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Estevinho MM, Midya V, Cohen-Mekelburg S, Allin KH, Fumery M, Pinho SS, Colombel JF, Agrawal M. Emerging role of environmental pollutants in inflammatory bowel disease risk, outcomes and underlying mechanisms. Gut 2024:gutjnl-2024-332523. [PMID: 39179372 DOI: 10.1136/gutjnl-2024-332523] [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: 06/06/2024] [Accepted: 08/09/2024] [Indexed: 08/26/2024]
Abstract
Epidemiological and translational data increasingly implicate environmental pollutants in inflammatory bowel disease (IBD). Indeed, the global incidence of IBD has been rising, particularly in developing countries, in parallel with the increased use of chemicals and synthetic materials in daily life and escalating pollution levels. Recent nationwide and ecological studies have reported associations between agricultural pesticides and IBD, particularly Crohn's disease. Exposure to other chemical categories has also been linked with an increased risk of IBD. To synthesise available data and identify knowledge gaps, we conducted a systematic review of human studies that reported on the impact of environmental pollutants on IBD risk and outcomes. Furthermore, we summarised in vitro data and animal studies investigating mechanisms underlying these associations. The 32 included human studies corroborate that heavy and transition metals, except zinc, air pollutants, per- and polyfluorinated substances, and pesticides are associated with an increased risk of IBD, with exposure to air pollutants being associated with disease-related adverse outcomes as well. The narrative review of preclinical studies suggests several overlapping mechanisms underlying these associations, including increased intestinal permeability, systemic inflammation and dysbiosis. A consolidated understanding of the impact of environmental exposures on IBD risk and outcomes is key to the identification of potentially modifiable risk factors and to inform strategies towards prediction, prevention and mitigation of IBD.
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Affiliation(s)
- Maria Manuela Estevinho
- Department of Gastroenterology, Unidade Local de Saúde Gaia Espinho, Vila Nova de Gaia, Portugal
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Vishal Midya
- Department of Environmental Medicine and Climate Science, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Shirley Cohen-Mekelburg
- Division of Gastroenterology and Hepatology, University of Michigan Medicine, Ann Arbor, Michigan, USA
- VA Center for Clinical Management Research, VA Ann Arbor Health Care System, Ann Arbor, Michigan, USA
| | - Kristine Højgaard Allin
- Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT), Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
- Department of Gastroenterology and Hepatology, Aalborg University Hospital, Aalborg, Denmark
| | - Mathurin Fumery
- Department of Gastroenterology, CHU Amiens and PériTox, UMR-I 01 INERIS, Picardie Jules Verne University, Amiens, France
| | - Salome S Pinho
- i3S, Institute for Research and Innovation in Health, Porto, Portugal
- ICBAS-School of Medicine and Biomedical Sciences, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Jean-Frederic Colombel
- The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Manasi Agrawal
- Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT), Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
- The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Chang C, Louie A, Zhou Y, Gupta R, Liang F, Xanthou G, Ereso J, Koletic C, Yang JC, Sedighian F, Lagishetty V, Arias-Jayo N, Altuwayjiri A, Tohidi R, Navab M, Reddy ST, Sioutas C, Hsiai T, Araujo JA, Jacobs JP. Ambient Particulate Matter Induces In Vitro Toxicity to Intestinal Epithelial Cells without Exacerbating Acute Colitis Induced by Dextran Sodium Sulfate or 2,4,6-Trinitrobenzenesulfonic Acid. Int J Mol Sci 2024; 25:7184. [PMID: 39000289 PMCID: PMC11241079 DOI: 10.3390/ijms25137184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/14/2024] [Accepted: 06/20/2024] [Indexed: 07/16/2024] Open
Abstract
Inflammatory bowel disease (IBD) is an immunologically complex disorder involving genetic, microbial, and environmental risk factors. Its global burden has continued to rise since industrialization, with epidemiological studies suggesting that ambient particulate matter (PM) in air pollution could be a contributing factor. Prior animal studies have shown that oral PM10 exposure promotes intestinal inflammation in a genetic IBD model and that PM2.5 inhalation exposure can increase intestinal levels of pro-inflammatory cytokines. PM10 and PM2.5 include ultrafine particles (UFP), which have an aerodynamic diameter of <0.10 μm and biophysical and biochemical properties that promote toxicity. UFP inhalation, however, has not been previously studied in the context of murine models of IBD. Here, we demonstrated that ambient PM is toxic to cultured Caco-2 intestinal epithelial cells and examined whether UFP inhalation affected acute colitis induced by dextran sodium sulfate and 2,4,6-trinitrobenzenesulfonic acid. C57BL/6J mice were exposed to filtered air (FA) or various types of ambient PM reaerosolized in the ultrafine size range at ~300 μg/m3, 6 h/day, 3-5 days/week, starting 7-10 days before disease induction. No differences in weight change, clinical disease activity, or histology were observed between the PM and FA-exposed groups. In conclusion, UFP inhalation exposure did not exacerbate intestinal inflammation in acute, chemically-induced colitis models.
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Affiliation(s)
- Candace Chang
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.L.); (R.G.); (M.N.); (S.T.R.); (T.H.)
- Department of Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
- Molecular Toxicology Interdepartmental Program, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Allen Louie
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.L.); (R.G.); (M.N.); (S.T.R.); (T.H.)
- Department of Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
- Molecular Toxicology Interdepartmental Program, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Yi Zhou
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
- West China Medical Center, Sichuan University, Chengdu 610017, China
| | - Rajat Gupta
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.L.); (R.G.); (M.N.); (S.T.R.); (T.H.)
- Department of Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
- Molecular Toxicology Interdepartmental Program, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Fengting Liang
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Georgina Xanthou
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Jason Ereso
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Carolina Koletic
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Julianne Ching Yang
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Farzaneh Sedighian
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Venu Lagishetty
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Nerea Arias-Jayo
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
| | - Abdulmalik Altuwayjiri
- USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA; (A.A.); (R.T.); (C.S.)
- Department of Civil and Environmental Engineering, College of Engineering, Majmaah University, Al-Majmaah 11952, Saudi Arabia
| | - Ramin Tohidi
- USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA; (A.A.); (R.T.); (C.S.)
- Air Quality Planning and Science Division, California Air Resources Board, 4001 Iowa Avenue, Riverside, CA 92507, USA
| | - Mohamad Navab
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.L.); (R.G.); (M.N.); (S.T.R.); (T.H.)
| | - Srinivasa Tadiparthi Reddy
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.L.); (R.G.); (M.N.); (S.T.R.); (T.H.)
- West China Medical Center, Sichuan University, Chengdu 610017, China
- Molecular & Medical Pharmacology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Constantinos Sioutas
- USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA; (A.A.); (R.T.); (C.S.)
| | - Tzung Hsiai
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.L.); (R.G.); (M.N.); (S.T.R.); (T.H.)
- Henry Samueli School of Engineering, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Jesus A. Araujo
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.L.); (R.G.); (M.N.); (S.T.R.); (T.H.)
- Department of Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
- Molecular Toxicology Interdepartmental Program, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Jonathan P. Jacobs
- Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; (C.C.); (Y.Z.); (F.L.); (G.X.); (J.E.); (C.K.); (J.C.Y.); (F.S.); (V.L.); (N.A.-J.)
- Molecular Toxicology Interdepartmental Program, University of California Los Angeles, Los Angeles, CA 90095, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, Veterans Administration Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
- Goodman-Luskin Microbiome Center, University of California Los Angeles, Los Angeles, CA 90095, USA
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Ran Z, Yang J, Liu L, Wu S, An Y, Hou W, Cheng T, Zhang Y, Zhang Y, Huang Y, Zhang Q, Wan J, Li X, Xing B, Ye Y, Xu P, Chen Z, Zhao J, Li R. Chronic PM 2.5 exposure disrupts intestinal barrier integrity via microbial dysbiosis-triggered TLR2/5-MyD88-NLRP3 inflammasome activation. ENVIRONMENTAL RESEARCH 2024; 258:119415. [PMID: 38906446 DOI: 10.1016/j.envres.2024.119415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/31/2024] [Accepted: 06/11/2024] [Indexed: 06/23/2024]
Abstract
BACKGROUND PM2.5, a known public health risk, is increasingly linked to intestinal disorders, however, the mechanisms of its impact are not fully understood. PURPOSE This study aimed to explore the impact of chronic PM2.5 exposure on intestinal barrier integrity and to uncover the underlying molecular mechanisms. METHODS C57BL/6 J mice were exposed to either concentrated ambient PM2.5 (CPM) or filtered air (FA) for six months to simulate urban pollution conditions. We evaluated intestinal barrier damage, microbial shifts, and metabolic changes through histopathology, metagenomics, and metabolomics. Analysis of the TLR signaling pathway was also conducted. RESULTS The mean concentration of PM2.5 in the CPM exposure chamber was consistently measured at 70.9 ± 26.8 μg/m³ throughout the study period. Our findings show that chronic CPM exposure significantly compromises intestinal barrier integrity, as indicated by reduced expression of the key tight junction proteins Occludin and Tjp1/Zo-1. Metagenomic sequencing revealed significant shifts in the microbial landscape, identifying 35 differentially abundant species. Notably, there was an increase in pro-inflammatory nongastric Helicobacter species and a decrease in beneficial bacteria, such as Lactobacillus intestinalis, Lactobacillus sp. ASF360, and Eubacterium rectale. Metabolomic analysis further identified 26 significantly altered metabolites commonly associated with intestinal diseases. A strong correlation between altered bacterial species and metabolites was also observed. For example, 4 Helicobacter species all showed positive correlations with 13 metabolites, including Lactate, Bile acids, Pyruvate and Glutamate. Additionally, increased expression levels of TLR2, TLR5, Myd88, and NLRP3 proteins were noted, and their expression patterns showed a strong correlation, suggesting a possible involvement of the TLR2/5-MyD88-NLRP3 signaling pathway. CONCLUSIONS Chronic CPM exposure induces intestinal barrier dysfunction, microbial dysbiosis, metabolic imbalance, and activation of the TLR2/5-MyD88-NLRP3 inflammasome. These findings highlight the urgent need for intervention strategies to mitigate the detrimental effects of air pollution on intestinal health and identify potential therapeutic targets.
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Affiliation(s)
- Zihan Ran
- Shanghai Key Laboratory of Molecular Imaging, Zhoupu Hospital, Department of Pathology, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China
| | - Jingcheng Yang
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China; Greater Bay Area Institute of Precision Medicine, 115 Jiaoxi Road, Guangzhou 511458, China
| | - Liang Liu
- Clinical Research Unit, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shaobo Wu
- Department of Laboratory Medicine, Tinglin Hospital of Jinshan District, No. 80 Siping North Road, Shanghai 201505, China
| | - YanPeng An
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Wanwan Hou
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Tianyuan Cheng
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Youyi Zhang
- School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai 200032, China
| | - Yiqing Zhang
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yechao Huang
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Qianyue Zhang
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China
| | - Jiaping Wan
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China
| | - Xuemei Li
- Shanghai Key Laboratory of Molecular Imaging, Zhoupu Hospital, Department of Pathology, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China
| | - Baoling Xing
- Shanghai Key Laboratory of Molecular Imaging, Zhoupu Hospital, Department of Pathology, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China
| | - Yuchen Ye
- Shanghai Key Laboratory of Molecular Imaging, Zhoupu Hospital, Department of Pathology, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China
| | - Penghao Xu
- School of Biological Sciences, Georgia Insitute of Technology, Atlanta, GA, USA
| | - Zhenghu Chen
- Shanghai Key Laboratory of Molecular Imaging, Zhoupu Hospital, Department of Pathology, Shanghai University of Medicine and Health Sciences, 279 Zhouzhu Road, Shanghai 201318, China.
| | - Jinzhuo Zhao
- School of Public Health and the Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai 200032, China.
| | - Rui Li
- The Core Laboratory in Medical Center of Clinical Research, Department of Molecular Diagnostic & Endocrinology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China.
