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Palmqvist H, Höglund K, Ringmark S, Lundh T, Dicksved J. Effects of whole-grain cereals on fecal microbiota and short-chain fatty acids in dogs: a comparison of rye, oats and wheat. Sci Rep 2023; 13:10920. [PMID: 37407634 DOI: 10.1038/s41598-023-37975-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/30/2023] [Indexed: 07/07/2023] Open
Abstract
Dietary fiber in dog food is reported to promote healthy gut microbiota, but few studies have investigated the effects of whole-grain cereals, which contain a variety of fiber types and other bioactive compounds. The aim of the present study was to compare the effects of diets containing whole-grain rye (RYE), oats (OAT) and wheat (WHE) on fecal microbiota and short-chain fatty acid production. Eighteen dogs were fed three experimental diets, each for four weeks, in a cross-over design. Fecal samples were collected at the end of each diet period. Analysis of 16S rRNA gene amplicons showed that family Lachnospiraceae and genus Bacteroides were the gut microbial groups most affected by diet, with lowest relative abundance following consumption of RYE and a trend for a corresponding increase in genus Prevotella_9. Fecal acetate and propionate concentrations were higher after consumption of RYE compared with OAT. In conclusion, rye had the strongest effect on gut microbiota and short-chain fatty acids, although the implications for dog gut health are not yet elucidated.
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Affiliation(s)
- Hanna Palmqvist
- Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.
| | - Katja Höglund
- Department of Anatomy, Physiology and Biochemistry, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Sara Ringmark
- Department of Anatomy, Physiology and Biochemistry, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Torbjörn Lundh
- Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Johan Dicksved
- Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
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Palmqvist H, Ringmark S, Höglund K, Pelve E, Lundh T, Dicksved J. Effects of rye inclusion in dog food on fecal microbiota and short-chain fatty acids. BMC Vet Res 2023; 19:70. [PMID: 37161401 PMCID: PMC10170736 DOI: 10.1186/s12917-023-03623-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/03/2023] [Indexed: 05/11/2023] Open
Abstract
BACKGROUND Rye intake has been associated with beneficial effects on health in human interventions, possibly due to dietary fiber in rye. In dogs, few studies have explored the effects on health of dietary fiber in general, and rye fiber in particular. The aim of this study was to investigate how inclusion of rye, compared with wheat, influenced fecal microbiota composition, short chain fatty acids (SCFA) and apparent total tract digestibility (ATTD) in dogs. Six male Beagle dogs (mean age 4.6 years, SEM 0.95 years; mean body weight 14.6 kg, SEM 0.32 kg) were fed three experimental diets, each for 21 days, including an adaptation period of six days and with 2-2.5 months between diet periods. The diets were similar regarding energy and protein, but had different carbohydrate sources (refined wheat (W), whole grain rye (R), or an equal mixture of both (RW)) comprising 50% of total weight on a dry matter (DM) basis. The diets were baked and titanium dioxide was added for ATTD determination. Fecal samples were collected before and in the end of each experimental period. Fecal microbiota was analyzed by sequencing 16S rRNA gene amplicons and fecal SCFA by high-performance liquid chromatography. Crude protein, crude fat, neutral detergent fiber, and gross energy (GE) in food and feces were analyzed and ATTD of each was determined. Univariate and multivariate statistical methods were applied in data evaluation. RESULTS Faecal microbiota composition, differed depending on diet (P = 0.002), with samples collected after consumption of the R diet differing from baseline. This was primarily because of a shift in proportion of Prevotella, which increased significantly after consumption of the R diet (P < 0.001). No significant differences were found for SCFA, but there was a tendency (P < 0.06) for higher molar proportions of acetic acid following consumption of the R diet. The ATTD of crude protein, crude fat, neutral detergent fiber, and GE was lower after consumption of the R diet compared with the other diets (P < 0.05). CONCLUSIONS Consumption of the R diet, but not RW or W diets, was associated with specific shifts in microbial community composition and function, but also with lower ATTD.
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Affiliation(s)
- Hanna Palmqvist
- Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Sara Ringmark
- Department of Anatomy, Physiology and Biochemistry, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Katja Höglund
- Department of Anatomy, Physiology and Biochemistry, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Erik Pelve
- Department of Anatomy, Physiology and Biochemistry, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Torbjörn Lundh
- Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Johan Dicksved
- Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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Blachier F, Andriamihaja M, Kong XF. Fate of undigested proteins in the pig large intestine: What impact on the colon epithelium? ANIMAL NUTRITION 2022; 9:110-118. [PMID: 35573094 PMCID: PMC9065739 DOI: 10.1016/j.aninu.2021.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/03/2021] [Accepted: 08/03/2021] [Indexed: 11/21/2022]
Abstract
Apart from its obvious agronomic interest in feeding billions of people worldwide, the porcine species represents an irreplaceable experimental model for intestinal physiologists and nutritionists. In this review, we give an overview on the fate of proteins that are not fully digested in the pig small intestine, and thus are transferred into the large intestine. In the large intestine, dietary and endogenous proteins are converted to peptides and amino acids (AA) by the action of bacterial proteases and peptidases. AA, which cannot, except in the neonatal period, be absorbed to any significant level by the colonocytes, are used by the intestinal microbes for protein synthesis and for the production of numerous metabolites. Of note, the production of the AA-derived metabolites greatly depends on the amount of undigested polysaccharides in the pig's diet. The effects of these AA-derived bacterial metabolites on the pig colonic epithelium have not yet been largely studied. However, the available data, performed on colonic mucosa, isolated colonic crypts and colonocytes, indicate that some of them, like ammonia, butyrate, acetate, hydrogen sulfide (H2S), and p-cresol are active either directly or indirectly on energy metabolism in colonic epithelial cells. Further studies in that area will certainly gain from the utilization of the pig colonic organoid model, which allows for disposal of functional epithelial unities. Such studies will contribute to a better understanding of the potential causal links between diet-induced changes in the luminal concentrations of these AA-derived bacterial metabolites and effects on the colon epithelial barrier function and water/electrolyte absorption.
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Demuth T, Edwards V, Bircher L, Lacroix C, Nyström L, Geirnaert A. In vitro Colon Fermentation of Soluble Arabinoxylan Is Modified Through Milling and Extrusion. Front Nutr 2021; 8:707763. [PMID: 34513901 PMCID: PMC8424098 DOI: 10.3389/fnut.2021.707763] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/28/2021] [Indexed: 12/13/2022] Open
Abstract
Dietary fibers such as arabinoxylan (AX) are promising food constituents to prevent particular diet-related chronic diseases because of their prebiotic properties. Arabinoxylan fermentation by the gut microbiota depends on the structural architecture of AX, which can be modified during food processing and consequently affect its prebiotic potential, but it is little investigated. Therefore, the aim of this study was to evaluate the effects of naturally occurring and processing-induced structural alterations of the soluble AX of wheat bran and rye flour on the in vitro human colon fermentation. It was found that fermentation behavior is strongly linked to the AX fine structure and their processing-induced modifications. The short-chain fatty acid (SCFA) metabolism, acidification kinetics, bacterial growth, and bacterial composition revealed that wheat bran AX (WBAX) was fermented faster than rye flour AX. Increased levels of bound phenolic acids resulting from processing were identified as the inhibiting factor for AX fermentation kinetics. Bacterial genera promoted by AX varied between AX source and processing type, but also between microbiota. Extruded WBAX promoted butyrate production and growth of butyrate-producing Faecalibacterium in the butyrogenic microbiota while it did not enhance fermentation and inhibited the growth of Prevotella in the propiogenic microbiota. We anticipate that the findings of this study are a starting point for further investigation on the impact of processing-induced changes on the prebiotic potential of dietary fibers prior to human studies.
