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Mosele JI, Martín-Peláez S, Macià A, Farràs M, Valls RM, Catalán Ú, Motilva MJ. Faecal microbial metabolism of olive oil phenolic compounds: In vitro and in vivo approaches. Mol Nutr Food Res 2014; 58:1809-19. [DOI: 10.1002/mnfr.201400124] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 05/08/2014] [Accepted: 05/11/2014] [Indexed: 01/16/2023]
Affiliation(s)
- Juana I. Mosele
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center; University of Lleida; Lleida Spain
| | - Sandra Martín-Peláez
- Cardiovascular Risk and Nutrition Research Group; Inflammatory and Cardiovascular Disorders Research Program; Hospital del Mar Medical Research Institute (IMIM); Barcelona Biomedical Research Park (PRBB); Barcelona Spain
| | - Alba Macià
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center; University of Lleida; Lleida Spain
| | - Marta Farràs
- Cardiovascular Risk and Nutrition Research Group; Inflammatory and Cardiovascular Disorders Research Program; Hospital del Mar Medical Research Institute (IMIM); Barcelona Biomedical Research Park (PRBB); Barcelona Spain
- Ph.D. Program in Biochemistry, Molecular Biology and Biomedicine; Department of Biochemistry and Molecular Biology; Universitat Autònoma de Barcelona (UAB); Barcelona Spain
| | - Rosa-Maria Valls
- Lipid and Arteriosclerosis Research Unit, CIBERDEM; St. Joan de Reus University Hospital, IISPV, Faculty of Medicine and Health Sciences; Universitat Rovira i Virgili; Reus Spain
| | - Úrsula Catalán
- Lipid and Arteriosclerosis Research Unit, CIBERDEM; St. Joan de Reus University Hospital, IISPV, Faculty of Medicine and Health Sciences; Universitat Rovira i Virgili; Reus Spain
| | - María-José Motilva
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center; University of Lleida; Lleida Spain
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252
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Zarepoor L, Lu JT, Zhang C, Wu W, Lepp D, Robinson L, Wanasundara J, Cui S, Villeneuve S, Fofana B, Tsao R, Wood GA, Power KA. Dietary flaxseed intake exacerbates acute colonic mucosal injury and inflammation induced by dextran sodium sulfate. Am J Physiol Gastrointest Liver Physiol 2014; 306:G1042-55. [PMID: 24763556 DOI: 10.1152/ajpgi.00253.2013] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Flaxseed (FS), a dietary oilseed, contains a variety of anti-inflammatory bioactives, including fermentable fiber, phenolic compounds (lignans), and the n-3 polyunsaturated fatty acid (PUFA) α-linolenic acid. The objective of this study was to determine the effects of FS and its n-3 PUFA-rich kernel or lignan- and soluble fiber-rich hull on colitis severity in a mouse model of acute colonic inflammation. C57BL/6 male mice were fed a basal diet (negative control) or a basal diet supplemented with 10% FS, 6% kernel, or 4% hull for 3 wk prior to and during colitis induction via 5 days of 2% (wt/vol) dextran sodium sulfate (DSS) in their drinking water (n = 12/group). An increase in anti-inflammatory metabolites (hepatic n-3 PUFAs, serum mammalian lignans, and cecal short-chain fatty acids) was associated with consumption of all FS-based diets, but not with anti-inflammatory effects in DSS-exposed mice. Dietary FS exacerbated DSS-induced acute colitis, as indicated by a heightened disease activity index and an increase in colonic injury and inflammatory biomarkers [histological damage, apoptosis, myeloperoxidase, inflammatory cytokines (IL-6 and IL-1β), and NF-κB signaling-related genes (Nfkb1, Ccl5, Bcl2a1a, Egfr, Relb, Birc3, and Atf1)]. Additionally, the adverse effect of the FS diet was extended systemically, as serum cytokines (IL-6, IFNγ, and IL-1β) and hepatic cholesterol levels were increased. The adverse effects of FS were not associated with alterations in fecal microbial load or systemic bacterial translocation (endotoxemia). Collectively, this study demonstrates that although consumption of a 10% FS diet enhanced the levels of n-3 PUFAs, short-chain polyunsaturated fatty acids, and lignans in mice, it exacerbated DSS-induced colonic injury and inflammation.
