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Lin Z, Luo W, Zhang K, Dai S. Environmental and Microbial Factors in Inflammatory Bowel Disease Model Establishment: A Review Partly through Mendelian Randomization. Gut Liver 2024; 18:370-390. [PMID: 37814898 PMCID: PMC11096900 DOI: 10.5009/gnl230179] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/09/2023] [Accepted: 07/24/2023] [Indexed: 10/11/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a complex condition resulting from environmental, microbial, immunologic, and genetic factors. With the advancement of Mendelian randomization research in IBD, we have gained new insights into the relationship between these factors and IBD. Many animal models of IBD have been developed using different methods, but few studies have attempted to model IBD by combining environmental factors and microbial factors. In this review, we examine how environmental factors and microbial factors affect the development and progression of IBD, and how they interact with each other and with the intestinal microbiota. We also summarize the current methods for creating animal models of IBD and compare their advantages and disadvantages. Based on the latest findings from Mendelian randomization studies on the role of environmental factors in IBD, we discuss which environmental and microbial factors could be used to construct a more realistic and reliable IBD experimental model. We propose that animal models of IBD should consider both environmental and microbial factors to better mimic human IBD pathogenesis and to reveal the underlying mechanisms of IBD at the immune and genetic levels. We highlight the importance of environmental and microbial factors in IBD pathogenesis and offer new perspectives and suggestions for improving experimental animal modeling. Our goal is to create a model that closely resembles the clinical picture of IBD.
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Affiliation(s)
- Zesheng Lin
- The First Clinical Medical School, Southern Medical University, Guangzhou, China
| | - Wenjing Luo
- The Second Clinical Medical School, Southern Medical University, Guangzhou, China
| | - Kaijun Zhang
- Department of Gastroenterology, Guangdong Provincial Geriatrics Institute, Guangzhou, ChinaNational Key Clinical Specialty, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Shixue Dai
- Department of Gastroenterology, Guangdong Provincial Geriatrics Institute, Guangzhou, ChinaNational Key Clinical Specialty, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Department of Gastroenterology, Geriatric Center, National Regional Medical Center, Ganzhou Hospital Affiliated to Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Ganzhou, China
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Wang B, Liu C, Guo Z, Li R, Wang Y, Dong C, Sun D. Association of dietary inflammatory index with constipation: Evidence from the National Health and Nutrition Examination Survey. Food Sci Nutr 2024; 12:2122-2130. [PMID: 38455207 PMCID: PMC10916608 DOI: 10.1002/fsn3.3914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 03/09/2024] Open
Abstract
The association of dietary inflammatory index (DII) with constipation has not been well studied in general population. Therefore, the aim of this cross-sectional study was to investigate whether DII is associated with constipation in a large representative sample of the US population. Data were obtained from the 2005-2010 National Health and Nutrition Examination Survey (NHANES). A total of 12,308 participants aged ≥20 years were included in the analysis. DII was calculated based on a single 24-h dietary recall, and constipation was defined as having fewer than three bowel movements per week by the questionnaire on bowel health. Logistic regression analysis demonstrated a significant positive association between DII score and constipation, with each unit increase in DII score associated with a 20% increase in constipation risk (95% CI: 1.13-1.28). Subgroup analysis revealed high odds ratios (ORs) among individuals classified as "Other Race" (OR: 1.42, 95% CI: 1.12-1.80) and "Non-Hispanic White" (OR: 1.31, 95% CI: 1.12-1.54). In addition, RCS analysis indicated a nonlinear relationship between DII and constipation among individuals with a BMI less than 25 (OR: 1.17, 95% CI: 1.07-1.28), while the overall trend remained positive correlation (OR: 1.20, 95% CI: 1.10-1.31). Briefly, our study suggests that there may be a link between DII and constipation, which has implications for the development of dietary interventions aimed at preventing and managing constipation. However, this association was complex and variable depending on individual factors such as BMI and racial background and needed to establish longitudinal studies to confirm the underlying mechanisms between DII and constipation.
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Affiliation(s)
- Bo Wang
- Department of Paediatric SurgeryTianjin Medical University General HospitalTianjinChina
| | - Chunxiang Liu
- Department of Paediatric SurgeryTianjin Medical University General HospitalTianjinChina
| | - Zheng Guo
- Department of Paediatric SurgeryTianjin Medical University General HospitalTianjinChina
| | - Rui Li
- Department of Paediatric SurgeryTianjin Medical University General HospitalTianjinChina
| | - Yuchao Wang
- Department of Paediatric SurgeryTianjin Medical University General HospitalTianjinChina
| | - Caixia Dong
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of PharmacyTianjin Medical UniversityTianjinChina
| | - Daqing Sun
- Department of Paediatric SurgeryTianjin Medical University General HospitalTianjinChina
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Álvarez-Herms J, González-Benito A, Corbi F, Odriozola A. What if gastrointestinal complications in endurance athletes were gut injuries in response to a high consumption of ultra-processed foods? Please take care of your bugs if you want to improve endurance performance: a narrative review. Eur J Appl Physiol 2024; 124:383-402. [PMID: 37839038 DOI: 10.1007/s00421-023-05331-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 09/20/2023] [Indexed: 10/17/2023]
Abstract
To improve performance and recovery faster, athletes are advised to eat more often than usual and consume higher doses of simple carbohydrates, during and after exercise. Sports energetic supplements contain food additives, such as artificial sweeteners, emulsifiers, acidity regulators, preservatives, and salts, which could be harmful to the gut microbiota and impair the intestinal barrier function. The intestinal barrier plays a critical function in bidirectionally regulation of the selective transfer of nutrients, water, and electrolytes, while preventing at the same time, the entrance of harmful substances (selective permeability). The gut microbiota helps to the host to regulate intestinal homeostasis through metabolic, protective, and immune functions. Globally, the gut health is essential to maintain systemic homeostasis in athletes, and to ensure proper digestion, metabolization, and substrate absorption. Gastrointestinal complaints are an important cause of underperformance and dropout during endurance events. These complications are directly related to the loss of gut equilibrium, mainly linked to microbiota dysbiosis and leaky gut. In summary, athletes must be cautious with the elevated intake of ultra-processed foods and specifically those contained on sports nutrition supplements. This review points out the specific nutritional interventions that should be implemented and/or discontinued depending on individual gut functionality.
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Affiliation(s)
- Jesús Álvarez-Herms
- Phymolab (Physiology and Molecular Laboratory), Collado Hermoso, Segovia, Spain.
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Bilbao, Spain.
| | - A González-Benito
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - F Corbi
- Institut Nacional d'Educació Física de Catalunya (INEFC), University of Lleida (UdL), Lleida, Spain
| | - A Odriozola
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Bilbao, Spain
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Yin J, Cheng L, Hong Y, Li Z, Li C, Ban X, Zhu L, Gu Z. A Comprehensive Review of the Effects of Glycemic Carbohydrates on the Neurocognitive Functions Based on Gut Microenvironment Regulation and Glycemic Fluctuation Control. Nutrients 2023; 15:5080. [PMID: 38140339 PMCID: PMC10745758 DOI: 10.3390/nu15245080] [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: 11/15/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Improper glycemic carbohydrates (GCs) consumption can be a potential risk factor for metabolic diseases such as obesity and diabetes, which may lead to cognitive impairment. Although several potential mechanisms have been studied, the biological relationship between carbohydrate consumption and neurocognitive impairment is still uncertain. In this review, the main effects and mechanisms of GCs' digestive characteristics on cognitive functions are comprehensively elucidated. Additionally, healthier carbohydrate selection, a reliable research model, and future directions are discussed. Individuals in their early and late lives and patients with metabolic diseases are highly susceptible to dietary-induced cognitive impairment. It is well known that gut function is closely related to dietary patterns. Unhealthy carbohydrate diet-induced gut microenvironment disorders negatively impact cognitive functions through the gut-brain axis. Moreover, severe glycemic fluctuations, due to rapidly digestible carbohydrate consumption or metabolic diseases, can impair neurocognitive functions by disrupting glucose metabolism, dysregulating calcium homeostasis, oxidative stress, inflammatory responses, and accumulating advanced glycation end products. Unstable glycemic status can lead to more severe neurological impairment than persistent hyperglycemia. Slow-digested or resistant carbohydrates might contribute to better neurocognitive functions due to stable glycemic response and healthier gut functions than fully gelatinized starch and nutritive sugars.
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Affiliation(s)
- Jian Yin
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
| | - Li Cheng
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Yan Hong
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Zhaofeng Li
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Caiming Li
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Xiaofeng Ban
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Ling Zhu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Zhengbiao Gu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (J.Y.); (Y.H.); (Z.L.); (C.L.); (X.B.); (L.Z.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
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Walker GT, Gerner RR, Nuccio SP, Raffatellu M. Murine Models of Salmonella Infection. Curr Protoc 2023; 3:e824. [PMID: 37478288 PMCID: PMC10372748 DOI: 10.1002/cpz1.824] [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] [Indexed: 07/23/2023]
Abstract
The pathogen Salmonella enterica encompasses a range of bacterial serovars that cause intestinal inflammation and systemic infections in humans. Mice are a widely used infection model due to their relative simplicity and versatility. Here, we provide standardized protocols for culturing the prolific zoonotic pathogen S. enterica serovar Typhimurium for intragastric inoculation of mice to model colitis or systemic dissemination, along with techniques for direct extraintestinal infection. Furthermore, we present procedures for quantifying pathogen burden and for characterizing the immune response by analyzing tissue pathology, inflammatory markers, and immune cells from intestinal tissues. © 2023 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Murine colitis model utilizing oral streptomycin pretreatment and oral S. Typhimurium administration Basic Protocol 2: Intraperitoneal injection of S. Typhimurium for modeling extraintestinal infection Support Protocol 1: Preparation of S. Typhimurium inoculum Support Protocol 2: Preparation of mixed S. Typhimurium inoculum for competitive infection Basic Protocol 3: Assessment of S. Typhimurium burden Support Protocol 3: Preservation and pathological assessment of S. Typhimurium-infected tissues Support Protocol 4: Measurement of inflammatory marker expression in intestinal tissues by qPCR Support Protocol 5: Preparation of intestinal content for inflammatory marker quantification by ELISA Support Protocol 6: Immune cell isolation from Salmonella-infected intestinal tissues.
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Affiliation(s)
- Gregory T. Walker
- Division of Host-Microbe Systems & Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
| | - Romana R. Gerner
- Division of Host-Microbe Systems & Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
- Technical University Munich, TUM School of Life Sciences Weihenstephan, ZIEL – Institute for Food & Health, Freising, Germany
- Department of Internal Medicine III, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Sean-Paul Nuccio
- Division of Host-Microbe Systems & Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
| | - Manuela Raffatellu
- Division of Host-Microbe Systems & Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA 92093, USA
- Chiba University-UC San Diego Center for Mucosal Immunology, Allergy, and Vaccines (CU-UCSD cMAV), La Jolla, CA 92093, USA
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Martinez-Vega MV, Galván-Menéndez-Conde S, Freyre-Fonseca V. Possible Signaling Pathways in the Gut Microbiota-Brain Axis for the Development of Parkinson's Disease Caused by Chronic Consumption of Food Additives. ACS Chem Neurosci 2023. [PMID: 37171224 DOI: 10.1021/acschemneuro.3c00170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
It is well-known that consumption of synthetic and natural food additives has both positive and negative effects in the human body. However, it is not clear yet how food additives are related to the development of Parkinson's disease. Therefore, in this review work, the food additive effects related to the gut microbiota-brain axis and the processes that are carried out to develop Parkinson's disease are studied. To this end, a systematic literature analysis is performed with the selected keywords and the food additive effects are studied to draw possible routes of action. This analysis leads to the proposition of a model that explains the pathways that relate the ingestion of food additives to the development of Parkinson's disease. This work motivates further research that ponders the safety of food additives by measuring their impacts over the gut microbiota-brain axis.