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Affiliation(s)
- Teresa Demuth
- Laboratory of Food Biochemistry, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Veronica Edwards
- Laboratory of Food Biochemistry, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Lea Bircher
- 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
| | - Laura Nyström
- Laboratory of Food Biochemistry, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
| | - Annelies Geirnaert
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
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5
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Laue C, Stevens Y, van Erp M, Papazova E, Soeth E, Pannenbeckers A, Stolte E, Böhm R, Gall SL, Falourd X, Ballance S, Knutsen SH, Pinheiro I, Possemiers S, Ryan PM, Ross RP, Stanton C, Wells JM, van der Werf S, Mes JJ, Schrezenmeir J. Adjuvant Effect of Orally Applied Preparations Containing Non-Digestible Polysaccharides on Influenza Vaccination in Healthy Seniors: A Double-Blind, Randomised, Controlled Pilot Trial. Nutrients 2021; 13:2683. [PMID: 34444843 PMCID: PMC8400163 DOI: 10.3390/nu13082683] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/26/2021] [Accepted: 07/29/2021] [Indexed: 01/02/2023] Open
Abstract
Senior individuals can suffer from immunosenescence and novel strategies to bolster the immune response could contribute to healthy ageing. In this double-blind, randomised, controlled pilot trial, we investigated the ability of non-digestible polysaccharide (NPS) preparations to enhance the immune response in a human vaccination model. In total, 239 subjects (aged 50-79 years) were randomised to consume one of five different NPS (yeast β-glucan (YBG), shiitake β-glucan (SBG), oat β-glucan (OBG), arabinoxylan (AX), bacterial exopolysaccharide (EPS)) or control (CTRL) product daily for five weeks. After two weeks of intervention, subjects were vaccinated with seasonal influenza vaccine. The post-vaccination increases in haemagglutination inhibition antibody titres and seroprotection rate against the influenza strains were non-significantly enhanced in the NPS intervention groups compared to CTRL. Specifically, a trend towards a higher mean log2 fold increase was observed in the AX group (uncorrected p = 0.074) combined with a trend for an increased seroprotection rate, AX group (48.7%) compared to CTRL (25.6%) (uncorrected p = 0.057), for the influenza A H1N1 strain. Subjects consuming AX also had a reduced incidence of common colds compared to CTRL (1 vs. 8; p = 0.029 in Fisher exact test). No adverse effects of NPS consumption were reported. The findings of this pilot study warrant further research to study AX as an oral adjuvant to support vaccine efficacy.
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Affiliation(s)
- Christiane Laue
- Clinical Research Center Kiel, Kiel Center of Innovation and Technology, 24118 Kiel, Germany; (E.P.); (E.S.); (A.P.); (R.B.); (J.S.)
| | - Yala Stevens
- BioActor, Brightlands Health Campus, 6229 GS Maastricht, The Netherlands; (Y.S.); (M.v.E.)
| | - Monique van Erp
- BioActor, Brightlands Health Campus, 6229 GS Maastricht, The Netherlands; (Y.S.); (M.v.E.)
| | - Ekaterina Papazova
- Clinical Research Center Kiel, Kiel Center of Innovation and Technology, 24118 Kiel, Germany; (E.P.); (E.S.); (A.P.); (R.B.); (J.S.)
| | - Edlyn Soeth
- Clinical Research Center Kiel, Kiel Center of Innovation and Technology, 24118 Kiel, Germany; (E.P.); (E.S.); (A.P.); (R.B.); (J.S.)
| | - Angelika Pannenbeckers
- Clinical Research Center Kiel, Kiel Center of Innovation and Technology, 24118 Kiel, Germany; (E.P.); (E.S.); (A.P.); (R.B.); (J.S.)
| | - Ellen Stolte
- Host-Microbe Interactomics, Wageningen University & Research, 6708 WD Wageningen, The Netherlands; (E.S.); (J.M.W.)
| | - Ruwen Böhm
- Clinical Research Center Kiel, Kiel Center of Innovation and Technology, 24118 Kiel, Germany; (E.P.); (E.S.); (A.P.); (R.B.); (J.S.)
| | - Sophie Le Gall
- UR1268 BIA, INRA, 44316 Nantes, France; (S.L.G.); (X.F.)
| | - Xavier Falourd
- UR1268 BIA, INRA, 44316 Nantes, France; (S.L.G.); (X.F.)
| | - Simon Ballance
- Nofima, Norwegian Institute of Food Fisheries & Aquaculture Research , 1433 Ås, Norway; (S.B.); (S.H.K.)
| | - Svein H. Knutsen
- Nofima, Norwegian Institute of Food Fisheries & Aquaculture Research , 1433 Ås, Norway; (S.B.); (S.H.K.)
| | - Iris Pinheiro
- Prodigest, Technologiepark-Zwijnaarde, 9052 Ghent, Belgium; (I.P.); (S.P.)
| | - Sam Possemiers
- Prodigest, Technologiepark-Zwijnaarde, 9052 Ghent, Belgium; (I.P.); (S.P.)
| | - Paul M. Ryan
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co., P61 C996 Cork, Ireland; (P.M.R.); (C.S.)
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland;
| | - R. Paul Ross
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland;
| | - Catherine Stanton
- Teagasc, Food Research Centre, Moorepark, Fermoy, Co., P61 C996 Cork, Ireland; (P.M.R.); (C.S.)
- APC Microbiome Ireland, University College Cork, T12 YT20 Cork, Ireland;
| | - Jerry M. Wells
- Host-Microbe Interactomics, Wageningen University & Research, 6708 WD Wageningen, The Netherlands; (E.S.); (J.M.W.)
| | | | - Jurriaan J. Mes
- Wageningen Food and Biobased Research, Wageningen University & Research, 6708 WG Wageningen, The Netherlands;
| | - Juergen Schrezenmeir
- Clinical Research Center Kiel, Kiel Center of Innovation and Technology, 24118 Kiel, Germany; (E.P.); (E.S.); (A.P.); (R.B.); (J.S.)
