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Fitzpatrick JA, Gibson PR, Taylor KM, Halmos EP. The effect of dietary emulsifiers and thickeners on intestinal barrier function and its response to acute stress in healthy adult humans: A randomised controlled feeding study. Aliment Pharmacol Ther 2024. [PMID: 39072856 DOI: 10.1111/apt.18172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/23/2024] [Accepted: 07/10/2024] [Indexed: 07/30/2024]
Abstract
BACKGROUND Although dietary emulsifiers are implicated in the pathogenesis of Crohn's disease, their effect has not been studied in humans. AIM To determine the effects of high- and low-emulsifier diets (HED, LED) on intestinal barrier function in healthy subjects in unstressed and acutely stressed states. METHODS We conducted a single-blinded, cross-over, controlled feeding trial in 22 healthy adults. After recording 7 days of their habitual diet, we randomised participants to HED or LED with ≥3-week washout between diets. On dietary completion, acute stress was induced via intravenous corticotrophin-releasing hormone. We assessed dietary adherence, effects on 2-h urinary lactulose: rhamnose ratio (LRR), serum concentrations of lipopolysaccharide-binding protein, soluble-CD14 and markers of epithelial injury and inflammation. RESULTS Dietary adherence was excellent. In an unstressed state, median (interquartile range) LRR during HED was 0.030 (0.018-0.042); on LED, this was 0.042 (0.029-0.078; p = 0.04). LPB concentrations were lower on HED than LED (p = 0.026), but no differences were observed for epithelial injury or inflammation. Under acute stress, LRR increased by 89% (-1% to 486%) on HED (p = 0.004), differing (p = 0.001) from 39% (1%-90%) decrease on LED (p = 0.009). Soluble-CD14 also increased (p < 0.001). The LED had a prolonged carry-over effect on suppressing HED-induced changes during stress. Similar changes in LRR and soluble-CD14 were observed when HED was used as the first diet (both p < 0.01). CONCLUSION High intake of emulsifiers improved barrier function in the unstressed state, but increased intestinal permeability to stress, without evidence of inflammation. A LED was protective of the stress effect.
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Affiliation(s)
| | - Peter R Gibson
- Department of Gastroenterology, Monash University, Melbourne, Victoria, Australia
| | - Kirstin M Taylor
- Department of Gastroenterology, Monash University, Melbourne, Victoria, Australia
| | - Emma P Halmos
- Department of Gastroenterology, Monash University, Melbourne, Victoria, Australia
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Zhang L, Yan J, Zhang C, Feng S, Zhan Z, Bao Y, Zhang S, Chao G. Improving intestinal inflammaging to delay aging? A new perspective. Mech Ageing Dev 2023; 214:111841. [PMID: 37393959 DOI: 10.1016/j.mad.2023.111841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/14/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Abstract
Greying population is becoming an increasingly critical issue for social development. In advanced aging context, organismal multiple tissues and organs experience a progressive deterioration, initially presenting with functional decline, followed by structural disruption and eventually organ failure. The aging of the gut is one of the key links. Decreased gut function leads to reduced nutrient absorption and can perturb systemic metabolic rates. The degeneration of the intestinal structure causes the migration of harmful components such as pathogens and toxins, inducing pathophysiological changes in other organs through the "brain-gut axis" and "liver-gut axis". There is no accepted singular underlying mechanism of aged gut. While the inflamm-aging theory was first proposed in 2000, the mutual promotion of chronic inflammation and aging has attracted much attention. Numerous studies have established that gut microbiome composition, gut immune function, and gut barrier integrity are involved in the formation of inflammaging in the aging gut. Remarkably, inflammaging additionally drives the development of aging-like phenotypes, such as microbiota dysbiosis and impaired intestinal barrier, via a broad array of inflammatory mediators. Here we demonstrate the mechanisms of inflammaging in the gut and explore whether aging-like phenotypes in the gut can be negated by improving gut inflammaging.
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Affiliation(s)
- Lan Zhang
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Junbin Yan
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, The Xin Hua Hospital of Zhejiang Province, Hangzhou 310000, China
| | - Chi Zhang
- Endoscopic Center, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Shuyan Feng
- Zhejiang Chinese Medical University, Hangzhou 310000, China
| | - Zheli Zhan
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Yang Bao
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China
| | - Shuo Zhang
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, The Xin Hua Hospital of Zhejiang Province, Hangzhou 310000, China.
| | - Guanqun Chao
- Department of General Practice, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310000, China.
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Wei W, Wong CC, Jia Z, Liu W, Liu C, Ji F, Pan Y, Wang F, Wang G, Zhao L, Chu ESH, Zhang X, Sung JJY, Yu J. Parabacteroides distasonis uses dietary inulin to suppress NASH via its metabolite pentadecanoic acid. Nat Microbiol 2023; 8:1534-1548. [PMID: 37386075 PMCID: PMC10390331 DOI: 10.1038/s41564-023-01418-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/26/2023] [Indexed: 07/01/2023]
Abstract
Non-alcoholic steatohepatitis (NASH) is the severe form of non-alcoholic fatty liver disease, and is characterized by liver inflammation and fat accumulation. Dietary interventions, such as fibre, have been shown to alleviate this metabolic disorder in mice via the gut microbiota. Here, we investigated the mechanistic role of the gut microbiota in ameliorating NASH via dietary fibre in mice. Soluble fibre inulin was found to be more effective than insoluble fibre cellulose to suppress NASH progression in mice, as shown by reduced hepatic steatosis, necro-inflammation, ballooning and fibrosis. We employed stable isotope probing to trace the incorporation of 13C-inulin into gut bacterial genomes and metabolites during NASH progression. Shotgun metagenome sequencing revealed that the commensal Parabacteroides distasonis was enriched by 13C-inulin. Integration of 13C-inulin metagenomes and metabolomes suggested that P. distasonis used inulin to produce pentadecanoic acid, an odd-chain fatty acid, which was confirmed in vitro and in germ-free mice. P. distasonis or pentadecanoic acid was protective against NASH in mice. Mechanistically, inulin, P. distasonis or pentadecanoic acid restored gut barrier function in NASH models, which reduced serum lipopolysaccharide and liver pro-inflammatory cytokine expression. Overall this shows that gut microbiota members can use dietary fibre to generate beneficial metabolites to suppress metabolic disease.
