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Gou H, Zeng R, Lau HCH, Yu J. Gut microbial metabolites: Shaping future diagnosis and treatment against gastrointestinal cancer. Pharmacol Res 2024; 208:107373. [PMID: 39197712 DOI: 10.1016/j.phrs.2024.107373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 08/01/2024] [Accepted: 08/22/2024] [Indexed: 09/01/2024]
Abstract
Gastrointestinal cancer is a worldwide health challenge due to its dramatically increasing prevalence and as a leading cause of cancer-related mortality. Increasing evidence has illustrated the vital role of gut microbes-derived metabolites in gastrointestinal cancer progression and treatment. Microbial metabolites are produced by the gut microbiota that utilizes both extrinsic dietary components and intrinsic host-generated compounds. Meanwhile, certain categories of metabolites such as short-chain fatty acids, bile acids, tryptophan, and indole derivatives, are linked to gastrointestinal malignancy. In this review, the major classes of microbial metabolites and their impacts on various gastrointestinal cancers including colorectal cancer, gastric cancer, and hepatocellular carcinoma, have been introduced. The application of microbial metabolites as predictive biomarkers for early diagnosis and prognosis of gastrointestinal cancer has also been explored. In addition, therapeutic potential of strategies that target microbial metabolites against gastrointestinal cancer is further evaluated.
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Affiliation(s)
- Hongyan Gou
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR
| | - Ruijie Zeng
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR
| | - Harry Cheuk Hay Lau
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR
| | - Jun Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR.
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Yang G, Zhang J, Liu Y, Sun J, Ge L, Lu L, Long K, Li X, Xu D, Ma J. Acetate Alleviates Gut Microbiota Depletion-Induced Retardation of Skeletal Muscle Growth and Development in Young Mice. Int J Mol Sci 2024; 25:5129. [PMID: 38791168 PMCID: PMC11121558 DOI: 10.3390/ijms25105129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
The normal growth and development of skeletal muscle is essential for the health of the body. The regulation of skeletal muscle by intestinal microorganisms and their metabolites has been continuously demonstrated. Acetate is the predominant short-chain fatty acids synthesized by gut microbiota through the fermentation of dietary fiber; however, the underlying molecular mechanisms governing the interaction between acetate and skeletal muscle during the rapid growth stage remains to be further elucidated. Herein, specific pathogen-free (SPF) mice, germ-free (GF) mice, and germ-free mice supplemented with sodium acetate (GS) were used to evaluate the effects of acetate on the skeletal muscle growth and development of young mice with gut microbiota deficiency. We found that the concentration of serum acetate, body mass gain, succinate dehydrogenase activity, and expression of the myogenesis maker gene of skeletal muscle in the GS group were higher than those in the GF group, following sodium acetate supplementation. Furthermore, the transcriptome analysis revealed that acetate activated the biological processes that regulate skeletal muscle growth and development in the GF group, which are otherwise inhibited due to a gut microbiota deficiency. The in vitro experiment showed that acetate up-regulated Gm16062 to promote skeletal muscle cell differentiation. Overall, our findings proved that acetate promotes skeletal muscle growth and development in young mice via increasing Gm16062 expression.
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Affiliation(s)
- Guitao Yang
- State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, and Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (G.Y.); (Y.L.); (L.L.); (K.L.); (X.L.)
| | - Jinwei Zhang
- Chongqing Academy of Animal Science, Chongqing 402460, China; (J.Z.); (J.S.); (L.G.); (D.X.)
| | - Yan Liu
- State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, and Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (G.Y.); (Y.L.); (L.L.); (K.L.); (X.L.)
| | - Jing Sun
- Chongqing Academy of Animal Science, Chongqing 402460, China; (J.Z.); (J.S.); (L.G.); (D.X.)
| | - Liangpeng Ge
- Chongqing Academy of Animal Science, Chongqing 402460, China; (J.Z.); (J.S.); (L.G.); (D.X.)
| | - Lu Lu
- State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, and Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (G.Y.); (Y.L.); (L.L.); (K.L.); (X.L.)
| | - Keren Long
- State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, and Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (G.Y.); (Y.L.); (L.L.); (K.L.); (X.L.)
| | - Xuewei Li
- State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, and Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (G.Y.); (Y.L.); (L.L.); (K.L.); (X.L.)
| | - Dengfeng Xu
- Chongqing Academy of Animal Science, Chongqing 402460, China; (J.Z.); (J.S.); (L.G.); (D.X.)
| | - Jideng Ma
- State Key Laboratory of Swine and Poultry Breeding Industry, Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, and Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (G.Y.); (Y.L.); (L.L.); (K.L.); (X.L.)
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Jalili M, Nazari M, Magkos F. Fermented Foods in the Management of Obesity: Mechanisms of Action and Future Challenges. Int J Mol Sci 2023; 24:ijms24032665. [PMID: 36768984 PMCID: PMC9916812 DOI: 10.3390/ijms24032665] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 02/03/2023] Open
Abstract
Fermented foods are part of the staple diet in many different countries and populations and contain various probiotic microorganisms and non-digestible prebiotics. Fermentation is the process of breaking down sugars by bacteria and yeast species; it not only enhances food preservation but can also increase the number of beneficial gut bacteria. Regular consumption of fermented foods has been associated with a variety of health benefits (although some health risks also exist), including improved digestion, enhanced immunity, and greater weight loss, suggesting that fermented foods have the potential to help in the design of effective nutritional therapeutic approaches for obesity. In this article, we provide a comprehensive overview of the health effects of fermented foods and the corresponding mechanisms of action in obesity and obesity-related metabolic abnormalities.
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Affiliation(s)
- Mahsa Jalili
- Department of Nutrition, Exercise, and Sports, University of Copenhagen, 1165 Copenhagen, Denmark
| | - Maryam Nazari
- Food Safety Research Center (Salt), Semnan University of Medical Sciences, Semnan JF62+4W5, Iran
| | - Faidon Magkos
- Department of Nutrition, Exercise, and Sports, University of Copenhagen, 1165 Copenhagen, Denmark
- Correspondence:
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Mah E, Liska DJ, Goltz S, Chu Y. The effect of extracted and isolated fibers on appetite and energy intake: A comprehensive review of human intervention studies. Appetite 2023; 180:106340. [PMID: 36216214 DOI: 10.1016/j.appet.2022.106340] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/08/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022]
Abstract
In light of the increasing prevalence of obesity and cardiometabolic diseases, the underconsumption of fiber is concerning due to its various associated health benefits such as weight management. Adding extracted or isolated dietary fibers into various consumer products is a practical strategy for addressing the fiber gap. This comprehensive review identified evidence on the efficacy of different types of extracted and isolated fibers in reducing appetite and energy intake. Published reports of randomized controlled trials assessing appetite or energy intake in healthy adults were systematically searched, and those investigating extracted and isolated fibers following acute or chronic intake were selected. A total of 136 studies, consisting of 107 acute studies and 29 chronic studies, were included in the review. Overall, most fiber types did not show significant effects on appetite ratings and energy intakes. Acute intakes of two viscous fibers, alginate or guar gum, as well as oat fiber, were observed to most frequently result in reductions in appetite ratings. Additionally, chronic, but not acute, intakes of resistant maltodextrin/dextrin were also beneficial for appetite ratings. Viscous fibers were more likely to improve appetite ratings compared to non-viscous fibers, and fermentability did not appear to affect appetite ratings. Unfortunately, the current evidence base is highly varied due to the many differences in methodology and limited research on many of the fibers. While the possible benefits of extracted and isolated fibers on appetite sensations, food intake, and ultimately body weight regulation should not be completely dismissed, our review highlights the complexity of this research area and the gaps that need to be addressed to improve the robustness of the evidence.
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Pham MT, Tran TD, Zayabaatar E. Leuconostoc mesenteroides utilizes glucose fermentation to produce electricity and ameliorates high-fat diet-induced abdominal fat mass. Arch Microbiol 2022; 204:670. [PMID: 36241916 DOI: 10.1007/s00203-022-03281-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/21/2022] [Accepted: 10/06/2022] [Indexed: 11/02/2022]
Abstract
Bacteria capable of producing electricity in intestinal microbiota have been discovered. However, no studies have explored butyric acid which generated by electrogenic bacteria on the host organism have significant physiological impacts on certain organs. We found that the capacity for electrical current generation by the commensal gut Leuconostoc mesenteroides EH-1 (L. mesenteroides EH-1) during glucose fermentation. The electricity production was essential for the gut colonization of L. mesenteroides EH-1 since the inhibition of electricity production by cyclophilin A inhibitor (TMN355) significantly diminished the number of bacteria attached to the human gut epithelial cell surface. The adipocyte differentiation contributes to the increased 4-hydroxy-2-nonenal (4-HNE), considered as a biomarker of reactive oxygen species (ROS). The effect of intestinal electrogenic microbiota in the high-fat diet (HFD)-induced 4-HNE and abdominal fat accumulation in mice was investigated in this study. The oral administration of glucose with a butyric acid-producing L. mesenteroides EH-1 bacterium attenuated the expression of 4-HNE and abdominal fat. The level of 4-HNE and abdominal fat depot were markedly increased in mice administered with cyclophilin A inhibitor-pretreated bacteria or GLPG-0974, an antagonist of free fatty acid receptor 2 (Ffar2). Our studies suggest a novel means by which the probiotic bacteria can modulate fat mass deposition and oxidative stress via the cyclophilin A-mediated electron production and the butyric acid-activated Ffar2 pathway.
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Affiliation(s)
- Minh Tan Pham
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Thi Dung Tran
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Enkhbat Zayabaatar
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, Taiwan
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Akhlaghi M. The role of dietary fibers in regulating appetite, an overview of mechanisms and weight consequences. Crit Rev Food Sci Nutr 2022; 64:3139-3150. [PMID: 36193993 DOI: 10.1080/10408398.2022.2130160] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Dietary fibers prevent obesity through reduction of hunger and prolongation of satiety. A number of mechanical and endocrine signals from gastrointestinal tract are stimulated by fibers and their fermentation products, reach regions of brain involved in the regulation of appetite, and ultimately reduce food intake. Gastric distention, delayed gastric emptying, prevention of hypoglycemic, increased amounts of unabsorbed nutrients reaching to the ileum, and stimulation of enteroendocrine cells for secretion of cholecystokinin, glucagon-like peptide-1 (GLP-1), and peptide YY are among mechanisms of fibers in decreasing hunger and prolongation of satiety. Fermentation of fibers produces short-chain fatty acids that also stimulates enteroendocrine cells to secrete GLP-1 and PYY. Randomized controlled trials have shown reductions in energy intake and body weight along with increased satiation and reduced hunger following consumption of fibers. Prospective cohort studies have confirmed these results but the extent of weight loss in some studies has been small. Controversies exist between studies particularly for the effect of fibers on the gastrointestinal hormones, subsequent food intake, and the resultant weight loss. More studies are needed before a clear conclusion can be drawn especially for the effect of fibers on appetite-related hormones and weight loss.
