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Xu D, Liu D, Jiang N, Xie Y, He D, Cheng J, Liu J, Fu S, Hu G. Narirutin mitigates dextrose sodium sulfate-induced colitis in mice by modulating intestinal flora. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155730. [PMID: 38759313 DOI: 10.1016/j.phymed.2024.155730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 04/26/2024] [Accepted: 05/09/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND Ulcerative colitis (UC) is a prolonged inflammatory disease of the gastrointestinal tract. Current therapeutic options remain limited, underscoring the imperative to explore novel therapeutic strategies. Narirutin (NR), a flavonoid naturally present in citrus fruits, exhibits excellent anti-inflammatory effects in vitro, yet its in vivo efficacy, especially in UC, remains underexplored. OBJECTIVE This work examined the effect of NR on dextrose sodium sulfate (DSS)-induced UC in mice in vivo, with a specific focus on the role of gut flora in it. METHODS The effects of NR (10, 20, and 40 mg/kg) on DSS-induced UC in mice were investigated by monitoring changes in body weight, disease activity index (DAI) scores, colon length, and histological damage. Colonic levels of pro-inflammatory mediators, tight junction (TJ) proteins, and inflammation-related signaling pathway proteins were analyzed via enzyme-linked immunosorbent assay, western blot, and immunofluorescence. The role of gut microbiota in NR against colitis was analyzed through 16S rRNA sequencing, flora clearance assays, and fecal microbiota transplantation (FMT) assays. RESULTS NR administration suppressed DSS-induced colitis as reflected in a decrease in body weight loss, DAI score, colon length shortening, and histological score. Furthermore, NR administration preserved the integrity of the DSS-induced intestinal barrier by inhibiting the reduction of TJ proteins (claudin3, occludin, and zonula occludens-1). Moreover, NR administration markedly repressed the activation of the toll-like receptor 4-mitogen-activated protein kinase/nuclear factor-κB pathway and reduced the amount of pro-inflammatory mediators in the colon. Importantly, the results of 16S rRNA sequencing showed that the intestinal flora of mice with colitis exhibited richer microbial diversity following NR administration, with elevated abundance of Lactobacillaceae (Lactobacillus) and decreased abundance of Bacteroidaceae (Bacteroides) and Shigella. In addition, the anti-colitis effect of NR almost disappeared after gut flora clearance. Further FMT assay also validated this gut flora-dependent protective mechanism of NR. CONCLUSION Our findings suggest that NR is a prospective natural compound for the management of UC by modulating intestinal flora.
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Affiliation(s)
- Dianwen Xu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Dianfeng Liu
- College of Animal Science, Jilin University, Changchun, China
| | - Naiyuan Jiang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
| | - Yachun Xie
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Dewei He
- College of Animal Science, Jilin University, Changchun, China
| | - Ji Cheng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Juxiong Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Shoupeng Fu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China.
| | - Guiqiu Hu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China.
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2
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Halmos EP, Godny L, Vanderstappen J, Sarbagili-Shabat C, Svolos V. Role of diet in prevention versus treatment of Crohn's disease and ulcerative colitis. Frontline Gastroenterol 2024; 15:247-257. [PMID: 38665795 PMCID: PMC11042448 DOI: 10.1136/flgastro-2023-102417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/10/2023] [Indexed: 04/28/2024] Open
Abstract
Diet is a modifiable risk factor for disease course and data over the past decade have emerged to indicate its role in Crohn's disease (CD) and ulcerative colitis (UC). However, literature is riddled with misinterpretation of data, often leading to unexpected or conflicting results. The key understanding is that causative factors in disease development do not always proceed to an opportunity to change disease course, once established. Here, we discuss the data on dietary influences in three distinct disease states for CD and UC-predisease, active disease and quiescent disease. We appraise the literature for how our dietary recommendations should be shaped to prevent disease development and if or how that differs for CD and UC induction therapy and maintenance therapy. In UC, principles of healthy eating are likely to play a role in all states of disease. Conversely, data linking dietary factors to CD prevention and treatment are paradoxical with the highest quality evidence for CD treatment being exclusive enteral nutrition, a lactose, gluten and fibre-free diet comprising solely of ultraprocessed food-all dietary factors that are not associated or inversely associated with CD prevention. High-quality evidence from dietary trials is much awaited to expand our understanding and ultimately lead our dietary recommendations for targeted patient populations.
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Affiliation(s)
- Emma P Halmos
- Department of Gastroenterology, Monash University and Alfred Health, Melbourne, Victoria, Australia
| | - Lihi Godny
- Division of Gastroenterology and Nutrition Unit, Rabin Medical Center, Petah Tikva, Israel
| | - Julie Vanderstappen
- Department of Gastroenterology and Hepatology, University Hospitals of Leuven, Leuven, Belgium
| | - Chen Sarbagili-Shabat
- Pediatric Gastroenterology and Nutrition Unit, The E. Wolfson Medical Center, Holon, Israel
- The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Vaios Svolos
- School of Medicine, Dentistry and Nursing, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Laboratory of Clinical Nutrition and Dietetics, Department of Nutrition and Dietetics, School of Physical Education, Sports Science and Dietetics, University of Thessaly, Trikala, Greece
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3
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Zhao J, Chen J, Sun Y, Yuan S, Wellens J, Kalla R, Theodoratou E, Li X, Satsangi J. Defining gene-lifestyle interactions in inflammatory bowel disease: progress towards understanding disease pathogenesis. Gut 2024; 73:878-879. [PMID: 37015755 DOI: 10.1136/gutjnl-2023-329875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 03/24/2023] [Indexed: 04/06/2023]
Affiliation(s)
- Jianhui Zhao
- School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jie Chen
- School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Department of Gastroenterology, Central South University Third Xiangya Hospital, Changsha, Hunan, China
| | - Yuhao Sun
- School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shuai Yuan
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Judith Wellens
- Gastroenterology and Hepatology, KU Leuven University Hospitals Leuven Gasthuisberg Campus Hospital Pharmacy, Leuven, Belgium
| | - Rahul Kalla
- Medical Research Council Centre for Inflammation Research, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Evropi Theodoratou
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Centre for Global Health Research, Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Xue Li
- School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jack Satsangi
- Translational Gastro-Intestinal Unit, Nuffield Department of Medicine, John Radcliffe Hospital, Oxford, UK
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4
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Khademi Z, Pourreza S, Amjadifar A, Torkizadeh M, Amirkhizi F. Dietary Patterns and Risk of Inflammatory Bowel Disease: A Systematic Review of Observational Studies. Inflamm Bowel Dis 2024:izad297. [PMID: 38180868 DOI: 10.1093/ibd/izad297] [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: 07/12/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND The incidence of inflammatory bowel disease (IBD) is increasing worldwide. Dietary patterns may be associated with odds of this disease. Although previous reviews have attempted to summarize the evidence in this field, the growing body of investigations prompted us to conduct an updated comprehensive systematic review. METHODS We used the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines to evaluate the association between dietary patterns before disease onset and the risk of IBD. PubMed, SCOPUS, and Web of Science were searched using structured keywords up to November 20, 2023. RESULTS Twenty-four publications (13 case-control, 1 nested case-control, and 10 cohort studies) were included in this review. The sample size of these studies ranged from 181 to 482 887 subjects. The findings were inconsistent across the included studies, showing inverse, direct, or no association between different dietary patterns and the risk of IBD. CONCLUSIONS This review provides comprehensive data on the link between dietary patterns prior to IBD diagnosis and risk of this condition. The explicit finding of present review is the extent gap in our knowledge in this field. Therefore, large-scale, high-quality studies are warranted to improve our understanding of the relationship between dietary patterns and IBD risk.
