reina
- Grupo GICAEDS, Programa de Cultura Física, Deporte y Recreación, Universidad Santo Tomás, Bogotá 110311, Colombia;
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105
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Farràs M, Martinez-Gili L, Portune K, Arranz S, Frost G, Tondo M, Blanco-Vaca F. Modulation of the Gut Microbiota by Olive Oil Phenolic Compounds: Implications for Lipid Metabolism, Immune System, and Obesity. Nutrients 2020; 12:nu12082200. [PMID: 32718098 PMCID: PMC7468985 DOI: 10.3390/nu12082200] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 07/20/2020] [Indexed: 12/11/2022] Open
Abstract
There is extensive information of the beneficial effects of virgin olive oil (VOO), especially on cardiovascular diseases. Some VOO healthy properties have been attributed to their phenolic-compounds (PCs). The aim of this review is to present updated data on the effects of olive oil (OO) PCs on the gut microbiota, lipid metabolism, immune system, and obesity, as well as on the crosstalk among them. We summarize experiments and clinical trials which assessed the specific effects of the olive oil phenolic-compounds (OOPCs) without the synergy with OO-fats. Several studies have demonstrated that OOPC consumption increases Bacteroidetes and/or reduces the Firmicutes/Bacteroidetes ratio, which have both been related to atheroprotection. OOPCs also increase certain beneficial bacteria and gut-bacteria diversity which can be therapeutic for lipid-immune disorders and obesity. Furthermore, some of the mechanisms implicated in the crosstalk between OOPCs and these disorders include antimicrobial-activity, cholesterol microbial metabolism, and metabolites produced by bacteria. Specifically, OOPCs modulate short-chain fatty-acids produced by gut-microbiota, which can affect cholesterol metabolism and the immune system, and may play a role in weight gain through promoting satiety. Since data in humans are scarce, there is a necessity for more clinical trials designed to assess the specific role of the OOPCs in this crosstalk.
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Affiliation(s)
- Marta Farràs
- Institut de Recerca de l’Hospital Santa Creu i Sant Pau, Institut d’Investigacions Biomèdiques (IIB) Sant Pau, 08041 Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 08907 Barcelona, Spain;
- Correspondence: ; Tel.: +34-935537595
| | - Laura Martinez-Gili
- Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK;
| | - Kevin Portune
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, AstondoBidea, Edificio 609, 48160 Derio, Spain; (K.P.); (S.A.)
| | - Sara Arranz
- AZTI, Food Research, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, AstondoBidea, Edificio 609, 48160 Derio, Spain; (K.P.); (S.A.)
| | - Gary Frost
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK;
| | - Mireia Tondo
- Hospital de la Santa Creu i Sant Pau, Servei de Bioquímica-Institut d’Investigacions Biomèdiques (IIB) Sant Pau, 08041 Barcelona, Spain;
| | - Francisco Blanco-Vaca
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 08907 Barcelona, Spain;
- Hospital de la Santa Creu i Sant Pau, Servei de Bioquímica-Institut d’Investigacions Biomèdiques (IIB) Sant Pau, 08041 Barcelona, Spain;
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
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106
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Sulaiman I, Schuster S, Segal LN. Perspectives in lung microbiome research. Curr Opin Microbiol 2020; 56:24-29. [PMID: 32623064 DOI: 10.1016/j.mib.2020.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/05/2020] [Accepted: 06/01/2020] [Indexed: 12/18/2022]
Abstract
Our understanding of the existence and role of the lung microbiome has grown at a slower pace than other microbiome research areas. This is likely a consequence of the original dogma that the lung was a sterile environment although there are other barriers that are worth discussing. Here we will not be conducting an exhaustive review of the current literature on the lung microbiome, but rather we will focus on what we see as some important challenges that the field needs to face in order to improve our mechanistic understanding of the lung microbiome and its role on human health.
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Affiliation(s)
- Imran Sulaiman
- Division of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, New York University School of Medicine, NY, United States
| | - Sheeja Schuster
- Division of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, New York University School of Medicine, NY, United States
| | - Leopoldo N Segal
- Division of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, New York University School of Medicine, NY, United States.
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107
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Stiemsma LT, Nakamura RE, Nguyen JG, Michels KB. Does Consumption of Fermented Foods Modify the Human Gut Microbiota? J Nutr 2020; 150:1680-1692. [PMID: 32232406 PMCID: PMC7330458 DOI: 10.1093/jn/nxaa077] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/21/2020] [Accepted: 03/02/2020] [Indexed: 01/08/2023] Open
Abstract
The human microbiota is a key contributor to many aspects of human health and its composition is largely influenced by diet. There is a growing body of scientific evidence to suggest that gut dysbiosis (microbial imbalance of the intestine) is associated with inflammatory and immune-mediated diseases (e.g., inflammatory bowel disease and asthma). Regular consumption of fermented foods (e.g., kimchi, kefir, etc.) may represent a potential avenue to counter the proinflammatory effects of gut dysbiosis. However, an assessment of the available literature in this research area is lacking. Here we provide a critical review of current human intervention studies that analyzed the effect of fermented foods on the composition and/or function of the human gut microbiota. A total of 19 human intervention studies were identified that met this search criteria. In this review, we discuss evidence that consumption of fermented foods may modify the gut microbiota in humans. Further, there is cursory evidence to suggest that gut microbiota compositional changes mediate associations between fermented food consumption and human health outcomes. Although promising, there remains considerable heterogeneity in the human populations targeted in the intervention studies we identified. Larger longitudinal feeding studies with longer follow-up are necessary to confirm and enhance the current data. Further, future studies should consider analyzing microbiota function as a means to elucidate the mechanism linking fermented food consumption with human health. This review highlights methodologic considerations for intervention trials, emphasizing an expanse of research opportunities related to fermented food consumption in humans.
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Affiliation(s)
- Leah T Stiemsma
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Reine E Nakamura
- Department of Integrative Biology and Physiology, University of California, Los Angeles, CA, USA
| | - Jennifer G Nguyen
- Department of Biology, University of California, Los Angeles, CA, USA
| | - Karin B Michels
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
- Institute for Prevention and Cancer Epidemiology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
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108
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Johnson AJ, Zheng JJ, Kang JW, Saboe A, Knights D, Zivkovic AM. A Guide to Diet-Microbiome Study Design. Front Nutr 2020; 7:79. [PMID: 32596250 PMCID: PMC7303276 DOI: 10.3389/fnut.2020.00079] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 05/04/2020] [Indexed: 12/12/2022] Open
Abstract
Intense recent interest in understanding how the human gut microbiome influences health has kindled a concomitant interest in linking dietary choices to microbiome variation. Diet is known to be a driver of microbiome variation, and yet the precise mechanisms by which certain dietary components modulate the microbiome, and by which the microbiome produces byproducts and secondary metabolites from dietary components, are not well-understood. Interestingly, despite the influence of diet on the gut microbiome, the majority of microbiome studies published to date contain little or no analysis of dietary intake. Although an increasing number of microbiome studies are now collecting some form of dietary data or even performing diet interventions, there are no clear standards in the microbiome field for how to collect diet data or how to design a diet-microbiome study. In this article, we review the current practices in diet-microbiome analysis and study design and make several recommendations for best practices to provoke broader discussion in the field. We recommend that microbiome studies include multiple consecutive microbiome samples per study timepoint or phase and multiple days of dietary history prior to each microbiome sample whenever feasible. We find evidence that direct effects of diet on the microbiome are likely to be observable within days, while the length of an intervention required for observing microbiome-mediated effects on the host phenotype or host biomarkers, depending on the outcome, may be much longer, on the order of weeks or months. Finally, recent studies demonstrating that diet-microbiome interactions are personalized suggest that diet-microbiome studies should either include longitudinal sampling within individuals to identify personalized responses, or should include an adequate number of participants spanning a range of microbiome types to identify generalized responses.
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Affiliation(s)
- Abigail J Johnson
- BioTechnology Institute, College of Biological Sciences, University of Minnesota, Minneapolis, MN, United States
| | - Jack Jingyuan Zheng
- Department of Nutrition, University of California, Davis, Davis, CA, United States
| | - Jea Woo Kang
- Department of Nutrition, University of California, Davis, Davis, CA, United States
| | - Anna Saboe
- BioTechnology Institute, College of Biological Sciences, University of Minnesota, Minneapolis, MN, United States
| | - Dan Knights
- BioTechnology Institute, College of Biological Sciences, University of Minnesota, Minneapolis, MN, United States.,Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Angela M Zivkovic
- Department of Nutrition, University of California, Davis, Davis, CA, United States
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109
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Smith NW, Shorten PR, Altermann E, Roy NC, McNabb WC. Competition for Hydrogen Prevents Coexistence of Human Gastrointestinal Hydrogenotrophs in Continuous Culture. Front Microbiol 2020; 11:1073. [PMID: 32547517 PMCID: PMC7272605 DOI: 10.3389/fmicb.2020.01073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/29/2020] [Indexed: 01/24/2023] Open
Abstract
Understanding the metabolic dynamics of the human gastrointestinal tract (GIT) microbiota is of growing importance as research continues to link the microbiome to host health status. Microbial strains that metabolize hydrogen have been associated with a variety of both positive and negative host nutritional and health outcomes, but limited data exists for their competition in the GIT. To enable greater insight into the behaviour of these microbes, a mathematical model was developed for the metabolism and growth of the three major hydrogenotrophic groups: sulphate-reducing bacteria (SRB), methanogens and reductive acetogens. In batch culture simulations with abundant sulphate and hydrogen, the SRB outcompeted the methanogen for hydrogen due to having a half-saturation constant 106 times lower than that of the methanogen. The acetogen, with a high model threshold for hydrogen uptake of around 70 mM, was the least competitive. Under high lactate and zero sulphate conditions, hydrogen exchange between the SRB and the methanogen was the dominant interaction. The methanogen grew at 70% the rate of the SRB, with negligible acetogen growth. In continuous culture simulations, both the SRB and the methanogen were washed out at dilution rates above 0.15 h−1 regardless of substrate availability, whereas the acetogen could survive under abundant hydrogen conditions. Specific combinations of conditions were required for survival of more than one hydrogenotroph in continuous culture, and survival of all three was not possible. The stringency of these requirements and the inability of the model to simulate survival of all three hydrogenotrophs in continuous culture demonstrates that factors outside of those modelled are vital to allow hydrogenotroph coexistence in the GIT.