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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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Fu C, Wang Q, Chen Y, Zhang Y. Exploring the causal relationship between airborne particulate matter and ulcerative colitis: A two-sample mendelian randomization study. PLoS One 2024; 19:e0300066. [PMID: 38457365 PMCID: PMC10923436 DOI: 10.1371/journal.pone.0300066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/16/2024] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND Existing research has demonstrated links between airborne particulate matter and ulcerative colitis (UC) onset. Through Mendelian randomization, this study aims to further delineate the causal association between specific types of airborne particulates and UC. METHODS A two-sample Mendelian randomization analysis was undertaken to investigate the causality between airborne particulate matter and UC. Genetic datasets for both airborne particulates and UC were derived from accessible genome-wide association studies (GWAS). We employed a range of MR techniques, such as inverse variance weighted (IVW), weighted median, MR-Egger, and Wald Ratio, to validate the causality. In addition, sensitivity assessments were executed to ensure result reliability. RESULTS The data indicate a probable positive correlation between PM2.5 exposure and UC risk (OR: 3.6; 95% CI: [1.2-11.3]; P = 0.026). The statistical strength for causal determination via the IVW approach stood at 0.87, with a Type I error rate set at 0.025. Assessments using Cochran's Q test, MR-Egger intercept, MR-PRESSO, and leave-one-out sensitivity analyses did not identify notable heterogeneity, pleiotropy, or biases in the overall relationship between PM2.5 and UC. Furthermore, the MR-Steiger assessment indicated that PM2.5 exposure level determinants predominantly affect UC vulnerability. CONCLUSION The findings underscore the potential involvement of PM2.5 in UC pathogenesis.
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Affiliation(s)
- Chong Fu
- Department of Gastroenterology, Anqing Municipal Hospital, Anqing, PR China
| | - Qi Wang
- Department of Gastroenterology, Anqing Municipal Hospital, Anqing, PR China
| | - Yan Chen
- Department of Gastroenterology, Anqing Municipal Hospital, Anqing, PR China
| | - Yanping Zhang
- Department of Gastroenterology, Anqing Municipal Hospital, Anqing, PR China
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6
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Ren C, Carrillo ND, Cryns VL, Anderson RA, Chen M. Environmental pollutants and phosphoinositide signaling in autoimmunity. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133080. [PMID: 38091799 PMCID: PMC10923067 DOI: 10.1016/j.jhazmat.2023.133080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/16/2023] [Accepted: 11/22/2023] [Indexed: 02/08/2024]
Abstract
Environmental pollution stands as one of the most critical challenges affecting human health, with an estimated mortality rate linked to pollution-induced non-communicable diseases projected to range from 20% to 25%. These pollutants not only disrupt immune responses but can also trigger immunotoxicity. Phosphoinositide signaling, a pivotal regulator of immune responses, plays a central role in the development of autoimmune diseases and exhibits high sensitivity to environmental stressors. Among these stressors, environmental pollutants have become increasingly prevalent in our society, contributing to the initiation and exacerbation of autoimmune conditions. In this review, we summarize the intricate interplay between phosphoinositide signaling and autoimmune diseases within the context of environmental pollutants and contaminants. We provide an up-to-date overview of stress-induced phosphoinositide signaling, discuss 14 selected examples categorized into three groups of environmental pollutants and their connections to immune diseases, and shed light on the associated phosphoinositide signaling pathways. Through these discussions, this review advances our understanding of how phosphoinositide signaling influences the coordinated immune response to environmental stressors at a biological level. Furthermore, it offers valuable insights into potential research directions and therapeutic targets aimed at mitigating the impact of environmental pollutants on the pathogenesis of autoimmune diseases. SYNOPSIS: Phosphoinositide signaling at the intersection of environmental pollutants and autoimmunity provides novel insights for managing autoimmune diseases aggravated by pollutants.
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Affiliation(s)
- Chang Ren
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Noah D Carrillo
- Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Vincent L Cryns
- Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA; University of Wisconsin Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Richard A Anderson
- University of Wisconsin Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Mo Chen
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China.
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7
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Tavabie O, Clough J, King J, Nicholas V, Kumar A. Challenges of developing a green gastroenterology evidence base and how trainee research networks can fill the gaps. Frontline Gastroenterol 2023:flgastro-2023-102497. [DOI: 10.1136/flgastro-2023-102497] [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] [Indexed: 12/16/2023] Open
Abstract
Trainee research networks are a collaborative effort to enable high-quality multicentre audits or research that is more widely accessible to trainees. Such networks lead, design and deliver research at a far higher scale than could be achieved locally and are carried out solely by trainees. There is an increasing focus on delivering research that is not only environmentally sustainable but also focuses on areas that can reduce the carbon footprint of service provision in gastroenterology and hepatology. In this manuscript, we performed a scoping review to understand the current evidence base of the impact of gastroenterology and hepatology services on the environment as well as exploring any association between pollution and climate change with gastrointestinal and liver disease. We further discuss the barriers that researchers face in delivering environmentally sustainable research, the limitation in clinical guidelines related to practicing environmentally sustainable gastroenterology and hepatology and how the trainee research networks are ideally placed to initiate change by developing, disseminating and implementing best practice in ‘green Gastroenterology’.
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Feathers A, Lovasi GS, Grigoryan Z, Beem K, Datta SK, Faleck DM, Socci T, Maggi R, Swaminath A. Crohn's Disease Mortality and Ambient Air Pollution in New York City. Inflamm Bowel Dis 2023:izad243. [PMID: 37934758 DOI: 10.1093/ibd/izad243] [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: 03/08/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND The worldwide increase in Crohn's disease (CD) has accelerated alongside rising urbanization and accompanying decline in air quality. Air pollution affects epithelial cell function, modulates immune responses, and changes the gut microbiome composition. In epidemiologic studies, ambient air pollution has a demonstrated relationship with incident CD and hospitalizations. However, no data exist on the association of CD-related death and air pollution. METHODS We conducted an ecologic study comparing the number of CD-related deaths of individuals residing in given zip codes, with the level of air pollution from nitric oxide, nitrogen dioxide, sulfur dioxide (SO2), and fine particulate matter. Air pollution was measured by the New York Community Air Survey. We conducted Pearson correlations and a Poisson regression with robust standard errors. Each pollution component was modeled separately. RESULTS There was a higher risk of CD-related death in zip codes with higher levels of SO2 (incidence rate ratio [IRR], 1.16; 95% confidence interval [CI], 1.06-1.27). Zip codes with higher percentage of Black or Latinx residents were associated with lower CD-related death rates in the SO2 model (IRR, 0.58; 95% CI, 0.35-0.98; and IRR, 0.13; 95% CI, 0.05-0.30, respectively). There was no significant association of either population density or area-based income with the CD-related death rate. CONCLUSIONS In New York City from 1993 to 2010, CD-related death rates were higher among individuals from neighborhoods with higher levels of SO2 but were not associated with levels of nitric oxide, nitrogen dioxide, and fine particulate matter. These findings raise an important and timely public health issue regarding exposure of CD patients to environmental SO2, warranting further exploration.
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Affiliation(s)
| | - Gina S Lovasi
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Zoya Grigoryan
- Department of Internal Medicine, Lenox Hill Hospital, New York, NY, USA
| | | | - Samit K Datta
- Gastroenterology, Department at Skagit Regional Health in Mt. Vernon, WA
| | - David M Faleck
- Gastroenterology, Hepatology and Nutrition Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Thomas Socci
- Division of Gastroenterology, Lenox Hill Hospital, New York, NY, USA
| | - Rachel Maggi
- Division of Gastroenterology, Lenox Hill Hospital, New York, NY, USA
| | - Arun Swaminath
- Division of Gastroenterology, Lenox Hill Hospital, New York, NY, USA
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9
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Meng G, Monaghan TM, Duggal NA, Tighe P, Peerani F. Microbial-Immune Crosstalk in Elderly-Onset Inflammatory Bowel Disease: Unchartered Territory. J Crohns Colitis 2023; 17:1309-1325. [PMID: 36806917 DOI: 10.1093/ecco-jcc/jjad025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Indexed: 02/23/2023]
Abstract
Elderly-onset inflammatory bowel disease [IBD] patients exhibit a distinct natural history compared to younger IBD patients, with unique disease phenotypes, differential responses to therapy, and increased surgical morbidity and mortality. Despite the foreseeable high demand for personalized medicine and specialized IBD care in the elderly, current paradigms of IBD management fail to capture the required nuances of care for elderly-onset IBD patients. Our review postulates the roles of systemic and mucosal immunosenescence, inflammageing and a dysbiotic microbial ecosystem in the pathophysiology of elderly-onset IBD. Ultimately, a better understanding of elderly-onset IBD can lead to improved patient outcomes and the tailoring of future preventative and treatment strategies.
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Affiliation(s)
- Guanmin Meng
- Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Tanya M Monaghan
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK
- Nottingham Digestive Diseases Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - Niharika A Duggal
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Paddy Tighe
- School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Farhad Peerani
- Division of Gastroenterology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
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10
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Michaux M, Chan JM, Bergmann L, Chaves LF, Klinkenberg B, Jacobson K. Spatial cluster mapping and environmental modeling in pediatric inflammatory bowel disease. World J Gastroenterol 2023; 29:3688-3702. [PMID: 37398882 PMCID: PMC10311617 DOI: 10.3748/wjg.v29.i23.3688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/31/2023] [Accepted: 04/23/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Geographical (geospatial) clusters have been observed in inflammatory bowel disease (IBD) incidence and linked to environmental determinants of disease, but pediatric spatial patterns in North America are unknown. We hypothesized that we would identify geospatial clusters in the pediatric IBD (PIBD) population of British Columbia (BC), Canada and associate incidence with ethnicity and environmental exposures.
AIM To identify PIBD clusters and model how spatial patterns are associated with population ethnicity and environmental exposures.
METHODS One thousand one hundred eighty-three patients were included from a BC Children’s Hospital clinical registry who met the criteria of diagnosis with IBD ≤ age 16.9 from 2001–2016 with a valid postal code on file. A spatial cluster detection routine was used to identify areas with similar incidence. An ecological analysis employed Poisson rate models of IBD, Crohn’s disease (CD), and ulcerative colitis (UC) cases as functions of areal population ethnicity, rurality, average family size and income, average population exposure to green space, air pollution, and vitamin-D weighted ultraviolet light from the Canadian Environmental Health Research Consortium, and pesticide applications.
RESULTS Hot spots (high incidence) were identified in Metro Vancouver (IBD, CD, UC), southern Okanagan regions (IBD, CD), and Vancouver Island (CD). Cold spots (low incidence) were identified in Southeastern BC (IBD, CD, UC), Northern BC (IBD, CD), and on BC’s coast (UC). No high incidence hot spots were detected in the densest urban areas. Modeling results were represented as incidence rate ratios (IRR) with 95%CI. Novel risk factors for PIBD included fine particulate matter (PM2.5) pollution (IRR = 1.294, CI = 1.113-1.507, P < 0.001) and agricultural application of petroleum oil to orchards and grapes (IRR = 1.135, CI = 1.007-1.270, P = 0.033). South Asian population (IRR = 1.020, CI = 1.011-1.028, P < 0.001) was a risk factor and Indigenous population (IRR = 0.956, CI = 0.941-0.971, P < 0.001), family size (IRR = 0.467, CI = 0.268-0.816, P = 0.007), and summer ultraviolet (IBD = 0.9993, CI = 0.9990–0.9996, P < 0.001) were protective factors as previously established. Novel risk factors for CD, as for PIBD, included: PM2.5 air pollution (IRR = 1.230, CI = 1 .056-1.435, P = 0.008) and agricultural petroleum oil (IRR = 1.159, CI = 1.002-1.326, P = 0.038). Indigenous population (IRR = 0.923, CI = 0.895–0.951, P < 0.001), as previously established, was a protective factor. For UC, rural population (UC IRR = 0.990, CI = 0.983-0.996, P = 0.004) was a protective factor and South Asian population (IRR = 1.054, CI = 1.030–1.079, P < 0.001) a risk factor as previously established.
