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Iban-Arias R, Wang SH, Soares Dias Portela A, Yang EJ, Griggs E, Masieri S, Hu W, Chen LC, Pasinetti GM. Exposure to the World Center Particulate Matter Alters the Gut-Brain Axis in Early Onset Alzheimer's Disease Mice. J Alzheimers Dis 2024:JAD240635. [PMID: 39093074 DOI: 10.3233/jad-240635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Background The September 11, 2001, catastrophe unleashed widespread destruction beyond the World Center (WTC), with fires and toxic gases leaving lasting impacts. First responders at Ground Zero faced prolonged exposure to hazardous particulate matter (PM), resulting in chronic health challenges. Among the multitude of health concerns, the potential association between the WTCPM and Alzheimer's disease (AD) has emerged as an area of intense inquiry, probing the intricate interplay between environmental factors and neurodegenerative diseases. Objective We posit that a genetic predisposition to AD in mice results in dysregulation of the gut-brain axis following chronic exposure to WTCPM. This, in turn, may heighten the risk of AD-like symptoms in these individuals. Methods 3xTg-AD and WT mice were intranasally administered with WTCPM collected at Ground Zero within 72 hours after the attacks. Working memory and learning and recognition memory were monitored for 4 months. Moreover, brain transcriptomic analysis and gut barrier permeability along with microbiome composition were examined. Results Our findings underscore the deleterious effects of WTCPM on cognitive function, as well as notable alterations in brain genes associated with synaptic plasticity, pro-survival, and inflammatory signaling pathways. Complementary, chronic exposure to the WTCPM led to increased gut permeability in AD mice and altered bacteria composition and expression of functional pathways in the gut. Conclusions Our results hint at a complex interplay between gut and brain axis, suggesting potential mechanisms through which WTCPM exposure may exacerbate cognitive decline. Identifying these pathways offers opportunities for tailored interventions to alleviate neurological effects among first responders.
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Affiliation(s)
- Ruth Iban-Arias
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Shu-Han Wang
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Eun-Jeong Yang
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Elizabeth Griggs
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sibilla Masieri
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Wen Hu
- Department of Neurochemistry, Inge Grundke-Iqbal Research Floor, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, New York, NY, USA
| | - Lung-Chi Chen
- Department of Environmental Medicine, NYU Langone School of Medicine, New York, NY, USA
| | - Giulio Maria Pasinetti
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Geriatrics Research, Education and Clinical Center, JJ Peters VA Medical Center, Bronx, NY, USA
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De Ruyter T, Martens DS, Bijnens EM, De Henauw S, Nawrot TS, Michels N. Exploring the impact of lifestyle and environmental exposures on appetite hormone levels in children and adolescents: An observational study. ENVIRONMENTAL RESEARCH 2024; 252:118846. [PMID: 38582428 DOI: 10.1016/j.envres.2024.118846] [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: 11/20/2023] [Revised: 03/29/2024] [Accepted: 03/30/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Appetite hormones are considered a promising target in fighting obesity as impaired appetite hormone levels have already been associated with obesity. However, further insights in the drivers of appetite hormone levels are needed. OBJECTIVES In this study, we investigated the associations of fasting appetite hormone levels with lifestyle and environmental exposures in children and adolescents. METHODS A total of 534 fasting blood samples were collected from children and adolescents (4-16y,50% boys) and appetite hormone levels (glucagon-like peptide-1 (GLP-1), peptide YY (PYY), pancreatic polypeptide (PP), leptin and ghrelin) were measured. Exposures included dietary quality (fiber-rich food intake, sugar propensity, fat propensity), psychosocial stress (happiness, negative emotions, negative life events and emotional problems), sleep duration, physical activity and environmental quality (long term black carbon (BC), particulate matter <2.5 μM (PM2.5), nitrogen dioxide (NO2) exposure, and green space in a 100 m and 2000 m radius around the residence). A multi-exposure score was calculated to combine all the exposures at study in one measure. Associations of individual exposures and multi-exposure score with appetite hormone levels were evaluated using linear mixed regression models adjusting for sex, age, socioeconomic status, waist-to-height ratio and multiple testing. RESULTS GLP-1 was associated with air pollution exposure (NO2 β* = -0.13, BC β* = -0.15, PM2.5 β* = -0.16, all p < 0.001). Leptin was associated with green space in a 100 m radius around the residence (β* = -0.11; p = 0.002). Ghrelin was associated with negative emotions (active ghrelin β* = -0.16; p = 0.04, total ghrelin β* = -0.23; p = 0.0051) and happiness (active ghrelin β* = 0.25; p < 0.001, total ghrelin β* = 0.26; p < 0.001). Furthermore, total ghrelin levels were associated with the multi-exposure score, reflecting unhealthy exposures and lifestyle (β* = -0.22; p = 0.036). DISCUSSION Our findings provide new insights into the associations of exposures with appetite hormone levels, which are of high interest for preventive obesity research. Further research is crucial to reveal the underlying mechanisms of the observed associations.
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Affiliation(s)
- Thaïs De Ruyter
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium; Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium.
| | - Dries S Martens
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Esmée M Bijnens
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium; Department of Environmental Sciences, Faculty of Science, Open University, Heerlen, the Netherlands
| | - Stefaan De Henauw
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium; Department of Public Health & Primary Care, University of Leuven, Leuven, Belgium
| | - Nathalie Michels
- Department of Developmental, Personality and Social Psychology, Ghent University, Belgium
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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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4
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Bezemer GFG, Diks MAP, Mortaz E, van Ark I, van Bergenhenegouwen J, Kraneveld AD, Folkerts G, Garssen J. A synbiotic mixture of Bifidobacterium breve M16-V, oligosaccharides and pectin, enhances Short Chain Fatty Acid production and improves lung health in a preclinical model for pulmonary neutrophilia. Front Nutr 2024; 11:1371064. [PMID: 39006103 PMCID: PMC11239554 DOI: 10.3389/fnut.2024.1371064] [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: 01/15/2024] [Accepted: 05/15/2024] [Indexed: 07/16/2024] Open
Abstract
Introduction Pulmonary neutrophilia is a hallmark of numerous airway diseases including Chronic Obstructive Pulmonary Disease (COPD), Neutrophilic asthma, Acute Lung Injury (ALI), Acute Respiratory Distress Syndrome (ARDS) and COVID-19. The aim of the current study was to investigate the effect of dietary interventions on lung health in context of pulmonary neutrophilia. Methods Male BALB/cByJ mice received 7 intra-nasal doses of either a vehicle or lipopolysaccharides (LPS). To study the effect of nutritional interventions they received 16 intra-gastric doses of either a vehicle (PBS) or the following supplements (1) probiotic Bifidobacterium breve (B. breve) M16-V; (2) a prebiotic fiber mixture of short-chain galacto-oligosaccharides, long-chain fructo-oligosaccharides, and low-viscosity pectin in a 9:1:2 ratio (scGOS/lcFOS/lvPectin); and (3) A synbiotic combination B. breve M16-V and scGOS/lcFOS/lvPectin. Parameters for lung health included lung function, lung morphology and lung inflammation. Parameters for systemic immunomodulation included levels of fecal short chain fatty acids and regulatory T cells. Results The synbiotic supplement protected against the LPS induced decline in lung function (35% improved lung resistance at baseline p = 0.0002 and 25% at peak challenge, p = 0.0002), provided a significant relief from pulmonary neutrophilia (40.7% less neutrophils, p < 0.01) and improved the pulmonary neutrophil-to-lymphocyte ratio (NLR) by 55.3% (p = 0.0033). Supplements did not impact lung morphology in this specific experiment. LPS applied to the upper airways induced less fecal SCFAs production compared to mice that received PBS. The production of acetic acid between day -5 and day 16 was increased in all unchallenged mice (PBS-PBS p = 0.0003; PBS-Pro p < 0.0001; PBS-Pre, p = 0.0045; PBS-Syn, p = 0.0005) which upon LPS challenge was only observed in mice that received the synbiotic mixture of B. breve M16-V and GOS:FOS:lvPectin (p = 0.0003). A moderate correlation was found for butyric acid and lung function parameters and a weak correlation was found between acetic acid, butyric acid and propionic acid concentrations and NLR. Conclusion This study suggests bidirectional gut lung cross-talk in a mouse model for pulmonary neutrophilia. Neutrophilic lung inflammation coexisted with attenuated levels of fecal SCFA. The beneficial effects of the synbiotic mixture of B. breve M16-V and GOS:FOS:lvPectin on lung health associated with enhanced levels of SCFAs.
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Affiliation(s)
- Gillina F G Bezemer
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
- Impact Station, Hilversum, Netherlands
| | - Mara A P Diks
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Esmaeil Mortaz
- Department of Microbiology & Immunology, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Respiratory Immunology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ingrid van Ark
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Jeroen van Bergenhenegouwen
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
- Danone, Nutricia Research BV, Immunology, Utrecht, Netherlands
| | - Aletta D Kraneveld
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Gert Folkerts
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Johan Garssen
- Division of Pharmacology, Department of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
- Danone, Nutricia Research BV, Immunology, Utrecht, Netherlands
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5
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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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6
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Rio P, Gasbarrini A, Gambassi G, Cianci R. Pollutants, microbiota and immune system: frenemies within the gut. Front Public Health 2024; 12:1285186. [PMID: 38799688 PMCID: PMC11116734 DOI: 10.3389/fpubh.2024.1285186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 04/24/2024] [Indexed: 05/29/2024] Open
Abstract
Pollution is a critical concern of modern society for its heterogeneous effects on human health, despite a widespread lack of awareness. Environmental pollutants promote several pathologies through different molecular mechanisms. Pollutants can affect the immune system and related pathways, perturbing its regulation and triggering pro-inflammatory responses. The exposure to several pollutants also leads to alterations in gut microbiota with a decreasing abundance of beneficial microbes, such as short-chain fatty acid-producing bacteria, and an overgrowth of pro-inflammatory species. The subsequent intestinal barrier dysfunction, together with oxidative stress and increased inflammatory responses, plays a role in the pathogenesis of gastrointestinal inflammatory diseases. Moreover, pollutants encourage the inflammation-dysplasia-carcinoma sequence through various mechanisms, such as oxidative stress, dysregulation of cellular signalling pathways, cell cycle impairment and genomic instability. In this narrative review, we will describe the interplay between pollutants, gut microbiota, and the immune system, focusing on their relationship with inflammatory bowel diseases and colorectal cancer. Understanding the biological mechanisms underlying the health-to-disease transition may allow the design of public health policies aimed at reducing the burden of disease related to pollutants.
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Affiliation(s)
| | | | | | - Rossella Cianci
- Department of Translational Medicine and Surgery, Catholic University of Sacred Heart, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
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7
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Zhang K, Paul K, Jacobs JP, Cockburn MG, Bronstein JM, Del Rosario I, Ritz B. Ambient long-term exposure to organophosphorus pesticides and the human gut microbiome: an observational study. Environ Health 2024; 23:41. [PMID: 38627687 PMCID: PMC11020204 DOI: 10.1186/s12940-024-01078-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Organophosphorus pesticides (OP) have been associated with various human health conditions. Animal experiments and in-vitro models suggested that OP may also affect the gut microbiota. We examined associations between ambient chronic exposure to OP and gut microbial changes in humans. METHODS We recruited 190 participants from a community-based epidemiologic study of Parkinson's disease living in a region known for heavy agricultural pesticide use in California. Of these, 61% of participants had Parkinson's disease and their mean age was 72 years. Microbiome and predicted metagenome data were generated by 16S rRNA gene sequencing of fecal samples. Ambient long-term OP exposures were assessed using pesticide application records combined with residential addresses in a geographic information system. We examined gut microbiome differences due to OP exposures, specifically differences in microbial diversity based on the Shannon index and Bray-Curtis dissimilarities, and differential taxa abundance and predicted Metacyc pathway expression relying on regression models and adjusting for potential confounders. RESULTS OP exposure was not associated with alpha or beta diversity of the gut microbiome. However, the predicted metagenome was sparser and less evenly expressed among those highly exposed to OP (p = 0.04). Additionally, we found that the abundance of two bacterial families, 22 genera, and the predicted expression of 34 Metacyc pathways were associated with long-term OP exposure. These pathways included perturbed processes related to cellular respiration, increased biosynthesis and degradation of compounds related to bacterial wall structure, increased biosynthesis of RNA/DNA precursors, and decreased synthesis of Vitamin B1 and B6. CONCLUSION In support of previous animal studies and in-vitro findings, our results suggest that ambient chronic OP pesticide exposure alters gut microbiome composition and its predicted metabolism in humans.
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Affiliation(s)
- Keren Zhang
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Kimberly Paul
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Jonathan P Jacobs
- The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Division of Gastroenterology, Hepatology and Parenteral Nutrition, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Myles G Cockburn
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jeff M Bronstein
- Department of Neurology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Irish Del Rosario
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Beate Ritz
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA.
- Department of Environmental Health Sciences, UCLA Fielding School of Public Health, Los Angeles, CA, USA.