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Affiliation(s)
- Wenchao Wei
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chi Chun Wong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Zhongjun Jia
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
- Institute of Soil Science, Chinese Academy of Science, Nanjing, China
| | - Weixin Liu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Changan Liu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Fenfen Ji
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yasi Pan
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Feixue Wang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Guoping Wang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Liuyang Zhao
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Eagle S H Chu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiang Zhang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Joseph J Y Sung
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China.
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Li Y, Li C, Muhammad Aqeel S, Wang Y, Zhang Q, Ma J, Zhou J, Li J, Du G, Liu S. Enhanced expression of xylanase in Aspergillus niger enabling a two-step enzymatic pathway for extracting β-glucan from oat bran. BIORESOURCE TECHNOLOGY 2023; 377:128962. [PMID: 36966944 DOI: 10.1016/j.biortech.2023.128962] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 06/18/2023]
Abstract
The high cost and process complexity limit the enzymatic extraction of β-glucan. In this study, β-glucan was extracted from oat bran in a two-step enzymatic pathway using a recombinant strain of Aspergillus niger AG11 overexpressing the endogenous xylanase (xynA) and amylolytic enzyme. First, co-optimization of promoter and signal peptide and a fusion of glucoamylase (glaA) fragment were integrated into the β-glucosidase (bgl) locus to improve xynA expression. Then, the optimized expression cassette was simultaneously integrated into bgl, α-amylase amyA, and acid α-amylase ammA loci, yielding the Rbya with 3,650-fold and 31.2% increase in xynA and amylolytic enzyme activity than the wild-type strain, respectively. Finally, Rbya's supernatants at 72 h (rich in xynA and amylolytic enzyme) and 10 d (rich in proteases) were used to decompose xylan/starch and proteins in oat bran, respectively, to obtain 85.1% pure β-glucan. Rbya could be a robust candidate for the cost-effective extraction of β-glucan.
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Affiliation(s)
- Yangyang Li
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Cen Li
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang 550025, China
| | - Sahibzada Muhammad Aqeel
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Yachan Wang
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Quan Zhang
- Dalian Research Institute of Petrolem and Petrochemicals, SINOPEC, Dalian 116000, China
| | - Jianing Ma
- School of Chemical Engineering, Dalian University of Technology, Dalian 116000, China
| | - Jingwen Zhou
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jianghua Li
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Guocheng Du
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Song Liu
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
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Stillhart C, Asteriadis A, Bocharova E, Eksteen G, Harder F, Kusch J, Tzakri T, Augustijns P, Matthys C, Vertzoni M, Weitschies W, Reppas C. The impact of advanced age on gastrointestinal characteristics that are relevant to oral drug absorption: An AGePOP review. Eur J Pharm Sci 2023; 187:106452. [PMID: 37098371 DOI: 10.1016/j.ejps.2023.106452] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/12/2023] [Accepted: 04/21/2023] [Indexed: 04/27/2023]
Abstract
The purpose of this review is to summarize the current knowledge on three physiological determinants of oral drug absorption, i.e., gastric emptying, volumes and composition of luminal fluids, and intestinal permeability, in the advanced age population, so that potential knowledge gaps and directions for further research efforts are identified. Published data on gastric emptying rates in older people are conflicting. Also, there are significant knowledge gaps, especially on gastric motility and emptying rates of drugs and of non-caloric fluids. Compared with younger adults, volumes of luminal contents seem to be slightly smaller in older people. Our understanding on the impact of advanced age on luminal physicochemical characteristics is, at best, very limited, whereas the impact of (co)morbidities and geriatric syndromes in the advanced age population has not been addressed to date. The available literature on the effect of advanced age on intestinal permeability is limited, and should be approached with caution, primarily due to the limitations of the experimental methodologies used.
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Affiliation(s)
| | - Adam Asteriadis
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Ekaterina Bocharova
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Gabriel Eksteen
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Fritz Harder
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Jonas Kusch
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Theodora Tzakri
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Patrick Augustijns
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Belgium
| | - Christophe Matthys
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium
| | - Maria Vertzoni
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Werner Weitschies
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Christos Reppas
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece.
