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Whitman JA, Doherty LA, Pantoja-Feliciano de Goodfellow IG, Racicot K, Anderson DJ, Kensil K, Karl JP, Gibson GR, Soares JW. In Vitro Fermentation Shows Polyphenol and Fiber Blends Have an Additive Beneficial Effect on Gut Microbiota States. Nutrients 2024; 16:1159. [PMID: 38674850 PMCID: PMC11053737 DOI: 10.3390/nu16081159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/03/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Polyphenols and fermentable fibers have shown favorable effects on gut microbiota composition and metabolic function. However, few studies have investigated whether combining multiple fermentable fibers or polyphenols may have additive beneficial effects on gut microbial states. Here, an in vitro fermentation model, seeded with human stool combined from 30 healthy volunteers, was supplemented with blends of polyphenols (PP), dietary fibers (FB), or their combination (PPFB) to determine influence on gut bacteria growth dynamics and select metabolite changes. PP and FB blends independently led to significant increases in the absolute abundance of select beneficial taxa, namely Ruminococcus bromii, Bifidobacterium spp., Lactobacillus spp., and Dorea spp. Total short-chain fatty acid concentrations, relative to non-supplemented control (F), increased significantly with PPFB and FB supplementation but not PP. Indole and ammonia concentrations decreased with FB and PPFB supplementation but not PP alone while increased antioxidant capacity was only evident with both PP and PPFB supplementation. These findings demonstrated that, while the independent blends displayed selective positive impacts on gut states, the combination of both blends provided an additive effect. The work outlines the potential of mixed substrate blends to elicit a broader positive influence on gut microbial composition and function to build resiliency toward dysbiosis.
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Affiliation(s)
- Jordan A. Whitman
- Soldier Performance Division, U.S. Army Combat Capabilities Development Command (DEVCOM) Soldier Center, Natick, MA 01760, USA; (J.A.W.); (L.A.D.); (I.G.P.-F.d.G.); (K.R.)
| | - Laurel A. Doherty
- Soldier Performance Division, U.S. Army Combat Capabilities Development Command (DEVCOM) Soldier Center, Natick, MA 01760, USA; (J.A.W.); (L.A.D.); (I.G.P.-F.d.G.); (K.R.)
| | - Ida G. Pantoja-Feliciano de Goodfellow
- Soldier Performance Division, U.S. Army Combat Capabilities Development Command (DEVCOM) Soldier Center, Natick, MA 01760, USA; (J.A.W.); (L.A.D.); (I.G.P.-F.d.G.); (K.R.)
| | - Kenneth Racicot
- Soldier Performance Division, U.S. Army Combat Capabilities Development Command (DEVCOM) Soldier Center, Natick, MA 01760, USA; (J.A.W.); (L.A.D.); (I.G.P.-F.d.G.); (K.R.)
| | - Danielle J. Anderson
- Combat Feeding Division, U.S. Army Combat Capabilities Development Command (DEVCOM) Soldier Center, Natick, MA 01760, USA; (D.J.A.); (K.K.)
| | - Katherine Kensil
- Combat Feeding Division, U.S. Army Combat Capabilities Development Command (DEVCOM) Soldier Center, Natick, MA 01760, USA; (D.J.A.); (K.K.)
| | - J. Philip Karl
- Military Nutrition Division, U.S. Army Research Institute of Environmental Medicine (USARIEM), Natick, MA 01760, USA;
| | - Glenn R. Gibson
- Food and Nutritional Sciences, University of Reading, Reading RG6 6AH, UK;
| | - Jason W. Soares
- Soldier Performance Division, U.S. Army Combat Capabilities Development Command (DEVCOM) Soldier Center, Natick, MA 01760, USA; (J.A.W.); (L.A.D.); (I.G.P.-F.d.G.); (K.R.)
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Kennedy JM, De Silva A, Walton GE, Poveda C, Gibson GR. Comparison of prebiotic candidates in ulcerative colitis using an in vitro fermentation model. J Appl Microbiol 2024; 135:lxae034. [PMID: 38337173 DOI: 10.1093/jambio/lxae034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 01/25/2024] [Accepted: 02/08/2024] [Indexed: 02/12/2024]
Abstract
AIMS This study explored the effect of three different prebiotics, the human milk oligosaccharide 2'-fucosyllactose (2'-FL), an oligofructose-enriched inulin (fructo-oligosaccharide, or FOS), and a galacto-oligosaccaride (GOS) mixture, on the faecal microbiota from patients with ulcerative colitis (UC) using in vitro batch culture fermentation models. Changes in bacterial groups and short-chain fatty acid (SCFA) production were compared. METHODS AND RESULTS In vitro pH controlled batch culture fermentation was carried out over 48 h on samples from three healthy controls and three patients with active UC. Four vessels were run, one negative control and one for each of the prebiotic substrates. Bacterial enumeration was carried out using fluorescence in situ hybridization with flow cytometry. SCFA quantification was performed using gas chromatography mass spectrometry. All substrates had a positive effect on the gut microbiota and led to significant increases in total SCFA and propionate concentrations at 48 h. 2'-FL was the only substrate to significantly increase acetate and led to the greatest increase in total SCFA concentration at 48 h. 2'-FL best suppressed Desulfovibrio spp., a pathogen associated with UC. CONCLUSIONS 2'FL, FOS, and GOS all significantly improved the gut microbiota in this in vitro study and also led to increased SCFA.
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Affiliation(s)
- James M Kennedy
- Department of Food and Nutritional Sciences, The University of Reading, Reading RG6 6AP, United Kingdom
- Department of Gastroenterology, Royal Berkshire NHS Foundation Trust, Reading RG1 5AN, United Kingdom
| | - Aminda De Silva
- Department of Gastroenterology, Royal Berkshire NHS Foundation Trust, Reading RG1 5AN, United Kingdom
| | - Gemma E Walton
- Department of Food and Nutritional Sciences, The University of Reading, Reading RG6 6AP, United Kingdom
| | - Carlos Poveda
- Department of Food and Nutritional Sciences, The University of Reading, Reading RG6 6AP, United Kingdom
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Reading RG6 6AP, United Kingdom
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Parker C, Hunter KA, Johnson MA, Sharpe GR, Gibson GR, Walton GE, Poveda C, Cousins B, Williams NC. Effects of 24-week prebiotic intervention on self-reported upper respiratory symptoms, gastrointestinal symptoms, and markers of immunity in elite rugby union players. Eur J Sport Sci 2023; 23:2232-2239. [PMID: 37331347 DOI: 10.1080/17461391.2023.2216657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
OBJECTIVES Elite rugby union players face numerous physiological and psychological stressors which can increase upper respiratory and gastrointestinal illness risk, and in turn can compromise training and competitive performance. This study aimed to investigate the effect of daily prebiotic supplementation on upper respiratory symptoms, gastrointestinal symptoms, and markers of immune function in elite rugby union players. METHODS Thirty-three elite rugby union players were randomly assigned to consume a prebiotic (2.8 g/day galactooligosaccharide) or placebo (2.8 g/day maltodextrin), daily for 168 days under double-blind conditions. Participants completed daily and weekly questionnaires for self-reported upper respiratory and gastrointestinal symptoms respectively. Blood and saliva samples were collected at 0, 84, and 168 days for assessment of plasma TNF-α and CRP, and saliva IgA respectively. RESULTS The prebiotic group experienced a 2-day reduction in upper respiratory symptom duration (P = 0.045). Gastrointestinal symptom severity and incidence were lower in the prebiotic group compared to the placebo group (P < 0.001, P = 0.041) respectively. Salivary immunoglobulin A secretion rate was 42% greater in the prebiotic group compared to the placebo group at day 168 (P = 0.004), no differences in CRP and TNF-α were found (P > 0.05). CONCLUSION A 168-day dietary prebiotic intervention reduced the duration of upper respiratory symptoms and reduced the incidence and severity of gastrointestinal symptoms in elite rugby union players. These findings suggest that seasonal prebiotic interventions may be beneficial for reducing illness in elite rugby union players, improving their availability to train and compete.Key pointsElite athletes are susceptible to upper respiratory symptoms and gastrointestinal symptoms which may impact upon training availability and competition performance.For the first time, this study shows that a dietary prebiotic intervention can reduce the duration of upper respiratory symptoms by 2 days in elite rugby union players.Dietary prebiotic supplementation can improve the incidence and severity of gastrointestinal symptoms experienced by elite rugby union players.Prebiotic supplementation was able to increase salivary IgA secretion after 168 days.These findings can inform practice suggesting that seasonal prebiotic use has the potential to modulate immune function and reduce illness in elite rugby union, which may improve a player's availability to train and compete.The mechanisms by which prebiotics reduce URS and GIS require further research exploration.
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Affiliation(s)
- C Parker
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - K A Hunter
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - M A Johnson
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - G R Sharpe
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - G R Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Whiteknights, Reading, United Kingdom
| | - G E Walton
- Department of Food and Nutritional Sciences, The University of Reading, Whiteknights, Reading, United Kingdom
| | - C Poveda
- Department of Food and Nutritional Sciences, The University of Reading, Whiteknights, Reading, United Kingdom
| | - B Cousins
- London Irish Rugby Football Club, Hazelwood Centre, Sunbury-on-Thames, United Kingdom
| | - N C Williams
- Department of Sport Science, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
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4
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Collins SM, Gibson GR, Stainton GN, Bertocco A, Kennedy OB, Walton GE, Commane DM. Chronic consumption of a blend of inulin and arabinoxylan reduces energy intake in an ad libitum meal but does not influence perceptions of appetite and satiety: a randomised control-controlled crossover trial. Eur J Nutr 2023:10.1007/s00394-023-03136-6. [PMID: 37046122 DOI: 10.1007/s00394-023-03136-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 03/15/2023] [Indexed: 04/14/2023]
Abstract
PURPOSE Prebiotic foods can be used to increase production of short-chain fatty acids (SCFA) in the gut. Of the SCFA, propionate is credited with the strongest anorectic activity. In previous work, a 50/50 blend of inulin and arabinoxylan was produced (I + AX) that significantly increased propionate production in an in vitro gut model. This study sought to establish whether chronic consumption of a prebiotic blend of I + AX decreases appetite and energy intake and increases intestinal propionate production in human participants. METHODS MIXSAT (clinicaltrials.gov id: NCT02846454, August 2016) was a double-blind randomised acute-within-chronic crossover feeding trial in healthy adult men (n = 20). Treatments were 8 g per day I + AX for 21 days or weight-matched maltodextrin control. The primary outcome measure was perceived satiety and appetite during an acute study visit. Secondary outcomes were energy intake in an ad libitum meal, faecal SCFA concentration, and faecal microbiota composition. RESULTS Perceived satiety and appetite were not affected by the intervention. I + AX was associated with a reduction in energy intake in an ad libitum meal, increased faecal SCFA concentration, and an increase in cell counts of Bifidobacteria, Lactobacilli, and other microbial genera associated with health. IMPLICATIONS Chronic consumption of this blend of prebiotics decreased energy intake in a single sitting. Further studies are needed to confirm mechanism of action and to determine whether this might be useful in weight control.
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Affiliation(s)
- Sineaid M Collins
- Food and Nutritional Sciences, University of Reading, Berkshire, UK.
| | - Glenn R Gibson
- Food and Nutritional Sciences, University of Reading, Berkshire, UK
| | - Gavin N Stainton
- Herbalife Nutrition, The Atrium, 1 Harefield Road, Uxbridge, Middlesex, UK
| | - Andrea Bertocco
- Herbalife Nutrition, The Atrium, 1 Harefield Road, Uxbridge, Middlesex, UK
| | - Orla B Kennedy
- Herbalife Nutrition, The Atrium, 1 Harefield Road, Uxbridge, Middlesex, UK
| | - Gemma E Walton
- Herbalife Nutrition, The Atrium, 1 Harefield Road, Uxbridge, Middlesex, UK
| | - Daniel M Commane
- Applied and Health Sciences, Northumbria University, Tyne and Wear, UK
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5
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Monteagudo-Mera A, Shalunkhe A, Duhduh A, Walton GE, Gibson GR, Pereira DI, Wijeyesekera A, Andrews SC. Impact of inorganic iron and haem on the human gut microbiota; An in vitro batch-culture approach. Front Microbiol 2023; 14:1074637. [PMID: 36910170 PMCID: PMC9995831 DOI: 10.3389/fmicb.2023.1074637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Although iron is an essential nutrient for humans, as well as for almost all other organisms, it is poorly absorbed (~15%) from the diet such that most passes through the upper gut into the large intestine. The colonic microbiota is thus exposed to, and potentially influenced by, such residual iron which could have an impact on human health. The aim of the research described here is to determine how the major forms of dietary iron (inorganic iron and haem) influence metabolic activity and composition of the human gut microbiota by utilizing an in vitro parallel, pH-controlled anaerobic batch culture approach. Controlled iron provision was enabled by the design of a 'modified' low-iron gut-model medium whereby background iron content was reduced from 28 to 5 μM. Thus, the impact of both low and high levels of inorganic and haem iron (18-180 μM and 7.7-77 μM, respectively) could be explored. Gut-microbiota composition was determined using next generation sequencing (NGS) based community profiling (16S rRNA gene sequencing) and flow-fluorescent in situ hybridization (FISH). Metabolic-end products (organic acids) were quantified using gas chromatography (GC) and iron incorporation was estimated by inductively coupled plasma optical emission spectroscopy (ICP-OES). Results showed that differences in iron regime induced significant changes in microbiota composition when low (0.1% w/v) fecal inoculation levels were employed. An increase in haem levels from 7.7 to 77 μM (standard levels employed in gut culture studies) resulted in reduced microbial diversity, a significant increase in Enterobacteriaceae and lower short chain fatty acid (SCFA) production. These effects were countered when 18 μM inorganic iron was also included into the growth medium. The results therefore suggest that high-dietary haem may have a detrimental effect on health since the resulting changes in microbiota composition and SCFA production are indicators of an unhealthy gut. The results also demonstrate that employing a low inoculum together with a low-iron gut-model medium facilitated in vitro investigation of the relationship between iron and the gut microbiota.