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Affiliation(s)
- Zainab Khademi
- Department of Public Health, Sirjan School of Medical Sciences, Sirjan, Iran
| | - Sanaz Pourreza
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Anis Amjadifar
- Department of Sports Sciences, Faculty of Humanities, East Tehran Branch, Islamic Azad University, Tehran, Iran
| | | | - Farshad Amirkhizi
- Department of Nutrition, Faculty of Public Health, Zabol University of Medical Sciences, Zabol, Iran
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Wang L, Sun Z, Shan X, Peng C, Ding H, Feng S, Zhao C, Wang X, Wu J. MicroRNA-223 Inhibits Soybean Glycinin- and β-Conglycinin-Induced Apoptosis of IPEC-J2 Cells by Targeting NLRP-3 in the IEL/IPEC-J2 Co-culture System. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13745-13756. [PMID: 37682935 DOI: 10.1021/acs.jafc.3c01581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
The apoptosis of intestinal porcine epithelial cells induced by soybean antigen protein allergy is one of the most important mechanisms responsible for enteritis. MicroRNAs (miRNAs) affect the cellular and physiological functions of all multicellular organisms. We hypothesize that microRNA-223 inhibits soybean glycinin- and β-conglycinin-induced apoptosis of intestinal porcine enterocytes (IPEC-J2) by targeting the NLR family pyrin domain containing 3 (NLRP-3). Using the intestinal interepithelial lymphocyte (IEL)/IPEC-J2 co-culture system as an in vitro model, we investigate the role of microRNA-223 in the regulation of soybean glycinin- and β-conglycinin-induced apoptosis. In co-cultured IEL/IPEC-J2 cells incubated with glycinin or β-conglycinin, microRNA-223 decreased NLRP-3, ASC, caspase-1, caspase-3, FAS, BCL-2, and APAF-1 expressions in IPEC-J2 cells; decreased cytokine and cyclooxygenase-2 levels; significantly increased cell activity; and inhibited apoptosis. These data supported a novel antiallergic mechanism to mitigate the sensitization of soybean antigenic protein, which involves the upregulation of microRNA-223-targeting NLRP-3.
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Affiliation(s)
- Lei Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Zhifeng Sun
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Xinggen Shan
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Chenglu Peng
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hongyan Ding
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Shibin Feng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Chang Zhao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Xichun Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
| | - Jinjie Wu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230061, China
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6
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Khademi Z, Saneei P, Hassanzadeh-Keshteli A, Daghaghzadeh H, Tavakkoli H, Adibi P, Esmaillzadeh A. Association between food-based dietary inflammatory potential and ulcerative colitis: a case-control study. Sci Rep 2023; 13:8464. [PMID: 37231032 DOI: 10.1038/s41598-023-33138-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/07/2023] [Indexed: 05/27/2023] Open
Abstract
Despite several studies on the link between dietary inflammatory potential and risk of several conditions, limited studies investigated the association between pro-inflammatory diet and ulcerative colitis (UC). The objective of the present study was to examine the link between food-based dietary inflammatory potential (FDIP) and odds of UC in Iranian adults. This case-control study was carried out among 109 cases and 218 randomly chosen healthy controls. UC was diagnosed and confirmed by a gastroenterologist. Patients with this condition were recruited from Iranian IBD registry. Age- and sex-matched controls were selected randomly from participants of a large cross-sectional study. Dietary data were obtained using a validated 106-item semi-quantitative food frequency questionnaire (FFQ). We calculated FDIP score using subjects' dietary intakes of 28 pre-defined food groups. In total 67% of subjects were female. There was no significant difference in mean age between cases and controls (39.5 vs. 41.5y; p = 0.12). The median (interquartile range) of FDIP scores for cases and controls were - 1.36(3.25) and - 1.54(3.15), respectively. We found no significant association between FDIP score and UC in the crude model (OR 0.93; 95% CIs 0.53-1.63). Adjustment for several potential confounders in multivariate model did not change this association (OR 1.12; 95% CIs 0.46-2.71). We failed to observe any significant association between greater adherence to a pro-inflammatory diet and risk of UC in this study. Prospective cohort studies are needed to further assess this relationship.
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Affiliation(s)
- Zeinab Khademi
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ammar Hassanzadeh-Keshteli
- Department of Medicine, University of Alberta, Edmonton, Canada
- Integrative Functional Gastroenterology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamed Daghaghzadeh
- Integrative Functional Gastroenterology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamid Tavakkoli
- Integrative Functional Gastroenterology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Peyman Adibi
- Integrative Functional Gastroenterology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ahmad Esmaillzadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular -Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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7
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Saha S, Patel N. What Should I Eat? Dietary Recommendations for Patients with Inflammatory Bowel Disease. Nutrients 2023; 15:nu15040896. [PMID: 36839254 PMCID: PMC9966256 DOI: 10.3390/nu15040896] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic disorder thought to be caused by enteric inflammation in a genetically susceptible host. Although the pathogenesis of IBD is largely unknown, it is widely accepted that dietary components play an important role. Human and animal-based studies have explored the role of various dietary components such as meat, artificial sweeteners and food additives in causing enteric inflammation. Several diets have also been studied in patients with IBD, specifically their role in the induction or maintenance of remission. The most well-studied of these include exclusive enteral nutrition and specific carbohydrate diet. A diet low in FODMAPs (fermentable oligosaccharides, disaccharides, monosaccharides and polyols), typically prescribed for patients with irritable bowel syndrome, has also been studied in a specific subgroup of patients with IBD. In this review, we describe the current evidence on how various dietary components can induce enteric and colonic inflammation, and the clinical-epidemiological evidence exploring their role in predisposing to or protecting against the development of IBD. We also discuss several special diets and how they affect clinical outcomes in IBD patients. Based on the available evidence, we provide guidance for patients and clinicians managing IBD regarding the best practice in dietary modifications.