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Su W, Jiang Z, Wang C, Zhang Y, Gong T, Wang F, Jin M, Wang Y, Lu Z. Co-fermented defatted rice bran alters gut microbiota and improves growth performance, antioxidant capacity, immune status and intestinal permeability of finishing pigs. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2022; 11:413-424. [PMID: 36382202 PMCID: PMC9640948 DOI: 10.1016/j.aninu.2022.07.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 03/15/2022] [Accepted: 07/25/2022] [Indexed: 05/19/2023]
Abstract
Based on preparation of co-fermented defatted rice bran (DFRB) using Bacillus subtilis, Saccharomyces cerevisiae, Lactobacillus plantarum and phytase, the present study aimed to evaluate the effects of co-fermented DFRB on growth performance, antioxidant capacity, immune status, gut microbiota and permeability in finishing pigs. Ninety finishing pigs (85.30 ± 0.97 kg) were randomly assigned to 3 treatments (3 replicates/treatment) with a basal diet (Ctrl), a basal diet supplemented with 10% unfermented DFRB (UFR), and a basal diet supplemented with 10% fermented DFRB (FR) for 30 d. Results revealed that the diet supplemented with FR notably (P < 0.05) improved the average daily gain (ADG), gain to feed ratio (G:F) and the digestibility of crude protein, amino acids and dietary fiber of finishing pigs compared with UFR. Additionally, FR supplementation significantly (P < 0.05) increased total antioxidant capacity, the activities of superoxide dismutase and catalase, and decreased the content of malonaldehyde in serum. Furthermore, FR remarkably (P < 0.05) increased serum levels of IgG, anti-inflammatory cytokines (IL-22 and IL-23) and reduced pro-inflammatory cytokines (TNF-α, IL-1β and INF-γ). The decrease of serum diamine oxidase activity and serum D-lactate content in the FR group (P < 0.05) suggested an improvement in intestinal permeability. Supplementation of FR also elevated the content of acetate and butyrate in feces (P < 0.05). Moreover, FR enhanced gut microbial richness and the abundance of fiber-degrading bacteria such as Clostridium butyricum and Lactobacillus amylovorus. Correlation analyses indicated dietary fiber in FR was associated with improvements in immune status, intestinal permeability and the level of butyrate-producing microbe C. butyricum, which was also verified by the in vitro fermentation analysis. These findings provided an experimental and theoretical basis for the application of fermented DFRB in finishing pigs.
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Affiliation(s)
- Weifa Su
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Zipeng Jiang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Cheng Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Yu Zhang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Tao Gong
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Fengqin Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Mingliang Jin
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Yizhen Wang
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
| | - Zeqing Lu
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed, Ministry of Agriculture, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Key Laboratory of Animal Nutrition and Feed Science of Zhejiang Province, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- College of Animal Science, Institute of Feed Science, Zhejiang University, 866 Yuhang Tang Road, Hangzhou, Zhejiang 310058, China
- Corresponding author.
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Gut Health and Its Association with Wellbeing and Nutrient Intake in Community-Dwelling Older Adults. GASTROENTEROLOGY INSIGHTS 2022. [DOI: 10.3390/gastroent13040035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Many of the increasing number of community-dwelling older adults will need increased healthcare in the future. By characterising gut health and its association with wellbeing and nutrient intake in this population, we aim to recognise areas along the gut–brain axis through which the health of community-dwelling older adults might be promoted. In this cross-sectional observational study, validated questionnaires were used to assess gut health, nutrient intake, and wellbeing in 241 community-dwelling older adults (≥65 years old). In total, 65% of the participants experienced at least one gastrointestinal symptom, of which females had more abdominal pain and constipation, while the oldest old (i.e., ≥80 years old) had more diarrhoea. Increased gastrointestinal symptoms correlated with more stress, anxiety, depression, and a decreased quality of life, in addition to dyspepsia which correlated with a lower E% of protein. Most of the participants did not reach the recommended intake for protein, fibre and polyunsaturated fats. Males had a lower intake of protein (E%) and fibre (g/MJ) than females, and the oldest old had a lower E% of protein than younger older adults. In conclusion, our results demonstrate that gastrointestinal symptoms are common, and most of the study participants had an imbalanced macronutrient intake, which could be a target for future possible dietary interventions to improve overall health.
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8
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Zhang B, Zhong Y, Dong D, Zheng Z, Hu J. Gut microbial utilization of xylan and its implication in gut homeostasis and metabolic response. Carbohydr Polym 2022; 286:119271. [DOI: 10.1016/j.carbpol.2022.119271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 12/16/2022]
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Kocot AM, Jarocka-Cyrta E, Drabińska N. Overview of the Importance of Biotics in Gut Barrier Integrity. Int J Mol Sci 2022; 23:ijms23052896. [PMID: 35270039 PMCID: PMC8911280 DOI: 10.3390/ijms23052896] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 02/07/2023] Open
Abstract
Increased gut permeability is suggested to be involved in the pathogenesis of a growing number of disorders. The altered intestinal barrier and the subsequent translocation of bacteria or bacterial products into the internal milieu of the human body induce the inflammatory state. Gut microbiota maintains intestinal epithelium integrity. Since dysbiosis contributes to increased gut permeability, the interventions that change the gut microbiota and correct dysbiosis are suggested to also restore intestinal barrier function. In this review, the current knowledge on the role of biotics (probiotics, prebiotics, synbiotics and postbiotics) in maintaining the intestinal barrier function is summarized. The potential outcome of the results from in vitro and animal studies is presented, and the need for further well-designed randomized clinical trials is highlighted. Moreover, we indicate the need to understand the mechanisms by which biotics regulate the function of the intestinal barrier. This review is concluded with the future direction and requirement of studies involving biotics and gut barrier.