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Affiliation(s)
- Melanie Verónica Martinez-Vega
- Facultad de Ciencias de la Salud, Universidad Anahuac Mexico, Av. Universidad Anahuac 46, Naucalpan de Juarez 52786, Mexico
| | | | - Verónica Freyre-Fonseca
- Centro de Investigación en Ciencias de la Salud (CICSA), FCS, Universidad Anáhuac México, Campus Norte, Huixquilucan, Estado de México 52786, Mexico
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Zhou N, Xie ZP, Liu Q, Xu Y, Dai SC, Lu J, Weng JY, Wu LD. The dietary inflammatory index and its association with the prevalence of hypertension: A cross-sectional study. Front Immunol 2023; 13:1097228. [PMID: 36741368 PMCID: PMC9893776 DOI: 10.3389/fimmu.2022.1097228] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/20/2022] [Indexed: 01/21/2023] Open
Abstract
Aims We aim to investigate the association of the Dietary Inflammatory Index (DII) with the prevalence of hypertension in a large multiracial population in the United States. Methods Participants from the National Health and Nutrition Examination Survey (NHANES) (1999-2018) were included in this cross-sectional study. Dietary information was obtained and used to calculate DII. Blood pressures of participants were measured by experienced examiners. The NHANES used the method of "stratified multistage probability sampling," and this study is a weight analysis following the NHANES analytic guidance. Weight logistic regression analysis was adopted to investigate the association of hypertension with DII. Least Absolute Shrinkage and Selection Operator (LASSO) regression was carried out to screen the most important dietary factors associated with the risk of hypertension. Moreover, a nomogram model based on key dietary factors was established; the receiver operating characteristic (ROC) curve was used to evaluate the diagnostic power of the nomogram model for screening hypertension risk. Results A total of 45,023 participants were included in this study, representing 191 million residents in the United States. Participants with hypertension had an elevated DII compared with those without hypertension. Weight logistic regression showed that an increment of DII was strongly associated with hypertension after adjusting for confounding factors. The nomogram model, based on key dietary factors screened by LASSO regression, showed a favorable discriminatory power with an area under the curve (AUC) of 78.5% (95% CI: 78.5%-79.3%). Results of the sensitivity analysis excluding participants who received any drug treatment were consistent with those in the main analysis. Conclusion An increment of DII is associated with the risk of hypertension. For better prevention and treatment of hypertension, more attention should be paid to controlling dietary inflammation.
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Affiliation(s)
- Nan Zhou
- Health Examination Center, Huadong Sanatorium, Wuxi, China
| | - Zhi-Ping Xie
- Health Examination Center, Huadong Sanatorium, Wuxi, China
| | - Qing Liu
- Health Examination Center, Huadong Sanatorium, Wuxi, China
| | - Yun Xu
- Department of Anesthesiology, Huadong Sanatorium, Wuxi, China
| | - Si-Cheng Dai
- Health Examination Center, Huadong Sanatorium, Wuxi, China
| | - Juan Lu
- Department of Anesthesiology, Huadong Sanatorium, Wuxi, China,*Correspondence: Juan Lu, ; Li-Da Wu, ; Jia-Yi Weng,
| | - Jia-Yi Weng
- Department of Cardiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China,*Correspondence: Juan Lu, ; Li-Da Wu, ; Jia-Yi Weng,
| | - Li-Da Wu
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China,*Correspondence: Juan Lu, ; Li-Da Wu, ; Jia-Yi Weng,
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Children With Celiac Disease Consume Specific Food Additives More Frequently Compared to Children Without Celiac Disease. Dig Dis Sci 2022; 68:1944-1949. [PMID: 36585541 DOI: 10.1007/s10620-022-07792-2] [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: 09/03/2022] [Accepted: 12/09/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Gluten-free foods often contain food additives to improve palatability, but the long-term effects on the human gastrointestinal tract are not well known. AIMS This study aimed to quantify frequency of food additive exposure in children with and without celiac disease (CD). METHODS Children with and without CD were enrolled and demographic data and three-day diet records were obtained. Foods were classified as gluten-free products (GFP) and "processed food", and were evaluated for presence of select food additives: polysorbate 80, carboxymethylcellulose, xanthan gum, guar gum, soy lecithin, titanium dioxide, carrageenan, maltodextrin, and aluminosilicates. The frequency of exposure was described. RESULTS Twenty-eight participants were included in final analysis. Children with CD had a higher number of daily exposures to xanthan gum (5.3 ± 3.1 vs 2.3 ± 2.4; p = 0.009), but similar exposures to the other additives. GFP contributed 29% of total calories in the GF diet. Both groups had similar intake of processed foods. Comparing GFP and gluten-containing processed foods, 68% vs. 25% contained at least one food additive of interest (p < 0.0001); in the celiac group, those with higher consumption of GFP tended to have a higher frequency of exposure to food additives (p = 0.09). CONCLUSION A gluten-free diet and consumption of GFP may contribute to differences in food additive intake; quantifying food additive exposures and their effect on humans requires further study.
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Tan YL, Zhao YE. Advances in understanding of effects of dietary nutrients in inflammatory bowel disease patients. Shijie Huaren Xiaohua Zazhi 2022; 30:921-927. [DOI: 10.11569/wcjd.v30.i21.921] [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] [Indexed: 11/08/2022] Open
Abstract
The occurrence of inflammatory bowel disease (IBD) is influenced by environmental factors. Diet, as an important environmental factor, is closely associated with intestinal ecology and plays a critical role in the pathological process of IBD. This review summarizes the role of major dietary nutrients in the pathogenesis of IBD, with an aim to provide clues for the prevention and treatment of IBD.
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Affiliation(s)
- Yan-Li Tan
- Department of Gastroenterology, TongJi Hospital, TongJi Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yu-E Zhao
- Department of Gastroenterology, TongJi Hospital, TongJi Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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Illikoud N, Mantel M, Rolli-Derkinderen M, Gagnaire V, Jan G. Dairy starters and fermented dairy products modulate gut mucosal immunity. Immunol Lett 2022; 251-252:91-102. [DOI: 10.1016/j.imlet.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 11/07/2022]
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Wu L, Shi Y, Kong C, Zhang J, Chen S. Dietary Inflammatory Index and Its Association with the Prevalence of Coronary Heart Disease among 45,306 US Adults. Nutrients 2022; 14:4553. [PMID: 36364813 PMCID: PMC9656485 DOI: 10.3390/nu14214553] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 07/25/2023] Open
Abstract
Inflammation plays a pivotal in the occurrence and development of coronary heart disease (CHD). We aim to investigate the association between the Dietary Inflammatory Index (DII) and CHD in the present study. In this cross-sectional study, adult participants from the National Health and Nutrition Examination Survey (NHANES) (1999-2018) were enrolled. The social demographic information, lifestyle factors, blood biochemical measurements, dietary information, and CHD status of all the participants were systematically collected. Multivariable logistic regression was adopted to investigate the association between the risk of CHD and the DII. Besides, restricted cubic spline (RCS) analysis was used to explore whether there was a nonlinear association of the DII and CHD. Subgroup analysis stratified by sex, age, race/ethnicity, and BMI was conducted to evaluate the association of the DII and CHD among different populations. A total of 45,306 adults from NHANES (1999-2018) were included. Compared with individuals without CHD, the DIIs of the participants with CHD were significantly elevated. A positive association was observed between the DII and CHD in multivariable logistic analysis after adjusting for age, sex, race/ethnicity, education levels, smoking, drinking, diabetes, hypertension, and body mass index (BMI). Results of RCS analysis suggested a nonlinear relationship between the DII and CHD. In addition, the increment of the DII had a greater impact on female individuals compared with male individuals. The DII is closely associated with the risk of CHD. For better prevention and treatment of CHD, more attention should be paid to controlling dietary inflammation.
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Inflammatory Bowel Disease and Customized Nutritional Intervention Focusing on Gut Microbiome Balance. Nutrients 2022; 14:nu14194117. [PMID: 36235770 PMCID: PMC9572914 DOI: 10.3390/nu14194117] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/24/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022] Open
Abstract
Inflammatory bowel disease (IBD) represents a chronic relapsing–remitting condition affecting the gastrointestinal system. The specific triggering IBD elements remain unknown: genetic variability, environmental factors, and alterations in the host immune system seem to be involved. An unbalanced diet and subsequent gut dysbiosis are risk factors, too. This review focuses on the description of the impact of pro- and anti-inflammatory food components on IBD, the role of different selected regimes (such as Crohn’s Disease Exclusion Diet, Immunoglobulin Exclusion Diet, Specific Carbohydrate Diet, LOFFLEX Diet, Low FODMAPs Diet, Mediterranean Diet) in the IBD management, and their effects on the gut microbiota (GM) composition and balance. The purpose is to investigate the potential positive action on IBD inflammation, which is associated with the exclusion or addition of certain foods or nutrients, to more consciously customize the nutritional intervention, taking also into account GM fluctuations during both disease flare-up and remission.
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Fitzpatrick JA, Melton SL, Yao CK, Gibson PR, Halmos EP. Dietary management of adults with IBD - the emerging role of dietary therapy. Nat Rev Gastroenterol Hepatol 2022; 19:652-669. [PMID: 35577903 DOI: 10.1038/s41575-022-00619-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/12/2022] [Indexed: 02/08/2023]
Abstract
Historically, dietitians played a minor part in the management of inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. Patients were commonly referred for consequences of uncontrolled disease, such as malnutrition and bowel obstruction risk. Today, dietitians are fundamental members of the multidisciplinary IBD team, from educating on the role of diet at diagnosis and throughout the lifespan of a patient with IBD to guiding primary induction therapy. This aspect is reflected in published guidelines for IBD management, which previously placed diet as only a minor factor, but now have diet-specific publications. This Review describes a four-step approach in a dietitian's assessment and management of diet in patients with IBD: (1) identifying and correcting nutritional gaps and dietary imbalances; (2) considering diet to treat active disease with the use of exclusive enteral nutrition (EEN) or emerging diets that could replace EEN; (3) using therapeutic diets to control existing complications of IBD, such as reduced fibre to prevent bowel obstruction in stricturing disease or a fermentable oligosaccharides, disaccharides, monosaccharides and polyols diet to manage co-existing functional gut symptoms; and (4) considering the role of diet in preventing IBD development in high-risk populations.
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Affiliation(s)
- Jessica A Fitzpatrick
- Department of Gastroenterology, The Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | - Sarah L Melton
- Department of Gastroenterology, The Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | - Chu Kion Yao
- Department of Gastroenterology, The Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | - Peter R Gibson
- Department of Gastroenterology, The Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | - Emma P Halmos
- Department of Gastroenterology, The Alfred Hospital and Monash University, Melbourne, Victoria, Australia.
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Almutairi R, Basson AR, Wearsh P, Cominelli F, Rodriguez-Palacios A. Validity of food additive maltodextrin as placebo and effects on human gut physiology: systematic review of placebo-controlled clinical trials. Eur J Nutr 2022; 61:2853-2871. [PMID: 35230477 PMCID: PMC9835112 DOI: 10.1007/s00394-022-02802-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 01/06/2022] [Indexed: 01/16/2023]
Abstract
PURPOSE Maltodextrin (MDX) is a polysaccharide food additive commonly used as oral placebo/control to investigate treatments/interventions in humans. The aims of this study were to appraise the MDX effects on human physiology/gut microbiota, and to assess the validity of MDX as a placebo-control. METHODS We performed a systematic review of randomized-placebo-controlled clinical trials (RCTs) where MDX was used as an orally consumed placebo. Data were extracted from study results where effects (physiological/microbial) were attributed (or not) to MDX, and from study participant outcomes data, before-and-after MDX consumption, for post-publication 're-analysis' using paired-data statistics. RESULTS Of two hundred-sixteen studies on 'MDX/microbiome', seventy RCTs (n = 70) were selected for analysis. Supporting concerns regarding the validity of MDX as a placebo, the majority of RCTs (60%, CI 95% = 0.48-0.76; n = 42/70; Fisher-exact p = 0.001, expected < 5/70) reported MDX-induced physiological (38.1%, n = 16/42; p = 0.005), microbial metabolite (19%, n = 8/42; p = 0.013), or microbiome (50%, n = 21/42; p = 0.0001) effects. MDX-induced alterations on gut microbiome included changes in the Firmicutes and/or Bacteroidetes phyla, and Lactobacillus and/or Bifidobacterium species. Effects on various immunological, inflammatory markers, and gut function/permeability were also documented in 25.6% of the studies (n = 10/42). Notably, there was considerable variability in the direction of effects (decrease/increase), MDX dose, form (powder/pill), duration, and disease/populations studied. Overall, only 20% (n = 14/70; p = 0.026) of studies cross-referenced MDX as a justifiable/innocuous placebo, while 2.9% of studies (n = 2/70) acknowledged their data the opposite. CONCLUSION Orally-consumed MDX often (63.9% of RCTs) induces effects on human physiology/gut microbiota. Such effects question the validity of MDX as a placebo-control in human clinical trials.