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8
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Li J, He C, Ying J, Hua B, Yang Y, Chen W, Liu W, Ye D, Sun X, Mao Y, Chen K. Air pollutants, genetic susceptibility, and the risk of incident gastrointestinal diseases: A large prospective cohort study. ENVIRONMENTAL RESEARCH 2024; 247:118182. [PMID: 38218525 DOI: 10.1016/j.envres.2024.118182] [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: 10/26/2023] [Revised: 12/10/2023] [Accepted: 01/10/2024] [Indexed: 01/15/2024]
Abstract
A comprehensive overview of the associations between air pollution and the risk of gastrointestinal (GI) diseases has been lacking. We aimed to examine the relationships of long-term exposure to ambient particulate matter (PM) with aerodynamic diameter ≤2.5 μm (PM2.5), 2.5-10 μm (PMcoarse), ≤10 μm (PM10), nitrogen dioxide (NO2), and nitrogen oxides (NOx), with the risk of incident GI diseases, and to explore the interplay between air pollution and genetic susceptibility. A total of 465,703 participants free of GI diseases in the UK Biobank were included at baseline. Land use regression models were employed to calculate the residential air pollutants concentrations. Cox proportional hazard models were used to evaluate the associations of air pollutants with the risk of GI diseases. The dose-response relationships of air pollutants with the risk of GI diseases were evaluated by restricted cubic spline curves. We found that long-term exposure to ambient air pollutants was positively associated with the risk of peptic ulcer (PM2.5 : Q4 vs. Q1: hazard ratio (HR) 1.272, 95% confidence interval (CI) 1.179-1.372, NO2: 1.220, 1.131-1.316, and NOx: 1.277, 1.184-1.376) and chronic gastritis (PM2.5: 1.454, 1.309-1.616, PM10 : 1.232, 1.112-1.366, NO2: 1.456, 1.311-1.617, and NOx: 1.419, 1.280-1.574) after Bonferroni correction. Participants with high genetic risk and high air pollution exposure had the highest risk of peptic ulcer, compared to those with low genetic risk and low air pollution exposure (PM2.5: HR 1.558, 95%CI 1.384-1.754, NO2: 1.762, 1.395-2.227, and NOx: 1.575, 1.403-1.769). However, no significant additive or multiplicative interaction between air pollution and genetic risk was found. In conclusion, long-term exposure to ambient air pollutants was associated with increased risk of peptic ulcer and chronic gastritis.
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Affiliation(s)
- Jiayu Li
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chunlei He
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiacheng Ying
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Baojie Hua
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yudan Yang
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weiwei Chen
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Wei Liu
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ding Ye
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaohui Sun
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Yingying Mao
- Department of Epidemiology, School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Kun Chen
- Department of Public Health, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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9
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Zhou Y, Xu B, Wang L, Sun Q, Zhang C, Li S. Effects of inhaled fine particulate matter on the lung injury as well as gut microbiota in broilers. Poult Sci 2024; 103:103426. [PMID: 38335666 PMCID: PMC10869302 DOI: 10.1016/j.psj.2024.103426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/27/2023] [Accepted: 01/02/2024] [Indexed: 02/12/2024] Open
Abstract
Fine particulate matter (PM2.5) has been widely regarded as an important environmental risk factor that has widely influenced health of both animals and humans. Lung injury is the main cause of PM2.5 affecting respiratory tract health. Gut microbiota participates in the development of lung injury in many pathological processes. However, there is still unknown the specific effects of PM2.5 on the gut-lung axis in broilers. Thus, we conducted a broiler model based on 3-wk-old male Arbor Acres broiler to explore the underlying mechanism. Our results showed that PM2.5 exposure triggered TLR4 signaling pathway and induced the increase of IL-6, IFN-γ, TNF-α expression as well as the decrease of IL-10 expression in the lung. Inhaled PM2.5 exposure significantly altered the gut microbiota diversity and community. Specifically, PM2.5 exposure decreased α diversity and altered β diversity of gut microbiota, and reduced the abundance of DTU089, Oscillospirales, Staphylococcus, and increased the Escherichia-Shigella abundance, leading to the increase of gut-derived lipopolysaccharides (LPS). Moreover, PM2.5 significantly disrupted the intestinal epithelial barrier by reducing the expression of muc2 and claudin-1 to increase intestinal permeability, which possibly facilitated the LPS translocation into the blood. Spearman analysis revealed that gut microbiota dysbiosis was positively related to TLR4, TNF-α, and IFN-γ expression in the lung. In summary, our results showed that PM2.5 exposure induced lung injury by causing inflammation and triggering TLR4 signaling pathway, and also induced gut microbiota dysbiosis resulting in the overproduction of gut-derived LPS. And gut microbiota dysbiosis may be associated with lung injury. The above results provide basis data to comprehend the potential role of gut microbiota dysbiosis in the lung injury as well as providing a new regulatory target for alleviating lung injury associated with environmental pollutants.
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Affiliation(s)
- Ying Zhou
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Bin Xu
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Linyi Wang
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Quanyou Sun
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Chaoshuai Zhang
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Shaoyu Li
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China.
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10
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Amnuaylojaroen T, Parasin N. Pathogenesis of PM 2.5-Related Disorders in Different Age Groups: Children, Adults, and the Elderly. EPIGENOMES 2024; 8:13. [PMID: 38651366 PMCID: PMC11036283 DOI: 10.3390/epigenomes8020013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/07/2024] [Accepted: 03/08/2024] [Indexed: 04/25/2024] Open
Abstract
The effects of PM2.5 on human health fluctuate greatly among various age groups, influenced by a range of physiological and immunological reactions. This paper compares the pathogenesis of the disease caused by PM2.5 in people of different ages, focusing on how children, adults, and the elderly are each susceptible to it because of differences in their bodies. Regarding children, exposure to PM2.5 is linked to many negative consequences. These factors consist of inflammation, oxidative stress, and respiratory problems, which might worsen pre-existing conditions and potentially cause neurotoxicity and developmental issues. Epigenetic changes can affect the immune system and make people more likely to get respiratory diseases. On the other hand, exposures during pregnancy can change how the cardiovascular and central nervous systems develop. In adults, the inhalation of PM2.5 is associated with a wide range of health problems. These include respiratory difficulties, reduced pulmonary function, and an increased susceptibility to illnesses such as asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. In addition, exposure to PM2.5 induces systemic inflammation, cardiovascular diseases, insulin resistance, and neurotoxic consequences. Evident disturbances in the immune system and cognitive function demonstrate the broad impact of PM2.5. The elderly population is prone to developing respiratory and cardiovascular difficulties, which worsen their pre-existing health issues and raise the risk of cognitive decline and neurological illnesses. Having additional medical conditions, such as peptic ulcer disease, significantly increases the likelihood of being admitted to hospital.
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Affiliation(s)
- Teerachai Amnuaylojaroen
- School of Energy and Environment, University of Phayao, Phayao 56000, Thailand
- Atmospheric Pollution and Climate Research Unit, School of Energy and Environment, University of Phayao, Phayao 56000, Thailand
| | - Nichapa Parasin
- School of Allied Health Science, University of Phayao, Phayao 56000, Thailand;
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11
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Bhardwaj G, Riadi Y, Afzal M, Bansal P, Kaur H, Deorari M, Tonk RK, Almalki WH, Kazmi I, Alzarea SI, Kukreti N, Thangavelu L, Saleem S. The hidden threat: Environmental toxins and their effects on gut microbiota. Pathol Res Pract 2024; 255:155173. [PMID: 38364649 DOI: 10.1016/j.prp.2024.155173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/18/2024]
Abstract
The human gut microbiota (GM), which consists of a complex and diverse ecosystem of bacteria, plays a vital role in overall wellness. However, the delicate balance of this intricate system is being compromised by the widespread presence of environmental toxins. The intricate connection between contaminants in the environment and human well-being has garnered significant attention in recent times. Although many environmental pollutants and their toxicity have been identified and studied in laboratory settings and animal models, there is insufficient data concerning their relevance to human physiology. Consequently, research on the toxicity of environmental toxins in GM has gained prominence in recent years. Various factors, such as air pollution, chemicals, heavy metals, and pesticides, have a detrimental impact on the composition and functioning of the GM. This comprehensive review aims to comprehend the toxic effects of numerous environmental pollutants, including antibiotics, endocrine-disrupting chemicals, heavy metals, and pesticides, on GM by examining recent research findings. The current analysis concludes that different types of environmental toxins can lead to GM dysbiosis and have various potential adverse effects on the well-being of animals. We investigate the alterations to the GM composition induced by contaminants and their impact on overall well-being, providing a fresh perspective on research related to pollutant exposure.
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Affiliation(s)
- Gautam Bhardwaj
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar sector-3, M-B Road, New Delhi 110017, India
| | - Yassine Riadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Pooja Bansal
- Department of Biotechnology and Genetics, Jain (Deemed-to-be) University, Bengaluru, Karnataka 560069, India; Department of Allied Healthcare and Sciences, Vivekananda Global University, Jaipur, Rajasthan 303012, India
| | - Harpreet Kaur
- School of Basic & Applied Sciences, Shobhit University, Gangoh, Uttar Pradesh 247341, India; Department of Health & Allied Sciences, Arka Jain University, Jamshedpur, Jharkhand 831001, India
| | - Mahamedha Deorari
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Rajiv Kumar Tonk
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Pushp Vihar sector-3, M-B Road, New Delhi 110017, India.
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, 72341 Sakaka, Aljouf, Saudi Arabia
| | - Neelima Kukreti
- School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India
| | - Lakshmi Thangavelu
- Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Shakir Saleem
- Department of Public Health. College of Health Sciences, Saudi Electronic University, Riyadh, Saudi Arabia.
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12
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Burris HH, Yang N, Riis V, Valeri L, South EC, Ravel J, Elovitz MA. The role of neighborhood deprivation in the cervicovaginal microbiota. Am J Obstet Gynecol MFM 2024; 6:101291. [PMID: 38246324 PMCID: PMC10948309 DOI: 10.1016/j.ajogmf.2024.101291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
BACKGROUND Lactobacillus-deficient cervicovaginal microbiota is associated with spontaneous preterm birth and is more common among Black individuals. Persistent racial segregation in the United States has led to differential neighborhood exposures by race that can affect pregnancy outcomes. The extent to which neighborhood exposures may explain racial differences in the cervicovaginal microbiota is unknown. OBJECTIVE This study aimed to determine whether neighborhood deprivation, defined as material community deprivation, is associated with a Lactobacillus-deficient cervicovaginal microbiota in a prospective cohort of pregnant individuals. Our hypothesis was that racial differences in neighborhood deprivation may explain the higher prevalence of Lactobacillus-deficient cervicovaginal microbiota in Black birthing people. STUDY DESIGN This study analyzed data from Motherhood and Microbiome, a prospective pregnancy cohort enrolled from prenatal clinics in a single hospital system 2013-2016 in which a Lactobacillus-deficient cervicovaginal microbiota was previously shown to be associated with spontaneous preterm birth. This study geocoded addresses to obtain census tract neighborhood deprivation data from the Brokamp Nationwide Community Deprivation Index that uses weighted proportions of poverty, income, public assistance, lack of health insurance, and vacant housing. Generalized linear mixed models quantified associations of deprivation with the cervicovaginal microbiota accounting for geographic clustering by census tract and potential confounders. Because of different distributions of neighborhood deprivation and the cervicovaginal microbiota, race-stratified models were used. Mediation analyses quantified the extent to which deprivation may contribute to racial differences in the cervicovaginal microbiota. RESULTS Higher neighborhood deprivation was associated with a Lactobacillus-deficient cervicovaginal microbiota. Per standard deviation increment of deprivation, participants had 28% higher adjusted odds (adjusted odds ratio, 1.28; 95% confidence interval, 1.04-1.58) of a Lactobacillus-deficient microbiota. Black participants had higher odds of a Lactobacillus-deficient microbiota than White participants (adjusted odds ratio, 4.00; 95% confidence interval, 2.05-8.26), and mediation analysis revealed that deprivation accounted for 22% (P=.046) of that disparity. CONCLUSION Neighborhood deprivation was associated with Lactobacillus-deficient cervicovaginal microbiota and may partially explain Black-White disparities in the cervicovaginal microbiota. Mechanistic studies to explore how environmental exposures modify the cervicovaginal microbiota are warranted to identify novel opportunities for future interventional strategies to prevent preterm birth. As the findings demonstrate a potential biological effect from neighborhood conditions, policies that drive urban planning should be explored to improve pregnancy outcomes.