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Affiliation(s)
- Andrea Monteagudo-Mera
- School of Biological Sciences, University of Reading, Reading, United Kingdom.,Department of Food & Nutritional Sciences, University of Reading, Reading, United Kingdom
| | | | - Amro Duhduh
- School of Biological Sciences, University of Reading, Reading, United Kingdom.,Faculty of Applied Medical Science, Jazan University, Jazan, Saudi Arabia
| | - Gemma E Walton
- Department of Food & Nutritional Sciences, University of Reading, Reading, United Kingdom
| | - Glenn R Gibson
- Department of Food & Nutritional Sciences, University of Reading, Reading, United Kingdom
| | | | - Anisha Wijeyesekera
- Department of Food & Nutritional Sciences, University of Reading, Reading, United Kingdom
| | - Simon C Andrews
- School of Biological Sciences, University of Reading, Reading, United Kingdom
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6
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Sanz Morales P, Wijeyesekera A, Robertson MD, Jackson PPJ, Gibson GR. The Potential Role of Human Milk Oligosaccharides in Irritable Bowel Syndrome. Microorganisms 2022; 10:microorganisms10122338. [PMID: 36557589 PMCID: PMC9781515 DOI: 10.3390/microorganisms10122338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Irritable Bowel Syndrome (IBS) is the most common gastrointestinal (GI) disorder in Western populations and therefore a major public health/economic concern. However, despite extensive research, psychological and physiological factors that contribute to the aetiology of IBS remain poorly understood. Consequently, clinical management of IBS is reduced to symptom management through various suboptimal options. Recent evidence has suggested human milk oligosaccharides (HMOs) as a potential therapeutic option for IBS. Here, we review literature concerning the role of HMOs in IBS, including data from intervention and in vitro trials. HMO supplementation shows promising results in altering the gut microbiota and improving IBS symptoms, for instance by stimulating bifidobacteria. Further research in adults is required into HMO mechanisms, to confirm the preliminary results available to date and recommendations of HMO use in IBS.
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Affiliation(s)
- Patricia Sanz Morales
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading RG6 6AH, UK
- Correspondence: ; Tel.: +44-7843865554
| | - Anisha Wijeyesekera
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading RG6 6AH, UK
| | - Margaret Denise Robertson
- Department of Nutritional Sciences, Faculty of Health & Medical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Peter P. J. Jackson
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading RG6 6AH, UK
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading RG6 6AH, UK
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7
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Sanabria J, Egan S, Masuda R, Lee AJ, Gibson GR, Nicholson JK, Wist J, Holmes E. Overview of the Nomenclature and Network of Contributors to the Development of Bioreactors for Human Gut Simulation Using Bibliometric Tools: A Fragmented Landscape. J Agric Food Chem 2022; 70:11458-11467. [PMID: 36095091 PMCID: PMC9501909 DOI: 10.1021/acs.jafc.2c03597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The evolution of complex in vitro models of the human gastrointestinal system to interrogate the biochemical functionality of the gut microbiome has augmented our understanding of its role in human physiology and pathology. With 5718 authors from 52 countries, gut bioreactor research reflects the growing awareness of our need to understand the contribution of the gut microbiome to human health. Although a large body of knowledge has been generated from in vitro models, it is scattered and defined by application-specific terminologies. To better grasp the capacity of bioreactors and further our knowledge of the human gastrointestinal system, we have conducted a cross-field bibliometric search and mapped the evolution of human gastrointestinal in vitro research. We present reference material with the aim of identifying key authors and bioreactor types to enable researchers to make decisions regarding the choice of method for simulating the human gut in the context of microbiome functionality.
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Affiliation(s)
- Janeth Sanabria
- Environmental Microbiology and Biotechnology Laboratory, Engineering School of Environmental & Natural Resources, Engineering Faculty, Universidad del Valle-Sede Meléndez, Cali 76001, Colombia
- Australian National Phenome Centre and Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia WA6150, Australia
| | - Siobhon Egan
- Australian National Phenome Centre and Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia WA6150, Australia
| | - Reika Masuda
- Australian National Phenome Centre and Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia WA6150, Australia
| | - Alex J Lee
- Australian National Phenome Centre and Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia WA6150, Australia
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AH, United Kingdom
| | - Jeremy K Nicholson
- Australian National Phenome Centre and Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia WA6150, Australia
- Institute of Global Health Innovation, Faculty of Medicine, Imperial College London, Level 1, Faculty Building, South Kensington Campus, London SW7 2NA, United Kingdom
| | - Julien Wist
- Australian National Phenome Centre and Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia WA6150, Australia
- Chemistry Department, Universidad del Valle, Cali 76001, Colombia
| | - Elaine Holmes
- Australian National Phenome Centre and Computational and Systems Medicine, Health Futures Institute, Murdoch University, Harry Perkins Building, Perth, Western Australia WA6150, Australia
- Department of Metabolism, Digestion, and Reproduction, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, South Kensington, London SW7 2AZ, United Kingdom
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Hobden MR, Commane DM, Guérin-Deremaux L, Wils D, Thabuis C, Martin-Morales A, Wolfram S, Dìaz A, Collins S, Morais I, Rowland IR, Gibson GR, Kennedy OB. Correction to: Impact of dietary supplementation with resistant dextrin (NUTRIOSE®) on satiety, glycaemia, and related endpoints, in healthy adults. Eur J Nutr 2021; 60:4645. [PMID: 34432116 PMCID: PMC8572208 DOI: 10.1007/s00394-021-02663-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark R Hobden
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Daniel M Commane
- Faculty of Health and Life Sciences, Northumbria University, Newcastle, UK.
| | | | - Daniel Wils
- Department of Nutrition and Health, Roquette, Lestrem, France
| | | | - Agustin Martin-Morales
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Saskia Wolfram
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Antonio Dìaz
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Sineaid Collins
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Ines Morais
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Ian R Rowland
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
| | - Orla B Kennedy
- Department of Food and Nutritional Sciences, School of Chemistry, Pharmacy and Food, The University of Reading, Reading, UK
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9
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Walton GE, Gibson GR, Hunter KA. Mechanisms linking the human gut microbiome to prophylactic and treatment strategies for COVID-19. Br J Nutr 2021; 126:219-227. [PMID: 33032673 PMCID: PMC7684010 DOI: 10.1017/s0007114520003980] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/18/2020] [Accepted: 09/28/2020] [Indexed: 12/22/2022]
Abstract
The recent COVID-19 pandemic has altered the face of biology, social interaction and public health worldwide. It has had a destructive effect upon millions of people and is approaching a devastating one million fatalities. Emerging evidence has suggested a link between the infection and gut microbiome status. This is one of the several factors that may contribute towards severity of infection. Given the fact that the gut is heavily linked to immunity, inflammatory status and the ability to challenge pathogens, it is worthwhile to consider dietary intervention of the gut microbiota as means of potentially challenging the viral outcome. In this context, probiotics and prebiotics have been used to mitigate similar respiratory infections. Here, we summarise links between the gut microbiome and COVID-19 infection, as well as propose mechanisms whereby probiotic and prebiotic interventions may act.
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Affiliation(s)
- Gemma E. Walton
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, ReadingRG6 6AP, UK
| | - Glenn R. Gibson
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, ReadingRG6 6AP, UK
| | - Kirsty A. Hunter
- Exercise and Health Research Group, Department of Sport Science, Sport, Health and Performance Enhancement (SHAPE) Research Centre, Nottingham Trent University, NottinghamNG11 8NS, UK
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10
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Collins SM, Gibson GR, Kennedy OB, Walton G, Rowland I, Commane DM. Development of a prebiotic blend to influence in vitro fermentation effects, with a focus on propionate, in the gut. FEMS Microbiol Ecol 2021; 97:6319498. [PMID: 34251412 DOI: 10.1093/femsec/fiab101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 07/09/2021] [Indexed: 11/13/2022] Open
Abstract
Short chain fatty acids (SCFAs) derived from the human gut microbiota, and in particular propionate, may beneficially influence metabolic processes such as appetite regulation. Development of prebiotics that induce high propionate levels during fermentation is desirable. A total of 11 candidate prebiotics were screened to investigate their fermentation characteristics, with a focus on propionate production in mixed anaerobic batch culture of faecal bacteria. Further to this, a continuous 3-stage colonic fermentation model (simulating the human colon) was used to evaluate changes in microbial ecology, lactate and SCFA production of three 50:50 blends, comprising both slow and rapidly fermented prebiotics. In mixed batch culture: xylo-oligosaccharide, polydextrose and α-gluco-oligosaccharide were associated with the greatest increase in propionate. Polydextrose, α-gluco-oligosaccharide, β-1,4 glucan and oat fibre induced the greatest reductions in the acetate to propionate ratio. The most bifidogenic prebiotics were the oligosaccharides. Fermentation of a 50:50 blend of inulin and arabinoxylan, through the continuous 3-stage colonic fermentation model, induced a substantial and sustained release of propionate. The sustained release of propionate through the colon, if replicable in vivo, could potentially influence blood glucose, blood lipids and appetite regulation, however, dietary intervention studies are needed. Bifidogenic effects were also observed for the inulin and arabinoxylan blend and an increase synthesis of butyrate and lactate, thus indicating wider prebiotic potential.
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Affiliation(s)
- Sineaid M Collins
- Department of Health and Medical Sciences, University of Surrey, Stag Hill, Guildford, GU2 7XH, UK
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading RG6 6AP, UK
| | - Orla B Kennedy
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading RG6 6AP, UK
| | - Gemma Walton
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading RG6 6AP, UK
| | - Ian Rowland
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights Campus, Reading RG6 6AP, UK
| | - Daniel M Commane
- Department of Applied and Health Sciences, Northumbria University, Newcastle upon Tyne, NE2 4HH, UK
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11
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Newland GAI, Gibson GR, Jackson FL, Wijeyesekera A. Assessment of stool collection and storage conditions for in vitro human gut model studies. J Microbiol Methods 2021; 185:106230. [PMID: 33933521 DOI: 10.1016/j.mimet.2021.106230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND The role of the gut microbiota in health and disease is becoming increasingly apparent. Faeces is the most accessible sample to collect from human volunteers for studying the gut microbiota. However, the impact of stool collection and storage conditions on microbial and metabolic profiles have not been fully evaluated. By understanding the effect of different stool collection and storage conditions on microbial and metabolic composition, we can consider these parameters in the design of in vitro fermentation studies. METHODS Stool samples from 3 volunteers were stored under 5 different conditions to mimic methods that researchers may use to collect and store stool samples for study of the gut microbiota, including: fresh sample used within 10 min; stored on wet ice (4 °C) for 60 min; stored in an anaerobic chamber in a temperature-controlled bag (4 °C) for 60 min; freezing at -20 °C for 60 min and freezing at -20 °C for 60 min and then at -80 °C for 2 weeks. The stored samples were added to basal medium in batch culture fermenters alone (negative control) or with 5 g 2'-Fucosyllactose (2'FL) Human Milk Oligosaccharide (HMO) (as a positive fermentation control). Samples were collected at 3 timepoints (0, 12 and 24 h) for analysis by Flow Cytometry-Fluorescent In Situ Hybridisation (FC-FISH) and 1H-Nuclear Magnetic Resonance (NMR) spectroscopy to assess the impact on microbial and metabolic profiles, respectively. RESULTS Freezing stool significantly impacted microbial numbers and activity during in vitro fermentations, whereas storing the stool on wet ice (4 °C) or in an anaerobic chamber at 4 °C for 60 min had minimal effects on microbial and metabolic profiles throughout the 24 h batch culture fermentation experiments. DISCUSSION For in vitro batch culture fermentation studies where it may not be practical or possible to use fresh stool, either storing the stool on wet ice (4 °C) or in an anaerobic chamber at 4 °C for 60 min could be plausible alternatives to maintain microbial and metabolic profiles for analysis.
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Affiliation(s)
- Grace A I Newland
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK
| | - Glenn R Gibson
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK
| | - Frances L Jackson
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK
| | - Anisha Wijeyesekera
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK.
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12
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Sorensen K, Cawood AL, Gibson GR, Cooke LH, Stratton RJ. Amino Acid Formula Containing Synbiotics in Infants with Cow's Milk Protein Allergy: A Systematic Review and Meta-Analysis. Nutrients 2021; 13:935. [PMID: 33799379 PMCID: PMC7998621 DOI: 10.3390/nu13030935] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022] Open
Abstract
Cow's milk protein allergy (CMPA) is associated with dysbiosis of the infant gut microbiome, with allergic and immune development implications. Studies show benefits of combining synbiotics with hypoallergenic formulae, although evidence has never been systematically examined. This review identified seven publications of four randomised controlled trials comparing an amino acid formula (AAF) with an AAF containing synbiotics (AAF-Syn) in infants with CMPA (mean age 8.6 months; 68% male, mean intervention 27.3 weeks, n = 410). AAF and AAF-Syn were equally effective in managing allergic symptoms and promoting normal growth. Compared to AAF, significantly fewer infants fed AAF-Syn had infections (OR 0.35 (95% CI 0.19-0.67), p = 0.001). Overall medication use, including antibacterials and antifectives, was lower among infants fed AAF-Syn. Significantly fewer infants had hospital admissions with AAF-Syn compared to AAF (8.8% vs. 20.2%, p = 0.036; 56% reduction), leading to potential cost savings per infant of £164.05-£338.77. AAF-Syn was associated with increased bifidobacteria (difference in means 31.75, 95% CI 26.04-37.45, p < 0.0001); reduced Eubacterium rectale and Clostridium coccoides (difference in means -19.06, 95% CI -23.15 to -14.97, p < 0.0001); and reduced microbial diversity (p < 0.05), similar to that described in healthy breastfed infants, and may be associated with the improved clinical outcomes described. This review provides evidence that suggests combining synbiotics with AAF produces clinical benefits with potential economic implications.
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Affiliation(s)
- Katy Sorensen
- Medical Affairs, Nutricia Ltd., White Horse Business Park, Trowbridge BA14 0XQ, UK
| | - Abbie L. Cawood
- Medical Affairs, Nutricia Ltd., White Horse Business Park, Trowbridge BA14 0XQ, UK
- Institute of Human Nutrition, Faculty of Medicine, Mailpoint 113, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK; (A.L.C.); (R.J.S.)
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading RG6 6AP, UK;
| | - Lisa H. Cooke
- Department of Nutrition and Dietetics, Bristol Royal Hospital for Children, Upper Maudlin Street, Bristol BS2 8BJ, UK;
| | - Rebecca J. Stratton
- Medical Affairs, Nutricia Ltd., White Horse Business Park, Trowbridge BA14 0XQ, UK
- Institute of Human Nutrition, Faculty of Medicine, Mailpoint 113, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK; (A.L.C.); (R.J.S.)