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Affiliation(s)
- Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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7
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Kondo T, Chiba T, Tousen Y. Short-chain fatty acids, acetate and propionate, directly upregulate osteoblastic differentiation. Int J Food Sci Nutr 2022; 73:800-808. [PMID: 35616294 DOI: 10.1080/09637486.2022.2078285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Short-chain fatty acids, including acetate, propionate, and butyrate are metabolites of dietary fibre produced by microbiota in the large intestine, have been proposed to contribute to effects on bone homeostasis. However, it is unclear whether they are used in osteoblasts and directly affect bone formation. We investigated whether short-chain fatty acids are absorbed in osteoblast cells and influence early osteoblastic differentiation using MC3T3-E1 cells. Acetate and propionate upregulated alkaline phosphatase activity, which is an osteoblast differentiation marker, and acetate upregulated alkaline phosphatase mRNA expression after treatment for 9 days, whereas butyrate did not in MC3T3-E1 cells. Butyrate was absorbed more rapidly and to a greater extent than acetate and propionate. These results indicate that short-chain fatty acids were used in osteoblastic cells, and particularly acetate and propionate directly upregulated differentiation in primary osteoblasts. Therefore, acetate and propionate might be useful for maintaining a positive balance of bone turnover.
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Affiliation(s)
- Takashi Kondo
- Department of Food Function and Labeling, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation and Health and Nutrition, Tokyo, Japan
| | - Tsuyoshi Chiba
- Department of Food Function and Labeling, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation and Health and Nutrition, Tokyo, Japan
| | - Yuko Tousen
- Department of Food Function and Labeling, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation and Health and Nutrition, Tokyo, Japan
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Hajipour A, Afsharfar M, Jonoush M, Ahmadzadeh M, Gholamalizadeh M, Hassanpour Ardekanizadeh N, Doaei S, Mohammadi‐Nasrabadi F. The effects of dietary fiber on common complications in critically ill patients; with a special focus on viral infections; a systematic reveiw. Immun Inflamm Dis 2022; 10:e613. [PMID: 35478440 PMCID: PMC9017620 DOI: 10.1002/iid3.613] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/16/2022] [Accepted: 03/14/2022] [Indexed: 12/17/2022] Open
Abstract
Background Viral infections are mostly highly contagious and may cause widespread health problems. Some studies reported that the dietary fiber (DF) may be effective in reducing the complications of viral infections in intensive care unit (ICU) patients. The present review study aimed to investigate the effect of DF on common complications in critically ill patients with viral infections. Methods A literature review was conducted for the published papers in English from January 2001 to July 2021 using related keywords. Studies with clinical trial or case‐control design described the effects of fiber intake on the complications of viral infections in patients admitted to the ICU were collected. Results DF may reduce the mortality rate of viral infections through modulating inflammatory processes. A higher intake of DF intake may improve hyperglycemia and impaired glucose tolerance in patients with viral infections. A high‐fiber formula in enteral nutrition was reported to reduce the risk of diarrhea in patients with viral infections. Conclusion DF may reduce the complications of viral infections such as inflammation, diarrhea, hyperglycemia, and mortality in critically ill patients. Future longitudinal studies on the amount and type of DF are warranted.
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Affiliation(s)
- Azadeh Hajipour
- Department of Nutrition, School of Health Qazvin University of Medical Sciences Qazvin Iran
| | - Maryam Afsharfar
- Department of Nutrition, School of Medicine Zahedan University of Medical Sciences Zahedan Iran
| | - Mona Jonoush
- Department of Nutrition, School of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Mina Ahmadzadeh
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Maryam Gholamalizadeh
- School of Medicine, Cancer Research Center Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Naeemeh Hassanpour Ardekanizadeh
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Saeid Doaei
- Reproductive Health Research Center, Department of Obstetrics and Gynecology, School of Medicine, Al‐Zahra Hospital Guilan University of Medical Sciences Rasht Iran
| | - Fatemeh Mohammadi‐Nasrabadi
- Department of Food and Nutrition Policy and Planning Research, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran
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Cook TM, Gavini CK, Jesse J, Aubert G, Gornick E, Bonomo R, Gautron L, Layden BT, Mansuy-Aubert V. Vagal neuron expression of the microbiota-derived metabolite receptor, free fatty acid receptor (FFAR3), is necessary for normal feeding behavior. Mol Metab 2021; 54:101350. [PMID: 34626852 PMCID: PMC8567301 DOI: 10.1016/j.molmet.2021.101350] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/15/2021] [Accepted: 09/30/2021] [Indexed: 12/12/2022] Open
Abstract
Objective The vagus nerve provides a direct line of communication between the gut and the brain for proper regulation of energy balance and glucose homeostasis. Short-chain fatty acids (SCFAs) produced via gut microbiota fermentation of dietary fiber have been proposed to regulate host metabolism and feeding behavior via the vagus nerve, but the molecular mechanisms have not yet been elucidated. We sought to identify the G-protein-coupled receptors within vagal neurons that mediate the physiological and therapeutic benefits of SCFAs. Methods SCFA, particularly propionate, signaling occurs via free fatty acid receptor 3 (FFAR3), that we found expressed in vagal sensory neurons innervating throughout the gut. The lack of cell-specific animal models has impeded our understanding of gut/brain communication; therefore, we generated a mouse model for cre-recombinase-driven deletion of Ffar3. We comprehensively characterized the feeding behavior of control and vagal-FFAR3 knockout (KO) mice in response to various conditions including fasting/refeeding, western diet (WD) feeding, and propionate supplementation. We also utilized ex vivo organotypic vagal cultures to investigate the signaling pathways downstream of propionate FFAR3 activation. Results Vagal-FFAR3KO led to increased meal size in males and females, and increased food intake during fasting/refeeding and WD challenges. In addition, the anorectic effect of propionate supplementation was lost in vagal-FFAR3KO mice. Sequencing approaches combining ex vivo and in vivo experiments revealed that the cross-talk of FFAR3 signaling with cholecystokinin (CCK) and leptin receptor pathways leads to alterations in food intake. Conclusion Altogether, our data demonstrate that FFAR3 expressed in vagal neurons regulates feeding behavior and mediates propionate-induced decrease in food intake. Lack of vagal FFAR3 increases food intake. Anorectic effect of propionate is lost when FFAR3 is absent from vagal neurons. FFAR3 signaling cross-talks with cholecystokinin (CCK) and leptin receptor pathways to alter food intake.
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Affiliation(s)
- Tyler M Cook
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood IL, 60153, USA
| | - Chaitanya K Gavini
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood IL, 60153, USA
| | - Jason Jesse
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood IL, 60153, USA
| | - Gregory Aubert
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood IL, 60153, USA; Department of Internal Medicine, Division of Cardiology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL 60153, USA
| | - Emily Gornick
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood IL, 60153, USA
| | - Raiza Bonomo
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood IL, 60153, USA
| | - Laurent Gautron
- Center for Hypothalamic Research, Department of Internal Medicine, The University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, 75390, TX, USA
| | - Brian T Layden
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Virginie Mansuy-Aubert
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood IL, 60153, USA.
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Nogal A, Valdes AM, Menni C. The role of short-chain fatty acids in the interplay between gut microbiota and diet in cardio-metabolic health. Gut Microbes 2021; 13:1-24. [PMID: 33764858 PMCID: PMC8007165 DOI: 10.1080/19490976.2021.1897212] [Citation(s) in RCA: 289] [Impact Index Per Article: 96.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/29/2021] [Accepted: 02/15/2021] [Indexed: 02/04/2023] Open
Abstract
The gut microbiota plays an important role in cardio-metabolic diseases with diet being among the strongest modulators of gut microbiota composition and function. Resistant dietary carbohydrates are fermented to short-chain fatty acids (SCFAs) by the gut bacteria. Fiber and omega-3 rich diets increase SCFAs production and abundance of SCFA-producing bacteria. Likewise, SCFAs can improve gut barrier integrity, glucose, and lipid metabolism, regulate the immune system, the inflammatory response, and blood pressure. Therefore, targeting the gut microbiota with dietary strategies leading to increased SCFA production may benefit cardio-metabolic health. In this review, we provide an overview of the association between diet, SCFAs produced by the gut microbiota and cardio-metabolic diseases. We first discuss the association between the human gut microbiota and cardio-metabolic diseases, then investigate the role of SCFAs and finally explore the beneficial effects of specific dietary interventions that can improve cardio-metabolic outcomes through boosting the SCFA production.
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Affiliation(s)
- Ana Nogal
- Department of Twin Research, King’s College London, St Thomas’ Hospital Campus, London, UK
| | - Ana M. Valdes
- Department of Twin Research, King’s College London, St Thomas’ Hospital Campus, London, UK
- School of Medicine, Nottingham City Hospital, Nottingham, UK
- NIHR Nottingham Biomedical Research Centre, Nottingham, UK
| | - Cristina Menni
- Department of Twin Research, King’s College London, St Thomas’ Hospital Campus, London, UK
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Le Dréan G, Pocheron AL, Billard H, Grit I, Pagniez A, Parnet P, Chappuis E, Rolli-Derkinderen M, Michel C. Neonatal Consumption of Oligosaccharides Greatly Increases L-Cell Density without Significant Consequence for Adult Eating Behavior. Nutrients 2019; 11:nu11091967. [PMID: 31438620 PMCID: PMC6769936 DOI: 10.3390/nu11091967] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/13/2019] [Accepted: 08/14/2019] [Indexed: 12/13/2022] Open
Abstract
Oligosaccharides (OS) are commonly added to infant formulas, however, their physiological impact, particularly on adult health programming, is poorly described. In adult animals, OS modify microbiota and stimulate colonic fermentation and enteroendocrine cell (EEC) activity. Since neonatal changes in microbiota and/or EEC density could be long-lasting and EEC-derived peptides do regulate short-term food intake, we hypothesized that neonatal OS consumption could modulate early EECs, with possible consequences for adult eating behavior. Suckling rats were supplemented with fructo-oligosaccharides (FOS), beta-galacto-oligosaccharides/inulin (GOS/In) mix, alpha-galacto-oligosaccharides (αGOS) at 3.2 g/kg, or a control solution (CTL) between postnatal day (PND) 5 and 14/15. Pups were either sacrificed at PND14/15 or weaned at PND21 onto standard chow. The effects on both microbiota and EEC were characterized at PND14/15, and eating behavior at adulthood. Very early OS supplementation drastically impacted the intestinal environment, endocrine lineage proliferation/differentiation particularly in the ileum, and the density of GLP-1 cells and production of satiety-related peptides (GLP-1 and PYY) in the neonatal period. However, it failed to induce any significant lasting changes on intestinal microbiota, enteropeptide secretion or eating behavior later in life. Overall, the results did not demonstrate any OS programming effect on satiety peptides secreted by L-cells or on food consumption, an observation which is a reassuring outlook from a human perspective.
