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Vijayan S, Margesan T. Arthritis alleviation: unveiling the potential in Abrus precatorius macerated oil. Future Sci OA 2024; 10:FSO981. [PMID: 38817355 PMCID: PMC11137774 DOI: 10.2144/fsoa-2023-0248] [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: 10/20/2023] [Accepted: 02/23/2024] [Indexed: 06/01/2024] Open
Abstract
Aim: This study endeavors to explore the anti-arthritic effects of macerated oil derived from the plant's aerial parts. Methods: The macerated oil was prepared using maceration in coconut oil, and its phytochemical composition was elucidated using GC-MS. To assess its anti-arthritic activity, in-vitro studies were conducted using various assays. Results & conclusion: The macerated oil showed better antioxidant and anti-arthritic potential by in-vitro investigations. Molecular docking studies elucidated potential binding interactions between specific constituents of the oil and critical molecular targets implicated in the pathogenesis of arthritis, further substantiating its therapeutic potential. The results demonstrated that Abrus precatorius macerated oil could ameliorate arthritis severity in a dose-dependent manner.
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Affiliation(s)
- Sukanya Vijayan
- Department of Pharmacognosy, SRM College of Pharmacy, SRM Institute of Science & Technology, Kattankulathur, 603203, Chengalpattu, Tamil Nadu, India
| | - Thirumal Margesan
- Department of Pharmacognosy, SRM College of Pharmacy, SRM Institute of Science & Technology, Kattankulathur, 603203, Chengalpattu, Tamil Nadu, India
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Liu Y, Jiang P, Qu Y, Liu C, Zhang D, Xu B, Zhang Q. Exosomes and exosomal miRNAs: A new avenue for the future treatment of rheumatoid arthritis. Heliyon 2024; 10:e28127. [PMID: 38533025 PMCID: PMC10963384 DOI: 10.1016/j.heliyon.2024.e28127] [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: 08/28/2023] [Revised: 03/12/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024] Open
Abstract
Rheumatoid arthritis is a chronic systemic autoimmune disease that involves mainly synovitis and joint injury and is one of the main causes of disability. The pathogenesis of rheumatoid arthritis is complicated, and the treatment cycle is long. The traditional methods of inhibiting inflammation and immunosuppression are no longer sufficient for treatment of the disease, so there is an urgent need to seek new treatments. The exocrine microenvironment is a kind of microvesicle with a lipid bilayer membrane structure that can be secreted by most cells in the body. This structure contains cell-specific proteins, lipids and nucleic acids that can transmit this information from one cell to another. To achieve cell-to-cell communication. Exocrine microRNAs can be contained in exocrine cells and can be selectively transferred to target receptor cells via exocrine signaling, thus regulating the physiological function of target cells. This article focuses on the pathological changes that occur during the development of rheumatoid arthritis and the biological regulation of exocrine and exocrine microRNAs in rheumatoid joints. Research on the roles of exocrine and exocrine microRNAs in regulating the inflammatory response, cell proliferation/apoptosis, autophagy, effects on fibroblast-like synoviocytes and immune regulation in rheumatoid arthritis was reviewed. In addition, the challenges faced by this new treatment are discussed.
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Affiliation(s)
- Yuan Liu
- The First Clinical Medical College, Shandong University of Chinese Traditional Medicine, Jinan, China
| | - Ping Jiang
- The First Clinical Medical College, Shandong University of Chinese Traditional Medicine, Jinan, China
- Rheumatology and Immunology Department, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuan Qu
- The First Clinical Medical College, Shandong University of Chinese Traditional Medicine, Jinan, China
| | - Chuanguo Liu
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Di Zhang
- Rheumatology and Immunology Department, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Bing Xu
- Rheumatology and Immunology Department, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qian Zhang
- Science and Technology Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Bergstra SA, Sepriano A, Chopra A, Winchow LL, Vega-Morales D, Salomon-Escoto K, Matthijssen XME, Landewé RB. Country-level socioeconomic status relates geographical latitude to the onset of RA: a worldwide cross-sectional analysis in the METEOR registry. Ann Rheum Dis 2023; 82:1018-1024. [PMID: 37230737 DOI: 10.1136/ard-2023-224080] [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] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Age at rheumatoid arthritis (RA) onset varies by geographical latitude. We have investigated to what extent differences in patient-specific factors and country-level socioeconomic indicators explain this variability. METHODS Patients with RA from the worldwide METEOR registry were included. Bayesian multilevel structural equation models were used to study the relationship between the absolute value of (hospital) geographical latitude and age at diagnosis (as a proxy for age at RA onset). We examined to what extent this effect is mediated by individual patient characteristics and by country-specific socioeconomic indicators and disentangled whether the observed effects occurred at the patient, hospital, or country levels. RESULTS We included 37 981 patients from 93 hospitals in 17 geographically widespread countries. Mean age at diagnosis per country ranged from 39 (Iran) to 55 (Netherlands) years. Per degree increase in country latitude (between 9.9° and 55.8°), mean age at diagnosis increased by 0.23 years (95% credibility interval: 0.095 to 0.38) (reflecting >10 years difference in age at RA onset). For hospitals within a country, this latitude effect was negligible. Inclusion of patient-specific factors (eg, gender, anticitrullinated protein antibodies status) in the model augmented the main effect from 0.23 to 0.36 years. Inclusion of country-level socioeconomic indicators (eg, gross domestic product per capita) in the model almost effaced the main effect (from 0.23 to 0.051 (-0.37 to 0.38)). CONCLUSIONS Patients living closer to the equator get RA at a younger age. This latitude gradient was not explained by individual patient characteristics, but rather by countries' socioeconomic status, providing a direct link between countries' level of welfare and the clinical onset of RA.
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Affiliation(s)
- Sytske Anne Bergstra
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Alexandre Sepriano
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
- Universidade Nova de Lisboa, NOVA Medical School, Lisbon, Portugal
| | | | - Lai-Ling Winchow
- University of the Witwatersrand, Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa
| | - David Vega-Morales
- Hospital General de Zona No. 17, Instituto Mexicano del Seguro, Monterrey, Mexico
| | - Karen Salomon-Escoto
- University of Massachusetts Chan School of Medicine, UMass Memorial Health Rheumatology Center, Worcester, Massachusetts, USA
| | | | - Robert Bm Landewé
- Amsterdam Rheumatology Center, Amsterdam Medical Center, Amsterdam, The Netherlands
- Rheumatology, Zuyderland Medical Centre Heerlen, Heerlen, The Netherlands
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Guzmán-Guzmán IP, Zaragoza-García O, Gutiérrez-Pérez IA, Muñiz-Salgado JC, Navarro-Zarza JE, Parra-Rojas I. Exposure to wood smoke contributes to increase autoantibodies and the primary non-response to DMARDs in Mexican women with rheumatoid arthritis. Joint Bone Spine 2023; 90:105562. [PMID: 36933782 DOI: 10.1016/j.jbspin.2023.105562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/14/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Affiliation(s)
- Iris Paola Guzmán-Guzmán
- Faculty of Chemical-Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico.
| | - Oscar Zaragoza-García
- Faculty of Chemical-Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | | | - Julio Cesar Muñiz-Salgado
- Faculty of Chemical-Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - José Eduardo Navarro-Zarza
- Department of Rheumatology and Medical Internal. Hospital General Doctor Raymundo-Abarca-Alarcón, Chilpancingo, Guerrero, Mexico
| | - Isela Parra-Rojas
- Faculty of Chemical-Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
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Lei T, Qian H, Yang J, Hu Y. The exposure to volatile organic chemicals associates positively with rheumatoid arthritis: a cross-sectional study from the NHANES program. Front Immunol 2023; 14:1098683. [PMID: 37404817 PMCID: PMC10317299 DOI: 10.3389/fimmu.2023.1098683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 06/05/2023] [Indexed: 07/06/2023] Open
Abstract
Introduction Rheumatoid arthritis (RA) is an autoimmune disease and closely associated with both genetic and environmental factors. Volatile organic chemicals (VOC), a common environment pollutant, was associated with some autoimmune diseases, while whether VOC exposure or which VOC leads to RA is yet clarified. Methods A cross-sectional study using data from the 6 survey cycles (2005-2006, 2011-2012, 2013-2014, 2015-2016, 2017-2018, 2017-2020) of NHANES program was performed. The RA or non-arthritis status of participant was identified through a questionnaire survey. The quantile logistic regression method was used for correlation analysis between VOC metabolites (VOCs) in urine and RA. The covariates included age, gender, race, educational level, marital status, total energy intake, physical activity, smoking, hypertension, diabetes, urine creatinine, albumin and marihuana use. Results A total of 9536 participants (aged 20 to 85) with 15 VOCs, comprising 618 RA and 8918 non-arthritis participants, was finally included for analysis. Participants in the RA group showed higher VOCs in urine than that in the non-arthritis group. A positive association between 2 VOCs (AMCC: Q4: OR=2.173, 95%CI: 1.021, 4.627. 3HPMA: Q2: OR=2.286, 95%CI: 1.207 - 4.330; Q4: OR=2.663, 95%CI: 1.288 -5.508.) and RA was detected in the model 3, which was independent of all the covariates. The relative parent compounds of the two VOCs included N,N-Dimethylformamide and acrolein. Discussion These findings suggested that the VOC exposure significantly associated with RA, providing newly epidemiological evidence for the establishment that environmental pollutants associated with RA. And also, more prospective studies and related experimental studies are needed to further validate the conclusions of this study.