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13
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Cunningham M, Azcarate-Peril MA, Barnard A, Benoit V, Grimaldi R, Guyonnet D, Holscher HD, Hunter K, Manurung S, Obis D, Petrova MI, Steinert RE, Swanson KS, van Sinderen D, Vulevic J, Gibson GR. Shaping the Future of Probiotics and Prebiotics. Trends Microbiol 2021; 29:667-685. [PMID: 33551269 DOI: 10.1016/j.tim.2021.01.003] [Citation(s) in RCA: 203] [Impact Index Per Article: 67.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 12/15/2022]
Abstract
Recent and ongoing developments in microbiome science are enabling new frontiers of research for probiotics and prebiotics. Novel types, mechanisms, and applications currently under study have the potential to change scientific understanding as well as nutritional and healthcare applications of these interventions. The expansion of related fields of microbiome-targeted interventions, and an evolving landscape for implementation across regulatory, policy, prescriber, and consumer spheres, portends an era of significant change. In this review we examine recent, emerging, and anticipated trends in probiotic and prebiotic science, and create a vision for broad areas of developing influence in the field.
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Affiliation(s)
- Marla Cunningham
- Department of Science and Innovation, Metagenics, PO Box 675, Virginia BC, QLD, 4014, Australia.
| | - M Andrea Azcarate-Peril
- UNC Departments of Medicine and Nutrition, Microbiome Core Facility, University of North Carolina, Chapel Hill, NC, USA
| | | | - Valerie Benoit
- Bell Institute of Health and Nutrition, General Mills, Minneapolis, MN, USA
| | | | - Denis Guyonnet
- Diana Nova, Symrise Nutrition, Clichy-la-Garenne, France
| | - Hannah D Holscher
- Department of Food Science and Human Nutrition and Division of Nutritional Sciences, University of Illinois, Urbana, IL, USA
| | - Kirsty Hunter
- Department of Sport Science, Nottingham Trent University, UK
| | - Sarmauli Manurung
- Emerging Sciences Research, Reckitt Benckiser, Nijmegen, The Netherlands
| | - David Obis
- Danone Nutricia Research, Palaiseau Cedex, France
| | | | - Robert E Steinert
- R&D Human Nutrition and Health, DSM Nutritional Products Ltd, Basel, Switzerland; Department of Surgery, Division of Visceral and Transplantation Surgery, University Hospital Zürich, Switzerland
| | - Kelly S Swanson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Douwe van Sinderen
- Microbiology BioSciences Institute, University College Cork, Cork, Ireland
| | - Jelena Vulevic
- veMico Ltd, Reading, UK; Department of Food and Nutritional Sciences, University of Reading, Reading, UK
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading, UK
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14
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Craggs M, Gibson GR, Whalley P, Collins CD. Bioaccessibility of Difenoconazole in Rice Following Industry Standard Processing and Preparation Procedures. J Agric Food Chem 2020; 68:10167-10173. [PMID: 32786844 PMCID: PMC7499419 DOI: 10.1021/acs.jafc.0c02648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
For pesticide registration a post application assessment is made on the safety of any residue remaining in the edible portion of the treated crop. This assessment does not typically consider the bioaccessibility of pesticide residues. The effects of this on potential exposure to incurred difenoconazole residues passing through the human gastrointestinal tract were studied, including the impact of commodity processing. It has previously been demonstrated that solvent extraction methods have the potential to overestimate the bioaccessible fraction, so in vitro simulated gut systems may offer a better approach to determine residue bioaccessibility to refine the risk assessment process. The bioaccessibility of difenoconazole residues associated with processed rice samples was assessed using in vitro intestinal extraction and colonic fermentation methods. The mean bioaccessibility following intestinal digestion was 33.3% with a range from 13% to 70.6%. Quantification of the colonic bioaccessible fraction was not possible due to compound metabolism. Mechanical processing methods generally increased the residue bioaccessibility, while chemical methods resulted in a decrease. Both mechanical and chemical processing methods reduced the total difenoconazole residue level by ca. 50%.
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Affiliation(s)
- M Craggs
- Product Safety, Jealott's Hill International Research Centre, Syngenta International AG, Bracknell, Berkshire RG42 6EY, United Kingdom
| | - G R Gibson
- Food Microbial Sciences Unit, School of Food Biosciences, University of Reading, Reading RG6 6AP, United Kingdom
| | - P Whalley
- Product Safety, Jealott's Hill International Research Centre, Syngenta International AG, Bracknell, Berkshire RG42 6EY, United Kingdom
| | - C D Collins
- Department of Soil Science, School of Human & Environmental Sciences, University of Reading, Whiteknights, Reading RG6 6DW, United Kingdom
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15
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Affiliation(s)
- Eric Giannoni
- Clinic of Neonatology, Department Mother-Woman-Child, Lausanne University Hospital and University of Lausanne, Lausanne CH-1011, Switzerland.
| | - David Baud
- Materno-Fetal and Obstetrics Research Unit, Department Mother-Woman-Child, Lausanne University Hospital and University of Lausanne, Lausanne CH-1011, Switzerland
| | - Varvara Dimopoulou Agri
- Clinic of Neonatology, Department Mother-Woman-Child, Lausanne University Hospital and University of Lausanne, Lausanne CH-1011, Switzerland
| | - Glenn R Gibson
- Food and Nutritional Sciences, St Joseph's Hospital, University of Reading, UK
| | - Gregor Reid
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada; Canadian R&D Centre for Human Microbiome and Probiotics, Lawson Health Research Institute, London, ON, Canada
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16
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Baud D, Dimopoulou Agri V, Gibson GR, Reid G, Giannoni E. Using Probiotics to Flatten the Curve of Coronavirus Disease COVID-2019 Pandemic. Front Public Health 2020; 8:186. [PMID: 32574290 PMCID: PMC7227397 DOI: 10.3389/fpubh.2020.00186] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/24/2020] [Indexed: 01/07/2023] Open
Affiliation(s)
- David Baud
- Materno-Fetal and Obstetrics Research Unit, Department Woman-Mother-Child, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Varvara Dimopoulou Agri
- Clinic of Neonatology, Department Woman-Mother-Child, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Glenn R. Gibson
- Food and Nutritional Sciences, St Joseph's Hospital, The University of Reading, Reading, United Kingdom
| | - Gregor Reid
- Department of Microbiology and Immunology, The University of Western Ontario, London, ON, Canada,Canadian R&D Centre for Human Microbiome and Probiotics, Lawson Health Research Institute, London, ON, Canada
| | - Eric Giannoni
- Clinic of Neonatology, Department Woman-Mother-Child, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland,*Correspondence: Eric Giannoni
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17
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Henrique-Bana FC, Wang X, Costa GN, Spinosa WA, Miglioranza LH, Scorletti E, Calder PC, Byrne CD, Gibson GR. In vitro effects of Bifidobacterium lactis-based synbiotics on human faecal bacteria. Food Res Int 2020; 128:108776. [DOI: 10.1016/j.foodres.2019.108776] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/18/2019] [Accepted: 10/26/2019] [Indexed: 12/15/2022]
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18
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Sanders ME, Merenstein DJ, Reid G, Gibson GR, Rastall RA. Probiotics and prebiotics in intestinal health and disease: from biology to the clinic. Nat Rev Gastroenterol Hepatol 2019; 16:605-616. [PMID: 31296969 DOI: 10.1038/s41575-019-0173-3] [Citation(s) in RCA: 756] [Impact Index Per Article: 151.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/14/2019] [Indexed: 12/14/2022]
Abstract
Probiotics and prebiotics are microbiota-management tools for improving host health. They target gastrointestinal effects via the gut, although direct application to other sites such as the oral cavity, vaginal tract and skin is being explored. Here, we describe gut-derived effects in humans. In the past decade, research on the gut microbiome has rapidly accumulated and has been accompanied by increased interest in probiotics and prebiotics as a means to modulate the gut microbiota. Given the importance of these approaches for public health, it is timely to reiterate factual and supporting information on their clinical application and use. In this Review, we discuss scientific evidence on probiotics and prebiotics, including mechanistic insights into health effects. Strains of Lactobacillus, Bifidobacterium and Saccharomyces have a long history of safe and effective use as probiotics, but Roseburia spp., Akkermansia spp., Propionibacterium spp. and Faecalibacterium spp. show promise for the future. For prebiotics, glucans and fructans are well proven, and evidence is building on the prebiotic effects of other substances (for example, oligomers of mannose, glucose, xylose, pectin, starches, human milk and polyphenols).
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Affiliation(s)
- Mary Ellen Sanders
- International Scientific Association for Probiotics and Prebiotics, Centennial, CO, USA
| | - Daniel J Merenstein
- Department of Family Medicine, Georgetown University Medical Center, Washington, DC, USA
| | - Gregor Reid
- Lawson Research Institute, and Western University, London, Ontario, Canada
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading, UK.
| | - Robert A Rastall
- Department of Food and Nutritional Sciences, University of Reading, Reading, UK
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19
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Scott KP, Grimaldi R, Cunningham M, Sarbini SR, Wijeyesekera A, Tang MLK, Lee JCY, Yau YF, Ansell J, Theis S, Yang K, Menon R, Arfsten J, Manurung S, Gourineni V, Gibson GR. Developments in understanding and applying prebiotics in research and practice-an ISAPP conference paper. J Appl Microbiol 2019; 128:934-949. [PMID: 31446668 DOI: 10.1111/jam.14424] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/24/2019] [Accepted: 07/30/2019] [Indexed: 12/17/2022]
Abstract
AIMS The concept of using specific dietary components to selectively modulate the gut microbiota to confer a health benefit, defined as prebiotics, originated in 1995. In 2018, a group of scientists met at the International Scientific Association for Probiotics and Prebiotics annual meeting in Singapore to discuss advances in the prebiotic field, focussing on issues affecting functionality, research methodology and geographical differences. METHODS AND RESULTS The discussion ranged from examining scientific literature supporting the efficacy of established prebiotics, to the prospects for establishing health benefits associated with novel compounds, isolated from different sources. CONCLUSIONS While many promising candidate prebiotics from across the globe have been highlighted in preliminary research, there are a limited number with both demonstrated mechanism of action and defined health benefits as required to meet the prebiotic definition. Prebiotics are part of a food industry with increasing market sales, yet there are great disparities in regulations in different countries. Identification and commercialization of new prebiotics with unique health benefits means that regulation must improve and remain up-to-date so as not to risk stifling research with potential health benefits for humans and other animals. SIGNIFICANCE AND IMPACT OF STUDY This summary of the workshop discussions indicates potential avenues for expanding the range of prebiotic substrates, delivery methods to enhance health benefits for the end consumer and guidance to better elucidate their activities in human studies.
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Affiliation(s)
- K P Scott
- Rowett Institute, University of Aberdeen, Aberdeen, UK
| | - R Grimaldi
- Food and Nutritional Sciences, University of Reading, Reading, UK
| | - M Cunningham
- Metagenics (Aust) Pty Ltd., Virginia, Queensland, Australia
| | - S R Sarbini
- Department of Crop Science, Universiti Putra Malaysia, Bintulu Campus, Malaysia
| | - A Wijeyesekera
- Food and Nutritional Sciences, University of Reading, Reading, UK
| | - M L K Tang
- Department of Allergy and Immunology, The Royal Children's Hospital, Parkville, Melbourne, VIC, Australia
| | - J C-Y Lee
- School of Biological Sciences, The University of Hong Kong, Hong Kong, Hong Kong
| | - Y F Yau
- School of Biological Sciences, The University of Hong Kong, Hong Kong, Hong Kong
| | - J Ansell
- Zespri International Ltd, Mt Maunganui, New Zealand
| | - S Theis
- Beneo-Institute, Obrigheim, Germany
| | - K Yang
- Departments of Obstetrics and Gynaecology and Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - R Menon
- The Bell Institute of Health and Nutrition, General Mills Inc., Minneapolis, MN, USA
| | - J Arfsten
- Nestlé Product and Technology Center Dairy, Konolfingen, Switzerland
| | - S Manurung
- Reckitt Benckiser, Nijmegen, The Netherlands
| | - V Gourineni
- Ingredion Incorporated, Bridgewater, NJ, USA
| | - G R Gibson
- Food and Nutritional Sciences, University of Reading, Reading, UK
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20
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Monteagudo-Mera A, Rastall RA, Gibson GR, Charalampopoulos D, Chatzifragkou A. Adhesion mechanisms mediated by probiotics and prebiotics and their potential impact on human health. Appl Microbiol Biotechnol 2019; 103:6463-6472. [PMID: 31267231 PMCID: PMC6667406 DOI: 10.1007/s00253-019-09978-7] [Citation(s) in RCA: 262] [Impact Index Per Article: 52.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/07/2019] [Accepted: 06/10/2019] [Indexed: 12/14/2022]
Abstract
Adhesion ability to the host is a classical selection criterion for potential probiotic bacteria that could result in a transient colonisation that would help to promote immunomodulatory effects, as well as stimulate gut barrier and metabolic functions. In addition, probiotic bacteria have a potential protective role against enteropathogens through different mechanisms including production of antimicrobial compounds, reduction of pathogenic bacterial adhesion and competition for host cell binding sites. The competitive exclusion by probiotic bacteria has a beneficial effect not only on the gut but also in the urogenital tract and oral cavity. On the other hand, prebiotics may also act as barriers to pathogens and toxins by preventing their adhesion to epithelial receptors. In vitro studies with different intestinal cell lines have been widely used along the last decades to assess the adherence ability of probiotic bacteria and pathogen antagonism. However, extrapolation of these results to in vivo conditions still remains unclear, leading to the need of optimisation of more complex in vitro approaches that include interaction with the resident microbiota to address the current limitations. The aim of this mini review is to provide a comprehensive overview on the potential effect of the adhesive properties of probiotics and prebiotics on the host by focusing on the most recent findings related with adhesion and immunomodulatory and antipathogenic effect on human health.
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Affiliation(s)
- Andrea Monteagudo-Mera
- Biomedical Sciences, School of Biological Sciences, University of Reading, Reading, RG6 6AH, UK.
| | - Robert A Rastall
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, UK
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, UK
| | - Dimitris Charalampopoulos
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, UK
| | - Afroditi Chatzifragkou
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, UK.