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6
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Snelson M, Tan SM, Clarke RE, de Pasquale C, Thallas-Bonke V, Nguyen TV, Penfold SA, Harcourt BE, Sourris KC, Lindblom RS, Ziemann M, Steer D, El-Osta A, Davies MJ, Donnellan L, Deo P, Kellow NJ, Cooper ME, Woodruff TM, Mackay CR, Forbes JM, Coughlan MT. Processed foods drive intestinal barrier permeability and microvascular diseases. SCIENCE ADVANCES 2021; 7:7/14/eabe4841. [PMID: 33789895 PMCID: PMC8011970 DOI: 10.1126/sciadv.abe4841] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/12/2021] [Indexed: 05/04/2023]
Abstract
Intake of processed foods has increased markedly over the past decades, coinciding with increased microvascular diseases such as chronic kidney disease (CKD) and diabetes. Here, we show in rodent models that long-term consumption of a processed diet drives intestinal barrier permeability and an increased risk of CKD. Inhibition of the advanced glycation pathway, which generates Maillard reaction products within foods upon thermal processing, reversed kidney injury. Consequently, a processed diet leads to innate immune complement activation and local kidney inflammation and injury via the potent proinflammatory effector molecule complement 5a (C5a). In a mouse model of diabetes, a high resistant starch fiber diet maintained gut barrier integrity and decreased severity of kidney injury via suppression of complement. These results demonstrate mechanisms by which processed foods cause inflammation that leads to chronic disease.
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Affiliation(s)
- Matthew Snelson
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Sih Min Tan
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Rachel E Clarke
- Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Cassandra de Pasquale
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Vicki Thallas-Bonke
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Tuong-Vi Nguyen
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Sally A Penfold
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Brooke E Harcourt
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Karly C Sourris
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Runa S Lindblom
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Mark Ziemann
- Deakin University, School of Life and Environmental Sciences, Geelong, Victoria, Australia
| | - David Steer
- Monash Proteomics and Metabolomics Facility, Monash University, Melbourne, Victoria, Australia
| | - Assam El-Osta
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Michael J Davies
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Leigh Donnellan
- Health and Biomedical Innovation, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Permal Deo
- Health and Biomedical Innovation, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Nicole J Kellow
- Department of Nutrition, Dietetics and Food, Monash University, Melbourne, Victoria, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Trent M Woodruff
- School of Biomedical Sciences, University of Queensland, Brisbane, Queensland, Australia
| | - Charles R Mackay
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
- Department of Microbiology, Monash University, Melbourne, Victoria, Australia
| | - Josephine M Forbes
- Glycation and Diabetes Group, Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Melinda T Coughlan
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia.
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
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7
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Long C, de Vries S, Venema K. Polysaccharide source altered ecological network, functional profile, and short-chain fatty acid production in a porcine gut microbiota. Benef Microbes 2020; 11:591-610. [PMID: 32936008 DOI: 10.3920/bm2020.0006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Several validated dynamic in vitro models of the colon have been developed for humans, but there is no dynamic in vitro fermentation model for pigs. This study was conducted to modify the human, dynamic, computer-controlled TNO in vitro model of the colon (TIM-2) for pigs and investigate effects of different starch sources and polysaccharides on swine microbiota structure, ecological network, predictive functional profile, and short-chain fatty acids production. Our study showed that three different types of starch or two polysaccharides greatly impacted microbiota composition. Co-occurrence network analysis indicated that microbiota fed with different sources of starch changed the network topological properties. Functional profiles were predicted to vary significantly among the three starch treatments, and the original pig faecal inoculum was more similar to maize starch treatment. On the other hand, compared with maize starch and arabinoxylans (AX), the microbial composition of the original inoculum was more similar when AX-XG (arabinoxylans and xyloglucan) were added, and the functional profile of the original inoculum also clustered with AX-XG. The cumulative production of acetic, propionic, and butyric acid on maize starch were significantly higher than those on potato starch and wheat starch, while only the amount of acetic acid was significant higher on AX-XG than that on AX. In conclusion, supplementation of maize starch as the starch source together with AX and XG, leads to the bacteria being more stable in the in vitro model and closer to the original inoculum and microbial function compared to potato starch, wheat starch and AX. A maize basal diet may improve energy absorption in the large intestine in growing pigs.
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Affiliation(s)
- C Long
- Faculty of Science and Engineering, Centre for Healthy Eating & Food Innovation, Maastricht University - campus Venlo, St. Jansweg 20, 5928 RC Venlo, the Netherlands
| | - S de Vries
- Animal Nutrition Group, Wageningen University, P.O. Box 338, 6700 AH Wageningen, the Netherlands
| | - K Venema
- Faculty of Science and Engineering, Centre for Healthy Eating & Food Innovation, Maastricht University - campus Venlo, St. Jansweg 20, 5928 RC Venlo, the Netherlands
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8
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Matsuzaki K, Iwai K, Yoshikawa Y, Shimamura Y, Miyoshi N, Hiramoto S, Asada K, Fukutomi R, Su H, Ohashi N. Wheat Bran Intake Enhances the Secretion of Bacteria-Binding IgA in a Lumen of the Intestinal Tract by Incrementing Short Chain Fatty Acid Production Through Modulation of Gut Microbiota. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20917791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Wheat bran, a by-product generated in large amounts during wheat processing, consists of 36.5% to 52.4% total dietary fiber. In this study, we investigated the effects of wheat bran intake on the intestinal tract immune system through the modulation of gut microbiota. Balb/c mice were fed with AIN-93G diets containing wheat bran with 2 different particle sizes (average particle size of 53 µm: powdered wheat bran; PWB, and 350 µm: granulated wheat bran; WB) as dietary fibers for 4 weeks. In the wheat bran intake groups, short chain fatty acids (SCFAs: acetic acid, propionic acid, and butyric acid) in the feces were increased after the intake of both particle-size diets, especially in the PWB group, in which the increase occurred immediately. 16S rRNA-based metagenomics of the fecal microbiota revealed that the Shannon Index (α-diversity) and weighted UniFrac distances (β-diversity) in wheat bran intake groups were significantly higher than those in the Control group, and the ratio of the certain family within the order Clostridiales in the fecal microbiota was increased after wheat bran intake, probably some including SCFA-producing bacteria. CXCR5, which is a key surface marker expressed on T follicular helper (Tfh) cells, tended to increase at the expression level in wheat bran intake groups. In addition, the amounts of secretory immunoglobulin A (IgA) and the proportion of IgA-binding bacteria in the feces from wheat bran intake groups were significantly higher than those from the Control group. These findings suggest that wheat bran may enhance Tfh-mediated IgA production in the intestine by SCFA increment through the modulation of gut microbiota and is expected to maintain and improve a healthy intestinal environment.