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Affiliation(s)
- Gwenola Le Dréan
- Nantes Université, INRA, UMR1280, PhAN, F-44000 Nantes, France.
- IMAD, F-44000 Nantes, France.
- CRNH-Ouest, F-44000 Nantes, France.
| | - Anne-Lise Pocheron
- Nantes Université, INRA, UMR1280, PhAN, F-44000 Nantes, France
- IMAD, F-44000 Nantes, France
- CRNH-Ouest, F-44000 Nantes, France
| | - Hélène Billard
- Nantes Université, INRA, UMR1280, PhAN, F-44000 Nantes, France
- IMAD, F-44000 Nantes, France
- CRNH-Ouest, F-44000 Nantes, France
| | - Isabelle Grit
- Nantes Université, INRA, UMR1280, PhAN, F-44000 Nantes, France
- IMAD, F-44000 Nantes, France
- CRNH-Ouest, F-44000 Nantes, France
| | - Anthony Pagniez
- Nantes Université, INRA, UMR1280, PhAN, F-44000 Nantes, France
- IMAD, F-44000 Nantes, France
- CRNH-Ouest, F-44000 Nantes, France
| | - Patricia Parnet
- Nantes Université, INRA, UMR1280, PhAN, F-44000 Nantes, France
- IMAD, F-44000 Nantes, France
- CRNH-Ouest, F-44000 Nantes, France
| | - Eric Chappuis
- Olygose, parc Technologique des Rives de l'Oise, F 60280 Venette, France
| | - Malvyne Rolli-Derkinderen
- IMAD, F-44000 Nantes, France
- CRNH-Ouest, F-44000 Nantes, France
- Nantes Université, INSERM, UMR 1235, TENS, F-44000 Nantes, France
| | - Catherine Michel
- Nantes Université, INRA, UMR1280, PhAN, F-44000 Nantes, France
- IMAD, F-44000 Nantes, France
- CRNH-Ouest, F-44000 Nantes, France
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Panth N, Abbott KA, Dias CB, Wynne K, Garg ML. Differential effects of medium- and long-chain saturated fatty acids on blood lipid profile: a systematic review and meta-analysis. Am J Clin Nutr 2018; 108:675-687. [PMID: 30239550 DOI: 10.1093/ajcn/nqy167] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/29/2018] [Indexed: 12/23/2022] Open
Abstract
Background Medium-chain saturated fatty acids (MCFAs) may affect circulating lipids and lipoproteins differently than long-chain saturated fatty acids (LCSFAs), but the results from human intervention trials have been equivocal. Objective The aim of this study was to determine whether MCFAs and LCSFAs have differential impacts on blood lipids and lipoproteins. Design Five databases were searched (EMBASE, MEDLINE, CINAHL, Cochrane, and Scopus) until April 2018, and published clinical trials investigating the differential effects of dietary MCFAs and LCSFAs on blood lipids were included. Searches were limited to the English language and to studies with adults aged >18 y. Where possible, studies were pooled for meta-analysis using RevMan 5.2. The principle summary measure was the mean difference between groups calculated using the random-effects model. Results Eleven eligible crossover and 1 parallel trial were identified with a total of 299 participants [weighted mean ± SD age: 38 ± 3 y; weighted mean ± SD body mass index (kg/m2): 24 ± 2]. All studies were pooled for the meta-analysis. Diets enriched with MCFAs led to significantly higher high-density lipoprotein (HDL) cholesterol concentrations than diets enriched with LCSFAs (0.11 mmol/L; 95% CI: 0.07, 0.15 mmol/L) with no effect on triglyceride, low-density lipoprotein (LDL) cholesterol, and total cholesterol concentrations. Consumption of diets rich in MCFAs significantly increased apolipoprotein A-I (apoA-I) concentrations compared with diets rich in LCSFAs (0.08 g/L; 95% CI: 0.02, 0.14 g/L). There was no evidence of statistical heterogeneity for HDL cholesterol, apoA-I, and triglyceride concentrations; however, significant heterogeneity was observed for the total cholesterol (I2 = 49%) and LDL cholesterol analysis (I2 = 58%). Conclusion The findings of this research demonstrate a differential effect of MCFAs and LCSFAs on HDL cholesterol concentrations. Further investigations are warranted to elucidate the mechanism by which the lipid profile is altered. This trial was registered at www.crd.york.ac.uk/PROSPERO as CRD42017078277.
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Affiliation(s)
- Nisha Panth
- Nutraceuticals Research Program, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
| | - Kylie A Abbott
- Nutraceuticals Research Program, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
| | - Cintia B Dias
- Nutraceuticals Research Program, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
| | - Katie Wynne
- Department of Diabetes and Endocrinology, School of Medicine and Public Health, Hunter Medical Research Institute, University of Newcastle, New Lambton, New South Wales, Australia
| | - Manohar L Garg
- Nutraceuticals Research Program, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
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13
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Scarpellini E, Deloose E, Vos R, Francois I, Delcour JA, Broekaert WF, Verbeke K, Tack J. The effect of arabinoxylooligosaccharides on upper gastroduodenal motility and hunger ratings in humans. Neurogastroenterol Motil 2018; 30:e13306. [PMID: 29436142 DOI: 10.1111/nmo.13306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 01/09/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Prebiotics such as Arabinoxylooligosaccharides (AXOS) are non-digestible, fermentable food ingredients stimulating growth/activity of colonic bacteria with enhanced carbohydrates fermentation (CF) in humans. The migrating motor complex (MMC) of the gastrointestinal tract has been recently identified as an important hunger signal, but no data are available yet on the role of acute CF on MMC activity and related hunger ratings. Thus, we aimed to study the effect of acute AXOS CF on MMC and hunger in humans. METHODS A total of 13 healthy volunteers were randomized in a single-blind crossover placebo-controlled study where 9.4 g of AXOS or 10 g of maltodextrin and 1 g of unlabelled lactose ureide (LU) were given 12 hours prior to the study and, in the next morning, together with a pancake containing 500 mg of 13 C-LU. In 10 hours after the meal, 13 CO2 and hydrogen excretion were determined every 15 minutes while hunger/appetite ratings every 2 minutes through a VAS questionnaire. Five hours after the meal, antroduodenal motility was measured using HRM. KEY RESULTS AXOS significantly increased CF (158 ± 81 vs 840 ± 464 H2 ppm*minute, placebo vs AXOS, P < .05) without affecting the orocecal transit time (OCTT). AXOS had no significant effect on the occurrence, origin, and duration of phase III and on the total number, origin, and duration of phases I and II. Hunger and appetite scores prior and after phase III were not affected by AXOS. CONCLUSIONS AXOS acutely increases colonic fermentation, but this neither affects OCTT, activity of the MMC, nor interdigestive hunger scores in man.
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Affiliation(s)
- E Scarpellini
- Division of Gastroenterology, Department of Internal Medicine, TARGID, University Hospital Gasthuisberg, Leuven, Belgium
| | - E Deloose
- Division of Gastroenterology, Department of Internal Medicine, TARGID, University Hospital Gasthuisberg, Leuven, Belgium
| | - R Vos
- Division of Gastroenterology, Department of Internal Medicine, TARGID, University Hospital Gasthuisberg, Leuven, Belgium
| | - I Francois
- Laboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Catholic University of Leuven, Leuven, Belgium
| | - J A Delcour
- FUGEIA NV, Arenberg Science Park, Leuven, Belgium
| | | | - K Verbeke
- Division of Gastroenterology, Department of Internal Medicine, TARGID, University Hospital Gasthuisberg, Leuven, Belgium
| | - J Tack
- Division of Gastroenterology, Department of Internal Medicine, TARGID, University Hospital Gasthuisberg, Leuven, Belgium
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14
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Christiansen CB, Gabe MBN, Svendsen B, Dragsted LO, Rosenkilde MM, Holst JJ. The impact of short-chain fatty acids on GLP-1 and PYY secretion from the isolated perfused rat colon. Am J Physiol Gastrointest Liver Physiol 2018; 315:G53-G65. [PMID: 29494208 DOI: 10.1152/ajpgi.00346.2017] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The colonic epithelium harbors a large number of endocrine cells, but little is known about the endocrine functions of the colon. However, the high density of glucagon like peptide-1 (GLP-1)- and peptide-YY (PYY)-secreting L cells is of great interest because of the potential antidiabetic and antiobesity effects of GLP-1 and PYY. Short-chain fatty acids (SCFAs) produced by local bacterial fermentation are suggested to activate the colonic free fatty acid receptors FFAR2 (GPR43) and FFAR3 (GPR41), stimulating the colonic L cells. We used the isolated perfused rat colon as a model of colonic endocrine secretion and studied the effects of the predominant SCFAs formed: acetate, propionate, and butyrate. We show that luminal and especially vascular infusion of acetate and butyrate significantly increases colonic GLP-1 secretion, and to a minor extent also PYY secretion, but only after enhancement of intracellular cAMP. Propionate neither affected GLP-1 nor PYY secretion whether administered luminally or vascularly. A FFAR2- and FFAR3-specific agonist [( S)-2-(4-chlorophenyl)-3,3-dimethyl- N-(5-phenylthiazol-2-yl)butamide (CFMB)/ AR420626 ] had no effect on colonic GLP-1 output, and a FFAR3 antagonist ( AR399519 ) did not decrease the SCFA-induced GLP-1 response. However, the voltage-gated Ca2+-channel blocker nifedipine, the KATP-channel opener diazoxide, and the ATP synthesis inhibitor 2,4-dinitrophenol completely abolished the responses. FFAR2 receptor studies confirmed low-potent partial agonism of acetate, propionate, and butyrate, compared with CFMB, which is a full agonist with ~750-fold higher potency than the SCFAs. In conclusion, SCFAs may increase colonic GLP-1/PYY secretion, but FFAR2/FFAR3 do not seem to be involved. Rather, SCFAs are metabolized and appear to function as a colonocyte energy source. NEW & NOTEWORTHY By the use of in situ isolated perfused rat colon we show that short-chain fatty acids (SCFAs) primarily are used as a colonocyte energy source in the rat, subsequently triggering glucagon like peptide-1 (GLP-1) secretion independent of the free fatty acid receptors FFAR2 and FFAR3. Opposite many previous studies on SCFAs and FFAR2/FFAR3 and GLP-1 secretion, this experimental model allows investigation of the physiological interactions between luminal nutrients and secretion from cells whose function depend critically on their blood supply as well as nerve and paracrine interactions.