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Affiliation(s)
- Rawan Almutairi
- Department of Pathology, Case Western Reserve University, 2109 Adelbert Road, Cleveland, OH, 44106, USA
| | - Abigail Raffner Basson
- Department of Medicine and Division of Gastroenterology & Liver Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Pamela Wearsh
- Department of Pathology, Case Western Reserve University, 2109 Adelbert Road, Cleveland, OH, 44106, USA
| | - Fabio Cominelli
- Department of Medicine and Division of Gastroenterology & Liver Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
- University Hospitals Research and Education Institute, University Hospital Cleveland Medical Center, Cleveland, OH, USA
| | - Alexander Rodriguez-Palacios
- Department of Medicine and Division of Gastroenterology & Liver Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, USA.
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
- Germ-Free and Gut Microbiome Core, Cleveland Digestive Diseases Research Core Center, Case Western Reserve University, 2109 Adelbert Road, Cleveland, OH, USA.
- University Hospitals Research and Education Institute, University Hospital Cleveland Medical Center, Cleveland, OH, USA.
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15
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Liu C, Zhan S, Tian Z, Li N, Li T, Wu D, Zeng Z, Zhuang X. Food Additives Associated with Gut Microbiota Alterations in Inflammatory Bowel Disease: Friends or Enemies? Nutrients 2022; 14:nu14153049. [PMID: 35893902 PMCID: PMC9330785 DOI: 10.3390/nu14153049] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/08/2022] [Accepted: 07/21/2022] [Indexed: 12/13/2022] Open
Abstract
During the 21st century, the incidence and prevalence of inflammatory bowel disease (IBD) is rising globally. Despite the pathogenesis of IBD remaining largely unclear, the interactions between environmental exposure, host genetics and immune response contribute to the occurrence and development of this disease. Growing evidence implicates that food additives might be closely related to IBD, but the involved molecular mechanisms are still poorly understood. Food additives may be categorized as distinct types in accordance with their function and property, including artificial sweeteners, preservatives, food colorant, emulsifiers, stabilizers, thickeners and so on. Various kinds of food additives play a role in modifying the interaction between gut microbiota and intestinal inflammation. Therefore, this review comprehensively synthesizes the current evidence on the interplay between different food additives and gut microbiome alterations, and further elucidates the potential mechanisms of food additives–associated microbiota changes involved in IBD.
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Affiliation(s)
- Caiguang Liu
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Shukai Zhan
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Zhenyi Tian
- Department of Gastroenterology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China;
| | - Na Li
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Tong Li
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Dongxuan Wu
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
| | - Zhirong Zeng
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
- Correspondence: (Z.Z.); (X.Z.)
| | - Xiaojun Zhuang
- Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; (C.L.); (S.Z.); (N.L.); (T.L.); (D.W.)
- Correspondence: (Z.Z.); (X.Z.)
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16
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Ban QY, Liu M, Ding N, Chen Y, Lin Q, Zha JM, He WQ. Nutraceuticals for the Treatment of IBD: Current Progress and Future Directions. Front Nutr 2022; 9:794169. [PMID: 35734374 PMCID: PMC9207447 DOI: 10.3389/fnut.2022.794169] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 05/11/2022] [Indexed: 11/29/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic relapsing-remitting inflammatory disease of the gastrointestinal tract. Patients are usually diagnosed in adolescence and early adulthood and need lifelong treatment. In recent years, it has been found that diet plays an important role in the pathogenesis of IBD. Diet can change intestinal barrier function, affect the structure and function of intestinal flora, and promote immune disorder, thus promoting inflammation. Many patients believe that diet plays a role in the onset and treatment of the disease and changes their diet spontaneously. This review provides some insights into how nutraceuticals regulate intestinal immune homeostasis and improve intestinal barrier function. We reviewed the research results of dietary fiber, polyphenols, bioactive peptides, and other nutraceuticals in the prevention and treatment of IBD and sought better alternative or supplementary treatment methods for IBD patients.
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Affiliation(s)
- Quan-Yao Ban
- Department of Oncology, The First Affiliated Hospital of Soochow University, Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Suda (CAM-SU) Genomic Resource Center of Soochow Medical School, Suzhou, China
| | - Mei Liu
- Department of Oncology, The First Affiliated Hospital of Soochow University, Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Suda (CAM-SU) Genomic Resource Center of Soochow Medical School, Suzhou, China
| | - Ning Ding
- Department of Oncology, The First Affiliated Hospital of Soochow University, Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Suda (CAM-SU) Genomic Resource Center of Soochow Medical School, Suzhou, China
| | - Ying Chen
- Department of Gastroenterology, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, China
| | - Qiong Lin
- Department of Gastroenterology, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, China
| | - Juan-Min Zha
- Department of Oncology, The First Affiliated Hospital of Soochow University, Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Suda (CAM-SU) Genomic Resource Center of Soochow Medical School, Suzhou, China
- *Correspondence: Juan-Min Zha
| | - Wei-Qi He
- Department of Oncology, The First Affiliated Hospital of Soochow University, Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Suda (CAM-SU) Genomic Resource Center of Soochow Medical School, Suzhou, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
- Wei-Qi He
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17
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Lo CH, Khandpur N, Rossato SL, Lochhead P, Lopes EW, Burke KE, Richter JM, Song M, Korat AVA, Sun Q, Fung TT, Khalili H, Chan AT, Ananthakrishnan AN. Ultra-processed Foods and Risk of Crohn's Disease and Ulcerative Colitis: A Prospective Cohort Study. Clin Gastroenterol Hepatol 2022; 20:e1323-e1337. [PMID: 34461300 PMCID: PMC8882700 DOI: 10.1016/j.cgh.2021.08.031] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The rising incidence of inflammatory bowel disease in regions undergoing Westernization has coincided with the increase in ultra-processed food (UPF) consumption over the past few decades. We aimed to examine the association between consumption of UPFs and the risk of Crohn's disease (CD) and ulcerative colitis (UC). METHODS We performed a prospective cohort study of 3 nationwide cohorts of health professionals in the United States-the Nurses' Health Study (1986-2014), the Nurses' Health Study II (1991-2017), and the Health Professionals Follow-up Study (1986-2012). We employed Cox proportional hazards models with adjustment for confounders to estimate the hazard ratios (HRs) and 95% confidence intervals (CIs) for CD and UC according to self-reported consumption of UPFs. RESULTS The study included 245,112 participants. Over 5,468,444 person-years of follow-up, we documented 369 incident cases of CD and 488 incident cases of UC. The median age at diagnosis was 56 years (range, 29-85 years). Compared with participants in the lowest quartile of simple updated UPF consumption, those in the highest quartile had a significantly increased risk of CD (HR, 1.70; 95% CI, 1.23-2.35; Ptrend = .0008). Among different UPF subgroups, ultra-processed breads and breakfast foods; frozen or shelf-stable ready-to-eat/heat meals; and sauces, cheeses, spreads, and gravies showed the strongest positive associations with CD risk (HR per 1 standard deviation increase in intake, 1.18 [95% CI, 1.07-1.29], 1.11 [95% CI, 1.01-1.22], and 1.14 [95% CI, 1.02-1.27], respectively). There was no consistent association between UPF intake and UC risk. CONCLUSIONS Higher UPF intake was associated with an increased risk of incident CD. Further studies are needed to identify specific contributory dietary components.
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Affiliation(s)
- Chun-Han Lo
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Neha Khandpur
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA,Department of Nutrition, School of Public Health, University of São Paulo, São Paulo, Brazil,Center for Epidemiological Studies in Health and Nutrition, Faculty of Public Health, University of São Paulo, São Paulo, Brazil
| | - Sinara Laurini Rossato
- Graduation course in Public Health, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Paul Lochhead
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Emily W. Lopes
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Kristin E. Burke
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - James M. Richter
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Mingyang Song
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Andres Victor Ardisson Korat
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Qi Sun
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA,Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Teresa T. Fung
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA,Department of Nutrition, Simmons University, Boston, Massachusetts, USA
| | - Hamed Khalili
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Andrew T. Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Ashwin N. Ananthakrishnan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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18
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Amadieu C, Maccioni L, Leclercq S, Neyrinck AM, Delzenne NM, de Timary P, Stärkel P. Liver alterations are not improved by inulin supplementation in alcohol use disorder patients during alcohol withdrawal: A pilot randomized, double-blind, placebo-controlled study. EBioMedicine 2022; 80:104033. [PMID: 35490461 PMCID: PMC9062816 DOI: 10.1016/j.ebiom.2022.104033] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 11/19/2022] Open
Abstract
Background Emerging evidence highlights that targeting the gut microbiota could be an interesting approach to improve alcohol liver disease due to its important plasticity. This study aimed to evaluate the effects of inulin supplementation on liver parameters in alcohol use disorder (AUD) patients (whole sample) and in a subpopulation with early alcohol-associated liver disease (eALD). Methods Fifty AUD patients, hospitalized for a 3-week detoxification program, were enrolled in a randomized, double-blind, placebo-controlled study and assigned to prebiotic (inulin) versus placebo for 17 days. Liver damage, microbial translocation, inflammatory markers and 16S rDNA sequencing were measured at the beginning (T1) and at the end of the study (T2). Findings Compared to placebo, AST (β = 8.55, 95% CI [2.33:14.77]), ALT (β = 6.01, 95% CI [2.02:10.00]) and IL-18 (β = 113.86, 95% CI [23.02:204.71]) were statistically significantly higher in the inulin group in the whole sample at T2. In the eALD subgroup, inulin supplementation leads to specific changes in the gut microbiota, including an increase in Bifidobacterium and a decrease of Bacteroides. Despite those changes, AST (β = 14.63, 95% CI [0.91:28.35]) and ALT (β = 10.40, 95% CI [1.93:18.88]) at T2 were higher in the inulin group compared to placebo. Treatment was well tolerated without important adverse events or side effects. Interpretation This pilot study shows that 17 days of inulin supplementation versus placebo, even though it induces specific changes in the gut microbiota, did not alleviate liver damage in AUD patients. Further studies with a larger sample size and duration of supplementation with adequate monitoring of liver parameters are needed to confirm these results. Gut2Brain study: https://clinicaltrials.gov/ct2/show/NCT03803709 Funding Fédération Wallonie-Bruxelles, FRS-FNRS, Fondation Saint-Luc.