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Affiliation(s)
- Nick W Smith
- School of Food and Advanced Technology, Massey University, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand.,AgResearch, Ruakura Research Centre, Hamilton, New Zealand.,AgResearch, Grasslands Research Centre, Palmerston North, New Zealand
| | - Paul R Shorten
- Riddet Institute, Massey University, Palmerston North, New Zealand.,AgResearch, Ruakura Research Centre, Hamilton, New Zealand
| | - Eric Altermann
- Riddet Institute, Massey University, Palmerston North, New Zealand.,AgResearch, Grasslands Research Centre, Palmerston North, New Zealand
| | - Nicole C Roy
- Riddet Institute, Massey University, Palmerston North, New Zealand.,AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, Auckland, New Zealand.,Liggins Institute, The University of Auckland, Auckland, New Zealand
| | - Warren C McNabb
- Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, Auckland, New Zealand
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110
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Vernocchi P, Del Chierico F, Putignani L. Gut Microbiota Metabolism and Interaction with Food Components. Int J Mol Sci 2020; 21:ijms21103688. [PMID: 32456257 PMCID: PMC7279363 DOI: 10.3390/ijms21103688] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 12/13/2022] Open
Abstract
The human gut contains trillions of microbes that play a central role in host biology, including the provision of key nutrients from the diet. Food is a major source of precursors for metabolite production; in fact, diet modulates the gut microbiota (GM) as the nutrients, derived from dietary intake, reach the GM, affecting both the ecosystem and microbial metabolic profile. GM metabolic ability has an impact on human nutritional status from childhood. However, there is a wide variability of dietary patterns that exist among individuals. The study of interactions with the host via GM metabolic pathways is an interesting field of research in medicine, as microbiota members produce myriads of molecules with many bioactive properties. Indeed, much evidence has demonstrated the importance of metabolites produced by the bacterial metabolism from foods at the gut level that dynamically participate in various biochemical mechanisms of a cell as a reaction to environmental stimuli. Hence, the GM modulate homeostasis at the gut level, and the alteration in their composition can concur in disease onset or progression, including immunological, inflammatory, and metabolic disorders, as well as cancer. Understanding the gut microbe–nutrient interactions will increase our knowledge of how diet affects host health and disease, thus enabling personalized therapeutics and nutrition.
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Affiliation(s)
- Pamela Vernocchi
- Unit of Human Microbiome, Bambino Gesù Children’s Hospital, IRCCS, Viale San Paolo 15, 00146 Rome, Italy;
- Correspondence: ; Tel.: +39-0668-594061; Fax: +39-0668-592218
| | - Federica Del Chierico
- Unit of Human Microbiome, Bambino Gesù Children’s Hospital, IRCCS, Viale San Paolo 15, 00146 Rome, Italy;
| | - Lorenza Putignani
- Unit of Parasitology and Unit of Human Microbiome, Bambino Gesù Children’s Hospital, IRCCS, Piazza Sant’ Onofrio 4, 00165 Rome, Italy;
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111
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Coras R, Murillo-Saich JD, Guma M. Circulating Pro- and Anti-Inflammatory Metabolites and Its Potential Role in Rheumatoid Arthritis Pathogenesis. Cells 2020; 9:E827. [PMID: 32235564 PMCID: PMC7226773 DOI: 10.3390/cells9040827] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 12/11/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease that affects synovial joints, leading to inflammation, joint destruction, loss of function, and disability. Although recent pharmaceutical advances have improved the treatment of RA, patients often inquire about dietary interventions to improve RA symptoms, as they perceive pain and/or swelling after the consumption or avoidance of certain foods. There is evidence that some foods have pro- or anti-inflammatory effects mediated by diet-related metabolites. In addition, recent literature has shown a link between diet-related metabolites and microbiome changes, since the gut microbiome is involved in the metabolism of some dietary ingredients. But diet and the gut microbiome are not the only factors linked to circulating pro- and anti-inflammatory metabolites. Other factors including smoking, associated comorbidities, and therapeutic drugs might also modify the circulating metabolomic profile and play a role in RA pathogenesis. This article summarizes what is known about circulating pro- and anti-inflammatory metabolites in RA. It also emphasizes factors that might be involved in their circulating concentrations and diet-related metabolites with a beneficial effect in RA.
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Affiliation(s)
- Roxana Coras
- Department of Medicine, School of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093, USA; (R.C.); (J.D.M.-S.)
- Department of Medicine, Autonomous University of Barcelona, Plaça Cívica, 08193 Bellaterra, Barcelona, Spain
| | - Jessica D. Murillo-Saich
- Department of Medicine, School of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093, USA; (R.C.); (J.D.M.-S.)
| | - Monica Guma
- Department of Medicine, School of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093, USA; (R.C.); (J.D.M.-S.)
- Department of Medicine, Autonomous University of Barcelona, Plaça Cívica, 08193 Bellaterra, Barcelona, Spain
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112
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Dairy product intake modifies gut microbiota composition among hyperinsulinemic individuals. Eur J Nutr 2020; 60:159-167. [PMID: 32232546 DOI: 10.1007/s00394-020-02226-z] [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: 08/27/2019] [Accepted: 03/09/2020] [Indexed: 12/22/2022]
Abstract
PURPOSES The objectives of this study were to investigate differences in gut microbiota (GM) composition after high dairy intake (HD) compared to adequate dairy intake (AD) and to correlate GM composition variations with the change in glycemic parameters in hyperinsulinemic subjects. METHODS In this crossover study, 10 hyperinsulinemic adults were randomized to HD (≥ 4 servings/day) or AD (≤ 2 servings/day) for 6 weeks, separated by a 6-week washout period. Fasting insulin and glucose levels were measured after each intervention. Insulin resistance was calculated with the homeostasis model assessment of insulin resistance (HOMA-IR). GM was determined with 16S rRNA-based high-throughput sequencing at the end of each intervention. Paired t test, correlations and machine learning analyses were performed. RESULTS Endpoint glycemic parameters were not different between HD and AD intake. After HD compared with AD intake, there was a decrease in the abundance of bacteria in Roseburia and Verrucomicrobia (p = 0.04 and p = 0.02, respectively) and a trend for an increase abundance in Faecalibacteria and Flavonifractor (p = 0.05 and p = 0.06, respectively). The changes in abundance of Coriobacteriia, Erysipelotrichia, and Flavonifractor were negatively correlated with the change in HOMA-IR between the AD and HD phases. Furthermore, a predictive GM signature, including Anaerotruncus, Flavonifractor, Ruminococcaceae, and Subdoligranulum, was related to HOMA-IR. CONCLUSION Overall, these results suggest that HD modifies the abundance of specific butyrate-producing bacteria in Firmicutes and of bacteria in Verrucomicrobia in hyperinsulinemic individuals. In addition, the butyrate producing bacteria in Firmicutes phylum correlate negatively with insulin resistance.
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113
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Shao M, Zhu Y. Long-term metal exposure changes gut microbiota of residents surrounding a mining and smelting area. Sci Rep 2020; 10:4453. [PMID: 32157109 PMCID: PMC7064573 DOI: 10.1038/s41598-020-61143-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 02/05/2020] [Indexed: 12/13/2022] Open
Abstract
In this epidemiologic study, 16 S rRNA sequencing was used to investigate the changes of diversity and composition profile of gut microbiota resulting from long-term exposure to multiple metals, including arsenic (As), cadmium (Cd), cuprum (Cu), lead (Pb), and zinc (Zn). Due to long-term exposure to various metals, the relative abundances of Lachnospiraceae, Eubacterium eligens, Ruminococcaceae UGG-014, Erysipelotrichaceae UCG-003, Tyzzerella 3, Bacteroides, Slackia, italics, and Roseburia were found to become much higher, whereas the abundance of Prevotella 9 presented an opposite trend. Additionally, differences between males and female groups were found, such as the greater richness and evenness of bacteria for men subjected to long-term metal exposure in polluted areas. The changes of men’s microbiomes were more significant as a result of higher daily intake, mining and smelting activity, and living habits. This research presents a new theoretical basis for the correlation between long-term metal exposure and gut health for people living in contaminated areas.
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Affiliation(s)
- Mengmeng Shao
- The College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Yi Zhu
- The College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
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114
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Medrano M, Arenaza L, Ramírez-Vélez R, Ortega FB, Ruiz JR, Labayen I. Prevalence of responders for hepatic fat, adiposity and liver enzyme levels in response to a lifestyle intervention in children with overweight/obesity: EFIGRO randomized controlled trial. Pediatr Diabetes 2020; 21:215-223. [PMID: 31778277 DOI: 10.1111/pedi.12949] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/26/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND/OBJECTIVE Exercise and lifestyle interventions have been shown to reduce hepatic fat (HF) and adiposity in youth. However, the interindividual response in HF after a lifestyle intervention with or without exercise in children is unknown. The aim of the present study was to compare interindividual variability for HF, adiposity, gamma-glutamyl transferase (GGT), and the aspartate aminotransferase to alanine aminotransferase ratio (AST/ALT) in children with overweight/obesity participating in a 22-week lifestyle intervention with (intensive intervention) or without exercise (control intervention). METHODS Data from 102 children (9-12 years, 55% girls) with overweight/obesity participating in the EFIGRO randomized controlled trial were analyzed. Percentage HF (magnetic resonance imaging), weight, body and fat mass index (BMI and FMI), GGT, AST/ALT, cardiorespiratory fitness (CRF, 20 meters shuttle run test) were assessed before and after the intervention by the same trained researchers. The control intervention consisted in 11 sessions of a family-based lifestyle and psycho-educational program. The intensive intervention included the control intervention plus supervised exercise (3 sessions/week). RESULTS The prevalence of responders for HF (54% vs. 34%), weight (27% vs. 11%), BMI (71% vs. 47%), FMI (90% vs. 60%), and GGT (69% vs. 39%) was higher in the intensive than in the control group (Ps < 0.05). Responders for weight (16 ± 3 vs. 6 ± 2 laps) and BMI (11 ± 2 vs. 3 ± 4 laps) improved more CRF levels than non-responders (Ps < 0.05). CONCLUSIONS The addition of exercise to a lifestyle intervention may increase the responder rates for HF, adiposity, and GGT in children with overweight/obesity. Improvements in CRF may explain differences between weight and BMI responders and non-responders. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02258126.