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Affiliation(s)
- Leila Zarepoor
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada; Department of Human Health and Nutritional Science, University of Guelph, Guelph, Ontario, Canada
| | - Jenifer T Lu
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada; Department of Human Health and Nutritional Science, University of Guelph, Guelph, Ontario, Canada
| | - Claire Zhang
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada; Department of Human Health and Nutritional Science, University of Guelph, Guelph, Ontario, Canada
| | - Wenqing Wu
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada
| | - Dion Lepp
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada
| | - Lindsay Robinson
- Department of Human Health and Nutritional Science, University of Guelph, Guelph, Ontario, Canada
| | | | - Steve Cui
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada
| | | | - Bourlaye Fofana
- Crops and Livestock Research Centre, AAFC, Charlottetown, Prince Edward Island, Canada; and
| | - Rong Tsao
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada
| | - Geoffrey A Wood
- Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada
| | - Krista A Power
- Guelph Food Research Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, Ontario, Canada; Department of Human Health and Nutritional Science, University of Guelph, Guelph, Ontario, Canada;
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253
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Cronise RJ, Sinclair DA, Bremer AA. The "metabolic winter" hypothesis: a cause of the current epidemics of obesity and cardiometabolic disease. Metab Syndr Relat Disord 2014; 12:355-61. [PMID: 24918620 DOI: 10.1089/met.2014.0027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The concept of the "Calorie" originated in the 1800 s in an environment with limited food availability, primarily as a means to define economic equivalencies in the energy density of food substrates. Soon thereafter, the energy densities of the major macronutrients-fat, protein, and carbohydrates-were defined. However, within a few decades of its inception, the "Calorie" became a commercial tool for industries to promote specific food products, regardless of health benefit. Modern technology has altered our living conditions and has changed our relationship with food from one of survival to palatability. Advances in agriculture, food manufacturing, and processing have ensured that calorie scarcity is less prevalent than calorie excess in the modern world. Yet, many still approach dietary macronutrients in a reductionist manner and assume that isocalorie foodstuffs are isometabolic. Herein, we discuss a novel way to view the major food macronutrients and human diet in this era of excessive caloric consumption, along with a novel relationship among calorie scarcity, mild cold stress, and sleep that may explain the increasing prevalence of nutritionally related diseases.
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254
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Salonen A, Lahti L, Salojärvi J, Holtrop G, Korpela K, Duncan SH, Date P, Farquharson F, Johnstone AM, Lobley GE, Louis P, Flint HJ, de Vos WM. Impact of diet and individual variation on intestinal microbiota composition and fermentation products in obese men. ISME JOURNAL 2014; 8:2218-30. [PMID: 24763370 DOI: 10.1038/ismej.2014.63] [Citation(s) in RCA: 431] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 02/01/2014] [Accepted: 03/12/2014] [Indexed: 02/07/2023]
Abstract
There is growing interest in understanding how diet affects the intestinal microbiota, including its possible associations with systemic diseases such as metabolic syndrome. Here we report a comprehensive and deep microbiota analysis of 14 obese males consuming fully controlled diets supplemented with resistant starch (RS) or non-starch polysaccharides (NSPs) and a weight-loss (WL) diet. We analyzed the composition, diversity and dynamics of the fecal microbiota on each dietary regime by phylogenetic microarray and quantitative PCR (qPCR) analysis. In addition, we analyzed fecal short chain fatty acids (SCFAs) as a proxy of colonic fermentation, and indices of insulin sensitivity from blood samples. The diet explained around 10% of the total variance in microbiota composition, which was substantially less than the inter-individual variance. Yet, each of the study diets induced clear and distinct changes in the microbiota. Multiple Ruminococcaceae phylotypes increased on the RS diet, whereas mostly Lachnospiraceae phylotypes increased on the NSP diet. Bifidobacteria decreased significantly on the WL diet. The RS diet decreased the diversity of the microbiota significantly. The total 16S ribosomal RNA gene signal estimated by qPCR correlated positively with the three major SCFAs, while the amount of propionate specifically correlated with the Bacteroidetes. The dietary responsiveness of the individual's microbiota varied substantially and associated inversely with its diversity, suggesting that individuals can be stratified into responders and non-responders based on the features of their intestinal microbiota.