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Affiliation(s)
- Srishti Saha
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Neha Patel
- Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Correspondence: ; Tel.: +1-469-776-0671
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Khalili H, Hakansson N, Casey K, Lopes E, Ludvigsson JF, Chan AT, Chan SSM, Olen O, Wolk A. Diet Quality and Risk of Older-Onset Crohn's Disease and Ulcerative Colitis. J Crohns Colitis 2022; 17:746-753. [PMID: 36521021 DOI: 10.1093/ecco-jcc/jjac184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND To assess the relationship between diet quality and risk of older-onset Crohn's disease (CD) and ulcerative colitis (UC). METHODS We conducted a prospective cohort study of 83,147 participants from the Swedish Mammography Cohort and the Cohort of Swedish Men. We used food frequency questionnaire to calculate adherence scores to multiple derived health diet patterns: Alternate Healthy Eating Index (AHEI), Healthy Eating Index-2015 (HEI-2015), Healthful Plant-Based Diet Index (HPDI), and modified Mediterranean Diet Score (mMED) at baseline in 1997 in both cohorts. Diagnoses of CD and UC were retrieved from the Swedish Patient Register. We used Cox proportional hazards modeling to estimate the adjusted hazard ratios (HRs) and 95% CIs. FINDINGS Through December of 2017, we confirmed 164 incident cases of CD and 395 incident cases of UC. Comparing the highest to the lowest quartiles, the adjusted HRs of CD were 0.73 (95% CI, 0.48, 1.12, Ptrend = 0.123) for AHEI; 0.90 (0.57, 1.41, Ptrend = 0.736) for HEI 2015; 0.52 (95% CI 0.32, 0.85, Ptrend = 0.011) for HPDI; and 0.58 (95% CI 0.32, 1.06, Ptrend = 0.044) for mMED. In contrast, we did not observe an association between any diet quality score and risk of UC. INTERPRETATION We found that several healthy eating patterns were associated with a lower risk of older-onset CD. Our findings provide a rationale for adapting different healthy dietary patterns based on individuals' food preferences and traditions for designing future prevention strategies for IBD.
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Affiliation(s)
- Hamed Khalili
- Gastroenterology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Niclas Hakansson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Kevin Casey
- Gastroenterology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Emily Lopes
- Gastroenterology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonas F Ludvigsson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Department of Pediatrics, Örebro University Hospital, Örebro University, Örebro, Sweden
| | - Andrew T Chan
- Gastroenterology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Simon S M Chan
- Department of Medicine, Norwich Medical School, University of East Anglia, Norwich, United Kingdom.,Department of Gastroenterology, Norfolk and Norwich University Hospital NHS Trust, Norwich, United Kingdom
| | - Ola Olen
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Pediatric Gastroenterology and Nutrition Unit, Sachs' Children's Hospital, Stockholm, Sweden
| | - Alicja Wolk
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
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9
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Yan J, Wang L, Gu Y, Hou H, Liu T, Ding Y, Cao H. Dietary Patterns and Gut Microbiota Changes in Inflammatory Bowel Disease: Current Insights and Future Challenges. Nutrients 2022; 14:nu14194003. [PMID: 36235658 PMCID: PMC9572174 DOI: 10.3390/nu14194003] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/19/2022] [Accepted: 09/23/2022] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a result of a complex interplay between genes, host immune response, gut microbiota, and environmental factors. As one of the crucial environmental factors, diet plays a pivotal role in the modulation of gut microbiota community and the development of IBD. In this review, we present an overview of dietary patterns involved in the pathogenesis and management of IBD, and analyze the associated gut microbial alterations. A Westernized diet rich in protein, fats and refined carbohydrates tends to cause dysbiosis and promote IBD progression. Some dietary patterns have been found effective in obtaining IBD clinical remission, including Crohn's Disease Exclusion Diet (CDED), Mediterranean diet (MD), Anti-Inflammatory Diet (AID), the low-"Fermentable Oligo-, Di-, Mono-saccharides and Polyols" (FODMAP) diet, Specific Carbohydrate Diet (SCD), and plant-based diet, etc. Overall, many researchers have reported the role of diet in regulating gut microbiota and the IBD disease course. However, more prospective studies are required to achieve consistent and solid conclusions in the future. This review provides some recommendations for studies exploring novel and potential dietary strategies that prevent IBD.
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Affiliation(s)
- Jing Yan
- Tianjin Key Laboratory of Digestive Diseases, Department of Gastroenterology and Hepatology, Tianjin Institute of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
- Department of Nutrition, the Second Affiliated Hospital, Air Force Medical University, Xi’an 710038, China
| | - Lei Wang
- Tianjin Key Laboratory of Digestive Diseases, Department of Gastroenterology and Hepatology, Tianjin Institute of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
- Department of Gastroenterology and Hepatology, the Affiliated Hospital of Chengde Medical College, Chengde 067000, China
| | - Yu Gu
- Tianjin Key Laboratory of Digestive Diseases, Department of Gastroenterology and Hepatology, Tianjin Institute of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Huiqin Hou
- Tianjin Key Laboratory of Digestive Diseases, Department of Gastroenterology and Hepatology, Tianjin Institute of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Tianyu Liu
- Tianjin Key Laboratory of Digestive Diseases, Department of Gastroenterology and Hepatology, Tianjin Institute of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yiyun Ding
- Tianjin Key Laboratory of Digestive Diseases, Department of Gastroenterology and Hepatology, Tianjin Institute of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Hailong Cao
- Tianjin Key Laboratory of Digestive Diseases, Department of Gastroenterology and Hepatology, Tianjin Institute of Digestive Diseases, Tianjin Medical University General Hospital, Tianjin 300052, China
- Correspondence:
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10
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Dong C, Chan SSM, Jantchou P, Racine A, Oldenburg B, Weiderpass E, Heath AK, Tong TYN, Tjønneland A, Kyrø C, Bueno de Mesquita B, Kaaks R, Katzke VA, Bergman MM, Boeing H, Palli D, Masala G, Tumino R, Sacerdote C, Colorado-Yohar SM, Sánchez MJ, Grip O, Lindgren S, Luben R, Huybrechts I, Gunter MJ, Mahamat-Saleh Y, Boutron-Ruault MC, Carbonnel F. Meat Intake Is Associated with a Higher Risk of Ulcerative Colitis in a Large European Prospective Cohort Studyø. J Crohns Colitis 2022; 16:1187-1196. [PMID: 35396592 PMCID: PMC10020974 DOI: 10.1093/ecco-jcc/jjac054] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND AIMS We aimed to investigate the association between protein intake and risk of inflammatory bowel disease [IBD] in the European Prospective Investigation into Cancer and Nutrition. METHODS A total of 413 593 participants from eight European countries were included. Dietary data were collected at baseline from validated food frequency questionnaires. Dietary data were calibrated to correct errors in measures related to each country-specific questionnaire. Associations between proteins [total, animal, and vegetable] or food sources of animal proteins, and IBD risk were estimated by Cox proportional hazard models. RESULTS After a mean follow-up of 16 years, 177 patients with Crohn's disease [CD] and 418 with ulcerative colitis [UC], were identified. There was no association between total protein, animal protein, or vegetable protein intakes and CD or UC risks. Total meat and red meat intakes were associated with UC risk (hazard ratio [HR] for the 4th vs 1st quartile = 1.40, 95% confidence interval [CI] = 0.99-1.98, p-trend = 0.01; and 1.61, 95% CI = 1.10-2.36, p-trend = 0.007, respectively]. There was no association between other food sources of animal protein [processed meat, fish, shellfish, eggs, poultry] and UC. We found no association between food sources of animal proteins and CD risk. CONCLUSIONS Meat and red meat consumptions are associated with higher risks of UC. These results support dietary counselling of low meat intake in people at high-risk of IBD.