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Affiliation(s)
- Heather H Burris
- Division of Neonatology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA (Dr Burris); Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA (Dr Burris); Leonard Davis Institute for Health Economics, University of Pennsylvania, Philadelphia, PA (Dr Burris).
| | - Nancy Yang
- University of California San Francisco Medical School, San Francisco, CA (Ms. Yang)
| | - Valerie Riis
- Women's Biomedical Research Institute, Icahn School of Medicine, New York, NY (Ms. Riis and Dr. Elovitz)
| | - Linda Valeri
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, NY (Dr. Valeri)
| | - Eugenia C South
- Penn Urban Health Lab, Department of Emergency Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA (Dr. South)
| | - Jacques Ravel
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD (Dr. Ravel)
| | - Michal A Elovitz
- Women's Biomedical Research Institute, Icahn School of Medicine, New York, NY (Ms. Riis and Dr. Elovitz); Department of Obstetrics, Gynecology, and Reproductive Sciences, Icahn School of Medicine, New York, NY (Dr. Elovitz)
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13
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Crawford MS, Ulu A, Ramirez BM, Santos AN, Chatterjee P, Canale V, Manz S, Lei H, Nordgren TM, McCole DF. Respiratory exposure to agricultural dust extract promotes increased intestinal Tnfα expression, gut barrier dysfunction, and endotoxemia in mice. Am J Physiol Gastrointest Liver Physiol 2024; 326:G3-G15. [PMID: 37874654 PMCID: PMC11208027 DOI: 10.1152/ajpgi.00297.2022] [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: 01/03/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023]
Abstract
Concentrated animal feeding operations (CAFOs) are responsible for the production of global greenhouse gases and harmful environmental pollutants including hydrogen sulfide, ammonia, and particulate matter. Swine farmers are frequently exposed to organic dust that is proinflammatory in the lung and are thus at greater risk of developing pneumonia, asthma, and other respiratory conditions. In addition to respiratory disease, air pollutants are directly associated with altered gastrointestinal (GI) physiology and the development of GI diseases, thereby highlighting the gut-lung axis in disease progression. Instillation of hog dust extract (HDE) for 3 wk has been reported to promote the development of chronic airway inflammation in mice, however, the impact of HDE exposure on intestinal homeostasis is poorly understood. We report that 3-wk intranasal exposure of HDE is associated with increased intestinal macromolecule permeability and elevated serum endotoxin concentrations in C57BL/6J mice. In vivo studies also indicated mislocalization of the epithelial cell adhesion protein, E-cadherin, in the colon as well as an increase in the proinflammatory cytokine, Tnfα, in the proximal colon. Moreover, mRNA expression of the Paneth cell-associated marker, Lyz1, was increased the proximal colon, whereas the expression of the goblet cell marker, Muc2, was unchanged in the epithelial cells of the ileum, cecum, and distal colon. These results demonstrate that airway exposure to CAFOs dusts promote airway inflammation and modify the gastrointestinal tract to increase intestinal permeability, induce systemic endotoxemia, and promote intestinal inflammation. Therefore, this study identifies complex physiological consequences of chronic exposure to organic dusts derived from CAFOs on the gut-lung axis.NEW & NOTEWORTHY Agricultural workers have a higher prevalence of occupational respiratory symptoms and are at greater risk of developing respiratory diseases. However, gastrointestinal complications have also been reported, yet the intestinal pathophysiology is understudied. This work is novel because it emphasizes the role of an inhaled environmental pollutant on the development of intestinal pathophysiological outcomes. This work will provide foundation for other studies evaluating how agricultural dusts disrupts host physiology and promotes debilitating gastrointestinal and systemic disorders.
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Affiliation(s)
- Meli'sa S Crawford
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
| | - Arzu Ulu
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
| | - Briana M Ramirez
- Department of Biochemistry and Molecular Biology, University of California, Riverside, California, United States
| | - Alina N Santos
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
| | - Pritha Chatterjee
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
| | - Vinicius Canale
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
| | - Salomon Manz
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
| | - Hillmin Lei
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
| | - Tara M Nordgren
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado, United States
| | - Declan F McCole
- School of Medicine, Division of Biomedical Sciences, University of California, Riverside, California, United States
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14
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Gu HJ, Ahn JS, Ahn GJ, Shin SH, Ryu BY. Restoration of PM2.5-induced spermatogonia GC-1 cellular damage by parthenolide via suppression of autophagy and inflammation: An in vitro study. Toxicology 2023; 499:153651. [PMID: 37858773 DOI: 10.1016/j.tox.2023.153651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/21/2023]
Abstract
Particulate matter (PM) generated by environmental and air pollution is known to have detrimental effects on human health. Among these, PM2.5 particles (diameter < 2.5 µm) can breach the alveolar-capillary barrier and disseminate to other organs, posing significant health risks. Numerous studies have shown that PMs can harm various organs, including the reproductive system. Therefore, this study aimed to investigate the harmful effects of PM2.5 on mouse GC-1 spermatogonia cells (GC-1 spg cells) and to verify the ameliorative effects of parthenolide (PTL) treatment on damaged GC-1 spg cells. We observed a significant dose-dependent reduction in cell proliferation after PM2.5 concentration of 2.5 μg/cm2. Additionally, treatment with 20 μg/cm2 PM2.5 concentration significantly increased the expression of autophagy-related proteins ATG7, the ratio of LC3-II/LC3-I, and decreased phosphorylation of PI3K and AKT. Furthermore, PM2.5 exposure augmented inflammation mediator gene expressions, the phosphorylation of the inflammation-related transcription factor NF-κB p65 at Ser536, and ubiquitination. Treatment of PM2.5-exposed GC-1 spg cells with PTL significantly reduced NF-κB p65 phosphorylation and the expression of autophagy-related proteins ATG7 and LC3-II, leading to a statistically significant recovery in cell proliferation. Together, our findings elucidated the detrimental effects of PM2.5 exposure on male germ cells, and the restorative properties of PTL against air pollutants.
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Affiliation(s)
- Hyo Jin Gu
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, Republic of Korea
| | - Jin Seop Ahn
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, Columbia University, New York, NY 10032, USA
| | - Gi Jeong Ahn
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, Republic of Korea
| | - Seung Hee Shin
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, Republic of Korea
| | - Buom-Yong Ryu
- Department of Animal Science and Technology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, Republic of Korea.
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15
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Qin J, Wang J. Research progress on the effects of gut microbiome on lung damage induced by particulate matter exposure. ENVIRONMENTAL RESEARCH 2023; 233:116162. [PMID: 37348637 DOI: 10.1016/j.envres.2023.116162] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/28/2023] [Accepted: 05/14/2023] [Indexed: 06/24/2023]
Abstract
Air pollution is one of the top five causes of death in the world and has become a research hotspot. In the past, the health effects of particulate matter (PM), the main component of air pollutants, were mainly focused on the respiratory and cardiovascular systems. However, in recent years, the intestinal damage caused by PM and its relationship with gut microbiome (GM) homeostasis, thereby affecting the composition and function of GM and bringing disease burden to the host lung through different mechanisms, have attracted more and more attention. Therefore, this paper reviews the latest research progress in the effect of PM on GM-induced lung damage and its possible interaction pathways and explores the potential immune inflammatory mechanism with the gut-lung axis as the hub in order to understand the current research situation and existing problems, and to provide new ideas for further research on the relationship between PM pollution, GM, and lung damage.
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Affiliation(s)
- Jiali Qin
- School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Junling Wang
- School of Public Health, Lanzhou University, Lanzhou, 730000, China.
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16
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Khan R, Kuenzig ME, Benchimol EI. Epidemiology of Pediatric Inflammatory Bowel Disease. Gastroenterol Clin North Am 2023; 52:483-496. [PMID: 37543395 DOI: 10.1016/j.gtc.2023.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2023]
Abstract
Inflammatory bowel disease (IBD), including subtypes Crohn disease and ulcerative colitis is a chronic inflammatory disorder most often diagnosed in young adulthood. The incidence and prevalence of pediatric-onset IBD is increasing globally. IBD is likely caused by an interplay of multiple environmental factors resulting in a dysregulated mucosal response to the commensal intestinal microbiota in genetically predisposed individuals. This article provides an overview of pediatric IBD epidemiology and environmental risk factors associated with its development, such as the Hygiene Hypothesis, air pollution, greenspace and blue space, neonatal factors, antibiotics, and diet.
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Affiliation(s)
- Rabia Khan
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children (SickKids), 555 University Avenue, Toronto, ON M5G 1X8, Canada
| | - M Ellen Kuenzig
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children (SickKids), 555 University Avenue, Toronto, ON M5G 1X8, Canada; Child Health Evaluative Sciences, SickKids Research Institute
| | - Eric I Benchimol
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children (SickKids), 555 University Avenue, Toronto, ON M5G 1X8, Canada; Child Health Evaluative Sciences, SickKids Research Institute; ICES, Toronto, Canada; Department of Paediatrics and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada.
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17
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Kim TY, Kim JM, Lee HL, Go MJ, Joo SG, Kim JH, Lee HS, Lee DY, Kim HJ, Heo HJ. Codium fragile Suppresses PM 2.5-Induced Cognitive Dysfunction by Regulating Gut-Brain Axis via TLR-4/MyD88 Pathway. Int J Mol Sci 2023; 24:12898. [PMID: 37629080 PMCID: PMC10454605 DOI: 10.3390/ijms241612898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
This study was conducted to evaluate the cognitive dysfunction improvement effect of aqueous extract of Codium fragile (AECF) by regulating the imbalance of the gut-brain axis in chronic particulate matter (PM)2.5-exposed mice. The physiological compounds of AECF were identified as hexadecanamide, oleamide, octadecanamide, stearidonic acid, and linolenic acid by the ultra-performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC Q-TOF MSE) analysis. To evaluate the effect of PM2.5 on the antioxidant system, superoxide dismutase (SOD) contents, reduced glutathione (GSH) contents, and malondialdehyde (MDA) contents were measured in colon and brain tissues. AECF significantly ameliorated the imbalance of the antioxidant systems. Also, AECF improved intestinal myeloperoxidase (MPO) activity, the abundance of the gut microbiome, short-chain fatty acids (SCFAs) contents, and tight junction protein expression against PM2.5-induced damage. In addition, AECF prevented PM2.5-induced inflammatory and apoptotic expression via the toll-like receptor-4 (TLR-4)/myeloid differentiation primary response 88 (MyD88) pathway in colon and brain tissues. Additionally, AECF enhanced the mitochondrial function, including the mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) contents in brain tissues. Furthermore, AECF regulated the cholinergic system, such as acetylcholine (ACh) contents, acetylcholinesterase (AChE) activity, and protein expression levels of AChE and choline acetyltransferase (ChAT) in brain tissues. To evaluate the effect of cognitive dysfunction caused by PM2.5-induced intestinal dysfunction, behavior tests such as Y-maze, passive avoidance, and Morris water maze tests were performed. From the results of the behavior tests, AECF ameliorated spatial learning and memory, short-term memory, and long-term learning and memory function. This study confirmed that AECF reduced PM2.5-induced cognitive dysfunction by regulating gut microbiome and inflammation, apoptosis, and mitochondrial function by enhancing the gut-brain axis. Based on these results, this study suggests that AECF, which contains fatty acid amides, might be a potential material for ameliorating PM2.5-induced cognitive dysfunction via gut-brain axis improvement.
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Affiliation(s)
- Tae Yoon Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Jong Min Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Hyo Lim Lee
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Min Ji Go
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Seung Gyum Joo
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Ju Hui Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Han Su Lee
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Dong Yeol Lee
- Research & Development Team, Gyeongnam Anti-Aging Research Institute, Sancheong 52215, Republic of Korea;
| | - Hyun-Jin Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Ho Jin Heo
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
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Bosch AJT, Rohm TV, AlAsfoor S, Low AJY, Baumann Z, Parayil N, Noreen F, Roux J, Meier DT, Cavelti-Weder C. Diesel Exhaust Particle (DEP)-induced glucose intolerance is driven by an intestinal innate immune response and NLRP3 activation in mice. Part Fibre Toxicol 2023; 20:25. [PMID: 37400850 DOI: 10.1186/s12989-023-00536-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND We previously found that air pollution particles reaching the gastrointestinal tract elicit gut inflammation as shown by up-regulated gene expression of pro-inflammatory cytokines and monocyte/macrophage markers. This inflammatory response was associated with beta-cell dysfunction and glucose intolerance. So far, it remains unclear whether gut inflammatory changes upon oral air pollution exposure are causally linked to the development of diabetes. Hence, our aim was to assess the role of immune cells in mediating glucose intolerance instigated by orally administered air pollutants. METHODS To assess immune-mediated mechanisms underlying air pollution-induced glucose intolerance, we administered diesel exhaust particles (DEP; NIST 1650b, 12 µg five days/week) or phosphate-buffered saline (PBS) via gavage for up to 10 months to wild-type mice and mice with genetic or pharmacological depletion of innate or adaptive immune cells. We performed unbiased RNA-sequencing of intestinal macrophages to elucidate signaling pathways that could be pharmacologically targeted and applied an in vitro approach to confirm these pathways. RESULTS Oral exposure to air pollution particles induced an interferon and inflammatory signature in colon macrophages together with a decrease of CCR2- anti-inflammatory/resident macrophages. Depletion of macrophages, NLRP3 or IL-1β protected mice from air pollution-induced glucose intolerance. On the contrary, Rag2-/- mice lacking adaptive immune cells developed pronounced gut inflammation and glucose intolerance upon oral DEP exposure. CONCLUSION In mice, oral exposure to air pollution particles triggers an immune-mediated response in intestinal macrophages that contributes to the development of a diabetes-like phenotype. These findings point towards new pharmacologic targets in diabetes instigated by air pollution particles.
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Affiliation(s)
- Angela J T Bosch
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
| | - Theresa V Rohm
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
| | - Shefaa AlAsfoor
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
| | - Andy J Y Low
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
| | - Zora Baumann
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
| | - Neena Parayil
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
| | - Faiza Noreen
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
- Swiss Institute of Bioinformatics, Basel, 4031, Switzerland
| | - Julien Roux
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
- Swiss Institute of Bioinformatics, Basel, 4031, Switzerland
| | - Daniel T Meier
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland
| | - Claudia Cavelti-Weder
- Department of Biomedicine, University of Basel, Basel, 4031, Switzerland.
- Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, 4031, Switzerland.
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland.
- University Hospital Zurich, Rämistrasse 100, Zürich, 8009, Switzerland.