CONCLUSION PIBD spatial clusters were identified and associated with known and novel environmental determinants. The identification of agricultural pesticides and PM2.5 air pollution needs further study to validate these observations.
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Affiliation(s)
- Mielle Michaux
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Faculty of Medicine, British Columbia Children’s Hospital, University of British Columbia, Vancouver V6H 3V4, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, British Columbia Children’s Hospital, Vancouver V5Z 4H4, British Columbia, Canada
| | - Justin M Chan
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Faculty of Medicine, British Columbia Children’s Hospital, University of British Columbia, Vancouver V6H 3V4, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, British Columbia Children’s Hospital, Vancouver V5Z 4H4, British Columbia, Canada
| | - Luke Bergmann
- Department of Geography, University of British Columbia, Vancouver V6T 1Z2, British Columbia, Canada
| | - Luis F Chaves
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, United States
| | - Brian Klinkenberg
- Department of Geography, University of British Columbia, Vancouver V6T 1Z2, British Columbia, Canada
| | - Kevan Jacobson
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Faculty of Medicine, British Columbia Children’s Hospital, University of British Columbia, Vancouver V6H 3V4, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, British Columbia Children’s Hospital, Vancouver V5Z 4H4, British Columbia, Canada
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver V6T 1Z3, British Columbia, Canada
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11
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Ma L, Lin Z, Wang J, Ye R, Li Y, Chen P, Yuan Z, Yang L, Miao L, Li J. Association between short-term exposure to ambient air pollution and number of outpatient Helicobacter pylori infection visits. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:22808-22815. [PMID: 36306069 DOI: 10.1007/s11356-022-23826-8] [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: 07/01/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Helicobacter pylori infection (HPI) is an important risk factor of gastrointestinal diseases, but factors leading to it are still not fully understood. To investigate the association between short-term exposure to air pollution and HPI during outpatient visits, we collected daily data for HPI outpatient visits and air pollutant concentrations during 2014-2021 in Hefei, Anhui Province, China. A time-stratified case-crossover design was performed to analyze the acute impacts of air pollution on HPI outpatient visits. We also explored potential effect modifiers. A total of 9072 outpatient visits were recorded. We found positive and statistically significant associations of acute exposure to nitrogen dioxide (NO2), sulfur dioxide (SO2), and carbon monoxide (CO) with HPI outpatient visits. Threshold concentrations of the three pollutants with same-day exposure (lag 0 day) for outpatient visits were 37 μg/m3 for NO2, 8 μg/m3 for SO2, and 0.8 mg/m3 for CO. The odds ratios for HPI outpatient visits at the 95th percentile of NO2, SO2, and CO against the thresholds were 1.207 (1.120-1.302), 1.175 (1.052-1.312), and 1.110 (1.019-1.209), respectively. The associations were more evident in patients older than 45 years, females, with health insurance, and in cold seasons. Null associations of exposure to either ozone (O3) or particulate matter (PM) were observed. In summary, short-term exposure to NO2, SO2, and CO above certain concentrations, but not PM or O3, may trigger the increased risk of outpatient visits due to HP infection in Chinese population.
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Affiliation(s)
- Lizuo Ma
- Department of Geriatrics, First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, 230022, Anhui Province, China
| | - Zhijing Lin
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Jiaoxue Wang
- Department of Gastroenterology, The 901St Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Hefei, 230032, China
| | - Ruirui Ye
- Department of General Practice, First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Yuefang Li
- Department of Geriatrics, The 901St Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Hefei, 230032, China
| | - Ping Chen
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Zhi Yuan
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Liyan Yang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Lin Miao
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Jiehua Li
- Department of Geriatrics, First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, 230022, Anhui Province, China.
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12
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Park SB, Kim EA, Kim KY, Koh B. Induction of toxicity in human colon cells and organoids by size- and composition-dependent road dust. RSC Adv 2023; 13:2833-2840. [PMID: 36756445 PMCID: PMC9845984 DOI: 10.1039/d2ra07500h] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/03/2023] [Indexed: 01/19/2023] Open
Abstract
Environmental pollution, including the annual resurgence of particulate matter derived from road dust, is a serious issue worldwide. Typically, the size of road dust is less than 10 μm; thus, road dust can penetrate into human organs, including the brain, through inhalation and intake by mouth. Therefore, the toxicity of road dust has been intensively studied in vitro and in vivo. However, in vitro systems, including 2D cell cultures, cannot mimic complex human organs, and there are several discrepancies between in vivo and human systems. Here, we used human colon cells and organoids to evaluate the cytotoxicity of particulate matter derived from road dust. The toxicity of road dust collected in industrialized and high traffic areas and NIST urban particulate matter reference samples were evaluated in 2D and 3D human colon cells as well as colon organoids and their characteristics were carefully examined. Data suggest that the size and elemental compositions of road dust can correlate with colon organoid toxicity, and thus, a more careful assessment of the size and elemental compositions of road dust should be conducted to predict its effect on human health.
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Affiliation(s)
- Sung Bum Park
- Biotechnology and Therapeutics Division, Korea Research Institute of Chemical Technology 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
| | - Eun-Ah Kim
- National Assembly Futures InstituteMembers Office Bldg, 1 Uisadang-daero, Yeongdeungpo-guSeoul07233Republic of Korea
| | - Ki Young Kim
- Biotechnology and Therapeutics Division, Korea Research Institute of Chemical Technology 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
| | - Byumseok Koh
- Biotechnology and Therapeutics Division, Korea Research Institute of Chemical Technology 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
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13
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Liu Y, Zeng S, Huang C, Wang C, Zhu J, Peng J, Ding F, Li J, Qin G, Chen J. Indoor Solid Fuel Use and Non-Neoplastic Digestive System Diseases: A Population-Based Cohort Study Among Chinese Middle-Aged and Older Population. Int J Public Health 2022; 67:1605419. [PMID: 36618433 PMCID: PMC9810631 DOI: 10.3389/ijph.2022.1605419] [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: 09/20/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Objectives: We tended to explore the association of indoor air pollution (IAP) and non-neoplastic digestive system diseases (NNDSD) among the Chinese middle-aged and older population. Methods: From 2011 to 2018, we included 7884 NNDSD-free adults from the China Health and Retirement Longitudinal Study (CHARLS). Physician-diagnosed NNDSD was obtained by self-reported information at baseline and updated across follow-up surveys. We investigated the associations between baseline exposure of solid fuel use for cooking and/or heating and NNDSD diagnosed during follow-up through Cox proportional hazard models. Furthermore, we examined the relationship between cooking fuel switching and NNDSD diagnosed during follow-up. Results: Solid fuel use for cooking and/or heating was positively associated with NNDSD after adjusting for potential confounders. The risk of NNDSD among subjects who always use solid fuel for cooking (adjusted hazard ratio [aHR]: 1.42; 95% confidence interval [CI]: 1.09, 1.84) was higher than those with always clean fuels. Moreover, we found a lower NNDSD risk among participants who switched from solid to clean cooking fuel (aHR: 0.65; 95% CI: 0.49, 0.87) than those with always solid fuels. Conclusion: Our present study shows that indoor solid fuel use is a dependent risk factor for NNDSD. Moreover, switching to clean fuel may contribute to the prevention of digestive system illnesses.
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Affiliation(s)
- Yahang Liu
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Silu Zeng
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Chen Huang
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Ce Wang
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Jingjing Zhu
- Clinical Research Unit, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jiahuan Peng
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Fengfei Ding
- Department of Pharmacology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jiong Li
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark,Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark
| | - Guoyou Qin
- Department of Biostatistics, School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Jiaohua Chen
- Department of Health Management, Seventh People’s Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Jiaohua Chen,
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Paliienko K, Korbush M, Krisanova N, Pozdnyakova N, Borysov A, Tarasenko A, Pastukhov A, Dudarenko M, Kalynovska L, Grytsaenko V, Garmanchuk L, Dovbynchuk T, Tolstanova G, Borisova T. Similar in vitro response of rat brain nerve terminals, colon preparations and COLO 205 cells to smoke particulate matter from different types of wood. Neurotoxicology 2022; 93:244-256. [DOI: 10.1016/j.neuro.2022.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 09/17/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022]
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15
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Gupta N, Yadav VK, Gacem A, Al-Dossari M, Yadav KK, Abd El-Gawaad NS, Ben Khedher N, Choudhary N, Kumar P, Cavalu S. Deleterious Effect of Air Pollution on Human Microbial Community and Bacterial Flora: A Short Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192315494. [PMID: 36497569 PMCID: PMC9738139 DOI: 10.3390/ijerph192315494] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/04/2022] [Accepted: 11/18/2022] [Indexed: 05/10/2023]
Abstract
A balanced microbiota composition is requisite for normal physiological functions of the human body. However, several environmental factors such as air pollutants may perturb the human microbiota composition. It is noticeable that currently around 99% of the world's population is breathing polluted air. Air pollution's debilitating health impacts have been studied scrupulously, including in the human gut microbiota. Nevertheless, air pollution's impact on other microbiotas of the human body is less understood so far. In the present review, the authors have summarized and discussed recent studies' outcomes related to air pollution-driven microbiotas' dysbiosis (including oral, nasal, respiratory, gut, skin, and thyroid microbiotas) and its potential multi-organ health risks.
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Affiliation(s)
- Nishant Gupta
- Department of Medical Research & Development, River Engineering, Toy City, Ecotech-III, Greater Noida 201305, India
| | - Virendra Kumar Yadav
- Department of Biosciences, School of Liberal Arts and Sciences, Mody University of Science & Technology, Lakshmangarh, Sikar 332311, India
- Correspondence: (V.K.Y.); (S.C.)
| | - Amel Gacem
- Department of Physics, Faculty of Sciences, University 20 Août 1955, Skikda 21000, Algeria
| | - M. Al-Dossari
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad 462044, India
| | - N. S. Abd El-Gawaad
- Department of Physics, Faculty of Science, King Khalid University, Abha 62529, Saudi Arabia
| | - Nidhal Ben Khedher
- Department of Mechanical Engineering, College of Engineering, University of Ha’il, Ha’il 81451, Saudi Arabia
- Laboratory of Thermal and Energy Systems Studies, National School of Engineering of Monastir, University of Monastir, Monastir 5000, Tunisia
| | - Nisha Choudhary
- Department of Environmental Sciences, School of Sciences, P P Savani University, Surat 394125, India
| | - Pankaj Kumar
- Department of Environmental Science, Parul Institute of Applied Sciences, Parul University, Vadodara 391760, India
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (V.K.Y.); (S.C.)