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Affiliation(s)
- Catherine Dong
- INSERM, Centre for Research in Epidemiology and Population Health, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France
- Department of Gastroenterology, University Hospital of Bicêtre, Assistance Publique-Hôpitaux de Paris and Université Paris-Saclay, Le Kremlin Bicêtre, France
| | - Simon S M Chan
- Norwich Medical School, Department of Medicine, University of East Anglia, Norwich, UK
- Department of Gastroenterology, Norfolk and Norwich University Hospital NHS Trust, Norwich, UK
| | - Prevost Jantchou
- INSERM, Centre for Research in Epidemiology and Population Health, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France
- Sainte Justine University Hospital, Montréal, QC, Canada
| | - Antoine Racine
- INSERM, Centre for Research in Epidemiology and Population Health, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France
- Department of Gastroenterology, University Hospital of Bicêtre, Assistance Publique-Hôpitaux de Paris and Université Paris-Saclay, Le Kremlin Bicêtre, France
| | - Bas Oldenburg
- Department of Gastroenterology and Hepatology, University Medical Centre, Utrecht, The Netherlands
| | - Elisabete Weiderpass
- International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Alicia K Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Tammy Y N Tong
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Anne Tjønneland
- Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Cecilie Kyrø
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Bas Bueno de Mesquita
- National Institute for Public Health and the Environment [RIVM], Bilthoven, The Netherlands
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research
Center, Heidelberg, Germany
| | - Verena A Katzke
- Division of Cancer Epidemiology, German Cancer Research
Center, Heidelberg, Germany
| | - Manuela M Bergman
- Department of Epidemiology, German Institute of Human Nutrition, Potsdam, Germany
| | - Heiner Boeing
- Department of Epidemiology, German Institute of Human Nutrition, Potsdam, Germany
| | - Domenico Palli
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute, Florence, Italy
| | - Giovanna Masala
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute, Florence, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, Azienda Sanitaria Provinciale, Ragusa, Italy
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città della Salute e della Scienza University-Hospital, Turin, Italy
| | - Sandra M Colorado-Yohar
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
- CIBER Epidemiologia y Salud Pública [CIBERESP], Madrid, Spain
- National School of Public Health, Research Group on Demography and Health, University of Antioquia, Medellín, Colombia
| | - Maria-Jose Sánchez
- CIBER Epidemiologia y Salud Pública [CIBERESP], Madrid, Spain
- Escuela Andaluza de Salud Pública [EASP], Granada, Spain
- Instituto de Investigación Biosanitaria, Granada, Spain
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
| | - Olof Grip
- Department of Gastroenterology and Hepatology, University Hospital Malmö, Malmö, Sweden
| | - Stefan Lindgren
- Department of Gastroenterology and Hepatology, University Hospital Malmö, Malmö, Sweden
| | - Robert Luben
- Strangeways Research Laboratory, Institute of Public Health, University of Cambridge, Cambridge, UK
| | - Inge Huybrechts
- International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Marc J Gunter
- International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Yahya Mahamat-Saleh
- INSERM, Centre for Research in Epidemiology and Population Health, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France
| | - Marie-Christine Boutron-Ruault
- INSERM, Centre for Research in Epidemiology and Population Health, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France
| | - Franck Carbonnel
- INSERM, Centre for Research in Epidemiology and Population Health, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France
- Department of Gastroenterology, University Hospital of Bicêtre, Assistance Publique-Hôpitaux de Paris and Université Paris-Saclay, Le Kremlin Bicêtre, France
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11
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Tracy M, Khalili H. You Are What You Eat? Growing Evidence That Diet Influences the Risk of Inflammatory Bowel Disease. J Crohns Colitis 2022; 16:1185-1186. [PMID: 35194635 PMCID: PMC9426666 DOI: 10.1093/ecco-jcc/jjac025] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Michaela Tracy
- Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA, USA.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Hamed Khalili
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,The Immunology Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
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12
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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: 0] [Impact Index Per Article: 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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13
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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: 50] [Impact Index Per Article: 25.0] [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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14
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Supplementation with High or Low Iron Reduces Colitis Severity in an AOM/DSS Mouse Model. Nutrients 2022; 14:nu14102033. [PMID: 35631174 PMCID: PMC9147005 DOI: 10.3390/nu14102033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/03/2022] [Accepted: 05/07/2022] [Indexed: 11/17/2022] Open
Abstract
The relationship between colitis-associated colorectal cancer (CAC) and the dysregulation of iron metabolism has been implicated. However, studies on the influence of dietary iron deficiency on the incidence of CAC are limited. This study investigated the effects of dietary iron deficiency and dietary non-heme iron on CAC development in an azoxymethane/dextran sodium sulfate (AOM/DSS) mouse model. The four-week-old mice were divided into the following groups: iron control (IC; 35 ppm iron/kg) + normal (NOR), IC + AOM/DSS, iron deficient (ID; <5 ppm iron/kg diet) + AOM/DSS, and iron overload (IOL; approximately 2000 ppm iron/kg) + AOM/DSS. The mice were fed the respective diets for 13 weeks, and the AOM/DSS model was established at week five. FTH1 expression increased in the mice’s colons in the IC + AOM/DSS group compared with that observed in the ID and IOL + AOM/DSS groups. The reduced number of colonic tumors in the ID + AOM/DSS and IOL + AOM/DSS groups was accompanied by the downregulated expression of cell proliferation regulators (PCNA, cyclin D1, and c-Myc). Iron overload inhibited the increase in the expression of NF-κB and its downstream inflammatory cytokines (IL-6, TNFα, iNOS, COX2, and IL-1β), likely due to the elevated expression of antioxidant genes (SOD1, TXN, GPX1, GPX4, CAT, HMOX1, and NQO1). ID + AOM/DSS may hinder tumor development in the AOM/DSS model by inhibiting the PI3K/AKT pathway by increasing the expression of Ndrg1. Our study suggests that ID and IOL diets suppress AOM/DSS-induced tumors and that long-term iron deficiency or overload may negate CAC progression.