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Affiliation(s)
- María Medrano
- ELIKOS group, Institute for Innovation & Sustainable Development in Food Chain (IS-FOOD), Department of Health Sciences, Public University of Navarra, Pamplona, Spain
| | - Lide Arenaza
- ELIKOS group, Institute for Innovation & Sustainable Development in Food Chain (IS-FOOD), Department of Health Sciences, Public University of Navarra, Pamplona, Spain
| | - Robinson Ramírez-Vélez
- Navarrabiomed-Universidad Pública de Navarra (UPNA)-Complejo Hospitalario de Navarra (CHN), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Navarra, Spain
| | - Francisco B Ortega
- PROFITH "PROmoting FITness and Health through physical activity" Research Group, Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet, Huddinge, Sweden
| | - Jonatan R Ruiz
- PROFITH "PROmoting FITness and Health through physical activity" Research Group, Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Department of Biosciences and Nutrition at NOVUM, Karolinska Institutet, Huddinge, Sweden
| | - Idoia Labayen
- ELIKOS group, Institute for Innovation & Sustainable Development in Food Chain (IS-FOOD), Department of Health Sciences, Public University of Navarra, Pamplona, Spain
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115
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Effects of gastrointestinal digested polyphenolic enriched extracts of Chilean currants (Ribes magellanicum and Ribes punctatum) on in vitro fecal microbiota. Food Res Int 2020; 129:108848. [DOI: 10.1016/j.foodres.2019.108848] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 10/18/2019] [Accepted: 11/19/2019] [Indexed: 01/10/2023]
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116
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Seesaha PK, Chen X, Wu X, Xu H, Li C, Jheengut Y, Zhao F, Liu L, Zhang D. The interplay between dietary factors, gut microbiome and colorectal cancer: a new era of colorectal cancer prevention. Future Oncol 2020; 16:293-306. [PMID: 32067473 DOI: 10.2217/fon-2019-0552] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Colorectal cancer is the third most common cancer in the world and its incidence is on the rise. Dietary intervention has emerged as an attractive strategy to curtail its occurrence and progression. Diet is known to influence the gut microbiome, as dietary factors and gut bacteria can act in concert to cause or protect from colorectal cancer. Several studies have presented evidence for such interactions and have pointed out the different ways by which the diet and gut microbiome can be altered to produce beneficial effects. This review article aims to summarize the interrelationship between diet, gut flora and colorectal cancer so that a better preventive approach can be applied.
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Affiliation(s)
- Poshita Kumari Seesaha
- Oncology Department, The First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, PR China
| | - Xiaofeng Chen
- Oncology Department, The First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, PR China
| | - Xiaofeng Wu
- Hepatobiliary Center, The First Affiliated Hospital, Nanjing Medical University, Jiangsu, PR China
| | - Hongxia Xu
- Department of Nutrition, Third Military Medical University Daping Hospital & Research Institute of Surgery, Chongqing 400042, Sichuan, PR China
| | - Changxian Li
- Hepatobiliary Center, The First Affiliated Hospital, Nanjing Medical University, Jiangsu, PR China
| | - Yogesh Jheengut
- Oncology Department, The First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, PR China
| | - Fengjiao Zhao
- Oncology Department, The First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, PR China
| | - Li Liu
- School of Public Health, Guizhou Medical University, Guiyang, PR China
| | - Diancai Zhang
- Department of General Surgery, The First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, PR China
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Deehan EC, Yang C, Perez-Muñoz ME, Nguyen NK, Cheng CC, Triador L, Zhang Z, Bakal JA, Walter J. Precision Microbiome Modulation with Discrete Dietary Fiber Structures Directs Short-Chain Fatty Acid Production. Cell Host Microbe 2020; 27:389-404.e6. [PMID: 32004499 DOI: 10.1016/j.chom.2020.01.006] [Citation(s) in RCA: 280] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/12/2019] [Accepted: 01/14/2020] [Indexed: 12/21/2022]
Abstract
Dietary fibers (DFs) impact the gut microbiome in ways often considered beneficial. However, it is unknown if precise and predictable manipulations of the gut microbiota, and especially its metabolic activity, can be achieved through DFs with discrete chemical structures. Using a dose-response trial with three type-IV resistant starches (RS4s) in healthy humans, we found that crystalline and phosphate cross-linked starch structures induce divergent and highly specific effects on microbiome composition that are linked to directed shifts in the output of either propionate or butyrate. The dominant RS4-induced effects were remarkably consistent within treatment groups, dose-dependent plateauing at 35 g/day, and can be explained by substrate-specific binding and utilization of the RS4s by bacterial taxa with different pathways for starch metabolism. Overall, these findings support the potential of using discrete DF structures to achieve targeted manipulations of the gut microbiome and its metabolic functions relevant to health.
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Affiliation(s)
- Edward C Deehan
- Department of Agricultural, Nutritional and Food Science, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Chen Yang
- Department of Agricultural, Nutritional and Food Science, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Maria Elisa Perez-Muñoz
- Department of Agricultural, Nutritional and Food Science, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Nguyen K Nguyen
- Department of Agricultural, Nutritional and Food Science, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Christopher C Cheng
- Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Lucila Triador
- Department of Medicine, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Zhengxiao Zhang
- Department of Medicine, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Jeffrey A Bakal
- Patient Health Outcomes Research and Clinical Effectiveness Unit, Division of General Internal Medicine, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Jens Walter
- Department of Agricultural, Nutritional and Food Science, University of Alberta, Edmonton, AB T6G 2E1, Canada; Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E1, Canada; APC Microbiome Ireland, School of Microbiology, Department of Medicine, and APC Microbiome Institute, University College Cork - National University of Ireland, Cork T12 YT20, Ireland.
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118
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Grembi JA, Nguyen LH, Haggerty TD, Gardner CD, Holmes SP, Parsonnet J. Gut microbiota plasticity is correlated with sustained weight loss on a low-carb or low-fat dietary intervention. Sci Rep 2020; 10:1405. [PMID: 31996717 PMCID: PMC6989501 DOI: 10.1038/s41598-020-58000-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 01/08/2020] [Indexed: 01/05/2023] Open
Abstract
While low-carbohydrate and low-fat diets can both lead to weight-loss, a substantial variability in achieved long-term outcomes exists among obese but otherwise healthy adults. We examined the hypothesis that structural differences in the gut microbiota explain a portion of variability in weight-loss using two cohorts of obese adults enrolled in the Diet Intervention Examining The Factors Interacting with Treatment Success (DIETFITS) study. A total of 161 pre-diet fecal samples were sequenced from a discovery cohort (n = 66) and 106 from a validation cohort (n = 56). An additional 157 fecal samples were sequenced from the discovery cohort after 10 weeks of dietary intervention. We found no specific bacterial signatures associated with weight loss that were consistent across both cohorts. However, the gut microbiota plasticity (i.e. variability), was correlated with long-term (12-month) weight loss in a diet-dependent manner; on the low-fat diet subjects with higher pre-diet daily plasticity had higher sustained weight loss, whereas on the low-carbohydrate diet those with higher plasticity over 10 weeks of dieting had higher 12-month weight loss. Our findings suggest the potential importance of gut microbiota plasticity for sustained weight-loss. We highlight the advantages of evaluating kinetic trends and assessing reproducibility in studies of the gut microbiota.
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Affiliation(s)
- Jessica A Grembi
- Department of Civil and Environmental Engineering, Stanford University, 318 Campus Drive E250 Clark Center, Stanford, CA, 94305, United States.
- Department of Medicine, Stanford University School of Medicine, 291 Campus Drive, Stanford, CA, 94305, United States.
| | - Lan H Nguyen
- Institute for Computational and Mathematical Engineering, Stanford University, 475 Via Ortega, Stanford, CA, 94305, United States
| | - Thomas D Haggerty
- Department of Medicine, Stanford University School of Medicine, 291 Campus Drive, Stanford, CA, 94305, United States
| | - Christopher D Gardner
- Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine, 1265 Welch Road, Stanford, CA, 94305, United States
| | - Susan P Holmes
- Department of Statistics, Stanford University, 390 Serra Mall, Stanford, CA, 94305, United States
| | - Julie Parsonnet
- Department of Medicine, Stanford University School of Medicine, 291 Campus Drive, Stanford, CA, 94305, United States
- Department of Health Research and Policy, Stanford University School of Medicine, 150 Governor's Ln, Stanford, CA, 94305, United States
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119
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Gut Microbiota Profile of Obese Diabetic Women Submitted to Roux-en-Y Gastric Bypass and Its Association with Food Intake and Postoperative Diabetes Remission. Nutrients 2020; 12:nu12020278. [PMID: 31973130 PMCID: PMC7071117 DOI: 10.3390/nu12020278] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/07/2019] [Accepted: 12/17/2019] [Indexed: 02/07/2023] Open
Abstract
Gut microbiota composition is influenced by environmental factors and has been shown to impact body metabolism. Objective: To assess the gut microbiota profile before and after Roux-en-Y gastric bypass (RYGB) and the correlation with food intake and postoperative type 2 diabetes remission (T2Dr). Design: Gut microbiota profile from obese diabetic women was evaluated before (n = 25) and 3 (n = 20) and 12 months (n = 14) after RYGB, using MiSeq Illumina-based V4 bacterial 16S rRNA gene profiling. Data on food intake (7-day record) and T2Dr (American Diabetes Association (ADA) criteria) were recorded. Results: Preoperatively, the abundance of five bacteria genera differed between patients with (57%) and without T2Dr (p < 0.050). Preoperative gut bacteria genus signature was able to predict the T2Dr status with 0.94 accuracy ROC curve (receiver operating characteristic curve). Postoperatively (vs. preoperative), the relative abundance of some gut bacteria genera changed, the gut microbial richness increased, and the Firmicutes to Bacteroidetes ratio (rFB) decreased (p < 0.05) regardless of T2Dr. Richness levels was correlated with dietary profile pre and postoperatively, mainly displaying positive and inverse correlations with fiber and lipid intakes, respectively (p < 0.05). Conclusions: Gut microbiota profile was influenced by RYGB and correlated with diet and T2Dr preoperatively, suggesting the possibility to assess its composition to predict postoperative T2Dr.