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Affiliation(s)
- Anne Salonen
- Immunobiology Research Program, Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Leo Lahti
- 1] Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands [2] Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
| | - Jarkko Salojärvi
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
| | | | - Katri Korpela
- Immunobiology Research Program, Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Sylvia H Duncan
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, UK
| | - Priya Date
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, UK
| | - Freda Farquharson
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, UK
| | | | - Gerald E Lobley
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, UK
| | - Petra Louis
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, UK
| | - Harry J Flint
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, UK
| | - Willem M de Vos
- 1] Immunobiology Research Program, Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Helsinki, Finland [2] Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands [3] Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
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255
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Tanner SA, Zihler Berner A, Rigozzi E, Grattepanche F, Chassard C, Lacroix C. In vitro continuous fermentation model (PolyFermS) of the swine proximal colon for simultaneous testing on the same gut microbiota. PLoS One 2014; 9:e94123. [PMID: 24709947 PMCID: PMC3978012 DOI: 10.1371/journal.pone.0094123] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 03/13/2014] [Indexed: 01/19/2023] Open
Abstract
In vitro gut modeling provides a useful platform for a fast and reproducible assessment of treatment-related changes. Currently, pig intestinal fermentation models are mainly batch models with important inherent limitations. In this study we developed a novel in vitro continuous fermentation model, mimicking the porcine proximal colon, which we validated during 54 days of fermentation. This model, based on our recent PolyFermS design, allows comparing different treatment effects on the same microbiota. It is composed of a first-stage inoculum reactor seeded with immobilized fecal swine microbiota and used to constantly inoculate (10% v/v) five second-stage reactors, with all reactors fed with fresh nutritive chyme medium and set to mimic the swine proximal colon. Reactor effluents were analyzed for metabolite concentrations and bacterial composition by HPLC and quantitative PCR, and microbial diversity was assessed by 454 pyrosequencing. The novel PolyFermS featured stable microbial composition, diversity and metabolite production, consistent with bacterial activity reported for swine proximal colon in vivo. The constant inoculation provided by the inoculum reactor generated reproducible microbial ecosystems in all second-stage reactors, allowing the simultaneous investigation and direct comparison of different treatments on the same porcine gut microbiota. Our data demonstrate the unique features of this novel PolyFermS design for the swine proximal colon. The model provides a tool for efficient, reproducible and cost-effective screening of environmental factors, such as dietary additives, on pig colonic fermentation.
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Affiliation(s)
- Sabine A. Tanner
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Annina Zihler Berner
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Eugenia Rigozzi
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Franck Grattepanche
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Christophe Chassard
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Christophe Lacroix
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
- * E-mail:
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256
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Abstract
PURPOSE OF REVIEW It is clear that the metabolic activities of the gut microbiota significantly impact upon human health and disease. RECENT FINDINGS Recent analyses have correlated alterations in microbial community structure with the onset of diabetes, obesity and cardiovascular disease as well as inflammatory conditions of the intestine. This work has demonstrated the influence of diet upon the microbiota in disease states and has identified a number of microbial metabolites that orchestrate the crucial aspects of the host-microbe dialog. The microbial production of short-chain fatty acids, trimethylamine, acetaldehyde and inflammatory mediators has been shown to significantly impact upon the metabolic health of the host through pathways that influence satiety, gut permeability and immune function. In the small intestine, microbial metabolism alters the host bile acid profile affecting the interactions with dedicated bile acid receptors (including FXR and TGR5) to influence both local and systemic cellular responses. Recent findings have, therefore, identified specific microbiota profiles and metabolites as predictors of disease risk as well as determining the microbial species (such as Akkermansia muciniphila and Bilophila wadsworthia) which correlate with health and disease. SUMMARY This work identifies the microbiota as an important target for new diagnostic and therapeutic approaches in metabolic disease.
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257
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Puertollano E, Kolida S, Yaqoob P. Biological significance of short-chain fatty acid metabolism by the intestinal microbiome. Curr Opin Clin Nutr Metab Care 2014; 17:139-44. [PMID: 24389673 DOI: 10.1097/mco.0000000000000025] [Citation(s) in RCA: 179] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE OF REVIEW Evidence suggests that short-chain fatty acids (SCFAs) derived from microbial metabolism in the gut play a central role in host homeostasis. The present review describes the current understanding and physiological implications of SCFAs derived from microbial metabolism of nondigestible carbohydrates. RECENT FINDINGS Recent studies indicate a role for SCFAs, in particular propionate and butyrate, in metabolic and inflammatory disorders such as obesity, diabetes and inflammatory bowel diseases, through the activation of specific G-protein-coupled receptors and modification of transcription factors. Established prebiotics, such as fructooligosaccharides and galactooligosaccharides, which support the growth of Bifidobacteria, mainly mediate acetate production. Thus, recent identification of prebiotics which are able to stimulate the production of propionate and butyrate by benign saccharolytic populations in the colon is of interest. SUMMARY Manipulation of saccharolytic fermentation by prebiotic substrates is beginning to provide information on structure-function relationships relating to the production of SCFAs, which have multiple roles in host homeostasis.