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15
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Zhang L, Yao X, Ma M, Ding Y, Zhang H, He X, Song Z. Protective Effect of l-Theanine against DSS-Induced Colitis by Regulating the Lipid Metabolism and Reducing Inflammation via the NF-κB Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:14192-14203. [PMID: 34784210 DOI: 10.1021/acs.jafc.1c05839] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The present study revealed the phylactic effects of l-theanine on a DSS-induced colitis mice model. The results showed that 3% DSS treatment significantly induced intestinal damage as reflected by DAI, histopathological feature, and colon length, while l-theanine pretreatment markedly prevented these trends to exert protective effects. Meanwhile, l-theanine pretreatment decreased the levels of TNF-α, IL-1β, IL-6, iNOS, and COX2 on DSS-induced colitis. Notably, DSS inhibited the proliferation and promoted the apoptosis of intestinal epithelial cells, thereby damaging the integrity of the intestinal epithelial barrier, whereas l-theanine also played a protective role by attenuating these deteriorated effects. It was also observed that l-theanine treatment downregulated the levels of p-p65, p65, p-p53, p53, and p-AKT protein expression in acute DSS-induced colitis, which showed the protective function of l-theanine, mainly via the NF-κB signaling pathway. Furthermore, the results of lipid analysis and transcriptome analysis show that l-theanine reversed transcriptional profiles and lipid profiles of colitis models, mainly via the inflammatory reactivity-related pathway. Interestingly, the correlation analysis between transcriptional profiles and lipid profiles showed that inflammatory response-related genes were almost significantly correlated with differential lipid metabolites. In summary, l-theanine plays a protective role in DSS-induced colitis via downregulating the NF-κB signaling pathway and regulating lipid metabolism disorders.
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Affiliation(s)
- Longlin Zhang
- College of Animal Science and Technology, Hunan Agricultural University, Hunan 410128, China
| | - Xiaofeng Yao
- College of Animal Science and Technology, Hunan Agricultural University, Hunan 410128, China
| | - Mengmeng Ma
- College of Animal Science and Technology, Hunan Agricultural University, Hunan 410128, China
| | - Yanan Ding
- College of Animal Science and Technology, Hunan Agricultural University, Hunan 410128, China
| | - Haihan Zhang
- College of Animal Science and Technology, Hunan Agricultural University, Hunan 410128, China
| | - Xi He
- College of Animal Science and Technology, Hunan Agricultural University, Hunan 410128, China
| | - Zehe Song
- College of Animal Science and Technology, Hunan Agricultural University, Hunan 410128, China
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16
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Abstract
Current practice in IBD is to classify patients based on clinical signs and symptoms and provide treatments accordingly. However, the response of IBD patients to available treatments is highly variable, highlighting clinically significant heterogeneity among patients. Thus, more accurate patient stratification is urgently needed to more effectively target therapeutic interventions to specific patients. Here we review the degree of heterogeneity in IBD, discussing how the microbiota, genetics, and immune system may contribute to the variation among patients. We highlight how molecular heterogeneity may relate to clinical phenotype, but in other situations may be independent of clinical phenotype, encouraging future studies to fill the gaps. Finally, we discuss novel stratification methodologies as a foundation for precision medicine, in particular a novel stratification strategy based on conserved genes across species. All of these dimensions of heterogeneity have potential to provide strategies for patient stratification and move IBD practice towards personalised medicine.
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Affiliation(s)
- Katja A Selin
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Gastroenterology Unit, Patient Area Gastroenterology, Dermatovenereology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Solna, Division of Clinical Medicine, Karolinska Institutet, Solna, Sweden
| | - Charlotte R H Hedin
- Gastroenterology Unit, Patient Area Gastroenterology, Dermatovenereology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Solna, Division of Clinical Medicine, Karolinska Institutet, Solna, Sweden
| | - Eduardo J Villablanca
- Division of Immunology and Allergy, Department of Medicine, Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine, Solna, Division of Clinical Medicine, Karolinska Institutet, Solna, Sweden
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17
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Ratajczak AE, Rychter AM, Zawada A, Dobrowolska A, Krela-Kaźmierczak I. Do Only Calcium and Vitamin D Matter? Micronutrients in the Diet of Inflammatory Bowel Diseases Patients and the Risk of Osteoporosis. Nutrients 2021; 13:nu13020525. [PMID: 33562891 PMCID: PMC7914453 DOI: 10.3390/nu13020525] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/27/2021] [Accepted: 02/03/2021] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is one of the most common extraintestinal complications among patients suffering from inflammatory bowel diseases. The role of vitamin D and calcium in the prevention of a decreased bone mineral density is well known, although other nutrients, including micronutrients, are also of extreme importance. Despite the fact that zinc, copper, selenium, iron, cadmium, silicon and fluorine have not been frequently discussed with regard to the prevention of osteoporosis, it is possible that a deficiency or excess of the abovementioned elements may affect bone mineralization. Additionally, the risk of malnutrition, which is common in patients with ulcerative colitis or Crohn's disease, as well as the composition of gut microbiota, may be associated with micronutrients status.
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Affiliation(s)
- Alicja Ewa Ratajczak
- Correspondence: (A.E.R.); (I.K.-K.); Tel.: +48-667-385-996 (A.E.R.); +48-8691-343 (I.K.-K.); Fax: +48-8691-686 (A.E.R.)
| | | | | | | | - Iwona Krela-Kaźmierczak
- Correspondence: (A.E.R.); (I.K.-K.); Tel.: +48-667-385-996 (A.E.R.); +48-8691-343 (I.K.-K.); Fax: +48-8691-686 (A.E.R.)