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Affiliation(s)
- Aleksandra Maria Kocot
- Department of Immunology and Food Microbiology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences in Olsztyn, Tuwima 10, 10-748 Olsztyn, Poland;
| | - Elżbieta Jarocka-Cyrta
- Department of Pediatrics, Gastroenterology and Nutrition, School of Medicine, Collegium Medicum University of Warmia and Mazury, Regional Specialized Children’s Hospital, Żołnierska St. 18A, 10-561 Olsztyn, Poland;
| | - Natalia Drabińska
- Department of Chemistry and Biodynamics of Food, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
- Correspondence:
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10
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Brandl B, Rennekamp R, Reitmeier S, Pietrynik K, Dirndorfer S, Haller D, Hofmann T, Skurk T, Hauner H. Offering Fiber-Enriched Foods Increases Fiber Intake in Adults With or Without Cardiometabolic Risk: A Randomized Controlled Trial. Front Nutr 2022; 9:816299. [PMID: 35252300 PMCID: PMC8890034 DOI: 10.3389/fnut.2022.816299] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/17/2022] [Indexed: 12/18/2022] Open
Abstract
Introduction Previous efforts to increase fiber intake in the general population were disappointing despite growing awareness of the multiple benefits of a high fiber intake. Aim of the study was to investigate the acceptance and consumption of fiber-enriched foods. Methods One hundred and fifteen middle-aged healthy individuals with and without elevated waist circumference (> 102 cm in males and > 88 cm in females) were recruited and randomized to an intervention or an age- and sex-matched control group. Subjects assigned to the intervention group were invited to select fiber-enriched foods from a broad portfolio of products to increase fiber intake by 10 g/day. Control subjects could choose items from the same food basket without fiber enrichment. The primary outcome was the increase in dietary fiber intake, and secondary outcomes were changes in cardiometabolic risk factors, microbiota composition, food choices, and consumer acceptance of the fiber-enriched foods. Results Compared to baseline, daily fiber intake increased from 22.5 ± 8.0 to 34.0 ± 9.6 g/day after 4 weeks (p < 0.001) and to 36.0 ± 8.9 g/day after 12 weeks (p < 0.001) in the intervention group, whereas fiber intake remained unchanged in the control group. Participants rated the taste of the food products as pleasant without group differences. In both groups, the most liked foods included popular convenience foods such as pretzel breadstick, pizza salami, and pizza vegetarian. After 12 weeks of intervention, there were minor improvements in plasma lipids and parameters of glucose metabolism in both the intervention and control group compared to baseline, but no differences between the two groups. Increased fiber consumption resulted in an increased (p < 0.001) relative abundance of Tannerellaceae. Conclusions Fiber-enrichment of popular foods increases fiber intake in a middle-aged population with and without cardiometabolic risk and may provide a simple, novel strategy to increase fiber intake in the population.
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Affiliation(s)
- Beate Brandl
- ZIEL-Institute for Food and Health, Technical University of Munich, Freising, Germany
- Chair of Nutritional Medicine, Else Kroener-Fresenius-Centre for Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Rachel Rennekamp
- Chair of Nutritional Medicine, Else Kroener-Fresenius-Centre for Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Sandra Reitmeier
- ZIEL-Institute for Food and Health, Technical University of Munich, Freising, Germany
| | - Katarzyna Pietrynik
- Chair of Nutritional Medicine, Else Kroener-Fresenius-Centre for Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Sebastian Dirndorfer
- Chair of Food Chemistry and Molecular Sensory Science, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Dirk Haller
- ZIEL-Institute for Food and Health, Technical University of Munich, Freising, Germany
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
| | - Thomas Hofmann
- Chair of Food Chemistry and Molecular Sensory Science, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Thomas Skurk
- ZIEL-Institute for Food and Health, Technical University of Munich, Freising, Germany
- Chair of Nutritional Medicine, Else Kroener-Fresenius-Centre for Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Hans Hauner
- Chair of Nutritional Medicine, Else Kroener-Fresenius-Centre for Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
- Institute of Nutritional Medicine, School of Medicine, Technical University of Munich, Munich, Germany
- *Correspondence: Hans Hauner
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11
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Fortea M, Albert-Bayo M, Abril-Gil M, Ganda Mall JP, Serra-Ruiz X, Henao-Paez A, Expósito E, González-Castro AM, Guagnozzi D, Lobo B, Alonso-Cotoner C, Santos J. Present and Future Therapeutic Approaches to Barrier Dysfunction. Front Nutr 2021; 8:718093. [PMID: 34778332 PMCID: PMC8582318 DOI: 10.3389/fnut.2021.718093] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/29/2021] [Indexed: 12/12/2022] Open
Abstract
There is converging and increasing evidence, but also uncertainty, for the role of abnormal intestinal epithelial barrier function in the origin and development of a growing number of human gastrointestinal and extraintestinal inflammatory disorders, and their related complaints. Despite a vast literature addressing factors and mechanisms underlying changes in intestinal permeability in humans, and its connection to the appearance and severity of clinical symptoms, the ultimate link remains to be established in many cases. Accordingly, there are no directives or clinical guidelines related to the therapeutic management of intestinal permeability disorders that allow health professionals involved in the management of these patients to carry out a consensus treatment based on clinical evidence. Instead, there are multiple pseudoscientific approaches and commercial propaganda scattered on the internet that confuse those affected and health professionals and that often lack scientific rigor. Therefore, in this review we aim to shed light on the different therapeutic options, which include, among others, dietary management, nutraceuticals and medical devices, microbiota and drugs, and epigenetic and exosomes-manipulation, through an objective evaluation of the scientific publications in this field. Advances in the knowledge and management of intestinal permeability will sure enable better options of dealing with this group of common disorders to enhance quality of life of those affected.