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120
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Eker ME, Aaby K, Budic-Leto I, Rimac Brnčić S, El SN, Karakaya S, Simsek S, Manach C, Wiczkowski W, de Pascual-Teresa S. A Review of Factors Affecting Anthocyanin Bioavailability: Possible Implications for the Inter-Individual Variability. Foods 2019; 9:E2. [PMID: 31861362 PMCID: PMC7023094 DOI: 10.3390/foods9010002] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/11/2019] [Accepted: 12/15/2019] [Indexed: 12/11/2022] Open
Abstract
Anthocyanins are dietary bioactive compounds showing a range of beneficial effects against cardiovascular, neurological, and eye conditions. However, there is, as for other bioactive compounds in food, a high inter and intra-individual variation in the response to anthocyanin intake that in many cases leads to contradictory results in human trials. This variability could be caused at two levels, one at the bioavailability level and the other at the effect and mechanisms of action. In this context, we have thoroughly reviewed the scientific literature on anthocyanins variability caused by variation in bioavailability. Based on the literature reviewed, we have concluded that the variability in anthocyanins bioavailability might be produced by the lack of homogeneity introduced at three different levels: food matrix and food processing, enzymes involved in anthocyanin metabolism and transport, and anthocyanin metabolizing gut microbiota. However, it should be noted that the literature on anthocyanins bioavailability considering inter or intra-individual variability is still very scarce, which makes it difficult to reach any firm conclusion on the main metabolizing enzymes or bacteria that would be responsible for the variability in anthocyanin bioavailability.
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Affiliation(s)
- Merve Eda Eker
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Jose Antonio Novais 10, 28040 Madrid, Spain;
- Department of Food Engineering, Ege University, Izmir 35100, Turkey; (S.N.E.); (S.K.); (S.S.)
| | - Kjersti Aaby
- Nofima, Norwegian Institute of Food, Fisheries and Aquaculture Research, N-1430 Ås, Norway;
| | - Irena Budic-Leto
- Institute for Adriatic Crops and Karst Reclamation, Put Duilova 11, 21000 Split, Croatia;
| | - Suzana Rimac Brnčić
- Faculty of food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia;
| | - Sedef Nehir El
- Department of Food Engineering, Ege University, Izmir 35100, Turkey; (S.N.E.); (S.K.); (S.S.)
| | - Sibel Karakaya
- Department of Food Engineering, Ege University, Izmir 35100, Turkey; (S.N.E.); (S.K.); (S.S.)
| | - Sebnem Simsek
- Department of Food Engineering, Ege University, Izmir 35100, Turkey; (S.N.E.); (S.K.); (S.S.)
| | - Claudine Manach
- INRA, Université Clermont-Auvergne, Human Nutrition Unit, CRNH Auvergne, F-63000 Clermont-Ferrand, France;
| | - Wieslaw Wiczkowski
- Institute of Animal Reproduction and Food Research. Polish Academy of Sciences, 10-748 Olsztyn, Poland;
| | - Sonia de Pascual-Teresa
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Jose Antonio Novais 10, 28040 Madrid, Spain;
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121
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Hughes RL, Kable ME, Marco M, Keim NL. The Role of the Gut Microbiome in Predicting Response to Diet and the Development of Precision Nutrition Models. Part II: Results. Adv Nutr 2019; 10:979-998. [PMID: 31225587 PMCID: PMC6855959 DOI: 10.1093/advances/nmz049] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/28/2019] [Accepted: 04/12/2019] [Indexed: 12/17/2022] Open
Abstract
The gut microbiota is increasingly implicated in the health and metabolism of its human host. The host's diet is a major component influencing the composition and function of the gut microbiota, and mounting evidence suggests that the composition and function of the gut microbiota influence the host's metabolic response to diet. This effect of the gut microbiota on personalized dietary response is a growing focus of precision nutrition research and may inform the effort to tailor dietary advice to the individual. Because the gut microbiota has been shown to be malleable to some extent, it may also allow for therapeutic alterations of the gut microbiota in order to alter response to certain dietary components. This article is the second in a 2-part review of the current research in the field of precision nutrition incorporating the gut microbiota into studies investigating interindividual variability in response to diet. Part I reviews the methods used by researchers to design and carry out such studies as well as analyze the results subsequently obtained. Part II reviews the findings of these studies and discusses the gaps in our current knowledge and directions for future research. The studies reviewed provide the current understanding in this field of research and a foundation from which we may build, utilizing and expanding upon the methods and results they present to inform future studies.
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Affiliation(s)
- Riley L Hughes
- Departments of Nutrition, Food Science & Technology, University of California, Davis, CA
| | - Mary E Kable
- Departments of Nutrition, Food Science & Technology, University of California, Davis, CA,Departments of Immunity and Disease Prevention, Obesity and Metabolism, Western Human Nutrition Research Center, Agricultural Research Service, USDA, Davis, CA
| | - Maria Marco
- Food Science & Technology, University of California, Davis, CA
| | - Nancy L Keim
- Departments of Nutrition, Food Science & Technology, University of California, Davis, CA,Obesity and Metabolism, Western Human Nutrition Research Center, Agricultural Research Service, USDA, Davis, CA,Address correspondence to NLK (e-mail: )
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122
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García-Mantrana I, Calatayud M, Romo-Vaquero M, Espín JC, Selma MV, Collado MC. Urolithin Metabotypes Can Determine the Modulation of Gut Microbiota in Healthy Individuals by Tracking Walnuts Consumption over Three Days. Nutrients 2019; 11:E2483. [PMID: 31623169 PMCID: PMC6835957 DOI: 10.3390/nu11102483] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/08/2019] [Accepted: 10/10/2019] [Indexed: 12/27/2022] Open
Abstract
Walnuts are rich in polyphenols ellagitannins, modulate gut microbiota (GM), and exert health benefits after long-term consumption. The metabolism of ellagitannins to urolithins via GM depends on urolithin metabotypes (UM-A, -B, or -0), which have been reported to predict host responsiveness to a polyphenol-rich intervention. This study aims to assess whether UMs were associated with differential GM modulation after short-term walnut consumption. In this study, 27 healthy individuals consumed 33 g of peeled raw walnuts over three days. GM profiling was determined using 16S rRNA illumina sequencing and specific real-time quantitative polymerase chain reactions (qPCRs), as well as microbial activity using short-chain fatty acids analysis in stool samples. UMs stratification of volunteers was assessed using ultra performance liquid chromatography-electro spray ionization-quadrupole time of flight-mass spectrometry (UPLC-ESI-QTOF-MS) analysis of urolithins in urine samples. The gut microbiota associated with UM-B was more sensitive to the walnut intervention. Blautia, Bifidobacterium, and members of the Coriobacteriaceae family, including Gordonibacter, increased exclusively in UM-B subjects, while some members of the Lachnospiraceae family decreased in UM-A individuals. Coprococcus and Collinsella increased in both UMs and higher acetate and propionate production resulted after walnuts intake. Our results show that walnuts consumption after only three days modulates GM in a urolithin metabotype-depending manner and increases the production of short-chain fatty acids (SCFA).
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Affiliation(s)
- Izaskun García-Mantrana
- Department of Biotechnology, Institute of Agrochemistry and Food Technology, IATA-CSIC, 46980 Valencia, Spain.
| | - Marta Calatayud
- Department of Biotechnology, Center for Microbial Ecology and Technology (CMET), Ghent University, 9000 Gent, Belgium.
| | - María Romo-Vaquero
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, 30100 Murcia, Spain.
| | - Juan Carlos Espín
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, 30100 Murcia, Spain.
| | - María V Selma
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, CEBAS-CSIC, 30100 Murcia, Spain.
| | - María Carmen Collado
- Department of Biotechnology, Institute of Agrochemistry and Food Technology, IATA-CSIC, 46980 Valencia, Spain.
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De Caro C, Iannone LF, Citraro R, Striano P, De Sarro G, Constanti A, Cryan JF, Russo E. Can we 'seize' the gut microbiota to treat epilepsy? Neurosci Biobehav Rev 2019; 107:750-764. [PMID: 31626816 DOI: 10.1016/j.neubiorev.2019.10.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/03/2019] [Accepted: 10/04/2019] [Indexed: 02/08/2023]
Abstract
The gut-microbiota, the complex intestinal microbial ecosystem essential to health, is an emerging concept in medicine. Several studies demonstrate a microbiota-gut-brain bidirectional connection via neural, endocrine, metabolic and immune pathways. Accordingly, the gut microbiota has a crucial role in modulating intestinal permeability, to alter local/peripheral immune responses and in production of essential metabolites and neurotransmitters. Its alterations may consequently influence all these pathways that contribute to neuronal hyper-excitability and mirrored neuroinflammation in epilepsy and similarly other neurological conditions. Indeed, pre- and clinical studies support the role of the microbiome in pathogenesis, seizure modulation and responses to treatment in epilepsy. Up to now, researchers have focussed attention above all on the brain to develop antiepileptic treatments, but considering the microbiome, could extend our possibilities for developing novel therapies in the future. We provide here a comprehensive overview of the available data on the potential role of gut microbiota in the physiopathology and therapy of epilepsy and the supposed underlying mechanisms.
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Affiliation(s)
- Carmen De Caro
- Science of Health Department, School of Medicine, University Magna Graecia, Catanzaro, Italy
| | - Luigi Francesco Iannone
- Science of Health Department, School of Medicine, University Magna Graecia, Catanzaro, Italy
| | - Rita Citraro
- Science of Health Department, School of Medicine, University Magna Graecia, Catanzaro, Italy
| | - Pasquale Striano
- Paediatric Neurology and Muscular Diseases Unit, DINOGMI-Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, IRCCS "G. Gaslini" Institute, Genova, Italy
| | - Giovambattista De Sarro
- Science of Health Department, School of Medicine, University Magna Graecia, Catanzaro, Italy
| | - Andrew Constanti
- Department of Pharmacology, UCL School of Pharmacy, 29/39 Brunswick Square, London, United Kingdom
| | - John F Cryan
- UK.APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Emilio Russo
- Science of Health Department, School of Medicine, University Magna Graecia, Catanzaro, Italy.