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Affiliation(s)
- Konosuke Matsuzaki
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Japan
| | - Katsuki Iwai
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Japan
| | - Yuko Yoshikawa
- School of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Yuko Shimamura
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Japan
| | - Noriyuki Miyoshi
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Japan
| | | | - Kenichi Asada
- Health Care Research Center, Nisshin Pharma Inc., Tokyo, Japan
| | - Ryuuta Fukutomi
- Health Care Research Center, Nisshin Pharma Inc., Tokyo, Japan
| | - Hongru Su
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Japan
| | - Norio Ohashi
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Japan
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9
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Sanz-Serrano J, López de Cerain A, Garayoa R, Azqueta A, Vettorazzi A. Genotoxicity evaluation of fried meat: A comprehensive review. Food Chem Toxicol 2020; 136:110943. [DOI: 10.1016/j.fct.2019.110943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/31/2019] [Accepted: 11/02/2019] [Indexed: 01/11/2023]
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10
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Xu Y, Curtasu MV, Bendiks Z, Marco ML, P. Nørskov N, Knudsen KEB, Hedemann MS, Lærke HN. Effects of dietary fibre and protein content on intestinal fibre degradation, short-chain fatty acid and microbiota composition in a high-fat fructose-rich diet induced obese Göttingen Minipig model. Food Funct 2020; 11:10758-10773. [DOI: 10.1039/d0fo02252g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An AX-enriched high DF diet improved the intestinal environment and attenuated protein fermentation, while protein did not show prebiotic effects.
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Affiliation(s)
- Yetong Xu
- Department of Animal Science
- Aarhus University
- DK-8830 Tjele
- Denmark
| | | | - Zachary Bendiks
- Department of Food Science and Technology
- University of California
- Davis
- USA
| | - Maria L. Marco
- Department of Food Science and Technology
- University of California
- Davis
- USA
| | - Natalja P. Nørskov
- Department of Food Science and Technology
- University of California
- Davis
- USA
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11
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Ge Y, Lin S, Li B, Yang Y, Tang X, Shi Y, Sun J, Le G. Oxidized Pork Induces Oxidative Stress and Inflammation by Altering Gut Microbiota in Mice. Mol Nutr Food Res 2019; 64:e1901012. [PMID: 31845486 DOI: 10.1002/mnfr.201901012] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/26/2019] [Indexed: 12/14/2022]
Abstract
SCOPE Reduced digestibility of foods containing oxidized proteins and the subsequent excessive accumulation of undigested components in the colon may cause changes in the intestinal flora composition. This study evaluates the characteristics of this change and the potential adverse effects on organisms. METHODS AND RESULTS Pork is cooked using sous-vide or at high temperature and pressure (HTP), then freeze-dried, resulting in different levels of oxidized damage. Mice are fed diets containing low- (LOP), medium- (MOP), or high-oxidative damage pork (HOP) for 12 weeks. HOP intake increases mice body weight, induces inflammatory response, and causes oxidative stress, as indicated by the accumulation of oxidative products. Increased serum LPS levels and downregulation of tight junction-related genes in the mucosa suggest mucosal barrier damage. Alterations in the cecal microbiota include reduced relative abundance of the mucin-degrading bacteria Akkermansia, beneficial bacteria Lactobacillus and Bifidobacterium, and H2 S-producing bacteria Desulfovibrio and increased relative abundance of the pro-inflammatory bacteria Escherichia-Shigella and pathobiont Mucispirillum. CONCLUSION HOP intake causes the accumulation of oxidative products, increases body weight, damages the intestinal barrier, and induces oxidative stress and inflammatory response, likely by altering gut microbiota through protein oxidation (POX).
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Affiliation(s)
- Yueting Ge
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China.,Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Shiman Lin
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Bowen Li
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Yuhui Yang
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China.,College of Grain and Food Science, Henan University of Technology, Zhengzhou, 450001, P. R. China
| | - Xue Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China.,Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Yonghui Shi
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China.,Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jin Sun
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China.,Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, P. R. China
| | - Guowei Le
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China.,Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, P. R. China
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12
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Tiwari UP, Singh AK, Jha R. Fermentation characteristics of resistant starch, arabinoxylan, and β-glucan and their effects on the gut microbial ecology of pigs: A review. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2019; 5:217-226. [PMID: 31528722 PMCID: PMC6737498 DOI: 10.1016/j.aninu.2019.04.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 03/03/2019] [Accepted: 04/23/2019] [Indexed: 01/10/2023]
Abstract
Dietary fibers (DF) contain an abundant amount of energy, although the mammalian genome does not encode most of the enzymes required to degrade them. However, a mutual dependence is developed between the host and symbiotic microbes, which has the potential to extract the energy present in these DF. Dietary fibers escape digestion in the foregut and are fermented in the hindgut, producing short-chain fatty acids (SCFA) that alter the microbial ecology in the gastrointestinal tract (GIT) of pigs. Most of the carbohydrates are fermented in the proximal part, allowing protein fermentation in the distal part, resulting in colonic diseases. The structures of resistant starch (RS), arabinoxylan (AX), and β-glucan (βG) are complex; hence, makes their way into the hindgut where these are fermented and provide energy substrates for the colonic epithelial cells. Different microbes have different preferences of binding to different substrates. The RS, AX and βG act as a unique substrate for the microbes and modify the relative composition of the gut microbial community. The granule dimension and surface area of each substrate are different, which influences the penetration capacity of microbes. Arabinose and xylan are 2 different hemicelluloses, but arabinose is substituted on the xylan backbone and occurs in the form of AX. Fermentation of xylan produces butyrate primarily in the small intestine, whereas arabinose produces butyrate in the large intestine. Types of RS and forms of βG also exert beneficial effects by producing different metabolites and modulating the intestinal microbiota. Therefore, it is important to have information of different types of RS, AX and βG and their roles in microbial modulation to get the optimum benefits of fiber fermentation in the gut. This review provides relevant information on the similarities and differences that exist in the way RS, AX, and βG are fermented, and their positive and negative effects on SCFA production and gut microbial ecology of pigs. These insights will help nutritionists to develop dietary strategies that can modulate specific SCFA production and promote beneficial microbiota in the GIT of swine.
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Affiliation(s)
| | | | - Rajesh Jha
- Department of Human Nutrition Food and Animal Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, HI 96822, USA
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13
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Comino P, Williams BA, Gidley MJ. In vitro fermentation gas kinetics and end-products of soluble and insoluble cereal flour dietary fibres are similar. Food Funct 2018; 9:898-905. [PMID: 29302665 DOI: 10.1039/c7fo01724c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Insoluble dietary fibre is often considered to be fermented slower and to a lesser extent in (models for) the colon than soluble dietary fibre. However these comparisons are typically made for fibre components of different composition. In the case of fibre from refined cereal flours, there is little difference in fibre composition between soluble and insoluble forms, so effects of solubility on fermentation can be tested without this confounding factor. For each of wheat, rye, and hull-less barley, soluble and insoluble fibre fractions from refined flour and models for baking and extrusion had comparable in vitro fermentation rates and extents, with similar levels of short chain fatty acid metabolites. This study suggests that there should be little difference in the large intestinal nutritional functionality of the soluble and insoluble fibre fractions from cereal grain flours, either unprocessed or after baking or extrusion processing.