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Affiliation(s)
- Charlotte Bayer Christiansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen , Copenhagen , Denmark.,Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Maria Buur Nordskov Gabe
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Berit Svendsen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen , Copenhagen , Denmark.,Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Lars Ove Dragsted
- Department of Nutrition, Exercise and Sports, University of Copenhagen , Copenhagen , Denmark
| | - Mette Marie Rosenkilde
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Jens Juul Holst
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen , Copenhagen , Denmark.,Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
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15
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Goff HD, Repin N, Fabek H, El Khoury D, Gidley MJ. Dietary fibre for glycaemia control: Towards a mechanistic understanding. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.bcdf.2017.07.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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Potential Synergies of β-Hydroxybutyrate and Butyrate on the Modulation of Metabolism, Inflammation, Cognition, and General Health. J Nutr Metab 2018; 2018:7195760. [PMID: 29805804 PMCID: PMC5902005 DOI: 10.1155/2018/7195760] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/06/2018] [Accepted: 02/28/2018] [Indexed: 12/31/2022] Open
Abstract
The low-carbohydrate high-fat diet (LCHFD), also known as the ketogenic diet, has cycled in and out of popularity for decades as a therapeutic program to treat metabolic syndrome, weight mismanagement, and drug-resistant disorders as complex as epilepsy, cancer, dementia, and depression. Despite the benefits of this diet, health care professionals still question its safety due to the elevated serum ketones it induces and the limited dietary fiber. To compound the controversy, patient compliance with the program is poor due to the restrictive nature of the diet and symptoms related to energy deficit and gastrointestinal adversity during the introductory and energy substrate transition phase of the diet. The studies presented here demonstrate safety and efficacy of the diet including the scientific support and rationale for the administration of exogenous ketone bodies and ketone sources as a complement to the restrictive dietary protocol or as an alternative to the diet. This review also highlights the synergy provided by exogenous ketone, β-hydroxybutyrate (BHB), accompanied by the short chain fatty acid, butyrate (BA) in the context of cellular and physiological outcomes. More work is needed to unveil the molecular mechanisms by which this program provides health benefits.
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17
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Maher T, Clegg ME. Dietary lipids with potential to affect satiety: Mechanisms and evidence. Crit Rev Food Sci Nutr 2018; 59:1619-1644. [DOI: 10.1080/10408398.2017.1423277] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tyler Maher
- Oxford Brookes Centre for Nutrition and Health, Department of Sport, Health Sciences and Social Work, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, UK
| | - Miriam E. Clegg
- Oxford Brookes Centre for Nutrition and Health, Department of Sport, Health Sciences and Social Work, Faculty of Health and Life Sciences, Oxford Brookes University, Gipsy Lane, Oxford, UK
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18
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Opyd PM, Jurgoński A, Juśkiewicz J, Milala J, Zduńczyk Z, Król B. Nutritional and Health-Related Effects of a Diet Containing Apple Seed Meal in Rats: The Case of Amygdalin. Nutrients 2017; 9:nu9101091. [PMID: 28974035 PMCID: PMC5691708 DOI: 10.3390/nu9101091] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/13/2017] [Accepted: 09/29/2017] [Indexed: 12/14/2022] Open
Abstract
Apple pomace includes seeds that are rich in protein, fiber, and oil, which can be extracted from them. However, they can also contain a significant amount of toxigenic amygdalin. We hypothesized that amygdalin is a compound that significantly reduces the nutritional and health quality of defatted apple seeds. An experiment was conducted on rats that were distributed into three groups and fed with high-fructose diets. In the control (C) and amygdalin (AMG) groups, cellulose and casein were the source of dietary fiber and protein, respectively; in the apple seed meal (ASM) group, dietary fiber and protein originated from the endosperm of apple seeds, which were previously defatted and ground. A diet fed to the ASM group also contained 0.24% of amygdalin from the meal, whereas the AMG diet was supplemented with the same amount of synthetic amygdalin. After 14 days of experimental feeding, the body weight of rats was decreased in the ASM group. When compared to the C group, apparent protein digestibility and nitrogen retention were increased in the AMG group, while both were decreased in the ASM group. In the small intestine, mucosal maltase activity was decreased in the AMG and ASM groups, whereas lactase activity was only decreased by dietary amygdalin. The caecal SCFA pool and butyrate concentration were significantly increased in the ASM group compared to the other groups. Moreover, the ASM diet increased plasma concentration of high density lipoprotein (HDL) cholesterol and plasma antioxidant capacity of water-soluble substances (ACW). It also decreased the liver content of thiobarbituric acid-reactive substances (TBARS). In contrast, dietary amygdalin did not affect these indices. Dietary supplementation with apple seed meal can exert beneficial effects on the intestinal tract, blood lipid profile and antioxidant status of rats. In most cases, these effects are not limited by the presence of amygdalin. However, the nutritional value of protein from apple seed meal is relatively low.
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Affiliation(s)
- Paulina M Opyd
- Department of Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Str., 10-748 Olsztyn, Poland.
| | - Adam Jurgoński
- Department of Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Str., 10-748 Olsztyn, Poland.
| | - Jerzy Juśkiewicz
- Department of Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Str., 10-748 Olsztyn, Poland.
| | - Joanna Milala
- Institute of Food Technology and Analysis, Łódź University of Technology, Stefanowskiego 4/10 Str., 90-924 Łódź, Poland.
| | - Zenon Zduńczyk
- Department of Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Str., 10-748 Olsztyn, Poland.
| | - Bogusław Król
- Institute of Food Technology and Analysis, Łódź University of Technology, Stefanowskiego 4/10 Str., 90-924 Łódź, Poland.
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19
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Davis SC, Yadav JS, Barrow SD, Robertson BK. Gut microbiome diversity influenced more by the Westernized dietary regime than the body mass index as assessed using effect size statistic. Microbiologyopen 2017; 6. [PMID: 28677210 PMCID: PMC5552927 DOI: 10.1002/mbo3.476] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 02/13/2017] [Accepted: 02/22/2017] [Indexed: 12/19/2022] Open
Abstract
Human gut microbiome dysbiosis has been associated with the onset of metabolic diseases and disorders. However, the critical factors leading to dysbiosis are poorly understood. In this study, we provide increasing evidence of the association of diet type and body mass index (BMI) and how they relatively influence the taxonomic structure of the gut microbiota with respect to the causation of gut microbiome dysbiosis. The study included randomly selected Alabama residents (n = 81), including females (n = 45) and males (n = 36). The demographics data included age (33 ± 13.3 years), height (1.7 ± 0.11 meters), and weight (82.3 ± 20.6 kg). The mean BMI was 28.3 ± 7.01, equating to an overweight BMI category. A cross-sectional case-control design encompassing the newly recognized effect size approach to bioinformatics analysis was used to analyze data from donated stool samples and accompanying nutrition surveys. We investigated the microbiome variations in the Bacteroidetes-Firmicutes ratio relative to BMI, food categories, and dietary groups at stratified abundance percentages of <20%, 20%, 30%, 40%, 50%, 60%, and ≥70%. We further investigated variation in the Firmicutes and Bacteroidetes phyla composition (at the genus and species level) in relation to BMI, food categories, and dietary groups (Westernized or healthy). The Pearson Correlation coefficient as an indication of effect size across Alpha diversity indices was used to test the hypothesis (H0 ): increased BMI has greater effect on taxonomic diversity than Westernized diet type, (Ha ): increased BMI does not have a greater effect on taxonomic diversity than Westernized diet type. In conclusion, we rejected the (H0 ) as our results demonstrated that Westernized diet type had an effect size of 0.22 posing a greater impact upon the gut microbiota diversity than an increased BMI with an effect size of 0.16. This implied Westernized diet as a critical factor in causing dysbiosis as compared to an overweight or obese body mass index.
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Affiliation(s)
- Shannon C Davis
- Microbiology Program, Department of Biological Sciences, College of Science, Technology, Engineering and Mathematics, Alabama State University, Montgomery, AL, USA
| | - Jagjit S Yadav
- Microbial Pathogenesis and Immunotoxicology Laboratory, Department of Environmental Health, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Stephanie D Barrow
- Microbiology Program, Department of Biological Sciences, College of Science, Technology, Engineering and Mathematics, Alabama State University, Montgomery, AL, USA
| | - Boakai K Robertson
- Microbiology Program, Department of Biological Sciences, College of Science, Technology, Engineering and Mathematics, Alabama State University, Montgomery, AL, USA
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20
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Shi L, Brunius C, Lindelöf M, Shameh SA, Wu H, Lee I, Landberg R, Moazzami AA. Targeted metabolomics reveals differences in the extended postprandial plasma metabolome of healthy subjects after intake of whole-grain rye porridges versus refined wheat bread. Mol Nutr Food Res 2017; 61. [PMID: 28035736 DOI: 10.1002/mnfr.201600924] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/21/2016] [Accepted: 12/23/2016] [Indexed: 12/27/2022]
Abstract
SCOPE We previously found that whole-grain (WG) rye porridges suppressed appetite and improved glucose metabolism. This study aimed to investigate potential plasma metabolites that may be related to differences in those appetite and glucose responses. METHODS AND RESULTS Twenty-one health subjects consumed six isocaloric breakfasts in a randomized cross-over study. Plain WG rye porridges (40 and 55 g), rye porridge enriched with different inulin: gluten proportions (9:3 g; 6:6 g; 3:9 g), and a 55 g refined wheat bread (control) were served as part of complete breakfast, followed by a standardized lunch. NMR metabolomics assessed 36 plasma metabolites and short chain fatty acids were measured by GC-MS from baseline up to 8 h. Pre-lunch plasma essential amino acids reflected protein composition and post-lunch plasma short chain fatty acids varied with fiber content in breakfasts. No correlations were observed between measured metabolites and glucose, insulin, or appetite responses. CONCLUSIONS Differences in protein and fiber contents in breakfasts altered postprandial plasma amino acids and short chain fatty acids, respectively, but were unrelated to appetite and glucose responses. Further studies are warrant to identify the underlying mechanisms for the beneficial effects on appetite and second meal glucose responses after rye-based foods.