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16
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Okafor PN, Dahlen A, Youssef M, Olayode A, Sonu I, Neshatian L, Nguyen L, Charu V. Environmental Pollutants Are Associated With Irritable Bowel Syndrome in a Commercially Insured Cohort of California Residents. Clin Gastroenterol Hepatol 2022; 21:1617-1626.e9. [PMID: 36202347 DOI: 10.1016/j.cgh.2022.09.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/07/2022] [Accepted: 09/19/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIMS Prior studies have linked environmental pollutants with gastrointestinal (GI) diseases. Here, we quantify the relationships between 7 pollutants and the zip code-level incidence of irritable bowel syndrome (IBS), functional dyspepsia, inflammatory bowel diseases (IBDs), and eosinophilic esophagitis (EoE) in California. METHODS Claims in Optum's Clinformatics Data Mart were linked with environmental exposures in California, derived from CalEnviroScreen 3.0. We identified adult patients with new diagnoses of each GI disease, and estimated claims-derived, zip code-level disease incidence rates. Two study periods were considered: 2009-2014 (International Classification of Diseases-Ninth Revision era) and 2016-2019 (International Classification of Diseases-Tenth Revision [ICD-10] era). Multivariable negative binomial regression models were used to test associations between 7 pollutants (ozone, particulate matter <2.5 μm [PM2.5], diesel emissions, drinking water contaminants, pesticides, toxic releases from industrial facilities, traffic density) and zip code-level incidence of the GI diseases along with a negative control outcome, adjusting for numerous potential confounders. RESULTS Zip code-level IBS incidence was associated with PM2.5 (P < .001 in both eras) and airborne toxic releases from facilities (P < .001 in both eras). An increase of 1 μg/m3 in PM2.5 or 1% in toxic releases translates to an increase in the IBS incidence rate of about 0.02 cases per 100 person-years. Traffic density and drinking water contaminant exposures were also associated with increasing IBS incidence, but these associations were not significant in both eras. Similarly, exposure to PM2.5, drinking water contaminants and airborne toxic releases from facilities were associated with functional dyspepsia incidence, though not in both eras. No significant associations were noted between pollutants and IBD or EoE incidence. CONCLUSION Exposure to PM2.5 and airborne toxic releases from facilities are associated with higher IBS incidence among a cohort of commercially insured Californians. Environmental pollutant exposure was not associated with the incidence of IBDs and EoE in this cohort.
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Affiliation(s)
- Philip N Okafor
- Department of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California.
| | - Alex Dahlen
- Quantitative Sciences Unit, Department of Medicine, Stanford University School of Medicine, Stanford, California
| | - Michael Youssef
- Department of Internal Medicine, University of Toronto Medical School, Toronto, Ontario, Canada
| | - Adegboyega Olayode
- Division of Hospital Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Irene Sonu
- Department of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Leila Neshatian
- Department of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Linda Nguyen
- Department of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Vivek Charu
- Quantitative Sciences Unit, Department of Medicine, Stanford University School of Medicine, Stanford, California; Department of Pathology, Stanford University School of Medicine, Stanford, California.
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17
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Li FR, Wu KY, Fan WD, Chen GC, Tian H, Wu XB. Long-term exposure to air pollution and risk of incident inflammatory bowel disease among middle and old aged adults. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113835. [PMID: 35816845 DOI: 10.1016/j.ecoenv.2022.113835] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Epidemiological evidence regarding the associations between long-term exposure to air pollution and risk of incident inflammatory bowel disease (IBD) is scant. OBJECTIVES We examined the associations of various specific air pollutants with the risk of incident ulcerative colitis and Crohn's disease, two subtypes of IBD, among middle and old aged adults in the UK. We also explored potential susceptible subgroups. METHODS We used data from the UK Biobank study. Information on air pollution, including PM2.5, PM2.5-10, PM10 as well as NO2 and NOx were estimated using the Land Use Regression model. Multivariable Cox proportional hazards models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS After a median follow-up of 11.7 years, 1872 incident ulcerative colitis and 865 incident Crohn's disease cases were identified among 455,210 IBD-free participants. HRs (95% CIs) of ulcerative colitis associated with each 1 interquartile range (IQR) increase in PM2.5, PM2.5-10, PM10, NO2, and NOx were 1.06 (1.01, 1.12), 1.03 (0.99, 1.08), 1.09 (1.03, 1.16), 1.12 (1.07, 1.19), and 1.07 (1.02, 1.12), respectively. The associations between all the air pollutants and risk of Crohn's disease were null. Smoking status and sex appeared to respectively modify the associations between some air pollutants and risk of ulcerative colitis and Crohn's disease. CONCLUSION Long-term exposure to various air pollutants was associated with the risk of incident ulcerative colitis but not Crohn's disease, highlighting the importance of developing environmental health strategy to reduce the burden of ulcerative colitis.
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Affiliation(s)
- Fu-Rong Li
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen, China; Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Ke-Yi Wu
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Wei-Dong Fan
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Guo-Chong Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China; Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Haili Tian
- School of Kinesiology, Shanghai University of Sport, Shanghai, China.
| | - Xian-Bo Wu
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China.
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18
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Ambient Air Pollution and Pediatric Inflammatory Bowel Diseases: An Updated Scoping Review. Dig Dis Sci 2022; 67:4342-4354. [PMID: 35751831 DOI: 10.1007/s10620-022-07597-3] [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: 03/21/2022] [Accepted: 06/09/2022] [Indexed: 12/09/2022]
Abstract
To review and discuss recent findings on the associations between pediatric/early-life exposures to ambient air pollution and the risk of pediatric-onset inflammatory bowel diseases (IBD). A scoping review was conducted using the Peters Micah et al. framework. We searched, selected, extracted, and reviewed information from published peer-reviewed papers from three bibliographic databases, chosen to cover a broad range of disciplines. Limits on date (last decade), language, and subject were placed on the database search. The search identified 109 papers from 2010 to June 2021. After screening, we identified nine articles with data on air pollution as a risk factor for IBD, but only four epidemiologic studies directly investigated the association between air pollution and IBD development in children and young adults. These four papers show that air pollution components have different associations with pediatric IBD (pIBD) incidence. Consequently, sulfur dioxide (SO2), nitrogen dioxide (NO2), and the oxidant capacity of air pollution (Ox) were positively associated with pIBD incidence, whereas the association effects of particulate matter (PM) and ozone (O3) exposures were not clear. Despite good scientific rationale and some studies, the evidence on the role that air pollution has in IBD development is limited, highlighting the need for further investigation. Future studies should include the epidemiology of air pollutants and its sources, identifying and understanding mechanisms linking air pollution and pIBD, and identifying signatures of biological responses to air pollutants.
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Kuenzig ME, Benchimol EI. The Role of the Urban Exposome in the Increasing Global Rates of Pediatric Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr 2022; 75:116-119. [PMID: 35653436 DOI: 10.1097/mpg.0000000000003500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Pediatric inflammatory bowel disease (IBD) is becoming increasingly common around the world, rapidly accelerating in regions undergoing rapid economic development. IBD is more common among those living in cities, and the association between the urban environment and IBD incidence is strongest in children. The "urban exposome" is defined as the totality of environmental exposures associated with urban living: air pollution, water contamination, green and blue space, nighttime light, noise, and availability of pre-processed and packaged foods. Investigation of the role of the urban exposome and IBD is in its infancy. Existing research has reached heterogeneous conclusions, and most studies have focused specifically on adult-onset disease and environmental exposures in isolation rather than the interaction between exposures. By better understanding the impact of the urban exposome on pediatric IBD, we can work to minimize these exposures and decrease the future burden of IBD in children.
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Affiliation(s)
- M Ellen Kuenzig
- From the SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, Toronto, Ontario, Canada
| | - Eric I Benchimol
- From the SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, Toronto, Ontario, Canada
- the ICES, Toronto, Ontario Canada
- the Department of Paediatrics and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
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20
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Keulers L, Dehghani A, Knippels L, Garssen J, Papadopoulos N, Folkerts G, Braber S, van Bergenhenegouwen J. Probiotics, prebiotics, and synbiotics to prevent or combat air pollution consequences: The gut-lung axis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 302:119066. [PMID: 35240267 DOI: 10.1016/j.envpol.2022.119066] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 05/26/2023]
Abstract
Air pollution exposure is a public health emergency, which attributes globally to an estimated seven million deaths on a yearly basis We are all exposed to air pollutants, varying from ambient air pollution hanging over cities to dust inside the home. It is a mixture of airborne particulate matter and gases that can be subdivided into three categories based on particle diameter. The smallest category called PM0.1 is the most abundant. A fraction of the particles included in this category might enter the blood stream spreading to other parts of the body. As air pollutants can enter the body via the lungs and gut, growing evidence links its exposure to gastrointestinal and respiratory impairments and diseases, like asthma, rhinitis, respiratory tract infections, Crohn's disease, ulcerative colitis, and abdominal pain. It has become evident that there exists a crosstalk between the respiratory and gastrointestinal tracts, commonly referred to as the gut-lung axis. Via microbial secretions, metabolites, immune mediators and lipid profiles, these two separate organ systems can influence each other. Well-known immunomodulators and gut health stimulators are probiotics, prebiotics, together called synbiotics. They might combat air pollution-induced systemic inflammation and oxidative stress by optimizing the microbiota composition and microbial metabolites, thereby stimulating anti-inflammatory pathways and strengthening mucosal and epithelial barriers. Although clinical studies investigating the role of probiotics, prebiotics, and synbiotics in an air pollution setting are lacking, these interventions show promising health promoting effects by affecting the gastrointestinal- and respiratory tract. This review summarizes the current data on how air pollution can affect the gut-lung axis and might impact gut and lung health. It will further elaborate on the potential role of probiotics, prebiotics and synbiotics on the gut-lung axis, and gut and lung health.
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Affiliation(s)
- Loret Keulers
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands; Danone Nutricia Research, Uppsalalaan 12, 3584, CT, Utrecht, the Netherlands.
| | - Ali Dehghani
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands
| | - Leon Knippels
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands; Danone Nutricia Research, Uppsalalaan 12, 3584, CT, Utrecht, the Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands; Danone Nutricia Research, Uppsalalaan 12, 3584, CT, Utrecht, the Netherlands
| | - Nikolaos Papadopoulos
- Centre for Paediatrics and Child Health, Institute of Human Development, University of Manchester, Oxford Road M13 9PL, Manchester, United Kingdom
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands
| | - Saskia Braber
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands
| | - Jeroen van Bergenhenegouwen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584, CG, Utrecht, the Netherlands; Danone Nutricia Research, Uppsalalaan 12, 3584, CT, Utrecht, the Netherlands
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21
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Lochhead P, Khalili H, Ananthakrishnan AN, Burke KE, Richter JM, Sun Q, Grandjean P, Chan AT. Plasma concentrations of perfluoroalkyl substances and risk of inflammatory bowel diseases in women: A nested case control analysis in the Nurses' Health Study cohorts. ENVIRONMENTAL RESEARCH 2022; 207:112222. [PMID: 34662575 PMCID: PMC9960490 DOI: 10.1016/j.envres.2021.112222] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND Perfluoroalkyl substances (PFASs) are synthetic compounds used in a wide variety of industrial and consumer applications. An association between PFAS exposure and risk of ulcerative colitis (UC) has been reported in a highly exposed population. However, data are limited on risk of inflammatory bowel diseases (IBD) among individuals with background population levels of PFAS exposure. OBJECTIVES We set out to examine the association between plasma PFAS concentrations and risk of IBD among women in two population-based, prospective cohort studies in which pre-diagnostic blood specimens were available. METHODS We conducted a nested case-control study in the Nurses' Health Study and Nurses' Health Study II cohorts. We identified 73 participants with incident Crohn's disease (CD) and 80 participants with incident UC who had provided blood samples before diagnosis. Cases were matched 1:2 to IBD-free controls. Plasma concentrations of five major PFASs were measured by liquid chromatography and tandem mass spectrometry. We used conditional logistic models to estimated odds ratios for risk of IBD according to log10-transformed PFAS concentrations, adjusting for potential confounders. RESULTS In multivariable models, we observed inverse associations between plasma concentrations of three PFASs and risk of CD (all P ≤ 0.012 for a standard deviation increase in log10PFAS). The inverse association with CD was strongest for perfluorodecanoate, where, compared to the lowest tertile, the odds ratio (OR) for the highest tertile was 0.39 (95% confidence interval, 0.17-0.92). No associations were observed between PFAS concentrations and UC risk. DISCUSSION Our results do not support the hypothesis that elevated PFAS exposure is associated with higher risk of UC. Contrary to expectation, our data suggest that circulating concentrations of some PFASs may be inversely associated with CD development.