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Heym N, Heasman BC, Hunter K, Blanco SR, Wang GY, Siegert R, Cleare A, Gibson GR, Kumari V, Sumich AL. The role of microbiota and inflammation in self-judgement and empathy: implications for understanding the brain-gut-microbiome axis in depression. Psychopharmacology (Berl) 2019; 236:1459-1470. [PMID: 30955108 PMCID: PMC6598942 DOI: 10.1007/s00213-019-05230-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 03/18/2019] [Indexed: 12/31/2022]
Abstract
RATIONALE The gut-brain axis includes bidirectional communication between intestinal microbiota and the central nervous system. Bifidobacterium and Lactobacillus spp. have been implicated in psychological health, such as depression, through various pathways (e.g. inflammation). Research needs a better understanding of direct and indirect effects through examination of psychological factors that make people susceptible to, or offer protection against, depression. OBJECTIVE This study investigated the relationships between gut microbiota, inflammation and psychological risk and resilience factors for depression. METHODS Forty participants (13 m/27 f) recruited from the general population completed self-report questionnaires for depression, self-judgement, over-identification and affective and cognitive empathy. Faecal and blood samples were taken to assay microbiota (Bifidobacterium; Lactobacillus spp.) and pro-inflammatory molecules (C-reactive protein, CRP and interleukin-6, IL-6), respectively. RESULTS Hierarchical regression analyses (controlling for sex, age and the shared variance of risk and resilience factors) showed that (i) cognitive depression was significantly predicted by negative self-judgement and reduced cognitive empathy; (ii) abundance of Lactobacillus spp. was directly related to positive self-judgement but only indirectly to cognitive depression and lower affective empathy (both through self-judgement); and (iii) CRP was the strongest predictor of reduced cognitive empathy, with suppression effects seen for age (negative) and IL-6 (positive) after controlling for CRP. CONCLUSIONS Findings suggest that lactobacilli and inflammation may be differentially associated with mood disorder via brain mechanisms underpinning self-judgement and cognitive empathy, respectively. Further trials investigating interventions to increase Lactobacillus spp. in depression would benefit from direct measures of self-judgement and affective empathic distress, whilst those that aim to reduce inflammation should investigate cognitive empathy.
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Affiliation(s)
- N Heym
- Division of Psychology, Nottingham Trent University, Nottingham, NG1 4FQ, UK.
| | - B C Heasman
- Division of Psychology, Nottingham Trent University, Nottingham, NG1 4FQ, UK
| | - K Hunter
- Division of Sports Science, Nottingham Trent University, Nottingham, UK
| | - S R Blanco
- Division of Psychology, Nottingham Trent University, Nottingham, NG1 4FQ, UK
| | - G Y Wang
- Department of Psychology, Auckland University of Technology, Auckland, New Zealand
| | - R Siegert
- Department of Psychology, Auckland University of Technology, Auckland, New Zealand
| | - A Cleare
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - G R Gibson
- Food and Nutritional Sciences, University of Reading, Reading, UK
| | - V Kumari
- Centre for Cognitive Neuroscience, Brunel University London, Uxbridge, UK
| | - A L Sumich
- Division of Psychology, Nottingham Trent University, Nottingham, NG1 4FQ, UK
- Department of Psychology, Auckland University of Technology, Auckland, New Zealand
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22
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Vulevic J, Tzortzis G, Juric A, Gibson GR. Effect of a prebiotic galactooligosaccharide mixture (B-GOS®) on gastrointestinal symptoms in adults selected from a general population who suffer with bloating, abdominal pain, or flatulence. Neurogastroenterol Motil 2018; 30:e13440. [PMID: 30109908 DOI: 10.1111/nmo.13440] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/07/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Prebiotics exert beneficial effects upon gastrointestinal (GI) environment, but this is not always accompanied with a positive effect on GI symptoms. B-GOS® is a prebiotic with high selectivity toward bifidobacteria and a variety of other beneficial effects in humans. Here, we investigated its effect on GI symptoms in adults who suffer with bloating, abdominal pain, and flatulence. METHODS In a double-blind, placebo-controlled, crossover study, 83 subjects from the general population who presented with GI symptoms during screening period and had a predicted probability of functional bowel disorder of more than 75% were randomized to receive either a placebo or the B-GOS® treatment (2.75 g/d). Subjects were screened for the presence of GI symptoms for 1 week, they consumed the treatments for 2 weeks, and then went through a 2-week washout period, before switching to the other treatment for the final 2 weeks. GI symptoms, bowel movements, and stool consistency were assessed in daily and weekly questionnaires. Quality of life was assessed weekly and depression and anxiety at the end of each treatment period. RESULTS B-GOS® resulted in significantly (P < 0.001) lower scores for bloating, flatulence, and abdominal pain both from baseline and placebo at the end of first week. The effect was sustained at the end of second week. It had no effect on the number of bowel movements, consistency of stools, quality of life, or mood throughout the study. CONCLUSION Results suggest that B-GOS® could possibly be used in the management of bloating, flatulence, or abdominal pain and warrant further investigation.
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Affiliation(s)
- Jelena Vulevic
- Department of Food and Nutritional Sciences, The University of Reading, Reading, UK.,Clasado Research Services, Thames Valley Science Park, Reading, UK
| | - George Tzortzis
- Clasado Research Services, Thames Valley Science Park, Reading, UK
| | - Aleksandra Juric
- Department of Food and Nutritional Sciences, The University of Reading, Reading, UK.,Clasado Research Services, Thames Valley Science Park, Reading, UK
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Reading, UK
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Grimaldi R, Gibson GR, Vulevic J, Giallourou N, Castro-Mejía JL, Hansen LH, Leigh Gibson E, Nielsen DS, Costabile A. A prebiotic intervention study in children with autism spectrum disorders (ASDs). Microbiome 2018; 6:133. [PMID: 30071894 PMCID: PMC6091020 DOI: 10.1186/s40168-018-0523-3] [Citation(s) in RCA: 184] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/27/2018] [Indexed: 06/02/2023]
Abstract
BACKGROUND Different dietary approaches, such as gluten and casein free diets, or the use of probiotics and prebiotics have been suggested in autistic spectrum disorders in order to reduce gastrointestinal (GI) disturbances. GI symptoms are of particular interest in this population due to prevalence and correlation with the severity of behavioural traits. Nowadays, there is lack of strong evidence about the effect of dietary interventions on these problems, particularly prebiotics. Therefore, we assessed the impact of exclusion diets and a 6-week Bimuno® galactooligosaccharide (B-GOS®) prebiotic intervention in 30 autistic children. RESULTS The results showed that children on exclusion diets reported significantly lower scores of abdominal pain and bowel movement, as well as lower abundance of Bifidobacterium spp. and Veillonellaceae family, but higher presence of Faecalibacterium prausnitzii and Bacteroides spp. In addition, significant correlations were found between bacterial populations and faecal amino acids in this group, compared to children following an unrestricted diet. Following B-GOS® intervention, we observed improvements in anti-social behaviour, significant increase of Lachnospiraceae family, and significant changes in faecal and urine metabolites. CONCLUSIONS To our knowledge, this is the first study where the effect of exclusion diets and prebiotics has been evaluated in autism, showing potential beneficial effects. A combined dietary approach resulted in significant changes in gut microbiota composition and metabolism suggesting that multiple interventions might be more relevant for the improvement of these aspects as well as psychological traits. TRIAL REGISTRATION NCT02720900 ; registered in November 2015.
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Affiliation(s)
- Roberta Grimaldi
- Department of Food and Nutritional Sciences, University of Reading, Reading, RG66AP UK
- Clasado Research Services Ltd., Thames Valley Science Park, Reading, RG29LH UK
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading, RG66AP UK
| | - Jelena Vulevic
- Clasado Research Services Ltd., Thames Valley Science Park, Reading, RG29LH UK
| | - Natasa Giallourou
- Division of Computational and Systems Medicine, Imperial College London, London, SW7 2AZ UK
| | - Josué L. Castro-Mejía
- Department of Food Science, Faculty of Science, Food Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Lars H. Hansen
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - E. Leigh Gibson
- Health Sciences Research Centre, Life Sciences Department, Whitelands College, University of Roehampton, London, SW15 4JD UK
| | - Dennis S. Nielsen
- Department of Food Science, Faculty of Science, Food Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Adele Costabile
- Health Sciences Research Centre, Life Sciences Department, Whitelands College, University of Roehampton, London, SW15 4JD UK
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Hoyles L, Jiménez-Pranteda ML, Chilloux J, Brial F, Myridakis A, Aranias T, Magnan C, Gibson GR, Sanderson JD, Nicholson JK, Gauguier D, McCartney AL, Dumas ME. Metabolic retroconversion of trimethylamine N-oxide and the gut microbiota. Microbiome 2018; 6:73. [PMID: 29678198 PMCID: PMC5909246 DOI: 10.1186/s40168-018-0461-0] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 04/13/2018] [Indexed: 05/24/2023]
Abstract
BACKGROUND The dietary methylamines choline, carnitine, and phosphatidylcholine are used by the gut microbiota to produce a range of metabolites, including trimethylamine (TMA). However, little is known about the use of trimethylamine N-oxide (TMAO) by this consortium of microbes. RESULTS A feeding study using deuterated TMAO in C57BL6/J mice demonstrated microbial conversion of TMAO to TMA, with uptake of TMA into the bloodstream and its conversion to TMAO. Microbial activity necessary to convert TMAO to TMA was suppressed in antibiotic-treated mice, with deuterated TMAO being taken up directly into the bloodstream. In batch-culture fermentation systems inoculated with human faeces, growth of Enterobacteriaceae was stimulated in the presence of TMAO. Human-derived faecal and caecal bacteria (n = 66 isolates) were screened on solid and liquid media for their ability to use TMAO, with metabolites in spent media analysed by 1H-NMR. As with the in vitro fermentation experiments, TMAO stimulated the growth of Enterobacteriaceae; these bacteria produced most TMA from TMAO. Caecal/small intestinal isolates of Escherichia coli produced more TMA from TMAO than their faecal counterparts. Lactic acid bacteria produced increased amounts of lactate when grown in the presence of TMAO but did not produce large amounts of TMA. Clostridia (sensu stricto), bifidobacteria, and coriobacteria were significantly correlated with TMA production in the mixed fermentation system but did not produce notable quantities of TMA from TMAO in pure culture. CONCLUSIONS Reduction of TMAO by the gut microbiota (predominantly Enterobacteriaceae) to TMA followed by host uptake of TMA into the bloodstream from the intestine and its conversion back to TMAO by host hepatic enzymes is an example of metabolic retroconversion. TMAO influences microbial metabolism depending on isolation source and taxon of gut bacterium. Correlation of metabolomic and abundance data from mixed microbiota fermentation systems did not give a true picture of which members of the gut microbiota were responsible for converting TMAO to TMA; only by supplementing the study with pure culture work and additional metabolomics was it possible to increase our understanding of TMAO bioconversions by the human gut microbiota.
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Affiliation(s)
- Lesley Hoyles
- Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Exhibition Road, London, SW7 2AZ UK
| | - Maria L. Jiménez-Pranteda
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, Faculty of Life Sciences, The University of Reading, Whiteknights Campus, Reading, RG6 6UR UK
| | - Julien Chilloux
- Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Exhibition Road, London, SW7 2AZ UK
| | - Francois Brial
- Sorbonne Universities, University Pierre & Marie Curie, University Paris Descartes, Sorbonne Paris Cité, INSERM UMR_S 1138, Cordeliers Research Centre, Paris, France
| | - Antonis Myridakis
- Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Exhibition Road, London, SW7 2AZ UK
| | - Thomas Aranias
- Sorbonne Universities, University Pierre & Marie Curie, University Paris Descartes, Sorbonne Paris Cité, INSERM UMR_S 1138, Cordeliers Research Centre, Paris, France
| | - Christophe Magnan
- Sorbonne Paris Cité, Université Denis Diderot, Unité de Biologie Fonctionnelle et Adaptative, CNRS UMR 8251, 75205 Paris, France
| | - Glenn R. Gibson
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, Faculty of Life Sciences, The University of Reading, Whiteknights Campus, Reading, RG6 6UR UK
| | - Jeremy D. Sanderson
- Department of Gastroenterology, Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
| | - Jeremy K. Nicholson
- Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Exhibition Road, London, SW7 2AZ UK
| | - Dominique Gauguier
- Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Exhibition Road, London, SW7 2AZ UK
- Sorbonne Universities, University Pierre & Marie Curie, University Paris Descartes, Sorbonne Paris Cité, INSERM UMR_S 1138, Cordeliers Research Centre, Paris, France
| | - Anne L. McCartney
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, Faculty of Life Sciences, The University of Reading, Whiteknights Campus, Reading, RG6 6UR UK
| | - Marc-Emmanuel Dumas
- Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Exhibition Road, London, SW7 2AZ UK
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Costabile A, Bergillos-Meca T, Rasinkangas P, Korpela K, de Vos WM, Gibson GR. Effects of Soluble Corn Fiber Alone or in Synbiotic Combination with Lactobacillus rhamnosus GG and the Pilus-Deficient Derivative GG-PB12 on Fecal Microbiota, Metabolism, and Markers of Immune Function: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study in Healthy Elderly (Saimes Study). Front Immunol 2017; 8:1443. [PMID: 29312280 PMCID: PMC5733116 DOI: 10.3389/fimmu.2017.01443] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 10/17/2017] [Indexed: 12/27/2022] Open
Abstract
Background The aging process leads to a potential decline in immune function and adversely affects the gut microbiota. To date, many in vitro and in vivo studies focused on the application of synbiotics (prebiotics combined with probiotics) as a promising dietary approach to affect gut microbiota composition and improved functioning of the immune system. However, studies using synbiotic preparations often have the limitation that it remains unclear whether any effect observed is a result of the prebiotic or probiotic or a synergistic effect of the combined supplement. Objectives We investigated the effects of a probiotic Lactobacillus rhamnosus GG and pilus-deficient L. rhamnosus GG-PB12 combined with Promitor™ Soluble Corn Fiber (SCF, a candidate prebiotic) on fecal microbiota, metabolism, immunity, and blood lipids in healthy elderly persons. A prospective, double-blind, placebo controlled, randomized, single-centered, crossover study in 40 healthy elderly subjects (aged 60–80 years) was carried out. Volunteers were randomized to consume either probiotic and prebiotic as synbiotic, prebiotic or placebo (maltodextrin) during 3 weeks. Three-week washout periods separated all the treatments. We assessed effects upon blood lipids, glucose, cytokines, natural killer (NK) cell activity, phenotype, and intestinal microbiota composition. SCF decreased IL-6, which was not observed with the synbiotics. Results Consumption of L. rhamnosus GG combined with SCF increased NK cell activity compared to baseline in females and the older group. In the fecal microbiota analyses, the strongest community shifts were due to L. rhamnosus GG combined with SCF and SCF treatments. L. rhamnosus GG combined with SCF and L. rhamnosus GG-PB12 combined with SCF significantly increased the genus Parabacteroides. L. rhamnosus GG combined with SCF and SCF increased concentrations of Ruminococcaceae Incertae Sedis. Oscillospira and Desulfovibrio slightly decreased in the L. rhamnosus GG combined with SCF group, whereas Desulfovibrio decreased also in the L. rhamnosus GG-PB12 combined with SCF group. L. rhamnosus GG combined with SCF reduced total cholesterol and LDL-cholesterol in volunteers with initially elevated concentrations. C-reactive protein significantly decreased during L. rhamnosus GG-PB12 combined with SCF intervention compared to baseline. Conclusion In conclusion, the synbiotic combination of L. rhamnosus GG with SCF showed a tendency to promote innate immunity by increasing NK cell activity in elderly women and in 70 to 80-year-old volunteers and decreased TC and LDL-c in hypercholesterolemic patients. In addition, L. rhamnosus GG-PB12 combined with SCF demonstrated an increase in NK cell activity compared to SCF alone in older volunteers. We also found significant positive effects on the immune response, evidenced by a decrease of the pro-inflammatory cytokine IL-6. Therefore, dietary intervention with L. rhamnosus GG combined with SCF could be of importance in elderly as an attractive option for enhancement of both the microbial and immune systems.