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Affiliation(s)
- Lin Shi
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Food and Nutrition Division, Department of Biology and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Carl Brunius
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Food and Nutrition Division, Department of Biology and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Magnus Lindelöf
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Souad Abou Shameh
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Huaxing Wu
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Food and Nutrition Division, Department of Biology and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Isabella Lee
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Rikard Landberg
- Department of Food Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Unit of Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Food and Nutrition Division, Department of Biology and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Ali A Moazzami
- Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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21
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Shevkani K, Singh N, Bajaj R, Kaur A. Wheat starch production, structure, functionality and applications-a review. Int J Food Sci Technol 2016. [DOI: 10.1111/ijfs.13266] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Khetan Shevkani
- Department of Food Science and Technology; Guru Nanak Dev University; Amritsar 143005 India
- Centre for Applied Agriculture; Central University of Punjab; Bathinda 151001 India
| | - Narpinder Singh
- Department of Food Science and Technology; Guru Nanak Dev University; Amritsar 143005 India
| | - Ritika Bajaj
- Department of Food Science and Technology; Guru Nanak Dev University; Amritsar 143005 India
| | - Amritpal Kaur
- Department of Food Science and Technology; Guru Nanak Dev University; Amritsar 143005 India
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22
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Scarpellini E, Deloose E, Vos R, Francois IEJA, Delcour JA, Broekaert WF, Verbeke K, Tack J. The effect of arabinoxylooligosaccharides on gastric sensory-motor function and nutrient tolerance in man. Neurogastroenterol Motil 2016; 28:1194-203. [PMID: 27206549 DOI: 10.1111/nmo.12819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 02/10/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Intestinal microbiota regulates gastrointestinal sensory-motor function. Prebiotics such as arabinoxylan-oligosaccharide (AXOS) are non-digestible, fermentable food ingredients beneficially affecting intestinal microbiota, colon activity, and improving human health. We wanted to investigate whether acute AXOS or maltodextrin (placebo) administration may alter gastric sensitivity (GS), accommodation (GA), nutrient tolerance (NT) in man. METHODS Thirteen HV (6 M, 32.2 ± 1.8 years; BMI 22.3 ± 0.2) underwent two 48 h treatment periods with oral 4 × 9.4 g AXOS or 4 × 10 g maltodextrin (at least 1 week wash-out) for gastric barostat assessment of GS, gastric compliance (GC), GA to a liquid test meal, on day 1, and NT drink test, on day 2. Oro-cecal transit-time (OCTT), colonic fermentation (CF) were assessed simultaneously with (13) C-lactose ureide, H2 breath tests. KEY RESULTS Arabinoxylan-oligosaccharide significantly increased CF on day 1 and 2 (565 ± 272 vs 100 ± 24, 365 ± 66 vs 281 ± 25 H2 ppm/min, AXOS vs maltodextrin, both p < 0.05), not the OCTT. AXOS did not alter GC, sensitivity before and after the meal. Gastric accommodation was not significantly influenced by AXOS (volume increment: 171 ± 33 vs 130 ± 28 mL, AXOS vs maltodextrin, p = NS). On day 1, AXOS fermentation was associated with significantly higher postprandial bloating scores (960 ± 235 vs 396 ± 138 mm*min, AXOS vs maltodextrin, p < 0.05). On day 2, AXOS did not affect maximal NT (946 ± 102 vs 894 ± 97 mL, AXOS vs maltodextrin, p = NS), increased the bloating score (1236 ± 339 vs 675 ± 197 mm*min, AXOS vs maltodextrin, p < 0.05). CONCLUSIONS & INFERENCES Acute AXOS administration, associated with increased CF, does not affect GA, is not associated with increased meal-induced satiety or perception scores.
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Affiliation(s)
- E Scarpellini
- TARGID, Department of Internal Medicine, Division of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
| | - E Deloose
- TARGID, Department of Internal Medicine, Division of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
| | - R Vos
- TARGID, Department of Internal Medicine, Division of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
| | - I E J A Francois
- Laboratory of Food Chemistry and Biochemistry & Leuven Food Science and Nutrition Research Centre (LFoRCe), Catholic University of Leuven, Leuven, Belgium
| | - J A Delcour
- FUGEIA NV, Arenberg Science Park, Leuven, Belgium
| | | | - K Verbeke
- TARGID, Department of Internal Medicine, Division of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
| | - J Tack
- TARGID, Department of Internal Medicine, Division of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
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23
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Carreiro AL, Dhillon J, Gordon S, Jacobs AG, Higgins KA, McArthur BM, Redan BW, Rivera RL, Schmidt LR, Mattes RD. The Macronutrients, Appetite, and Energy Intake. Annu Rev Nutr 2016; 36:73-103. [PMID: 27431364 PMCID: PMC4960974 DOI: 10.1146/annurev-nutr-121415-112624] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Each of the macronutrients-carbohydrate, protein, and fat-has a unique set of properties that influences health, but all are a source of energy. The optimal balance of their contribution to the diet has been a long-standing matter of debate. Over the past half century, thinking has progressed regarding the mechanisms by which each macronutrient may contribute to energy balance. At the beginning of this period, metabolic signals that initiated eating events (i.e., determined eating frequency) were emphasized. This was followed by an orientation to gut endocrine signals that purportedly modulate the size of eating events (i.e., determined portion size). Most recently, research attention has been directed to the brain, where the reward signals elicited by the macronutrients are viewed as potentially problematic (e.g., contribute to disordered eating). At this point, the predictive power of the macronutrients for energy intake remains limited.
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Affiliation(s)
- Alicia L Carreiro
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
| | - Jaapna Dhillon
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
| | - Susannah Gordon
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
| | - Ashley G Jacobs
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
| | - Kelly A Higgins
- Department of Food Science, Purdue University, West Lafayette, IN 47907
| | | | - Benjamin W Redan
- Department of Food Science, Purdue University, West Lafayette, IN 47907
| | - Rebecca L Rivera
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
| | - Leigh R Schmidt
- Department of Food Science, Purdue University, West Lafayette, IN 47907
| | - Richard D Mattes
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
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Safety and efficacy of coffee enriched with inulin and dextrin on satiety and hunger in normal volunteers. Nutrition 2016; 32:754-60. [DOI: 10.1016/j.nut.2015.12.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 12/27/2015] [Accepted: 12/28/2015] [Indexed: 01/02/2023]
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Olli K, Saarinen MT, Forssten SD, Madetoja M, Herzig KH, Tiihonen K. Independent and Combined Effects of Lactitol, Polydextrose, and Bacteroides thetaiotaomicron on Postprandial Metabolism and Body Weight in Rats Fed a High-Fat Diet. Front Nutr 2016; 3:15. [PMID: 27376068 PMCID: PMC4896914 DOI: 10.3389/fnut.2016.00015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/25/2016] [Indexed: 12/19/2022] Open
Abstract
Obesity is related to the consumption of energy-dense foods in addition to changes in the microbiome where a higher abundance of gut Bacteroidetes can be found in lean subjects or after weight loss. Lactitol, a sweet-tasting sugar alcohol, is a common sugar-replacement in foods. Polydextrose (PDX), a highly branched glucose polymer, is known to reduce energy intake. Here, we test if the combined effects of lactitol or PDX in combination with Bacteroides species will have a beneficial metabolic response in rats fed a high-fat (HF) diet. A total of 175 male Wistar rats were fed either a LF or HF diet. Bacteroides thetaiotaomicron (1010 bacteria/animal/day) was orally administered with or without lactitol (1.6−2 g/animal/day) or PDX (2 g/animal/day) for 8 days. Postprandial blood samples, cecal digesta, and feces were collected on the last day. Measurements included: body weight, feed consumption, cecal short-chain fatty acids, fecal dry matter and heat value, blood glucose, insulin, triglyceride, and satiety hormone concentrations. Lactitol and PDX decreased the mean body weight when administered with B. thetaiotaomicron or when lactitol was administered alone. Levels of postprandial plasma triglycerides declined with lactitol and PDX when administered with B. thetaiotaomicron. For intestinal hormone release, lactitol – alone or with B. thetaiotaomicron – increased the release of gastrointestinal peptide tyrosine tyrosine (PYY) as well as the area under the curve (AUC) measured for PYY (0–8 h). In addition, levels of insulin AUC (0–8 h) decreased in the lactitol and PDX-supplemented groups. Lactitol and PDX may both provide additional means to regulate postprandial metabolism and weight management, whereas the addition of B. thetaiotaomicron in the tested doses had only minor effects on the measured parameters.
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Affiliation(s)
- Kaisa Olli
- DuPont Nutrition and Health, Global Health & Nutrition Science , Kantvik , Finland
| | - Markku T Saarinen
- DuPont Nutrition and Health, Global Health & Nutrition Science , Kantvik , Finland
| | - Sofia D Forssten
- DuPont Nutrition and Health, Global Health & Nutrition Science , Kantvik , Finland
| | | | - Karl-Heinz Herzig
- Medical Research Center Oulu, Institute of Biomedicine and Biocenter of Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland; Department of Gastroenterology and Metabolism, Poznan University of Medical Sciences, Poznan, Poland
| | - Kirsti Tiihonen
- DuPont Nutrition and Health, Global Health & Nutrition Science , Kantvik , Finland
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Nutritional Signaling via Free Fatty Acid Receptors. Int J Mol Sci 2016; 17:450. [PMID: 27023530 PMCID: PMC4848906 DOI: 10.3390/ijms17040450] [Citation(s) in RCA: 139] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/07/2016] [Accepted: 03/17/2016] [Indexed: 12/30/2022] Open
Abstract
Excess energy is stored primarily as triglycerides, which are mobilized when demand for energy arises. Dysfunction of energy balance by excess food intake leads to metabolic diseases, such as obesity and diabetes. Free fatty acids (FFAs) provided by dietary fat are not only important nutrients, but also contribute key physiological functions via FFA receptor (FFAR)-mediated signaling molecules, which depend on FFAs' carbon chain length and the ligand specificity of the receptors. Functional analyses have revealed that FFARs are critical for metabolic functions, such as peptide hormone secretion and inflammation, and contribute to energy homeostasis. In particular, recent studies have shown that the administration of selective agonists of G protein-coupled receptor (GPR) 40 and GPR120 improved glucose metabolism and systemic metabolic disorders. Furthermore, the anti-inflammation and energy metabolism effects of short chain FAs have been linked to the activation of GPR41 and GPR43. In this review, we summarize recent progress in research on FFAs and their physiological roles in the regulation of energy metabolism.