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Affiliation(s)
- Marina Fortea
- Laboratory for Enteric NeuroScience, Translational Research Center for GastroIntestinal Disorders, University of Leuven, Leuven, Belgium
| | - Mercé Albert-Bayo
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - Mar Abril-Gil
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - John-Peter Ganda Mall
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Xavier Serra-Ruiz
- Department of Gastroenterology, Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - Alejandro Henao-Paez
- Department of Gastroenterology, Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - Elba Expósito
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - Ana María González-Castro
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
| | - Danila Guagnozzi
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Department of Gastroenterology, Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Facultad de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERHED), Instituto de Salud Carlos III, Madrid, Spain
| | - Beatriz Lobo
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Department of Gastroenterology, Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Facultad de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Carmen Alonso-Cotoner
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Department of Gastroenterology, Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Facultad de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERHED), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier Santos
- Laboratory of Neuro-Immuno-Gastroenterology, Digestive System Research Unit, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Department of Gastroenterology, Vall d'Hebron Hospital Universitari, Barcelona, Spain
- Facultad de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERHED), Instituto de Salud Carlos III, Madrid, Spain
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12
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Napier C, Grobbelaar H, Oldewage-Theron W. An introduction to the Food-Based Dietary Guidelines for the Elderly in South Africa. SOUTH AFRICAN JOURNAL OF CLINICAL NUTRITION 2021. [DOI: 10.1080/16070658.2021.1950376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Carin Napier
- Department of Food & Nutrition Consumer Sciences, Durban University of Technology, Durban, South Africa
- Centre for Longitudinal Research, The University of Auckland, Auckland, New Zealand
| | - Heleen Grobbelaar
- Department of Food & Nutrition Consumer Sciences, Durban University of Technology, Durban, South Africa
| | - Wilna Oldewage-Theron
- Department of Nutritional Sciences, Texas Tech University, Lubbock, Texas, USA
- Department of Sustainable Food Systems and Development, University of the Free State, Bloemfontein, South Africa
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13
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Wellard L, Medyk K, Pearson W. Effects of a nutraceutical supplement on gastrointestinal health in racing standardbreds. J Anim Physiol Anim Nutr (Berl) 2021; 105:558-568. [PMID: 33675264 DOI: 10.1111/jpn.13508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 11/09/2020] [Accepted: 12/14/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Feed additives that accelerate gastrointestinal transit time may help support normal gastrointestinal function in horses at risk for impaction colic. Previous research has demonstrated significant stimulatory effect of a hemp-based nutraceutical product (Gs Formula; GF) on contractility of gastric smooth muscle and gastrin production in vitro. OBJECTIVES To quantify effects of GF on indicators of GIT transit time and tight junction proteins. STUDY DESIGN Randomized placebo-controlled cross-over study. METHODS Eight Standardbreds were administered 200 plastic beads by nasogastric tube before (baseline; BL) and after receiving a diet containing GF (CON: 0 g/day, LO: 160 g/day or HI: 480 g/day) for 28 days. Total manure collection occurred every 2 hours for 72 hours after bead administration. Outcome measures included GIT transit time, faecal dry matter (DM), water intake, and complete biochemistry and haematology screens. RESULTS There was no effect of GF on GIT transit time. Faecal output was significantly lower in LO and HI horses than CON horses after 28 days on the supplement. HI horses have significantly lower rouleaux formation and lower faecal DM on Day 28 compared with BL. GF also produced changes in electrolytes associated with pH balance, which may indicate a role for GF as an alkalinizing compound in exercising horses. Clinical pathology results support the safety of GF up to 480 g/day for 28 days with no adverse effects being observed in haematology or biochemistry results. MAIN LIMITATIONS Future studies on GF should focus on evaluating effect of GF on gastrointestinal transit in horses with naturally or experimentally delayed gastrointestinal motility, and its effect on exercise performance and onset of fatigue. CONCLUSIONS GF may help support normal gastrointestinal function in horses at risk for impaction colic by reducing faecal DM and rouleaux formation.
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Affiliation(s)
- Leah Wellard
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Katryna Medyk
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Wendy Pearson
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
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14
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Alemao CA, Budden KF, Gomez HM, Rehman SF, Marshall JE, Shukla SD, Donovan C, Forster SC, Yang IA, Keely S, Mann ER, El Omar EM, Belz GT, Hansbro PM. Impact of diet and the bacterial microbiome on the mucous barrier and immune disorders. Allergy 2021; 76:714-734. [PMID: 32762040 DOI: 10.1111/all.14548] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 07/10/2020] [Accepted: 07/30/2020] [Indexed: 12/11/2022]
Abstract
The prevalence of chronic immune and metabolic disorders is increasing rapidly. In particular, inflammatory bowel diseases, obesity, diabetes, asthma and chronic obstructive pulmonary disease have become major healthcare and economic burdens worldwide. Recent advances in microbiome research have led to significant discoveries of associative links between alterations in the microbiome and health, as well as these chronic supposedly noncommunicable, immune/metabolic disorders. Importantly, the interplay between diet, microbiome and the mucous barrier in these diseases has gained significant attention. Diet modulates the mucous barrier via alterations in gut microbiota, resulting in either disease onset/exacerbation due to a "poor" diet or protection against disease with a "healthy" diet. In addition, many mucosa-associated disorders possess a specific gut microbiome fingerprint associated with the composition of the mucous barrier, which is further influenced by host-microbiome and inter-microbial interactions, dietary choices, microbe immigration and antimicrobials. Our review focuses on the interactions of diet (macronutrients and micronutrients), gut microbiota and mucous barriers (gastrointestinal and respiratory tract) and their importance in the onset and/or progression of major immune/metabolic disorders. We also highlight the key mechanisms that could be targeted therapeutically to prevent and/or treat these disorders.