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124
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Affiliation(s)
- H. M. Roager
- Department of Nutrition, Exercise and Sports University of Copenhagen Frederiksberg Denmark
| | - L. O. Dragsted
- Department of Nutrition, Exercise and Sports University of Copenhagen Frederiksberg Denmark
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125
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Abstract
AbstractPersonalised nutrition is at its simplest form the delivery of dietary advice at an individual level. Incorporating response to different diets has resulted in the concept of precision nutrition. Harnessing the metabolic phenotype to identify subgroups of individuals that respond differentially to dietary interventions is becoming a reality. More specifically, the classification of individuals in subgroups according to their metabolic profile is defined as metabotyping and this approach has been employed to successfully identify differential response to dietary interventions. Furthermore, the approach has been expanded to develop a framework for the delivery of targeted nutrition. The present review examines the application of the metabotype approach in nutrition research with a focus on developing personalised nutrition. Application of metabotyping in longitudinal studies demonstrates that metabotypes can be associated with cardiometabolic risk factors and diet-related diseases while application in interventions can identify metabotypes with differential responses. In general, there is strong evidence that metabolic phenotyping is a promising strategy to identify groups at risk and to potentially improve health promotion at a population level. Future work should verify if targeted nutrition can change behaviours and have an impact on health outcomes.
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126
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Kok CR, Gomez Quintero DF, Niyirora C, Rose D, Li A, Hutkins R. An In Vitro Enrichment Strategy for Formulating Synergistic Synbiotics. Appl Environ Microbiol 2019; 85:e01073-19. [PMID: 31201276 PMCID: PMC6677857 DOI: 10.1128/aem.01073-19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 06/06/2019] [Indexed: 12/23/2022] Open
Abstract
Research on the role of diet on gut and systemic health has led to considerable interest toward identifying novel therapeutic modulators of the gut microbiome, including the use of prebiotics and probiotics. However, various host responses have often been reported among many clinical trials. This is in part due to competitive exclusion as a result of the absence of ecological niches as well as host-mediated constraints via colonization resistance. In this research, we developed a novel in vitro enrichment (IVE) method for isolating autochthonous strains that can function as synergistic synbiotics and overcome these constraints. The method relied on stepwise in vitro fecal fermentations to enrich for and isolate Bifidobacterium strains that ferment the prebiotic xylooligosaccharide (XOS). We subsequently isolated Bifidobacterium longum subsp. longum CR15 and then tested its establishment in 20 unique fecal samples with or without XOS. The strain was established in up to 18 samples but only in the presence of XOS. Our findings revealed that the IVE method is suitable for isolating potential synergistic probiotic strains that possess the genetic and biochemical ability to ferment specific prebiotic substrates. The IVE method can be used as an initial high-throughput screen for probiotic selection and isolation prior to further characterization and in vivo tests.IMPORTANCE This study describes an in vitro enrichment method to formulate synergistic synbiotics that have potential for establishing autochthonous strains across multiple individuals. The rationale for this approach-that the chance of survival of a bacterial strain is improved by providing it with its required resources-is based on classic ecological theory. From these experiments, a human-derived strain, Bifidobacterium longum subsp. longum CR15, was identified as a xylooligosaccharide (XOS) fermenter in fecal environments and displayed synergistic effects in vitro The high rate of strain establishment observed in this study provides a basis for using synergistic synbiotics to overcome the responder/nonresponder phenomenon that occurs frequently in clinical trials with probiotic and prebiotic interventions. In addition, this approach can be applied in other protocols that require enrichment of specific bacterial populations prior to strain isolation.
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Affiliation(s)
- Car Reen Kok
- Department of Food Science and Technology, Nebraska Food for Health Center, Lincoln, Nebraska, USA
| | | | - Clement Niyirora
- Department of Food Science and Technology, Nebraska Food for Health Center, Lincoln, Nebraska, USA
| | - Devin Rose
- Department of Food Science and Technology, Nebraska Food for Health Center, Lincoln, Nebraska, USA
| | - Amanda Li
- Department of Food Science and Technology, Nebraska Food for Health Center, Lincoln, Nebraska, USA
| | - Robert Hutkins
- Department of Food Science and Technology, Nebraska Food for Health Center, Lincoln, Nebraska, USA
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Weber-Stadlbauer U, Meyer U. Challenges and opportunities of a-priori and a-posteriori variability in maternal immune activation models. Curr Opin Behav Sci 2019. [DOI: 10.1016/j.cobeha.2019.02.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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128
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Moreira-Rosário A, Marques C, Pinheiro H, Norberto S, Sintra D, Teixeira JA, Calhau C, Azevedo LF. Daily intake of wheat germ-enriched bread may promote a healthy gut bacterial microbiota: a randomised controlled trial. Eur J Nutr 2019; 59:1951-1961. [PMID: 31325040 DOI: 10.1007/s00394-019-02045-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 06/30/2019] [Indexed: 12/18/2022]
Abstract
PURPOSE Wheat bran fibre has a beneficial effect on gastrointestinal function, but evidence for wheat germ is scarce. Accordingly, we evaluated the effects of daily intake of wheat germ on gastrointestinal discomfort and gut microbiota by adding wheat germ to refined (white) wheat bread, the most consumed bread type. We hypothesised that an improvement in the composition of refined bread could beneficially affect intestinal health without compromising consumers' acceptance. METHODS Fifty-five healthy adults were recruited for a randomised, double-blind, crossover, controlled trial comprising two 4-week intervention periods separated by a 5-week washout stage. During the first 4-week period, one group consumed wheat bread enriched with 6 g of wheat germ and the control group consumed non-enriched wheat bread. RESULTS Wheat germ-enriched bread was well-appreciated and the number of participants that demonstrated minimal gastrointestinal improvements after wheat-germ intake was higher than in the control arm. Importantly, intake of wheat germ-enriched bread decreased the perceived gastrointestinal discomfort-related quality of life (subscale worries and concerns) over refined white bread. The improvements in the gastrointestinal function were accompanied by favourable changes in gut microbiota, increasing the number of Bacteroides spp. and Bifidobacterium spp. CONCLUSIONS Adding wheat germ to industrially made white bread without altering sensory properties may promote a healthy gut bacterial microbiota and the gastrointestinal health.
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Affiliation(s)
- André Moreira-Rosário
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal. .,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal.
| | - Cláudia Marques
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal.,Nutrition and Metabolism, NOVA Medical School, NOVA University of Lisbon, Lisbon, Portugal
| | - Helder Pinheiro
- Nutrition and Metabolism, NOVA Medical School, NOVA University of Lisbon, Lisbon, Portugal.,Infectious Diseases Service, Hospital Curry Cabral, Lisbon, Portugal
| | - Sónia Norberto
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal
| | - Diana Sintra
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal
| | - José António Teixeira
- Center of Biological Engineering, University of Minho, Campus of Gualtar, Braga, Portugal
| | - Conceição Calhau
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal.,Nutrition and Metabolism, NOVA Medical School, NOVA University of Lisbon, Lisbon, Portugal.,José de Mello Saúde by NOVA Medical School, University Unit of Lifestyle Medicine, Lisbon, Portugal
| | - Luís Filipe Azevedo
- Centre for Health Technology and Services Research (CINTESIS), Porto, Portugal.,Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
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129
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Ketogenic Diet and Microbiota: Friends or Enemies? Genes (Basel) 2019; 10:genes10070534. [PMID: 31311141 PMCID: PMC6678592 DOI: 10.3390/genes10070534] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 07/06/2019] [Accepted: 07/10/2019] [Indexed: 12/12/2022] Open
Abstract
Over the last years, a growing body of evidence suggests that gut microbial communities play a fundamental role in many aspects of human health and diseases. The gut microbiota is a very dynamic entity influenced by environment and nutritional behaviors. Considering the influence of such a microbial community on human health and its multiple mechanisms of action as the production of bioactive compounds, pathogens protection, energy homeostasis, nutrients metabolism and regulation of immunity, establishing the influences of different nutritional approach is of pivotal importance. The very low carbohydrate ketogenic diet is a very popular dietary approach used for different aims: from weight loss to neurological diseases. The aim of this review is to dissect the complex interactions between ketogenic diet and gut microbiota and how this large network may influence human health.
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130
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Cherbuy C, Bellet D, Robert V, Mayeur C, Schwiertz A, Langella P. Modulation of the Caecal Gut Microbiota of Mice by Dietary Supplement Containing Resistant Starch: Impact Is Donor-Dependent. Front Microbiol 2019; 10:1234. [PMID: 31244792 PMCID: PMC6563722 DOI: 10.3389/fmicb.2019.01234] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 05/17/2019] [Indexed: 12/27/2022] Open
Abstract
Alterations in the gut microbiota have been associated with a wide range of pathologies and conditions. Maintaining a well-balanced microbiota is a key factor in sustaining good health. Our aim was to investigate the impact of a resistant starch-containing dietary supplement (SymbioIntest®) on the composition of the human gut microbiota and on intestinal short chain fatty acid (SCFA) concentration. Human microbiota-associated mice were used. Ex-germ-free mice were inoculated with fecal suspensions from four different donors. Three weeks later, the mice were orally gavaged for 1 month with either a daily dose of 10 mg of SymbioIntest® or the vehicle (water) for the negative control group. The composition of the microbiota and SCFA levels were analyzed by 16S rRNA gene sequencing and gas chromatography, respectively. In three groups of mice, SymbioIntest® supplementation increased the concentration of caecal butyrate. This was in conjunction with a remodeling of the gut microbiota. OTUs belonging to the Bacteroidaceae, Porphyromonadaceae, Lachnospiraceae and Ruminococcaceae families were affected. In two groups of mice the greatest changes in OTUs were seen in the Faecalibacterium genus. The supplementation’s highest impact was observed in mice inoculated with gut microbiota containing a lower number of Ruminococcaceae and Faecalibacterium and a higher number of Prevotellaceae. SymbioIntest® supplementation elicited a beneficial effect on the healthy adult gut microbiota by increasing caecal butyrate production and health-promoting taxa. We highlight the fact that screening the gut microbiota may be used for predicting individualized responses to dietary interventions and thus developing personalized nutritional strategies.