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Darzi J, Frost GS, Swann JR, Costabile A, Robertson MD. l-rhamnose as a source of colonic propionate inhibits insulin secretion but does not influence measures of appetite or food intake. Appetite 2016; 98:142-9. [DOI: 10.1016/j.appet.2015.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 12/04/2015] [Accepted: 12/14/2015] [Indexed: 12/14/2022]
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Martins IJ. Anti-Aging Genes Improve Appetite Regulation and Reverse Cell Senescence and Apoptosis in Global Populations. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/aar.2016.51002] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Eight-day consumption of inulin added to a yogurt breakfast lowers postprandial appetite ratings but not energy intakes in young healthy females: a randomised controlled trial. Br J Nutr 2015; 115:262-70. [DOI: 10.1017/s0007114515004432] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
AbstractIncreasing feelings of satiety may reduce appetite and energy intake. The role of inulin consumption in impacting satiety is unclear. A randomised double-blind controlled crossover trial aimed to determine the effects of inulin+yogurt on satiety after 1 and 8-d consumption. The preload breakfast included 100 g vanilla yogurt with (yogurt-inulin (YI)) and without (yogurt-control (YC)) 6 g inulin. A total of nineteen healthy females (22·8 (sd 2·7) years) with non-restrained eating behaviour and taking hormonal contraceptives participated in the study. Day 1 and 8 visual analogue scale (VAS) ratings of Hunger, Fullness, Desire to Eat and Prospective Food Consumption (PFC) were collected at fasting and every 30 min for 180 min. Energy intake was calculated from a weighed ad libitum lunch and remainder of day food records. Total AUC was calculated for each VAS. Day 1 (VAS only) and 8 (VAS and energy intakes) data were compared between YI and YC using ANCOVA, and ANOVA was used to compare energy intakes on Day 1. There were no significant differences between Day 1 YI and YC AUC appetite ratings or energy intakes. However, 8-d consumption of YI v. YC was associated with lower Desire to Eat and PFC ratings but similar lunch and total day energy intakes. Therefore, the addition of 6 g inulin to a commercially available yogurt affected feelings of appetite, but not energy intake, after repeated consumption. These results suggest that inulin may be a suitable ingredient to increase dietary fibre consumption, with potential to impact appetite.
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Influence of intestinal microbiota on body weight gain: a narrative review of the literature. Obes Surg 2015; 25:346-53. [PMID: 25511750 DOI: 10.1007/s11695-014-1525-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In recent decades, experimental and clinical studies have associated the development of obesity with the composition of the gut microbiota. Mechanisms potentially involved in the contribution of gut microbiota to body weight gain include changes in energy extraction from the diet and the modulation of lipid metabolism, endocrine functions, and the immune system. The host's specific genetic heritage, the type and amount of food intake, chronic inflammation, reduced body energy expenditure, and exposure to obesogenic pollutants are also potential contributing factors. The pathophysiological processes involved in the relationship between gut microbiota and obesity are not fully understood, and further studies are needed to establish whether differences in gut bacterial diversity between obese and normal body weight individuals are the cause or a consequence of obesity.
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Chater PI, Wilcox MD, Pearson JP, Brownlee IA. The impact of dietary fibres on the physiological processes governing small intestinal digestive processes. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.bcdf.2015.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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The Influence of the Gut Microbiome on Obesity, Metabolic Syndrome and Gastrointestinal Disease. Clin Transl Gastroenterol 2015; 6:e91. [PMID: 26087059 PMCID: PMC4816244 DOI: 10.1038/ctg.2015.16] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 04/13/2015] [Indexed: 12/11/2022] Open
Abstract
There is a fine balance in the mutual relationship between the intestinal microbiota and its mammalian host. It is thought that disruptions in this fine balance contribute/account for the pathogenesis of many diseases. Recently, the significance of the relationship between gut microbiota and its mammalian host in the pathogenesis of obesity and the metabolic syndrome has been demonstrated. Emerging data has linked intestinal dysbiosis to several gastrointestinal diseases including inflammatory bowel disease, irritable bowel syndrome, nonalcoholic fatty liver disease, and gastrointestinal malignancy. This article is intended to review the role of gut microbiota maintenance/alterations of gut microbiota as a significant factor as a significant factor discriminating between health and common diseases. Based on current available data, the role of microbial manipulation in disease management remains to be further defined and a focus for further clinical investigation.
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The multifactorial interplay of diet, the microbiome and appetite control: current knowledge and future challenges. Proc Nutr Soc 2015; 74:235-44. [DOI: 10.1017/s0029665114001670] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The recent availability of high-throughput nucleic acid sequencing technologies has rapidly advanced approaches to analysing the role of the gut microbiome in governance of human health, including gut health, and also metabolic, cardiovascular and mental health,inter alia. Recent scientific studies suggest that energy intake (EI) perturbations at the population level cannot account for the current obesity epidemic, and significant work is investigating the potential role of the microbiome, and in particular its metabolic products, notably SCFA, predominantly acetate, propionate and butyrate, the last of which is an energy source for the epithelium of the large intestine. The energy yield from dietary residues may be a significant factor influencing energy balance. This review posits that the contribution towards EI is governed by EI diet composition (not just fibre), the composition of the microbiome and by the levels of physical activity. Furthermore, we hypothesise that these factors do not exist in a steady state, but rather are dynamic, with both short- and medium-term effects on appetite regulation. We suggest that the existing modelling strategies for bacterial dynamics, specifically for growth in chemostat culture, are of utility in understanding the dynamic interplay of diet, activity and microbiomic organisation. Such approaches may be informative in optimising the application of dietary and microbial therapy to promote health.
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Sun H, Tan C, Wei H, Zou Y, Long G, Ao J, Xue H, Jiang S, Peng J. Effects of different amounts of konjac flour inclusion in gestation diets on physio-chemical properties of diets, postprandial satiety in pregnant sows, lactation feed intake of sows and piglet performance. Anim Reprod Sci 2015; 152:55-64. [DOI: 10.1016/j.anireprosci.2014.11.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 11/02/2014] [Accepted: 11/05/2014] [Indexed: 10/24/2022]
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Bussolo de Souza C, Roeselers G, Troost F, Jonkers D, Koenen M, Venema K. Prebiotic effects of cassava bagasse in TNO's in vitro model of the colon in lean versus obese microbiota. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.09.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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Abstract
A large body of clinical evidence suggests that the consumption of 3 g or more per d of β-glucan from oats or barley, as part of a diet low in saturated fat and cholesterol, may reduce the risk of CHD. The unique chemical and physical properties of oats and physiological responses to oat consumption contribute to their demonstrated health benefits; other health attributes are still under evaluation. Many of these benefits, such as those associated with a reduced risk of CVD, are codified in health claims by several regulatory agencies, such as the Food and Drug Administration in the USA and the European Food Safety Authority in Europe. Despite these oat–health relationships, an apparent decline in agricultural production, the presence of an array of plant pathogens, and dynamics of climatic conditions may preclude the availability and subsequent consumption of this commodity worldwide. Therefore, it is incumbent on scientists from multiple disciplines to advance research in a spectrum of arenas, including physico-chemical properties of oats, the impact of oats on an array of non-communicable diseases and human microbiome, agricultural practices and environments, and processing technologies that contribute to global food policies.
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Effects of alginate and resistant starch on feeding patterns, behaviour and performance in ad libitum-fed growing pigs. Animal 2014; 8:1917-27. [PMID: 25154351 DOI: 10.1017/s1751731114001840] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
This study assessed the long-term effects of feeding diets containing either a gelling fibre (alginate (ALG)), or a fermentable fibre (resistant starch (RS)), or both, on feeding patterns, behaviour and growth performance of growing pigs fed ad libitum for 12 weeks. The experiment was set up as a 2×2 factorial arrangement: inclusion of ALG (yes or no) and inclusion of RS (yes or no) in the control diet, resulting in four dietary treatments, that is, ALG-RS- (control), ALG+RS-, ALG-RS+, and ALG+RS+. Both ALG and RS were exchanged for pregelatinized potato starch. A total of 240 pigs in 40 pens were used. From all visits to an electronic feeding station, feed intake and detailed feeding patterns were calculated. Apparent total tract digestibility of energy, dry matter (DM), and CP was determined in week 6. Pigs' postures and behaviours were scored from live observations in weeks 7 and 12. Dietary treatments did not affect final BW and average daily gain (ADG). ALG reduced energy and DM digestibility (P<0.01). Moreover, ALG increased average daily DM intake, and reduced backfat thickness and carcass gain : digestible energy (DE) intake (P<0.05). RS increased feed intake per meal, meal duration (P<0.05) and inter-meal intervals (P=0.05), and reduced the number of meals per day (P<0.01), but did not affect daily DM intake. Moreover, RS reduced energy, DM and CP digestibility (P<0.01). Average daily DE intake was reduced (P<0.05), and gain : DE intake tended to be increased (P=0.07), whereas carcass gain : DE intake was not affected by RS. In week 12, ALG+RS- increased standing and walking, aggressive, feeder-directed, and drinking behaviours compared with ALG+RS+ (ALG×RS interaction, P<0.05), with ALG-RS- and ALG-RS+ in between. No other ALG×RS interactions were found. In conclusion, pigs fed ALG compensated for the reduced dietary DE content by increasing their feed intake, achieving similar DE intake and ADG as control pigs. Backfat thickness and carcass efficiency were reduced in pigs fed ALG, which also showed increased physical activity. Pigs fed RS changed feeding patterns, but did not increase their feed intake. Despite a lower DE intake, pigs fed RS achieved similar ADG as control pigs by increasing efficiency in DE use. This indicates that the energy utilization of RS in pigs with ad libitum access to feed is close to that of enzymatically digestible starch.