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Affiliation(s)
- Charlotte A. Alemao
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Kurtis F. Budden
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Henry M. Gomez
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Saima F. Rehman
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Jacqueline E. Marshall
- Faculty of Science Centre for Inflammation Centenary Institute University of Technology Sydney Sydney NSW Australia
| | - Shakti D. Shukla
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Chantal Donovan
- Faculty of Science Centre for Inflammation Centenary Institute University of Technology Sydney Sydney NSW Australia
| | - Samuel C. Forster
- Department of Molecular and Translational Sciences Hudson Institute of Medical Research Centre for Innate Immunity and Infectious Diseases Monash University Clayton VIC Australia
| | - Ian A. Yang
- Thoracic Program The Prince Charles Hospital Metro North Hospital and Health Service Brisbane QLD Australia
- Faculty of Medicine UQ Thoracic Research Centre The University of Queensland Brisbane QLD Australia
| | - Simon Keely
- Hunter Medical Research Institute Priority Research Centre for Digestive Health and Neurogastroenterology University of Newcastle New Lambton Heights NSW Australia
| | - Elizabeth R. Mann
- Lydia Becker Institute of Immunology and Inflammation University of Manchester Manchester UK
- Faculty of Biology Medicine and Health Manchester Collaborative Centre for Inflammation Research Manchester Academic Health Science Centre University of Manchester Manchester UK
| | - Emad M. El Omar
- St George & Sutherland Clinical School Microbiome Research Centre University of New South Wales Sydney NSW Australia
| | - Gabrielle T. Belz
- Diamantina Institute University of Queensland Woolloongabba QLD Australia
- Department of Medical Biology Walter and Eliza Hall Institute of Medical Research University of Melbourne Parkville VIC Australia
| | - Philip M. Hansbro
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
- Faculty of Science Centre for Inflammation Centenary Institute University of Technology Sydney Sydney NSW Australia
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15
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Fart F, Rajan SK, Wall R, Rangel I, Ganda-Mall JP, Tingö L, Brummer RJ, Repsilber D, Schoultz I, Lindqvist CM. Differences in Gut Microbiome Composition between Senior Orienteering Athletes and Community-Dwelling Older Adults. Nutrients 2020; 12:nu12092610. [PMID: 32867153 PMCID: PMC7551621 DOI: 10.3390/nu12092610] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/14/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Gastrointestinal (GI) health is an important aspect of general health. Gastrointestinal symptoms are of specific importance for the elderly, an increasing group globally. Hence, promoting the elderly’s health and especially gastrointestinal health is important. Gut microbiota can influence gastrointestinal health by modulation of the immune system and the gut–brain axis. Diverse gut microbiota have been shown to be beneficial; however, for the elderly, the gut microbiota is often less diverse. Nutrition and physical activity, in particular, are two components that have been suggested to influence composition or diversity. Materials and Methods: In this study, we compared gut microbiota between two groups of elderly individuals: community-dwelling older adults and physically active senior orienteering athletes, where the latter group has less gastrointestinal symptoms and a reported better well-being. With this approach, we explored if certain gut microbiota were related to healthy ageing. The participant data and faecal samples were collected from these two groups and the microbiota was whole-genome sequenced and taxonomically classified with MetaPhlAn. Results: The physically active senior orienteers had a more homogeneous microbiota within the group and a higher abundance of Faecalibacterium prausnitzii compared to the community-dwelling older adults. Faecalibacterium prausnitzii has previously shown to have beneficial properties. Senior orienteers also had a lower abundance of Parasutterella excrementihominis and Bilophila unclassified, which have been associated with impaired GI health. We could not observe any difference between the groups in terms of Shannon diversity index. Interestingly, a subgroup of community-dwelling older adults showed an atypical microbiota profile as well as the parameters for gastrointestinal symptoms and well-being closer to senior orienteers. Conclusions: Our results suggest specific composition characteristics of healthy microbiota in the elderly, and show that certain components of nutrition as well as psychological distress are not as tightly connected with composition or diversity variation in faecal microbiota samples.
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Affiliation(s)
- Frida Fart
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - Sukithar Kochappi Rajan
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - Rebecca Wall
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - Ignacio Rangel
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - John Peter Ganda-Mall
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
- Laboratory of Translational Mucosal Immunology, Digestive Diseases Research Unit, Vall d’Hebron Institut de Recerca, Hospital Universitari Vall d’Hebron, 08035 Barcelona, Spain
| | - Lina Tingö
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - Robert J. Brummer
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - Dirk Repsilber
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - Ida Schoultz
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
| | - Carl Mårten Lindqvist
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 702 81 Örebro, Sweden; (F.F.); (S.K.R.); (R.W.); (I.R.); (J.P.G.-M.); (L.T.); (R.J.B.); (D.R.); (I.S.)