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Affiliation(s)
- Penny Comino
- The University of Queensland, Centre for Nutrition and Food Sciences, ARC Centre of Excellence in Plant Cell Walls, Queensland Alliance for Agriculture and Food Innovation, St Lucia, 4072, Australia.
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14
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Nielsen TS, Canibe N, Larsen FH. Butyrylation of Maize and Potato Starches and Characterization of the Products by Nuclear Magnetic Resonance and In Vitro Fermentation. Foods 2018; 7:foods7050079. [PMID: 29783633 PMCID: PMC5977099 DOI: 10.3390/foods7050079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/16/2018] [Accepted: 05/16/2018] [Indexed: 12/16/2022] Open
Abstract
Intake of butyrylated starches may increase colonic butyrate supply, which can be of public health and clinical benefit by maintaining colonic health. The objective was to investigate if an organocatalytic method with tartaric acid as a catalyst could be applied to produce butyrylated products from different starch sources and to characterize their chemical structure and fermentation capability by using solid-state 13C MAS NMR (magic angle spinning nuclear magnetic resonance) spectroscopy and an in vitro fermentation model, respectively. Low-amylose and high-amylose potato starch (LAPS and HAPS) and low-amylose and high-amylose maize starch (LAMS and HAMS) were subjected to organocatalytic butyrylation. This resulted in products with an increasing degree of substitution (DS) measured by heterogenous saponification and back titration with the HCl (chemical method) depending on reaction time. NMR analysis, however, showed that the major part of the acylation was induced by tartarate (75–89%) and only a minor part (11–25%) by butyrate. Generally, the chemical method overestimated the DS by 38% to 91% compared with the DS determination by NMR. Increasing the DS appeared to lower the in vitro fermentation capability of starches independent of the starch source and, therefore, do not seem to present a feasible method to deliver more butyrate to the colon than lower DS products.
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Affiliation(s)
- Tina Skau Nielsen
- Department of Animal Science, Aarhus University, Blichers Allé 20, DK-8830 Tjele, Denmark.
| | - Nuria Canibe
- Department of Animal Science, Aarhus University, Blichers Allé 20, DK-8830 Tjele, Denmark.
| | - Flemming Hofmann Larsen
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C., Denmark.
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15
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Turner ND, Lloyd SK. Association between red meat consumption and colon cancer: A systematic review of experimental results. Exp Biol Med (Maywood) 2017; 242:813-839. [PMID: 28205448 PMCID: PMC5407540 DOI: 10.1177/1535370217693117] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
A role for red and processed meat in the development of colorectal cancer has been proposed based largely on evidence from observational studies in humans, especially in those populations consuming a westernized diet. Determination of causation specifically by red or processed meat is contingent upon identification of plausible mechanisms that lead to colorectal cancer. We conducted a systematic review of the available evidence to determine the availability of plausible mechanistic data linking red and processed meat consumption to colorectal cancer risk. Forty studies using animal models or cell cultures met specified inclusion criteria, most of which were designed to examine the role of heme iron or heterocyclic amines in relation to colon carcinogenesis. Most studies used levels of meat or meat components well in excess of those found in human diets. Although many of the experiments used semi-purified diets designed to mimic the nutrient loads in current westernized diets, most did not include potential biologically active protective compounds present in whole foods. Because of these limitations in the existing literature, there is currently insufficient evidence to confirm a mechanistic link between the intake of red meat as part of a healthy dietary pattern and colorectal cancer risk. Impact statement Current recommendations to reduce colon cancer include the reduction or elimination of red or processed meats. These recommendations are based on data from epidemiological studies conducted among cultures where meat consumption is elevated and consumption of fruits, vegetables, and whole grains are reduced. This review evaluated experimental data exploring the putative mechanisms whereby red or processed meats may contribute to colon cancer. Most studies used levels of meat or meat-derived compounds that were in excess of those in human diets, even in cultures where meat intake is elevated. Experiments where protective dietary compounds were used to mitigate the extreme levels of meat and meat-derived compounds showed protection against colon cancer, with some essentially negating the impact of meat in the diet. It is essential that better-designed studies be conducted that use relevant concentrations of meat or meat-derived compounds in complex diets representative of the foods consumed by humans.
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Affiliation(s)
- Nancy D Turner
- Nutrition & Food Science Department, Texas A&M University, TX 77843-2253, USA
- Department of Veterinary Pathobiology, Texas A&M University, TX 77843-2253, USA
| | - Shannon K Lloyd
- Nutrition & Food Science Department, Texas A&M University, TX 77843-2253, USA
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16
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Bach Knudsen KE, Jørgensen H, Theil PK. Changes in short-chain fatty acid plasma profile incurred by dietary fiber composition1. J Anim Sci 2016. [DOI: 10.2527/jas.2015-9786] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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17
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Knudsen KEB, Lærke HN, Ingerslev AK, Hedemann MS, Nielsen TS, Theil PK. Carbohydrates in pig nutrition – Recent advances. J Anim Sci 2016. [DOI: 10.2527/jas.2015-9785] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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18
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Hald S, Schioldan AG, Moore ME, Dige A, Lærke HN, Agnholt J, Bach Knudsen KE, Hermansen K, Marco ML, Gregersen S, Dahlerup JF. Effects of Arabinoxylan and Resistant Starch on Intestinal Microbiota and Short-Chain Fatty Acids in Subjects with Metabolic Syndrome: A Randomised Crossover Study. PLoS One 2016; 11:e0159223. [PMID: 27434092 PMCID: PMC4951149 DOI: 10.1371/journal.pone.0159223] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 05/25/2016] [Indexed: 12/20/2022] Open
Abstract
Recently, the intestinal microbiota has been emphasised as an important contributor to the development of metabolic syndrome. Dietary fibre may exert beneficial effects through modulation of the intestinal microbiota and metabolic end products. We investigated the effects of a diet enriched with two different dietary fibres, arabinoxylan and resistant starch type 2, on the gut microbiome and faecal short-chain fatty acids. Nineteen adults with metabolic syndrome completed this randomised crossover study with two 4-week interventions of a diet enriched with arabinoxylan and resistant starch and a low-fibre Western-style diet. Faecal samples were collected before and at the end of the interventions for fermentative end-product analysis and 16S ribosomal RNA bacterial gene amplification for identification of bacterial taxa. Faecal carbohydrate residues were used to verify compliance. The diet enriched with arabinoxylan and resistant starch resulted in significant reductions in the total species diversity of the faecal-associated intestinal microbiota but also increased the heterogeneity of bacterial communities both between and within subjects. The proportion of Bifidobacterium was increased by arabinoxylan and resistant starch consumption (P<0.001), whereas the proportions of certain bacterial genera associated with dysbiotic intestinal communities were reduced. Furthermore, the total short-chain fatty acids (P<0.01), acetate (P<0.01) and butyrate concentrations (P<0.01) were higher by the end of the diet enriched with arabinoxylan and resistant starch compared with those resulting from the Western-style diet. The concentrations of isobutyrate (P = 0.05) and isovalerate (P = 0.03) decreased in response to the arabinoxylan and resistant starch enriched diet, indicating reduced protein fermentation. In conclusion, arabinoxylan and resistant starch intake changes the microbiome and short-chain fatty acid compositions, with potential beneficial effects on colonic health and metabolic syndrome. TRIAL REGISTRATION ClinicalTrials.gov NCT01618526.