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Son YS, Son N, Yu WD, Baek A, Park YJ, Lee MS, Lee SJ, Kim DS, Son MY. Particulate matter 10 exposure affects intestinal functionality in both inflamed 2D intestinal epithelial cell and 3D intestinal organoid models. Front Immunol 2023; 14:1168064. [PMID: 37435069 PMCID: PMC10331606 DOI: 10.3389/fimmu.2023.1168064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/30/2023] [Indexed: 07/13/2023] Open
Abstract
Background A growing body of evidence suggests that particulate matter (PM10) enters the gastrointestinal (GI) tract directly, causing the GI epithelial cells to function less efficiently, leading to inflammation and an imbalance in the gut microbiome. PM10 may, however, act as an exacerbation factor in patients with inflamed intestinal epithelium, which is associated with inflammatory bowel disease. Objective The purpose of this study was to dissect the pathology mechanism of PM10 exposure in inflamed intestines. Methods In this study, we established chronically inflamed intestinal epithelium models utilizing two-dimensional (2D) human intestinal epithelial cells (hIECs) and 3D human intestinal organoids (hIOs), which mimic in vivo cellular diversity and function, in order to examine the deleterious effects of PM10 in human intestine-like in vitro models. Results Inflamed 2D hIECs and 3D hIOs exhibited pathological features, such as inflammation, decreased intestinal markers, and defective epithelial barrier function. In addition, we found that PM10 exposure induced a more severe disturbance of peptide uptake in inflamed 2D hIECs and 3D hIOs than in control cells. This was due to the fact that it interferes with calcium signaling, protein digestion, and absorption pathways. The findings demonstrate that PM10-induced epithelial alterations contribute to the exacerbation of inflammatory disorders caused by the intestine. Conclusions According to our findings, 2D hIEC and 3D hIO models could be powerful in vitro platforms for the evaluation of the causal relationship between PM exposure and abnormal human intestinal functions.
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Affiliation(s)
- Ye Seul Son
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Naeun Son
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
- Department of Bio-Molecular Science, Korea Research Institute of Bioscience and Biotechnology (KRIBB) School of Bioscience, University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Won Dong Yu
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
- Department of Bio-Molecular Science, Korea Research Institute of Bioscience and Biotechnology (KRIBB) School of Bioscience, University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Aruem Baek
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Young-Jun Park
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Moo-Seung Lee
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Seon-Jin Lee
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Dae-Soo Kim
- Digital Biotech Innovation Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Mi-Young Son
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
- Department of Bio-Molecular Science, Korea Research Institute of Bioscience and Biotechnology (KRIBB) School of Bioscience, University of Science and Technology (UST), Daejeon, Republic of Korea
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20
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Van Pee T, Nawrot TS, van Leeuwen R, Hogervorst J. Ambient particulate air pollution and the intestinal microbiome; a systematic review of epidemiological, in vivo and, in vitro studies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:162769. [PMID: 36907413 DOI: 10.1016/j.scitotenv.2023.162769] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/13/2023] [Accepted: 03/06/2023] [Indexed: 05/13/2023]
Abstract
A healthy indigenous intestinal microbiome is indispensable for intra- and extra-intestinal human health. Since well-established factors such as diet and antibiotic use only explain 16 % of the inter-individual variation in gut microbiome composition, recent studies have focused on the association between ambient particulate air pollution and the intestinal microbiome. We systematically summarize and discuss all evidence concerning the effect of particulate air pollution on intestinal bacterial diversity indices, specific bacterial taxa, and potential underlying intestinal mechanisms. To this end, all possibly relevant publications published between February 1982 and January 2023 were screened, and eventually, 48 articles were included. The vast majority (n = 35) of these studies were animal studies. The exposure periods investigated in the human epidemiological studies (n = 12) ranged from infancy through elderly. This systematic review found that intestinal microbiome diversity indices were generally negatively associated with particulate air pollution in epidemiological studies, with an increase in taxa belonging to Bacteroidetes (two studies), Deferribacterota (one study), and Proteobacteria (four studies), a decrease in taxa belonging to Verrucomicrobiota (one study), and no consensus for taxa belonging to Actinobacteria (six studies) and Firmicutes (seven studies). There was no unequivocal effect of ambient particulate air pollution exposure on bacterial indices and taxa in animal studies. Only one study in humans examined a possible underlying mechanism; yet, the included in vitro and animal studies depicted higher gut damage, inflammation, oxidative stress, and permeability in exposed versus unexposed animals. Overall, the population-based studies showed a dose-related continuum of short- and long-term ambient particulate air pollution exposure on lower gut diversity and shifts in taxa over the entire life course.
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Affiliation(s)
- Thessa Van Pee
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium; Department of Public Health and Primary Care, Leuven University, Herestraat 49-box 706, 3000 Leuven, Belgium.
| | - Romy van Leeuwen
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Janneke Hogervorst
- Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
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21
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Giri J, Raut S, Rimal B, Adhikari R, Joshi TP, Shah G. Impact of air pollution on human health in different geographical locations of Nepal. ENVIRONMENTAL RESEARCH 2023; 226:115669. [PMID: 36921789 DOI: 10.1016/j.envres.2023.115669] [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: 06/28/2022] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
According to a recent survey, Nepal's urban air quality has been classified as one of the worst in the globe. A large portion of the country's population is subjected to health risks caused by air pollution. As Nepal has a wide variation in altitude coupled with socio-cultural and biological diversities, it is important to understand the different health hazards in the different geographical regions - Terai, Hills and Mountains. Constantly increasing physical infrastructures (such as transport vehicles, open burning of plastics and other fuels) are the main reasons for the escalating air pollution in the country. This study aims to critically review the current air pollution status in different geographical locations along with its impacts on public health in the country. It has been revealed that irrespective of geographic location, the air pollutants interfere with different human physiological systems related to respiration as well as cardiovascular, ophthalmic, and gastrointestinal functioning. Further, the research findings highlighting the influence of prolonged exposure of the population to the air pollution leading to the significant number of deaths have been presented. A notable rise in the number of hospitalized patients suffering from illnesses related to above mentioned pollution borne cases has been reported.
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Affiliation(s)
- Jyoti Giri
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Ghantaghar, Kathmandu, Nepal; Nepal Polymer Institute, P. O. Box 244115, Kathmandu, Nepal; Nepal Development Research Institute, Lalitpur, Kathmandu, Nepal.
| | - Sweccha Raut
- Central Department of Environmental Science, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Binita Rimal
- Central Department of Environmental Science, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Rameshwar Adhikari
- Research Centre for Applied Science and Technology (RECAST), Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Tista Prasai Joshi
- Nepal Academy of Science and Technology (NAST), Khumaltar, Lalitpur, Nepal
| | - Ganesh Shah
- Nepal Academy of Science and Technology (NAST), Khumaltar, Lalitpur, Nepal
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22
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Dolce A, Della Torre S. Sex, Nutrition, and NAFLD: Relevance of Environmental Pollution. Nutrients 2023; 15:nu15102335. [PMID: 37242221 DOI: 10.3390/nu15102335] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/12/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease and represents an increasing public health issue given the limited treatment options and its association with several other metabolic and inflammatory disorders. The epidemic, still growing prevalence of NAFLD worldwide cannot be merely explained by changes in diet and lifestyle that occurred in the last few decades, nor from their association with genetic and epigenetic risk factors. It is conceivable that environmental pollutants, which act as endocrine and metabolic disruptors, may contribute to the spreading of this pathology due to their ability to enter the food chain and be ingested through contaminated food and water. Given the strict interplay between nutrients and the regulation of hepatic metabolism and reproductive functions in females, pollutant-induced metabolic dysfunctions may be of particular relevance for the female liver, dampening sex differences in NAFLD prevalence. Dietary intake of environmental pollutants can be particularly detrimental during gestation, when endocrine-disrupting chemicals may interfere with the programming of liver metabolism, accounting for the developmental origin of NAFLD in offspring. This review summarizes cause-effect evidence between environmental pollutants and increased incidence of NAFLD and emphasizes the need for further studies in this field.
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Affiliation(s)
- Arianna Dolce
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Sara Della Torre
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
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23
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Mazumder MHH, Gandhi J, Majumder N, Wang L, Cumming RI, Stradtman S, Velayutham M, Hathaway QA, Shannahan J, Hu G, Nurkiewicz TR, Tighe RM, Kelley EE, Hussain S. Lung-gut axis of microbiome alterations following co-exposure to ultrafine carbon black and ozone. Part Fibre Toxicol 2023; 20:15. [PMID: 37085867 PMCID: PMC10122302 DOI: 10.1186/s12989-023-00528-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/17/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Microbial dysbiosis is a potential mediator of air pollution-induced adverse outcomes. However, a systemic comparison of the lung and gut microbiome alterations and lung-gut axis following air pollution exposure is scant. In this study, we exposed male C57BL/6J mice to inhaled air, CB (10 mg/m3), O3 (2 ppm) or CB + O3 mixture for 3 h/day for either one day or four consecutive days and were euthanized 24 h post last exposure. The lung and gut microbiome were quantified by 16 s sequencing. RESULTS Multiple CB + O3 exposures induced an increase in the lung inflammatory cells (neutrophils, eosinophils and B lymphocytes), reduced absolute bacterial load in the lungs and increased load in the gut. CB + O3 exposure was more potent as it decreased lung microbiome alpha diversity just after a single exposure. CB + O3 co-exposure uniquely increased Clostridiaceae and Prevotellaceae in the lungs. Serum short chain fatty acids (SCFA) (acetate and propionate) were increased significantly only after CB + O3 co-exposure. A significant increase in SCFA producing bacterial families (Ruminococcaceae, Lachnospiraceae, and Eubacterium) were also observed in the gut after multiple exposures. Co-exposure induced significant alterations in the gut derived metabolite receptors/mediator (Gcg, Glp-1r, Cck) mRNA expression. Oxidative stress related mRNA expression in lungs, and oxidant levels in the BALF, serum and gut significantly increased after CB + O3 exposures. CONCLUSION Our study confirms distinct gut and lung microbiome alterations after CB + O3 inhalation co-exposure and indicate a potential homeostatic shift in the gut microbiome to counter deleterious impacts of environmental exposures on metabolic system.
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Affiliation(s)
- Md Habibul Hasan Mazumder
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Jasleen Gandhi
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Nairrita Majumder
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Lei Wang
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Robert Ian Cumming
- Department of Medicine, Duke University Medical Center, Durham, NC, 2927, USA
| | - Sydney Stradtman
- School of Health Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Murugesan Velayutham
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Department of Biochemistry and Molecular Medicine, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Quincy A Hathaway
- Heart and Vascular Institute, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Jonathan Shannahan
- School of Health Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Gangqing Hu
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Timothy R Nurkiewicz
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Robert M Tighe
- Department of Medicine, Duke University Medical Center, Durham, NC, 2927, USA
| | - Eric E Kelley
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Salik Hussain
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA.
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA.
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA.
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24
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Li S, Guo B, Dong K, Huang S, Wu J, Zhou H, Wu K, Han X, Liang X, Pei X, Zuo H, Lin H, Zhao X. Association of long-term exposure to ambient PM 2.5 and its constituents with gut microbiota: Evidence from a China cohort. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 884:163577. [PMID: 37084912 DOI: 10.1016/j.scitotenv.2023.163577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 03/29/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Accumulating animal experiments and epidemiological studies have found that exposure to fine particulate matter (PM2.5) is associated with altered gut microbiota (GM). However, it is unclear what kind of role the PM2.5 constituents play in the PM2.5-GM association. Therefore, this study aimed to investigate the association of long-term exposure to PM2.5 and its constituents (PMcons) with GM. This study included 1583 participants from a cohort in Southwest China. Satellite remote sensing and chemical transport modelling were used to determine the yearly average concentrations of PMcons. GM data were derived from 16 s sequencing based on stool samples. Generalized propensity score weighting regression and Bayesian Kernel Machine Regression (BKMR) were used to estimate the individual and joint association of exposure to PMcons with the Shannon index. The weighted correlation analysis was used to estimate the association of PMcons with the composition of GM. The result showed that an interquartile range increase of 3-year average black carbon (BC), ammonium, nitrate, organic matter (OM), sulfate, and soil particles (SOIL) were negatively associated with Shannon index with mean difference (95 % confidence interval) being -0.144 (-0.208, -0.080), -0.141 (-0.205, -0.078), -0.126 (-0.184, -0.068), -0.117 (-0.172, -0.062), -0.153 (-0.221, -0.085), and - 0.153 (-0.222, -0.085). BKMR indicated joint exposure to PMcons was associated with decreased Shannon index, and BC had the largest posterior inclusion probability (0.578). Weighted correlation analyses indicated PMcons were associated with decreased Bacteroidetes (r = -0.204, P < 0.001 for PM2.5) and increased Proteobacteria (r = 0.273, P < 0.001 for PM2.5). These results revealed that long-term exposure to PMcons was associated with GM. BC was the most important constituent in the association, indicating that the source of BC should be controlled to mitigate the negative effects of PM2.5 on GM.
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Affiliation(s)
- Sicheng Li
- Department of Epidemiology and Health Statistics, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bing Guo
- Department of Epidemiology and Health Statistics, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ke Dong
- Department of Public Health Laboratory Sciences, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shourui Huang
- Department of Epidemiology and Health Statistics, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jialong Wu
- Department of Epidemiology and Health Statistics, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hanwen Zhou
- Department of Epidemiology and Health Statistics, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Kunpeng Wu
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xinyu Han
- Department of Epidemiology and Health Statistics, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xian Liang
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Xiaofang Pei
- Department of Public Health Laboratory Sciences, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Haojiang Zuo
- Department of Public Health Laboratory Sciences, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Hualiang Lin
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
| | - Xing Zhao
- Department of Epidemiology and Health Statistics, West China School of Public Health, West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China.