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Affiliation(s)
- Adele Costabile
- Health Sciences Research Centre, Life Sciences Department, Whitelands College, University of Roehampton, London, United Kingdom.,Department of Food and Nutritional Sciences, University of Reading, Reading, United Kingdom
| | - Triana Bergillos-Meca
- Health Sciences Research Centre, Life Sciences Department, Whitelands College, University of Roehampton, London, United Kingdom
| | - Pia Rasinkangas
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland
| | - Katri Korpela
- Immunobiology Research Program, Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - Willem M de Vos
- Department of Veterinary Biosciences, University of Helsinki, Helsinki, Finland.,Immunobiology Research Program, Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland.,Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading, United Kingdom
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26
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Costabile A, Buttarazzi I, Kolida S, Quercia S, Baldini J, Swann JR, Brigidi P, Gibson GR. An in vivo assessment of the cholesterol-lowering efficacy of Lactobacillus plantarum ECGC 13110402 in normal to mildly hypercholesterolaemic adults. PLoS One 2017; 12:e0187964. [PMID: 29228000 PMCID: PMC5724841 DOI: 10.1371/journal.pone.0187964] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/30/2017] [Indexed: 12/13/2022] Open
Abstract
Coronary heart disease (CHD) is one of the major causes of death and disability in industrialised countries, with elevated blood cholesterol an established risk factor. Total plasma cholesterol reduction in populations suffering from primary hypercholesterolemia may lower CHD incidence. This study investigated the cholesterol reducing capacity of Lactobacillus plantarum ECGC 13110402, a strain selected for its high bile salt hydrolase activity, in 49 normal to mildly hypercholesterolaemic adults. Primary efficacy outcomes included effect on blood lipids (total cholesterol (TC), low density lipoproteins (LDL-C), high density lipoproteins (HDL-C) and triacylgycerides (TAG), inflammatory biomarkers and occurrence/severity of gastrointestinal side effects to establish safety and tolerance of the intervention. Secondary outcomes included blood pressure, immune biomarkers, gut microbiota characterisation and metabonome changes. The study was run in a parallel, double blind, placebo controlled, randomised design in which the active group ingested 2x109 CFU encapsulated Lactobacillus plantarum ECGC 13110402 twice daily. Daily ingestion of the active treatment resulted in a statistically significant reduction in LDL-C in volunteers with baseline TC<5mM during the 0–12 week period (13.9%, P = 0.030), a significant reduction in TC in volunteers with baseline TC≥6mM in the 0–6 week period (37.6%, P = 0.045), a significant decrease in TAG (53.9% P = 0.030) and an increase in HDL-C (14.7%, P = 0.007) in the over 60 years population in the 6–12 week period. A statistically significant reduction in systolic blood pressure was also observed across the active study group in the 6-12-week period (6.6%, P = 0.003). No impact on gastrointestinal function and side effects was observed during the study. Similar to blood and urine metabonomic analyses, faecal metagenomics did not reveal significant changes upon active or placebo intake. The results of this study suggest that Lactobacillus plantarum ECGC 13110402 is a well-tolerated, natural probiotic, that may be used as an alternative or supplement to existing treatments to reduce cardiovascular risk. Trial registration: Clinical trials.gov NCT03263104
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Affiliation(s)
- Adele Costabile
- Health Sciences Research Centre, Life Sciences Department, Whitelands College, University of Roehampton, London, United Kingdom
- * E-mail:
| | - Ivan Buttarazzi
- Department of Food and Nutritional Sciences, University of Reading, Reading, United Kingdom
| | - Sofia Kolida
- Optibiotix Health plc, Innovation Centre, Innovation Way, Heslington, York, United Kingdom
| | - Sara Quercia
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Jessica Baldini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Jonathan R. Swann
- Division of Computational and Systems Medicine, Imperial College, London, United Kingdom
| | - Patrizia Brigidi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading, United Kingdom
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27
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Hobden MR, Guérin-Deremaux L, Commane DM, Rowland I, Gibson GR, Kennedy OB. A pilot investigation to optimise methods for a future satiety preload study. Pilot Feasibility Stud 2017; 3:61. [PMID: 29177071 PMCID: PMC5693544 DOI: 10.1186/s40814-017-0208-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 11/08/2017] [Indexed: 01/15/2023] Open
Abstract
Background Preload studies are used to investigate the satiating effects of foods and food ingredients. However, the design of preload studies is complex, with many methodological considerations influencing appetite responses. The aim of this pilot investigation was to determine acceptability, and optimise methods, for a future satiety preload study. Specifically, we investigated the effects of altering (i) energy intake at a standardised breakfast (gender-specific or non-gender specific), and (ii) the duration between mid-morning preload and ad libitum lunch meal, on morning appetite scores and energy intake at lunch. Methods Participants attended a single study visit. Female participants consumed a 214-kcal breakfast (n = 10) or 266-kcal breakfast (n = 10), equivalent to 10% of recommended daily energy intakes for females and males, respectively. Male participants (n = 20) consumed a 266-kcal breakfast. All participants received a 250-ml orange juice preload 2 h after breakfast. The impact of different study timings was evaluated in male participants, with 10 males following one protocol (protocol 1) and 10 males following another (protocol 2). The duration between preload and ad libitum lunch meal was 2 h (protocol 1) or 2.5 h (protocol 2), with the ad libitum lunch meal provided at 12.00 or 13.00, respectively. All female participants followed protocol 2. Visual analogue scale (VAS) questionnaires were used to assess appetite responses and food/drink palatability. Results Correlation between male and female appetite scores was higher with the provision of a gender-specific breakfast, compared to non-gender-specific breakfast (Pearson correlation of 0.747 and 0.479, respectively). No differences in subjective appetite or ad libitum energy intake were found between protocols 1 and 2. VAS mean ratings of liking, enjoyment, and palatability were all > 66 out of 100 mm for breakfast, preload, and lunch meals. Conclusions The findings of this pilot study confirm the acceptability of this methodology for future satiety preload studies. Appetite scores increased from preload to ad libitum lunch meal; however, no specific differences were found between protocols. The results highlight the importance of considering energy intake prior to preload provision, with a gender-specific breakfast improving the correlation between male and female appetite score responses to a morning preload.
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Affiliation(s)
- Mark R Hobden
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, The University of Reading, Reading, RG6 6AP UK
| | | | - Daniel M Commane
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, The University of Reading, Reading, RG6 6AP UK
| | - Ian Rowland
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, The University of Reading, Reading, RG6 6AP UK
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, The University of Reading, Reading, RG6 6AP UK
| | - Orla B Kennedy
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, The University of Reading, Reading, RG6 6AP UK
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Gibson GR, Hutkins R, Sanders ME, Prescott SL, Reimer RA, Salminen SJ, Scott K, Stanton C, Swanson KS, Cani PD, Verbeke K, Reid G. Expert consensus document: The International Scientific Association for Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of prebiotics. Nat Rev Gastroenterol Hepatol 2017; 14:491-502. [PMID: 28611480 DOI: 10.1038/nrgastro.2017.75] [Citation(s) in RCA: 2524] [Impact Index Per Article: 360.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In December 2016, a panel of experts in microbiology, nutrition and clinical research was convened by the International Scientific Association for Probiotics and Prebiotics to review the definition and scope of prebiotics. Consistent with the original embodiment of prebiotics, but aware of the latest scientific and clinical developments, the panel updated the definition of a prebiotic: a substrate that is selectively utilized by host microorganisms conferring a health benefit. This definition expands the concept of prebiotics to possibly include non-carbohydrate substances, applications to body sites other than the gastrointestinal tract, and diverse categories other than food. The requirement for selective microbiota-mediated mechanisms was retained. Beneficial health effects must be documented for a substance to be considered a prebiotic. The consensus definition applies also to prebiotics for use by animals, in which microbiota-focused strategies to maintain health and prevent disease is as relevant as for humans. Ultimately, the goal of this Consensus Statement is to engender appropriate use of the term 'prebiotic' by relevant stakeholders so that consistency and clarity can be achieved in research reports, product marketing and regulatory oversight of the category. To this end, we have reviewed several aspects of prebiotic science including its development, health benefits and legislation.
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Affiliation(s)
- Glenn R Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Whiteknights, PO Box 226, Reading RG6 6AP, UK
| | - Robert Hutkins
- Department of Food Science and Technology, 258 Food Innovation Center, University of Nebraska - Lincoln, Lincoln, Nebraska 68588-6205, USA
| | - Mary Ellen Sanders
- International Scientific Association for Probiotics and Prebiotics, 7119 S. Glencoe Court, Centennial, Colorado 80122, USA
| | - Susan L Prescott
- School of Paediatrics and Child Health, The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia
| | - Raylene A Reimer
- Faculty of Kinesiology and Department of Biochemistry and Molecular Biology, 2500 University Drive, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Seppo J Salminen
- Functional Foods Forum, Faculty of Medicine, Itäinen Pitkäkatu 4A, FI-20014, University of Turku, Turku 20014, Finland
| | - Karen Scott
- Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen, AB21 9SB, UK
| | - Catherine Stanton
- Teagasc Moorepark Food Research Centre, Fermoy, Cork, P61 C996, Ireland
| | - Kelly S Swanson
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, 1207 W Gregory Drive, Urbana, Illinois 61801, USA
| | - Patrice D Cani
- Université catholique de Louvain, Louvain Drug Research Institute, 73 Avenue E Mounier, WELBIO (Walloon Excellence in Life Sciences and Biotechnology), Metabolism and Nutrition Research Group, 1200 Brussels, Belgium
| | - Kristin Verbeke
- Translational Research in Gastrointestinal Disorders, KU Leuven, Targid - Herestraat 49, Leuven, Belgium and Leuven Food Science and Nutrition Research Centre, BE 3001, Leuven, Belgium
| | - Gregor Reid
- Lawson Health Research Institute, University of Western Ontario, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
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Grimaldi R, Cela D, Swann JR, Vulevic J, Gibson GR, Tzortzis G, Costabile A. In vitro fermentation of B-GOS: impact on faecal bacterial populations and metabolic activity in autistic and non-autistic children. FEMS Microbiol Ecol 2017; 93:fiw233. [PMID: 27856622 PMCID: PMC5155555 DOI: 10.1093/femsec/fiw233] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 11/16/2016] [Indexed: 12/31/2022] Open
Abstract
Children with autism spectrum disorders (ASD) often suffer gastrointestinal problems consistent with imbalances in the gut microbial population. Treatment with antibiotics or pro/prebiotics has been postulated to regulate microbiota and improve gut symptoms, but there is a lack of evidence for such approaches, especially for prebiotics. This study assessed the influence of a prebiotic galactooligosaccharide (B-GOS) on gut microbial ecology and metabolic function using faecal samples from autistic and non-autistic children in an in vitro gut model system. Bacteriology was analysed using flow cytometry combined with fluorescence in situ hybridization and metabolic activity by HPLC and 1H-NMR. Consistent with previous studies, the microbiota of children with ASD contained a higher number of Clostridium spp. and a lower number of bifidobacteria compared with non-autistic children. B-GOS administration significantly increased bifidobacterial populations in each compartment of the models, both with autistic and non-autistic-derived samples, and lactobacilli in the final vessel of non-autistic models. In addition, changes in other bacterial population have been seen in particular for Clostridium, Rosburia, Bacteroides, Atopobium, Faecalibacterium prausnitzii, Sutterella spp. and Veillonellaceae. Furthermore, the addition of B-GOS to the models significantly altered short-chain fatty acid production in both groups, and increased ethanol and lactate in autistic children.