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Adam CL, Williams PA, Dalby MJ, Garden K, Thomson LM, Richardson AJ, Gratz SW, Ross AW. Different types of soluble fermentable dietary fibre decrease food intake, body weight gain and adiposity in young adult male rats. Nutr Metab (Lond) 2014; 11:36. [PMID: 25152765 PMCID: PMC4141268 DOI: 10.1186/1743-7075-11-36] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 07/30/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Dietary fibre-induced satiety offers a physiological approach to body weight regulation, yet there is lack of scientific evidence. This experiment quantified food intake, body weight and body composition responses to three different soluble fermentable dietary fibres in an animal model and explored underlying mechanisms of satiety signalling and hindgut fermentation. METHODS Young adult male rats were fed ad libitum purified control diet (CONT) containing 5% w/w cellulose (insoluble fibre), or diet containing 10% w/w cellulose (CELL), fructo-oligosaccharide (FOS), oat beta-glucan (GLUC) or apple pectin (PECT) (4 weeks; n = 10/group). Food intake, body weight, and body composition (MRI) were recorded, final blood samples analysed for gut satiety hormones, hindgut contents for fermentation products (including short-chain fatty acids, SCFA) and intestinal tissues for SCFA receptor gene expression. RESULTS GLUC, FOS and PECT groups had, respectively, 10% (P < 0.05), 17% (P < 0.001) and 19% (P < 0.001) lower food intake and 37% (P < 0.01), 37% (P < 0.01) and 45% (P < 0.001) lower body weight gain than CONT during the four-week experiment. At the end they had 26% (P < 0.05), 35% (P < 0.01) and 42% (P < 0.001) less total body fat, respectively, while plasma total glucagon-like peptide-1 (GLP-1) was 2.2-, 3.2- and 2.6-fold higher (P < 0.001) and peptide tyrosine tyrosine (PYY) was 2.3-, 3.1- and 3.0-fold higher (P < 0.001). There were no differences in these parameters between CONT and CELL. Compared with CONT and CELL, caecal concentrations of fermentation products increased 1.4- to 2.2-fold in GLUC, FOS and PECT (P < 0.05) and colonic concentrations increased 1.9- to 2.5-fold in GLUC and FOS (P < 0.05), with no consistent changes in SCFA receptor gene expression detected. CONCLUSIONS This provides animal model evidence that sustained intake of three different soluble dietary fibres decreases food intake, weight gain and adiposity, increases circulating satiety hormones GLP-1 and PYY, and increases hindgut fermentation. The presence of soluble fermentable fibre appears to be more important than its source. The results suggest that dietary fibre-induced satiety is worthy of further investigation towards natural body weight regulation in humans.
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Affiliation(s)
- Clare L Adam
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Patricia A Williams
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Matthew J Dalby
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Karen Garden
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Lynn M Thomson
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Anthony J Richardson
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Silvia W Gratz
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
| | - Alexander W Ross
- Rowett Institute of Nutrition and Health, University of Aberdeen, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
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Clarke G, Stilling RM, Kennedy PJ, Stanton C, Cryan JF, Dinan TG. Minireview: Gut microbiota: the neglected endocrine organ. Mol Endocrinol 2014; 28:1221-38. [PMID: 24892638 DOI: 10.1210/me.2014-1108] [Citation(s) in RCA: 701] [Impact Index Per Article: 70.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The concept that the gut microbiota serves as a virtual endocrine organ arises from a number of important observations. Evidence for a direct role arises from its metabolic capacity to produce and regulate multiple compounds that reach the circulation and act to influence the function of distal organs and systems. For example, metabolism of carbohydrates results in the production of short-chain fatty acids, such as butyrate and propionate, which provide an important source of nutrients as well as regulatory control of the host digestive system. This influence over host metabolism is also seen in the ability of the prebiotic inulin to influence production of relevant hormones such as glucagon-like peptide-1, peptide YY, ghrelin, and leptin. Moreover, the probiotic Lactobacillus rhamnosus PL60, which produces conjugated linoleic acid, has been shown to reduce body-weight gain and white adipose tissue without effects on food intake. Manipulating the microbial composition of the gastrointestinal tract modulates plasma concentrations of tryptophan, an essential amino acid and precursor to serotonin, a key neurotransmitter within both the enteric and central nervous systems. Indirectly and through as yet unknown mechanisms, the gut microbiota exerts control over the hypothalamic-pituitary-adrenal axis. This is clear from studies on animals raised in a germ-free environment, who show exaggerated responses to psychological stress, which normalizes after monocolonization by certain bacterial species including Bifidobacterium infantis. It is tempting to speculate that therapeutic targeting of the gut microbiota may be useful in treating stress-related disorders and metabolic diseases.
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Affiliation(s)
- Gerard Clarke
- Alimentary Pharmabiotic Centre (G.C., R.M.S., P.J.K., C.S., J.F.C., T.G.D.) and Departments of Psychiatry (G.C., C.S., T.G.D.) and Anatomy and Neuroscience (J.F.C.), University College Cork, Cork, Ireland; and Teagasc (C.S.), Moorepark, Fermoy, Cork, Ireland
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Rebello CJ, Greenway FL, Finley JW. A review of the nutritional value of legumes and their effects on obesity and its related co-morbidities. Obes Rev 2014; 15:392-407. [PMID: 24433379 DOI: 10.1111/obr.12144] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 12/12/2013] [Accepted: 12/13/2013] [Indexed: 01/11/2023]
Abstract
Since the 1970s, the proportion of overweight and obese people in the United States has grown at an alarming rate. An awareness of the consequences of obesity on the health and well-being of individuals is evident in the plethora of strategic plans at the local and national levels, most of which have largely fallen short of their goals. If interventions continue to be unsuccessful, it is estimated that approximately three of four Americans will be overweight or obese by 2020. Prevention of excess weight gain can be accomplished with relatively small changes in lifestyle behaviours to control body weight. Small sustainable changes are perhaps better than efforts to achieve larger changes that cannot be sustained. Legumes can be a valuable food by which the needs of the undernourished or under-served populations could be met. They can be incorporated into meat products, such as sausages and burgers, to lower the energy density of these foods while providing important nutrients. Replacing energy-dense foods with legumes has been shown to have beneficial effects on the prevention and management of obesity and related disorders, such as cardiovascular disease, diabetes and the metabolic syndrome. This review explores the nutritional value and obesity-related health benefits of legume consumption while focusing on pulses.
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Affiliation(s)
- C J Rebello
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA, USA; Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
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Frost G, Sleeth ML, Sahuri-Arisoylu M, Lizarbe B, Cerdan S, Brody L, Anastasovska J, Ghourab S, Hankir M, Zhang S, Carling D, Swann JR, Gibson G, Viardot A, Morrison D, Louise Thomas E, Bell JD. The short-chain fatty acid acetate reduces appetite via a central homeostatic mechanism. Nat Commun 2014; 5:3611. [PMID: 24781306 PMCID: PMC4015327 DOI: 10.1038/ncomms4611] [Citation(s) in RCA: 1033] [Impact Index Per Article: 103.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 03/11/2014] [Indexed: 02/07/2023] Open
Abstract
Increased intake of dietary carbohydrate that is fermented in the colon by the microbiota has been reported to decrease body weight, although the mechanism remains unclear. Here we use in vivo(11)C-acetate and PET-CT scanning to show that colonic acetate crosses the blood-brain barrier and is taken up by the brain. Intraperitoneal acetate results in appetite suppression and hypothalamic neuronal activation patterning. We also show that acetate administration is associated with activation of acetyl-CoA carboxylase and changes in the expression profiles of regulatory neuropeptides that favour appetite suppression. Furthermore, we demonstrate through (13)C high-resolution magic-angle-spinning that (13)C acetate from fermentation of (13)C-labelled carbohydrate in the colon increases hypothalamic (13)C acetate above baseline levels. Hypothalamic (13)C acetate regionally increases the (13)C labelling of the glutamate-glutamine and GABA neuroglial cycles, with hypothalamic (13)C lactate reaching higher levels than the 'remaining brain'. These observations suggest that acetate has a direct role in central appetite regulation.
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Affiliation(s)
- Gary Frost
- Faculty of Medicine, Nutrition and Dietetic Research Group, Division of Diabetes, Endocrinology and Metabolism, Department of Investigative Medicine, Imperial College London, Hammersmith Campus, London W12 0NN, UK
| | - Michelle L. Sleeth
- Faculty of Medicine, Nutrition and Dietetic Research Group, Division of Diabetes, Endocrinology and Metabolism, Department of Investigative Medicine, Imperial College London, Hammersmith Campus, London W12 0NN, UK
| | - Meliz Sahuri-Arisoylu
- Metabolic and Molecular Imaging Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - Blanca Lizarbe
- Laboratory for Imaging and Spectroscopy by Magnetic Resonance (LISMAR), Instituto de Investigaciones Biomédicas de Madrid ‘Alberto Sols’ C.S.I.C./U.A.M., Madrid 28029, Spain
| | - Sebastian Cerdan
- Laboratory for Imaging and Spectroscopy by Magnetic Resonance (LISMAR), Instituto de Investigaciones Biomédicas de Madrid ‘Alberto Sols’ C.S.I.C./U.A.M., Madrid 28029, Spain
| | - Leigh Brody
- Metabolic and Molecular Imaging Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - Jelena Anastasovska
- Metabolic and Molecular Imaging Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - Samar Ghourab
- Metabolic and Molecular Imaging Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - Mohammed Hankir
- Metabolic and Molecular Imaging Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - Shuai Zhang
- Cellular Stress Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - David Carling
- Cellular Stress Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - Jonathan R. Swann
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK
| | - Glenn Gibson
- Food Microbial Sciences Unit, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK
| | - Alexander Viardot
- Faculty of Medicine, Nutrition and Dietetic Research Group, Division of Diabetes, Endocrinology and Metabolism, Department of Investigative Medicine, Imperial College London, Hammersmith Campus, London W12 0NN, UK
| | - Douglas Morrison
- Stable Isotope Biochemistry Laboratory, Scottish Universities Environmental Research Centre, Rankine Avenue, Glasgow G75 0QF, UK
| | - E Louise Thomas
- Metabolic and Molecular Imaging Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
| | - Jimmy D. Bell
- Metabolic and Molecular Imaging Group, MRC Clinical Science Centre, Imperial College London, London W12 0NN, UK
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Forsberg T, Åman P, Landberg R. Effects of whole grain rye crisp bread for breakfast on appetite and energy intake in a subsequent meal: two randomised controlled trails with different amounts of test foods and breakfast energy content. Nutr J 2014; 13:26. [PMID: 24661836 PMCID: PMC4006307 DOI: 10.1186/1475-2891-13-26] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 03/10/2014] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Fibre-rich rye products have been shown to have superior effects on self-reported appetite compared to white wheat bread and some studies have shown lower energy intake after subsequent meal. The aim of the present study was to evaluate the effects of whole grain rye crisp bread (RB) versus refined wheat bread (WB) on appetite in two studies using different portion sizes and total energy intakes. METHODS Two randomised cross-over pre-load studies were conducted in 20 and 21 subjects, respectively. Appetite was rated by visual analogue scale (VAS) for 4 h. In both studies, participants were 39 ± 14 years old and had BMI 23 ± 3. The studies differed in terms of energy content of the breakfasts and proportion of energy from the treatment product as well as amount of test products. Differences between treatments within the two studies were evaluated using mixed models with repeated measures appropriate for cross-over designs. RESULTS In Study one, hunger and desire to eat were significantly lower (P < 0.05) after RB compared with WB, but there were no difference for fullness or difference in energy intake at lunch served ad libitum. In Study two, the portion size was lower than in Study one and the test product constituted a larger proportion of the breakfast. Fullness was significantly higher after RB compared with WB (P < 0.05) and hunger, desire to eat as well as energy intake at lunch were significantly lower (P < 0.05). CONCLUSIONS Whole grain rye crisp bread caused lower self-reported hunger, higher fullness and less desire to eat compared to refined wheat bread. It also led to a lower energy intake after an ad libitum lunch. Results were stronger and/or more consistent when the test meal portion was smaller and accounted for a larger proportion of the total energy intake of the breakfast.