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Affiliation(s)
- Paul Lochhead
- Clinical and Translational Epidemiology Unit, Massachusetts Hospital and Harvard Medical School, Boston, MA, USA; Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Hamed Khalili
- Clinical and Translational Epidemiology Unit, Massachusetts Hospital and Harvard Medical School, Boston, MA, USA; Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Ashwin N Ananthakrishnan
- Clinical and Translational Epidemiology Unit, Massachusetts Hospital and Harvard Medical School, Boston, MA, USA; Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Kristin E Burke
- Clinical and Translational Epidemiology Unit, Massachusetts Hospital and Harvard Medical School, Boston, MA, USA; Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - James M Richter
- Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Qi Sun
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Philippe Grandjean
- Institute of Public Health, University of Southern Denmark, Odense, Denmark; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Andrew T Chan
- Clinical and Translational Epidemiology Unit, Massachusetts Hospital and Harvard Medical School, Boston, MA, USA; Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
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22
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Schwarzfischer M, Rogler G. The Intestinal Barrier-Shielding the Body from Nano- and Microparticles in Our Diet. Metabolites 2022; 12:223. [PMID: 35323666 PMCID: PMC8952728 DOI: 10.3390/metabo12030223] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 01/27/2023] Open
Abstract
Nano- and microparticles are an implicit part of the human diet. They are unknowingly ingested with our food that contains them as additives or pollutants. However, their impact on human health is not yet understood and controversially discussed. The intestinal epithelial barrier shields our body against exogenous influences, such as commensal bacteria, pathogens, and body-foreign particles and, therefore, protects our body integrity. Breakdown of the intestinal epithelial barrier and aberrant immune responses are key events in the pathogenesis of inflammatory bowel disease (IBD). Epithelial lesions might enable systemic translocation of nano- and microparticles into the system, eventually triggering an excessive immune response. Thus, IBD patients could be particularly vulnerable to adverse health effects caused by the ingestion of synthetic particles with food. The food-additive titanium dioxide (TiO2) serves as a coloring agent in food products and is omnipresent in the Western diet. TiO2 nanoparticles exacerbate intestinal inflammation by activation of innate and adaptive immune response. Because of serious safety concerns, the use of TiO2 as a food additive was recently banned from food production within the European Union. Due to environmental pollution, plastic has entered the human food chain, and plastic microparticles have been evidenced in the drinking water and comestible goods. The impact of plastic ingestion and its resulting consequences on human health is currently the subject of intense research. Focusing on TiO2 and plastic particles in the human diet and their impact on epithelial integrity, gut homeostasis, and intestinal inflammation, this review is addressing contemporary hot topics which are currently attracting a lot of public attention.
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Affiliation(s)
| | - Gerhard Rogler
- Department of Gastroenterology & Hepatology, University Hospital Zurich, 8091 Zurich, Switzerland;
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23
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Jarmakiewicz-Czaja S, Piątek D, Filip R. The impact of selected food additives on the gastrointestinal tract in the example of nonspecific inflammatory bowel diseases. Arch Med Sci 2022; 18:1286-1296. [PMID: 36160334 PMCID: PMC9479712 DOI: 10.5114/aoms/125001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 07/06/2020] [Indexed: 11/17/2022] Open
Abstract
Various types of food additives are widely used in the food industry. Due to their properties extending the usefulness for consuming food products, they give them different colours, consistency, or taste. The products are marked 'E' and the code is assigned to the subscription used. Many of the supplements affect human health negatively. Emulsifiers or stabilizers can lead to epithelial loads and the development of inflammation. Sucrose and other sweeteners may change the composition of the intestinal microflora and thus lead to intestinal blockage. Some additives classified as preservatives are available and may predispose to intestinal dysbiosis. Available substances belonging to food dyes may predispose to genotoxic and cytotoxic effects and cause inflammation in the intestines. Substances added to food can also cause disorders of intestinal homeostasis.
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Affiliation(s)
| | - Dominika Piątek
- Department of Conservative Dentistry with Endodontics, Medical University of Lublin, Lublin, Poland
| | - Rafał Filip
- Department of Gastroenterology with IBD, Unit of Clinical Hospital 2, Rzeszow, Poland
- Medical College of Rzeszow University, Rzeszow, Poland
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24
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El-Sahhar S, Varga-Weisz P. The gut microbiome in health and disease: Inflammatory bowel diseases. ADV ECOL RES 2022. [DOI: 10.1016/bs.aecr.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Zhou Y, Zhang M, Zhao X, Feng J. Ammonia exposure induced intestinal inflammation injury mediated by intestinal microbiota in broiler chickens via TLR4/TNF-α signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112832. [PMID: 34583273 DOI: 10.1016/j.ecoenv.2021.112832] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Ammonia is a known environmental pollutant that causes injury to the intestine. Growing evidence suggests that intestinal microbiota dysbiosis involves in the development of intestinal injury under environmental pollution. However, the specific mechanism remains unexplored. To do this, broiler chicken ileal exposed to ammonia was selected as the research object. Further, antibiotic depletion of intestinal microbiota and flora transplantation were used to clarify the role of intestinal microbiota in the intestinal injury. Histopathological examination indicated inhaled ammonia caused intestinal injury. Then we observed a decrease in intestinal muc-2, claudin-1, IL-6, IL-10 in ammonia inhalation, as opposed to the control group, associated with a significant increase in TLR4, MyD88, NF-κB, TNF-α, IL-1β, caspase3. Moreover, there was a significant increase of Streptococcus, Escherichia-Shigella, Faecalibacterium, [Ruminococcus]_torques_group, Ruminococcaceae_UCG-014, unclassified_f_Lachnospiraceae, Rothia, unclassified_f_Ruminococcaceae in the inhaled ammonia exposure. Correlation analysis suggested that the altered genera were positively correlated with the expression of TLR4 and TNF-α. Moreover, transferring intestinal microbiota from ammonia exposure broiler into healthy broiler caused intestinal injury and increased TLR4 and TNF-α concentrations in recipient broiler. Furthermore, antibiotic depletion of intestinal microbiota attenuated ammonia-caused intestinal injury and reduced TLR4 and TNF-α productions. In summary, TLR4/TNF-α signaling pathway was an important regulated mechanism involved in the intestinal injury mediated by intestinal microbiota dysbiosis under inhaled ammonia.
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Affiliation(s)
- Ying Zhou
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Minhong Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.
| | - Xin Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinghai Feng
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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26
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Torres J, Halfvarson J, Rodríguez-Lago I, Hedin CRH, Jess T, Dubinsky M, Croitoru K, Colombel JF. Results of the Seventh Scientific Workshop of ECCO: Precision Medicine in IBD-Prediction and Prevention of Inflammatory Bowel Disease. J Crohns Colitis 2021; 15:1443-1454. [PMID: 33730755 DOI: 10.1093/ecco-jcc/jjab048] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Inflammatory bowel disease [IBD] is a complex chronic disorder with no clear aetiology and no known cure. Despite recent advances in overall disease management and improved therapeutics, patients with IBD still experience a substantial burden. Furthermore, as the incidence continues to increase in developing areas of the world, it is expected that the burden of IBD to society will increase and exert tremendous pressure on health care systems worldwide. Therefore, new strategies to prevent the global increase of IBD are urgently required. Data are being progressively acquired on the period preceding disease diagnosis, which support the concept that IBD has a preclinical period that may reveal the triggers of disease and may be amenable to early intervention. Having a better knowledge of this preclinical period will increase the potential not only for improved understanding of disease pathogenesis and improved therapeutics, but also for disease prediction and prevention.
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Affiliation(s)
- Joana Torres
- Division of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal.,Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Jonas Halfvarson
- Department of Gastroenterology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Iago Rodríguez-Lago
- Department of Gastroenterology, Hospital de Galdakao, and Biocruces Bizkaia Health Research Institute, Bilbao, Spain
| | - Charlotte R H Hedin
- Karolinska Institutet, Department of Medicine Solna, Stockholm, Sweden.,Karolinska University Hospital, Gastroenterology unit, Department of Gastroenterology, Dermatovenereology and Rheumatology, Stockholm, Sweden
| | - Tine Jess
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen S, Denmark.,PREDICT, Institute of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Marla Dubinsky
- Division of Pediatric Gastroenterology and Nutrition, Susan and Leonard Feinstein Inflammatory Bowel Disease Clinical Center, Icahn School of Medicine Mount Sinai, New York, NY, USA
| | - Kenneth Croitoru
- Center for Inflammatory Bowel Disease, Mount Sinai Hospital, Toronto, ON, Canada.,Division of Gastroenterology and Hepatology, University of Toronto, Toronto, ON, Canada
| | - Jean-Frédéric Colombel
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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27
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Wu M, Tang M, Yu Z, Mao X, Chen Y, Wang J, Jin M, Yu C, Chen K. Association between short-term exposure to air pollution and peptic ulcer bleeding: A case-crossover study in China. ATMOSPHERIC ENVIRONMENT 2021; 256:118438. [DOI: 10.1016/j.atmosenv.2021.118438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
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28
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Duan R, Wu Y, Wang M, Wu J, Wang X, Wang Z, Hu Y, Duan L. Association between short-term exposure to fine particulate pollution and outpatient visits for ulcerative colitis in Beijing, China: A time-series study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 214:112116. [PMID: 33706140 DOI: 10.1016/j.ecoenv.2021.112116] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 02/09/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Environmental factors play an important role in the development of ulcerative colitis (UC). However, only few studies have examined the effects of air pollution on UC occurrence. We conducted a time-series analysis to explore the association between short-term exposure to fine particulate matter (PM2.5) and outpatient visits for UC in Beijing, China. In total, 84,000 outpatient visits for UC were retrieved from the Beijing Medical Claim Data for Employees between January 1, 2010 and June 30, 2012. Measurements of daily PM2.5 concentrations were obtained from the United States Embassy air-monitoring station. A generalized additive model with quasi-Poisson link was applied to examine the association between PM2.5 concentrations and outpatient visits for UC stratified by sex, age, and season. We found that short-term exposure to PM2.5 was significantly associated with increased daily outpatient visits for UC at lag 0 day. A 10 μg/m3 increase in PM2.5 concentration at lag 0 day corresponded to a 0.32% increase in outpatient visits for UC (95% confidence interval (CI), 0.05-0.58%; P = 0.019). There was a clear concentration-response association between daily outpatient visits for UC and PM2.5 concentrations. The PM2.5 effects were significant across all sex and season subgroups, without evidence of effect modification by sex (P = 0.942) or season (P = 0.399). The association was positive in patients younger than 65 years old but negative in those 65 years old or older, although the difference was not significant (P = 0.883). In conclusion, our study demonstrated that short-term exposure to ambient PM2.5 was significantly associated with an increased risk of daily outpatient visits for UC, especially in younger people. Additional studies are warranted to confirm our findings.
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Affiliation(s)
- Ruqiao Duan
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Yao Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Mengying Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Junhui Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Xiaowen Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Zijing Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Yonghua Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China.
| | - Liping Duan
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
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29
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Crawford MS, Nordgren TM, McCole DF. Every breath you take: Impacts of environmental dust exposure on intestinal barrier function-from the gut-lung axis to COVID-19. Am J Physiol Gastrointest Liver Physiol 2021; 320:G586-G600. [PMID: 33501887 PMCID: PMC8054554 DOI: 10.1152/ajpgi.00423.2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 01/31/2023]
Abstract
As countries continue to industrialize, major cities experience diminished air quality, whereas rural populations also experience poor air quality from sources such as agricultural operations. These exposures to environmental pollution from both rural and populated/industrialized sources have adverse effects on human health. Although respiratory diseases (e.g., asthma and chronic obstructive pulmonary disease) are the most commonly reported following long-term exposure to particulate matter and hazardous chemicals, gastrointestinal complications have also been associated with the increased risk of lung disease from inhalation of polluted air. The interconnectedness of these organ systems has offered valuable insights into the roles of the immune system and the micro/mycobiota as mediators of communication between the lung and the gut during disease states. A topical example of this relationship is provided by reports of multiple gastrointestinal symptoms in patients with coronavirus disease 2019 (COVID-19), whereas the rapid transmission and increased risk of COVID-19 has been linked to poor air quality and high levels of particulate matter. In this review, we focus on the mechanistic effects of environmental pollution on disease progression with special emphasis on the gut-lung axis.