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19
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Zangara MT, Ponti AK, Miller ND, Engelhart MJ, Ahern PP, Sangwan N, McDonald C. Maltodextrin Consumption Impairs the Intestinal Mucus Barrier and Accelerates Colitis Through Direct Actions on the Epithelium. Front Immunol 2022; 13:841188. [PMID: 35359925 PMCID: PMC8963984 DOI: 10.3389/fimmu.2022.841188] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/21/2022] [Indexed: 12/31/2022] Open
Abstract
Food additives are common components of processed foods consumed in a Western diet. In inflammatory bowel disease patients, some diets that exclude food additives improved clinical disease parameters, suggesting a link between food additives and disease pathogenesis. Food additives also enhanced disease severity in mouse colitis models through incompletely described mechanisms. This study examined the mechanisms by which the food additive maltodextrin (MDX) alters the development of colitis in a murine model. Interleukin-10 knockout (IL10KO) mice were fed diets supplemented with MDX or carboxymethyl cellulose (CMC) to determine their impact on colitis onset and severity; microbiome composition, function, and location; colonic immune cell infiltrates; and mucus layer integrity. Primary IL10KO colonic epithelial monolayers were used to dissect the impact of MDX directly on epithelial differentiation and mucus production. MDX or CMC consumption increased the incidence and severity of colitis, as well as decreased microbiome diversity, altered microbial composition, and decreased fecal acetic acid levels. The number of mucus producing cells were decreased in food additive fed mice and resulted in increased microbial proximity to the intestinal epithelium. Additionally, MDX supplementation resulted in crypt hyperplasia and expansion of the HopX+ injury renewal stem cell niche. In primary intestinal epithelial-derived monolayers devoid of microbes and immune cells, MDX exposure decreased goblet cell number and mucus production in association with downregulated expression of the transcription factor Klf4, a marker of terminally differentiated goblet cells. These results suggest MDX disrupts the balance of epithelial cell differentiation and proliferation to contribute to disease pathogenesis through direct and indirect actions on the intestinal epithelial barrier.
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Affiliation(s)
- Megan T. Zangara
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - András K. Ponti
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Noah D. Miller
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Department of Biology, John Carroll University, University Heights, OH, United States
| | - Morgan J. Engelhart
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Philip P. Ahern
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Naseer Sangwan
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Microbiome Composition and Analytics Cores, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Christine McDonald
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
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20
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Parfenov AI. Food intolerances and the small intestine. TERAPEVT ARKH 2022; 94:153-159. [DOI: 10.26442/00403660.2022.02.201364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 03/27/2022] [Indexed: 11/22/2022]
Abstract
The article presents an analysis of the literature on food intolerance (FS) associated with the presence in the diet of fermentable oligodimosaccharides and polyols FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides and polyols), histamine and food additives. The relationship between FS and insufficient activity of enzymes of the small intestine mucosa, in particular, in patients with irritable bowel syndrome, is discussed. FS often noted in them forces them to strictly adhere to the elimination diet and significantly impair the quality of life due to dissatisfaction with the results of treatment. Analysis of the literature has confirmed in many patients with irritable bowel syndrome an etiotropic relationship with poor food tolerance and dictates the need for randomized studies to further study the pathogenetic mechanisms of increasing food tolerance under the influence of cytoprotective therapy.
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21
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Food Additives, a Key Environmental Factor in the Development of IBD through Gut Dysbiosis. Microorganisms 2022; 10:microorganisms10010167. [PMID: 35056616 PMCID: PMC8780106 DOI: 10.3390/microorganisms10010167] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/04/2022] [Accepted: 01/11/2022] [Indexed: 12/12/2022] Open
Abstract
Diet is a key environmental factor in inflammatory bowel disease (IBD) and, at the same time, represents one of the most promising therapies for IBD. Our daily diet often contains food additives present in numerous processed foods and even in dietary supplements. Recently, researchers and national authorities have been paying much attention to their toxicity and effects on gut microbiota and health. This review aims to gather the latest data focusing on the potential role of food additives in the pathogenesis of IBDs through gut microbiota modulation. Some artificial emulsifiers and sweeteners can induce the dysbiosis associated with an alteration of the intestinal barrier, an activation of chronic inflammation, and abnormal immune response accelerating the onset of IBD. Even if most of these results are retrieved from in vivo and in vitro studies, many artificial food additives can represent a potential hidden driver of gut chronic inflammation through gut microbiota alterations, especially in a population with IBD predisposition. In this context, pending the confirmation of these results by large human studies, it would be advisable that IBD patients avoid the consumption of processed food containing artificial food additives and follow a personalized nutritional therapy prescribed by a clinical nutritionist.
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22
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Basson AR, Rodriguez-Palacios A, Cominelli F. Artificial Sweeteners: History and New Concepts on Inflammation. Front Nutr 2021; 8:746247. [PMID: 34631773 PMCID: PMC8497813 DOI: 10.3389/fnut.2021.746247] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022] Open
Abstract
Since the introduction of artificial sweeteners (AS) to the North American market in the 1950s, a growing number of epidemiological and animal studies have suggested that AS may induce changes in gut bacteria and gut wall immune reactivity, which could negatively affect individuals with or susceptible to chronic inflammatory conditions such as inflammatory bowel disease (IBD), a disorder that has been growing exponentially in westernized countries. This review summarizes the history of current FDA-approved AS and their chemical composition, metabolism, and bacterial utilization, and provides a scoping overview of the disease mechanisms associated with the induction or prevention of inflammation in IBD. We provide a general outlook on areas that have been both largely and scarcely studied, emerging concepts using silica, and describe the effects of AS on acute and chronic forms of intestinal inflammation.
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Affiliation(s)
- Abigail Raffner Basson
- Division of Gastroenterology and Liver Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
| | - Alexander Rodriguez-Palacios
- Division of Gastroenterology and Liver Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
- Mouse Models, Silvio O'Conte Cleveland Digestive Diseases Research Core Center, Cleveland, OH, United States
- Germ-Free and Gut Microbiome Core, Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, United States
| | - Fabio Cominelli
- Division of Gastroenterology and Liver Diseases, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Digestive Health Research Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
- Mouse Models, Silvio O'Conte Cleveland Digestive Diseases Research Core Center, Cleveland, OH, United States
- Germ-Free and Gut Microbiome Core, Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, United States
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23
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Scarallo L, Lionetti P. Dietary Management in Pediatric Patients with Crohn's Disease. Nutrients 2021; 13:1611. [PMID: 34064976 PMCID: PMC8150738 DOI: 10.3390/nu13051611] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 12/11/2022] Open
Abstract
It has been widely endorsed that a multifactorial etiology, including interaction between genetic and environmental factors, can contribute to Crohn's Disease (CD) pathogenesis. More specifically, diet has proven to be able to shape gut microbiota composition and thus is suspected to play a significant role in inflammatory bowel disease (IBD) pathogenesis. Moreover, poor nutritional status and growth retardation, arising from several factors such as reduced dietary intake or nutrient leakage from the gastrointestinal tract, represent the hallmarks of pediatric CD. For these reasons, multiple research lines have recently focused on the utilization of dietary therapies for the management of CD, aiming to target concurrently mucosal inflammation, intestinal dysbiosis and optimization of nutritional status. The forerunner of such interventions is represented by exclusive enteral nutrition (EEN), a robustly supported nutritional therapy; however, it is burdened by monotony and low tolerance in the long term. Novel dietary interventions, such as Crohn's Disease Exclusion Diet or Crohn's Disease treatment with eating, have shown their efficacy in the induction of remission in pediatric patients with CD. The aim of the present narrative review is to provide a synopsis of the available nutritional strategies in the management of pediatric CD and to discuss their application in the dietary management of these patients.
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Affiliation(s)
- Luca Scarallo
- Gastroenterology and Nutrition Unit, Meyer Children’s Hospital, 50139 Florence, Italy;
| | - Paolo Lionetti
- Gastroenterology and Nutrition Unit, Meyer Children’s Hospital, 50139 Florence, Italy;
- Department NEUROFARBA, University of Florence, 50139 Florence, Italy
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Su Q, Liu Q. Factors Affecting Gut Microbiome in Daily Diet. Front Nutr 2021; 8:644138. [PMID: 34041257 PMCID: PMC8141808 DOI: 10.3389/fnut.2021.644138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 04/16/2021] [Indexed: 12/13/2022] Open
Abstract
There is a growing recognition that a good diet can help people maintain mental and physical health, while a bad one will cause the disorder of body function, and even lead to several diseases. A lot of attentions have been devoted to analyze every possible health-related factor in the daily diet, including food ingredients, additives, and cooking process. With the support of high-throughput sequencing technology, there is accumulating evidence gradually clarifying that most of these factors are mainly through the interactions with gut microbiome to trigger downstream effects. The gut microbiome may be able to act as a very sensitive mirror in response to human daily diet. A complex network of interactions among diet, gut microbiome, and health has been gradually depicted, but it is rarely discussed from a more comprehensive perspective. To this end, this review summarized the latest updates in diet-gut microbiome interactions, analyzed most identified factors involved in this process, showed the possibility of maintaining health or alleviating diseases by diet intervention, aiming to help people choose a suitable recipe more accurately.
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Affiliation(s)
| | - Qin Liu
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
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Food and Food Groups in Inflammatory Bowel Disease (IBD): The Design of the Groningen Anti-Inflammatory Diet (GrAID). Nutrients 2021; 13:nu13041067. [PMID: 33806061 PMCID: PMC8064481 DOI: 10.3390/nu13041067] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 12/19/2022] Open
Abstract
Diet plays a pivotal role in the onset and course of inflammatory bowel disease (IBD). Patients are keen to know what to eat to reduce symptoms and flares, but dietary guidelines are lacking. To advice patients, an overview of the current evidence on food (group) level is needed. This narrative review studies the effects of food (groups) on the onset and course of IBD and if not available the effects in healthy subjects or animal and in vitro IBD models. Based on this evidence the Groningen anti-inflammatory diet (GrAID) was designed and compared on food (group) level to other existing IBD diets. Although on several foods conflicting results were found, this review provides patients a good overview. Based on this evidence, the GrAID consists of lean meat, eggs, fish, plain dairy (such as milk, yoghurt, kefir and hard cheeses), fruit, vegetables, legumes, wheat, coffee, tea and honey. Red meat, other dairy products and sugar should be limited. Canned and processed foods, alcohol and sweetened beverages should be avoided. This comprehensive review focuses on anti-inflammatory properties of foods providing IBD patients with the best evidence on which foods they should eat or avoid to reduce flares. This was used to design the GrAID.
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Naimi S, Viennois E, Gewirtz AT, Chassaing B. Direct impact of commonly used dietary emulsifiers on human gut microbiota. MICROBIOME 2021; 9:66. [PMID: 33752754 PMCID: PMC7986288 DOI: 10.1186/s40168-020-00996-6] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 12/29/2020] [Indexed: 05/30/2023]
Abstract
BACKGROUND Epidemiologic evidence and animal studies implicate dietary emulsifiers in contributing to the increased prevalence of diseases associated with intestinal inflammation, including inflammatory bowel diseases and metabolic syndrome. Two synthetic emulsifiers in particular, carboxymethylcellulose and polysorbate 80, profoundly impact intestinal microbiota in a manner that promotes gut inflammation and associated disease states. In contrast, the extent to which other food additives with emulsifying properties might impact intestinal microbiota composition and function is not yet known. METHODS To help fill this knowledge gap, we examined here the extent to which a human microbiota, maintained ex vivo in the MiniBioReactor Array model, was impacted by 20 different commonly used dietary emulsifiers. Microbiota density, composition, gene expression, and pro-inflammatory potential (bioactive lipopolysaccharide and flagellin) were measured daily. RESULTS In accordance with previous studies, both carboxymethylcellulose and polysorbate 80 induced a lasting seemingly detrimental impact on microbiota composition and function. While many of the other 18 additives tested had impacts of similar extent, some, such as lecithin, did not significantly impact microbiota in this model. Particularly stark detrimental impacts were observed in response to various carrageenans and gums, which altered microbiota density, composition, and expression of pro-inflammatory molecules. CONCLUSIONS These results indicate that numerous, but not all, commonly used emulsifiers can directly alter gut microbiota in a manner expected to promote intestinal inflammation. Moreover, these data suggest that clinical trials are needed to reduce the usage of the most detrimental compounds in favor of the use of emulsifying agents with no or low impact on the microbiota. Video abstract.