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18
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Hopper CP, De La Cruz LK, Lyles KV, Wareham LK, Gilbert JA, Eichenbaum Z, Magierowski M, Poole RK, Wollborn J, Wang B. Role of Carbon Monoxide in Host-Gut Microbiome Communication. Chem Rev 2020; 120:13273-13311. [PMID: 33089988 DOI: 10.1021/acs.chemrev.0c00586] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Nature is full of examples of symbiotic relationships. The critical symbiotic relation between host and mutualistic bacteria is attracting increasing attention to the degree that the gut microbiome is proposed by some as a new organ system. The microbiome exerts its systemic effect through a diverse range of metabolites, which include gaseous molecules such as H2, CO2, NH3, CH4, NO, H2S, and CO. In turn, the human host can influence the microbiome through these gaseous molecules as well in a reciprocal manner. Among these gaseous molecules, NO, H2S, and CO occupy a special place because of their widely known physiological functions in the host and their overlap and similarity in both targets and functions. The roles that NO and H2S play have been extensively examined by others. Herein, the roles of CO in host-gut microbiome communication are examined through a discussion of (1) host production and function of CO, (2) available CO donors as research tools, (3) CO production from diet and bacterial sources, (4) effect of CO on bacteria including CO sensing, and (5) gut microbiome production of CO. There is a large amount of literature suggesting the "messenger" role of CO in host-gut microbiome communication. However, much more work is needed to begin achieving a systematic understanding of this issue.
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Affiliation(s)
- Christopher P Hopper
- Institute for Experimental Biomedicine, University Hospital Wuerzburg, Wuerzburg, Bavaria DE 97080, Germany.,Department of Medicinal Chemistry, College of Pharmacy, The University of Florida, Gainesville, Florida 32611, United States
| | - Ladie Kimberly De La Cruz
- Department of Chemistry & Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Kristin V Lyles
- Department of Biology, Georgia State University, Atlanta, Georgia 30303, United States
| | - Lauren K Wareham
- The Vanderbilt Eye Institute and Department of Ophthalmology & Visual Sciences, The Vanderbilt University Medical Center and School of Medicine, Nashville, Tennessee 37232, United States
| | - Jack A Gilbert
- Department of Pediatrics, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093, United States
| | - Zehava Eichenbaum
- Department of Biology, Georgia State University, Atlanta, Georgia 30303, United States
| | - Marcin Magierowski
- Cellular Engineering and Isotope Diagnostics Laboratory, Department of Physiology, Jagiellonian University Medical College, Cracow PL 31-531, Poland
| | - Robert K Poole
- Department of Molecular Biology and Biotechnology, The University of Sheffield, Firth Court, Sheffield S10 2TN, U.K
| | - Jakob Wollborn
- Department of Anesthesiology and Critical Care, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg DE 79085, Germany.,Department of Anesthesiology, Perioperative and Pain Management, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Binghe Wang
- Department of Chemistry & Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
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19
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Lo CH, Lochhead P, Khalili H, Song M, Tabung FK, Burke KE, Richter JM, Giovannucci EL, Chan AT, Ananthakrishnan AN. Dietary Inflammatory Potential and Risk of Crohn's Disease and Ulcerative Colitis. Gastroenterology 2020; 159:873-883.e1. [PMID: 32389666 PMCID: PMC7502466 DOI: 10.1053/j.gastro.2020.05.011] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Inflammation is a potential mechanism through which diet modulates the onset of inflammatory bowel disease. We analyzed data from 3 large prospective cohorts to determine the effects of dietary inflammatory potential on the risk of developing Crohn's disease (CD) and ulcerative colitis (UC). METHODS We collected data from 166,903 women and 41,931 men in the Nurses' Health Study (1984-2014), Nurses' Health Study II (1991-2015), and Health Professionals Follow-up Study (1986-2012). Empirical dietary inflammatory pattern (EDIP) scores were calculated based on the weighted sums of 18 food groups obtained via food frequency questionnaires. Self-reported CD and UC were confirmed by medical record review. Cox proportional hazards models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS We documented 328 cases of CD and 428 cases of UC over 4,949,938 person-years of follow-up. The median age at IBD diagnosis was 55 years (range 29-85 years). Compared with participants in the lowest quartile of cumulative average EDIP score, those in the highest quartile (highest dietary inflammatory potential) had a 51% higher risk of CD (HR 1.51; 95% CI 1.10-2.07; Ptrend = .01). Compared with participants with persistently low EDIP scores (at 2 time points, separated by 8 years), those with a shift from a low to high inflammatory potential of diet or persistently consumed a proinflammatory diet had greater risk of CD (HR 2.05; 95% CI 1.10-3.79 and HR 1.77; 95% CI 1.10-2.84). In contrast, dietary inflammatory potential was not associated with the risk of developing UC (Ptrend = .62). CONCLUSIONS In an analysis of 3 large prospective cohorts, we found dietary patterns with high inflammatory potential to be associated with increased risk of CD but not UC.
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Affiliation(s)
- Chun-Han Lo
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Paul Lochhead
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA;,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Hamed Khalili
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA;,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Mingyang Song
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA;,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA;,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Fred K Tabung
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;,Department of Internal Medicine, Division of Medical Oncology, The Ohio State University College of Medicine and Comprehensive Cancer Center – James Cancer Hospital and Solove Research Institute, Columbus, Ohio, USA
| | - Kristin E Burke
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA;,Clinical and Translational Epidemiology Unit, 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
| | - Edward L Giovannucci
- 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
| | - Andrew T Chan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA;,Clinical and Translational Epidemiology Unit, 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
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
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20
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Yuan S, Larsson S. Causal associations of iron status with gout and rheumatoid arthritis, but not with inflammatory bowel disease. Clin Nutr 2020; 39:3119-3124. [PMID: 32044136 DOI: 10.1016/j.clnu.2020.01.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/11/2020] [Accepted: 01/24/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS We conducted a two-sample Mendelian randomization study to assess the associations of iron homeostasis with the risk of gout, rheumatoid arthritis and inflammatory bowel disease. METHODS Single-nucleotide polymorphisms for iron status were selected at the genome-wide significance level from a large genome-wide association study of 48 972 European-descent individuals. Summary-level data for gout, rheumatoid arthritis and inflammatory bowel disease were obtained from The Global Urate Genetics Consortium and two large genome-wide association studies, respectively. Inverse-variance weighted method with random-effects and sensitivity analyses were performed. RESULTS Genetic predisposition to high iron status was causally associated with higher odds of gout, lower odds of rheumatoid arthritis, but not associated with inflammatory bowel disease. The odds ratios of gout were 1.35 (95% confidence interval (CI), 1.00, 1.81; p = 0.047), 2.07 (95% CI, 1.23, 3.50; p = 0.006), 1.27 (95% CI, 1.07, 1.50; p = 0.007) and 0.69 (95% CI, 0.54, 0.90; p = 0.005) per one standard deviation increment of serum iron, ferritin, transferrin saturation, and transferrin levels, respectively. For rheumatoid arthritis, the corresponding odds ratios were 0.79 (95% CI, 0.65, 0.94; p = 0.010), 0.59 (95% CI, 0.40, 0.86; p = 0.007), 0.84 (95% CI, 0.75, 0.94; p = 0.003) and 1.28 (95% CI, 1.06, 1.55; p = 0.012). CONCLUSIONS Based on consistent findings for four iron biomarkers, genetically high iron status was positively associated with gout and inversely associated with rheumatoid arthritis. There was limited MR evidence supporting a causal association between iron status and inflammatory bowel disease.