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Affiliation(s)
- Meli'sa S Crawford
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California
| | - Tara M Nordgren
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California
| | - Declan F McCole
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California
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30
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Vignal C, Guilloteau E, Gower-Rousseau C, Body-Malapel M. Review article: Epidemiological and animal evidence for the role of air pollution in intestinal diseases. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143718. [PMID: 33223187 DOI: 10.1016/j.scitotenv.2020.143718] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 05/25/2023]
Abstract
BACKGROUND Ambient air pollution is recognized as one of the leading causes of global burden of disease. Involvement of air pollution in respiratory and cardiovascular diseases was first recognized, and then cumulative data has indicated that the intestinal tract could be also damaged. AIM To review and discuss the current epidemiological and animal data on the effects of air pollution on intestinal homeostasis. METHODS An extensive literature search was conducted using Google Scholar and Pubmed to gather relevant human and animal studies that have reported the effects of any air pollutant on the intestine. RESULTS Exposure to several gaseous and particulate matter components of air pollution have been associated either positively or negatively with the onset of various intestinal diseases including appendicitis, gastroenteric disorders, irritable bowel syndrome, inflammatory bowel diseases, and peptic ulcers. Several atmospheric pollutants have been associated with modifications of gut microbiota in humans. Animal studies have showed that inhalation of atmospheric particulate matter can lead to modifications of gut microbiota, impairments of oxidative and inflammatory intestinal balances, and disruption of gut epithelial permeability. CONCLUSIONS Overall, the literature appears to indicate that the gut is an underestimated target of adverse health effects induced by air pollution. It is therefore important to develop additional studies that aim to better understand the link between air pollutants and gastro-intestinal diseases.
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Affiliation(s)
- Cécile Vignal
- Univ. Lille, Inserm, CHU Lille, U1286- INFINITE - Institute for translational research in inflammation, F-59000 Lille, France
| | - Eva Guilloteau
- Univ. Lille, Inserm, CHU Lille, U1286- INFINITE - Institute for translational research in inflammation, F-59000 Lille, France
| | - Corinne Gower-Rousseau
- Univ. Lille, Inserm, CHU Lille, U1286- INFINITE - Institute for translational research in inflammation, F-59000 Lille, France; Epidemiology Unit, Epimad Registry, Lille University Hospital, France
| | - Mathilde Body-Malapel
- Univ. Lille, Inserm, CHU Lille, U1286- INFINITE - Institute for translational research in inflammation, F-59000 Lille, France.
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Yu Z, Mao X, Tang M, Chen Y, Wu M, Jin M, Wang J, Xu L, Ye G, Ding J, Ye B, Chen D, Chen Y, Chen X, Sheng X, Li H, Chen Q, Teng X, Ding Q, Yang H, Shen Z, Chen K, Yu C. Association between past exposure to fine particulate matter (PM 2.5) and peptic ulcer: A cross-sectional study in eastern China. CHEMOSPHERE 2021; 265:128706. [PMID: 33139052 DOI: 10.1016/j.chemosphere.2020.128706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 10/18/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
Ambient fine particulate matter (particle diameter < 2.5 μm, or PM2.5) is a major public health concern in China. Exposure to PM2.5 has been associated with a wide range of adverse health outcomes. The current study aimed to estimate the association between exposure to PM2.5 and the risk of peptic ulcer diseases (PUDs). We conducted a hospital-based cross-sectional study of seven major cities in Zhejiang Province, China (combined population > 57 million people), which included a total of 647,092 subjects who underwent gastroscopy examination (86,852 subjects were diagnosed with PUDs) recorded in 13 large hospitals from 2014 to 2018. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the relationship between PM2.5 and PUDs, including duodenal ulcers (DUs) and gastric ulcers (GUs). The overall estimated OR (95% CI) associated with every 10-μg/m3 increase in the 1-month average PM2.5 before the detection of PUDs was 1.050 (95% CI: 1.038, 1.063). The association between PM2.5 concentration and the prevalence of PUDs tended to be attenuated but remained significant when considering different exposure periods (OR = 1.030, 95% CI = 1.018-1.043 for the 3-month moving average; OR = 1.020, 95% CI = 1.005-1.037 for the 6-month moving average). Stronger associations were observed for DUs than GUs. The observed positive association of PM2.5 exposure with PUDs remained significant in the two-pollutant models after adjusting for other air pollutants. Our findings could provide scientific evidence for a more general adverse role of air pollution on PUDs.
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Affiliation(s)
- Zhebin Yu
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, China; Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, Zhejiang, China
| | - Xinli Mao
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, China
| | - Mengling Tang
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, China; Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, Zhejiang, China
| | - Yi Chen
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, China
| | - Mengyin Wu
- Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, Zhejiang, China
| | - Mingjuan Jin
- Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, Zhejiang, China
| | - Jianbing Wang
- Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, Zhejiang, China
| | - Lei Xu
- Department of Gastroenterology, Ningbo First Hospital, Zhejiang, China
| | - Guoliang Ye
- Department of Gastroenterology, The Affiliated Hospital of Ningbo University School of Medicine, Zhejiang, China
| | - Jin Ding
- Department of Gastroenterology, Jinhua Municipal Central Hospital, Zhejiang, China
| | - Bin Ye
- Department of Gastroenterology, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Dongya Chen
- Department of Gastroenterology, Zhejiang Integrated Traditional Chinese and Western Medicine Hospital, Zhejiang, China
| | - Yu Chen
- Department of Gastroenterology, The First Hospital of Jiaxing, Zhejiang, China
| | - Xia Chen
- Department of Gastroenterology, Wenling First People's Hospital, Zhejiang, China
| | - Xiancang Sheng
- Department of Gastroenterology, Taizhou First People's Hospital, Zhejiang, China
| | - Hongzhang Li
- Department of Gastroenterology, Sanmen People's Hospital, Zhejiang, China
| | - Qiang Chen
- Department of Gastroenterology, Sanmen People's Hospital, Zhejiang, China
| | - Xiaosheng Teng
- Department of Gastroenterology, Taizhou Central Hospital, Zhejiang, China
| | - Qiulong Ding
- Department of Gastroenterology, People's Hospital of Tiantai County, Zhejiang, China
| | - Haideng Yang
- Department of Gastroenterology, Taizhou Enze Hospital, Zhejiang, China
| | - Zhe Shen
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, China.
| | - Kun Chen
- Department of Epidemiology and Biostatistics, Zhejiang University School of Public Health, Hangzhou, Zhejiang, China.
| | - Chaohui Yu
- Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, China.
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Caioni G, Viscido A, d’Angelo M, Panella G, Castelli V, Merola C, Frieri G, Latella G, Cimini A, Benedetti E. Inflammatory Bowel Disease: New Insights into the Interplay between Environmental Factors and PPARγ. Int J Mol Sci 2021; 22:985. [PMID: 33498177 PMCID: PMC7863964 DOI: 10.3390/ijms22030985] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 12/19/2022] Open
Abstract
The pathophysiological processes of inflammatory bowel diseases (IBDs), i.e., Crohn's disease (CD) and ulcerative colitis (UC), are still not completely understood. The exact etiology remains unknown, but it is well established that the pathogenesis of the inflammatory lesions is due to a dysregulation of the gut immune system resulting in over-production of pro-inflammatory cytokines. Increasing evidence underlines the involvement of both environmental and genetic factors. Regarding the environment, the microbiota seems to play a crucial role. Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors that exert pleiotropic effects on glucose homeostasis, lipid metabolism, inflammatory/immune processes, cell proliferation, and fibrosis. Furthermore, PPARs modulate interactions with several environmental factors, including microbiota. A significantly impaired PPARγ expression was observed in UC patients' colonic epithelial cells, suggesting that the disruption of PPARγ signaling may represent a critical step of the IBD pathogenesis. This paper will focus on the role of PPARγ in the interaction between environmental factors and IBD, and it will analyze the most suitable in vitro and in vivo models available to better study these relationships.
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Affiliation(s)
- Giulia Caioni
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
| | - Angelo Viscido
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
| | - Michele d’Angelo
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
| | - Gloria Panella
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Balzarini 1, 64100 Teramo, Italy;
| | - Vanessa Castelli
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
| | - Carmine Merola
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Balzarini 1, 64100 Teramo, Italy;
| | - Giuseppe Frieri
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
| | - Giovanni Latella
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
| | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
- Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, PA 19122, USA
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.V.); (M.d.); (G.P.); (V.C.); (G.F.); (G.L.); (A.C.)
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Quercetin Intervention Alleviates Offspring's Oxidative Stress, Inflammation, and Tight Junction Damage in the Colon Induced by Maternal Fine Particulate Matter (PM 2.5) Exposure through the Reduction of Bacteroides. Nutrients 2020; 12:nu12103095. [PMID: 33050645 PMCID: PMC7601264 DOI: 10.3390/nu12103095] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/24/2020] [Accepted: 09/30/2020] [Indexed: 12/17/2022] Open
Abstract
The influences of maternal fine particulate matter (PM2.5) exposure on intestinal oxidative stress, inflammation, tight junctions, and gut microbiota of offspring are not well understood. Moreover, research on the dietary intervention method has not been well studied. In our study, dams received PM2.5 and quercetin intervention during gestation and lactation, and then inflammation biomarkers, oxidative stress indicators, tight junction proteins, and gut microbiota in the colon of offspring were analyzed. Compared with the control group, lower catalase (CAT) and superoxide dismutase (SOD) activities, higher interleukin-17A (IL-17A) and interleukin-22 (IL-22), decreased ZO-1 and occludin expressions, and higher Bacteroides abundance were observed in the offspring mice of the PM2.5 group. However, higher CAT and SOD activities, lower IL-17A and IL-22 levels, increased ZO-1 and occludin expressions, and lower Bacteroides abundance were found in the quercetin groups. In addition, there was a negative correlation between Bacteroides abundance and CAT concentration. Additionally, Bacteroides abundance was positively related to IL-17A and IL-22 levels. These findings suggest that maternal PM2.5 exposure may have some certain effects on intestinal oxidative stress, inflammation, and tight junctions. Quercetin administration may protect the offspring against these adverse effects. Changes of Bacteroides abundance play an important role in the process.
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Tenailleau QM, Lanier C, Gower-Rousseau C, Cuny D, Deram A, Occelli F. Crohn's disease and environmental contamination: Current challenges and perspectives in exposure evaluation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114599. [PMID: 32325248 DOI: 10.1016/j.envpol.2020.114599] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/20/2019] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Although the incidence of Crohn's disease has increased worldwide over the past 30 years, the disorder's exact causes and physiological mechanisms have yet to be determined. Given that genetic determinants alone do not explain the development of Crohn's disease, there is growing interest in "environmental" determinants. In medical science, the term "environment" refers to both the ecological and social surroundings; however, most published studies have focused on the latter. In environmental and exposure sciences, the term "environment" mostly relates to contamination of the biotope. There are many unanswered questions on how environmental hazards might contribute to the pathogenesis of Crohn's disease. Which pollutants should be considered? Which mechanisms are involved? And how should environmental contamination and exposure be evaluated? The objective was to perform a systematic review of the literature on Crohn's disease and environmental contamination. We searched the PubMed, Google Scholar, Scopus, ISI Web of Science and Prospero databases. We considered all field studies previous to April 2019 conducted on human health indicators, and evaluating exposure to all type of physical, biological and chemical contamination of the environment. The lack of clear answers to date can be ascribed to the small total number of field studies (n = 16 of 39 publications, most of which were conducted by pioneering medical scientists), methodological differences, and the small number of contaminants evaluated. This make it impossible to conduct a coherent and efficient meta-analysis. Based on individual analysis of available studies, we formulated five recommendations on improving future research: (i) follow up the currently identified leads - especially metals and endocrine disruptors; (ii) explore soil contamination; (iii) gain a better knowledge of exposure mechanisms by developing transdisciplinary studies; (iv) identify the most plausible contaminants by developing approaches based on the source-to-target distance; and (v) develop registries and cohort-based analyses.