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Affiliation(s)
- Sabrine Naimi
- INSERM U1016, team "Mucosal microbiota in chronic inflammatory diseases", CNRS UMR 8104, Université de Paris, Paris, France
| | - Emilie Viennois
- INSERM, U1149, Center of Research on Inflammation, Université de Paris, Paris, France
| | - Andrew T Gewirtz
- Institute for Biomedical Sciences, Center for Inflammation, Immunity and Infection, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA
| | - Benoit Chassaing
- INSERM U1016, team "Mucosal microbiota in chronic inflammatory diseases", CNRS UMR 8104, Université de Paris, Paris, France.
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Cao Y, Liu J, Zhu W, Qin N, Ren X, Zhu B, Xia X. Impact of dietary components on enteric infectious disease. Crit Rev Food Sci Nutr 2021; 62:4010-4035. [PMID: 33455435 DOI: 10.1080/10408398.2021.1871587] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Diets impact host health in multiple ways and an unbalanced diet could contribute to the initiation or progression of a variety of diseases. Although a wealth of information exists on the connections between diet and chronic metabolic diseases such as cardiovascular disease, diabetes mellitus, etc., how diet influences enteric infectious disease still remain underexplored. The review summarizes the current findings on the link between various dietary components and diverse enteric infectious diseases. Dietary ingredients discussed include macronutrients (carbohydrates, lipids, proteins), micronutrients (vitamins, minerals), and other dietary ingredients (phytonutrients and probiotic supplements). We first describe the importance of enteric infectious diseases and the direct and indirect relationship between diet and enteric infectious diseases. Then we discuss the effects of different dietary components on the susceptibility to or progression of enteric infectious disease. Finally, we delineate current knowledge gap and highlighted future research directions. The literature review revealed that different dietary components affect host resistance to enteric infections through a variety of mechanisms. Dietary components may directly inhibit or bind to enteric pathogens, or indirectly influence enteric infections through modulating immune function and gut microbiota. Elucidating the unique repercussions of different diets on enteric infections in this review may help provide dietary guidelines or design dietary interventions to prevent or alleviate enteric infectious diseases.
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Affiliation(s)
- Yu Cao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, China
| | - Jiaxiu Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, China
| | - Wenxiu Zhu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, China
| | - Ningbo Qin
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, China
| | - Xiaomeng Ren
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, China
| | - Beiwei Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, China
| | - Xiaodong Xia
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, China
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Wark G, Samocha-Bonet D, Ghaly S, Danta M. The Role of Diet in the Pathogenesis and Management of Inflammatory Bowel Disease: A Review. Nutrients 2020; 13:nu13010135. [PMID: 33396537 PMCID: PMC7823614 DOI: 10.3390/nu13010135] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/21/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023] Open
Abstract
Inflammatory bowel diseases, which include ulcerative colitis and Crohn’s disease, are chronic relapsing and remitting inflammatory diseases of the gastrointestinal tract that are increasing in prevalence and incidence globally. They are associated with significant morbidity, reduced quality of life to individual sufferers and are an increasing burden on society through direct and indirect costs. Current treatment strategies rely on immunosuppression, which, while effective, is associated with adverse events. Epidemiological evidence suggests that diet impacts the risk of developing IBD and modulates disease activity. Using diet as a therapeutic option is attractive to patients and clinicians alike due to its availability, low cost and few side effects. Diet may influence IBD risk and disease behaviour through several mechanisms. Firstly, some components of the diet influence microbiota structure and function with downstream effects on immune activity. Secondly, dietary components act to alter the structure and permeability of the mucosal barrier, and lastly dietary elements may have direct interactions with components of the immune response. This review will summarise the mechanisms of diet–microbial–immune system interaction, outline key studies examining associations between diet and IBD and evidence demonstrating the impact of diet on disease control. Finally, this review will outline current prescribed dietary therapies for active CD.
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Affiliation(s)
- Gabrielle Wark
- St Vincent’s Clinical School, UNSW, Sydney, NSW 2052, Australia; (G.W.); (D.S.-B.); (S.G.)
- Department of Gastroenterology and Hepatology, St Vincent’s Hospital, Sydney, SW 2010, Australia
| | - Dorit Samocha-Bonet
- St Vincent’s Clinical School, UNSW, Sydney, NSW 2052, Australia; (G.W.); (D.S.-B.); (S.G.)
- Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Simon Ghaly
- St Vincent’s Clinical School, UNSW, Sydney, NSW 2052, Australia; (G.W.); (D.S.-B.); (S.G.)
- Department of Gastroenterology and Hepatology, St Vincent’s Hospital, Sydney, SW 2010, Australia
| | - Mark Danta
- St Vincent’s Clinical School, UNSW, Sydney, NSW 2052, Australia; (G.W.); (D.S.-B.); (S.G.)
- Department of Gastroenterology and Hepatology, St Vincent’s Hospital, Sydney, SW 2010, Australia
- Correspondence:
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Viennois E, Bretin A, Dubé PE, Maue AC, Dauriat CJG, Barnich N, Gewirtz AT, Chassaing B. Dietary Emulsifiers Directly Impact Adherent-Invasive E. coli Gene Expression to Drive Chronic Intestinal Inflammation. Cell Rep 2020; 33:108229. [PMID: 33027647 PMCID: PMC7539532 DOI: 10.1016/j.celrep.2020.108229] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/30/2020] [Accepted: 09/14/2020] [Indexed: 02/07/2023] Open
Abstract
Dietary emulsifiers carboxymethylcellulose (CMC) and polysorbate-80 (P80) disturb gut microbiota, promoting chronic inflammation. Mice with minimal microbiota are protected against emulsifiers’ effects, leading us to hypothesize that these compounds might provoke select pathobionts to promote inflammation. Gnotobiotic wild-type (WT) and interleukin-10 (IL-10)−/− mice were colonized with Crohn’s-disease-associated adherent-invasive E. coli (AIEC) and subsequently administered CMC or P80. AIEC colonization of GF and altered Schaedler flora (ASF) mice results in chronic intestinal inflammation and metabolism dysregulations when consuming the emulsifier. In IL-10−/− mice, AIEC mono-colonization results in severe intestinal inflammation in response to emulsifiers. Exposure of AIEC to emulsifiers in vitro increases its motility and ability to adhere to intestinal epithelial cells. Transcriptomic analysis reveals that emulsifiers directly induce expression of clusters of genes that mediate AIEC virulence and promotion of inflammation. To conclude, emulsifiers promote virulence and encroachment of pathobionts, providing a means by which these compounds may drive inflammation in hosts carrying such bacteria. Dietary emulsifiers alter the intestinal microbiota, promoting chronic inflammation Select pathobionts are required to mediate the detrimental effects of emulsifiers Emulsifiers directly induce the expression of bacterial virulence genes Microbiota-based dietary intervention appears warranted
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Affiliation(s)
- Emilie Viennois
- INSERM, U1149, Center of Research on Inflammation, Université de Paris, Paris, France; Institute for Biomedical Sciences, Center for Inflammation, Immunity and Infection, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA
| | - Alexis Bretin
- Institute for Biomedical Sciences, Center for Inflammation, Immunity and Infection, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA
| | | | | | - Charlène J G Dauriat
- INSERM U1016, team "Mucosal microbiota in chronic inflammatory diseases", CNRS UMR 8104, Université de Paris, Paris, France
| | - Nicolas Barnich
- Université Clermont Auvergne/Inserm U1071 USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Andrew T Gewirtz
- Institute for Biomedical Sciences, Center for Inflammation, Immunity and Infection, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA
| | - Benoit Chassaing
- Institute for Biomedical Sciences, Center for Inflammation, Immunity and Infection, Digestive Disease Research Group, Georgia State University, Atlanta, GA, USA; INSERM U1016, team "Mucosal microbiota in chronic inflammatory diseases", CNRS UMR 8104, Université de Paris, Paris, France; Neuroscience Institute, Georgia State University, Atlanta, GA, USA.
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30
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Burrin D, Sangild PT, Stoll B, Thymann T, Buddington R, Marini J, Olutoye O, Shulman RJ. Translational Advances in Pediatric Nutrition and Gastroenterology: New Insights from Pig Models. Annu Rev Anim Biosci 2020; 8:321-354. [PMID: 32069436 DOI: 10.1146/annurev-animal-020518-115142] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Pigs are increasingly important animals for modeling human pediatric nutrition and gastroenterology and complementing mechanistic studies in rodents. The comparative advantages in size and physiology of the neonatal pig have led to new translational and clinically relevant models of important diseases of the gastrointestinal tract and liver in premature infants. Studies in pigs have established the essential roles of prematurity, microbial colonization, and enteral nutrition in the pathogenesis of necrotizing enterocolitis. Studies in neonatal pigs have demonstrated the intestinal trophic effects of akey gut hormone, glucagon-like peptide 2 (GLP-2), and its role in the intestinal adaptation process and efficacy in the treatment of short bowel syndrome. Further, pigs have been instrumental in elucidating the physiology of parenteral nutrition-associated liver disease and the means by which phytosterols, fibroblast growth factor 19, and a new generation of lipid emulsions may modify disease. The premature pig will continue to be a valuable model in the development of optimal infant diets (donor human milk, colostrum), specific milk bioactives (arginine, growth factors), gut microbiota modifiers (pre-, pro-, and antibiotics), pharmaceutical drugs (GLP-2 analogs, FXR agonists), and novel diagnostic tools (near-infrared spectroscopy) to prevent and treat these pediatric diseases.
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Affiliation(s)
- Douglas Burrin
- USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, Baylor College of Medicine, Houston, Texas 77030, USA;
| | - Per Torp Sangild
- Comparative Pediatrics and Nutrition, University of Copenhagen, DK-1870 Frederiksberg C., Copenhagen, Denmark
| | - Barbara Stoll
- USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, Baylor College of Medicine, Houston, Texas 77030, USA;
| | - Thomas Thymann
- Comparative Pediatrics and Nutrition, University of Copenhagen, DK-1870 Frederiksberg C., Copenhagen, Denmark
| | - Randal Buddington
- College of Nursing, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA
| | - Juan Marini
- USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, Baylor College of Medicine, Houston, Texas 77030, USA; .,Department of Pediatrics, Section of Critical Care Medicine, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Oluyinka Olutoye
- Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Robert J Shulman
- USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, Baylor College of Medicine, Houston, Texas 77030, USA;
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Levine A, Rhodes JM, Lindsay JO, Abreu MT, Kamm MA, Gibson PR, Gasche C, Silverberg MS, Mahadevan U, Boneh RS, Wine E, Damas OM, Syme G, Trakman GL, Yao CK, Stockhamer S, Hammami MB, Garces LC, Rogler G, Koutroubakis IE, Ananthakrishnan AN, McKeever L, Lewis JD. Dietary Guidance From the International Organization for the Study of Inflammatory Bowel Diseases. Clin Gastroenterol Hepatol 2020; 18:1381-1392. [PMID: 32068150 DOI: 10.1016/j.cgh.2020.01.046] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 12/21/2019] [Accepted: 01/24/2020] [Indexed: 02/07/2023]
Abstract
Recent evidence points to a plausible role of diet and the microbiome in the pathogenesis of both Crohn's disease (CD) and Ulcerative Colitis (UC). Dietary therapies based on exclusion of table foods and replacement with nutritional formulas and/or a combination of nutritional formulas and specific table foods may induce remission in CD. In UC, specific dietary components have also been associated with flare of disease. While evidence of varying quality has identified potential harmful or beneficial dietary components, physicians and patients at the present time do not have guidance as to which foods are safe, may be protective or deleterious for these diseases. The current document has been compiled by the nutrition cluster of the International Organization for the Study of Inflammatory Bowel Diseases (IOIBD) based on the best current evidence to provide expert opinion regarding specific dietary components, food groups and food additives that may be prudent to increase or decrease in the diet of patients with inflammatory bowel diseases to control and prevent relapse of inflammatory bowel diseases.