- Correspondence:
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16
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Acute Effects of Butyrate on Induced Hyperpermeability and Tight Junction Protein Expression in Human Colonic Tissues. Biomolecules 2020; 10:biom10050766. [PMID: 32422994 PMCID: PMC7277647 DOI: 10.3390/biom10050766] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/03/2020] [Accepted: 05/07/2020] [Indexed: 12/14/2022] Open
Abstract
Intact intestinal barrier function is essential for maintaining intestinal homeostasis. A dysfunctional intestinal barrier can lead to local and systemic inflammation through translocation of luminal antigens and has been associated with a range of health disorders. Butyrate, a short-chain fatty acid derived from microbial fermentation of dietary fibers in the colon, has been described as an intestinal barrier-strengthening agent, although mainly by using in vitro and animal models. This study aimed to investigate butyrate’s ability to prevent intestinal hyperpermeability, induced by the mast cell degranulator Compound 48/80 (C48/80), in human colonic tissues. Colonic biopsies were collected from 16 healthy subjects and intestinal permeability was assessed by Ussing chamber experiments. Furthermore, the expression levels of tight junction-related proteins were determined by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Pre-treatment with 5 mM butyrate or 25 mM butyrate did not protect the colonic tissue against induced paracellular or transcellular hyperpermeability, measured by FITC-dextran and horseradish peroxidase passage, respectively. Biopsies treated with 25 mM butyrate prior to stimulation with C48/80 showed a reduced expression of claudin 1. In conclusion, this translational ex vivo study did not demonstrate an acute protective effect of butyrate against a chemical insult to the intestinal barrier in healthy humans.
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17
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Wilms E, Troost FJ, Elizalde M, Winkens B, de Vos P, Mujagic Z, Jonkers DMAE, Masclee AAM. Intestinal barrier function is maintained with aging - a comprehensive study in healthy subjects and irritable bowel syndrome patients. Sci Rep 2020; 10:475. [PMID: 31949225 PMCID: PMC6965102 DOI: 10.1038/s41598-019-57106-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 12/19/2019] [Indexed: 01/12/2023] Open
Abstract
Animal studies have shown that intestinal barrier function is compromised with aging. We aimed to assess the effects of aging on intestinal barrier function in humans in vivo and ex vivo. In this cross-sectional study, healthy subjects and subjects with irritable bowel syndrome (IBS) of older (65–75 years) and young adult age (18–40 years) were compared. In vivo gastrointestinal site-specific permeability was assessed by a multi-sugar test, taking into account potential confounders. Sigmoid biopsies were collected from subgroups of healthy young adults and elderly for ex vivo Ussing chamber experiments, gene transcription of barrier-related genes and staining of junctional proteins. No significant differences between healthy young adults and elderly were found for small intestinal, colonic and whole gut permeability (P ≥ 0.142). In IBS patients, gastroduodenal and colonic permeability did not differ significantly (P ≥ 0.400), but small intestinal and whole gut permeability were higher in elderly versus young adults (P ≤ 0.009), mainly driven by the IBS-diarrhea subtype. Ussing chamber experiments with or without stressor (P ≥ 0.052), and relative expression of intestinal barrier-related genes (P ≥ 0.264) showed no significant differences between healthy elderly and young adults, as confirmed by immunofluorescent stainings. Overall, the functional capacity of the intestinal barrier is maintained in elderly.
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Affiliation(s)
- Ellen Wilms
- Division Gastroenterology-Hepatology, Department of Internal Medicine; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands. .,Top Institute Food and Nutrition, Wageningen, The Netherlands.
| | - Freddy J Troost
- Division Gastroenterology-Hepatology, Department of Internal Medicine; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.,Food Innovation and Health Research, Centre for Healthy Eating and Food Innovation, Maastricht University, Venlo, The Netherlands
| | - Montserrat Elizalde
- Division Gastroenterology-Hepatology, Department of Internal Medicine; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Bjorn Winkens
- Department of Methodology and Statistics; CAPHRI, Care and Public Health Research Institute, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Department of Pathology and Medical Biology, section Immunoendocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Zlatan Mujagic
- Division Gastroenterology-Hepatology, Department of Internal Medicine; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Daisy M A E Jonkers
- Division Gastroenterology-Hepatology, Department of Internal Medicine; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Ad A M Masclee
- Division Gastroenterology-Hepatology, Department of Internal Medicine; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
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Wang H, Li P, Du T, Pu G, Fan L, Gao C, Niu P, Wu C, Zhou W, Huang R. Effects of Increasing Levels of Defatted Rice Bran on Intestinal Physical Barrier and Bacteria in Finishing Pigs. Animals (Basel) 2019; 9:ani9121039. [PMID: 31795068 PMCID: PMC6940934 DOI: 10.3390/ani9121039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 11/18/2019] [Accepted: 11/25/2019] [Indexed: 01/19/2023] Open
Abstract
The aims of this study were to assess the effects of increasing levels of DFRB as a replacement for corns on intestinal physical barrier function and bacteria of finishing pigs. A total of 35 castrated finishing pigs (age: 158.5 ± 2.0 d, initial body weight: 62.9 ± 0.8 kg) were randomly divided into five dietary treatments (seven replicates/treatment) for a 28-day experimental period, i.e., a control diet with basal diet, and four experimental diets in which maize was replaced by 7%, 14%, 21%, and 28% DFRB, respectively. The results showed that serum endotoxins concentration and diamine oxidase (DAO) activity were both increased (linear, p = 0.0004, 0.001, respectively) with DFRB level. However, compared with control group, serum endotoxins concentration and DAO activity were not different in pigs fed with 7% DFRB in the diet. There was a quadratic response in serum D-lactate concentration to the increased DFRB (quadratic, p = 0.021). In the cecum, thickness of the intestinal wall significantly increased with increasing levels of DFRB in the diets (linear, p = 0.033), while crypt depth/thickness of the intestinal wall ratio significantly decreased with increasing level of DFRB in the diets (linear, p = 0.043). In the jejunum, total bacteria, Escherichia coli, and Bifidobacterium all responded quadratically to increasing levels of DFRB in the diets (quadratic, p = 0.003, 0.001, 0.006, respectively). Additionally, there was no difference in Escherichia coli in pigs fed 0%, 7%, and 14% DFRB diets. In the colon, there were quadratic responses in C. perfringens to the increased DFRB (quadratic, p = 0.023). C. perfringens reduced as the DFRB concentration increased from 0% to 14% and then increased. When D-lactate, total bacteria, Escherichia coli, Bifidobacterium, and C. perfringens were considered, the optimal substitution level of DFRB were 12.00%, 11.84%, 7.50%, 8.92%, and 15.92%, respectively. In conclusion, 7% DFRB had a beneficial effect on intestinal wall thickness, Bifidobacterium and C. perfringens, and had no adverse effect on intestinal permeability and Escherichia coli.