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Affiliation(s)
- Ting Lei
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, National Clinical Research Center of Geriatric Disorder, Xiangya Hospital, Central South University, Changsha, China
| | - Hu Qian
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Junxiao Yang
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, National Clinical Research Center of Geriatric Disorder, Xiangya Hospital, Central South University, Changsha, China
| | - Yihe Hu
- Department of Orthopedic Surgery, Hunan Engineering Research Center of Biomedical Metal and Ceramic Implants, National Clinical Research Center of Geriatric Disorder, Xiangya Hospital, Central South University, Changsha, China
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Liu R, Zhou Y, Liu Y, Guo R, Gao L. Association between living environmental quality and risk of arthritis in middle-aged and older adults: a national study in China. Front Public Health 2023; 11:1181625. [PMID: 37397775 PMCID: PMC10313337 DOI: 10.3389/fpubh.2023.1181625] [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: 03/07/2023] [Accepted: 05/26/2023] [Indexed: 07/04/2023] Open
Abstract
Background The association between combined environmental factors and the risk of arthritis is still scarcely studied. The present study performed cross-sectional and cohort studies to explore the association between risk score of living environment quality and the risk of arthritis in middle-aged and older adults in China. Methods The study was based on China Health and Retirement Longitudinal Study (CHARLS), and it recruited 17,218 participants in the cross-sectional study and 11,242 participants in the seven-year follow-up study. The living environment quality was measured by household fuel types, household water sources, room temperature, residence types, and ambient concentration of PM2.5. Logistic regression and Cox proportional hazard regression models were utilized to examine the association between the living environment quality and the risk of arthritis. Competing risk models and stratified analyses were applied to further verify our results. Results Compared with individuals in the suitable environment group, people who lived in moderate (OR:1.28, 95%CI: 1.14-1.43) and unfavorable environments (OR:1.49, 95%CI:1.31-1.70) showed higher risks of arthritis when considering the multiple living environmental factors (P for trend <0.001) in the cross-sectional analysis. In the follow-up study, similar results (P for trend = 0.021), moderate environment group (HR:1.26, 95%CI:1.01-1.56) and unfavorable environment group (HR: 1.36, 95%CI: 1.07-1.74), were founded. Conclusion Inferior living environment might promote the development of arthritis. It is necessary for the public, especially old people, to improve the living environment, which may be the key to the primary prevention of arthritis.
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Affiliation(s)
- Ri Liu
- Department of Orthopedics, The Second Hospital of Tangshan, Tangshan, Hebei, China
| | - Yuefei Zhou
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, China
| | - Yang Liu
- Department of Biostatistics and Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Run Guo
- Department of General Practice, Beijing Friendship Hospital of Capital Medical University, Beijing, China
| | - Lishu Gao
- Department of Endocrinology, Tangshan People’s Hospital, Tangshan, Hebei, China
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Zhang J, Fang XY, Wu J, Fan YG, Leng RX, Liu B, Lv XJ, Yan YL, Mao C, Ye DQ. Association of Combined Exposure to Ambient Air Pollutants, Genetic Risk, and Incident Rheumatoid Arthritis: A Prospective Cohort Study in the UK Biobank. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:37008. [PMID: 36913237 PMCID: PMC10010395 DOI: 10.1289/ehp10710] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Evidence for a potential link between air pollution and rheumatoid arthritis (RA) is inconsistent, and the modified effect of genetic susceptibility on the relationship between air pollution and RA has not been well studied. OBJECTIVE Using a general population cohort from the UK Biobank, this study aimed to investigate the associations between various air pollutants and the risk of incident RA and to further estimate the impact of combined exposure to ambient air pollutants on the risk of developing RA under the modification effect of genetic predisposition. METHODS A total of 342,973 participants with completed genotyping data and who were free of RA at baseline were included in the study. An air pollution score was constructed by summing the concentrations of each pollutant weighted by the regression coefficients with RA from single-pollutant models to assess the combined effect of air pollutants, including particulate matter (PM) with diameters ≤2.5μm (PM2.5), between 2.5 and 10μm (PM2.5-10), and ≤10μm (PM10), as well as nitrogen dioxide (NO2) and nitrogen oxides (NOx). In addition, the polygenic risk score (PRS) of RA was calculated to characterize individual genetic risk. The Cox proportional hazard model was used to estimate hazard ratios (HRs) and 95% confidence intervals (95% CIs) of associations of single air pollutant, air pollution score, or PRS with incident RA. RESULTS During a median follow-up time of 8.1 y, 2,034 incident events of RA were recorded. The HRs (95% CIs) of incident RA per interquartile range increment in PM2.5, PM2.5-10, PM10, NO2, and NOx were 1.07 (1.01, 1.13), 1.00 (0.96, 1.04), 1.01 (0.96, 1.07), 1.03 (0.98, 1.09), and 1.07 (1.02, 1.12), respectively. We also found a positive exposure-response relationship between air pollution score and RA risk (pTrend=0.000053). The HR (95% CI) of incident RA was 1.14 (1.00, 1.29) in the highest quartile group compared with the lowest quartile group of the air pollution score. Furthermore, the results of the combined effect of air pollution score and PRS on the RA risk showed that the risk of RA incidence in the highest genetic risk and air pollution score group was almost twice that of the lowest genetic risk and air pollution score group [incidence rate (IR) per 100,000 person-years: 98.46 vs. 51.19, and HR= 1.73 (95% CI: 1.39, 2.17) vs. 1 (reference)], although no statistically significant interaction between the air pollution and genetic risk for incident RA was found (pInteraction>0.05). DISCUSSION The results revealed that long-term combined exposure to ambient air pollutants might increase the risk of RA, particularly in those with high genetic risk. https://doi.org/10.1289/EHP10710.
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Affiliation(s)
- Jie Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Xin-Yu Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Jun Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Medical University, Dongguan, Guangdong, China
| | - Yin-Guang Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Rui-Xue Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Bo Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Xiao-Jie Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Yu-Lu Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
| | - Chen Mao
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Dong-Qing Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui, China
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Zhang RD, Chen C, Wang P, Fang Y, Jiang LQ, Fang X, Zhao Y, Ni J, Wang DG, Pan HF. Air pollution exposure and auto-inflammatory and autoimmune diseases of the musculoskeletal system: a review of epidemiologic and mechanistic evidence. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023:10.1007/s10653-023-01495-x. [PMID: 36735155 DOI: 10.1007/s10653-023-01495-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Auto-inflammatory and autoimmune diseases of the musculoskeletal system can be perceived as a spectrum of rheumatic diseases, with the joints and connective tissues are eroded severely that progressively develop chronic inflammation and lesion. A wide range of risk factors represented by genetic and environmental factors have been uncovered by population-based surveys and experimental studies. Lately, the exposure to air pollution has been found to be potentially involved in the mechanisms of occurrence or development of such diseases, principally manifest in oxidative stress, local and systemic inflammation, and epigenetic modifications, as well as the mitochondrial dysfunction, which has been reported to participate in the intermediate links. The lungs might serve as a starting area of air pollutants, which would cause oxidative stress-induced bronchial-associated lymphoid tissue (iBALT) to further to influence T, B cells, and the secretion of pro-inflammatory cytokines. The binding of aromatic hydrocarbon receptor (AhR) to the corresponding contaminant ligands tends to regulate the reaction of Th17 and Tregs. Furthermore, air pollution components might spur on immune and inflammatory responses by damaging mitochondria that could interact with and exacerbate oxidative stress and pro-inflammatory cytokines. In this review, we focused on the association between air pollution and typical auto-inflammatory and autoimmune diseases of the musculoskeletal system, mainly including osteoarthritis (OA), rheumatoid arthritis (RA), spondyloarthritis (SpA) and juvenile idiopathic arthritis (JIA), and aim to collate the mechanisms involved and the potential channels. A complete summary and in-depth understanding of the autoimmune and inflammatory effects of air pollution exposure should hopefully contribute new perspectives on how to formulate better public health policies to alleviate the adverse health effects of air pollutants.
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Affiliation(s)
- Ruo-Di Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Cong Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Peng Wang
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
- Teaching Center for Preventive Medicine, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Yang Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Ling-Qiong Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Xi Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Yan Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Jing Ni
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - De-Guang Wang
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
- Department of Nephrology, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China.
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China.
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Kadota H, Gono T, Kunugi S, Ota Y, Takeno M, Seike M, Shimizu A, Kuwana M. Tertiary lymphoid structures in the primary tumor site of patients with cancer-associated myositis: A case-control study. Front Med (Lausanne) 2023; 9:1066858. [PMID: 36687449 PMCID: PMC9845936 DOI: 10.3389/fmed.2022.1066858] [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: 10/11/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
Objective To investigate histologic features of immunological components in the primary tumor site of patients with cancer-associated myositis (CAM) by focusing on tumor-infiltrating lymphocytes (TILs) and tertiary lymphoid structures (TLSs), which play major roles in antitumor immunity. Methods Cancer-associated myositis patients were selected from the single-center idiopathic inflammatory myopathy cohort based on the availability of primary tumor specimens obtained before the introduction of immunomodulatory agents. Control cancer subjects without CAM were selected from the cancer tissue repository at a ratio of 1:2 matched for demographics and cancer characteristics of CAM cases. A series of immunohistochemical analyses was conducted using sequential tumor sections. TLS was defined as an ectopic lymphoid-like structure composed of DC-LAMP+ mature dendritic cells, CD23+ follicular dendritic cells (FDCs) and PNAd+ high endothelial venules. TLS distribution was classified into the tumor center, invasive margin, and peritumoral area. Results Six CAM patients and 12 matched non-CAM controls were eligible for the study. There was no apparent difference in the density or distribution of TILs between the groups. TLSs were found in 3 CAM patients (50%) and 4 non-CAM controls (33%). TLSs were exclusively located at the tumor center or invasive margin in CAM cases but were mainly found in the peritumoral area in non-CAM controls. FDCs and class-switched B cells colocalized with follicular helper T cells were abundantly found in the germinal center-like area of TLSs from CAM patients compared with those from non-CAM controls. Conclusion The adaptive immune response within TLSs in the primary tumor site might contribute to the pathogenic process of CAM.