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Affiliation(s)
- Arie Levine
- Pediatric IBD Center, Wolfson Medical Center Holon, Tel Aviv University, Tel Aviv, Israel
| | - Jonathan M Rhodes
- Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - James O Lindsay
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine, Queen Mary University of London, London, United Kingdom
| | - Maria T Abreu
- Division of Gastroenterology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Michael A Kamm
- St Vincent's Hospital and University of Melbourne, Melbourne, Australia
| | - Peter R Gibson
- Monash University and Alfred Health, Melbourne, Australia
| | | | - Mark S Silverberg
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | - Uma Mahadevan
- University of California, San Francisco, San Francisco, California
| | - Rotem Sigall Boneh
- Pediatric IBD Center, Wolfson Medical Center Holon, Tel Aviv University, Tel Aviv, Israel
| | - Eyton Wine
- Department of Pediatrics, University of Alberta, Alberta, Canada; Department of Physiology, University of Alberta, Alberta, Canada
| | - Oriana M Damas
- Division of Gastroenterology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | - Graeme Syme
- The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Gina L Trakman
- St Vincent's Hospital and University of Melbourne, Melbourne, Australia
| | - Chu Kion Yao
- Monash University and Alfred Health, Melbourne, Australia
| | - Stefanie Stockhamer
- Zane Cohen Centre for Digestive Diseases, Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | | | - Luis C Garces
- Division of Gastroenterology, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida
| | | | | | | | - Liam McKeever
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - James D Lewis
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
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Abstract
PURPOSE OF REVIEW Recent knowledge teaches us that food is one of the most important environmental factors affecting our health from disease prevention to cause. Food is one of the key players in the normal gut microenvironment, affecting microbial composition, function, gut barrier and host immunity. This review aims to summarize the current data on food components as regulators of intestinal inflammation, with particular focus on the inflammatory bowel diseases (IBDs). RECENT FINDINGS We summarize our current understanding on nutrition as possible cause and treatment for IBD and concentrate on several food components that have an anti-inflammatory role on the intestine (vitamin D, butyrate, resveratrol, curcumin). SUMMARY The proven efficacy of exclusive enteral nutrition to induce remission in children (and recently adults) with Crohn's disease has totally changed the clinical practice. Food components that have an anti-inflammatory role on the intestine (vitamin D, butyrate, resveratrol, curcumin) may now serve as an adjuvant to treatment. While our understanding has expanded in recent years, there remain many aspects of the interactions between nutrition and the gut that remain to be elucidated. Further focused research may lead to advances in understanding of disease pathogenesis and also result in new improved therapeutic interventions.
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Kommers MJ, Silva Rodrigues RA, Miyajima F, Zavala Zavala AA, Ultramari VRLM, Fett WCR, Balogun SO, de Oliveira RG, Fett CA. Effects of Probiotic Use on Quality of Life and Physical Activity in Constipated Female University Students: A Randomized, Double-Blind Placebo-Controlled Study. J Altern Complement Med 2019; 25:1163-1171. [PMID: 31657615 DOI: 10.1089/acm.2019.0134] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Objectives: To evaluate the effect of a probiotic supplement containing two genera and five species of bacteria versus placebo on the quality of life (QoL) in female university students with intestinal constipation (IC). Design: A randomized, double-blind placebo-controlled study was conducted on female university students in a single study center. Settings/Location: Two phases of interventions were carried out, the pilot and main study. All participants were female students of Federal University of Mato Grosso, Brazil. Subjects: Female students whose ages ranged from 20 to 40 years and self-reported to be suffering from IC based on a questionnaire containing Rome III criteria were included. Interventions: Interventions occurred during a period of 30 days in the pilot phase (n = 32) and 15 days in the main study phase (n = 63). The subjects were numbered and randomly divided into experimental probiotic and placebo control groups. Therefore, neither the participants nor the researchers were aware of the allocations of the treatment groups. Outcome measures: The sociodemographic, Rome III, Patient Assessment of Constipation Quality of Life (PAC-QoL) and International Physical Activity questionnaires, and anthropometric measures were utilized. The relative risk (RR) treatment effect, absolute risk reduction (ARR), RR reduction, number needed to treat (NNT), and odds ratio were calculated. Results: Improvement in the QoL (ARR = 14% and p < 0.01) and satisfaction (ARR = 44% and p < 0.01) according to the PAC-QoL questionnaire was observed in the experimental group compared with the control group. For probiotic supplementation, an NNT = 7 was obtained. This implies that for every seven constipated women treated, a worsening in the QoL is prevented in one. An NNT = 1 was obtained concerning satisfaction in the same group of women with respect to the treatment. No clinically significant observations related to the safety of the product were reported. The authors did not detect the effect of exercise intensity on the QoL of participants. Conclusion: The probiotic supplementation had a positive impact on the QoL of constipated female university students.
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Affiliation(s)
- Michelle Jalousie Kommers
- School of Physical Education (Post-Graduate Program), Federal University of Mato Grosso, Cuiabá, Brazil
| | | | - Fábio Miyajima
- Department of Science, Technology, Production and Innovation in Public Health, Fundação Oswaldo Cruz (Fiocruz), Fortaleza, Brazil
| | | | | | | | | | | | - Carlos Alexandre Fett
- School of Physical Education (Post-Graduate Program), Federal University of Mato Grosso, Cuiabá, Brazil
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Laudisi F, Stolfi C, Monteleone G. Impact of Food Additives on Gut Homeostasis. Nutrients 2019; 11:nu11102334. [PMID: 31581570 PMCID: PMC6835893 DOI: 10.3390/nu11102334] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 09/26/2019] [Accepted: 09/28/2019] [Indexed: 12/22/2022] Open
Abstract
In physiological conditions, the gut is heavily infiltrated with various subsets of inflammatory cells, whose activity is tightly controlled by counter-regulatory mechanisms. Defects in such mechanisms can favour the development of chronic intestinal disorders, such as Crohn’s disease (CD) and ulcerative colitis (UC), the principal forms of inflammatory bowel diseases (IBD) in humans, as well as systemic disorders. Over the last years, the frequency of intestinal and systemic immune-inflammatory disorders has increased in previously low incidence areas, likely due to the Westernization of lifestyles, including dietary habits. The Western diet is characterized by high consumption of proteins, saturated fats and sweets, as well as by a broad use of food additives (e.g., emulsifiers, bulking agents), which are used to preserve and enhance food quality. Accumulating evidence suggests that food additives can perturb gut homeostasis, thereby contributing to promote tissue-damaging inflammatory responses. For instance, mice given the emulsifiers carboxymethylcellulose and polysorbate 80 develop dysbiosis with overgrowth of mucus-degrading bacteria. Such an effect triggers colitis in animals deficient in either interleukin-10, a cytokine exerting anti-inflammatory and regulatory functions, or Toll-like receptor 5, a receptor recognizing the bacterial flagellin. Similarly, the polysaccharide maltodextrin induces endoplasmic reticulum stress in intestinal goblet cells, thereby impairing mucus release and increasing host susceptibility to colitis. In this review, we report and discuss the current knowledge about the impact of food additives on gut homeostasis and their potential contribution to the development of inflammatory disorders.
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Affiliation(s)
- Federica Laudisi
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Carmine Stolfi
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Giovanni Monteleone
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy.
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Inflammatory Bowel Diseases and Food Additives: To Add Fuel on the Flames! Nutrients 2019; 11:nu11051111. [PMID: 31109097 PMCID: PMC6567822 DOI: 10.3390/nu11051111] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 12/16/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) develop in genetically predisposed individuals in response to environmental factors. IBDs are concomitant conditions of industrialized societies, and diet is a potential culprit. Consumption of ultra-processed food has increased over the last decade in industrialized countries, and epidemiological studies have found associations between ultra-processed food consumption and chronic diseases. Further studies are now required to identify the potential culprit in ultra-processed food, such as a poor nutritional composition or the presence of food additives. In our review, we will focus on food additives, i.e., substances from packaging in contact with food, and compounds formed during production, processing, and storage. A literature search using PubMed from inception to January 2019 was performed to identify relevant studies on diet and/or food additive and their role in IBDs. Manuscripts published in English from basic science, epidemiological studies, or clinical trials were selected and reviewed. We found numerous experimental studies highlighting the key role of food additives in IBD exacerbation but epidemiological studies on food additives on IBD risk are still limited. As diet is a modifiable environmental risk factor, this may offer a scientific rationale for providing dietary advice for IBD patients.
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Arnold AR, Chassaing B. Maltodextrin, Modern Stressor of the Intestinal Environment. Cell Mol Gastroenterol Hepatol 2018; 7:475-476. [PMID: 30827413 PMCID: PMC6409436 DOI: 10.1016/j.jcmgh.2018.09.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 09/26/2018] [Indexed: 12/10/2022]
Affiliation(s)
- Amanda R Arnold
- Neuroscience Institute, Georgia State University, Atlanta, Georgia
| | - Benoit Chassaing
- Neuroscience Institute, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia.
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Laudisi F, Di Fusco D, Dinallo V, Stolfi C, Di Grazia A, Marafini I, Colantoni A, Ortenzi A, Alteri C, Guerrieri F, Mavilio M, Ceccherini-Silberstein F, Federici M, MacDonald TT, Monteleone I, Monteleone G. The Food Additive Maltodextrin Promotes Endoplasmic Reticulum Stress-Driven Mucus Depletion and Exacerbates Intestinal Inflammation. Cell Mol Gastroenterol Hepatol 2018; 7:457-473. [PMID: 30765332 PMCID: PMC6369223 DOI: 10.1016/j.jcmgh.2018.09.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 08/27/2018] [Accepted: 09/04/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Food additives, such as emulsifiers, stabilizers, or bulking agents, are present in the Western diet and their consumption is increasing. However, little is known about their potential effects on intestinal homeostasis. In this study we examined the effect of some of these food additives on gut inflammation. METHODS Mice were given drinking water containing maltodextrin (MDX), propylene glycol, or animal gelatin, and then challenged with dextran sulfate sodium or indomethacin. In parallel, mice fed a MDX-enriched diet were given the endoplasmic reticulum (ER) stress inhibitor tauroursodeoxycholic acid (TUDCA). Transcriptomic analysis, real-time polymerase chain reaction, mucin-2 expression, phosphorylated p38 mitogen-activated protein (MAP) kinase quantification, and H&E staining was performed on colonic tissues. Mucosa-associated microbiota composition was characterized by 16S ribosomal RNA sequencing. For the in vitro experiments, murine intestinal crypts and the human mucus-secreting HT29-methotrexate treated cell line were stimulated with MDX in the presence or absence of TUDCA or a p38 MAP kinase inhibitor. RESULTS Diets enriched in MDX, but not propylene glycol or animal gelatin, exacerbated intestinal inflammation in both models. Analysis of the mechanisms underlying the detrimental effect of MDX showed up-regulation of inositol requiring protein 1β, a sensor of ER stress, in goblet cells, and a reduction of mucin-2 expression with no significant change in mucosa-associated microbiota. Stimulation of murine intestinal crypts and HT29-methotrexate treated cell line cells with MDX induced inositol requiring protein 1β via a p38 MAP kinase-dependent mechanism. Treatment of mice with TUDCA prevented mucin-2 depletion and attenuated colitis in MDX-fed mice. CONCLUSIONS MDX increases ER stress in gut epithelial cells with the downstream effect of reducing mucus production and enhancing colitis susceptibility.
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Affiliation(s)
- Federica Laudisi
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Davide Di Fusco
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Vincenzo Dinallo
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Carmine Stolfi
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Antonio Di Grazia
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Irene Marafini
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Alfredo Colantoni
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Angela Ortenzi
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Claudia Alteri
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Francesca Guerrieri
- Center for Life NanoScience at Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Maria Mavilio
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Massimo Federici
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy,Center for Atherosclerosis, Policlinico Tor Vergata, Rome, Italy
| | - Thomas Thornton MacDonald
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Whitechapel, London, United Kingdom
| | - Ivan Monteleone
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Giovanni Monteleone
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy,Correspondence Address correspondence to: Giovanni Monteleone, MD, Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy. fax: (39) 06-72596391.