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Affiliation(s)
- Claire Cherbuy
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Déborah Bellet
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Véronique Robert
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Camille Mayeur
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | | | - Philippe Langella
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
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131
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Crakes KR, Jiang G. Gut Microbiome Alterations During HIV/SIV Infection: Implications for HIV Cure. Front Microbiol 2019; 10:1104. [PMID: 31191468 PMCID: PMC6539195 DOI: 10.3389/fmicb.2019.01104] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/30/2019] [Indexed: 12/11/2022] Open
Abstract
Gut mucosal damage, associated with Human Immunodeficiency Virus-1 (HIV) infection, is characterized by depletion in CD4+ T cells and persistent immune activation as a result of early epithelial barrier disruption and systemic translocation of microbial products. Unique approaches in studying both HIV infection in human patients and Simian Immunodeficiency Virus (SIV) infection in rhesus macaques have provided critical evidence for the pathogenesis and treatment of HIV/AIDS. While there is vast resemblance between SIV and HIV infection, the development of gut dysbiosis attributed to HIV infection in chronically infected patients has not been consistently reported in SIV infection in the non-human primate model of AIDS, raising concerns for the translatability of gut microbiome studies in rhesus macaques. This review outlines our current understanding of gut microbial signatures across various stages of HIV versus SIV infection, with an emphasis on the impact of microbiome-based therapies in restoring gut mucosal immunity as well as their translational potential to supplement current HIV cure efforts.
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Affiliation(s)
- Katti R. Crakes
- Department of Medical Microbiology and Immunology, University of California, Davis, Davis, CA, United States
| | - Guochun Jiang
- Department of Biochemistry and Biophysics, Institute for Global Health & Infectious Diseases, UNC HIV Cure Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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132
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Kårlund A, Gómez-Gallego C, Turpeinen AM, Palo-Oja OM, El-Nezami H, Kolehmainen M. Protein Supplements and Their Relation with Nutrition, Microbiota Composition and Health: Is More Protein Always Better for Sportspeople? Nutrients 2019; 11:nu11040829. [PMID: 31013719 PMCID: PMC6521232 DOI: 10.3390/nu11040829] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/05/2019] [Accepted: 04/08/2019] [Indexed: 12/27/2022] Open
Abstract
Sports nutrition products are developed and targeted mainly for athletes to improve their nutrient intake, performance, and muscle growth. The fastest growing consumer groups for these products are recreational sportspeople and lifestyle users. Although athletes may have elevated physiological protein requirements and they may benefit from dietary supplements, the evidence regarding the role of dietary protein and supplements in the nutrition of recreational sportspeople and sedentary populations is somewhat complex and contradictory. In high-protein diets, more undigested protein-derived constituents end up in the large intestine compared to moderate or low-protein diets, and hence, more bacterial amino acid metabolism takes place in the colon, having both positive and negative systemic and metabolic effects on the host. The aim of the present review is to summarize the impact of the high-protein products and diets on nutrition and health, in sportspeople and in sedentary consumers. We are opening the debate about the current protein intake recommendations, with an emphasis on evidence-based effects on intestinal microbiota and personalized guidelines regarding protein and amino acid supplementation in sportspeople and lifestyle consumers.
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Affiliation(s)
- Anna Kårlund
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland.
| | - Carlos Gómez-Gallego
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland.
| | | | - Outi-Maaria Palo-Oja
- Business School, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland.
| | - Hani El-Nezami
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland.
- School of Biological Sciences, University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, China.
| | - Marjukka Kolehmainen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland.
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133
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Hamada T, Nowak JA, Milner DA, Song M, Ogino S. Integration of microbiology, molecular pathology, and epidemiology: a new paradigm to explore the pathogenesis of microbiome-driven neoplasms. J Pathol 2019; 247:615-628. [PMID: 30632609 PMCID: PMC6509405 DOI: 10.1002/path.5236] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/24/2018] [Accepted: 01/06/2019] [Indexed: 02/06/2023]
Abstract
Molecular pathological epidemiology (MPE) is an integrative transdisciplinary field that addresses heterogeneous effects of exogenous and endogenous factors (collectively termed 'exposures'), including microorganisms, on disease occurrence and consequences, utilising molecular pathological signatures of the disease. In parallel with the paradigm of precision medicine, findings from MPE research can provide aetiological insights into tailored strategies of disease prevention and treatment. Due to the availability of molecular pathological tests on tumours, the MPE approach has been utilised predominantly in research on cancers including breast, lung, prostate, and colorectal carcinomas. Mounting evidence indicates that the microbiome (inclusive of viruses, bacteria, fungi, and parasites) plays an important role in a variety of human diseases including neoplasms. An alteration of the microbiome may be not only a cause of neoplasia but also an informative biomarker that indicates or mediates the association of an epidemiological exposure with health conditions and outcomes. To adequately educate and train investigators in this emerging area, we herein propose the integration of microbiology into the MPE model (termed 'microbiology-MPE'), which could improve our understanding of the complex interactions of environment, tumour cells, the immune system, and microbes in the tumour microenvironment during the carcinogenic process. Using this approach, we can examine how lifestyle factors, dietary patterns, medications, environmental exposures, and germline genetics influence cancer development and progression through impacting the microbial communities in the human body. Further integration of other disciplines (e.g. pharmacology, immunology, nutrition) into microbiology-MPE would expand this developing research frontier. With the advent of high-throughput next-generation sequencing technologies, researchers now have increasing access to large-scale metagenomics as well as other omics data (e.g. genomics, epigenomics, proteomics, and metabolomics) in population-based research. The integrative field of microbiology-MPE will open new opportunities for personalised medicine and public health. Copyright © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Tsuyoshi Hamada
- Department of Oncologic Pathology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Jonathan A Nowak
- Department of Pathology Program in MPE Molecular Pathological Epidemiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Danny A Milner
- American Society for Clinical Pathology, Chicago, Illinois, USA
| | - Mingyang Song
- Departments of Epidemiology and Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Shuji Ogino
- Department of Oncologic Pathology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts, USA
- Department of Pathology Program in MPE Molecular Pathological Epidemiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts, USA
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134
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Genetic Risk Score Predictive of the Plasma Triglyceride Response to an Omega-3 Fatty Acid Supplementation in a Mexican Population. Nutrients 2019; 11:nu11040737. [PMID: 30934900 PMCID: PMC6521301 DOI: 10.3390/nu11040737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/26/2019] [Accepted: 03/28/2019] [Indexed: 12/24/2022] Open
Abstract
Our group built a genetic risk score (GRS) of the plasma triglyceride (TG) response to an omega-3 (n-3) fatty acid (FA) supplementation in Caucasian Canadians that explained 21.53% of the TG variance. The objective was to refine the GRS by fine mapping and to test its association with the TG response in young Mexican adults. A total of 191 participants underwent a 6-week n-3 FA supplementation providing 2.7g/day of docosahexaenoic and eicosapentaenoic acids. Using quantitative polymerase chain reaction (PCR), 103 single-nucleotide polymorphisms (SNPs) were genotyped. A stepwise regression adjusted for age, sex, and body mass index (BMI) was used to select the strongest SNPs to include in the genetic risk model. A GRS was calculated from the sum of at-risk alleles. The contribution of the GRS to the TG response was assessed by ANCOVA with age, sex, and BMI included in the model. Several differences in allele frequency were observed between Canadians and Mexicans. Five lead SNPs were included in the genetic risk model, in which the GRS accounted for 11.01% of the variance of the TG response (p < 0.0001). These findings highlight the important contribution of genetic factors to the heterogeneity of the TG response to an n-3 FA supplementation among Mexicans.
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135
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Lazar V, Ditu LM, Pircalabioru GG, Picu A, Petcu L, Cucu N, Chifiriuc MC. Gut Microbiota, Host Organism, and Diet Trialogue in Diabetes and Obesity. Front Nutr 2019; 6:21. [PMID: 30931309 PMCID: PMC6424913 DOI: 10.3389/fnut.2019.00021] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 02/13/2019] [Indexed: 12/12/2022] Open
Abstract
The gastrointestinal tract with its microbiota is a complex, open, and integrated ecosystem with a high environmental exposure. It is widely accepted that the healthy gut microbiotais essential for host homeostasis and immunostasis, harboring an enormous number and variety of microorganisms and genes tailored by hundreds of exogenous and intrinsic host factors. The occurrence of dysbiosis may contribute to host vulnerability and progression to a large spectrum of infectious and non-communicable diseases, including diabetes and obesity, two metabolic disorders that are showing an endemic trend nowadays. There is an urgent need to develop efficient strategies to prevent and treat metabolic disorders such as diabetes and obesity which are often associated with serious complications. In this paper, we give an overview on the implications of gut microbiota in diabesity, with a focus on the triangle gut microbiota—diet-host metabolism and on the way to manipulate the gut microbial ecosystem toward achieving novel diagnosis and predictive biomarkers with the final goal of reestablishing the healthy metabolic condition. The current research data regarding the precision/personalized nutrition suggest that dietary interventions, including administration of pre-, pro-, and syn-biotics, as well as antibiotic treatment should be individually tailored to prevent chronic diseases based on the genetic background, food and beverage consumption, nutrient intake, microbiome, metabolome, and other omic profiles.
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Affiliation(s)
- Veronica Lazar
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Bucharest, Romania.,Earth, Environmental and Life Sciences Section, Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania
| | - Lia-Mara Ditu
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Bucharest, Romania.,Earth, Environmental and Life Sciences Section, Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania
| | - Gratiela G Pircalabioru
- Earth, Environmental and Life Sciences Section, Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania
| | - Ariana Picu
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Bucharest, Romania.,National Institute for Diabetes, Nutrition and Metabolic Diseases Prof. Dr. N. Paulescu, Bucharest, Romania
| | - Laura Petcu
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Bucharest, Romania.,National Institute for Diabetes, Nutrition and Metabolic Diseases Prof. Dr. N. Paulescu, Bucharest, Romania
| | - Natalia Cucu
- Fundeni Clinical Institute, Bucharest, Romania.,Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, Bucharest, Romania.,Earth, Environmental and Life Sciences Section, Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania
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136
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Jaimes JD, Jarosova V, Vesely O, Mekadim C, Mrazek J, Marsik P, Killer J, Smejkal K, Kloucek P, Havlik J. Effect of Selected Stilbenoids on Human Fecal Microbiota. Molecules 2019; 24:E744. [PMID: 30791436 PMCID: PMC6412329 DOI: 10.3390/molecules24040744] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/08/2019] [Accepted: 02/15/2019] [Indexed: 12/23/2022] Open
Abstract
Dietary phenolics or polyphenols are mostly metabolized by the human gut microbiota. These metabolites appear to confer the beneficial health effects attributed to phenolics. Microbial composition affects the type of metabolites produced. Reciprocally, phenolics modulate microbial composition. Understanding this relationship could be used to positively impact health by phenolic supplementation and thus create favorable colonic conditions. This study explored the effect of six stilbenoids (batatasin III, oxyresveratrol, piceatannol, pinostilbene, resveratrol, thunalbene) on the gut microbiota composition. Stilbenoids were anaerobically fermented with fecal bacteria from four donors, samples were collected at 0 and 24 h, and effects on the microbiota were assessed by 16S rRNA gene sequencing. Statistical tests identified affected microbes at three taxonomic levels. Observed microbial composition modulation by stilbenoids included a decrease in the Firmicutes to Bacteroidetes ratio, a decrease in the relative abundance of strains from the genus Clostridium, and effects on the family Lachnospiraceae. A frequently observed effect was a further decrease of the relative abundance when compared to the control. An opposite effect to the control was observed for Faecalibacterium prausnitzii, whose relative abundance increased. Observed effects were more frequently attributed to resveratrol and piceatannol, followed by thunalbene and batatasin III.