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Affiliation(s)
- Quentin M Tenailleau
- Univ. Lille, CHU Lille, Institut Pasteur de Lille, EA 4483 - IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, F-59000, Lille, France.
| | - Caroline Lanier
- Univ. Lille, CHU Lille, Institut Pasteur de Lille, EA 4483 - IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, F-59000, Lille, France
| | - Corinne Gower-Rousseau
- Public Health, Epidemiology and Economic Health Unit, EPIMAD Registry, Maison Régionale de la Recherche Clinique, University of Lille and Lille University Hospital, Lille, France; LIRIC UMR 995, Team, INSERM, University of Lille, Lille, France
| | - Damien Cuny
- Univ. Lille, CHU Lille, Institut Pasteur de Lille, EA 4483 - IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, F-59000, Lille, France
| | - Annabelle Deram
- Univ. Lille, CHU Lille, Institut Pasteur de Lille, EA 4483 - IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, F-59000, Lille, France
| | - Florent Occelli
- Univ. Lille, CHU Lille, Institut Pasteur de Lille, EA 4483 - IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, F-59000, Lille, France
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Dujardin CE, Mars RAT, Manemann SM, Kashyap PC, Clements NS, Hassett LC, Roger VL. Impact of air quality on the gastrointestinal microbiome: A review. ENVIRONMENTAL RESEARCH 2020; 186:109485. [PMID: 32289569 DOI: 10.1016/j.envres.2020.109485] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/20/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Poor air quality is increasingly associated with several gastrointestinal diseases suggesting a possible association between air quality and the human gut microbiome. However, details on this remain largely unexplored as current available research is scarce. The aim of this comprehensive rigorous review was to summarize the existing reports on the impact of indoor or outdoor airborne pollutants on the animal and human gut microbiome and to outline the challenges and suggestions to expand this field of research. METHODS AND RESULTS A comprehensive search of several databases (inception to August 9, 2019, humans and animals, English language only) was designed and conducted by an experienced librarian to identify studies describing the impact of air pollution on the human gut microbiome. The retrieved articles were assessed independently by two reviewers. This process yielded six original research papers on the animal GI gastrointestinal microbiome and four on the human gut microbiome. β-diversity analyses from selected animal studies demonstrated a significantly different composition of the gut microbiota between control and exposed groups but changes in α-diversity were less uniform. No consistent findings in α or β-diversity were reported among the human studies. Changes in microbiota at the phylum level disclosed substantial discrepancies across animal and human studies. CONCLUSIONS A different composition of the gut microbiome, particularly in animal models, is associated with exposure to air pollution. Air pollution is associated with various taxa changes, which however do not follow a clear pattern. Future research using standardized methods are critical to replicate these initial findings and advance this emerging field.
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Affiliation(s)
- Charlotte E Dujardin
- Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Ruben A T Mars
- Division of Gastroenterology and Hepatology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA; Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Sheila M Manemann
- Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Purna C Kashyap
- Division of Gastroenterology and Hepatology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA; Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Nicholas S Clements
- Well Living Lab, Inc., 221 First Avenue SW, Rochester, MN, 55902, USA; Department of General Internal Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Leslie C Hassett
- Library Public Services, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Véronique L Roger
- Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA; Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
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Wang C, Zhu G, Zhang L, Chen K. Particulate matter pollution and hospital outpatient visits for endocrine, digestive, urological, and dermatological diseases in Nanjing, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114205. [PMID: 32113107 DOI: 10.1016/j.envpol.2020.114205] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/16/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
Clinical or pathological evidence demonstrated that air pollution could undermine other organ systems of human body besides respiratory and circulation systems. Investigations that directly relate hospital outpatient visits for endocrine (ENDO), digestive (DIGE), urological (UROL), and dermatological (DERM) diseases categories with ambient particulate matter (PM) are still lacking, particularly in heavily polluted cities. Here, we conducted a time-series analysis using 812,624, 1,111,342, 539,803, and 741,662 hospital visits for ENDO, DIGE, UROL, and DERM, respectively, in Nanjing, China from 2013 to 2019. A generalized additive model was applied to estimate the exposure-response associations. Results showed that a 10 μg/m3 increase in PM2.5 concentration on lag 0 day was significantly associated with 0.59% (95% CI: 0.30%, 0.88%), 0.43% (0.15%, 0.70%), 0.36% (0.06%, 0.66%), and 0.65% (0.42%, 0.87%) increase for ENDO, DIGE, UROL, and DERM hospital visits, respectively. The estimated effects of PM10 were slightly smaller but still statistically significant. The magnitude and significance of the associations between PM and four health outcomes were sensitive to additional adjustment for co-pollutants. Exposure-response relationships were linear for PM concentrations lower than 100 μg/m3 but the curves became nonlinear across the full range of exposures due to a flatten slope at higher concentrations. We also explored the effect modifications by season (cold or warm), age (5-18, 18-64, 65-74, or 75+ years), and sex (male or female). Results showed that the DERM-related population aged 65 years or older was more vulnerable to PM exposure, compared with the 5 to 17-year age group; the DERM-related population aged 75 years or older and 65 years or older was more vulnerable to PM2.5 and PM10 exposure, respectively, compared with the 18 to 64-year age group. Our study provided suggestive evidence that ambient PM pollution was associated with ENDO, DIGE, UROL, and DERM outpatient hospital visits in Nanjing, China.
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Affiliation(s)
- Ce Wang
- School of Energy and Environment, Southeast University, Nanjing, 210096, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, 210096, PR China.
| | - Guangcan Zhu
- School of Energy and Environment, Southeast University, Nanjing, 210096, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, 210096, PR China.
| | - Lei Zhang
- Outpatient Department, Zhongda Hospital of Southeast University, Nanjing, 210096, PR China.
| | - Kai Chen
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, 06520-8034, USA.
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Elten M, Benchimol EI, Fell DB, Kuenzig ME, Smith G, Chen H, Kaplan GG, Lavigne E. Ambient air pollution and the risk of pediatric-onset inflammatory bowel disease: A population-based cohort study. ENVIRONMENT INTERNATIONAL 2020; 138:105676. [PMID: 32217428 DOI: 10.1016/j.envint.2020.105676] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/18/2020] [Accepted: 03/18/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND High-income nations have the highest rates of inflammatory bowel disease (IBD). The incidence of pediatric-onset IBD is increasing faster than IBD diagnosed in older individuals. Previous epidemiological studies have shown that air pollution might be a risk factor for development of earlier-onset IBD, but results remain mixed. OBJECTIVES The objective of this study was to evaluate the associations between maternal and early-life exposures to nitrogen dioxide (NO2), fine particulate matter (PM2.5), ozone (O3,) and oxidant capacity (Ox) and risk of pediatric-onset IBD diagnosis. METHODS We conducted a retrospective cohort study using linked population-based health administrative data. Singleton livebirths in Ontario, Canada between April 1st, 1991 and March 31st, 2014 were included. We investigated the association between weekly exposures during pregnancy and annual exposures from birth until the age of 18 years, and IBD diagnosed <18 years of age using Cox proportional hazards models. We reported hazard ratios (HR) and 95% confidence intervals (CI) for an associated increase in the interquartile range (IQR) of each pollutant. Models were mutually adjusted for exposures in both prenatal and postnatal periods, as well as for sex, rurality of residence at birth, maternal IBD, and neighborhood income. RESULTS 2,218,789 newborns were included in this study, of whom 2491 developed IBD during follow-up. Increased associations with pediatric-onset IBD were noted for childhood exposure to Ox (HR 1.08, 95% CI 1.01-1.16). IBD development was also associated with Ox during the second trimester (HR 1.21, 95% CI 1.03-1.42), but not the overall pregnancy period (HR 1.12, 95% CI 0.79-1.59). There were no associations of IBD with exposure to NO2, PM2.5, or O3. DISCUSSION Exposure to Ox during childhood was associated with IBD < 18 years. This suggests that air pollution may impact the developing child physiology in such a way that leads to early onset of IBD.
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Affiliation(s)
- Michael Elten
- School of Epidemiology and Public Health, University of Ottawa, Ontario, Canada; Air Health Sciences Division, Health Canada, Ontario, Canada
| | - Eric I Benchimol
- School of Epidemiology and Public Health, University of Ottawa, Ontario, Canada; Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ontario, Canada; ICES uOttawa, Ontario, Canada; CHEO Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ontario, Canada; Department of Pediatrics, University of Ottawa, Ontario, Canada
| | - Deshayne B Fell
- School of Epidemiology and Public Health, University of Ottawa, Ontario, Canada; Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ontario, Canada; ICES uOttawa, Ontario, Canada
| | - M Ellen Kuenzig
- School of Epidemiology and Public Health, University of Ottawa, Ontario, Canada; Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ontario, Canada; ICES uOttawa, Ontario, Canada; CHEO Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ontario, Canada
| | | | - Hong Chen
- ICES uOttawa, Ontario, Canada; Public Health Ontario, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Ontario, Canada; Population Health Studies Division, Health Canada, Ontario, Canada
| | - Gilaad G Kaplan
- Departments of Medicine and Community Health Sciences, University of Calgary, Alberta, Canada
| | - Eric Lavigne
- School of Epidemiology and Public Health, University of Ottawa, Ontario, Canada; Air Health Sciences Division, Health Canada, Ontario, Canada; ICES uOttawa, Ontario, Canada.
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Verhaegh BPM, Bijnens EM, van den Heuvel TRA, Goudkade D, Zeegers MP, Nawrot TS, Masclee AAM, Jonkers DMAE, Pierik MJ. Ambient air quality as risk factor for microscopic colitis - A geographic information system (GIS) study. ENVIRONMENTAL RESEARCH 2019; 178:108710. [PMID: 31520828 DOI: 10.1016/j.envres.2019.108710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/15/2019] [Accepted: 08/27/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Microscopic colitis (MC) is considered a multifactorial disease, strongly associated with smoking. However, little is known about the role of environmental factors such as ambient air pollution in MC pathophysiology. There is an overlap in components of cigarette smoke and ambient air pollution. Therefore, the aim of this study was to explore an independent association between ambient air quality and MC. METHODS A case-control study was performed. MC cases in South Limburg, the Netherlands, diagnosed between 2000 and 2012, were retrieved from the national pathology registry and matched to non-MC controls from the same area based on age (±2 years) and gender. A stable residential address for ≥3 years was required. Residential land use, proximity to major road, and concentrations of air pollution compounds, were determined using a Geographic Information System (GIS). Univariate and multivariable regression analyses were corrected for age, gender and smoking status. RESULTS In total, 345 MC cases (78.6% female) and 583 matched controls (77.2% female) were included. In the univariate analyses, the percentage of urban green within a 500 m buffer and residential proximity to the nearest highway were associated with MC (both p < 0.10). On the multivariable level only a higher age at diagnosis (OR 1.02, 95%-CI 1.01-1.04) and current smoking at index date (OR 4.30; 95%-CI 3.01-6.14) were significantly associated with MC. CONCLUSION Based on the current findings, ambient air quality does not seem to be an important risk factor for MC, in contrast to the well-known risk factors age and current smoking.