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Affiliation(s)
- Stine Hald
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Anne Grethe Schioldan
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Mary E. Moore
- Department of Food Science and Technology, University of California Davis, Davis, California, United States of America
| | - Anders Dige
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Jørgen Agnholt
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Kjeld Hermansen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Maria L. Marco
- Department of Food Science and Technology, University of California Davis, Davis, California, United States of America
| | - Søren Gregersen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Jens F. Dahlerup
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
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19
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Lei Z, Shao Y, Yin X, Yin D, Guo Y, Yuan J. Combination of Xylanase and Debranching Enzymes Specific to Wheat Arabinoxylan Improve the Growth Performance and Gut Health of Broilers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:4932-4942. [PMID: 27285356 DOI: 10.1021/acs.jafc.6b01272] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Arabinoxylan (AX) is the major antinutritional factor of wheat. This study evaluated the synergistic effects of xylanase and debranching enzymes (arabinofuranosidase [ABF] and feruloyl esterase [FAE]) on AX. During in vitro tests, the addition of ABF or FAE accelerated the hydrolysis of water-soluble AX (WE-AX) and water-insoluble AX (WU-AX) and produced more xylan oligosaccharides (XOS) than xylanase alone. XOS obtained from WE-AX stimulated greater proliferation of Lactobacillus brevis and Bacillus subtilis than did fructo-oligosaccharides (FOS) and glucose. During in vivo trials, xylanase increased the average daily growth (ADG), decreased the feed-conversion ratio (FCR), and reduced the digesta viscosity of jejunum and intestinal lesions of broilers fed a wheat-based diet on day 36. ABF or FAE additions further improved these effects. Broilers fed a combination of xylanase, ABF, and FAE exhibited the best growth. In conclusion, the synergistic effects among xylanase, ABF, and FAE increased AX degradation, which improve the growth performance and gut health of broilers.
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Affiliation(s)
- Zhao Lei
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Yuxin Shao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Xiaonan Yin
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Dafei Yin
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Jianmin Yuan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing, 100193, PR China
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20
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Gunness P, Flanagan BM, Mata JP, Gilbert EP, Gidley MJ. Molecular interactions of a model bile salt and porcine bile with (1,3:1,4)-β-glucans and arabinoxylans probed by 13C NMR and SAXS. Food Chem 2016; 197:676-85. [DOI: 10.1016/j.foodchem.2015.10.104] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 09/23/2015] [Accepted: 10/21/2015] [Indexed: 11/16/2022]
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21
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Rumpagaporn P, Reuhs BL, Cantu-Jungles TM, Kaur A, Patterson JA, Keshavarzian A, Hamaker BR. Elevated propionate and butyrate in fecal ferments of hydrolysates generated by oxalic acid treatment of corn bran arabinoxylan. Food Funct 2016; 7:4935-4943. [PMID: 27841429 DOI: 10.1039/c6fo00975a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Oxalic acid-debranched corn arabinoxylan increased butyrate while maintaining high proprionate in human fecalin vitrofermentations.
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Affiliation(s)
- Pinthip Rumpagaporn
- Whistler Center for Carbohydrate Research and Department of Food Science
- Purdue University
- West Lafayette
- USA
| | - Brad L. Reuhs
- Whistler Center for Carbohydrate Research and Department of Food Science
- Purdue University
- West Lafayette
- USA
| | - Thaisa M. Cantu-Jungles
- Whistler Center for Carbohydrate Research and Department of Food Science
- Purdue University
- West Lafayette
- USA
| | - Amandeep Kaur
- Whistler Center for Carbohydrate Research and Department of Food Science
- Purdue University
- West Lafayette
- USA
| | | | - Ali Keshavarzian
- Division of Digestive Diseases and Nutrition
- Rush University
- Chicago
- USA
| | - Bruce R. Hamaker
- Whistler Center for Carbohydrate Research and Department of Food Science
- Purdue University
- West Lafayette
- USA
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22
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Ma X, Wang L, Wei H, Huo X, Wang C, Liu D, Zhou S, Cao L. Adjuvant properties of water extractable arabinoxylans with different structural features from wheat flour against model antigen ovalbumin. Food Funct 2016; 7:1537-43. [DOI: 10.1039/c5fo01207d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the numerous benefits of AX on the immune system and gut bacteria, the potential adjuvant activity of WEAX on immune responses has not been adequately investigated.
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Affiliation(s)
- Xiaoling Ma
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
- Xinjiang Institute of Chinese Materia Medica and Ethnodrug
| | - Lili Wang
- Institute of Agro-food Science & Technology
- Chinese Academy of Agricultural Sciences
- Beijing 100193
- China
| | - Hongyan Wei
- Xinjiang Institute of Chinese Materia Medica and Ethnodrug
- Urumqi
- China
| | - Xiaowei Huo
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
| | - Canhong Wang
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
| | - Dongyu Liu
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
| | - Sumei Zhou
- Institute of Agro-food Science & Technology
- Chinese Academy of Agricultural Sciences
- Beijing 100193
- China
| | - Li Cao
- Institute of Medicinal Plant Development
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100193
- China
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23
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Nielsen TS, Theil PK, Purup S, Nørskov NP, Bach Knudsen KE. Effects of Resistant Starch and Arabinoxylan on Parameters Related to Large Intestinal and Metabolic Health in Pigs Fed Fat-Rich Diets. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:10418-10430. [PMID: 26566722 DOI: 10.1021/acs.jafc.5b03372] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study compared the effects of a resistant starch (RS)-rich, arabinoxylan (AX)-rich, or low-DF Western-style control diet (all high-fat) on large intestinal gene expression, adiposity, and glycemic response parameters in pigs. Animals were slaughtered after 3 weeks of treatment. Plasma butyrate concentration was higher following the high-DF diets, whereas plasma glucose, insulin, and insulin resistance increased after 3 weeks irrespective of diet. The mRNA abundance in the large intestine of genes involved in nutrient transport, immune response, and intestinal permeability was affected by segment (cecum, proximal, mid or distal colon) and some genes also by diet. In contrast, there was no diet-induced effect on adipose mRNA abundance or adipocyte size. Overall, a high level of RS or AX did not demonstrate strong beneficial effects on large intestinal gene expression as indicators of colonic health or glycemic response parameters when included in a high-fat diet for pigs as a model of healthy humans.