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25
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Wen Q, Liu T, Yu Y, Zhang Y, Yang Y, Zheng R, Li L, Chen R, Wang S. Self-Reported Primary Cooking Fuels Use and Risk of Chronic Digestive Diseases: A Prospective Cohort Study of 0.5 Million Chinese Adults. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:47002. [PMID: 37011136 PMCID: PMC10069757 DOI: 10.1289/ehp10486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/22/2023] [Accepted: 03/02/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Household air pollution (HAP) from inefficient combustion of solid fuels is a major health concern worldwide. However, prospective evidence on the health impacts of solid cooking fuels and risks of chronic digestive diseases remains scarce. OBJECTIVES We explored the effects of self-reported primary cooking fuels on the incidence of chronic digestive diseases. METHODS The China Kadoorie Biobank recruited 512,726 participants 30-79 years of age from 10 regions across China. Information on primary cooking fuels at the current and previous two residences was collected via self-reporting at baseline. Incidence of chronic digestive diseases was identified through electronic linkage and active follow-up. Cox proportional hazards regression models were used to estimate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for the associations of self-reported long-term cooking fuel patterns and weighted duration of self-reported solid cooking fuel use with chronic digestive diseases incidence. Linear trend was tested by assigning the medians of weighted duration in each group and then taking those as continuous variables in the models. Subgroup analyses were undertaken across the baseline characteristics of participants. RESULTS During 9.1±1.6 y of follow-up, 16,810 new cases of chronic digestive diseases were documented, among which 6,460 were diagnosed as cancers. Compared with long-term cleaner fuel use, self-reported long-term use of solid cooking fuels (i.e., coal, wood) was associated with elevated risks of chronic digestive diseases (HR=1.08; 95% CI: 1.02, 1.13), including nonalcoholic fatty liver disease (NAFLD) (HR=1.43; 95% CI: 1.10, 1.87), hepatic fibrosis/cirrhosis (HR=1.35; 95% CI: 1.05, 1.73), cholecystitis (HR=1.19; 95% CI: 1.07, 1.32), and peptic ulcers (HR=1.15; 95% CI: 1.00, 1.33). The longer the weighted duration of self-reported solid cooking fuel use, the higher the risks of chronic digestive diseases, hepatic fibrosis/cirrhosis, peptic ulcers, and esophageal cancer (pTrend<0.05). The aforementioned associations were modified by sex and body mass index (BMI). Positive associations of always solid cooking fuel use with chronic digestive disease, hepatic fibrosis/cirrhosis, NAFLD, and cholecystitis were observed among women but not men. The longer the weighted duration of self-reported solid cooking fuel use, the higher the risk of NAFLD among those with a BMI ≥28 kg/m2. DISCUSSION Long-term self-reported solid cooking fuels use was associated with higher risks of chronic digestive diseases. The positive association of HAP from solid cooking fuels with chronic digestive diseases indicates for an imminent promotion of cleaner fuels as public health interventions. https://doi.org/10.1289/EHP10486.
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Affiliation(s)
- Qiaorui Wen
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Tanxin Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Yuelin Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Yunjing Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Yingzi Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Rongshou Zheng
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Ru Chen
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shengfeng Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
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Lafuente E, Carles L, Walser J, Giulio M, Wullschleger S, Stamm C, Räsänen K. Effects of anthropogenic stress on hosts and their microbiomes: Treated wastewater alters performance and gut microbiome of a key detritivore (
Asellus aquaticus
). Evol Appl 2023; 16:824-848. [PMID: 37124094 PMCID: PMC10130563 DOI: 10.1111/eva.13540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 01/24/2023] [Accepted: 02/17/2023] [Indexed: 04/03/2023] Open
Abstract
Human activity is a major driver of ecological and evolutionary change in wild populations and can have diverse effects on eukaryotic organisms as well as on environmental and host-associated microbial communities. Although host-microbiome interactions can be a major determinant of host fitness, few studies consider the joint responses of hosts and their microbiomes to anthropogenic changes. In freshwater ecosystems, wastewater is a widespread anthropogenic stressor that represents a multifarious environmental perturbation. Here, we experimentally tested the impact of treated wastewater on a keystone host (the freshwater isopod Asellus aquaticus) and its gut microbiome. We used a semi-natural flume experiment, in combination with 16S rRNA amplicon sequencing, to assess how different concentrations (0%, 30%, and 80%) of nonfiltered wastewater (i.e. with chemical toxicants, nutrients, organic particles, and microbes) versus ultrafiltered wastewater (i.e. only dissolved pollutants and nutrients) affected host survival, growth, and food consumption as well as mid- and hindgut bacterial community composition and diversity. Our results show that while host survival was not affected by the treatments, host growth increased and host feeding rate decreased with nonfiltered wastewater - potentially indicating that A. aquaticus fed on organic matter and microbes available in nonfiltered wastewater. Furthermore, even though the midgut microbiome (diversity and composition) was not affected by any of our treatments, nonfiltered wastewater influenced bacterial composition (but not diversity) in the hindgut. Ultrafiltered wastewater, on the other hand, affected both community composition and bacterial diversity in the hindgut, an effect that in our system differed between sexes. While the functional consequences of microbiome changes and their sex specificity are yet to be tested, our results indicate that different components of multifactorial stressors (i.e. different constituents of wastewater) can affect hosts and their microbiome in distinct (even opposing) manners and have a substantial impact on eco-evolutionary responses to anthropogenic stressors.
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Affiliation(s)
- Elvira Lafuente
- Eawag: Swiss Federal Institute of Aquatic Science and TechnologyDübendorfSwitzerland
- Instituto Gulbenkian de CiênciaOeirasPortugal
| | - Louis Carles
- Eawag: Swiss Federal Institute of Aquatic Science and TechnologyDübendorfSwitzerland
| | - Jean‐Claude Walser
- Department of Environmental Systems Science D‐USYS, Genetic Diversity CentreSwiss Federal Institute of Technology (ETH), ZürichZürichSwitzerland
| | - Marco Giulio
- Eawag: Swiss Federal Institute of Aquatic Science and TechnologyDübendorfSwitzerland
| | - Simon Wullschleger
- Eawag: Swiss Federal Institute of Aquatic Science and TechnologyDübendorfSwitzerland
| | - Christian Stamm
- Eawag: Swiss Federal Institute of Aquatic Science and TechnologyDübendorfSwitzerland
| | - Katja Räsänen
- Eawag: Swiss Federal Institute of Aquatic Science and TechnologyDübendorfSwitzerland
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyväskyläFinland
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Ji Y, Su X, Zhang F, Huang Z, Zhang X, Chen Y, Song Z, Li L. Impacts of short-term air pollution exposure on appendicitis admissions: Evidence from one of the most polluted cities in mainland China. Front Public Health 2023; 11:1144310. [PMID: 37006531 PMCID: PMC10061118 DOI: 10.3389/fpubh.2023.1144310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/23/2023] [Indexed: 03/18/2023] Open
Abstract
BackgroundEmerging evidence indicates that air pollutants contribute to the development and progression of gastrointestinal diseases. However, there is scarce evidence of an association with appendicitis in mainland China.MethodsIn this study, Linfen city, one of the most polluted cities in mainland China, was selected as the study site to explore whether air pollutants could affect appendicitis admissions and to identify susceptible populations. Daily data on appendicitis admissions and three principal air pollutants, including inhalable particulate matter (PM10), nitrogen dioxide (NO2), and sulfur dioxide (SO2) were collected in Linfen, China. The impacts of air pollutants on appendicitis were studied by using a generalized additive model (GAM) combined with the quasi-Poisson function. Stratified analyses were also performed by sex, age, and season.ResultsWe observed a positive association between air pollution and appendicitis admissions. For a 10 μg/m3 increase in pollutants at lag01, the corresponding relative risks (RRs) and 95% confidence intervals (95% CIs) were 1.0179 (1.0129–1.0230) for PM10, 1.0236 (1.0184–1.0288) for SO2, and 1.0979 (1.0704–1.1262) for NO2. Males and people aged 21–39 years were more susceptible to air pollutants. Regarding seasons, the effects seemed to be stronger during the cold season, but there was no statistically significant difference between the seasonal groups.ConclusionsOur findings indicated that short-term air pollution exposure was significantly correlated with appendicitis admissions, and active air pollution interventions should be implemented to reduce appendicitis hospitalizations, especially for males and people aged 21–39 years.
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Affiliation(s)
- Yanhu Ji
- School of Public Health, Shantou University, Shantou, China
- Injury Prevention Research Center, Shantou University Medical College, Shantou, China
| | | | - Fengying Zhang
- China National Environmental Monitoring Center, Beijing, China
| | - Zepeng Huang
- The Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Xiaowei Zhang
- School of Public Health, Shantou University, Shantou, China
- Injury Prevention Research Center, Shantou University Medical College, Shantou, China
| | - Yueliang Chen
- School of Public Health, Shantou University, Shantou, China
- Injury Prevention Research Center, Shantou University Medical College, Shantou, China
| | - Ziyi Song
- School of Public Health, Shantou University, Shantou, China
- Injury Prevention Research Center, Shantou University Medical College, Shantou, China
| | - Liping Li
- School of Public Health, Shantou University, Shantou, China
- Injury Prevention Research Center, Shantou University Medical College, Shantou, China
- *Correspondence: Liping Li
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28
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Cheng TY, Chang CC, Luo CS, Chen KY, Yeh YK, Zheng JQ, Wu SM. Targeting Lung-Gut Axis for Regulating Pollution Particle-Mediated Inflammation and Metabolic Disorders. Cells 2023; 12:901. [PMID: 36980242 PMCID: PMC10047528 DOI: 10.3390/cells12060901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
Cigarette smoking (CS) or ambient particulate matter (PM) exposure is a risk factor for metabolic disorders, such as insulin resistance (IR), increased plasma triglycerides, hyperglycemia, and diabetes mellitus (DM); it can also cause gut microbiota dysbiosis. In smokers with metabolic disorders, CS cessation decreases the risks of serious pulmonary events, inflammation, and metabolic disorder. This review included recent studies examining the mechanisms underlying the effects of CS and PM on gut microbiota dysbiosis and metabolic disorder development; one of the potential mechanisms is the disruption of the lung-gut axis, leading to gut microbiota dysbiosis, intestinal dysfunction, systemic inflammation, and metabolic disease. Short-chain fatty acids (SCFAs) are the primary metabolites of gut bacteria, which are derived from the fermentation of dietary fibers. They activate G-protein-coupled receptor (GPCR) signaling, suppress histone deacetylase (HDAC) activity, and inhibit inflammation, facilitating the maintenance of gut health and biofunction. The aforementioned gut microbiota dysbiosis reduces SCFA levels. Treatment targeting SCFA/GPCR signaling may alleviate air pollution-associated inflammation and metabolic disorders, which involve lung-gut axis disruption.
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Affiliation(s)
- Tzu-Yu Cheng
- Division of Cardiovascular Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan;
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chih-Cheng Chang
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (C.-C.C.); (C.-S.L.); (K.-Y.C.); (Y.-K.Y.); (J.-Q.Z.)
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center for Thoracic Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Ching-Shan Luo
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (C.-C.C.); (C.-S.L.); (K.-Y.C.); (Y.-K.Y.); (J.-Q.Z.)
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center for Thoracic Medicine, Taipei Medical University, Taipei 11031, Taiwan
- International Ph.D. Program in Cell Therapy and Regenerative Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (C.-C.C.); (C.-S.L.); (K.-Y.C.); (Y.-K.Y.); (J.-Q.Z.)
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center for Thoracic Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Yun-Kai Yeh
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (C.-C.C.); (C.-S.L.); (K.-Y.C.); (Y.-K.Y.); (J.-Q.Z.)
- TMU Research Center for Thoracic Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Jing-Quan Zheng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (C.-C.C.); (C.-S.L.); (K.-Y.C.); (Y.-K.Y.); (J.-Q.Z.)
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center for Thoracic Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Sheng-Ming Wu
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (C.-C.C.); (C.-S.L.); (K.-Y.C.); (Y.-K.Y.); (J.-Q.Z.)
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center for Thoracic Medicine, Taipei Medical University, Taipei 11031, Taiwan
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Bosch AJT, Rohm TV, AlAsfoor S, Low AJY, Keller L, Baumann Z, Parayil N, Stawiski M, Rachid L, Dervos T, Mitrovic S, Meier DT, Cavelti-Weder C. Lung versus gut exposure to air pollution particles differentially affect metabolic health in mice. Part Fibre Toxicol 2023; 20:7. [PMID: 36895000 PMCID: PMC9996885 DOI: 10.1186/s12989-023-00518-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/14/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Air pollution has emerged as an unexpected risk factor for diabetes. However, the mechanism behind remains ill-defined. So far, the lung has been considered as the main target organ of air pollution. In contrast, the gut has received little scientific attention. Since air pollution particles can reach the gut after mucociliary clearance from the lungs and through contaminated food, our aim was to assess whether exposure deposition of air pollution particles in the lung or the gut drive metabolic dysfunction in mice. METHODS To study the effects of gut versus lung exposure, we exposed mice on standard diet to diesel exhaust particles (DEP; NIST 1650b), particulate matter (PM; NIST 1649b) or phosphate-buffered saline by either intratracheal instillation (30 µg 2 days/week) or gavage (12 µg 5 days/week) over at least 3 months (total dose of 60 µg/week for both administration routes, equivalent to a daily inhalation exposure in humans of 160 µg/m3 PM2.5) and monitored metabolic parameters and tissue changes. Additionally, we tested the impact of the exposure route in a "prestressed" condition (high-fat diet (HFD) and streptozotocin (STZ)). RESULTS Mice on standard diet exposed to particulate air pollutants by intratracheal instillation developed lung inflammation. While both lung and gut exposure resulted in increased liver lipids, glucose intolerance and impaired insulin secretion was only observed in mice exposed to particles by gavage. Gavage with DEP created an inflammatory milieu in the gut as shown by up-regulated gene expression of pro-inflammatory cytokines and monocyte/macrophage markers. In contrast, liver and adipose inflammation markers were not increased. Beta-cell secretory capacity was impaired on a functional level, most likely induced by the inflammatory milieu in the gut, and not due to beta-cell loss. The differential metabolic effects of lung and gut exposures were confirmed in a "prestressed" HFD/STZ model. CONCLUSIONS We conclude that separate lung and gut exposures to air pollution particles lead to distinct metabolic outcomes in mice. Both exposure routes elevate liver lipids, while gut exposure to particulate air pollutants specifically impairs beta-cell secretory capacity, potentially instigated by an inflammatory milieu in the gut.