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Affiliation(s)
- Jose D Jaimes
- Department of Food Quality and Safety, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
| | - Veronika Jarosova
- Department of Food Quality and Safety, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
- Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
| | - Ondrej Vesely
- Department of Food Quality and Safety, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
| | - Chahrazed Mekadim
- Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
- Institute of Animal Physiology and Genetics, CAS, v.v.i., Videnska 1083, 14220 Prague, Czech Republic.
| | - Jakub Mrazek
- Institute of Animal Physiology and Genetics, CAS, v.v.i., Videnska 1083, 14220 Prague, Czech Republic.
| | - Petr Marsik
- Department of Food Quality and Safety, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
| | - Jiri Killer
- Institute of Animal Physiology and Genetics, CAS, v.v.i., Videnska 1083, 14220 Prague, Czech Republic.
| | - Karel Smejkal
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1946/1, 61242 Brno, Czech Republic.
| | - Pavel Kloucek
- Department of Food Quality and Safety, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
| | - Jaroslav Havlik
- Department of Food Quality and Safety, Czech University of Life Sciences Prague, Kamycka 129, 16500 Prague 6-Suchdol, Czech Republic.
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137
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Ajibola O, Rowan AD, Ogedengbe CO, Mshelia MB, Cabral DJ, Eze AA, Obaro S, Belenky P. Urogenital schistosomiasis is associated with signatures of microbiome dysbiosis in Nigerian adolescents. Sci Rep 2019; 9:829. [PMID: 30696838 PMCID: PMC6351658 DOI: 10.1038/s41598-018-36709-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 11/25/2018] [Indexed: 12/11/2022] Open
Abstract
Urogenital schistosomiasis is a neglected tropical disease caused by the parasite Schistosoma haematobium, which resides in the vasculature surrounding the urogenital system. Previous work has suggested that helminthic infections can affect the intestinal microbiome, and we hypothesized that S. haematobium infection could result in an alteration of immune system-microbiota homeostasis and impact the composition of the gut microbiota. To address this question, we compared the fecal microbiomes of infected and uninfected schoolchildren from the Argungu Local Government Area of Kebbi State, Nigeria, detecting significant differences in community composition between the two groups. Most remarkably, we observed a decreased abundance of Firmicutes and increased abundance of Proteobacteria - a shift in community structure which has been previously associated with dysbiosis. More specifically, we detected a number of changes in lower taxa reminiscent of inflammation-associated dysbiosis, including decreases in Clostridiales and increases in Moraxellaceae, Veillonellaceae, Pasteurellaceae, and Desulfovibrionaceae. Functional potential analysis also revealed an enrichment in orthologs of urease, which has been linked to dysbiosis and inflammation. Overall, our analysis indicates that S. haematobium infection is associated with perturbations in the gut microbiota and may point to microbiome disruption as an additional consequence of schistosome infection.
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Affiliation(s)
- Olumide Ajibola
- Department of Microbiology, Faculty of Science, Federal University Birnin Kebbi, Birnin Kebbi, Kebbi State, Nigeria.
- Medical Research Council Unit The Gambia at London School of Hygiene and Tropical Medicine, Banjul, The Gambia.
| | - Aislinn D Rowan
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, USA
| | - Clement O Ogedengbe
- Department of Medical Biochemistry, College of Medicine, University of Nigeria - Enugu Campus, Enugu, Nigeria
| | - Mari B Mshelia
- Department of Microbiology, Faculty of Science, Federal University Birnin Kebbi, Birnin Kebbi, Kebbi State, Nigeria
| | - Damien J Cabral
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, USA
| | - Anthonius A Eze
- Department of Medical Biochemistry, College of Medicine, University of Nigeria - Enugu Campus, Enugu, Nigeria
| | - Stephen Obaro
- Division of Pediatric Infectious Diseases, University of Nebraska Medical Center, Omaha, NE, USA
- International Foundation Against Infectious Diseases in Nigeria, Department of Pediatrics, Bayero University Kano, Kano, Nigeria
| | - Peter Belenky
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, USA.
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138
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Mobeen F, Sharma V, Tulika P. Enterotype Variations of the Healthy Human Gut Microbiome in Different Geographical Regions. Bioinformation 2018; 14:560-573. [PMID: 31223215 PMCID: PMC6563668 DOI: 10.6026/97320630014560] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/16/2018] [Accepted: 11/18/2018] [Indexed: 02/07/2023] Open
Abstract
Enterotypes are used for classifying individuals based on the gut microbiome. A number of studies are available to find the Enterotypes in healthy individuals; however, most of them lack comparisons at the world level. We analyzed the healthy human gut microbiomes of 495 datasets available in the European Nucleotide Archive (ENA) database derived from fifteen countries from four continents. Firmicutes and Bacteroidetes were the two most abundant phyla in the healthy human gut, worldwide. A high ratio of Proteobacteriato Actinobacteria and a low abundance of Prevotella were identified as the indicators of IBD. Prevotella, Bacteroides, and Bifidobacterium were identified as the Enterotypes in the inter-continental comparisons. At the intra-continental level, two (Bacteroides and Ruminococcaceae), four (Faecalibacterium, Bacteroides, Prevotella, and Clostridiales), and two (Prevotella, Bacteroides/Bifidobacterium) Enterotypes were identified in the American, European, and Asian continents, respectively. In addition, a high abundance of the unknown genus of Ruminococcaeae was observed in the Colombian human gut microbiome. A substantial impact of the geographical distance was observed on human gut microbiome variations, demonstrating a cumulative effect of factors, including dietary habits, genetics, lifestyle, environment, and climate, etc.
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Affiliation(s)
- Fauzul Mobeen
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand 175005, Mandi, Himachal Pradesh, India
| | - Vikas Sharma
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand 175005, Mandi, Himachal Pradesh, India
| | - Prakash Tulika
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand 175005, Mandi, Himachal Pradesh, India
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139
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Abstract
Hydrogen plays a key role in many microbial metabolic pathways in the human gastrointestinal tract (GIT) that have an impact on human nutrition, health and wellbeing. Hydrogen is produced by many members of the GIT microbiota, and may be subsequently utilized by cross-feeding microbes for growth and in the production of larger molecules. Hydrogenotrophic microbes fall into three functional groups: sulfate-reducing bacteria, methanogenic archaea and acetogenic bacteria, which can convert hydrogen into hydrogen sulfide, methane and acetate, respectively. Despite different energy yields per molecule of hydrogen used between the functional groups, all three can coexist in the human GIT. The factors affecting the numerical balance of hydrogenotrophs in the GIT remain unconfirmed. There is increasing evidence linking both hydrogen sulfide and methane to GIT diseases such as irritable bowel syndrome, and strategies for the mitigation of such health problems through targeting of hydrogenotrophs constitute an important field for further investigation.
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Affiliation(s)
- Nick W. Smith
- AgResearch, Ruakura Research Centre, Hamilton, New Zealand,AgResearch, Grasslands Research Centre, Palmerston North, New Zealand,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Paul R. Shorten
- AgResearch, Ruakura Research Centre, Hamilton, New Zealand,Riddet Institute, Massey University, Palmerston North, New Zealand,CONTACT Paul R. Shorten AgResearch, Ruakura Research Centre, Private Bag 3123, Hamilton 3240, New Zealand
| | - Eric H. Altermann
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Nicole C. Roy
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand,Riddet Institute, Massey University, Palmerston North, New Zealand,High-Value Nutrition National Science Challenge, hosted by The University of Auckland, Auckland, New Zealand
| | - Warren C. McNabb
- Riddet Institute, Massey University, Palmerston North, New Zealand
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140
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The diabetes pandemic and associated infections: suggestions for clinical microbiology. ACTA ACUST UNITED AC 2018; 30:1-17. [PMID: 30662163 PMCID: PMC6319590 DOI: 10.1097/mrm.0000000000000155] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 10/08/2017] [Indexed: 12/15/2022]
Abstract
There are 425 million people with diabetes mellitus in the world. By 2045, this figure will grow to over 600 million. Diabetes mellitus is classified among noncommunicable diseases. Evidence points to a key role of microbes in diabetes mellitus, both as infectious agents associated with the diabetic status and as possible causative factors of diabetes mellitus. This review takes into account the different forms of diabetes mellitus, the genetic determinants that predispose to type 1 and type 2 diabetes mellitus (especially those with possible immunologic impact), the immune dysfunctions that have been documented in diabetes mellitus. Common infections occurring more frequently in diabetic vs. nondiabetic individuals are reviewed. Infectious agents that are suspected of playing an etiologic/triggering role in diabetes mellitus are presented, with emphasis on enteroviruses, the hygiene hypothesis, and the environment. Among biological agents possibly linked to diabetes mellitus, the gut microbiome, hepatitis C virus, and prion-like protein aggregates are discussed. Finally, preventive vaccines recommended in the management of diabetic patients are considered, including the bacillus calmette-Guerin vaccine that is being tested for type 1 diabetes mellitus. Evidence supports the notion that attenuation of immune defenses (both congenital and secondary to metabolic disturbances as well as to microangiopathy and neuropathy) makes diabetic people more prone to certain infections. Attentive microbiologic monitoring of diabetic patients is thus recommendable. As genetic predisposition cannot be changed, research needs to identify the biological agents that may have an etiologic role in diabetes mellitus, and to envisage curative and preventive ways to limit the diabetes pandemic.