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Affiliation(s)
- Shuai Yuan
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden; Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Susanna Larsson
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden; Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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21
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Peters V, Alizadeh BZ, de Vries JHM, Dijkstra G, Campmans-Kuijpers MJE. Nutritional Assessment in Inflammatory Bowel Disease (IBD)-Development of the Groningen IBD Nutritional Questionnaires (GINQ). Nutrients 2019; 11:E2739. [PMID: 31726688 PMCID: PMC6893781 DOI: 10.3390/nu11112739] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 10/30/2019] [Accepted: 11/07/2019] [Indexed: 12/15/2022] Open
Abstract
Diet plays a key role in the complex etiology and treatment of inflammatory bowel disease (IBD). Most existing nutritional assessment tools neglect intake of important foods consumed or omitted specifically by IBD patients or incorporate non-Western dietary habits, making the development of appropriate dietary guidelines for (Western) IBD patients difficult. Hence, we developed a food frequency questionnaire (FFQ), the Groningen IBD Nutritional Questionnaires (GINQ-FFQ); suitable to assess dietary intake in IBD patients. To develop the GINQ-FFQ, multiple steps were taken, including: identification of IBD specific foods, a literature search, and evaluation of current dietary assessment methods. Expert views were collected and in collaboration with Wageningen University, division of Human Nutrition and Health, this semi-quantitative FFQ was developed using standard methods to obtain a valid questionnaire. Next, the GINQ-FFQ was digitized into a secure web-based environment which also embeds additional nutritional and IBD related questions. The GINQ-FFQ is an online self-administered FFQ evaluating dietary intake, taking the previous month as a reference period. It consists of 121 questions on 218 food items. This paper describes the design process of the GINQ-FFQ which assesses dietary intake especially (but not exclusively) in IBD patients. Validation of the GINQ-FFQ is needed and planned in the near future.
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Affiliation(s)
- Vera Peters
- Department of Gastroenterology and Hepatology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands; (B.Z.A.); (G.D.); (M.J.C.-K.)
- Department of Epidemiology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Behrooz Z Alizadeh
- Department of Gastroenterology and Hepatology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands; (B.Z.A.); (G.D.); (M.J.C.-K.)
- Department of Epidemiology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Jeanne HM de Vries
- Division of Human Nutrition and Health, Wageningen University and Research, 6708 PB Wageningen, The Netherlands;
| | - Gerard Dijkstra
- Department of Gastroenterology and Hepatology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands; (B.Z.A.); (G.D.); (M.J.C.-K.)
| | - Marjo JE Campmans-Kuijpers
- Department of Gastroenterology and Hepatology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands; (B.Z.A.); (G.D.); (M.J.C.-K.)
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22
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Kobayashi Y, Ohfuji S, Kondo K, Fukushima W, Sasaki S, Kamata N, Yamagami H, Fujiwara Y, Suzuki Y, Hirota Y. Association between dietary iron and zinc intake and development of ulcerative colitis: A case-control study in Japan. J Gastroenterol Hepatol 2019; 34:1703-1710. [PMID: 30821862 DOI: 10.1111/jgh.14642] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/11/2019] [Accepted: 02/27/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM The prevalence of ulcerative colitis (UC) has been increasing in Japan. Trace elements, such as iron, zinc, magnesium, and copper, can cause digestive symptoms where there is a deficiency or excess. We focused on the dietary intake of trace elements and their associations with UC development. METHODS A multicenter, hospital-based case-control study was conducted in Japan. Cases were 127 newly diagnosed UC patients, and 171 age-matched and sex-matched hospital controls were recruited. We considered that UC patients had potentially changed their dietary habits due to disease symptoms. The dietary habits were investigated using a self-administered diet history questionnaire to analyze the dietary intakes and frequencies at two points, the previous 1 month and 1 year before. RESULTS In the assessment of dietary habits 1 year before, the highest intake of iron showed an increased odds ratio (OR) for UC on multivariate analysis (OR = 4.05, 95% confidence interval, 1.46-11.2, P < 0.01). The highest intake of zinc 1 year before showed a decreased OR for UC (OR = 0.39, 95% confidence interval, 0.18-0.85, P = 0.01). Intakes of magnesium and copper had no significant association with UC. Because most UC cases had experienced the first symptom of UC within the previous 11 months, these intakes at 1 year before represented an association with pre-illness dietary habits. CONCLUSION A high intake of iron has some effect on the development of UC. In contrast, a high intake of zinc has a protective effect on the development of UC.
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Affiliation(s)
- Yumie Kobayashi
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Satoko Ohfuji
- Department of Public Health, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Kyoko Kondo
- Osaka City University Hospital Administration Division, Osaka, Japan
| | - Wakaba Fukushima
- Department of Public Health, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Satoshi Sasaki
- Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Noriko Kamata
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Hirokazu Yamagami
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yasuhiro Fujiwara
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yasuo Suzuki
- Department of Internal Medicine, Sakura Medical Center, Toho University, Chiba, Japan
| | - Yoshio Hirota
- Department of Public Health, Osaka City University Graduate School of Medicine, Osaka, Japan.,College of Healthcare Management, Fukuoka, Japan
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23
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Markota A, Metzger R, Heiseke AF, Jandl L, Dursun E, Eisenächer K, Reindl W, Haller D, Krug AB. Comparison of iron-reduced and iron-supplemented semisynthetic diets in T cell transfer colitis. PLoS One 2019; 14:e0218332. [PMID: 31276514 PMCID: PMC6611680 DOI: 10.1371/journal.pone.0218332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/30/2019] [Indexed: 12/18/2022] Open
Abstract
Clinical observations in inflammatory bowel disease patients and experimental studies in rodents suggest that iron in the intestinal lumen derived from iron-rich food or oral iron supplementation could exacerbate inflammation and that iron depletion from the diet could be protective. To test the hypothesis that dietary iron reduction is protective against colitis development, the impact of iron reduction in the diet below 10 mg/kg on the course of CD4+ CD62L+ T cell transfer colitis was investigated in adult C57BL/6 mice. Weight loss as well as clinical and histological signs of inflammation were comparable between mice pretreated with semisynthetic diets with either < 10mg/kg iron content or supplemented with 180 mg/kg iron in the form of ferrous sulfate or hemin. Accumulation and activation of Ly6Chigh monocytes, changes in dendritic cell subset composition and induction of proinflammatory Th1/Th17 cells in the inflamed colon were not affected by the iron content of the diets. Thus, dietary iron reduction did not protect adult mice against severe intestinal inflammation in T cell transfer induced colitis.