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Affiliation(s)
- Roberta Grimaldi
- Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK
| | - Drinalda Cela
- Democritus University of Thrace, Department of Molecular Biology and Genetics, Alexandroupolis 68100, Greece
| | - Jonathan R Swann
- Division of Computational and Systems Medicine, Imperial College London, London SW7 2AZ, UK
| | - Jelena Vulevic
- Clasado Research Services Ltd., Science and Technology Centre, University of Reading, Reading RG2 9GW, UK
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK
| | - George Tzortzis
- Clasado Research Services Ltd., Science and Technology Centre, University of Reading, Reading RG2 9GW, UK
| | - Adele Costabile
- Health Sciences Research Centre, Life Sciences Department, Whitelands College, University of Roehampton, London SW7 2AZ, UK
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30
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Mills CE, Flury A, Marmet C, Poquet L, Rimoldi SF, Sartori C, Rexhaj E, Brenner R, Allemann Y, Zimmermann D, Gibson GR, Mottram DS, Oruna-Concha MJ, Actis-Goretta L, Spencer JPE. Mediation of coffee-induced improvements in human vascular function by chlorogenic acids and its metabolites: Two randomized, controlled, crossover intervention trials. Clin Nutr 2016; 36:1520-1529. [PMID: 28012692 DOI: 10.1016/j.clnu.2016.11.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 11/12/2016] [Accepted: 11/15/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND & AIMS Polyphenol intake has been linked to improvements in human vascular function, although data on hydroxycinnamates, such as chlorogenic acid (CGA) have not yet been studied. We aimed to investigate the impact of coffee intake rich in chlorogenic acid on human vascular function and whether CGAs are involved in potential effects. METHODS Two acute randomized, controlled, cross-over human intervention trials were conducted. The impact of coffee intake, matched for caffeine but differing in CGA content (89, and 310 mg) on flow-mediated dilatation (FMD) was assessed in 15 healthy male subjects. In a second intervention trial conducted with 24 healthy male subjects, the impact of pure 5-caffeoylquinic acid (5-CQA), the main CGA in coffee (5-CQA; 450 mg and 900 mg) on FMD was also investigated. RESULTS We observed a bi-phasic FMD response after low and high polyphenol, (89 mg and 310 mg CGA) intake, with increases at 1 (1.10 ± 0.43% and 1.34 ± 0.62%, respectively) and 5 (0.79% ± 0.32 and 1.52% ± 0.40, respectively) hours post coffee consumption. FMD responses to coffee intake was closely paralleled by the appearance of CGA metabolites in plasma, notably 3-, 4- and 5-feruloylquinic acid and ferulic-4'-O-sulfate at 1 h and isoferulic-3'-O-glucuronide and ferulic-4'-O-sulfate at 5 h. Intervention with purified 5-CQA (450 mg) also led to an improvement in FMD response relative to control (0.75 ± 1.31% at 1 h post intervention, p = 0.06) and concomitant appearance of plasma metabolites. CONCLUSIONS Coffee intake acutely improves human vascular function, an effect, in part, mediated by 5-CQA and its physiological metabolites. STUDY REGISTRATION The National Institutes of Health (NIH) on ClinicalTrials.govNCT01813981 and NCT01772784.
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Affiliation(s)
- Charlotte E Mills
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, RG2 6AP, Reading, UK
| | - Andreas Flury
- Department of Cardiology and Clinical Research, Inselspital, University Hospital Bern, CH-3010, Bern, Switzerland
| | - Cynthia Marmet
- Nestlé Research Centre, Route du Jorat 94, Lausanne, 1000, Switzerland
| | - Laura Poquet
- Nestlé Research Centre, Route du Jorat 94, Lausanne, 1000, Switzerland
| | - Stefano F Rimoldi
- Department of Cardiology and Clinical Research, Inselspital, University Hospital Bern, CH-3010, Bern, Switzerland
| | - Claudio Sartori
- Department of Internal Medicine, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Emrush Rexhaj
- Department of Cardiology and Clinical Research, Inselspital, University Hospital Bern, CH-3010, Bern, Switzerland
| | - Roman Brenner
- Department of Cardiology and Clinical Research, Inselspital, University Hospital Bern, CH-3010, Bern, Switzerland
| | - Yves Allemann
- Department of Cardiology and Clinical Research, Inselspital, University Hospital Bern, CH-3010, Bern, Switzerland
| | - Diane Zimmermann
- Nestlé Research Centre, Route du Jorat 94, Lausanne, 1000, Switzerland
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, RG2 6AP, Reading, UK
| | - Don S Mottram
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, RG2 6AP, Reading, UK
| | - Maria-Jose Oruna-Concha
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, RG2 6AP, Reading, UK
| | | | - Jeremy P E Spencer
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, RG2 6AP, Reading, UK.
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Liu Y, Gibson GR, Walton GE. An In Vitro Approach to Study Effects of Prebiotics and Probiotics on the Faecal Microbiota and Selected Immune Parameters Relevant to the Elderly. PLoS One 2016; 11:e0162604. [PMID: 27612304 PMCID: PMC5017648 DOI: 10.1371/journal.pone.0162604] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 08/25/2016] [Indexed: 12/21/2022] Open
Abstract
The aging process leads to alterations of gut microbiota and modifications to the immune response, such changes may be associated with increased disease risk. Prebiotics and probiotics can modulate microbiome changes induced by aging; however, their effects have not been directly compared. The aim of this study was to use anaerobic batch culture fermenters to assess the impact of various fermentable carbohydrates and microorganisms on the gut microbiota and selected immune markers. Elderly volunteers were used as donors for these experiments to enable relevance to an aging population. The impact of fermentation supernatants on immune markers relevant to the elderly were assessed in vitro. Levels of IL-1β, IL-6, IL-8, IL-10 and TNF-α in peripheral blood mononuclear cell culture supernatants were measured using flow cytometry. Trans-galactooligosaccharides (B-GOS) and inulin both stimulated bifidobacteria compared to other treatments (p<0.05). Fermentation supernatants taken from faecal batch cultures supplemented with B-GOS, inulin, B. bifidum, L. acidophilus and Ba. coagulans inhibited LPS induced TNF-α (p<0.05). IL-10 production, induced by LPS, was enhanced by fermentation supernatants from faecal batch cultures supplemented with B-GOS, inulin, B. bifidum, L. acidophilus, Ba. coagulans and Bac. thetaiotaomicron (p<0.05). To conclude, prebiotics and probiotics could lead to potentially beneficial effects to host health by targeting specific bacterial groups, increasing saccharolytic fermentation and decreasing inflammation associated with aging. Compared to probiotics, prebiotics led to greater microbiota modulation at the genus level within the fermenters.
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Affiliation(s)
- Yue Liu
- Department of Food and Nutritional Sciences, Whiteknights, PO Box 226, University of Reading, Reading, United Kingdom
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, Whiteknights, PO Box 226, University of Reading, Reading, United Kingdom
| | - Gemma E. Walton
- Department of Food and Nutritional Sciences, Whiteknights, PO Box 226, University of Reading, Reading, United Kingdom
- * E-mail:
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Guergoletto KB, Costabile A, Flores G, Garcia S, Gibson GR. In vitro fermentation of juçara pulp ( Euterpe edulis ) by human colonic microbiota. Food Chem 2016; 196:251-8. [DOI: 10.1016/j.foodchem.2015.09.048] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 08/03/2015] [Accepted: 09/14/2015] [Indexed: 01/14/2023]
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Likotrafiti E, Tuohy KM, Gibson GR, Rastall RA. Antimicrobial activity of selected synbiotics targeted for the elderly against pathogenic Escherichia coli strains. Int J Food Sci Nutr 2016; 67:83-91. [PMID: 26754553 DOI: 10.3109/09637486.2015.1134444] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The aim of the present study was to evaluate the antimicrobial activity of two synbiotic combinations, Lactobacillus fermentum with short-chain fructooligosaccharides (FOS-LF) and Bifidobacterium longum with isomaltooligosaccharides (IMO-BL), against enterohaemorrhagic Escherichia coli O157:H7 and enteropathogenic E. coli O86. Antimicrobial activity was determined (1) by co-culturing the synbiotics and pathogens in batch cultures, and (2) with the three-stage continuous culture system (gut model), inoculated with faecal slurry from an elderly donor. In the co-culture experiments, IMO-BL was significantly inhibitory to both E. coli strains, while FOS-LF was slightly inhibitory or not inhibitory. Factors other than acid production appeared to play a role in the inhibition. In the gut models, both synbiotics effectively inhibited E. coli O157 in the first vessel, but not in vessels 2 and 3. E. coli O86 was not significantly inhibited.
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Affiliation(s)
- E Likotrafiti
- a Department of Food Technology, Laboratory of Food Microbiology , A.T.E.I. of Thessaloniki , Thessaloniki , Greece
| | - K M Tuohy
- b Department of Food Quality and Nutrition , Research and Innovation Centre - Fondazione Edmund Mach , S. Michele ( TN ) , Italy
| | - G R Gibson
- c Department of Food and Nutritional Sciences , University of Reading , Reading , UK
| | - R A Rastall
- c Department of Food and Nutritional Sciences , University of Reading , Reading , UK
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Costabile A, Deaville ER, Morales AM, Gibson GR. Prebiotic Potential of a Maize-Based Soluble Fibre and Impact of Dose on the Human Gut Microbiota. PLoS One 2016; 11:e0144457. [PMID: 26731113 PMCID: PMC4701468 DOI: 10.1371/journal.pone.0144457] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 11/18/2015] [Indexed: 02/07/2023] Open
Abstract
Dietary management of the human gut microbiota towards a more beneficial composition is one approach that may improve host health. To date, a large number of human intervention studies have demonstrated that dietary consumption of certain food products can result in significant changes in the composition of the gut microbiota i.e. the prebiotic concept. Thus the prebiotic effect is now established as a dietary approach to increase beneficial gut bacteria and it has been associated with modulation of health biomarkers and modulation of the immune system. Promitor™ Soluble Corn Fibre (SCF) is a well-known maize-derived source of dietary fibre with potential selective fermentation properties. Our aim was to determine the optimum prebiotic dose of tolerance, desired changes to microbiota and fermentation of SCF in healthy adult subjects. A double-blind, randomised, parallel study was completed where volunteers (n = 8/treatment group) consumed 8, 14 or 21 g from SCF (6, 12 and 18 g/fibre delivered respectively) over 14-d. Over the range of doses studied, SCF was well tolerated Numbers of bifidobacteria were significantly higher for the 6 g/fibre/day compared to 12 g and 18 g/fibre delivered/day (mean 9.25 and 9.73 Log10 cells/g fresh faeces in the pre-treatment and treatment periods respectively). Such a numerical change of 0.5 Log10 bifidobacteria/g fresh faeces is consistent with those changes observed for inulin-type fructans, which are recognised prebiotics. A possible prebiotic effect of SCF was therefore demonstrated by its stimulation of bifidobacteria numbers in the overall gut microbiota during a short-term intervention.
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Affiliation(s)
- Adele Costabile
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, United Kingdom
- Health Sciences Research Centre, Life Sciences Department, Whitelands College, University of Roehampton, London, Holybourne Ave, London, SW15 4JD, United Kingdom
| | - Eddie R. Deaville
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, United Kingdom
| | - Agustin Martin Morales
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, United Kingdom
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, United Kingdom
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Hoyles L, Murphy J, Neve H, Heller KJ, Turton JF, Mahony J, Sanderson JD, Hudspith B, Gibson GR, McCartney AL, van Sinderen D. Klebsiella pneumoniae subsp. pneumoniae-bacteriophage combination from the caecal effluent of a healthy woman. PeerJ 2015; 3:e1061. [PMID: 26246963 PMCID: PMC4525690 DOI: 10.7717/peerj.1061] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Accepted: 06/06/2015] [Indexed: 12/17/2022] Open
Abstract
A sample of caecal effluent was obtained from a female patient who had undergone a routine colonoscopic examination. Bacteria were isolated anaerobically from the sample, and screened against the remaining filtered caecal effluent in an attempt to isolate bacteriophages (phages). A lytic phage, named KLPN1, was isolated on a strain identified as Klebsiella pneumoniae subsp. pneumoniae (capsular type K2, rmpA (+)). This Siphoviridae phage presents a rosette-like tail tip and exhibits depolymerase activity, as demonstrated by the formation of plaque-surrounding haloes that increased in size over the course of incubation. When screened against a panel of clinical isolates of K. pneumoniae subsp. pneumoniae, phage KLPN1 was shown to infect and lyse capsular type K2 strains, though it did not exhibit depolymerase activity on such hosts. The genome of KLPN1 was determined to be 49,037 bp (50.53 %GC) in length, encompassing 73 predicted ORFs, of which 23 represented genes associated with structure, host recognition, packaging, DNA replication and cell lysis. On the basis of sequence analyses, phages KLPN1 (GenBank: KR262148) and 1513 (a member of the family Siphoviridae, GenBank: KP658157) were found to be two new members of the genus "Kp36likevirus."
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Affiliation(s)
- Lesley Hoyles
- School of Microbiology, University College Cork, Cork, Ireland.,Department of Biomedical Sciences, University of Westminster, London, United Kingdom
| | - James Murphy
- School of Microbiology, University College Cork, Cork, Ireland
| | - Horst Neve
- Max Rubner-Institut (MRI), Institute of Microbiology and Biotechnology (MBT), Kiel, Germany
| | - Knut J Heller
- Max Rubner-Institut (MRI), Institute of Microbiology and Biotechnology (MBT), Kiel, Germany
| | - Jane F Turton
- Antimicrobial Resistance and Healthcare Associated Infections Reference Unit, Public Health England-Colindale, London, United Kingdom
| | - Jennifer Mahony
- School of Microbiology, University College Cork, Cork, Ireland
| | - Jeremy D Sanderson
- Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, United Kingdom
| | - Barry Hudspith
- Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, United Kingdom
| | - Glenn R Gibson
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading, Berkshire, United Kingdom
| | - Anne L McCartney
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading, Berkshire, United Kingdom
| | - Douwe van Sinderen
- School of Microbiology, University College Cork, Cork, Ireland.,Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
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Nyangale EP, Farmer S, Cash HA, Keller D, Chernoff D, Gibson GR. Bacillus coagulans GBI-30, 6086 Modulates Faecalibacterium prausnitzii in Older Men and Women. J Nutr 2015; 145:1446-52. [PMID: 25948780 DOI: 10.3945/jn.114.199802] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 03/31/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Advancing age is linked to a decrease in beneficial bacteria such as Bifidobacterium spp. and reduced aspects of innate immune function. OBJECTIVES We investigated whether daily consumption of a probiotic [Bacillus coagulans GBI-30, 6086 (BC30); GanedenBC(30)] could improve immune function and gut function in men and women aged 65-80 y, using a double-blind, placebo-controlled crossover design. METHOD Thirty-six volunteers were recruited and randomly assigned to receive either a placebo (microcrystalline cellulose) or the probiotic BC30 (1 × 10(9) colony-forming units/capsule). Volunteers consumed 1 treatment capsule per day for 28 d, followed by a 21-d washout period before switching to the other treatment. Blood and fecal samples were collected at the beginning and end of each treatment period. Fecal samples were used to enumerate bacterial groups and concentrations of calprotectin. Peripheral blood mononuclear cells (PBMCs) were extracted from whole blood to assess natural killer cell activity and lipopolysaccharide (LPS)-stimulated cytokine production. C-reactive protein concentrations were measured in plasma. RESULTS Consumption of BC30 significantly increased populations of Faecalibacterium prausnitzii by 0.1 log10 cells/mL more than during consumption of the placebo (P = 0.03), whereas populations of Bacillus spp. increased significantly by 0.5 log10 cells/mL from baseline in volunteers who consumed BC30 (P = 0.007). LPS-stimulated PBMCs showed a 0.2 ng/mL increase in the anti-inflammatory cytokine IL-10 28 d after consumption of BC30 (P < 0.05), whereas the placebo did not affect IL-10, and no overall difference was found in the effect of the treatments. CONCLUSIONS Daily consumption of BC30 by adults aged 65-80 y can increase beneficial groups of bacteria in the human gut and potentially increase production of anti-inflammatory cytokines. This study shows the potential benefits of a probiotic to improve dysbiosis via modulation of the microbiota in older persons.