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Affiliation(s)
- Hiroko Kadota
- Department of Allergy and Rheumatology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Takahisa Gono
- Department of Allergy and Rheumatology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan,Scleroderma/Myositis Center of Excellence, Nippon Medical School Hospital, Tokyo, Japan
| | - Shinobu Kunugi
- Department of Analytic Human Pathology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Yuko Ota
- Department of Allergy and Rheumatology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan,Scleroderma/Myositis Center of Excellence, Nippon Medical School Hospital, Tokyo, Japan
| | - Mitsuhiro Takeno
- Department of Allergy and Rheumatology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan,Department of Allergy and Rheumatology, Nippon Medical School Musashi Kosugi Hospital, Kawasaki, Japan
| | - Masahiro Seike
- Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Masataka Kuwana
- Department of Allergy and Rheumatology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan,Scleroderma/Myositis Center of Excellence, Nippon Medical School Hospital, Tokyo, Japan,*Correspondence: Masataka Kuwana,
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10
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Aghakhani S, Soliman S, Niarakis A. Metabolic reprogramming in Rheumatoid Arthritis Synovial Fibroblasts: A hybrid modeling approach. PLoS Comput Biol 2022; 18:e1010408. [PMID: 36508473 PMCID: PMC9779668 DOI: 10.1371/journal.pcbi.1010408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 12/22/2022] [Accepted: 11/11/2022] [Indexed: 12/15/2022] Open
Abstract
Rheumatoid Arthritis (RA) is an autoimmune disease characterized by a highly invasive pannus formation consisting mainly of Synovial Fibroblasts (RASFs). This pannus leads to cartilage, bone, and soft tissue destruction in the affected joint. RASFs' activation is associated with metabolic alterations resulting from dysregulation of extracellular signals' transduction and gene regulation. Deciphering the intricate mechanisms at the origin of this metabolic reprogramming may provide significant insight into RASFs' involvement in RA's pathogenesis and offer new therapeutic strategies. Qualitative and quantitative dynamic modeling can address some of these features, but hybrid models represent a real asset in their ability to span multiple layers of biological machinery. This work presents the first hybrid RASF model: the combination of a cell-specific qualitative regulatory network with a global metabolic network. The automated framework for hybrid modeling exploits the regulatory network's trap-spaces as additional constraints on the metabolic network. Subsequent flux balance analysis allows assessment of RASFs' regulatory outcomes' impact on their metabolic flux distribution. The hybrid RASF model reproduces the experimentally observed metabolic reprogramming induced by signaling and gene regulation in RASFs. Simulations also enable further hypotheses on the potential reverse Warburg effect in RA. RASFs may undergo metabolic reprogramming to turn into "metabolic factories", producing high levels of energy-rich fuels and nutrients for neighboring demanding cells through the crucial role of HIF1.
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Affiliation(s)
- Sahar Aghakhani
- GenHotel–Laboratoire Européen de Recherche pour la Polyarthrite Rhumatoïde, Univ. Evry, Univ. Paris-Saclay, Evry, France
- Lifeware Group, Inria Saclay Île-de-France, Palaiseau, France
| | - Sylvain Soliman
- Lifeware Group, Inria Saclay Île-de-France, Palaiseau, France
| | - Anna Niarakis
- GenHotel–Laboratoire Européen de Recherche pour la Polyarthrite Rhumatoïde, Univ. Evry, Univ. Paris-Saclay, Evry, France
- Lifeware Group, Inria Saclay Île-de-France, Palaiseau, France
- * E-mail:
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11
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Biton J, Saidenberg-Kermanac'h N, Decker P, Boissier MC, Semerano L, Sigaux J. The exposome in rheumatoid arthritis. Joint Bone Spine 2022; 89:105455. [PMID: 35964886 DOI: 10.1016/j.jbspin.2022.105455] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/08/2022] [Accepted: 07/25/2022] [Indexed: 10/16/2022]
Abstract
The exposome integrates the variety and accumulation of exposures (external and internal) to which an individual is submitted to from conception to death. Exposome may therefore be a useful tool for understanding the diversity of these factors and their role in the pathophysiology of rheumatoid arthritis (RA). Life is perceived as a continuum of cumulative changes, with key periods of disruption (e.g. birth, adolescence, pregnancy, prolonged treatment). The combination of these changes and the external signals that cause them constitute an individual's exposome, which is constantly changing and expanding throughout life. Thus, measuring the exposome requires specific tools and approaches as well as a global perspective. RA, a complex, heterogeneous, pro-inflammatory autoimmune disease with a genetic component and for which a large number of environmental factors have already been incriminated is an appropriate field of application for the exposome. The aim of this review is to define the exposome concept, outline the different analytic tools available for its study and finally apply them to the field of RA.
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Affiliation(s)
- Jerome Biton
- Inserm U1125, Bobigny, France; Université Sorbonne Paris Nord, UFR SMBH, Li2P, Bobigny, France
| | | | - Patrice Decker
- Inserm U1125, Bobigny, France; Université Sorbonne Paris Nord, UFR SMBH, Li2P, Bobigny, France
| | - Marie-Christophe Boissier
- Inserm U1125, Bobigny, France; Université Sorbonne Paris Nord, UFR SMBH, Li2P, Bobigny, France; Rheumatology department, Avicenne university hospital, Assistance publique-Hôpitaux de Paris, Bobigny, France
| | - Luca Semerano
- Inserm U1125, Bobigny, France; Université Sorbonne Paris Nord, UFR SMBH, Li2P, Bobigny, France; Rheumatology department, Avicenne university hospital, Assistance publique-Hôpitaux de Paris, Bobigny, France
| | - Johanna Sigaux
- Inserm U1125, Bobigny, France; Université Sorbonne Paris Nord, UFR SMBH, Li2P, Bobigny, France; Rheumatology department, Avicenne university hospital, Assistance publique-Hôpitaux de Paris, Bobigny, France.
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12
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Venetsanopoulou AI, Alamanos Y, Voulgari PV, Drosos AA. Epidemiology of rheumatoid arthritis: genetic and environmental influences. Expert Rev Clin Immunol 2022; 18:923-931. [PMID: 35904251 DOI: 10.1080/1744666x.2022.2106970] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Rheumatoid arthritis (RA) is a chronic systemic disease characterized by articular involvement and extra-articular manifestations. The incidence and prevalence of the disease vary across populations, and there is an ongoing debate on whether a change of RA occurrence over time exists or is due to methodological issues and other biases. Moreover, the disease's onset is related to an interaction of genetic and environmental factors that influence its expression. AREAS COVERED This review explores the latest knowledge on RA epidemiology and the possible risk factors associated with its presentation to identify potential warning signs that may in the future help disease management. EXPERT OPINION Current epidemiological evidence suggests a significant impact of smoking, sex hormones, and lifestyle status in RA occurrence. However, the association between these variables has not yet been thoroughly studied. Still, their effect must be interpreted as they may present subsequently integral indicators for a more rational approach of the disease.
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Affiliation(s)
- Aliki I Venetsanopoulou
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
| | - Yannis Alamanos
- Institute of Epidemiology, Preventive Medicine and Public Health, Corfu, Greece
| | - Paraskevi V Voulgari
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
| | - Alexandros A Drosos
- Rheumatology Clinic, Department of Internal Medicine, Medical School, University of Ioannina, Ioannina, Greece
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13
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Ho WC, Chou LW, Wang RY, Doan TN, Yu HL, Chou TH, Liu KY, Wu PC, Shieh SH. Association between Exposure to Ambient Air Pollution and the Risk of Rheumatoid Arthritis in Taiwan: A Population-Based Retrospective Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127006. [PMID: 35742255 PMCID: PMC9222243 DOI: 10.3390/ijerph19127006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/06/2022] [Accepted: 06/06/2022] [Indexed: 02/01/2023]
Abstract
Background: The association between ambient air pollution (AAP) and the risk of Rheumatoid arthritis (RA) remains debatable. We conducted a population-based cohort study to investigate the association between exposure to AAP and the risk of RA in Taiwan. Methods: We analyzed and combined the longitudinal Health Insurance Database (LHID) and the Taiwan Air Quality-Monitoring Database (TAQMD), which were in line with the residential areas. We calculated the RA incidence rates per 10,000 person-years exposed to each quartile of PM2.5 or PM10 concentrations or RH. Hazards regression was conducted to analyze the associations between exposure to each quartile of PM2.5 and PM10 concentrations and the risk of developing RA. The hazard ratios of RA were analyzed between participants exposed to annual average concentrations of PM2.5 and PM10. All the hazard ratios of RA were stratified by gender and adjusted for age and relative humidity (RH). A p-value < 0.05 was considered statistically significant. Results: Among 722,885 subjects, 9338 RA cases were observed. The analyses adjusted for age, gender, and humidity suggested an increased risk of developing RA in the exposure to PM2.5 in the last quartile (Q4) with the adjusted hazard ratio (aHR) was 1.053 (95%CI: 1.043 to 1.063). Conclusion: Our study suggests that exposure to PM2.5 is associated with an increased risk of RA. The finding has implications for policymaking to develop coping strategies to confront AAP as a risk factor for RA.
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Affiliation(s)
- Wen-Chao Ho
- Department of Public Health, College of Public Health, China Medical University, Taichung 406040, Taiwan; (W.-C.H.); (R.-Y.W.); (T.-N.D.); (T.-H.C.); (K.-Y.L.)
| | - Li-Wei Chou
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung 404332, Taiwan;
- Department of Physical Medicine and Rehabilitation, Asia University Hospital, Asia University, Taichung 41354, Taiwan
- Department of Physical Therapy and Graduate Institute of Rehabilitation Science, China Medical University, Taichung 406040, Taiwan
| | - Ruey-Yun Wang
- Department of Public Health, College of Public Health, China Medical University, Taichung 406040, Taiwan; (W.-C.H.); (R.-Y.W.); (T.-N.D.); (T.-H.C.); (K.-Y.L.)
| | - Thanh-Nhan Doan
- Department of Public Health, College of Public Health, China Medical University, Taichung 406040, Taiwan; (W.-C.H.); (R.-Y.W.); (T.-N.D.); (T.-H.C.); (K.-Y.L.)
- Department of Rehabilitation, Quang Nam Northern Mountainous Region General Hospital, Quang Nam 560000, Vietnam
| | - Hwa-Lung Yu
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 10617, Taiwan;
| | - Ting-Hsuan Chou
- Department of Public Health, College of Public Health, China Medical University, Taichung 406040, Taiwan; (W.-C.H.); (R.-Y.W.); (T.-N.D.); (T.-H.C.); (K.-Y.L.)
| | - Kang-Yung Liu
- Department of Public Health, College of Public Health, China Medical University, Taichung 406040, Taiwan; (W.-C.H.); (R.-Y.W.); (T.-N.D.); (T.-H.C.); (K.-Y.L.)
| | - Po-Chang Wu
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung 40402, Taiwan
- Rong Hsing Research Center For Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan
- Rheumatology and Immunology Center, China Medical University Hospital, Taichung 404332, Taiwan
- Correspondence: (P.-C.W.); (S.-H.S.)
| | - Shwn-Huey Shieh
- Department of Health Services Administration, College of Public Health, China Medical University, Taichung 406040, Taiwan
- Department of Nursing, Asia University, Taichung 41354, Taiwan
- Correspondence: (P.-C.W.); (S.-H.S.)