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Levine A, Sigall Boneh R, Wine E. Evolving role of diet in the pathogenesis and treatment of inflammatory bowel diseases. Gut 2018; 67:1726-1738. [PMID: 29777041 DOI: 10.1136/gutjnl-2017-315866] [Citation(s) in RCA: 223] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 12/12/2022]
Abstract
Recent advances in basic and clinical science over the last 3 years have dramatically altered our appreciation of the role of diet in inflammatory bowel diseases (IBD). The marked increase in incidence of these diseases along with the important role of non-genetic susceptibility among patients with IBD has highlighted that these diseases have a strong environmental component. Progress in the field of microbiome and IBD has demonstrated that microbiome appears to play an important role in pathogenesis, and that diet may in turn impact the composition and functionality of the microbiome. Uncontrolled clinical studies have demonstrated that various dietary therapies such as exclusive enteral nutrition and newly developed exclusion diets might be potent tools for induction of remission at disease onset, for patients failing biologic therapy, as a treatment for disease complications and in reducing the need for surgery. We review these advances from bench to bedside, along with the need for better clinical trials to support these interventions.
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Affiliation(s)
- Arie Levine
- Pediatric Gastroenterology and Nutrition Unit, Edith Wolfson Medical Center, Holon, Israel.,Tel Aviv University, Tel Aviv, Israel
| | - Rotem Sigall Boneh
- Pediatric Gastroenterology and Nutrition Unit, Edith Wolfson Medical Center, Holon, Israel.,Tel Aviv University, Tel Aviv, Israel
| | - Eytan Wine
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
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39
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Sun J, Li Y, Pan X, Nguyen DN, Brunse A, Bojesen AM, Rudloff S, Mortensen MS, Burrin DG, Sangild PT. Human Milk Fortification with Bovine Colostrum Is Superior to Formula-Based Fortifiers to Prevent Gut Dysfunction, Necrotizing Enterocolitis, and Systemic Infection in Preterm Pigs. JPEN J Parenter Enteral Nutr 2018; 43:252-262. [PMID: 29992630 DOI: 10.1002/jpen.1422] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND Fortification of donor human milk (DHM) is required for optimal growth of very preterm infants, but there are concerns of more gut dysfunction and necrotizing enterocolitis (NEC) when using formula-based fortifiers (FFs), especially soon after birth. Intact bovine colostrum (BC) is rich in nutrients and bioactive factors, and protects against NEC in preterm pigs. We hypothesized that fortification of DHM with BC is superior to FFs to prevent gut dysfunction and infections when provided shortly after preterm birth. METHODS Two FF products, Enfamil (ENF; intact protein, vegetable oil) and PreNAN+Nutrilon (NAN; extensively hydrolyzed protein, maltodextrin), were compared with BC as fortifier to DHM fed to preterm pigs for 5 days. RESULTS Relative to the DHM+BC group, DHM+FF groups had higher diarrhea score and lower hexose uptake and lactase activity, and specifically the DHM+NAN group showed higher gut permeability, NEC score, more mucosa-adherent bacteria with altered gut microbiota structure (ie, lower diversity, increased Enterococcus, decreased Staphylococcus abundance). Both DHM+FF groups showed higher expression of intestinal cytokine and inflammation-related genes, more gut-derived bacteria in the bone marrow, lower density of mucin-containing goblet cells, and slightly higher colon lactate, stomach pH and acetate, and blood neutrophil-to-lymphocyte levels than the DHM+BC group. CONCLUSIONS Used as a fortifier to DHM, BC is superior to FFs to support gut function, nutrient absorption, and bacterial defense mechanisms in preterm pigs. It is important to optimize the composition of nutrient fortifiers for preterm infants fed human milk.
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Affiliation(s)
- Jing Sun
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Yanqi Li
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Xiaoyu Pan
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Duc Ninh Nguyen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anders Brunse
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anders M Bojesen
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Silvia Rudloff
- Institute of Nutritional Science, Justus-Liebig-University Giessen , Giessen, Germany
| | | | - Douglas G Burrin
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Per T Sangild
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Pediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen, Denmark
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40
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Nickerson KP, Senger S, Zhang Y, Lima R, Patel S, Ingano L, Flavahan WA, Kumar DKV, Fraser CM, Faherty CS, Sztein MB, Fiorentino M, Fasano A. Salmonella Typhi Colonization Provokes Extensive Transcriptional Changes Aimed at Evading Host Mucosal Immune Defense During Early Infection of Human Intestinal Tissue. EBioMedicine 2018; 31:92-109. [PMID: 29735417 PMCID: PMC6013756 DOI: 10.1016/j.ebiom.2018.04.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 04/02/2018] [Accepted: 04/05/2018] [Indexed: 12/29/2022] Open
Abstract
Commensal microorganisms influence a variety of host functions in the gut, including immune response, glucose homeostasis, metabolic pathways and oxidative stress, among others. This study describes how Salmonella Typhi, the pathogen responsible for typhoid fever, uses similar strategies to escape immune defense responses and survive within its human host. To elucidate the early mechanisms of typhoid fever, we performed studies using healthy human intestinal tissue samples and "mini-guts," organoids grown from intestinal tissue taken from biopsy specimens. We analyzed gene expression changes in human intestinal specimens and bacterial cells both separately and after colonization. Our results showed mechanistic strategies that S. Typhi uses to rearrange the cellular machinery of the host cytoskeleton to successfully invade the intestinal epithelium, promote polarized cytokine release and evade immune system activation by downregulating genes involved in antigen sampling and presentation during infection. This work adds novel information regarding S. Typhi infection pathogenesis in humans, by replicating work shown in traditional cell models, and providing new data that can be applied to future vaccine development strategies.
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Affiliation(s)
- K P Nickerson
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States; Department of Pediatrics, Harvard Medical School, Harvard University, Boston, MA, United States.
| | - S Senger
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States; Department of Pediatrics, Harvard Medical School, Harvard University, Boston, MA, United States
| | - Y Zhang
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, United States
| | - R Lima
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States
| | - S Patel
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States
| | - L Ingano
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States
| | - W A Flavahan
- Department of Pathology, Massachusetts General Hospital, Boston, MA, United States
| | - D K V Kumar
- Department for the Neuroscience of Genetics and Aging, Massachusetts General Hospital, Boston, MA, United States
| | - C M Fraser
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, United States
| | - C S Faherty
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States; Department of Pediatrics, Harvard Medical School, Harvard University, Boston, MA, United States
| | - M B Sztein
- Center for Vaccine Development, Department of Pediatrics, University of Maryland, Baltimore, MD, United States
| | - M Fiorentino
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States; Department of Pediatrics, Harvard Medical School, Harvard University, Boston, MA, United States
| | - A Fasano
- Department of Pediatric Gastroenterology, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA, United States; Department of Pediatrics, Harvard Medical School, Harvard University, Boston, MA, United States.
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41
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Rodriguez-Palacios A, Harding A, Menghini P, Himmelman C, Retuerto M, Nickerson KP, Lam M, Croniger CM, McLean MH, Durum SK, Pizarro TT, Ghannoum MA, Ilic S, McDonald C, Cominelli F. The Artificial Sweetener Splenda Promotes Gut Proteobacteria, Dysbiosis, and Myeloperoxidase Reactivity in Crohn's Disease-Like Ileitis. Inflamm Bowel Dis 2018; 24:1005-1020. [PMID: 29554272 PMCID: PMC5950546 DOI: 10.1093/ibd/izy060] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 12/16/2022]
Abstract
Background Epidemiological studies indicate that the use of artificial sweeteners doubles the risk for Crohn's disease (CD). Herein, we experimentally quantified the impact of 6-week supplementation with a commercial sweetener (Splenda; ingredients sucralose maltodextrin, 1:99, w/w) on both the severity of CD-like ileitis and the intestinal microbiome alterations using SAMP1/YitFc (SAMP) mice. Methods Metagenomic shotgun DNA sequencing was first used to characterize the microbiome of ileitis-prone SAMP mice. Then, 16S rRNA microbiome sequencing, quantitative polymerase chain reaction, fluorescent in situ hybridization (FISH), bacterial culture, stereomicroscopy, histology, and myeloperoxidase (MPO) activity analyses were then implemented to compare the microbiome and ileitis phenotype in SAMP with that of control ileitis-free AKR/J mice after Splenda supplementation. Results Metagenomics indicated that SAMP mice have a gut microbial phenotype rich in Bacteroidetes, and experiments showed that Helicobacteraceae did not have an exacerbating effect on ileitis. Splenda did not increase the severity of (stereomicroscopic/histological) ileitis; however, biochemically, ileal MPO activity was increased in SAMP treated with Splenda compared with nonsupplemented mice (P < 0.022) and healthy AKR mice. Splenda promoted dysbiosis with expansion of Proteobacteria in all mice, and E. coli overgrowth with increased bacterial infiltration into the ileal lamina propria of SAMP mice. FISH showed increase malX gene-carrying bacterial clusters in the ilea of supplemented SAMP (but not AKR) mice. Conclusions Splenda promoted gut Proteobacteria, dysbiosis, and biochemical MPO reactivity in a spontaneous model of (Bacteroidetes-rich) ileal CD. Our results indicate that although Splenda may promote parallel microbiome alterations in CD-prone and healthy hosts, this did not result in elevated MPO levels in healthy mice, only CD-prone mice. The consumption of sucralose/maltodextrin-containing foods might exacerbate MPO intestinal reactivity only in individuals with a pro-inflammatory predisposition, such as CD.
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Affiliation(s)
| | - Andrew Harding
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | - Paola Menghini
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | - Catherine Himmelman
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | - Mauricio Retuerto
- Center for Medical Mycology, Department of Dermatology, School of Medicine, Cleveland, Ohio
| | - Kourtney P Nickerson
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Minh Lam
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
| | | | - Mairi H McLean
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Scotland, UK
| | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Theresa T Pizarro
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, Ohio
| | - Mahmoud A Ghannoum
- Center for Medical Mycology, Department of Dermatology, School of Medicine, Cleveland, Ohio
| | - Sanja Ilic
- Department of Human Sciences and Human Nutrition, The Ohio State University, Columbus, Ohio
| | - Christine McDonald
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Fabio Cominelli
- Division of Gastroenterology and Liver Disease, Department of Medicine, School of Medicine, Cleveland, Ohio
- Digestive Health Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
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Nutrition in Pediatric Inflammatory Bowel Disease: A Position Paper on Behalf of the Porto Inflammatory Bowel Disease Group of the European Society of Pediatric Gastroenterology, Hepatology and Nutrition. J Pediatr Gastroenterol Nutr 2018; 66:687-708. [PMID: 29570147 DOI: 10.1097/mpg.0000000000001896] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS A growing body of evidence supports the need for detailed attention to nutrition and diet in children with inflammatory bowel disease (IBD). We aimed to define the steps in instituting dietary or nutritional management in light of the current evidence and to offer a useful and practical guide to physicians and dieticians involved in the care of pediatric IBD patients. METHODS A group of 20 experts in pediatric IBD participated in an iterative consensus process including 2 face-to-face meetings, following an open call to Nutrition Committee of the European Society of Pediatric Gastroenterology, Hepatology and Nutrition Porto, IBD Interest, and Nutrition Committee. A list of 41 predefined questions was addressed by working subgroups based on a systematic review of the literature. RESULTS A total of 53 formal recommendations and 47 practice points were endorsed with a consensus rate of at least 80% on the following topics: nutritional assessment; macronutrients needs; trace elements, minerals, and vitamins; nutrition as a primary therapy of pediatric IBD; probiotics and prebiotics; specific dietary restrictions; and dietary compounds and the risk of IBD. CONCLUSIONS This position paper represents a useful guide to help the clinicians in the management of nutrition issues in children with IBD.