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Affiliation(s)
- Angela J T Bosch
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Theresa V Rohm
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Shefaa AlAsfoor
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Andy J Y Low
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Lena Keller
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Zora Baumann
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Neena Parayil
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Marc Stawiski
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Leila Rachid
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Thomas Dervos
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Sandra Mitrovic
- Department of Laboratory Medicine, University Hospital Basel, 4031, Basel, Switzerland
| | - Daniel T Meier
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland
| | - Claudia Cavelti-Weder
- Department of Biomedicine, University of Basel, 4031, Basel, Switzerland. .,Clinic of Endocrinology, Diabetes and Metabolism, University Hospital Basel, 4031, Basel, Switzerland. .,Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Rämistrasse 100, 8009, Zurich, Switzerland.
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30
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Rueda-Ruzafa L, Roman P, Cardona D, Requena M, Ropero-Padilla C, Alarcón R. Environmental pesticide exposure and the risk of irritable bowel syndrome: A case-control study. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 98:104076. [PMID: 36754128 DOI: 10.1016/j.etap.2023.104076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/27/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
The agricultural model in southern Spain is highly productive, mainly due to the intensive cultivation under plastic. Despite strict pesticide regulation, human exposure to pesticides in the environment has been connected to an increase in diseases such as celiac disease. Certain pesticides have also been associated to the disruption of the intestinal microbiota, which has been tied to the development of irritable bowel syndrome (IBS). A case-control study was conducted in Andalusia, south Spain, to assess the prevalence and risk of IBS related to pesticide exposure. This research found a high prevalence of IBS in Andalusia between 2000 and 2021 in areas with high pesticide exposure using agronomic criteria. Furthermore, the odds ratio for IBS was significantly higher in the population with high pesticide exposure. This study suggests that pesticides may be involved in IBS, whereas more research is needed to determine the role of pesticides in IBS symptomatology.
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Affiliation(s)
- Lola Rueda-Ruzafa
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, Carretera Sacramento S/N, La Cañada, 04120 Almeria, Spain.
| | - Pablo Roman
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, Carretera Sacramento S/N, La Cañada, 04120 Almeria, Spain; Health Research Center, University of Almeria, Carretera Sacramento S/N, La Cañada 04120, Spain.
| | - Diana Cardona
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, Carretera Sacramento S/N, La Cañada, 04120 Almeria, Spain; Health Research Center, University of Almeria, Carretera Sacramento S/N, La Cañada 04120, Spain.
| | - Mar Requena
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, Carretera Sacramento S/N, La Cañada, 04120 Almeria, Spain; Health Research Center, University of Almeria, Carretera Sacramento S/N, La Cañada 04120, Spain.
| | - Carmen Ropero-Padilla
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, Carretera Sacramento S/N, La Cañada, 04120 Almeria, Spain.
| | - Raquel Alarcón
- Faculty of Health Sciences, Department of Nursing, Physiotherapy and Medicine, University of Almeria, Carretera Sacramento S/N, La Cañada, 04120 Almeria, Spain; Health Research Center, University of Almeria, Carretera Sacramento S/N, La Cañada 04120, Spain.
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Air Pollution as a Risk Indicator for Periodontitis. Biomedicines 2023; 11:biomedicines11020443. [PMID: 36830979 PMCID: PMC9953183 DOI: 10.3390/biomedicines11020443] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Air pollutants can influence local and systemic inflammation, oxidative stress and microbiome composition. Therefore, air pollution may potentially represent an unexplored modifiable risk indicator for periodontitis. The aim of the current cross-sectional study was to investigate the epidemiological association between outdoor air pollution and periodontitis in a representative sample of the South Korean population. METHODS A total of 42,020 individuals, which were representative of 35.2 million South Koreans, were examined. The mean annual levels of particulate matter of 10 μm (PM10), ozone, sulfur dioxide (SO2), nitrogen dioxide (NO2) and humidity, were studied. Periodontitis was defined according to the Community Periodontal Index (CPI ≥ 3). Simple and multiple regression analyses using four different models were applied. RESULTS Every 5-μg/m3 increase in PM10 (OR = 1.17; 95% confidence interval-CI: 1.11-1.24) and of 0.005 ppm in ozone levels (OR = 1.4; 95% CI: 1.00-1.30) were positively associated with periodontitis prevalence. Conversely, every 5% increase in humidity (OR = 0.94; 95% CI: 0.90-0.99) and 0.003 ppm increase in NO2 levels (OR = 0.93; 95% CI: 0.89-0.96) were inversely associated with periodontitis occurrence. CONCLUSIONS In this nationally representative population several air pollutants were found to be associated with periodontitis occurrence. Hence, the present results suggest that air pollution may be a new modifiable risk indicator for periodontitis.
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Tian Y, Li Y, Sun S, Dong Y, Tian Z, Zhan L, Wang X. Effects of urban particulate matter on the quality of erythrocytes. CHEMOSPHERE 2023; 313:137560. [PMID: 36526140 DOI: 10.1016/j.chemosphere.2022.137560] [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: 09/06/2022] [Revised: 11/20/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
With the acceleration of industrialisation and urbanisation, air pollution has become a serious global concern as a hazard to human health, with urban particulate matter (UPM) accounting for the largest share. UPM can rapidly pass into and persist within systemic circulation. However, few studies exist on whether UPM may have any impact on blood components. In this study, UPM standards (SRM1648a) were used to assess the influence of UPM on erythrocyte quality in terms of oxidative and metabolic damage as well as phagocytosis by macrophages in vitro and clearance in vivo. Our results showed that UPM had weak haemolytic properties. It can oxidise haemoglobin and influence the oxygen-carrying function, redox balance, and metabolism of erythrocytes. UPM increases the content of reactive oxygen species (ROS) and decreases antioxidant function according to the data of malonaldehyde (MDA), glutathione (GSH), and glucose 6 phosphate dehydrogenase (G6PDH). UPM can adhere to or be internalised by erythrocytes at higher concentrations, which can alter their morphology. Superoxide radicals produced in the co-incubation system further disrupted the structure of red blood cell membranes, thereby lowering the resistance to the hypotonic solution, as reflected by the osmotic fragility test. Moreover, UPM leads to an increase in phosphatidylserine exposure in erythrocytes and subsequent clearance by the mononuclear phagocytic system in vivo. Altogether, this study suggests that the primary function of erythrocytes may be affected by UPM, providing a warning for erythrocyte quality in severely polluted areas. For critically ill patients, transfusion of erythrocytes with lesions in morphology and function will have serious clinical consequences, suggesting that potential risks should be considered during blood donation screening. The current work expands the scope of blood safety studies.
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Affiliation(s)
- Yaxian Tian
- Institute of Health Service and Transfusion Medicine, Beijing, 100850, China; Department of Central Laboratory, Liaocheng People's Hospital, Liaocheng, 252000, Shandong Province, China; School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China
| | - Yuxuan Li
- Institute of Health Service and Transfusion Medicine, Beijing, 100850, China
| | - Sujing Sun
- Institute of Health Service and Transfusion Medicine, Beijing, 100850, China
| | - Yanrong Dong
- Institute of Health Service and Transfusion Medicine, Beijing, 100850, China
| | - Zhaoju Tian
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China.
| | - Linsheng Zhan
- Institute of Health Service and Transfusion Medicine, Beijing, 100850, China.
| | - Xiaohui Wang
- Institute of Health Service and Transfusion Medicine, Beijing, 100850, China.
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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: 6] [Impact Index Per Article: 6.0] [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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Hedström AK, Segersson D, Hillert J, Stridh P, Kockum I, Olsson T, Bellander T, Alfredsson L. Association between exposure to combustion-related air pollution and multiple sclerosis risk. Int J Epidemiol 2023:6984751. [PMID: 36629499 DOI: 10.1093/ije/dyac234] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 12/16/2022] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Smoking and occupational pulmonary irritants contribute to multiple sclerosis (MS) development. We aimed to study the association between ambient air pollution and MS risk and potential interaction with the human leukocyte antigen (HLA)-DRB1*15:01 allele. METHODS Exposure to combustion-related air pollution was estimated as outdoor levels of nitrogen oxides (NOx) at the participants' residence locations, by spatially resolved dispersion modelling for the years 1990-18. Using two population-based case-control studies (6635 cases, 8880 controls), NOx levels were associated with MS risk by calculating odds ratios (OR) with 95% confidence intervals (CI) using logistic regression models. Interaction between high NOx levels and the HLA-DRB1*15:01 allele regarding MS risk was calculated by the attributable proportion due to interaction (AP). In addition, a register study was performed comprising all MS cases in Sweden who had received their diagnosis between 1993 and 2018 (n = 22 173), with 10 controls per case randomly selected from the National Population register. RESULTS Residential air pollution was associated with MS risk. NOx levels (3-year average) exceeding the 90th percentile (24.6 µg/m3) were associated with an OR of 1.37 (95% CI 1.10-1.76) compared with levels below the 25th percentile (5.9 µg/m3), with a trend of increasing risk of MS with increasing levels of NOx (P <0.0001). A synergistic effect was observed between high NOx levels (exceeding the lower quartile among controls) and the HLA-DRB1*15:01 allele regarding MS risk (AP 0.26, 95% CI 0.13-0.29). CONCLUSIONS Our findings indicate that moderate levels of combustion-related ambient air pollution may play a role in MS development.
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Affiliation(s)
- Anna Karin Hedström
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - David Segersson
- Air Quality Research Unit, Swedish Meteorological and Hydrological Institute, Norrköping, Sweden.,Department of Environmental Science, Stockholm University, Stockholm, Sweden
| | - Jan Hillert
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Pernilla Stridh
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Ingrid Kockum
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Tomas Olsson
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Tom Bellander
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Lars Alfredsson
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Center for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
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Huang Z, Li Y, Park H, Ho M, Bhardwaj K, Sugimura N, Lee HW, Meng H, Ebert MP, Chao K, Burgermeister E, Bhatt AP, Shetty SA, Li K, Wen W, Zuo T. Unveiling and harnessing the human gut microbiome in the rising burden of non-communicable diseases during urbanization. Gut Microbes 2023; 15:2237645. [PMID: 37498052 PMCID: PMC10376922 DOI: 10.1080/19490976.2023.2237645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023] Open
Abstract
The world is witnessing a global increase in the urban population, particularly in developing Asian and African countries. Concomitantly, the global burden of non-communicable diseases (NCDs) is rising, markedly associated with the changing landscape of lifestyle and environment during urbanization. Accumulating studies have revealed the role of the gut microbiome in regulating the immune and metabolic homeostasis of the host, which potentially bridges external factors to the host (patho-)physiology. In this review, we discuss the rising incidences of NCDs during urbanization and their links to the compositional and functional dysbiosis of the gut microbiome. In particular, we elucidate the effects of urbanization-associated factors (hygiene/pollution, urbanized diet, lifestyles, the use of antibiotics, and early life exposure) on the gut microbiome underlying the pathogenesis of NCDs. We also discuss the potential and feasibility of microbiome-inspired and microbiome-targeted approaches as novel avenues to counteract NCDs, including fecal microbiota transplantation, diet modulation, probiotics, postbiotics, synbiotics, celobiotics, and precision antibiotics.