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Affiliation(s)
- Edna P Nyangale
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom;
| | | | | | | | | | - Glenn R Gibson
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
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Costabile A, Walton GE, Tzortzis G, Vulevic J, Charalampopoulos D, Gibson GR. Development of a bread delivery vehicle for dietary prebiotics to enhance food functionality targeted at those with metabolic syndrome. Gut Microbes 2015; 6:300-9. [PMID: 26099034 PMCID: PMC4826129 DOI: 10.1080/19490976.2015.1064577] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Prebiotics are dietary carbohydrates that favourably modulate the gut microbiota. The aims of the present study were to develop a functional prebiotic bread using Bimuno®, (galactooligosaccharide (B-GOS) mixture), for modulation of the gut microbiota in vitro in individuals at risk of metabolic syndrome. A control bread, (no added prebiotic) and positive control bread (containing equivalent carbohydrate to B-GOS bread) were also developed. A 3-stage continuous in vitro colonic model was used to assess prebiotic functionality of the breads. Bacteria were quantified by fluorescence in situ hybridization and short chain fatty acids by gas chromatography. Ion-exchange chromatography was used to determine GOS concentration after bread production. Following B-GOS bread fermentation numbers of bifidobacteria and lactobacilli were significantly higher compared to controls. There was no significant degradation of B-GOS during bread manufacture, indicating GOS withstood the manufacturing process. Furthermore, based on previous research, increased bifidobacteria and butyrate levels could be of benefit to those with obesity related conditions. Our findings support utilization of prebiotic enriched bread for improving gastrointestinal health.
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Affiliation(s)
- Adele Costabile
- Department of Food and Nutritional Sciences; University of Reading, Reading, UK,Correspondence to: Adele Costabile;
| | - Gemma E Walton
- Department of Food and Nutritional Sciences; University of Reading, Reading, UK
| | | | | | | | - Glenn R Gibson
- Department of Food and Nutritional Sciences; University of Reading, Reading, UK
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Costabile A, Walton GE, Tzortzis G, Vulevic J, Charalampopoulos D, Gibson GR. Effects of orange juice formulation on prebiotic functionality using an in vitro colonic model system. PLoS One 2015; 10:e0121955. [PMID: 25807417 PMCID: PMC4373861 DOI: 10.1371/journal.pone.0121955] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 02/06/2015] [Indexed: 01/03/2023] Open
Abstract
A three-stage continuous fermentative colonic model system was used to monitor in vitro the effect of different orange juice formulations on prebiotic activity. Three different juices with and without Bimuno, a GOS mixture containing galactooligosaccharides (B-GOS) were assessed in terms of their ability to induce a bifidogenic microbiota. The recipe development was based on incorporating 2.75g B-GOS into a 250 ml serving of juice (65°Brix of concentrate juice). Alongside the production of B-GOS juice, a control juice--orange juice without any additional Bimuno and a positive control juice, containing all the components of Bimuno (glucose, galactose and lactose) in the same relative proportions with the exception of B-GOS were developed. Ion Exchange Chromotography analysis was used to test the maintenance of bimuno components after the production process. Data showed that sterilisation had no significant effect on concentration of B-GOS and simple sugars. The three juice formulations were digested under conditions resembling the gastric and small intestinal environments. Main bacterial groups of the faecal microbiota were evaluated throughout the colonic model study using 16S rRNA-based fluorescence in situ hybridization (FISH). Potential effects of supplementation of the juices on microbial metabolism were studied measuring short chain fatty acids (SCFAs) using gas chromatography. Furthermore, B-GOS juices showed positive modulations of the microbiota composition and metabolic activity. In particular, numbers of faecal bifidobacteria and lactobacilli were significantly higher when B-GOS juice was fermented compared to controls. Furthermore, fermentation of B-GOS juice resulted in an increase in Roseburia subcluster and concomitantly increased butyrate production, which is of potential benefit to the host. In conclusion, this study has shown B-GOS within orange juice can have a beneficial effect on the fecal microbiota.
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Affiliation(s)
- Adele Costabile
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Gemma E. Walton
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - George Tzortzis
- Clasado Research Services Ltd, Science and Technology Centre, Whiteknights, Reading, United Kingdom
| | - Jelena Vulevic
- Clasado Research Services Ltd, Science and Technology Centre, Whiteknights, Reading, United Kingdom
| | | | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
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Pereira DIA, Aslam MF, Frazer DM, Schmidt A, Walton GE, McCartney AL, Gibson GR, Anderson GJ, Powell JJ. Dietary iron depletion at weaning imprints low microbiome diversity and this is not recovered with oral Nano Fe(III). Microbiologyopen 2014; 4:12-27. [PMID: 25461615 PMCID: PMC4335973 DOI: 10.1002/mbo3.213] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/31/2014] [Accepted: 08/01/2014] [Indexed: 12/31/2022] Open
Abstract
Alterations in the gut microbiota have been recently linked to oral iron. We conducted two feeding studies including an initial diet-induced iron-depletion period followed by supplementation with nanoparticulate tartrate-modified ferrihydrite (Nano Fe(III): considered bioavailable to host but not bacteria) or soluble ferrous sulfate (FeSO4: considered bioavailable to both host and bacteria). We applied denaturing gradient gel electrophoresis and fluorescence in situ hybridization for study-1 and 454-pyrosequencing of fecal 16S rRNA in study-2. In study-1, the within-community microbial diversity increased with FeSO4 (P = 0.0009) but not with Nano Fe(III) supplementation. This was confirmed in study-2, where we also showed that iron depletion at weaning imprinted significantly lower within- and between-community microbial diversity compared to mice weaned onto the iron-sufficient reference diet (P < 0.0001). Subsequent supplementation with FeSO4 partially restored the within-community diversity (P = 0.006 in relation to the continuously iron-depleted group) but not the between-community diversity, whereas Nano Fe(III) had no effect. We conclude that (1) dietary iron depletion at weaning imprints low diversity in the microbiota that is not, subsequently, easily recovered; (2) in the absence of gastrointestinal disease iron supplementation does not negatively impact the microbiota; and (3) Nano Fe(III) is less available to the gut microbiota.
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Affiliation(s)
- Dora I A Pereira
- MRC Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, United Kingdom
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40
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Nyangale EP, Farmer S, Keller D, Chernoff D, Gibson GR. Effect of prebiotics on the fecal microbiota of elderly volunteers after dietary supplementation of Bacillus coagulans GBI-30, 6086. Anaerobe 2014; 30:75-81. [DOI: 10.1016/j.anaerobe.2014.09.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 09/01/2014] [Accepted: 09/03/2014] [Indexed: 12/16/2022]
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Costabile A, Santarelli S, Claus SP, Sanderson J, Hudspith BN, Brostoff J, Ward JL, Lovegrove A, Shewry PR, Jones HE, Whitley AM, Gibson GR. Effect of breadmaking process on in vitro gut microbiota parameters in irritable bowel syndrome. PLoS One 2014; 9:e111225. [PMID: 25356771 PMCID: PMC4214745 DOI: 10.1371/journal.pone.0111225] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 07/31/2014] [Indexed: 12/13/2022] Open
Abstract
A variety of foods have been implicated in symptoms of patients with Irritable Bowel Syndrome (IBS) but wheat products are most frequently cited by patients as a trigger. Our aim was to investigate the effects of breads, which were fermented for different lengths of time, on the colonic microbiota using in vitro batch culture experiments. A set of in vitro anaerobic culture systems were run over a period of 24 h using faeces from 3 different IBS donors (Rome Criteria-mainly constipated) and 3 healthy donors. Changes in gut microbiota during a time course were identified by fluorescence in situ hybridisation (FISH), whilst the small-molecular weight metabolomic profile was determined by NMR analysis. Gas production was separately investigated in non pH-controlled, 36 h batch culture experiments. Numbers of bifidobacteria were higher in healthy subjects compared to IBS donors. In addition, the healthy donors showed a significant increase in bifidobacteria (P<0.005) after 8 h of fermentation of a bread produced using a sourdough process (type C) compared to breads produced with commercial yeasted dough (type B) and no time fermentation (Chorleywood Breadmaking process) (type A). A significant decrease of δ-Proteobacteria and most Gemmatimonadetes species was observed after 24 h fermentation of type C bread in both IBS and healthy donors. In general, IBS donors showed higher rates of gas production compared to healthy donors. Rates of gas production for type A and conventional long fermentation (type B) breads were almost identical in IBS and healthy donors. Sourdough bread produced significantly lower cumulative gas after 15 h fermentation as compared to type A and B breads in IBS donors but not in the healthy controls. In conclusion, breads fermented by the traditional long fermentation and sourdough are less likely to lead to IBS symptoms compared to bread made using the Chorleywood Breadmaking Process.
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Affiliation(s)
- Adele Costabile
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Sara Santarelli
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Sandrine P. Claus
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Jeremy Sanderson
- King’s College London, Biomedical & Health Sciences, Dept. of Nutrition and Dietetics, London, United Kingdom
| | - Barry N. Hudspith
- King’s College London, Biomedical & Health Sciences, Dept. of Nutrition and Dietetics, London, United Kingdom
| | - Jonathan Brostoff
- King’s College London, Biomedical & Health Sciences, Dept. of Nutrition and Dietetics, London, United Kingdom
| | - Jane L. Ward
- Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
| | | | - Peter R. Shewry
- Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
- School of Agriculture, Policy and Development, Earley Gate, Reading, United Kingdom
| | - Hannah E. Jones
- School of Agriculture, Policy and Development, Earley Gate, Reading, United Kingdom
| | - Andrew M. Whitley
- Bread Matters Limited, Macbiehill Farmhouse, Lamancha, West Linton, Peeblesshire, Scotland
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
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Lamichhane S, Yde CC, Forssten S, Ouwehand AC, Saarinen M, Jensen HM, Gibson GR, Rastall R, Fava F, Bertram HC. Impact of dietary polydextrose fiber on the human gut metabolome. J Agric Food Chem 2014; 62:9944-9951. [PMID: 25231382 DOI: 10.1021/jf5031218] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The aim of the present study was to elucidate the impact of polydextrose PDX an soluble fiber, on the human fecal metabolome by high-resolution nuclear magnetic resonance (NMR) spectroscopy-based metabolomics in a dietary intervention study (n = 12). Principal component analysis (PCA) revealed a strong effect of PDX consumption on the fecal metabolome, which could be mainly ascribed to the presence of undigested fiber and oligosaccharides formed from partial degradation of PDX. Our results demonstrate that NMR-based metabolomics is a useful technique for metabolite profiling of feces and for testing compliance to dietary fiber intake in such trials. In addition, novel associations between PDX and the levels of the fecal metabolites acetate and propionate could be identified. The establishment of a correlation between the fecal metabolome and levels of Bifidobacterium (R(2) = 0.66) and Bacteroides (R(2) = 0.46) demonstrates the potential of NMR-based metabolomics to elucidate metabolic activity of bacteria in the gut.
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Affiliation(s)
- Santosh Lamichhane
- Department of Food Science, Aarhus University , Kirstinebjergvej 10, DK-5792 Aarslev, Denmark
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Hill C, Guarner F, Reid G, Gibson GR, Merenstein DJ, Pot B, Morelli L, Canani RB, Flint HJ, Salminen S, Calder PC, Sanders ME. Expert consensus document. The International Scientific Association for Probiotics and Prebiotics consensus statement on the scope and appropriate use of the term probiotic. Nat Rev Gastroenterol Hepatol 2014; 11:506-14. [PMID: 24912386 DOI: 10.1038/nrgastro.2014.66] [Citation(s) in RCA: 4464] [Impact Index Per Article: 446.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An expert panel was convened in October 2013 by the International Scientific Association for Probiotics and Prebiotics (ISAPP) to discuss the field of probiotics. It is now 13 years since the definition of probiotics and 12 years after guidelines were published for regulators, scientists and industry by the Food and Agriculture Organization of the United Nations and the WHO (FAO/WHO). The FAO/WHO definition of a probiotic--"live microorganisms which when administered in adequate amounts confer a health benefit on the host"--was reinforced as relevant and sufficiently accommodating for current and anticipated applications. However, inconsistencies between the FAO/WHO Expert Consultation Report and the FAO/WHO Guidelines were clarified to take into account advances in science and applications. A more precise use of the term 'probiotic' will be useful to guide clinicians and consumers in differentiating the diverse products on the market. This document represents the conclusions of the ISAPP consensus meeting on the appropriate use and scope of the term probiotic.