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Affiliation(s)
| | | | - Stig Purup
- Department of Animal Science, Aarhus University , Tjele, Denmark
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24
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Regina A, Berbezy P, Kosar-Hashemi B, Li S, Cmiel M, Larroque O, Bird AR, Swain SM, Cavanagh C, Jobling SA, Li Z, Morell M. A genetic strategy generating wheat with very high amylose content. PLANT BIOTECHNOLOGY JOURNAL 2015; 13:1276-86. [PMID: 25644858 DOI: 10.1111/pbi.12345] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 12/22/2014] [Accepted: 12/22/2014] [Indexed: 05/20/2023]
Abstract
Resistant starch (RS), a type of dietary fibre, plays an important role in human health; however, the content of RS in most modern processed starchy foods is low. Cereal starch, when structurally manipulated through a modified starch biosynthetic pathway to greatly increase the amylose content, could be an important food source of RS. Transgenic studies have previously revealed the requirement of simultaneous down-regulation of two starch branching enzyme (SBE) II isoforms both located on the long arm of chromosome 2, namely SBEIIa and SBEIIb, to elevate the amylose content in wheat from ~25% to ~75%. The current study revealed close proximity of genes encoding SBEIIa and SBEIIb isoforms in wheat with a genetic distance of 0.5 cM on chromosome 2B. A series of deletion and single nucleotide polymorphism (SNP) loss of function alleles in SBEIIa, SBEIIb or both was isolated from two different wheat populations. A breeding strategy to combine deletions and SNPs generated wheat genotypes with altered expression levels of SBEIIa and SBEIIb, elevating the amylose content to an unprecedented ~85%, with a marked concomitant increase in RS content. Biochemical assays were used to confirm the complete absence in the grain of expression of SBEIIa from all three genomes in combination with the absence of SBEIIb from one of the genomes.
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Affiliation(s)
- Ahmed Regina
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | - Pierre Berbezy
- Limagrain Cereales Ingredients, ZAC Les Portes de Riom, Riom Cedex, France
| | | | - Suzhi Li
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | - Mark Cmiel
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | | | - Anthony R Bird
- CSIRO Food and Nutrition Flagship, Adelaide, SA, Australia
| | - Steve M Swain
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | | | | | - Zhongyi Li
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
| | - Matthew Morell
- CSIRO Agriculture Flagship, Canberra, ACT, Australia
- International Rice Research Institute, Los Banos, Philippines
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25
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Soluble arabinoxylan enhances large intestinal microbial health biomarkers in pigs fed a red meat-containing diet. Nutrition 2015; 32:491-7. [PMID: 26740253 DOI: 10.1016/j.nut.2015.10.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 10/12/2015] [Accepted: 10/12/2015] [Indexed: 01/01/2023]
Abstract
OBJECTIVES The aim of this study was to investigate how moderately increased dietary red meat combined with a soluble fiber (wheat arabinoxylan [AX]) alters the large intestinal microbiota in terms of fermentative end products and microbial community profiles in pigs. METHODS Four groups of 10 pigs were fed Western-type diets containing two amounts of red meat, with or without a solubilized wheat AX-rich fraction for 4 wk. After euthanasia, fermentative end products (short-chain fatty acids, ammonia) of digesta from four sections of large intestine were measured. Di-amino-pimelic acid was a measure of total microbial biomass, and bacterial profiles were determined using a phylogenetic microarray. A factorial model determined effects of AX and meat content. RESULTS Arabinoxylan was highly fermentable in the cecum, as indicated by increased concentrations of short-chain fatty acids (particularly propionate). Protein fermentation end products were decreased, as indicated by the reduced ammonia and branched-chain ratio although this effect was less prominent distally. Microbial profiles in the distal large intestine differed in the presence of AX (including promotion of Faecalibacterium prausnitzii), consistent with an increase in carbohydrate versus protein fermentation. Increased di-amino-pimelic acid (P < 0.0001) suggested increased microbial biomass for animals fed AX. CONCLUSIONS Solubilized wheat AX has the potential to counteract the effects of dietary red meat by reducing protein fermentation and its resultant toxic end products such as ammonia, as well as leading to a positive shift in fermentation end products and microbial profiles in the large intestine.
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Resistant starch alters colonic contractility and expression of related genes in rats fed a Western diet. Dig Dis Sci 2015; 60:1624-32. [PMID: 25616610 DOI: 10.1007/s10620-015-3537-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 01/12/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIM Dietary fiber shortens gut transit time, but data on the effects of fiber components (including resistant starch, RS) on intestinal contractility are limited. We have examined RS effects in male Sprague-Dawley rats fed either a high-amylose maize starch (HAMS) or a wholemeal made from high-amylose wheat (HAW) on ileal and colonic contractility ex vivo and expression of genes associated with smooth muscle contractility. METHODS Rats were fed diets containing 19 % fat, 20 % protein, and either low-amylose maize starch (LAMS), HAMS, wholemeal low-amylose wheat (LAW) or HAW for 11 week. Isolated ileal and proximal colonic sections were induced to contract electrically, or by receptor-independent (KCl) or receptor-dependent agents. Colonic gene expression was assessed using an Affymetrix microarray. RESULTS Ileal contractility was unaffected by treatment. Maximal proximal colonic contractility induced electrically or by angiotensin II or carbachol was lower for rats fed HAMS and LAW relative to those fed LAMS (P < 0.05). The colonic expression of genes, including cholinergic receptors (Chrm2, Chrm3), serotonin receptors (Htr5a, Htr7), a protease-activated receptor (F2r), a prokineticin receptor (Prokr1), prokineticin (Prok1), and nitric oxide synthase 2 (Nos2), was altered by dietary HAMS relative to LAMS (P < 0.05). HAW did not significantly affect these genes or colonic contractility relative to effects of LAMS. CONCLUSIONS RS and other fiber components could influence colorectal health through modulation of stool transit time via effects on muscular contractility.
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Bach Knudsen KE. Microbial degradation of whole-grain complex carbohydrates and impact on short-chain fatty acids and health. Adv Nutr 2015; 6:206-13. [PMID: 25770259 PMCID: PMC4352179 DOI: 10.3945/an.114.007450] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Whole-grain cereals have a complex dietary fiber (DF) composition consisting of oligosaccharides (mostly fructans), resistant starch, and nonstarch polysaccharides (NSPs); the most important are arabinoxylans, mixed-linkage β(1,3; 1,4)-d-glucan (β-glucan), and cellulose and the noncarbohydrate polyphenolic ether lignin. The highest concentration of NSPs and lignin is found in the outer cell layers of the grain, and refined flour will consequently be depleted of a large proportion of insoluble DF components. The flow and composition of carbohydrates to the large intestine are directly related to the intake of DF. The type and composition of cereal DF can consequently be used to modulate the microbial composition and activity as well as the production and molar ratios of short-chain fatty acids (SCFAs). Arabinoxylans and β-glucan in whole-grain cereals and cereal ingredients have been shown to augment SCFA production, with the strongest relative effect on butyrate. When arabinoxylans were provided as a concentrate, the effect was only on total SCFA production. Increased SCFA production in the large intestine was shown by the concentration in the portal vein, whereas the impact on the concentration in peripheral blood was less because the majority of propionate and butyrate is cleared in the liver. Active microbial fermentation with increased SCFA production reduced the exposure of potentially toxic compounds to the epithelium, potentially stimulating anorectic hormones and acting as signaling molecules between the gut and the peripheral tissues. The latter can have implications for insulin sensitivity and glucose homeostasis.