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Affiliation(s)
- Anamarija Markota
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-University Munich, Martinsried, Germany
| | - Rebecca Metzger
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-University Munich, Martinsried, Germany
| | - Alexander F. Heiseke
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-University Munich, Martinsried, Germany
| | - Lisa Jandl
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-University Munich, Martinsried, Germany
| | - Ezgi Dursun
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-University Munich, Martinsried, Germany
| | - Katharina Eisenächer
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-University Munich, Martinsried, Germany
| | - Wolfgang Reindl
- Klinikum Mannheim, II. Medizinische Klinik, Mannheim, Germany
| | - Dirk Haller
- Chair for Nutrition and Immunology, Technical University Munich, Freising, Germany
| | - Anne B. Krug
- Institute for Immunology, Biomedical Center, Ludwig-Maximilians-University Munich, Martinsried, Germany
- * E-mail:
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24
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M'Koma AE. The Multifactorial Etiopathogeneses Interplay of Inflammatory Bowel Disease: An Overview. GASTROINTESTINAL DISORDERS 2019; 1:75-105. [PMID: 37577036 PMCID: PMC10416806 DOI: 10.3390/gidisord1010007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The gastrointestinal system where inflammatory bowel disease occurs is central to the immune system where the innate and the adaptive/acquired immune systems are balanced in interactions with gut microbes under homeostasis conditions. This article overviews the high-throughput research screening on multifactorial interplay between genetic risk factors, the intestinal microbiota, urbanization, modernization, Westernization, the environmental influences and immune responses in the etiopathogenesis of inflammatory bowel disease in humans. Inflammatory bowel disease is an expensive multifactorial debilitating disease that affects thousands new people annually worldwide with no known etiology or cure. The conservative therapeutics focus on the established pathology where the immune dysfunction and gut injury have already happened but do not preclude or delay the progression. Inflammatory bowel disease is evolving globally and has become a global emergence disease. It is largely known to be a disease in industrial-urbanized societies attributed to modernization and Westernized lifestyle associated with environmental factors to genetically susceptible individuals with determined failure to process certain commensal antigens. In the developing nations, increasing incidence and prevalence of inflammatory bowel disease (IBD) has been associated with rapid urbanization, modernization and Westernization of the population. In summary, there are identified multiple associations to host exposures potentiating the landscape risk hazards of inflammatory bowel disease trigger, that include: Western life-style and diet, host genetics, altered innate and/or acquired/adaptive host immune responses, early-life microbiota exposure, change in microbiome symbiotic relationship (dysbiosis/dysbacteriosis), pollution, changing hygiene status, socioeconomic status and several other environmental factors have long-standing effects/influence tolerance. The ongoing multipronged robotic studies on gut microbiota composition disparate patterns between the rural vs. urban locations may help elucidate and better understand the contribution of microbiome disciplines/ecology and evolutionary biology in potentially protecting against the development of inflammatory bowel disease.
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Affiliation(s)
- Amosy E M'Koma
- Meharry Medical College School of Medicine, Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Nashville, TN 37208, USA
- Vanderbilt University School of Medicine, Department of Surgery, Colon and Rectal Surgery, Nashville, TN 37232, USA
- The American Society of Colon and Rectal Surgeons (ASCRS), Arlington Heights, IL 60005, USA
- The American Gastroenterological Association (AGA), Bethesda, MD 20814, USA
- Vanderbilt-Ingram Cancer Center (VICC), Vanderbilt University Medical Center, Nashville, TN 37232, USA
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25
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Khalili H, Chan SSM, Lochhead P, Ananthakrishnan AN, Hart AR, Chan AT. The role of diet in the aetiopathogenesis of inflammatory bowel disease. Nat Rev Gastroenterol Hepatol 2018; 15:525-535. [PMID: 29789682 PMCID: PMC6397648 DOI: 10.1038/s41575-018-0022-9] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Crohn's disease and ulcerative colitis, collectively known as IBD, are chronic inflammatory disorders of the gastrointestinal tract. Although the aetiopathogenesis of IBD is largely unknown, it is widely thought that diet has a crucial role in the development and progression of IBD. Indeed, epidemiological and genetic association studies have identified a number of promising dietary and genetic risk factors for IBD. These preliminary studies have led to major interest in investigating the complex interaction between diet, host genetics, the gut microbiota and immune function in the pathogenesis of IBD. In this Review, we discuss the recent epidemiological, gene-environment interaction, microbiome and animal studies that have explored the relationship between diet and the risk of IBD. In addition, we highlight the limitations of these prior studies, in part by explaining their contradictory findings, and review future directions.
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Affiliation(s)
- Hamed Khalili
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA
| | - Simon S. M. Chan
- Department of Medicine, Norwich Medical School, University of East Anglia, Norwich, United Kingdom.,Department of Gastroenterology, Norfolk and Norwich University Hospital NHS Trust, Norwich, United Kingdom
| | - Paul Lochhead
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School
| | - Ashwin N. Ananthakrishnan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA
| | - Andrew R. Hart
- Department of Medicine, Norwich Medical School, University of East Anglia, Norwich, United Kingdom.,Department of Gastroenterology, Norfolk and Norwich University Hospital NHS Trust, Norwich, United Kingdom
| | - Andrew T. Chan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School.,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA.,Channing Division of Network Medicine, Harvard Medical School, Boston MA, USA.,Broad Institute, Cambridge MA, USA.,
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26
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Pumping Iron: Exploring Novel Gene-environment Interactions in the Inflammatory Bowel Diseases. Inflamm Bowel Dis 2017; 23:1096-1097. [PMID: 28604416 DOI: 10.1097/mib.0000000000001164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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