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Affiliation(s)
- Ziyu Huang
- Key Laboratory of Human Microbiome and Chronic Diseases, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
- Guangdong Institute of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- Biomedical Innovation Centre, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yue Li
- Key Laboratory of Human Microbiome and Chronic Diseases, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
- Guangdong Institute of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- Biomedical Innovation Centre, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Heekuk Park
- Department of Medicine, Division of Infectious Diseases, Columbia University Irving Medical Centre, New York, NY, USA
| | - Martin Ho
- Department of Engineering, University of Cambridge, Cambridge, UK
| | - Kanchan Bhardwaj
- Department of Biotechnology, Faculty of Engineering and Technology, Manav Rachna International Institute of Research and Studies, Haryana, India
| | - Naoki Sugimura
- Gastrointestinal Centre and Institute of Minimally-Invasive Endoscopic Care (iMEC), Sano Hospital, Kobe, Japan
| | - Hye Won Lee
- Institute of Gastroenterology and Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Huicui Meng
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou, China
- Guangdong Province Engineering Laboratory for Nutrition Translation, Guangzhou, China
| | - Matthias P. Ebert
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- DKFZ-Hector Cancer Institute, Mannheim, Germany
- Mannheim Cancer Centre (MCC), University Medical Centre Mannheim, Mannheim, Germany
| | - Kang Chao
- The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Elke Burgermeister
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Aadra P. Bhatt
- Department of Medicine, Centre for Gastrointestinal Biology and Disease, and the Lineberger Comprehensive Cancer Centre, University of North Carolina, Chapel Hill, NC, USA
| | - Sudarshan A. Shetty
- Department of Medical Microbiology and Infection Prevention, University Medical Centre Groningen, Groningen, The Netherlands
| | - Kai Li
- Key Laboratory of Human Microbiome and Chronic Diseases, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
- Guangdong Institute of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Weiping Wen
- Key Laboratory of Human Microbiome and Chronic Diseases, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
- Biomedical Innovation Centre, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Tao Zuo
- Key Laboratory of Human Microbiome and Chronic Diseases, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
- Guangdong Institute of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- Biomedical Innovation Centre, the Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
- The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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Dorofeyev A, Dorofeyeva A, Borysov A, Tolstanova G, Borisova T. Gastrointestinal health: changes of intestinal mucosa and microbiota in patients with ulcerative colitis and irritable bowel syndrome from PM 2.5-polluted regions of Ukraine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:7312-7324. [PMID: 36038689 DOI: 10.1007/s11356-022-22710-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
Here, clinical studies of patients were conducted to assess changes in patients with ulcerative colitis (UC) and irritable bowel syndrome (IBS) associated with air pollution by PM. A comparative study of 100 patients with UC and 75 with IBS from highly (HPRs) and low (LPRs) PM2.5-polluted regions of Ukraine was conducted. Biopsy of the intestinal mucosa of patients with UC from HPRs showed severe cellular infiltration. Patients with IBS from HPRs had changes in the superficial epithelium (focal desquamation), and inflammatory-cellular infiltration of mucous membrane of the colon. In patients with UC, changes in mucus production were found, which were more significant in HPR patients. PAS response did not depend on the residence; the level of MUC2 was significantly lower in HPR patients with UC (1.12 vs 2.15 au). In patients with UC from HPRs, a decrease in Bacteroidetes (34.0 vs. 39.0 small intestinal bacterial overgrowth (SIBO), ppm) and an increase in Proteobacteria compared to LPRs were shown. In IBS patients, significant differences were found in the level of Proteobacteria, which was higher in HPRs. The level of regulatory flora Akkermansia muciniphila and Faecalibacterium prausnitzii reduced in patients with UC from HPRs. In patients from LPRs, the level of Akkermansia muciniphila raised above normal (2.8 vs 4.7 SIBO, ppm). Similar changes of regulatory flora have been identified in patients with IBS from different regions. Therefore, a more severe course of the disease (more pronounced cellular infiltration and violation of the microbiota) was shown in patients with UC from HPRs as compared to LPRs.
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Affiliation(s)
| | - Anna Dorofeyeva
- D. F. Chebotarev State Institute of Gerontology of the National Academy of Medical Sciences of Ukraine, Kiev, Ukraine
| | - Arsenii Borysov
- Department of Neurochemistry, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, 9 Leontovicha Street, Kiev, 01054, Ukraine
| | | | - Tatiana Borisova
- Department of Neurochemistry, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, 9 Leontovicha Street, Kiev, 01054, Ukraine.
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Van Pee T, Hogervorst J, Dockx Y, Witters K, Thijs S, Wang C, Bongaerts E, Van Hamme JD, Vangronsveld J, Ameloot M, Raes J, Nawrot TS. Accumulation of Black Carbon Particles in Placenta, Cord Blood, and Childhood Urine in Association with the Intestinal Microbiome Diversity and Composition in Four- to Six-Year-Old Children in the ENVIR ONAGE Birth Cohort. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:17010. [PMID: 36719212 PMCID: PMC9888258 DOI: 10.1289/ehp11257] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
BACKGROUND The gut microbiome plays an essential role in human health. Despite the link between air pollution exposure and various diseases, its association with the gut microbiome during susceptible life periods remains scarce. OBJECTIVES In this study, we examined the association between black carbon particles quantified in prenatal and postnatal biological matrices and bacterial richness and diversity measures, and bacterial families. METHODS A total of 85 stool samples were collected from 4- to 6-y-old children enrolled in the ENVIRonmental influence ON early AGEing birth cohort. We performed 16S rRNA gene sequencing to calculate bacterial richness and diversity indices (Chao1 richness, Shannon diversity, and Simpson diversity) and the relative abundance of bacterial families. Black carbon particles were quantified via white light generation under femtosecond pulsed laser illumination in placental tissue and cord blood, employed as prenatal exposure biomarkers, and in urine, used as a post-natal exposure biomarker. We used robust multivariable-adjusted linear models to examine the associations between quantified black carbon loads and measures of richness (Chao1 index) and diversity (Shannon and Simpson indices), adjusting for parity, season of delivery, sequencing batch, age, sex, weight and height of the child, and maternal education. Additionally, we performed a differential relative abundance analysis of bacterial families with a correction for sampling fraction bias. Results are expressed as percentage difference for a doubling in black carbon loads with 95% confidence interval (CI). RESULTS Two diversity indices were negatively associated with placental black carbon [Shannon: -4.38% (95% CI: -8.31%, -0.28%); Simpson: -0.90% (95% CI: -1.76%, -0.04%)], cord blood black carbon [Shannon: -3.38% (95% CI: -5.66%, -0.84%); Simpson: -0.91 (95% CI: -1.66%, -0.16%)], and urinary black carbon [Shannon: -3.39% (95% CI: -5.77%, -0.94%); Simpson: -0.89% (95% CI: -1.37%, -0.40%)]. The explained variance of black carbon on the above indices varied from 6.1% to 16.6%. No statistically significant associations were found between black carbon load and the Chao1 richness index. After multiple testing correction, placental black carbon was negatively associated with relative abundance of the bacterial families Defluviitaleaceae and Marinifilaceae, and urinary black carbon with Christensenellaceae and Coriobacteriaceae; associations with cord blood black carbon were not statistically significant after correction. CONCLUSION Black carbon particles quantified in prenatal and postnatal biological matrices were associated with the composition and diversity of the childhood intestinal microbiome. These findings address the influential role of exposure to air pollution during pregnancy and early life in human health. https://doi.org/10.1289/EHP11257.
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Affiliation(s)
- Thessa Van Pee
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Janneke Hogervorst
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Yinthe Dockx
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Katrien Witters
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Sofie Thijs
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Congrong Wang
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Eva Bongaerts
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Jonathan D Van Hamme
- Department of Biological Sciences, Thompson Rivers University, Kamloops, British Columbia, Canada
| | - Jaco Vangronsveld
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
- Department of Plant Physiology and Biophysics, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Lublin, Poland
| | - Marcel Ameloot
- Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Jeroen Raes
- Department of Microbiology and Immunology, Rega Instituut, KU Leuven-University of Leuven, Leuven, Belgium
- Center for Microbiology, VIB, Leuven, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
- Department of Public Health and Primary Care, Leuven University, Leuven, Belgium
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Zordão OP, Campolim CM, Yariwake VY, Castro G, Ferreira CKDO, Santos A, Norberto S, Veras MM, Saad MJA, Saldiva PHN, Kim YB, Prada PO. Maternal exposure to air pollution alters energy balance transiently according to gender and changes gut microbiota. Front Endocrinol (Lausanne) 2023; 14:1069243. [PMID: 37082122 PMCID: PMC10112381 DOI: 10.3389/fendo.2023.1069243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 03/07/2023] [Indexed: 04/22/2023] Open
Abstract
Introduction The timing of maternal exposure to air pollution is crucial to define metabolic changes in the offspring. Here we aimed to determine the most critical period of maternal exposure to particulate matter (PM2.5) that impairs offspring's energy metabolism and gut microbiota composition. Methods Unexposed female and male C57BL/6J mice were mated. PM2.5 or filtered air (FA) exposure occurred only in gestation (PM2.5/FA) or lactation (FA/PM2.5). We studied the offspring of both genders. Results PM2.5 exposure during gestation increased body weight (BW) at birth and from weaning to young in male adulthood. Leptin levels, food intake, Agrp, and Npy levels in the hypothalamus were also increased in young male offspring. Ikbke, Tnf increased in male PM2.5/FA. Males from FA/PM2.5 group were protected from these phenotypes showing higher O2 consumption and Ucp1 in the brown adipose tissue. In female offspring, we did not see changes in BW at weaning. However, adult females from PM2.5/FA displayed higher BW and leptin levels, despite increased energy expenditure and thermogenesis. This group showed a slight increase in food intake. In female offspring from FA/PM2.5, BW, and leptin levels were elevated. This group displayed higher energy expenditure and a mild increase in food intake. To determine if maternal exposure to PM2.5 could affect the offspring's gut microbiota, we analyzed alpha diversity by Shannon and Simpson indexes and beta diversity by the Linear Discriminant Analysis (LDA) in offspring at 30 weeks. Unlike males, exposure during gestation led to higher adiposity and leptin maintenance in female offspring at this age. Gestation exposure was associated with decreased alpha diversity in the gut microbiota in both genders. Discussion Our data support that exposure to air pollution during gestation is more harmful to metabolism than exposure during lactation. Male offspring had an unfavorable metabolic phenotype at a young age. However, at an older age, only females kept more adiposity. Ultimately, our data highlight the importance of controlling air pollution, especially during gestation.
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Affiliation(s)
- Olivia Pizetta Zordão
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Clara Machado Campolim
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Victor Yuji Yariwake
- Laboratory of Environmental and Experimental Pathology, Department of Pathology, University of Sao Paulo School of Medicine, Sao Paulo, SP, Brazil
| | - Gisele Castro
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | | | - Andrey Santos
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Sónia Norberto
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Mariana Matera Veras
- Laboratory of Environmental and Experimental Pathology, Department of Pathology, University of Sao Paulo School of Medicine, Sao Paulo, SP, Brazil
| | - Mario Jose Abdalla Saad
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Paulo Hilário Nascimento Saldiva
- Laboratory of Environmental and Experimental Pathology, Department of Pathology, University of Sao Paulo School of Medicine, Sao Paulo, SP, Brazil
| | - Young-Bum Kim
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
| | - Patricia Oliveira Prada
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
- School of Applied Sciences, State University of Campinas (UNICAMP), Limeira, SP, Brazil
- *Correspondence: Patricia Oliveira Prada, ;
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Li C, Yu JL, Xu JJ, He YC, Qin KZ, Chen L, Huang HF, Wu YT. Interactive effects of ambient air pollution and sunshine duration on the risk of intrahepatic cholestasis of pregnancy. ENVIRONMENTAL RESEARCH 2022; 215:114345. [PMID: 36116502 DOI: 10.1016/j.envres.2022.114345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION While the associations among ambient pollutants and various pregnancy complications are well documented, the effect of ambient pollutants on intrahepatic cholestasis of pregnancy (ICP) has not been examined. This study aimed to explore the effects of ambient pollutants and sunshine duration on ICP. METHODS The study enrolled 169,971 pregnant women who delivered between 2015 and 2020 in two hospitals. The associations between ICP and exposure to ambient pollutants and sunshine duration, averaged throughout different periods (including the 3 months before conception, 1st trimester and 2nd trimester), were estimated using a generalized linear model. The interaction effects of ambient pollutants and sunshine duration on ICP were estimated. RESULTS The fitted curves for ICP incidence were similar to the temporal trends of PM2.5, PM10, SO2, CO and NO2 but not that of O3. The risk of ICP was significantly elevated following a 10-μg/m3 increase in PM2.5 (aOR [adjusted odds ratio] = 1.057, 95% CI [confidence interval]: 1.017-1.099) and PM10 (aOR = 1.043, 95% CI: 1.013-1.074) and a 1-h decrease in sunshine duration (aOR = 1.039, 95% CI: 1.011-1.068) during the 3 months before conception. In the second trimester, a 1-μg/m3 increase in the concentration of SO2 was associated with an increased risk of ICP (aOR = 1.011, 95% CI: 1.001-1.021). Increased concentrations of PM2.5 and PM10 had interactive effects with reduced sunshine duration during the 3 months before conception on increasing the risk of ICP. CONCLUSIONS Exposure to PM2.5 and PM10 during the 3 months before conception and exposure to SO2 in the second trimester were associated with an increased ICP risk. Reduced sunshine duration had an interactive effect with increased concentrations of PM2.5 and PM10 during the 3 months before conception on the occurrence of ICP.
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Affiliation(s)
- Cheng Li
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Jia-Le Yu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jing-Jing Xu
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Yi-Chen He
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Kai-Zhou Qin
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Lei Chen
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - He-Feng Huang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China; International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Yan-Ting Wu
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China.
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Serafini MM, Maddalon A, Iulini M, Galbiati V. Air Pollution: Possible Interaction between the Immune and Nervous System? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192316037. [PMID: 36498110 PMCID: PMC9738575 DOI: 10.3390/ijerph192316037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/14/2022] [Accepted: 11/26/2022] [Indexed: 06/01/2023]
Abstract
Exposure to environmental pollutants is a serious and common public health concern associated with growing morbidity and mortality worldwide, as well as economic burden. In recent years, the toxic effects associated with air pollution have been intensively studied, with a particular focus on the lung and cardiovascular system, mainly associated with particulate matter exposure. However, epidemiological and mechanistic studies suggest that air pollution can also influence skin integrity and may have a significant adverse impact on the immune and nervous system. Air pollution exposure already starts in utero before birth, potentially causing delayed chronic diseases arising later in life. There are, indeed, time windows during the life of individuals who are more susceptible to air pollution exposure, which may result in more severe outcomes. In this review paper, we provide an overview of findings that have established the effects of air pollutants on the immune and nervous system, and speculate on the possible interaction between them, based on mechanistic data.