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Chen H, Wang W, Degroote J, Possemiers S, Chen D, De Smet S, Michiels J. Arabinoxylan in wheat is more responsible than cellulose for promoting intestinal barrier function in weaned male piglets. J Nutr 2015; 145:51-8. [PMID: 25378684 DOI: 10.3945/jn.114.201772] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The effect of dietary fiber on intestinal function primarily has been ascribed to its interaction with intestinal bacteria in the hindgut, whereas changes in intestinal bacteria in the host have been considered to depend on fiber composition. OBJECTIVES The objectives of this study were to determine the contribution of the major fiber components to the health-promoting effects of wheat bran on intestinal mucosal barrier function and to elucidate the involvement of microbiota changes in weaned piglets. METHODS Thirty freshly weaned male piglets were assigned to 5 dietary treatment groups (n = 6) according to litter and weight. The piglets consumed synthetic diets ad libitum for 30 d, including a basal control diet (CON) without fiber components, a wheat bran diet (WB) as reference diet (10% wheat bran), and 3 other diets containing amounts of fiber components equivalent to those in the WB, i.e., an arabinoxylan diet (AX), a cellulose diet (CEL), and a combined arabinoxylan and cellulose diet (CB). RESULTS The groups consuming diets containing arabinoxylans (i.e., the WB, AX, and CB groups) had increased intestinal secretory immunoglobulin A concentrations, goblet cell number and cecal short-chain fatty acid concentrations, and reduced branched-chain fatty acid concentrations and pH values compared with the CON group. In the WB group, the stimulated secretion of Cl(-) was suppressed (60.8% and 47.5% change in short-circuit current caused by theophylline and carbachol, respectively) in the distal small intestine compared with the CON group. The AX and CB groups also had increased intestinal alkaline phosphatase activities and reduced intestinal transcellular permeability (by 77.3% and 67.2%, respectively) compared with the CON group. Meanwhile, in the WB group, cecal Bacteroidetes and Enterobacteriaceae populations were lower, and the growth of Lactobacillus was higher in the AX and CB groups than in the CON group, whereas no positive effect on intestinal barrier function was observed in the CEL group. CONCLUSION Arabinoxylan in wheat bran, and not cellulose, is mainly responsible for improving various functional components of the intestinal barrier function and the involvement of microbiota changes.
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Affiliation(s)
- Hong Chen
- Institute of Animal Nutrition, Sichuan Agriculture University, Ya'an, China; Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Production, Ghent University, Melle, Belgium
| | - Wei Wang
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Production, Ghent University, Melle, Belgium
| | - Jeroen Degroote
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Production, Ghent University, Melle, Belgium; Department of Applied Biosciences, Ghent University, Ghent, Belgium
| | | | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agriculture University, Ya'an, China;
| | - Stefaan De Smet
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Production, Ghent University, Melle, Belgium
| | - Joris Michiels
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Production, Ghent University, Melle, Belgium; Department of Applied Biosciences, Ghent University, Ghent, Belgium
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Wheat bran extract alters colonic fermentation and microbial composition, but does not affect faecal water toxicity: a randomised controlled trial in healthy subjects. Br J Nutr 2014; 113:225-38. [PMID: 25498469 DOI: 10.1017/s0007114514003523] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Wheat bran extract (WBE), containing arabinoxylan-oligosaccharides that are potential prebiotic substrates, has been shown to modify bacterial colonic fermentation in human subjects and to beneficially affect the development of colorectal cancer (CRC) in rats. However, it is unclear whether these changes in fermentation are able to reduce the risk of developing CRC in humans. The aim of the present study was to evaluate the effects of WBE on the markers of CRC risk in healthy volunteers, and to correlate these effects with colonic fermentation. A total of twenty healthy subjects were enrolled in a double-blind, cross-over, randomised, controlled trial in which the subjects ingested WBE (10 g/d) or placebo (maltodextrin, 10 g/d) for 3 weeks, separated by a 3-week washout period. At the end of each study period, colonic handling of NH3 was evaluated using the biomarker lactose[15N, 15N']ureide, colonic fermentation was characterised through a metabolomics approach, and the predominant microbial composition was analysed using denaturing gradient gel electrophoresis. As markers of CRC risk, faecal water genotoxicity was determined using the comet assay and faecal water cytotoxicity using a colorimetric cell viability assay. Intake of WBE induced a shift from urinary to faecal 15N excretion, indicating a stimulation of colonic bacterial activity and/or growth. Microbial analysis revealed a selective stimulation of Bifidobacterium adolescentis. In addition, WBE altered the colonic fermentation pattern and significantly reduced colonic protein fermentation compared with the run-in period. However, faecal water cytotoxicity and genotoxicity were not affected. Although intake of WBE clearly affected colonic fermentation and changed the composition of the microbiota, these changes were not associated with the changes in the markers of CRC risk.
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Colorectal carcinogenesis: a cellular response to sustained risk environment. Int J Mol Sci 2013; 14:13525-41. [PMID: 23807509 PMCID: PMC3742201 DOI: 10.3390/ijms140713525] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 06/07/2013] [Accepted: 06/14/2013] [Indexed: 12/13/2022] Open
Abstract
The current models for colorectal cancer (CRC) are essentially linear in nature with a sequential progression from adenoma through to carcinoma. However, these views of CRC development do not explain the full body of published knowledge and tend to discount environmental influences. This paper proposes that CRC is a cellular response to prolonged exposure to cytotoxic agents (e.g., free ammonia) as key events within a sustained high-risk colonic luminal environment. This environment is low in substrate for the colonocytes (short chain fatty acids, SCFA) and consequently of higher pH with higher levels of free ammonia and decreased mucosal oxygen supply as a result of lower visceral blood flow. All of these lead to greater and prolonged exposure of the colonic epithelium to a cytotoxic agent with diminished aerobic energy availability. Normal colonocytes faced with this unfavourable environment can transform into CRC cells for survival through epigenetic reprogramming to express genes which increase mobility to allow migration and proliferation. Recent data with high protein diets confirm that genetic damage can be increased, consistent with greater CRC risk. However, this damage can be reversed by increasing SCFA supply by feeding fermentable fibre as resistant starch or arabinoxylan. High protein, low carbohydrate diets have been shown to alter the colonic environment with lower butyrate levels and apparently greater mucosal exposure to ammonia, consistent with our hypothesis. Evidence is drawn from in vivo and in vitro genomic and biochemical studies to frame experiments to test this proposition.
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