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14
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Raqib R, Akhtar E, Sultana T, Ahmed S, Chowdhury MAH, Shahriar MH, Kader SB, Eunus M, Haq MA, Sarwar G, Islam T, Alam DS, Parvez F, Begum BA, Ahsan H, Yunus M. Association of household air pollution with cellular and humoral immune responses among women in rural Bangladesh. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 299:118892. [PMID: 35077836 PMCID: PMC9850293 DOI: 10.1016/j.envpol.2022.118892] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/29/2021] [Accepted: 01/20/2022] [Indexed: 05/29/2023]
Abstract
Household air pollution (HAP) arising from combustion of biomass fuel (BMF) is a leading cause of morbidity and mortality in low-income countries. Air pollution may stimulate pro-inflammatory responses by activating diverse immune cells and cyto/chemokine expression, thereby contributing to diseases. We aimed to study cellular immune responses among women chronically exposed to HAP through use of BMF for domestic cooking. Among 200 healthy, non-smoking women in rural Bangladesh, we assessed exposure to HAP by measuring particulate matter 2.5 (PM2.5), black carbon (BC) and carbon monoxide (CO), through use of personal monitors RTI MicroPEM™ and Lascar CO logger respectively, for 48 h. Blood samples were collected following HAP exposure assessment and were analyzed for immunoprofiling by flow cytometry, plasma IgE by immunoassay analyzer and cyto/chemokine response from monocyte-derived-macrophages (MDM) and -dendritic cells (MDDC) by multiplex immunoassay. In multivariate linear regression model, a doubling of PM2.5 was associated with small increments in immature/early B cells (CD19+CD38+) and plasmablasts (CD19+CD38+CD27+). In contrast, a doubling of CO was associated with 1.20% reduction in CD19+ B lymphocytes (95% confidence interval (CI) = -2.36, -0.01). A doubling of PM2.5 and BC each was associated with 3.12% (95%CI = -5.85, -0.38) and 4.07% (95%CI = -7.96, -0.17) decrements in memory B cells (CD19+CD27+), respectively. Exposure to CO was associated with increased plasma IgE levels (beta(β) = 240.4, 95%CI = 3.06, 477.8). PM2.5 and CO exposure was associated with increased MDM production of CXCL10 (β = 12287, 95%CI = 1038, 23536) and CCL5 (β = 835.7, 95%CI = 95.5, 1576), respectively. Conversely, BC exposure was associated with reduction in MDDC-produced CCL5 (β = -3583, 95%CI = -6358, -807.8) and TNF-α (β = -15521, 95%CI = -28968, -2074). Our findings suggest that chronic HAP exposure through BMF use adversely affects proportions of B lymphocytes, particularly memory B cells, plasma IgE levels and functions of antigen presenting cells in rural women.
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Affiliation(s)
| | - Evana Akhtar
- Infectious Diseases Division, icddr,b, Bangladesh
| | | | - Shyfuddin Ahmed
- Health Systems and Population Studies Division, icddr,b, Dhaka, 1212, Bangladesh
| | | | | | - Shirmin Bintay Kader
- Health Systems and Population Studies Division, icddr,b, Dhaka, 1212, Bangladesh
| | - Mahbbul Eunus
- U-Chicago Research Bangladesh, Mohakhali, Dhaka, Bangladesh
| | | | - Golam Sarwar
- U-Chicago Research Bangladesh, Mohakhali, Dhaka, Bangladesh
| | - Tariqul Islam
- U-Chicago Research Bangladesh, Mohakhali, Dhaka, Bangladesh
| | | | - Faruque Parvez
- Mailman School of Public Health, Columbia University, New York, USA
| | | | - Habibul Ahsan
- Department of Public Health Sciences, University of Chicago, Chicago, USA
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15
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Adami G, Pontalti M, Cattani G, Rossini M, Viapiana O, Orsolini G, Benini C, Bertoldo E, Fracassi E, Gatti D, Fassio A. Association between long-term exposure to air pollution and immune-mediated diseases: a population-based cohort study. RMD Open 2022; 8:rmdopen-2021-002055. [PMID: 35292563 PMCID: PMC8969049 DOI: 10.1136/rmdopen-2021-002055] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/15/2022] [Indexed: 12/18/2022] Open
Abstract
Objective Environmental air pollution has been associated with disruption of the immune system at a molecular level. The primary aim of the present study was to describe the association between long-term exposure to air pollution and risk of developing immune-mediated conditions. Methods We conducted a retrospective observational study on a nationwide dataset of women and men. Diagnoses of various immune-mediated diseases (IMIDs) were retrieved. Data on the monitoring of particulate matter (PM)10 and PM2.5 concentrations were retrieved from the Italian Institute of Environmental Protection and Research. Generalised linear models were employed to determine the relationship between autoimmune diseases prevalence and PM. Results 81 363 subjects were included in the study. We found a positive association between PM10 and the risk of autoimmune diseases (ρ+0.007, p 0.014). Every 10 µg/m3 increase in PM10 concentration was associated with an incremental 7% risk of having autoimmune disease. Exposure to PM10 above 30 µg/m3 and PM2.5 above 20 µg/m3 was associated with a 12% and 13% higher risk of autoimmune disease, respectively (adjusted OR (aOR) 1.12, 95% CI 1.05 to 1.20, and aOR 1.13, 95% CI 1.06 to 1.20). Exposure to PM10 was associated with an increased risk of rheumatoid arthritis; exposure to PM2.5 was associated with an increased risk of rheumatoid arthritis, connective tissue diseases (CTDs) and inflammatory bowel diseases (IBD). Conclusion Long-term exposure to air pollution was associated with higher risk of developing autoimmune diseases, in particular rheumatoid arthritis, CTDs and IBD. Chronic exposure to levels above the threshold for human protection was associated with a 10% higher risk of developing IMIDs.
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Affiliation(s)
- Giovanni Adami
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Marco Pontalti
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Giorgio Cattani
- Italian Institute for Environmental Protection and Research, Rome, Italy
| | - Maurizio Rossini
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Ombretta Viapiana
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Giovanni Orsolini
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Camilla Benini
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Eugenia Bertoldo
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Elena Fracassi
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Davide Gatti
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
| | - Angelo Fassio
- Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy
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16
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Heluany CS, Scharf P, Schneider AH, Donate PB, Dos Reis Pedreira Filho W, de Oliveira TF, Cunha FQ, Farsky SHP. Toxic mechanisms of cigarette smoke and heat-not-burn tobacco vapor inhalation on rheumatoid arthritis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:151097. [PMID: 34695477 DOI: 10.1016/j.scitotenv.2021.151097] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/24/2021] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
Tobacco combustion exposure worsens rheumatoid arthritis (RA). Non-combustible tobacco devices, as heat-not-burn tobacco (HNBT), are emerging as harm reduction to smokers by releasing nicotine and lower combustible tobacco products. Nevertheless, HNBT toxicity remains unclear. Hence, here we investigated the impacts of the tobacco combustible product (cigarette smoke; CS) or HNBT vapor exposures on antigen-induced arthritis (AIA) in C57BL/6 mice. Animals were exposed to airflow, HNBT vapor, or CS during 1 h/twice a day, under the Health Canada Intense (HCI) smoking regime, between days 14 to 20 after the first immunization. At day 21, 16 h after the last exposures, mice were i.a. challenged and the AIA effects were evaluated 24 h later. CS- or HNBT-exposed mice presented equivalent blood nicotine levels. CS exposure worsened articular symptoms, pulmonary inflammation, and expression of lung metallothioneins. Nevertheless, CS or HNBT exposures reduced lymphoid organs' cellularity, splenocyte proliferation and IL-2 secretion. Additional in vitro CS or HNBT exposures confirmed the harmful effects on splenocytes, which were partially mediated by the activation of nicotine/α7nAchR pathway. Associated, data demonstrate the toxic mechanisms of CS or HNBT inhalation at HCI regime on RA, and highlight that further investigations are fundamental to assure the toxicity of emerging tobacco products on the immune system during specific challenges.
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Affiliation(s)
- Cintia Scucuglia Heluany
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Pablo Scharf
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | | | - Paula Barbim Donate
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Brazil
| | | | - Tiago Franco de Oliveira
- Department of Pharmacosciences, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | - Fernando Queiroz Cunha
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Brazil
| | - Sandra Helena Poliselli Farsky
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil.
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17
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Zhou X, Dai H, Jiang H, Rui H, Liu W, Dong Z, Zhang N, Zhao Q, Feng Z, Hu Y, Hou F, Zheng Y, Liu B. MicroRNAs: Potential mediators between particulate matter 2.5 and Th17/Treg immune disorder in primary membranous nephropathy. Front Pharmacol 2022; 13:968256. [PMID: 36210816 PMCID: PMC9532747 DOI: 10.3389/fphar.2022.968256] [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: 06/13/2022] [Accepted: 08/29/2022] [Indexed: 11/19/2022] Open
Abstract
Primary membranous nephropathy (PMN), is an autoimmune glomerular disease and the main reason of nephrotic syndrome in adults. Studies have confirmed that the incidence of PMN increases yearly and is related to fine air pollutants particulate matter 2.5 (PM2.5) exposure. These imply that PM2.5 may be associated with exposure to PMN-specific autoantigens, such as the M-type receptor for secretory phospholipase A2 (PLA2R1). Emerging evidence indicates that Th17/Treg turns to imbalance under PM2.5 exposure, but the molecular mechanism of this process in PMN has not been elucidated. As an important indicator of immune activity in multiple diseases, Th17/Treg immune balance is sensitive to antigens and cellular microenvironment changes. These immune pathways play an essential role in the disease progression of PMN. Also, microRNAs (miRNAs) are susceptible to external environmental stimulation and play link role between the environment and immunity. The contribution of PM2.5 to PMN may induce Th17/Treg imbalance through miRNAs and then produce epigenetic affection. We summarize the pathways by which PM2.5 interferes with Th17/Treg immune balance and attempt to explore the intermediary roles of miRNAs, with a particular focus on the changes in PMN. Meanwhile, the mechanism of PM2.5 promoting PLA2R1 exposure is discussed. This review aims to clarify the potential mechanism of PM2.5 on the pathogenesis and progression of PMN and provide new insights for the prevention and treatment of the disease.