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141
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Li L, Somerset S. Associations between Flavonoid Intakes and Gut Microbiota in a Group of Adults with Cystic Fibrosis. Nutrients 2018; 10:nu10091264. [PMID: 30205496 PMCID: PMC6164979 DOI: 10.3390/nu10091264] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 08/31/2018] [Accepted: 09/03/2018] [Indexed: 02/06/2023] Open
Abstract
Dietary flavonoid intakes can influence gut microbiota (GM), which in turn can affect immune function and host metabolism, both vital considerations in cystic fibrosis (CF) management. In CF, GM may be altered and link to CF respiratory events. This study explored the relationship between flavonoid intakes and GM in free-living adults with CF. Associations between the overall GM variations (unweighted and weighted UniFrac distances between pyrosequencing results of bacterial 16-ss rDNA from frozen faecal samples of sixteen CF adults) and standardised dietary flavonoid intakes (a validated flavonoid-specific food frequency questionnaire) were analysed using adonis tests. Flavonoid intakes that were significant at a false discovery rate (FDR) < 0.3 were subjected to Spearman correlation tests with standardised bacterial relative abundances (FDR < 0.3). Gallocatechin intakes (p = 0.047, q = 0.285) were associated with unweighted UniFrac distances. Intakes of apigenin (p = 0.028, q = 0.227) and kaempferol (p = 0.029, q = 0.227), and % flavonoid intake as flavones (p = 0.013, q = 0.227) and flavonols (p = 0.016, q = 0.227) (both excluding contribution of tea) were associated with weighted UniFrac distances. Among these, gallocatechin correlated with the genus Actinomyces and family Actinomycetaceae (Actinobacteria). Gallocatechin correlated negatively with class Coriobacteriia (Actinobacteria). Intakes of some flavonoids may be associated with GM variations with potential consequences for metabolism, immune function, and inflammation, which are important in CF lung disease and co-morbidity management.
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Affiliation(s)
- Li Li
- School of Medicine, Menzies Health Institute Queensland, Griffith University, 68 University Drive, Meadowbrook, QLD 4131, Australia.
- Faculty of Health, University of Canberra, University Drive, Bruce, ACT 2617, Australia.
| | - Shawn Somerset
- Faculty of Health, University of Canberra, University Drive, Bruce, ACT 2617, Australia.
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142
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Serena C, Ceperuelo-Mallafré V, Keiran N, Queipo-Ortuño MI, Bernal R, Gomez-Huelgas R, Urpi-Sarda M, Sabater M, Pérez-Brocal V, Andrés-Lacueva C, Moya A, Tinahones FJ, Fernández-Real JM, Vendrell J, Fernández-Veledo S. Elevated circulating levels of succinate in human obesity are linked to specific gut microbiota. THE ISME JOURNAL 2018; 12:1642-1657. [PMID: 29434314 PMCID: PMC6018807 DOI: 10.1038/s41396-018-0068-2] [Citation(s) in RCA: 233] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/21/2017] [Accepted: 01/12/2018] [Indexed: 02/07/2023]
Abstract
Gut microbiota-related metabolites are potential clinical biomarkers for cardiovascular disease (CVD). Circulating succinate, a metabolite produced by both microbiota and the host, is increased in hypertension, ischemic heart disease, and type 2 diabetes. We aimed to analyze systemic levels of succinate in obesity, a major risk factor for CVD, and its relationship with gut microbiome. We explored the association of circulating succinate with specific metagenomic signatures in cross-sectional and prospective cohorts of Caucasian Spanish subjects. Obesity was associated with elevated levels of circulating succinate concomitant with impaired glucose metabolism. This increase was associated with specific changes in gut microbiota related to succinate metabolism: a higher relative abundance of succinate-producing Prevotellaceae (P) and Veillonellaceae (V), and a lower relative abundance of succinate-consuming Odoribacteraceae (O) and Clostridaceae (C) in obese individuals, with the (P + V/O + C) ratio being a main determinant of plasma succinate. Weight loss intervention decreased (P + V/O + C) ratio coincident with the reduction in circulating succinate. In the spontaneous evolution after good dietary advice, alterations in circulating succinate levels were linked to specific metagenomic signatures associated with carbohydrate metabolism and energy production with independence of body weight change. Our data support the importance of microbe-microbe interactions for the metabolite signature of gut microbiome and uncover succinate as a potential microbiota-derived metabolite related to CVD risk.
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Affiliation(s)
- Carolina Serena
- Unitat de Recerca, Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Victoria Ceperuelo-Mallafré
- Unitat de Recerca, Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Noelia Keiran
- Unitat de Recerca, Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Tarragona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Maria Isabel Queipo-Ortuño
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario de Málaga Virgen de la Victoria, Universidad de Málaga, 29010, Málaga, Spain
- CIBER de Obesidad y Nutrición (CIBERObN), Instituto de Salud Carlos III, Madrid, Spain
| | - Rosa Bernal
- CIBER de Obesidad y Nutrición (CIBERObN), Instituto de Salud Carlos III, Madrid, Spain
- Servicio de Medicina Interna, IBIMA, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain
| | - Ricardo Gomez-Huelgas
- CIBER de Obesidad y Nutrición (CIBERObN), Instituto de Salud Carlos III, Madrid, Spain
- Servicio de Medicina Interna, IBIMA, Hospital Regional Universitario de Málaga, 29010, Málaga, Spain
| | - Mireia Urpi-Sarda
- Biomarkers and Nutrimetabolomics Laboratory, Nutrition, Food Science and Gastronomy Department, Faculty of Pharmacy and Food Science, University of Barcelona, Barcelona, 08028, Spain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, 28028, Spain
| | - Mónica Sabater
- CIBER de Obesidad y Nutrición (CIBERObN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Diabetes Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain
| | - Vicente Pérez-Brocal
- Genomics and Health Area, Foundation for the Promotion of Sanitary and Biomedical Research (FISABIO), València, Spain
- CIBER de Epidemiology y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - Cristina Andrés-Lacueva
- Biomarkers and Nutrimetabolomics Laboratory, Nutrition, Food Science and Gastronomy Department, Faculty of Pharmacy and Food Science, University of Barcelona, Barcelona, 08028, Spain
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, 28028, Spain
| | - Andres Moya
- Genomics and Health Area, Foundation for the Promotion of Sanitary and Biomedical Research (FISABIO), València, Spain
- CIBER de Epidemiology y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
- Institute of Integrative Systems Biology, Universitat de València, València, Spain
| | - Francisco J Tinahones
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario de Málaga Virgen de la Victoria, Universidad de Málaga, 29010, Málaga, Spain
- CIBER de Obesidad y Nutrición (CIBERObN), Instituto de Salud Carlos III, Madrid, Spain
| | - Jose Manuel Fernández-Real
- CIBER de Obesidad y Nutrición (CIBERObN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Diabetes Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain
| | - Joan Vendrell
- Unitat de Recerca, Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Tarragona, Spain.
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain.
- Universitat Rovira i Virgili, Tarragona, Spain.
| | - Sonia Fernández-Veledo
- Unitat de Recerca, Hospital Universitari de Tarragona Joan XXIII, Institut d´Investigació Sanitària Pere Virgili, Tarragona, Spain.
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain.
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143
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Peterson CT, Sharma V, Uchitel S, Denniston K, Chopra D, Mills PJ, Peterson SN. Prebiotic Potential of Herbal Medicines Used in Digestive Health and Disease. J Altern Complement Med 2018; 24:656-665. [PMID: 29565634 PMCID: PMC6065514 DOI: 10.1089/acm.2017.0422] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION The prebiotic potential of herbal medicines has been scarcely studied. METHODS The authors therefore used anaerobic human fecal cultivation to investigate whether three herbal medicines commonly used in gastrointestinal health and disease in Ayurveda alter the growth and abundance of specific bacterial species. RESULTS Profiling of cultures supplemented with Glycyrrhiza glabra, Ulmus rubra, or triphala formulation by 16S rDNA sequencing revealed profound changes in diverse taxa in human gut microbiota. Principal coordinate analysis highlights that each herbal medicine drives the formation of unique microbial communities. The relative abundance of approximately one-third of the 299 species profiled was altered by all 3 medicines, whereas additional species displayed herb-specific alterations. Herb supplementation increased the abundance of many bacteria known to promote human health, including Bifidobacterium spp., Lactobacillus spp., and Bacteroides spp. Herb supplementation resulted in the reduced relative abundance of many species, including potential pathogens such as Citrobacter freundii and Klebsiella pneumoniae. Herbal medicines induced blooms of butyrate- and propionate-producing species. U. rubra and triphala significantly increased the relative abundance of butyrate-producing bacteria, whereas G. glabra induced the largest increase in propionate-producing species. To achieve greater insight into the mechanisms through which herbal medicines alter microbial communities, the authors assessed the shifts in abundance of glycosyl hydrolase families induced by each herbal medicine. Herb supplementation, particularly G. glabra, significantly increased the representation and potential expression of several glycosyl hydrolase families. DISCUSSION These studies are novel in highlighting the significant prebiotic potential of medicinal herbs and suggest that the health benefits of these herbs are due, at least in part, to their ability to modulate the gut microbiota in a manner predicted to improve colonic epithelium function, reduce inflammation, and protect from opportunistic infection. Forthcoming studies in human clinical trials will test the concordance of the results generated in vitro and the predictions made by genome analyses.
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Affiliation(s)
- Christine Tara Peterson
- 1 Department of Family Medicine and Public Health, Center of Excellence for Research and Training in Integrative Health , School of Medicine, UC San Diego, La Jolla, California
| | - Vandana Sharma
- 2 Tumor Microenvironment and Cancer Immunology Program, Sanford Burnham Prebys Medical Discovery Institute , La Jolla, California
| | - Sasha Uchitel
- 3 Department of Biology, Washington University , St. Louis, Missouri
| | - Kate Denniston
- 4 Department of Naturopathic Medicine, Bastyr University , San Diego, California
| | - Deepak Chopra
- 1 Department of Family Medicine and Public Health, Center of Excellence for Research and Training in Integrative Health , School of Medicine, UC San Diego, La Jolla, California.,5 Department of Ayurveda and Yoga Research, Chopra Foundation , Carlsbad, California
| | - Paul J Mills
- 1 Department of Family Medicine and Public Health, Center of Excellence for Research and Training in Integrative Health , School of Medicine, UC San Diego, La Jolla, California
| | - Scott N Peterson
- 2 Tumor Microenvironment and Cancer Immunology Program, Sanford Burnham Prebys Medical Discovery Institute , La Jolla, California
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