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Affiliation(s)
- Elena Puertollano
- Department of Food & Nutritional Sciences, University of Reading, Whiteknights, UK
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258
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Dumas ME, Kinross J, Nicholson JK. Metabolic phenotyping and systems biology approaches to understanding metabolic syndrome and fatty liver disease. Gastroenterology 2014; 146:46-62. [PMID: 24211299 DOI: 10.1053/j.gastro.2013.11.001] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 11/01/2013] [Accepted: 11/05/2013] [Indexed: 12/17/2022]
Abstract
Metabolic syndrome, a cluster of risk factors for type 2 diabetes mellitus and cardiovascular disease, is becoming an increasing global health concern. Insulin resistance is often associated with metabolic syndrome and also typical hepatic manifestations such as nonalcoholic fatty liver disease. Profiling of metabolic products (metabolic phenotyping or metabotyping) has provided new insights into metabolic syndrome and nonalcoholic fatty liver disease. Data from nuclear magnetic resonance spectroscopy and mass spectrometry combined with statistical modeling and top-down systems biology have allowed us to analyze and interpret metabolic signatures in terms of metabolic pathways and protein interaction networks and to identify the genomic and metagenomic determinants of metabolism. For example, metabolic phenotyping has shown that relationships between host cells and the microbiome affect development of the metabolic syndrome and fatty liver disease. We review recent developments in metabolic phenotyping and systems biology technologies and how these methodologies have provided insights into the mechanisms of metabolic syndrome and nonalcoholic fatty liver disease. We discuss emerging areas of research in this field and outline our vision for how metabolic phenotyping could be used to study metabolic syndrome and fatty liver disease.
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Affiliation(s)
- Marc-Emmanuel Dumas
- Section of Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London, England.
| | - James Kinross
- Section of Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London, England; Section of Biosurgery and Surgical Technology, Division of Surgery, Department of Surgery and Cancer, Faculty of Medicine, St. Mary's Hospital, Imperial College London, London, England
| | - Jeremy K Nicholson
- Section of Biomolecular Medicine, Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London, England
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259
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Haenen D, Souza da Silva C, Zhang J, Koopmans SJ, Bosch G, Vervoort J, Gerrits WJJ, Kemp B, Smidt H, Müller M, Hooiveld GJEJ. Resistant starch induces catabolic but suppresses immune and cell division pathways and changes the microbiome in the proximal colon of male pigs. J Nutr 2013; 143:1889-98. [PMID: 24132577 DOI: 10.3945/jn.113.182154] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Consumption of resistant starch (RS) has been associated with various intestinal health benefits, but knowledge of its effects on global gene expression in the colon is limited. The main objective of the current study was to identify genes affected by RS in the proximal colon to infer which biologic pathways were modulated. Ten 17-wk-old male pigs, fitted with a cannula in the proximal colon for repeated collection of tissue biopsy samples and luminal content, were fed a digestible starch (DS) diet or a diet high in RS (34%) for 2 consecutive periods of 14 d in a crossover design. Analysis of the colonic transcriptome profiles revealed that, upon RS feeding, oxidative metabolic pathways, such as the tricarboxylic acid cycle and β-oxidation, were induced, whereas many immune response pathways, including adaptive and innate immune system, as well as cell division were suppressed. The nuclear receptor peroxisome proliferator-activated receptor γ was identified as a potential key upstream regulator. RS significantly (P < 0.05) increased the relative abundance of several butyrate-producing microbial groups, including the butyrate producers Faecalibacterium prausnitzii and Megasphaera elsdenii, and reduced the abundance of potentially pathogenic members of the genus Leptospira and the phylum Proteobacteria. Concentrations in carotid plasma of the 3 main short-chain fatty acids acetate, propionate, and butyrate were significantly higher with RS consumption compared with DS consumption. Overall, this study provides novel insights on effects of RS in proximal colon and contributes to our understanding of a healthy diet.
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Affiliation(s)
- Daniëlle Haenen
- Nutrition Metabolism and Genomics Group, Division of Human Nutrition, 5Adaptation Physiology Group, 6Animal Nutrition Group, 7Laboratory of Microbiology, and 8Laboratory of Biochemistry, Wageningen University, Wageningen, The Netherlands
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