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Affiliation(s)
- Xiaoshan Zhou
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Haoran Dai
- Shunyi Branch, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| | - Hanxue Jiang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Hongliang Rui
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Beijing Institute of Chinese Medicine, Beijing, China
| | - Wenbin Liu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Zhaocheng Dong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Na Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Qihan Zhao
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Zhendong Feng
- Pinggu Hospital, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| | - Yuehong Hu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Fanyu Hou
- School of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Yang Zheng
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Baoli Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Shunyi Branch, Beijing Hospital of Traditional Chinese Medicine, Beijing, China
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18
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Hansen N, Juhl AL, Grenzer IM, Teegen B, Wiltfang J, Fitzner D. City Environment and Occurrence of Neural Autoantibodies in Psychiatric Patients. Front Psychiatry 2022; 13:937620. [PMID: 35873232 PMCID: PMC9301251 DOI: 10.3389/fpsyt.2022.937620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND City living might lead to a higher risk of psychiatric disease, but to date there is no evidence of any correlation between an urban environment and the occurrence of neural autoantibodies in psychiatric disease. Our aim is to identify whether the number of patients with and without neural autoantibodies living in diverse rural and urban environments differ. METHODS We enrolled retrospectively a cohort of 167 psychiatric patients via a cross-sectional design from the Department of Psychiatry and Psychotherapy University Medical Center Göttingen and determined serum and/or CSF neural autoantibodies in them. The patients live in the German states of Lower Saxony, Thuringia, and Hessen. Their data were investigated in conjunction with the location of their primary residence. We categorized them into five different categories depending upon their primary residence: one rural and four different urban environments depending on their population numbers. RESULTS We identified 36 psychiatric patients with neural autoantibodies, and 131 psychiatric patients with none. In total, 24 psychiatric patients with neural autoantibodies were classified as sharing a possible, probable, or definitive autoimmune origin according to our recently set criteria. We observed as a non-significant trend that more psychiatric patients with neural autoantibodies and a probable or definitive autoimmune origin (45.8%) live in a major city with over 100,000 inhabitants than do psychiatric patients presenting no evidence of autoantibodies (26.4%). However, we identified no relevant differences between (1) psychiatric patients with and without neural autoantibodies or between (2) psychiatric patients with a possible, probable, or definitive autoimmune origin and those without such autoantibodies in relation to the diverse rural and urban environmental settings. CONCLUSION The inherently different aspects of rural and urban environments do not appear to be relevant in determining the frequency of neural autoantibodies in psychiatric patients in Lower Saxony, Thuringia, and Hessen in Germany. Furthermore, large-scale studies involving other states across Germany should be conducted to exclude any regional differences and to examine the tendency of a higher frequency in large cities of autoimmune-mediated psychiatric syndromes.
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Affiliation(s)
- Niels Hansen
- Department of Psychiatry and Psychotherapy, University of Göttingen, Göttingen, Germany.,Translational Psychoneuroscience, University of Göttingen, Göttingen, Germany
| | - Aaron Levin Juhl
- Department of Psychiatry and Psychotherapy, University of Göttingen, Göttingen, Germany.,Translational Psychoneuroscience, University of Göttingen, Göttingen, Germany
| | - Insa Maria Grenzer
- Department of Psychiatry and Psychotherapy, University of Göttingen, Göttingen, Germany.,Translational Psychoneuroscience, University of Göttingen, Göttingen, Germany
| | | | - Jens Wiltfang
- Department of Psychiatry and Psychotherapy, University of Göttingen, Göttingen, Germany.,German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany.,Department of Medical Sciences, Neurosciences and Signaling Group, Institute of Biomedicine, University of Aveiro, Aveiro, Portugal
| | - Dirk Fitzner
- Department of Neurology, University Medical Center Göttingen, Göttingen, Germany
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19
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Park JS, Choi S, Kim K, Chang J, Kim SM, Kim SR, Lee G, Son JS, Kim KH, Lee EY, Park SM. Association of particulate matter with autoimmune rheumatic diseases among adults in South Korea. Rheumatology (Oxford) 2021; 60:5117-5126. [PMID: 33560298 PMCID: PMC8566218 DOI: 10.1093/rheumatology/keab127] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/18/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The primary objective of this study was to investigate adverse effects of ambient particulate matter of various sizes on the incidence of the prevalent autoimmune rheumatic diseases (AIRDs): RA, AS and SLE. METHODS We investigated 230 034 participants in three metropolitan cities of South Korea from the National Health Insurance Service-National Sample Cohort (NHIS-NSC). Starting from January 2010, subjects were followed up until the first event of prevalent AIRDs, death, or December 2013. The 2008-2009 respective averages of particulate matter2.5 (<2.5 μm) and particulate mattercoarse (2.5 μm to 10 μm) were linked with participants' administrative district codes. Adjusted hazard ratios (aHRs) and 95% CIs were estimated using Cox regression analysis in one- and two-pollutant models. RESULTS Adjusted for age, sex, region, and household income, in the two-pollutant model, RA incidence was positively associated with the 10 μg/m³ increment of particulate matter2.5 (aHR = 1.74, 95% CI: 1.06, 2.86), but not with particulate mattercoarse (aHR = 1.27, 95% CI: 0.87, 1.85). In the one-pollutant model, the elevated incidence rate of RA was slightly attenuated (particulate matter2.5 aHR = 1.61, 95% CI: 0.99, 2.61; particulate mattercoarse aHR = 1.13, 95% CI: 0.80, 1.61), with marginal statistical significance for particulate matter2.5. The RA incidence was also higher in the 4th quartile group of particulate matter2.5 compared with the first quartile group (aHR = 1.83, 95% CI: 1.07, 3.11). Adverse effects from particulate matter were not found for AS or SLE in either the one- or two-pollutant models. CONCLUSION The important components of particulate matter10 associated with RA incidence were the fine fractions (particulate matter2.5); no positive association was found between particulate matter and AS or SLE.
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Affiliation(s)
- Jun Seok Park
- College of Medicine, Seoul National University Hospital
| | - Seulggie Choi
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul
| | - Kyuwoong Kim
- Division of Cancer Control and Policy, National Cancer Control Institute, National Cancer Center, Goyang
| | - Jooyoung Chang
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul
| | - Sung Min Kim
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul
| | - Seong Rae Kim
- College of Medicine, Seoul National University Hospital
| | - Gyeongsil Lee
- Department of Family Medicine, Seoul National University Hospital
| | - Joung Sik Son
- Department of Family Medicine, Seoul National University Hospital
| | - Kyae Hyung Kim
- Department of Family Medicine, Seoul National University Hospital
| | - Eun Young Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Sang Min Park
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul.,Department of Family Medicine, Seoul National University Hospital
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Tang C, Li QR, Mao YM, Xia YR, Guo HS, Wang JP, Shuai ZW, Ye DQ. Association between ambient air pollution and multiple sclerosis: a systemic review and meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:58142-58153. [PMID: 34109523 DOI: 10.1007/s11356-021-14577-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Recently, increasing attention has been paid to the effects of air pollutants on autoimmune diseases. The results of relationship between ambient air pollution and multiple sclerosis (MS) showed a variety of differences. Thus, the purpose of this study is to further clarify and quantify the relationship between ambient air pollutants and MS through meta-analysis. Through electronic literature search, literature related to our research topic was collected in Cochrane Library, Embase, and PubMed till August 18, 2020, according to certain criteria. Pooled risk estimate and 95% confidence intervals (95%CI) were calculated by random-effect model analysis. After removing copies, browsing titles and abstracts, and reading full text, 6 studies were finally included. The results showed that only particulate matter (PM) with aerodynamic diameter ≤ 10 (PM10) was related to MS (pooled HR = 1.058, 95% CI = 1.050-1.066), and no correlation was found between PM with aerodynamic diameter < 2.5 (PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), ozone (O3), benzene (C6H6), major road < 50 m, and MS. There was no publication bias, and the heterogeneity analysis results were stable. PM10 is correlated with the disease MS, while other pollution is not connected with MS. Therefore, it is important for MS patients to take personal protection against particulate pollution and avoid exposure to higher levels of PM.
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Affiliation(s)
- Chao Tang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Laboratory of Inflammation and Immune Mediated Diseases, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Qing-Ru Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Laboratory of Inflammation and Immune Mediated Diseases, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Yan-Mei Mao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Laboratory of Inflammation and Immune Mediated Diseases, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Yuan-Rui Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Laboratory of Inflammation and Immune Mediated Diseases, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Heng-Sheng Guo
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Laboratory of Inflammation and Immune Mediated Diseases, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Jun-Ping Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Laboratory of Inflammation and Immune Mediated Diseases, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Zong-Wen Shuai
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, China.
| | - Dong-Qing Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Province Laboratory of Inflammation and Immune Mediated Diseases, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China.
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Pang KL, Ekeuku SO, Chin KY. Particulate Air Pollution and Osteoporosis: A Systematic Review. Risk Manag Healthc Policy 2021; 14:2715-2732. [PMID: 34194253 PMCID: PMC8238075 DOI: 10.2147/rmhp.s316429] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/03/2021] [Indexed: 11/23/2022] Open
Abstract
Air pollution is associated with inflammation and oxidative stress, which predispose to several chronic diseases in human. Emerging evidence suggests that the severity and progression of osteoporosis are directly associated with inflammation induced by air pollutants like particulate matter (PM). This systematic review examined the relationship between PM and bone health or fractures. A comprehensive literature search was conducted from January until February 2021 using the PubMed, Scopus, Web of Science, Google Scholar and Cochrane Library databases. Human cross-sectional, cohort and case-control studies were considered. Of the 1500 papers identified, 14 articles were included based on the inclusion and exclusion criteria. The air pollution index investigated by most studies were PM2.5 and PM10. Current studies demonstrated inconsistent associations between PM and osteoporosis risk or fractures, which may partly due to the heterogeneity in subjects' characteristics, study design and analysis. In conclusion, there is an inconclusive relationship between osteoporosis risk and fracture and PM exposures which require further validation.