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41
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Han Y, Wang B, Gao H, He C, Hua R, Liang C, Zhang S, Wang Y, Xin S, Xu J. Vagus Nerve and Underlying Impact on the Gut Microbiota-Brain Axis in Behavior and Neurodegenerative Diseases. J Inflamm Res 2022; 15:6213-6230. [PMID: 36386584 PMCID: PMC9656367 DOI: 10.2147/jir.s384949] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/20/2022] [Indexed: 11/10/2022] Open
Abstract
The gut microbiota is the most abundant and diverse microbiota in the human body and the vagus nerve is the most widely distributed and complex nerve in the body, both of them are essential in maintaining homeostasis. The most important phenomenon is how they coordinate to regulate functions, which has attracted the great attention of scientists. The academic literature on the correlation with a host of intestinal diseases and even systemic diseases has revealed the bidirectional communication between the gut microbiota and the brain, which can be carried out via multiple patterns. In the review, firstly, we have a general overview of the gut microbiota and the gut microbiota-brain axis. Secondly, according to the distribution characteristics of the vagus nerve, we analyzed and summarized its function in the intestinal tract. At the same time, we have summarized the underlying mechanism of some behavior changes such as depressive and anxiety-like behaviors and related neurodegenerative diseases caused by the vagus nerve and intestinal microecological environment disorders, and then we also analyzed inconsistency of the experimental evidence in order to propose novel strategies for the clinical practice.
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Affiliation(s)
- Yimin Han
- Department of Oral Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Boya Wang
- Undergraduate Student of 2018 Eight Program of Clinical Medicine, Peking University People’s Hospital, Beijing, 100083, People’s Republic of China
| | - Han Gao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Chengwei He
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Rongxuan Hua
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Chen Liang
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Sitian Zhang
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Ying Wang
- Department of Dermatology, Beijing Tong Ren Hospital, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Shuzi Xin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
| | - Jingdong Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, People’s Republic of China
- Correspondence: Jingdong Xu, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, No. 10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People’s Republic of China, Tel/Fax +86 10-8391-1469, Email
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Grozić A, Coker K, Dussik CM, Sabir MS, Sabir Z, Bradley A, Zhang L, Park J, Yale S, Kaneko I, Hockley M, Harris LA, Lunsford TN, Sandrin TR, Jurutka PW. Identification of putative transcriptomic biomarkers in irritable bowel syndrome (IBS): Differential gene expression and regulation of TPH1 and SERT by vitamin D. PLoS One 2022; 17:e0275683. [PMID: 36264926 PMCID: PMC9584396 DOI: 10.1371/journal.pone.0275683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 09/21/2022] [Indexed: 11/06/2022] Open
Abstract
Irritable bowel syndrome (IBS) is one of the most common gastrointestinal disorders and affects approximately 4% of the global population. The diagnosis of IBS can be made based on symptoms using the validated Rome criteria and ruling out commonly occurring organic diseases. Although biomarkers exist for "IBS mimickers" such as celiac disease and inflammatory bowel disease (IBD), no such test exists for IBS. DNA microarrays of colonic tissue have been used to identify disease-associated variants in other gastrointestinal (GI) disorders. In this study, our objective was to identify biomarkers and unique gene expression patterns that may define the pathological state of IBS. Mucosal tissue samples were collected from the sigmoid colon of 29 participants (11 IBS and 18 healthy controls). DNA microarray analysis was used to assess gene expression profiling. Extraction and purification of RNA were then performed and used to synthesize cDNA. Reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) was employed to identify differentially expressed genes in patients diagnosed with IBS compared to healthy, non-IBS patient-derived cDNA. Additional testing probed vitamin D-mediated regulation of select genes associated with serotonergic metabolism. DNA microarray analyses led to the identification of 858 differentially expressed genes that may characterize the IBS pathological state. After screening a series of genes using a combination of gene ontological analysis and RT-qPCR, this spectrum of potential IBS biomarkers was narrowed to 23 genes, some of which are regulated by vitamin D. Seven putative IBS biomarkers, including genes involved in serotonin metabolism, were identified. This work further supports the hypothesis that IBS pathophysiology is evident within the human transcriptome and that vitamin D modulates differential expression of genes in IBS patients. This suggests that IBS pathophysiology may also involve vitamin D deficiency and/or an irregularity in serotonin metabolism.
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Affiliation(s)
- Aleksandra Grozić
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Keaton Coker
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Christopher M. Dussik
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Marya S. Sabir
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Zhela Sabir
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Arianna Bradley
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Lin Zhang
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Jin Park
- Biodesign Institute, Arizona State University, Tempe, AZ, United States of America
| | - Steven Yale
- Department of Medicine, University of Central Florida College of Medicine, Orlando, FL, United States of America
| | - Ichiro Kaneko
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ, United States of America
| | - Maryam Hockley
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
| | - Lucinda A. Harris
- Mayo Clinic Division of Gastroenterology & Hepatology, Alix School of Medicine, Mayo Clinic, Scottsdale, AZ, United States of America
| | - Tisha N. Lunsford
- Mayo Clinic Division of Gastroenterology & Hepatology, Alix School of Medicine, Mayo Clinic, Scottsdale, AZ, United States of America
| | - Todd R. Sandrin
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
- Julie Ann Wrigley Global Futures Laboratory, Arizona State University, Tempe, AZ, United States of America
| | - Peter W. Jurutka
- School of Mathematical and Natural Sciences, Arizona State University, Phoenix, AZ, United States of America
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ, United States of America
- * E-mail:
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Wu Z, Setyawati MI, Lim HK, Ng KW, Tay CY. Nanoparticle-induced chemoresistance: the emerging modulatory effects of engineered nanomaterials on human intestinal cancer cell redox metabolic adaptation. NANOSCALE 2022; 14:14491-14507. [PMID: 36106385 DOI: 10.1039/d2nr03893e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The widespread use of engineered nanomaterials (ENMs) in food products necessitates the understanding of their impact on the gastrointestinal tract (GIT). Herein, we screened several representative food-borne comparator ENMs (i.e. ZnO, SiO2 and TiO2 nanoparticles (NPs)) and report that human colon cancer cells can insidiously exploit ZnO NP-induced adaptive response to acquire resistance against several chemotherapeutic drugs. By employing a conditioning and challenge treatment regime, we demonstrate that repeated exposure to a non-toxic dose of ZnO NPs (20 μM) could dampen the efficacy of cisplatin, paclitaxel and doxorubicin by 10-50% in monolayer culture and 3D spheroids of human colon adenocarcinoma cells. Structure-activity relationship studies revealed a complex interplay between nanoparticle surface chemistry and cell type in determining the chemoresistance-inducing effect, with silica coated ZnO NPs having a negligible influence on the anticancer treatment. Mechanistically, we showed that the pro-survival paracrine signaling was potentiated and propagated by a subset of ZnO NP "stressed" (Zn2++/ROS+) cells to the surrounding "bystander" (Zn2++/ROS-) cells. Transcriptome profiling, bioinformatics analysis and siRNA gene knockdown experiments revealed the nuclear factor erythroid 2-related factor 2 (Nrf2) as the key modulator of the ZnO NP-induced drug resistance. Our findings suggest that a ROS-inducing ENM can emerge as a nano-stressor, capable of regulating the chemosensitivity of colon cancer cells.
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Affiliation(s)
- Zhuoran Wu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Magdiel Inggrid Setyawati
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Hong Kit Lim
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- Environmental Chemistry and Materials Centre, Nanyang Environment & Water Research Institute, 1 Cleantech Loop, CleanTech One, Singapore 637141, Singapore
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Chor Yong Tay
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- Environmental Chemistry and Materials Centre, Nanyang Environment & Water Research Institute, 1 Cleantech Loop, CleanTech One, Singapore 637141, Singapore
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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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Zorena K, Jaskulak M, Michalska M, Mrugacz M, Vandenbulcke F. Air Pollution, Oxidative Stress, and the Risk of Development of Type 1 Diabetes. Antioxidants (Basel) 2022; 11:1908. [PMID: 36290631 PMCID: PMC9598917 DOI: 10.3390/antiox11101908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 11/25/2022] Open
Abstract
Despite multiple studies focusing on environmental factors conducive to the development of type 1 diabetes mellitus (T1DM), knowledge about the involvement of long-term exposure to air pollution seems insufficient. The main focus of epidemiological studies is placed on the relationship between exposure to various concentrations of particulate matter (PM): PM1, PM2.5, PM10, and sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (O3), versus the risk of T1DM development. Although the specific molecular mechanism(s) behind the link between increased air pollution exposure and a higher risk of diabetes and metabolic dysfunction is yet unknown, available data indicate air pollution-induced inflammation and oxidative stress as a significant pathway. The purpose of this paper is to assess recent research examining the association between inhalation exposure to PM and associated metals and the increasing rates of T1DM worldwide. The development of modern and more adequate methods for air quality monitoring is also introduced. A particular emphasis on microsensors, mobile and autonomous measuring platforms, satellites, and innovative approaches of IoT, 5G connections, and Block chain technologies are also presented. Reputable databases, including PubMed, Scopus, and Web of Science, were used to search for relevant literature. Eligibility criteria involved recent publication years, particularly publications within the last five years (except for papers presenting a certain novelty or mechanism for the first time). Population, toxicological and epidemiological studies that focused particularly on fine and ultra-fine PM and associated ambient metals, were preferred, as well as full-text publications.
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Affiliation(s)
- Katarzyna Zorena
- Department of Immunobiology and Environment Microbiology, Faculty of Health Sciences, Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - Marta Jaskulak
- Department of Immunobiology and Environment Microbiology, Faculty of Health Sciences, Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - Małgorzata Michalska
- Department of Immunobiology and Environment Microbiology, Faculty of Health Sciences, Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - Małgorzata Mrugacz
- Department of Ophthalmology and Eye Rehabilitation, Medical University of Bialystok, Kilinskiego 1, 15-089 Białystok, Poland
| | - Franck Vandenbulcke
- Laboratoire de Génie Civil et Géo-Environnement, Univ. Lille, IMT Lille Douai, University Artois, YncreaHauts-de-France, ULR4515-LGCgE, F-59000 Lille, France
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46
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Özsoy M, Stummer N, Zimmermann FA, Feichtinger RG, Sperl W, Weghuber D, Schneider AM. Role of Energy Metabolism and Mitochondrial Function in Inflammatory Bowel Disease. Inflamm Bowel Dis 2022; 28:1443-1450. [PMID: 35247048 DOI: 10.1093/ibd/izac024] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Indexed: 12/12/2022]
Abstract
Inflammatory bowel disease (IBD) is a chronic recurring inflammation of the intestine which can be debilitating for those with intractable disease. However, the etiopathogenesis of inflammatory bowel disorders remains to be solved. The hypothesis that mitochondrial dysfunction is a crucial factor in the disease process is being validated by an increasing number of recent studies. Thus mitochondrial alteration in conjunction with previously identified genetic predisposition, changes in the immune response, altered gut microbiota, and environmental factors (eg, diet, smoking, and lifestyle) are all posited to contribute to IBD. The implicated factors seem to affect mitochondrial function or are influenced by mitochondrial dysfunction, which explains many of the hallmarks of the disease. This review summarizes the results of studies reporting links between mitochondria and IBD that were available on PubMed through March 2021. The aim of this review is to give an overview of the current understanding of the role of mitochondria in the pathogenesis of IBD.
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Affiliation(s)
- Mihriban Özsoy
- Department of Pediatrics, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Nathalie Stummer
- Department of Pediatrics, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Franz A Zimmermann
- Department of Pediatrics, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria.,Research Program for Receptor Biochemistry and Tumor Metabolism, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - René G Feichtinger
- Department of Pediatrics, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria.,Research Program for Receptor Biochemistry and Tumor Metabolism, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Wolfgang Sperl
- Department of Pediatrics, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Daniel Weghuber
- Department of Pediatrics, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Anna M Schneider
- Department of Pediatrics, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
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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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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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50
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Singh S, Sharma P, Pal N, Kumawat M, Shubham S, Sarma DK, Tiwari RR, Kumar M, Nagpal R. Impact of Environmental Pollutants on Gut Microbiome and Mental Health via the Gut–Brain Axis. Microorganisms 2022; 10:microorganisms10071457. [PMID: 35889175 PMCID: PMC9317668 DOI: 10.3390/microorganisms10071457] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/29/2022] [Accepted: 07/05/2022] [Indexed: 02/01/2023] Open
Abstract
Over the last few years, the microbiome has emerged as a high-priority research area to discover missing links between brain health and gut dysbiosis. Emerging evidence suggests that the commensal gut microbiome is an important regulator of the gut–brain axis and plays a critical role in brain physiology. Engaging microbiome-generated metabolites such as short-chain fatty acids, the immune system, the enteric nervous system, the endocrine system (including the HPA axis), tryptophan metabolism or the vagus nerve plays a crucial role in communication between the gut microbes and the brain. Humans are exposed to a wide range of pollutants in everyday life that impact our intestinal microbiota and manipulate the bidirectional communication between the gut and the brain, resulting in predisposition to psychiatric or neurological disorders. However, the interaction between xenobiotics, microbiota and neurotoxicity has yet to be completely investigated. Although research into the precise processes of the microbiota–gut–brain axis is growing rapidly, comprehending the implications of environmental contaminants remains challenging. In these milieus, we herein discuss how various environmental pollutants such as phthalates, heavy metals, Bisphenol A and particulate matter may alter the intricate microbiota–gut–brain axis thereby impacting our neurological and overall mental health.
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Affiliation(s)
- Samradhi Singh
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
| | - Poonam Sharma
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
| | - Namrata Pal
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
| | - Manoj Kumawat
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
| | - Swasti Shubham
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
| | - Devojit Kumar Sarma
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
| | - Rajnarayan R. Tiwari
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
| | - Manoj Kumar
- National Institute for Research in Environmental Health, Bhopal 462030, India; (S.S.); (P.S.); (N.P.); (M.K.); (S.S.); (D.K.S.); (R.R.T.)
- Correspondence: (M.K.); (R.N.)
| | - Ravinder Nagpal
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32302, USA
- Correspondence: (M.K.); (R.N.)
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