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Affiliation(s)
- Colin Hill
- Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
| | | | - Gregor Reid
- Lawson Health Research Institute and Departments of Microbiology &Immunology, and Surgery, University of Western Ontario, 268 Grosvenor Street, London, ON N6A 4V2, Canada
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Whiteknights, PO Box 226, Reading RG6 6AP, UK
| | - Daniel J Merenstein
- Department of Family Medicine, Georgetown University Medical Center, Building D 240, 4000 Reservoir Road NW, Washington, DC 20007, USA
| | - Bruno Pot
- Center for Infection and Immunity, Institut Pasteur de Lille, 1 Rue Prof Calmette, Lille 59019, France
| | - Lorenzo Morelli
- Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, Piacenza 29122, Italy
| | - Roberto Berni Canani
- Department of Translational Medical Science and European Laboratory for the Investigation of Food Induced Diseases, University of Naples Federico II, Naples 80131, Italy
| | - Harry J Flint
- Microbiology Group, Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Seppo Salminen
- Functional Foods Forum, University of Turku, Turku 20014, Finland
| | - Philip C Calder
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
| | - Mary Ellen Sanders
- International Scientific Association for Probiotics and Prebiotics, 7119 S. Glencoe Court, Centennial, CO 80122, USA
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Frost GS, Walton GE, Swann JR, Psichas A, Costabile A, Johnson LP, Sponheimer M, Gibson GR, Barraclough TG. Impacts of plant-based foods in ancestral hominin diets on the metabolism and function of gut microbiota in vitro. mBio 2014; 5:e00853-14. [PMID: 24846385 PMCID: PMC4030449 DOI: 10.1128/mbio.00853-14] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 04/15/2014] [Indexed: 12/15/2022] Open
Abstract
UNLABELLED Ancestral human populations had diets containing more indigestible plant material than present-day diets in industrialized countries. One hypothesis for the rise in prevalence of obesity is that physiological mechanisms for controlling appetite evolved to match a diet with plant fiber content higher than that of present-day diets. We investigated how diet affects gut microbiota and colon cells by comparing human microbial communities with those from a primate that has an extreme plant-based diet, namely, the gelada baboon, which is a grazer. The effects of potato (high starch) versus grass (high lignin and cellulose) diets on human-derived versus gelada-derived fecal communities were compared in vitro. We especially focused on the production of short-chain fatty acids, which are hypothesized to be key metabolites influencing appetite regulation pathways. The results confirmed that diet has a major effect on bacterial numbers, short-chain fatty acid production, and the release of hormones involved in appetite suppression. The potato diet yielded greater production of short-chain fatty acids and hormone release than the grass diet, even in the gelada cultures, which we had expected should be better adapted to the grass diet. The strong effects of diet on hormone release could not be explained, however, solely by short-chain fatty acid concentrations. Nuclear magnetic resonance spectroscopy found changes in additional metabolites, including betaine and isoleucine, that might play key roles in inhibiting and stimulating appetite suppression pathways. Our study results indicate that a broader array of metabolites might be involved in triggering gut hormone release in humans than previously thought. IMPORTANCE One theory for rising levels of obesity in western populations is that the body's mechanisms for controlling appetite evolved to match ancestral diets with more low-energy plant foods. We investigated this idea by comparing the effects of diet on appetite suppression pathways via the use of gut bacterial communities from humans and gelada baboons, which are modern-day primates with an extreme diet of low-energy plant food, namely, grass. We found that diet does play a major role in affecting gut bacteria and the production of a hormone that suppresses appetite but not in the direction predicted by the ancestral diet hypothesis. Also, bacterial products were correlated with hormone release that were different from those normally thought to play this role. By comparing microbiota and diets outside the natural range for modern humans, we found a relationship between diet and appetite pathways that was more complex than previously hypothesized on the basis of more-controlled studies of the effects of single compounds.
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Affiliation(s)
- Gary S Frost
- Nutrition and Dietetic Research Group, Section of Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Gemma E Walton
- Food Microbial Sciences Unit, School of Chemistry, Food and Pharmacy, University of Reading, Reading, United Kingdom
| | - Jonathan R Swann
- Food Microbial Sciences Unit, School of Chemistry, Food and Pharmacy, University of Reading, Reading, United Kingdom
| | - Arianna Psichas
- Nutrition and Dietetic Research Group, Section of Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Imperial College London, Hammersmith Hospital, London, United Kingdom
| | - Adele Costabile
- Food Microbial Sciences Unit, School of Chemistry, Food and Pharmacy, University of Reading, Reading, United Kingdom
| | - Laura P Johnson
- Department of Life Sciences, Imperial College London, Ascot, Berkshire, United Kingdom
| | - Matt Sponheimer
- Department of Anthropology, University of Colorado at Boulder, Boulder, Colorado, USA
| | - Glenn R Gibson
- Food Microbial Sciences Unit, School of Chemistry, Food and Pharmacy, University of Reading, Reading, United Kingdom
| | - Timothy G Barraclough
- Department of Life Sciences, Imperial College London, Ascot, Berkshire, United Kingdom
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Sanders ME, Lenoir-Wijnkoop I, Salminen S, Merenstein DJ, Gibson GR, Petschow BW, Nieuwdorp M, Tancredi DJ, Cifelli CJ, Jacques P, Pot B. Probiotics and prebiotics: prospects for public health and nutritional recommendations. Ann N Y Acad Sci 2014; 1309:19-29. [PMID: 24571254 DOI: 10.1111/nyas.12377] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Probiotics and prebiotics are useful interventions for improving human health through direct or indirect effects on the colonizing microbiota. However, translation of these research findings into nutritional recommendations and public health policy endorsements has not been achieved in a manner consistent with the strength of the evidence. More progress has been made with clinical recommendations. Conclusions include that beneficial cultures, including probiotics and live cultures in fermented foods, can contribute towards the health of the general population; prebiotics, in part due to their function as a special type of soluble fiber, can contribute to the health of the general population; and a number of challenges must be addressed in order to fully realize probiotic and prebiotic benefits, including the need for greater awareness of the accumulated evidence on probiotics and prebiotics among policy makers, strategies to cope with regulatory roadblocks to research, and high-quality human trials that address outstanding research questions in the field.
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Affiliation(s)
- Mary Ellen Sanders
- International Scientific Association for Probiotics and Prebiotics, Centennial, Colorado
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Likotrafiti E, Tuohy KM, Gibson GR, Rastall RA. An in vitro study of the effect of probiotics, prebiotics and synbiotics on the elderly faecal microbiota. Anaerobe 2014; 27:50-5. [PMID: 24685554 DOI: 10.1016/j.anaerobe.2014.03.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 02/24/2014] [Accepted: 03/02/2014] [Indexed: 12/21/2022]
Abstract
The use of dietary intervention in the elderly in order to beneficially modulate their gut microbiota has not been extensively studied. The influence of two probiotics (Bifidobacterium longum and Lactobacillus fermentum) and two prebiotics [isomaltooligosaccharides (IMO) and short-chain fructooligosaccharides (FOS)], individually and in synbiotic combinations (B. longum with IMO, L. fermentum with FOS) on the gut microbiota of elderly individuals was investigated using faecal batch cultures and three-stage continuous culture systems. Population changes of major bacterial groups were enumerated using fluorescent in situ hybridisation (FISH). B. longum and IMO alone significantly increased the Bifidobacterium count after 5 and 10 h of fermentation and their synbiotic combination significantly decreased the Bacteroides count after 5 h of fermentation. L. fermentum and FOS alone significantly increased the Bifidobacterium count after 10 h and 5, 10 and 24 h of fermentation respectively. B. longum with IMO as well as B. longum and IMO alone significantly increased acetic acid concentration during the fermentation in batch cultures. In the three-stage continuous culture systems, both synbiotic combinations increased the Bifidobacterium and Lactobacillus count in the third vessel representing the distal colon. In addition, the synbiotic combination of L. fermentum with scFOS resulted in a significant increase in the concentration of acetic acid. The results show that the elderly gut microbiota can be modulated in vitro with the appropriate pro-, pre- and synbiotics.
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Affiliation(s)
- Eleni Likotrafiti
- Department of Food Technology, Laboratory of Food Microbiology, A.T.E.I. of Thessaloniki, Thessaloniki, P.O. Box 141, GR 57400, Greece.
| | - Kieran M Tuohy
- IASMA Research and Innovation Centre - Fondazione Edmund Mach, Food Quality and Nutrition Area Via E. Mach 1, 38010 S. Michele (TN), Italy.
| | - Glenn R Gibson
- Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, United Kingdom.
| | - Robert A Rastall
- Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, United Kingdom.
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Chapman CMC, Gibson GR, Rowland I. Effects of single- and multi-strain probiotics on biofilm formation and in vitro adhesion to bladder cells by urinary tract pathogens. Anaerobe 2014; 27:71-6. [PMID: 24583095 DOI: 10.1016/j.anaerobe.2014.02.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/29/2014] [Accepted: 02/17/2014] [Indexed: 12/14/2022]
Abstract
PURPOSE There is increasing evidence that probiotic bacteria can inhibit and/or prevent urinary tract infections. Possible mechanisms include prevention of adhesion of pathogens to the bladder epithelium and inhibition of biofilm formation. Currently there is interest in the comparative efficacy of single probiotics vs. strain mixtures. We have therefore tested the inhibitory activity of four single probiotics and four probiotic mixtures towards the urinary tract pathogens Escherichia coli NCTC 9001 and Enterococcus faecalis NCTC 00775. METHODS Inhibition of biofilm formation by cell-free supernatants was tested using the Crystal Violet assay, while prevention of pathogen adhesion to host cells was tested by using bladder cancer cells as a model for the human urinary tract. RESULTS Under pH-controlled conditions, there was no significant inhibition of biofilm formation by any treatment. Without pH control, 5/8 treatments significantly inhibited biofilm production by E. coli, while 5/8 treatments inhibited production by E. faecalis. Using data from all Crystal Violet assays, there was no significant difference in the ability of single- and multi-strain probiotics to inhibit biofilm formation. In the cell culture assays, all treatments were able to significantly reduce numbers of pathogenic cells adhering to host cells by 2.5-3.5 logs. No significant difference was observed between the displacement caused by single strains and mixtures for either pathogen. CONCLUSIONS Inhibition of biofilm seems to be a major mechanism of urinary tract pathogen exclusion, related to, and possibly dependent upon, the probiotic ability to reduce environmental pH. Exclusion via competition of binding sites is a possible in vivo mechanism for these probiotics. If an additive or synergistic effect exists between strains within a mixture, it does not manifest itself in a greater effect through these two inhibitory mechanisms.
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Affiliation(s)
- C M C Chapman
- Department of Food and Nutritional Sciences, University of Reading, P.O. Box 226, Whiteknights, Reading RG6 6AP, United Kingdom.
| | - G R Gibson
- Department of Food and Nutritional Sciences, University of Reading, P.O. Box 226, Whiteknights, Reading RG6 6AP, United Kingdom
| | - I Rowland
- Department of Food and Nutritional Sciences, University of Reading, P.O. Box 226, Whiteknights, Reading RG6 6AP, United Kingdom
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Tejero-Sariñena S, Barlow J, Costabile A, Gibson GR, Rowland I. Antipathogenic activity of probiotics against Salmonella Typhimurium and Clostridium difficile in anaerobic batch culture systems: Is it due to synergies in probiotic mixtures or the specificity of single strains? Anaerobe 2013; 24:60-5. [DOI: 10.1016/j.anaerobe.2013.09.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 09/10/2013] [Accepted: 09/23/2013] [Indexed: 01/01/2023]
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Hobden MR, Martin-Morales A, Guérin-Deremaux L, Wils D, Costabile A, Walton GE, Rowland I, Kennedy OB, Gibson GR. In vitro fermentation of NUTRIOSE(®) FB06, a wheat dextrin soluble fibre, in a continuous culture human colonic model system. PLoS One 2013; 8:e77128. [PMID: 24204753 PMCID: PMC3811981 DOI: 10.1371/journal.pone.0077128] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 09/05/2013] [Indexed: 01/01/2023] Open
Abstract
Wheat dextrin soluble fibre may have metabolic and health benefits, potentially acting via mechanisms governed by the selective modulation of the human gut microbiota. Our aim was to examine the impact of wheat dextrin on the composition and metabolic activity of the gut microbiota. We used a validated in vitro three-stage continuous culture human colonic model (gut model) system comprised of vessels simulating anatomical regions of the human colon. To mimic human ingestion, 7 g of wheat dextrin (NUTRIOSE® FB06) was administered to three gut models, twice daily at 10.00 and 15.00, for a total of 18 days. Samples were collected and analysed for microbial composition and organic acid concentrations by 16S rRNA-based fluorescence in situ hybridisation and gas chromatography approaches, respectively. Wheat dextrin mediated a significant increase in total bacteria in vessels simulating the transverse and distal colon, and a significant increase in key butyrate-producing bacteria Clostridium cluster XIVa and Roseburia genus in all vessels of the gut model. The production of principal short-chain fatty acids, acetate, propionate and butyrate, which have been purported to have protective, trophic and metabolic host benefits, were increased. Specifically, wheat dextrin fermentation had a significant butyrogenic effect in all vessels of the gut model and significantly increased production of acetate (vessels 2 and 3) and propionate (vessel 3), simulating the transverse and distal regions of the human colon, respectively. In conclusion, wheat dextrin NUTRIOSE® FB06 is selectively fermented in vitro by Clostridium cluster XIVa and Roseburia genus and beneficially alters the metabolic profile of the human gut microbiota.
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Affiliation(s)
- Mark R. Hobden
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
- * E-mail:
| | - Agustin Martin-Morales
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | | | | | - Adele Costabile
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Gemma E. Walton
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Ian Rowland
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Orla B. Kennedy
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
| | - Glenn R. Gibson
- Department of Food and Nutritional Sciences, The University of Reading, Reading, United Kingdom
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Brück WM, Gibson GR, Brück TB. The effect of proteolysis on the induction of cell death by monomeric alpha-lactalbumin. Biochimie 2013; 97:138-43. [PMID: 24139905 DOI: 10.1016/j.biochi.2013.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 10/08/2013] [Indexed: 11/27/2022]
Abstract
α-Lactalbumin (α-la) is a major whey protein found in milk. Previous data suggested that α-la has antiproliferative effects in human adenocarcinoma cell lines such as Caco-2 and HT-29. However, the cell death inducing α-la was not a naturally occurring monomer but either a multimeric variant or an α-la:oleic acid complex (HAMLET/BAMLET). Proteolysis showed that both human and bovine α-la are susceptible to digestion. ELISA assays assessing cell death with the native undigested α-la fractions showed that undigested protein fractions did have a significant cell death effect on CaCo-2 cells. Bovine α-la was also more effective than human α-la. A reduction in activity corresponded with lower concentrations of the protein and partial digestion and fragmentation of the protein using trypsin and pepsin. This suggests that the tertiary structure is vital for the apoptotic effect.
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Affiliation(s)
- Wolfram M Brück
- CAMBio, Letterkenny Institute of Technology, Port Road, Letterkenny, Co. Donegal, Ireland.
| | - Glenn R Gibson
- Food Microbial Sciences Unit, School of Chemistry, Food and Pharmacy, University of Reading, Reading, UK
| | - Thomas B Brück
- Technische Universität München (TUM), Department of Chemistry, Division of Industrial Biocatalysis, Lichtenberg Str. 4, 85748 Garching bei München, Germany
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