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Affiliation(s)
- Kok-Lun Pang
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Sophia Ogechi Ekeuku
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000, Kuala Lumpur, Malaysia
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Wilson A, Velasco CA, Herbert GW, Lucas SN, Sanchez BN, Cerrato JM, Spilde M, Li QZ, Campen MJ, Zychowski KE. Mine-site derived particulate matter exposure exacerbates neurological and pulmonary inflammatory outcomes in an autoimmune mouse model. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2021; 84:503-517. [PMID: 33682625 PMCID: PMC8052313 DOI: 10.1080/15287394.2021.1891488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The Southwestern United States has a legacy of industrial mining due to the presence of rich mineral ore deposits. The relationship between environmental inhaled particulate matter (PM) exposures and neurological outcomes within an autoimmune context is understudied. The aim of this study was to compare two regionally-relevant dusts from high-priority abandoned mine-sites, Claim 28 PM, from Blue Gap Tachee, AZ and St. Anthony mine PM, from the Pueblo of Laguna, NM and to expose autoimmune-prone mice (NZBWF1/J). Mice were randomly assigned to one of three groups (n = 8/group): DM (dispersion media, control), Claim 28 PM, or St. Anthony PM, subjected to oropharyngeal aspiration of (100 µg/50 µl), once per week for a total of 4 consecutive doses. A battery of immunological and neurological endpoints was assessed at 24 weeks of age including: bronchoalveolar lavage cell counts, lung gene expression, brain immunohistochemistry, behavioral tasks and serum autoimmune biomarkers. Bronchoalveolar lavage results demonstrated a significant increase in number of polymorphonuclear neutrophils following Claim 28 and St. Anthony mine PM aspiration. Lung mRNA expression showed significant upregulation in CCL-2 and IL-1ß following St. Anthony mine PM aspiration. In addition, neuroinflammation was present in both Claim 28 and St. Anthony mine-site derived PM exposure groups. Behavioral tasks resulted in significant deficits as determined by Y-maze new arm frequency following Claim 28 aspiration. Neutrophil elastase was significantly upregulated in the St. Anthony mine exposure group. Interestingly, there were no significant changes in serum autoantigens suggesting systemic inflammatory effects may be mediated through other molecular mechanisms following low-dose PM exposures.
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Affiliation(s)
- Alexis Wilson
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico 87131
| | - Carmen A. Velasco
- Department of Civil, Construction & Environmental Engineering, University of New Mexico, Albuquerque, New Mexico 87131
- Department of Chemical Engineering, Universidad Central del Ecuador, Ritter s/n & Bolivia, Quito 17-01-3972, Ecuador
| | - Guy W. Herbert
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico 87131
| | - Selita N. Lucas
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico 87131
| | - Bethany N. Sanchez
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico 87131
| | - José M. Cerrato
- Department of Civil, Construction & Environmental Engineering, University of New Mexico, Albuquerque, New Mexico 87131
| | - Michael Spilde
- Department of Earth and Planetary Sciences, University of New Mexico, MSC03 2040, Albuquerque, New Mexico 87131
| | - Quan-Zhen Li
- Department of Immunology and Microarray Core, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Matthew J. Campen
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico 87131
| | - Katherine E. Zychowski
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico 87131
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Deng Y, Gao Q, Yang T, Wu B, Liu Y, Liu R. Indoor solid fuel use and incident arthritis among middle-aged and older adults in rural China: A nationwide population-based cohort study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 772:145395. [PMID: 33578144 DOI: 10.1016/j.scitotenv.2021.145395] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/08/2021] [Accepted: 01/19/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND Many households in developing countries, including China, rely on the traditional use of solid fuels for cooking and heating. Arthritis is highly prevalent in middle-aged and older adults and is a major cause of disability. However, evidence linking indoor solid fuel use with arthritis is scarce in this age group (≥45 years) in developing countries. OBJECTIVES To investigate whether exposure to indoor solid fuel for cooking and heating is associated with arthritis in middle-aged and older adults in rural China. METHODS Data for the present study were extracted from the China Health and Retirement Longitudinal Study (CHARLS), a longitudinal national prospective study of adults aged 45 years and older enrolled in 2010 and followed up through 2015. We included 7807 rural participants without arthritis at baseline, of whom 1548 living in a central heating area in winter were included in the heating analysis (taking the Qinling-Huaihe line as the heating boundary). Cox proportional hazards models were used to examine the association between indoor solid fuel use and arthritis, controlling for age, sex, education, marital status, smoking status, drinking status, self-reported socioeconomic status, BMI, sleep time, napping time, independent cooking, hypertension, diabetes, dyslipidemia, heart problems and stroke. We also investigated the effect of switching primary fuels and using solid fuels for both cooking and heating on arthritis risk. RESULTS The mean (SD) age of the study participants was 59.2 (10.0) years old, and 48.0% of participants were women. A total of 64.8% and 63.0% of the participants reported primarily using solid fuel for cooking and heating, respectively. Arthritis incidence rates were lower among clean fuel users than solid fuel users. Compared to those using clean fuels, cooking and heating solid fuel users had a higher risk of arthritis, with hazard ratios (HRs) of 1.22 (95% confidence interval (CI): 1.01, 1.49) and 1.76 (95% CI: 1.07, 2.89), respectively. Switching from clean fuels to solid fuels for heating (HR: 3.28, 95% CI: 1.21, 7.91) and using solid fuels for both cooking and heating (HR, 1.71, 95% CI, 1.01-2.79) increased the risk of arthritis. CONCLUSIONS Long-term solid fuel use for indoor cooking and heating is associated with an increased risk of arthritis events among adults aged 45 years and older in rural China. The potential benefits of reducing indoor solid fuel use in groups at high risk for arthritis merit further exploration.
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Affiliation(s)
- Yan Deng
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Qian Gao
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Tianyao Yang
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Bo Wu
- Department of Anal and Rectal Diseases, First Hospital, China Medical University, Shenyang 110001, China
| | - Yang Liu
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Ruxi Liu
- Department of Immunology and Rheumatology, First Hospital, China Medical University, Shenyang 110001, China.
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Hydroquinone Exposure Worsens Rheumatoid Arthritis through the Activation of the Aryl Hydrocarbon Receptor and Interleukin-17 Pathways. Antioxidants (Basel) 2021; 10:antiox10060929. [PMID: 34200499 PMCID: PMC8229175 DOI: 10.3390/antiox10060929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/19/2021] [Accepted: 05/31/2021] [Indexed: 12/14/2022] Open
Abstract
Rheumatoid arthritis (RA) development is strongly associated with cigarette smoke exposure, which activates the aryl hydrocarbon receptor (AhR) as a trigger for Th17 inflammatory pathways. We previously demonstrated that the exposure to hydroquinone (HQ), one of the major compounds of cigarette tar, aggravates the arthritis symptomatology in rats. However, the mechanisms related to the HQ-related RA still remain elusive. Cell viability, cytokine secretion, and gene expression were measured in RA human fibroblast-like synoviocytes (RAHFLS) treated with HQ and stimulated or not with TNF-α. Antigen-induced arthritis (AIA) was also elicited in wild type (WT), AhR −/− or IL-17R −/− C57BL/6 mice upon daily exposure to nebulized HQ (25ppm) between days 15 to 21. At day 21, mice were challenged with mBSA and inflammatory parameters were assessed. The in vitro HQ treatment up-regulated TNFR1, TNFR2 expression, and increased ROS production. The co-treatment of HQ and TNF-α enhanced the IL-6 and IL-8 secretion. However, the pre-incubation of RAHFLS with an AhR antagonist inhibited the HQ-mediated cell proliferation and gene expression profile. About the in vivo approach, the HQ exposure worsened the AIA symptoms (edema, pain, cytokines secretion and NETs formation) in WT mice. These AIA effects were abolished in HQ-exposed AhR −/− and IL-17R −/− animals though. Our data demonstrated the harmful HQ influence over the onset of arthritis through the activation and proliferation of synoviocytes. The HQ-related RA severity was also associated with the activation of AhR and IL-17 pathways, highlighting how cigarette smoke compounds can contribute to the RA progression.
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Pal RR, Rajpal V, Singh P, Saraf SA. Recent Findings on Thymoquinone and Its Applications as a Nanocarrier for the Treatment of Cancer and Rheumatoid Arthritis. Pharmaceutics 2021; 13:775. [PMID: 34067322 PMCID: PMC8224699 DOI: 10.3390/pharmaceutics13060775] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/11/2021] [Accepted: 05/18/2021] [Indexed: 12/13/2022] Open
Abstract
Cancer causes a considerable amount of mortality in the world, while arthritis is an immunological dysregulation with multifactorial pathogenesis including genetic and environmental defects. Both conditions have inflammation as a part of their pathogenesis. Resistance to anticancer and disease-modifying antirheumatic drugs (DMARDs) happens frequently through the generation of energy-dependent transporters, which lead to the expulsion of cellular drug contents. Thymoquinone (TQ) is a bioactive molecule with anticancer as well as anti-inflammatory activities via the downregulation of several chemokines and cytokines. Nevertheless, the pharmacological importance and therapeutic feasibility of thymoquinone are underutilized due to intrinsic pharmacokinetics, including short half-life, inadequate biological stability, poor aqueous solubility, and low bioavailability. Owing to these pharmacokinetic limitations of TQ, nanoformulations have gained remarkable attention in recent years. Therefore, this compilation intends to critically analyze recent advancements in rheumatoid arthritis and cancer delivery of TQ. This literature search revealed that nanocarriers exhibit potential results in achieving targetability, maximizing drug internalization, as well as enhancing the anti-inflammatory and anticancer efficacy of TQ. Additionally, TQ-NPs (thymoquinone nanoparticles) as a therapeutic payload modulated autophagy as well as enhanced the potential of other drugs when given in combination. Moreover, nanoformulations improved pharmacokinetics, drug deposition, using EPR (enhanced permeability and retention) and receptor-mediated delivery, and enhanced anti-inflammatory and anticancer properties. TQ's potential to reduce metal toxicity, its clinical trials and patents have also been discussed.
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Affiliation(s)
- Ravi Raj Pal
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University (A Central University), VidyaVihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India; (R.R.P.); (P.S.)
| | - Vasundhara Rajpal
- Department of Biotechology, Babasaheb Bhimrao Ambedkar University (A Central University), VidyaVihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India;
| | - Priya Singh
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University (A Central University), VidyaVihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India; (R.R.P.); (P.S.)
| | - Shubhini A. Saraf
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University (A Central University), VidyaVihar, Raebareli Road, Lucknow 226025, Uttar Pradesh, India; (R.R.P.); (P.S.)