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Affiliation(s)
- Bas P M Verhaegh
- Division of Gastroenterology - Hepatology, Dept. Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands.
| | - Esmee M Bijnens
- Center for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Tim R A van den Heuvel
- Division of Gastroenterology - Hepatology, Dept. Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Danny Goudkade
- Department of Pathology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Maurice P Zeegers
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands; Care and Public Health Research Institute (School CAPHRI), Maastricht University, the Netherlands
| | - Tim S Nawrot
- Center for Environmental Sciences, Hasselt University, Diepenbeek, Belgium; Department of Public Health and Primary Care, Leuven University, Leuven, Belgium
| | - Ad A M Masclee
- Division of Gastroenterology - Hepatology, Dept. Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Daisy M A E Jonkers
- Division of Gastroenterology - Hepatology, Dept. Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Marieke J Pierik
- Division of Gastroenterology - Hepatology, Dept. Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
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Abstract
OBJECTIVE Exposure to airborne particulate matter (PM) is estimated to cause millions of premature deaths annually. This work conveys known routes of exposure to PM and resultant health effects. METHODS A review of available literature. RESULTS Estimates for daily PM exposure are provided. Known mechanisms by which insoluble particles are transported and removed from the body are discussed. Biological effects of PM, including immune response, cytotoxicity, and mutagenicity, are reported. Epidemiological studies that outline the systemic health effects of PM are presented. CONCLUSION While the integrated, per capita, exposure of PM for a large fraction of the first-world may be less than 1 mg per day, links between several syndromes, including attention deficit hyperactivity disorder (ADHD), autism, loss of cognitive function, anxiety, asthma, chronic obstructive pulmonary disease (COPD), hypertension, stroke, and PM exposure have been suggested. This article reviews and summarizes such links reported in the literature.
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40
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Li D, Zhang R, Cui L, Chu C, Zhang H, Sun H, Luo J, Zhou L, Chen L, Cui J, Chen S, Mai B, Chen S, Yu J, Cai Z, Zhang J, Jiang Y, Aschner M, Chen R, Zheng Y, Chen W. Multiple organ injury in male C57BL/6J mice exposed to ambient particulate matter in a real-ambient PM exposure system in Shijiazhuang, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 248:874-887. [PMID: 30856503 DOI: 10.1016/j.envpol.2019.02.097] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 02/26/2019] [Accepted: 02/26/2019] [Indexed: 06/09/2023]
Abstract
The development of a rodent ambient particulate matter (PM) inhalation system is critical for drawing causal inferences between PM exposure and the onset of human diseases. In this study, we constructed a real-ambient PM exposure system to investigate multi-organ injury and the reversibility of the impairments in C57BL/6 J male mice exposed to PM with a duration of up to three months in Shijiazhuang, a city with the highest PM2.5 concentration in China. This unique exposure system provided an optimal scenario for round-the-clock PM exposure absent a change in the physiochemical properties of PM and minimized the disturbance to the mice habitat. The mean concentration of PM2.5 in the exposure chambers was 89.95, 79.98, and 87.87 μg/m3 at three different time points, respectively: weeks 1-3, week 1-6, and week 1-12. The injury in multiple organs, including lung, brain, heart, testis, and intestine, was profound and was evident by the significant pathological and functional alterations. Pulmonary pathological examination revealed severe interstitial inflammatory and alveolar hemorrhage throughout the exposure, which was in line with the reduced lung function and the increased cytokine excretion in bronchoalveolar lavage fluid and blood plasma. Notably, the PM-mediated inflammatory response in different systems was correlated with the severity of the injury and the attenuation of pulmonary lesions in the recovery group. Thus, the PM2.5-induced inflammatory response, the chemical components-induced cytotoxicity, genetic damage, and oxidative stress might be implicated in the impairment of multiple murine organs. These findings revealed the severity, sensitivity, and reversibility of multi-organ injury in response to a real-ambient PM exposure.
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Affiliation(s)
- Daochuan Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Lianhua Cui
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Chen Chu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Haiyan Zhang
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hao Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Jing Luo
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Lixiao Zhou
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Liping Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jian Cui
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Shen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bixian Mai
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Shejun Chen
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Jianzhen Yu
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Jianqing Zhang
- Persistent Organic Pollution Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Yousheng Jiang
- Persistent Organic Pollution Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Wen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China.
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41
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Vedamurthy A, Ananthakrishnan AN. Influence of Environmental Factors in the Development and Outcomes of Inflammatory Bowel Disease. Gastroenterol Hepatol (N Y) 2019; 15:72-82. [PMID: 31011301 PMCID: PMC6469265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inflammatory bowel disease (IBD), which mainly comprises Crohn's disease (CD) and ulcerative colitis (UC), is a term for chronic inflammatory diseases of the gut arising due to a dysregulated immune response to a dysbiotic gut microbiome on a background of genetic predisposition. However, genetics explains a small fraction of risk, and the external environment plays a large and important role in disease pathogenesis and natural history. Cigarette smoking, one of the earliest- and most-studied risk factors, increases the risk of CD onset and is associated with severe disease. In contrast, although smoking cessation increases the risk of UC onset and relapse, current smoking appears to be protective. Appendectomy is inversely associated with the risk of UC. Various dietary factors may influence risk of IBD, including an inverse association with dietary fiber. Exclusion diets have anecdotal reports of efficacy but lack evidence from rigorous clinical trials. Psychosocial factors such as depression, stress, and sleep disturbance play a role in onset as well as in determining natural history. There is an important need for rigorous studies robustly informing the association and mechanism(s) of influence of the external environment on IBD risk and for clinical trials examining the efficacy of alteration of the environment in ameliorating the course of IBD.
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Affiliation(s)
- Amar Vedamurthy
- Dr Vedamurthy is a hospitalist in the Division of General Medicine at Massachusetts General Hospital in Boston, Massachusetts and an instructor in medicine at Harvard Medical School in Boston, Massachusetts
- Dr Ananthakrishnan is an associate professor in the Division of Gastroenterology at Massachusetts General Hospital and at Harvard Medical School
| | - Ashwin N Ananthakrishnan
- Dr Vedamurthy is a hospitalist in the Division of General Medicine at Massachusetts General Hospital in Boston, Massachusetts and an instructor in medicine at Harvard Medical School in Boston, Massachusetts
- Dr Ananthakrishnan is an associate professor in the Division of Gastroenterology at Massachusetts General Hospital and at Harvard Medical School
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Schraufnagel DE, Balmes JR, Cowl CT, De Matteis S, Jung SH, Mortimer K, Perez-Padilla R, Rice MB, Riojas-Rodriguez H, Sood A, Thurston GD, To T, Vanker A, Wuebbles DJ. Air Pollution and Noncommunicable Diseases: A Review by the Forum of International Respiratory Societies' Environmental Committee, Part 2: Air Pollution and Organ Systems. Chest 2019; 155:417-426. [PMID: 30419237 PMCID: PMC6904854 DOI: 10.1016/j.chest.2018.10.041] [Citation(s) in RCA: 368] [Impact Index Per Article: 73.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/28/2018] [Accepted: 10/31/2018] [Indexed: 12/30/2022] Open
Abstract
Although air pollution is well known to be harmful to the lung and airways, it can also damage most other organ systems of the body. It is estimated that about 500,000 lung cancer deaths and 1.6 million COPD deaths can be attributed to air pollution, but air pollution may also account for 19% of all cardiovascular deaths and 21% of all stroke deaths. Air pollution has been linked to other malignancies, such as bladder cancer and childhood leukemia. Lung development in childhood is stymied with exposure to air pollutants, and poor lung development in children predicts lung impairment in adults. Air pollution is associated with reduced cognitive function and increased risk of dementia. Particulate matter in the air (particulate matter with an aerodynamic diameter < 2.5 μm) is associated with delayed psychomotor development and lower child intelligence. Studies link air pollution with diabetes mellitus prevalence, morbidity, and mortality. Pollution affects the immune system and is associated with allergic rhinitis, allergic sensitization, and autoimmunity. It is also associated with osteoporosis and bone fractures, conjunctivitis, dry eye disease, blepharitis, inflammatory bowel disease, increased intravascular coagulation, and decreased glomerular filtration rate. Atopic and urticarial skin disease, acne, and skin aging are linked to air pollution. Air pollution is controllable and, therefore, many of these adverse health effects can be prevented.
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Affiliation(s)
- Dean E Schraufnagel
- Pulmonary, Critical Care, Sleep and Allergy, University of Illinois at Chicago, Chicago, IL.
| | - John R Balmes
- Department of Medicine, University of California, San Francisco, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA
| | - Clayton T Cowl
- Divisions of Preventive, Occupational, and Aerospace Medicine and Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN
| | - Sara De Matteis
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Soon-Hee Jung
- Department of Pathology, Wonju Colleage of Medicine, Yonsei University, Seoul, South Korea
| | - Kevin Mortimer
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | | | - Mary B Rice
- Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | | | - Akshay Sood
- Pulmonary, Critical Care, and Sleep Medicine, University of New Mexico School of Medicine, Albuquerque, NM
| | - George D Thurston
- Departments of Environmental Medicine and Population Health, New York University School of Medicine, New York, NY
| | - Teresa To
- The Hospital for Sick Children, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Anessa Vanker
- Department of Paediatrics and Child Health & MRC Unit on Child and Adolescent Health, University of Cape Town, Cape Town, South Africa
| | - Donald J Wuebbles
- School of Earth, Society, and Environment, Department of Atmospheric Sciences, University of Illinois, Urbana, IL
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Ananthakrishnan AN, Bernstein CN, Iliopoulos D, Macpherson A, Neurath MF, Ali RAR, Vavricka SR, Fiocchi C. Environmental triggers in IBD: a review of progress and evidence. Nat Rev Gastroenterol Hepatol 2018; 15:39-49. [PMID: 29018271 DOI: 10.1038/nrgastro.2017.136] [Citation(s) in RCA: 534] [Impact Index Per Article: 89.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A number of environmental factors have been associated with the development of IBD. Alteration of the gut microbiota, or dysbiosis, is closely linked to initiation or progression of IBD, but whether dysbiosis is a primary or secondary event is unclear. Nevertheless, early-life events such as birth, breastfeeding and exposure to antibiotics, as well as later childhood events, are considered potential risk factors for IBD. Air pollution, a consequence of the progressive contamination of the environment by countless compounds, is another factor associated with IBD, as particulate matter or other components can alter the host's mucosal defences and trigger immune responses. Hypoxia associated with high altitude is also a factor under investigation as a potential new trigger of IBD flares. A key issue is how to translate environmental factors into mechanisms of IBD, and systems biology is increasingly recognized as a strategic tool to unravel the molecular alterations leading to IBD. Environmental factors add a substantial level of complexity to the understanding of IBD pathogenesis but also promote the fundamental notion that complex diseases such as IBD require complex therapies that go well beyond the current single-agent treatment approach. This Review describes the current conceptualization, evidence, progress and direction surrounding the association of environmental factors with IBD.
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Affiliation(s)
- Ashwin N Ananthakrishnan
- Massachusetts General Hospital, Harvard Medical School, 165 Cambridge Street, Boston, Massachusetts 02114, USA
| | - Charles N Bernstein
- University of Manitoba IBD Clinical and Research Centre, 804-F-175 McDermot Avenue, Winnipeg Manitoba R3E 3P4, Canada
| | - Dimitrios Iliopoulos
- Center for Systems Biomedicine, Vatche & Tamar Manoukian Division of Digestive Diseases, Department of Medicine, UCLA, 650 Charles E. Young Drive South CHS 44-133, Los Angeles, California 90095-7278, USA
| | - Andrew Macpherson
- Gastroenterology/UVCM, Inselspital, Freiburgstrasse 8, 3010 Bern, Switzerland
| | - Markus F Neurath
- I. Department of Medicine, University of Erlangen-Nürnberg, University Hospital, Ulmenweg 18, 91054 Erlangen, Germany
| | - Raja A Raja Ali
- The National University of Malaysia, UKM Medical Centre, Jalan Yaacob Latif, 56000 Kuala Lumpur, Malaysia
| | - Stephan R Vavricka
- Triemli Hospital, Department of Gastroenterology & Hepatology, Birmensdorferstrasse 497, 8063 Zurich, Switzerland
| | - Claudio Fiocchi
- Department of Pathobiology, Lerner Research Institute, and Department of Gastroenterology & Hepatology, Digestive Diseases and Surgery Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, Ohio 44195, USA
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