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43
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Kessler SP, Obery DR, Nickerson KP, Petrey AC, McDonald C, de la Motte CA. Multifunctional Role of 35 Kilodalton Hyaluronan in Promoting Defense of the Intestinal Epithelium. J Histochem Cytochem 2018; 66:273-287. [PMID: 29290146 DOI: 10.1369/0022155417746775] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Intestinal epithelium plays a critical role in host defense against orally acquired pathogens. Dysregulation of this protective barrier is a primary driver of inflammatory bowel diseases (Crohn's and ulcerative colitis) and also infant gastrointestinal infections. Previously, our lab reported that hyaluronan (HA) isolated from human milk induces the expression of the antimicrobial peptide β-defensin in vivo and protects against Salmonella Typhimurium infection of epithelial cells in vitro. In addition, we demonstrated that commercially available 35 kDa size HA induces the expression of β-defensin, upregulates the expression of tight junction protein zonula occludens-1 (ZO-1), and attenuates murine Citrobacter rodentium infection in vivo. In this current study, we report that HA35 remains largely intact and biologically active during transit through the digestive tract where it directly induces β-defensin expression upon epithelial cell contact. We also demonstrate HA35 abrogation of murine Salmonella Typhimurium infection as well as downregulation of leaky tight junction protein claudin-2 expression. Taken together, we propose a dual role for HA in host innate immune defense at the epithelial cell surface, acting to induce antimicrobial peptide production and also block pathogen-induced leaky gut. HA35 is therefore a promising therapeutic in the defense against bacterially induced colitis in compromised adults and vulnerable newborns.
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Affiliation(s)
- Sean P Kessler
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Dana R Obery
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Kourtney P Nickerson
- Division of Pediatric Gastroenterology and Nutrition, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, Massachusetts.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Aaron C Petrey
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Christine McDonald
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Carol A de la Motte
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio
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44
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Marion-Letellier R, Savoye G, Ghosh S. IBD: In Food We Trust. J Crohns Colitis 2016; 10:1351-1361. [PMID: 27194533 DOI: 10.1093/ecco-jcc/jjw106] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/10/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Both science and patients associate diet with inflammatory bowel disease [IBD]. There is no doubt that links between IBD and diet are numerous, based on both epidemiological studies and experimental studies. However, scientific evidence to support dietary advice is currently lacking, and dietary counselling for IBD patients is often limited in clinical practice to the improvement of nutrient intake. This review aimed to focus on both patient's beliefs about and molecular mechanisms for crosstalk between nutrients and inflammation. METHODS A literature search using PubMed was performed to identify relevant studies on diet and/or nutrients and their role in IBD. Pubmed [from inception to January 20, 2016] was searched using the terms: 'Crohn', 'colitis',' intestinal epithelial cells', and a list of terms relating to diet or numerous specific nutrients. Terms associated with nutrients were individually tested in the context of IBD. Reference lists from studies selected were manually searched to identify further relevant reports. Manuscripts about diet in the context of IBD from basic science, epidemiological studies, or clinical trials were selected and reviewed. Only articles published in English were included. RESULTS Epidemiological studies highlight the key role of diet in IBD development, and many IBD patients report diet as a triggering factor in relapse of disease. In addition, we present research on the impact of nutrients on innate immunity. CONCLUSION Diet may offer an alternative approach to restoring deficient innate immunity in IBD, and this may be the scientific rationale for providing dietary counselling for IBD patients.
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Affiliation(s)
| | - Guillaume Savoye
- INSERM Unit UMR1073, Rouen University and Rouen University Hospital, Rouen cedex, France.,Department of Gastroenterology, Rouen University Hospital, Rouen cedex, France
| | - Subrata Ghosh
- Division of Gastroenterology, University of Calgary, Alberta, Canada
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45
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Mezoff EA, Hawkins JA, Ollberding NJ, Karns R, Morrow AL, Helmrath MA. The human milk oligosaccharide 2'-fucosyllactose augments the adaptive response to extensive intestinal. Am J Physiol Gastrointest Liver Physiol 2016; 310:G427-38. [PMID: 26702137 PMCID: PMC4796291 DOI: 10.1152/ajpgi.00305.2015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 12/22/2015] [Indexed: 01/31/2023]
Abstract
Intestinal resection resulting in short bowel syndrome (SBS) carries a heavy burden of long-term morbidity, mortality, and cost of care, which can be attenuated with strategies that improve intestinal adaptation. SBS infants fed human milk, compared with formula, have more rapid intestinal adaptation. We tested the hypothesis that the major noncaloric human milk oligosaccharide 2'-fucosyllactose (2'-FL) contributes to the adaptive response after intestinal resection. Using a previously described murine model of intestinal adaptation, we demonstrated increased weight gain from 21 to 56 days (P < 0.001) and crypt depth at 56 days (P < 0.0095) with 2'-FL supplementation after ileocecal resection. Furthermore, 2'-FL increased small bowel luminal content microbial alpha diversity following resection (P < 0.005) and stimulated a bloom in organisms of the genus Parabacteroides (log2-fold = 4.1, P = 0.035). Finally, transcriptional analysis of the intestine revealed enriched ontologies and pathways related to antimicrobial peptides, metabolism, and energy processing. We conclude that 2'-FL supplementation following ileocecal resection increases weight gain, energy availability through microbial community modulation, and histological changes consistent with improved adaptation.
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Affiliation(s)
- Ethan A. Mezoff
- 1Cincinnati Children's Hospital Medical Center, Division of Gastroenterology, Hepatology, and Nutrition;
| | - Jennifer A. Hawkins
- 2Cincinnati Children's Hospital Medical Center, Division of Pediatric General and Thoracic Surgery;
| | - Nicholas J. Ollberding
- 3Cincinnati Children's Hospital Medical Center, Division of Biostatistics and Epidemiology;
| | - Rebekah Karns
- 4Cincinnati Children's Hospital Medical Center, Division of Biomedical Informatics; and
| | - Ardythe L. Morrow
- 5Cincinnati Children's Hospital Medical Center, Division of Neonatology and Pulmonary Biology
| | - Michael A. Helmrath
- 2Cincinnati Children's Hospital Medical Center, Division of Pediatric General and Thoracic Surgery;
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46
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Power KA, Lepp D, Zarepoor L, Monk JM, Wu W, Tsao R, Liu R. Dietary flaxseed modulates the colonic microenvironment in healthy C57Bl/6 male mice which may alter susceptibility to gut-associated diseases. J Nutr Biochem 2015; 28:61-9. [PMID: 26878783 DOI: 10.1016/j.jnutbio.2015.09.028] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 09/28/2015] [Accepted: 09/30/2015] [Indexed: 12/25/2022]
Abstract
Understanding how dietary components alter the healthy baseline colonic microenvironment is important in determining their roles in influencing gut health and gut-associated diseases. Dietary flaxseed (FS) has demonstrated anti-colon cancer effects in numerous rodent models, however, exacerbated acute colonic mucosal injury and inflammation in a colitis model. This study investigates whether FS alters critical aspects of gut health in healthy unchallenged mice, which may help explain some of the divergent effects observed following different gut-associated disease challenges. Four-week-old C57Bl/6 male mice were fed an AIN-93G basal diet (BD) or an isocaloric BD+10% ground FS diet for 3 weeks. FS enhanced colon goblet cell density, mucus production, MUC2 mRNA expression, and cecal short chain fatty acid levels, indicative of beneficial intestinal barrier integrity responses. Additionally, FS enhanced colonic regenerating islet-derived protein 3 gamma (RegIIIγ) and reduced MUC1 and resistin-like molecule beta (RELMβ) mRNA expression which may indicate altered responses in regulating microbial defense and injury repair responses. FS diet altered the fecal microbial community structure (16S rRNA gene profiling), including a 20-fold increase in Prevotella spp. and a 30-fold reduction in Akkermansia muciniphila abundance. A 10-fold reduction in A. muciniphila abundance by FS was also demonstrated in the colon tissue-associated microbiota (quantitative PCR). Furthermore, fecal branched chain fatty acids were increased by FS, indicative of increased microbial-derived putrefactive compounds. In conclusion, consumption of a FS-supplemented diet alters the baseline colonic microenvironment of healthy mice which may modify subsequent mucosal microbial defense and injury-repair responses leading to altered susceptibility to different gut-associated diseases.
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Affiliation(s)
- Krista A Power
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, AAFC, Guelph, Ontario.
| | - Dion Lepp
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, AAFC, Guelph, Ontario
| | - Leila Zarepoor
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, AAFC, Guelph, Ontario
| | - Jennifer M Monk
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, AAFC, Guelph, Ontario
| | - Wenqing Wu
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, AAFC, Guelph, Ontario
| | - Rong Tsao
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, AAFC, Guelph, Ontario
| | - Ronghua Liu
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, AAFC, Guelph, Ontario
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47
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Abstract
Inflammatory bowel disease (IBD) encompasses a group of disorders affecting the gastrointestinal tract characterized by acute and chronic inflammation. These are complex and multifactorial disorders that arise in part from a genetic predisposition. However, the increasing incidence of IBD in developing countries suggests that environmental factors, such as diet, are also critical components of disease susceptibility. Evidence suggests that consumption of a Western diet, enriched with saturated fat, refined carbohydrates, and food additives, is associated with increased IBD risk. Dietary components, such as omega-6 fatty acids, long-chain fatty acids, protein, and digestible carbohydrates, may contribute to IBD pathogenesis through altering intestinal microbiota, increasing intestinal permeability, and promoting inflammation; whereas omega-3 fatty acids, medium chain triglycerides, and nondigestible carbohydrates improve these parameters and intestinal health. However, the limited amount of prospective studies, small sample sizes, and the heterogeneity of disease subtype result in inconsistencies between studies and difficulty in conclusively determining the specific effects of diet on intestinal homeostasis. There are no standard clinical dietary recommendations for patients with IBD. However, exclusionary diet interventions have shown some efficacy in relieving symptoms or inducing remission, suggesting more research is needed to fully understand how diet influences disease behavior or combines with other IBD risk factors to promote disease. This review focuses on the associations of various dietary components and IBD risk in clinical studies and genetically susceptible IBD models.
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48
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Abstract
Inflammatory bowel disease (IBD) is a complex, multi-factorial disease thought to arise from an inappropriate immune response to commensal bacteria in a genetically susceptible person that results in chronic, cyclical, intestinal inflammation. Dietary and environmental factors are implicated in the initiation and perpetuation of IBD; however, a singular causative agent has not been identified. As of now, the role of environmental priming or triggers in IBD onset and pathogenesis are not well understood, but these factors appear to synergize with other disease susceptibility factors. In previous work, we determined that the polysaccharide dietary additive, maltodextrin (MDX), impairs cellular anti-bacterial responses and suppresses intestinal anti-microbial defense mechanisms. In this addendum, we review potential mechanisms for dietary deregulation of intestinal homeostasis, postulate how dietary and genetic risk factors may combine to result in disease pathogenesis, and discuss these ideas in the context of recent findings related to dietary interventions for IBD.
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Key Words
- AIEC, adherent-invasive Escherichia coli
- CD, Crohn's disease
- CMC, carboxymethyl cellulose
- Crohn's disease
- DSS, dextran sulfate sodium
- FDA, Food and Drug Administration
- GRAS, Generally Recognized As Safe
- IBD, inflammatory bowel disease
- IBD-AID, inflammatory bowel disease-anti-inflammatory diet
- MDX, maltodextrin
- SCD, specific carbohydrate diet
- UC, ulcerative colitis
- anti-microbial defense
- diet
- dietary additive
- inflammatory bowel disease
- intestinal homeostasis
- maltodextrin
- mucosal defense
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Affiliation(s)
- Kourtney P Nickerson
- Mucosal Immunology and Biology Research Center; Division of Pediatric Gastroenterology and Nutrition; Massachusetts General Hospital; Boston, MA USA,Department of Pediatrics; Harvard Medical School; Boston, MA USA
| | - Rachael Chanin
- Mucosal Immunology and Biology Research Center; Division of Pediatric Gastroenterology and Nutrition; Massachusetts General Hospital; Boston, MA USA
| | - Christine McDonald
- Department of Pathobiology; Lerner Research Institute; Cleveland Clinic; Cleveland, OH USA,Department of Molecular Medicine; Cleveland Clinic Lerner College of Medicine at Case Western Reserve University; Cleveland, OH USA,Correspondence to: Christine McDonald;
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