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Nehmar R, Fauconnier L, Alves‐Filho J, Togbe D, DeCauwer A, Bahram S, Le Bert M, Ryffel B, Georgel P. Aryl hydrocarbon receptor (Ahr)-dependent Il-22 expression by type 3 innate lymphoid cells control of acute joint inflammation. J Cell Mol Med 2021; 25:4721-4731. [PMID: 33734594 PMCID: PMC8107095 DOI: 10.1111/jcmm.16433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/16/2021] [Accepted: 02/20/2021] [Indexed: 12/20/2022] Open
Abstract
The aryl hydrocarbon receptor (AHR) controls several inflammatory and metabolic pathways involved in various diseases, including the development of arthritis. Here, we investigated the role of AHR activation in IL-22-dependent acute arthritis using the K/BxN serum transfer model. We observed an overall reduction of cytokine expression in Ahr-deficient mice, along with decreased signs of joint inflammation. Conversely, we report worsened arthritis symptoms in Il-22 deficient mice. Pharmacological stimulation of AHR with the agonist VAG539, as well as injection of recombinant IL-22, given prior arthritogenic triggering, attenuated inflammation and reduced joint destruction. The protective effect of VAG539 was abrogated in Il-22 deficient mice. Finally, conditional Ahr depletion of Rorc-expressing cells was sufficient to attenuate arthritis, thereby uncovering a previously unsuspected role of AHR in type 3 innate lymphoid cells during acute arthritis.
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Affiliation(s)
- Ramzi Nehmar
- Laboratoire d’ImmunoRhumatologie MoléculaireInstitut national de la santé et de la recherche médicale (INSERM) UMR_S 1109Institut thématique interdisciplinaire (ITI) de Médecine de Précision de StrasbourgTransplantex NGFaculté de MédecineFédération Hospitalo‐Universitaire OMICAREFédération de Médecine Translationnelle de Strasbourg (FMTS)Université de StrasbourgStrasbourgFrance
| | | | - Jose Alves‐Filho
- Department of PharmacologyRibeirao Preto Medical School, University of Sao PauloRibeirao PretoBrazil
| | | | - Aurore DeCauwer
- Laboratoire d’ImmunoRhumatologie MoléculaireInstitut national de la santé et de la recherche médicale (INSERM) UMR_S 1109Institut thématique interdisciplinaire (ITI) de Médecine de Précision de StrasbourgTransplantex NGFaculté de MédecineFédération Hospitalo‐Universitaire OMICAREFédération de Médecine Translationnelle de Strasbourg (FMTS)Université de StrasbourgStrasbourgFrance
| | - Seiamak Bahram
- Laboratoire d’ImmunoRhumatologie MoléculaireInstitut national de la santé et de la recherche médicale (INSERM) UMR_S 1109Institut thématique interdisciplinaire (ITI) de Médecine de Précision de StrasbourgTransplantex NGFaculté de MédecineFédération Hospitalo‐Universitaire OMICAREFédération de Médecine Translationnelle de Strasbourg (FMTS)Université de StrasbourgStrasbourgFrance
| | - Marc Le Bert
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM)UMR 7355CNRS‐University of OrléansOrleansFrance
| | - Bernhard Ryffel
- Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM)UMR 7355CNRS‐University of OrléansOrleansFrance
| | - Philippe Georgel
- Laboratoire d’ImmunoRhumatologie MoléculaireInstitut national de la santé et de la recherche médicale (INSERM) UMR_S 1109Institut thématique interdisciplinaire (ITI) de Médecine de Précision de StrasbourgTransplantex NGFaculté de MédecineFédération Hospitalo‐Universitaire OMICAREFédération de Médecine Translationnelle de Strasbourg (FMTS)Université de StrasbourgStrasbourgFrance
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Ziadé N, Bouzamel M, Mrad-Nakhlé M, Abi Karam G, Hmamouchi I, Abouqal R, Farah W. Prospective correlational time-series analysis of the influence of weather and air pollution on joint pain in chronic rheumatic diseases. Clin Rheumatol 2021; 40:3929-3940. [PMID: 33860398 DOI: 10.1007/s10067-021-05735-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/12/2021] [Accepted: 04/11/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES The primary objective was to evaluate the association between weather variables and joint pain in patients with chronic rheumatic diseases (CRD: rheumatoid arthritis (RA), osteoarthritis (OA), and spondyloarthritis (SpA)). A secondary objective was to study the impact of air pollution indicators on CRD pain. METHOD The study is prospective, correlational, with time-series analysis. Patients with CRD, living in a predefined catchment area, filled their level of pain daily using a 0-10 numerical scale (NS), for 1 year. Weather (temperature, relative humidity (H), atmospheric pressure (P)) and air pollution indicators (particulate matters (PM10, PM2.5), nitrogen dioxide (NO2), and ozone (O3)) were recorded daily using monitoring systems positioned in the same area. Association between pain and weather and air pollution indicators was studied using Pearson's correlation. Time-series analysis methodology was applied to determine the temporal relationship between pain and indicators. RESULTS The study included 94 patients, 82% reported they were weather-sensitive. Pain variation was similar across diseases over a year. Pain was associated negatively with temperature, H, and O3, and positively with P and NO2. However, the strength of correlation was moderate; temperature explained 22% of pain variance. A drop of 10°C in temperature corresponded to an increase of 0.5 points in pain NS. Also, there was a significant interaction among environmental factors. In time-series analysis, temperature and NO2 remained independently associated with pain. CONCLUSIONS The perception of joint pain in patients with CRD was correlated with weather and air pollution. The strength of association was moderate and independent of underlying disease. Key Points •Weather variation was moderately correlated with joint pain in chronic rheumatic diseases, with an inverse association with temperature, humidity, and O3. • Air pollution indicators, mainly nitrogen dioxide and ozone, were correlated with joint pain; particulate matters were also correlated but to a lesser extent. • The influence of these environmental factors was independent of the type of rheumatic disease, thus raising the hypothesis of their impact on pain perception mechanisms.
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Affiliation(s)
- Nelly Ziadé
- Rheumatology Department, Saint-Joseph Medical University and Hotel-Dieu de France Hospital, Alfred Naccache blvd. Achrafieh, Beirut, Lebanon.
| | - Maria Bouzamel
- Family Medicine Department, Saint-Joseph Medical University and Hotel-Dieu de France Hospital, Beirut, Lebanon
| | - Myriam Mrad-Nakhlé
- Public Health Department, Faculty of Health Sciences, University of Balamand, Beirut, Lebanon
| | - Ghada Abi Karam
- Rheumatology Department, Saint-Joseph Medical University and Hotel-Dieu de France Hospital, Alfred Naccache blvd. Achrafieh, Beirut, Lebanon
| | - Ihsane Hmamouchi
- Laboratory of Biostatistics, Clinical Research and Epidemiology (LBRCE), Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Redouane Abouqal
- Laboratory of Biostatistics, Clinical Research and Epidemiology (LBRCE), Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Wehbeh Farah
- UEGP, Faculty of Sciences, Saint-Joseph University of Beirut, Beirut, Lebanon
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Activation of the Complement System on Human Endothelial Cells by Urban Particulate Matter Triggers Inflammation-Related Protein Production. Int J Mol Sci 2021; 22:ijms22073336. [PMID: 33805189 PMCID: PMC8038114 DOI: 10.3390/ijms22073336] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 02/02/2023] Open
Abstract
Exposure to particulate matter (PM) is becoming a major global health issue. The amount and time of exposure to PM are known to be closely associated with cardiovascular diseases. However, the mechanism through which PM affects the vascular system is still not clear. Endothelial cells line the interior surface of blood vessels and actively interact with plasma proteins, including the complement system. Unregulated complement activation caused by invaders, such as pollutants, may promote endothelial inflammation. In the present study, we sought to investigate whether urban PM (UPM) acts on the endothelial environment via the complement system. UPM-treated human endothelial cells with normal human serum showed the deposition of membrane attack complexes (MACs) on the cell surface via the alternative pathway of the complement system. Despite the formation of MACs, cell death was not observed, and cell proliferation was increased in UPM-mediated complement activation. Furthermore, complement activation on endothelial cells stimulated the production of inflammation-related proteins. Our results revealed that UPM could activate the complement system in human endothelial cells and that complement activation regulated inflammatory reaction in microenvironment. These findings provide clues with regard to the role of the complement system in pathophysiologic events of vascular disease elicited by air pollution.
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Xu J, Zhang Y, Yao M, Wu G, Duan Z, Zhao X, Zhang J. Long-term effects of ambient PM2.5 on hypertension in multi-ethnic population from Sichuan province, China: a study based on 2013 and 2018 health service surveys. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 28:5991-6004. [PMID: 32978739 DOI: 10.1007/s11356-020-10893-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/16/2020] [Indexed: 02/08/2023]
Abstract
Hypertension, a major risk factor of many severe chronic diseases and leading cause of global disease burden, is reported to be associated with long-term exposure to PM2.5. China's high PM2.5 pollution level has become a major public health issue. However, existing studies from China have got inconsistent results with very limited investigation into the multi-ethnic peoples. This study adds multi-ethnic evidence from Sichuan Province, southwestern China, and assesses ethnic differences of PM2.5 exposure effect on hypertension. We pooled large cross-sectional data from two surveys conducted in 2013 and 2018 to examine the association of long-term exposure to PM2.5 on prevalence of hypertension in adults aged 30 years old and above. Community-specified annual PM2.5 concentration was estimated using satellite data. Thirty-one thousand four hundred sixty-two participants with average exposure concentration of 32.8 μg/m3 were included. The proportions of the Han, the Tibetan, the Yi, and other ethnic people were 89.2%, 7.3%, 3.2%, and 0.3%, respectively. The adjusted odds ratio (OR) was 1.08 (95% CI, 1.04-1.12) for a 10 μg/m3 PM2.5 concentration increment. The adjusted ORs for the Han, the Tibetan, and the Yi were 1.08 (95% CI, 1.04-1.12), 0.03 (95% CI, 0.00-0.27), and 1.75 (95% CI, 1.28-2.38) for a 10 μg/m3 PM2.5 concentration increment, respectively. Stratification analysis found stronger associations in participants with chronic diseases and Yi minority population. The results showed that long-term exposure to PM2.5 may increase the risk of hypertension prevalence in Chinese multi-ethnic adults. The associations were different among ethnicities.