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Affiliation(s)
- Huan Wang
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
| | - Pinghua Li
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
- Industrial Technology System Integration Innovation Center of Jiangsu Modern Agriculture (PIG), Nanjing 210095, China
- Nanjing Agricultural University’s New Rural Research and Development Corporation of Huaian City, Huaian 223003, China
- Correspondence:
| | - Taoran Du
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
| | - Guang Pu
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
| | - Lijuan Fan
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
| | - Chen Gao
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
| | - Peipei Niu
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
| | - Chengwu Wu
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
| | - Wuduo Zhou
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Industrial Technology System Integration Innovation Center of Jiangsu Modern Agriculture (PIG), Nanjing 210095, China
| | - Ruihua Huang
- Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China
- Huaian Academy, Nanjing Agricultural University, Huaian 223003, China
- Industrial Technology System Integration Innovation Center of Jiangsu Modern Agriculture (PIG), Nanjing 210095, China
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19
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The Impact of Pectin Supplementation on Intestinal Barrier Function in Healthy Young Adults and Healthy Elderly. Nutrients 2019; 11:nu11071554. [PMID: 31324040 PMCID: PMC6683049 DOI: 10.3390/nu11071554] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/01/2019] [Accepted: 07/08/2019] [Indexed: 02/08/2023] Open
Abstract
Intestinal barrier function is suggested to decrease with aging and may be improved by pectin intake. The aim of this study was to investigate the effects of four weeks pectin supplementation on gastrointestinal barrier function in vivo and ex vivo in different age groups. In a randomized, double-blind, placebo-controlled, parallel study, 52 healthy young adults (18-40 years) and 48 healthy elderly (65-75 years) received 15 g/day pectin or placebo for four weeks. Pre- and post-intervention, in vivo gastrointestinal permeability by a multisugar test, and defense capacity in mucosal samples were assessed. Sigmoid biopsies were collected post-intervention from subgroups for Ussing chamber experiments and gene transcription of barrier-related genes. Pectin intervention did not affect in vivo gastroduodenal, small intestinal, colonic, and whole gut permeability in young adults nor in elderly (p ≥ 0.130). Salivary and fecal sIgA and serum IgA were not significantly different between pectin versus placebo in both age groups (p ≥ 0.128). In both young adults and elderly, no differences in transepithelial electrical resistance and fluorescein flux (p ≥ 0.164) and relative expression of genes analyzed (p ≥ 0.222) were found between pectin versus placebo. In conclusion, intestinal barrier function was not affected by four weeks pectin supplementation neither in healthy young adults nor in healthy elderly.
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Neumann G, Wall R, Rangel I, Marques TM, Repsilber D. Qualitative modelling of the interplay of inflammatory status and butyrate in the human gut: a hypotheses about robust bi-stability. BMC SYSTEMS BIOLOGY 2018; 12:144. [PMID: 30558589 PMCID: PMC6296070 DOI: 10.1186/s12918-018-0667-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 11/21/2018] [Indexed: 02/10/2023]
Abstract
Background Gut microbiota interacts with the human gut in multiple ways. Microbiota composition is altered in inflamed gut conditions. Likewise, certain microbial fermentation products as well as the lipopolysaccharides of the outer membrane are examples of microbial products with opposing influences on gut epithelium inflammation status. This system of intricate interactions is known to play a core role in human gut inflammatory diseases. Here, we present and analyse a simplified model of bidirectional interaction between the microbiota and the host: in focus is butyrate as an example for a bacterial fermentation product with anti-inflammatory properties. Results We build a dynamical model based on an existing model of inflammatory regulation in gut epithelial cells. Our model introduces both butyrate as a bacterial product which counteracts inflammation, as well as bacterial LPS as a pro-inflammatory bacterial product. Moreover, we propose an extension of this model that also includes a feedback interaction towards bacterial composition. The analysis of these dynamical models shows robust bi-stability driven by butyrate concentrations in the gut. The extended model hints towards a further possible enforcement of the observed bi-stability via alteration of gut bacterial composition. A theoretical perspective on the stability of the described switch-like character is discussed. Conclusions Interpreting the results of this qualitative model allows formulating hypotheses about the switch-like character of inflammatory regulation in the gut epithelium, involving bacterial products as constitutive parts of the system. We also speculate about possible explanations for observed bimodal distributions in bacterial compositions in the human gut. The switch-like behaviour of the system proved to be mostly independent of parameter choices. Further implications of the qualitative character of our modeling approach for the robustness of the proposed hypotheses are discussed, as well as the pronounced role of butyrate compared to other inflammatory regulators, especially LPS, NF- κB and cytokines. Electronic supplementary material The online version of this article (10.1186/s12918-018-0667-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gunter Neumann
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Rebecca Wall
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Ignacio Rangel
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Tatiana M Marques
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden
| | - Dirk Repsilber
- School of Medical Health (MV), Örebro University, Örebro, 70182, Sweden.
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