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Affiliation(s)
- Tina Forsberg
- Department of Food Science, BioCenter, Swedish University of Agricultural Sciences (SLU), Box 7051, SE-75007 Uppsala, Sweden
| | - Per Åman
- Department of Food Science, BioCenter, Swedish University of Agricultural Sciences (SLU), Box 7051, SE-75007 Uppsala, Sweden
| | - Rikard Landberg
- Department of Food Science, BioCenter, Swedish University of Agricultural Sciences (SLU), Box 7051, SE-75007 Uppsala, Sweden
- Nutritional Epidemiology Unit, Institute of Environmental Medicine, Karolinska Insitutet, Stockholm, Sweden
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Effects of resistant starch on behaviour, satiety-related hormones and metabolites in growing pigs. Animal 2014; 8:1402-11. [DOI: 10.1017/s1751731114001116] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Parekh PJ, Arusi E, Vinik AI, Johnson DA. The role and influence of gut microbiota in pathogenesis and management of obesity and metabolic syndrome. Front Endocrinol (Lausanne) 2014; 5:47. [PMID: 24778627 PMCID: PMC3984999 DOI: 10.3389/fendo.2014.00047] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 03/23/2014] [Indexed: 12/15/2022] Open
Abstract
The obesity epidemic has drastically impacted the state of health care in the United States. Aside from poor diet hygiene and genetics, there are many other factors thought to play a role in the emergence of obesity and the metabolic syndrome. There has been a paradigm shift toward further investigating the gut microbiota and its implications in the pathogenesis of a variety of disease states, including inflammatory bowel disease, Clostridium difficile, and most recently obesity and the metabolic syndrome. This article is intended to evaluate the role of gut microbiota in the pathogenesis of obesity and metabolic syndrome and its influence in future management.
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Affiliation(s)
- Parth J. Parekh
- Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Eli Arusi
- Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Aaron I. Vinik
- Endocrinology Division, Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
| | - David A. Johnson
- Gastroenterology Division, Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
- *Correspondence: David A. Johnson, Division of Gastroenterology, Eastern Virginia Medical School, 885 Kempsville Road Suite 114, Norfolk, VA 23502, USA e-mail:
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Wanders AJ, Mars M, Borgonjen-van den Berg KJ, de Graaf C, Feskens EJM. Satiety and energy intake after single and repeated exposure to gel-forming dietary fiber: post-ingestive effects. Int J Obes (Lond) 2013; 38:794-800. [PMID: 24030518 DOI: 10.1038/ijo.2013.176] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 06/29/2013] [Accepted: 08/08/2013] [Indexed: 11/09/2022]
Abstract
BACKGROUND Viscous or gel-forming dietary fibers can increase satiety by a more firm texture and increased eating time. Effects of viscous or gel-forming fibers on satiety by post-ingestive mechanisms such as gastric emptying, hormonal signals, nutrient absorption or fermentation are unclear. Moreover, it is unclear whether the effects persist after repeated exposure. OBJECTIVE To investigate satiety and energy intake after single and repeated exposure to gelled fiber by post-ingestive mechanisms. DESIGN In a two-arm crossover design, 32 subjects (24 female subjects, 21±2 y, BMI 21.8±1.9 kg m(-2)) consumed test foods once daily for 15 consecutive days, with 2 weeks of washout. Test foods were isocaloric (0.5 MJ, 200 g) with either 10 g gel-forming pectin or 3 g gelatin and 2 g starch, matched for texture and eating time. Hourly satiety ratings, ad libitum energy intake and body weight were measured on days 1 (single exposure) and 15 (repeated exposure). In addition, hourly breath hydrogen, fasting glucose, insulin, leptin and short-chain fatty acids were measured. RESULTS Subjects rated hunger, desire to eat and prospective intake about 2% lower (P<0.015) and fullness higher (+1.4%; P=0.041) when they received pectin compared with control. This difference was similar after single and repeated exposure (P>0.64). After receiving pectin, energy intake was lower (-5.6%, P=0.012) and breath hydrogen was elevated (+12.6%, P=0.008) after single exposure, but not after repeated exposure. Fasting glucose concentrations were higher both after single and repeated exposure to pectin (+2.1%, P=0.019). Body weight and concentrations of insulin, leptin and short-chain fatty acids did not change during the study. CONCLUSIONS Gelled pectin can increase satiety and reduce energy intake by post-ingestive mechanisms. Although the effects were small, the effects on satiety were consistent over time, whereas the effects on energy intake reduction were not.
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Affiliation(s)
- A J Wanders
- Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - M Mars
- Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | | | - C de Graaf
- Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - E J M Feskens
- Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
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Bindels LB, Dewulf EM, Delzenne NM. GPR43/FFA2: physiopathological relevance and therapeutic prospects. Trends Pharmacol Sci 2013; 34:226-32. [PMID: 23489932 DOI: 10.1016/j.tips.2013.02.002] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 02/07/2013] [Accepted: 02/13/2013] [Indexed: 12/21/2022]
Abstract
Research interest in free fatty acid-binding receptors has been growing during the past decade, with an aim to better understand the modulation of host physiology in response to nutrition. G-protein-coupled receptor 43 (GPR43), also called free fatty acid receptor 2 (FFA2/FFAR2), binds short-chain fatty acids (SCFAs) produced by the microbial fermentation of carbohydrates and has shown promising therapeutic potential. This review presents current knowledge regarding the pharmacological properties of GPR43 and addresses its functions in selected organs (adipose tissue, intestine and immune cells). Furthermore, the demonstration of GPR43 involvement in several pathological conditions such as obesity, inflammatory disease, and cancer suggests new fields of interest related to this receptor. Finally, GPR43 could be a key player in gut microbes-host crosstalk, although further research is needed to clearly evaluate its role in the management of host health by nutrients or treatments targeting the gut microbiota.
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Affiliation(s)
- Laure B Bindels
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
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In vitro comparative evaluation of the impact of lacto-N-biose I, a major building block of human milk oligosaccharides, on the fecal microbiota of infants. Anaerobe 2013; 19:50-7. [DOI: 10.1016/j.anaerobe.2012.12.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 11/05/2012] [Accepted: 12/18/2012] [Indexed: 01/06/2023]
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Souza da Silva C, Bolhuis JE, Gerrits WJJ, Kemp B, van den Borne JJGC. Effects of dietary fibers with different fermentation characteristics on feeding motivation in adult female pigs. Physiol Behav 2013; 110-111:148-57. [PMID: 23313406 DOI: 10.1016/j.physbeh.2013.01.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 12/11/2012] [Accepted: 01/06/2013] [Indexed: 01/10/2023]
Abstract
Dietary fibers can be fermented in the colon, resulting in production of short-chain fatty acids (SCFA) and secretion of satiety-related peptides. Fermentation characteristics (fermentation kinetics and SCFA-profile) differ between fibers and could impact their satiating potential. We investigated the effects of fibers with varying fermentation characteristics on feeding motivation in adult female pigs. Sixteen pair-housed pigs received four diets in four periods in a Latin square design. Starch from a control (C) diet was exchanged, based on gross energy, for inulin (INU), guar gum (GG), or retrograded tapioca starch (RS), each at a low (L) and a high (H) inclusion level. This resulted in a decreased metabolizable energy intake when feeding fiber diets as compared with the C diet. According to in vitro fermentation measurements, INU is rapidly fermentable and yields relatively high amounts of propionate, GG is moderately rapidly fermentable and yields relatively high amounts of acetate, and RS is slowly fermentable and yields relatively high amounts of butyrate. Feeding motivation was assessed using behavioral tests at 1h, 3h and 7h after the morning meal, and home pen behavioral observations throughout the day. The number of wheel turns paid for a food reward in an operant test was unaffected by diet. Pigs on H-diets ran 25% slower for a food reward in a runway test than pigs on L-diets, and showed less spontaneous physical activity and less stereotypic behavior in the hours before the afternoon meal, reflecting increased interprandial satiety. Reduced feeding motivation with increasing inclusion level was most pronounced for RS, as pigs decreased speed in the runway test and tended to have a lower voluntary food intake in an ad libitum food intake test when fed RS-H. In conclusion, increasing levels of fermentable fibers in the diet seemed to enhance satiety in adult pigs, despite a reduction in metabolizable energy supply. RS was the most satiating fiber, possibly due to its slow rate of fermentation and high production of butyrate.
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Affiliation(s)
- Carol Souza da Silva
- Adaptation Physiology Group, Department of Animal Sciences, Wageningen University, P.O. Box 338, 6700 AH Wageningen, The Netherlands.
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Rebello CJ, Liu AG, Greenway FL, Dhurandhar NV. Dietary strategies to increase satiety. ADVANCES IN FOOD AND NUTRITION RESEARCH 2013; 69:105-82. [PMID: 23522796 DOI: 10.1016/b978-0-12-410540-9.00003-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Obesity has a multifactorial etiology. Although obesity is widespread and associated with serious health hazards, its effective prevention and treatment have been challenging. Among the currently available treatment approaches, lifestyle modification to induce a negative energy balance holds a particularly larger appeal due to its wider reach and relative safety. However, long-term compliance with dietary modifications to reduce energy intake is not effective for the majority. The role of many individual nutrients, foods, and food groups in inducing satiety has been extensively studied. Based on this evidence, we have developed sample weight-loss meal plans that include multiple satiating foods, which may collectively augment the satiating properties of a meal. Compared to a typical American diet, these meal plans are considerably lower in energy density and probably more satiating. A diet that exploits the satiating properties of multiple foods may help increase long-term dietary compliance and consequentially enhance weight loss.
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Affiliation(s)
- Candida J Rebello
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, USA
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