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Affiliation(s)
- Jiayue Xu
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yuqin Zhang
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Minghong Yao
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Gonghua Wu
- School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Zhanqi Duan
- Big Data Center of Sichuan Province, Chengdu, 610041, Sichuan, China
| | - Xing Zhao
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Juying Zhang
- Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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Cruz M, Sanchez-Díez S, I O, Romero-Mesones C, J V, Velde G V, X M. The immunomodulatory effects of diesel exhaust particles in asthma. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114600. [PMID: 33618472 DOI: 10.1016/j.envpol.2020.114600] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/31/2020] [Accepted: 04/13/2020] [Indexed: 06/12/2023]
Abstract
Ammonium persulfate (AP) causes occupational asthma (OA) and diesel exhaust particles (DEP) exacerbate asthma; however, the role of DEP in asthma due to chemical agents has not been assessed to date. Therefore, the present work aims to study the immunomodulatory effects of DEP in a mouse model of chemical asthma. BALB/c ByJ mice were randomly divided into four experimental groups. On days 1 and 8, mice were dermally sensitized with AP or saline. On days 15, 18 and 21, they received intranasal instillations of AP or saline. Two experimental groups received DEP on every of the three challenges. Airway hyperresponsiveness (AHR), lung mechanics, pulmonary inflammation in bronchoalveolar lavage, leukocyte numbers in total lung tissue, oxidative stress and optical projection tomography (OPT) studies were assessed. The AP-sensitized and challenged group showed asthma-like responses, such as airway hyperresponsiveness, increased levels of eosinophils and NKs and lower numbers of monocytes and CD11b-Ly6C- dendritic cells (DCs). Mice exposed to DEP alone showed increased levels of neutrophils and NKs, reduced numbers of monocytes and alveolar macrophages, and increased levels of CD11b + Ly6C- DCs. The AP sensitized and AP + DEP challenged group also showed asthma-like symptoms such as AHR, as well as increased numbers of eosinophils, neutrophils, CD11b + Ly6C- DCs and decreased levels of total and alveolar macrophages and tolerogenic DCs. Particle deposition was visualised using OPT. In the DEP group the particles were distributed relatively evenly, while in the AP + DEP group they were seen mainly in the large conducting airways. The results show that DEP exposure activates the innate immune response and, together with AP, exacerbates asthma immune hallmarks. This mouse model provides the first evidence of the capacity of DEPs to increase CD11b + Ly6C- (Th2-related) DCs. This study also demonstrates, for the first time, a differential deposition pattern of DEP in lungs depending on asthma status.
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Affiliation(s)
- Mj Cruz
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - S Sanchez-Díez
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ojanguren I
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - C Romero-Mesones
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Vanoirbeek J
- Centre of Environment and Health, KU Leuven, Leuven, Belgium
| | - Vande Velde G
- Department of Imaging and Pathology, Biomedical MRI, KU Leuven. Molecular Small Animal Imaging Center (MoSAIC), KU Leuven, Leuven, Belgium
| | - Muñoz X
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain
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Ramirez DC, Gomez Mejiba SE. Pulmonary Neutrophilic Inflammation and Noncommunicable Diseases: Pathophysiology, Redox Mechanisms, Biomarkers, and Therapeutics. Antioxid Redox Signal 2020; 33:211-227. [PMID: 32319787 DOI: 10.1089/ars.2020.8098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: Pulmonary neurophilic inflammation (PNI) is the homing and activation of neutrophil with damage to the microvasculature. This process is involved in pulmonary damage in patients exposed to airborne pollutants (exogenous stressors) and also to systemic inflammation/oxidative stress (endogenous stressors) associated with noncommunicable diseases (NCDs). Recent Advances: PNI is an important trigger of the early onset and progression of NCD in susceptible patients exposed to airborne pollutants. Irritation of the lung microvasculature by exogenous and endogenous stressors causes PNI. Circulating endogenous stressors in NCD can cause PNI. Critical Issues: Air pollution-triggered PNI causes increased circulating endogenous stressors that can trigger NCD in susceptible patients. Systemic inflammation/oxidative stress associated with NCD can cause PNI. Inflammation/end-oxidation products of macromolecules are also potential biomarkers and therapeutic targets for NCD-triggered PNI- and PNI-triggered NCD. Future Directions: Understanding the molecular mechanism of PNI triggered by exogenous or endogenous stressors will help explain the early onset of NCD in susceptible patients exposed to air pollution. It can also help undercover biomarkers and mechanism-based therapeutic targets in air pollutant-triggered PNI, PNI-triggered NCD, and NCD-triggered PNI.
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Affiliation(s)
- Dario C Ramirez
- Laboratory of Experimental and Translational Medicine, IMIBIO-SL, CCT-San Luis, CONICET, School of Chemistry, Biochemistry and Pharmacy, National University of San Luis, San Luis, Argentina
| | - Sandra E Gomez Mejiba
- Laboratory of Experimental Therapeutics and Nutrition, IMIBIO-SL, CCT-San Luis, CONICET, School of Health Sciences, National University of San Luis, San Luis, Argentina
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Boissier MC, Biton J, Semerano L, Decker P, Bessis N. Origins of rheumatoid arthritis. Joint Bone Spine 2020; 87:301-306. [DOI: 10.1016/j.jbspin.2019.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2019] [Indexed: 12/16/2022]
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Prada D, López G, Solleiro-Villavicencio H, Garcia-Cuellar C, Baccarelli AA. Molecular and cellular mechanisms linking air pollution and bone damage. ENVIRONMENTAL RESEARCH 2020; 185:109465. [PMID: 32305664 PMCID: PMC7430176 DOI: 10.1016/j.envres.2020.109465] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/10/2020] [Accepted: 03/29/2020] [Indexed: 05/04/2023]
Abstract
Air pollution is the second most important risk factor associated with noncommunicable diseases after smoking. The effects of pollution on health are commonly attributable to particulate matter (PM), a complex mixture of particles suspended in the air. PM can penetrate the lower respiratory tract and has harmful direct and indirect effects on different organs and tissues. Direct effects are caused by the ability of PM components to cross the respiratory membrane and enter the bloodstream; indirect effects are systemic consequences of the local airway response. Recent work suggests that PM is an independent risk factor for low bone mineral density and osteoporosis-related fractures. Osteoporosis is a common age-related disease closely linked to bone fractures, with severe clinical consequences affecting quality of life, morbidity, and mortality. In this review, we discuss potential mechanisms behind the association between outdoor air pollution, especially PM, and bone damage. The discussion features four main mechanisms: 1) several different atmospheric pollutants can induce low-grade systemic inflammation, which affects bone metabolism through a specific effect of cytokines such as TNFα, IL-1β, IL-6, and IL-17 on osteoblast and osteoclast differentiation and function; 2) some pollutants, particularly certain gas and metal compounds, can cause oxidative damage in the airway and bone cells; 3) different groups of pollutants can act as endocrine disruptors when binding to the receptors in bone cells, changing their functioning; and 4) air pollution can directly and indirectly cause vitamin D deficiency. Characterizing these mechanisms will better define the physiopathology of bone damage, and recognizing air pollution as a modifiable risk factor for osteoporosis will inform environmental policies. Such knowledge will also guide the prevention of fractures due to fragility and help reduce health-related costs.
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Affiliation(s)
- Diddier Prada
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, 10032, USA; Unit for Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 14080, Mexico; Department of Biomedical Informatics, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Gerard López
- Program of Support and Promotion of Research (AFINES), School of Medicine, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico; Department of Physiology, Universidad Nacional Autónoma de México, Mexico City, 14080, Mexico.
| | - Helena Solleiro-Villavicencio
- Program of Support and Promotion of Research (AFINES), School of Medicine, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Claudia Garcia-Cuellar
- Unit for Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 14080, Mexico.
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, 10032, USA.
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Conticini E, Frediani B, Caro D. Can atmospheric pollution be considered a co-factor in extremely high level of SARS-CoV-2 lethality in Northern Italy? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114465. [PMID: 32268945 PMCID: PMC7128509 DOI: 10.1016/j.envpol.2020.114465] [Citation(s) in RCA: 504] [Impact Index Per Article: 126.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 05/10/2023]
Abstract
This paper investigates the correlation between the high level of Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS-CoV-2) lethality and the atmospheric pollution in Northern Italy. Indeed, Lombardy and Emilia Romagna are Italian regions with both the highest level of virus lethality in the world and one of Europe's most polluted area. Based on this correlation, this paper analyzes the possible link between pollution and the development of acute respiratory distress syndrome and eventually death. We provide evidence that people living in an area with high levels of pollutant are more prone to develop chronic respiratory conditions and suitable to any infective agent. Moreover, a prolonged exposure to air pollution leads to a chronic inflammatory stimulus, even in young and healthy subjects. We conclude that the high level of pollution in Northern Italy should be considered an additional co-factor of the high level of lethality recorded in that area.
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Affiliation(s)
- Edoardo Conticini
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, viale Mario Bracci 1, Siena, Italy
| | - Bruno Frediani
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Le Scotte, viale Mario Bracci 1, Siena, Italy
| | - Dario Caro
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, Roskilde, Denmark.
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Sesé L, Jeny F, Uzunhan Y, Khamis W, Freynet O, Valeyre D, Bernaudin JF, Annesi-Maesano I, Nunes H. [The effect of air pollution in diffuse interstitial lung disease]. Rev Mal Respir 2020; 37:389-398. [PMID: 32278507 DOI: 10.1016/j.rmr.2020.02.015] [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: 09/09/2019] [Accepted: 02/09/2020] [Indexed: 11/30/2022]
Abstract
Few studies have examined the effects of air pollution in diffuse interstitial lung disease and they have focused on small numbers of patients. Most data are available in idiopathic pulmonary fibrosis and studies suggest that the level of exposure to pollutants may influence the development of acute exacerbations (ozone and NO2), their incidence (NO2), decline in respiratory function (PM10) and death (PM10 and PM2.5). Several studies show an increase in the incidence of rheumatoid arthritis in people living near busy roads. In systemic scleroderma, hypersensitivity pneumonitis and sarcoidosis although negative effects of pollution have been reported the data are insufficient to be conclusive. Nevertheless, the observed effects of air pollution are consistent with those described for other chronic respiratory diseases. Exposure to pollution induces oxidative stress, chronic inflammation and shortening of telomeres, which are all mechanisms described in fibrogenesis. New epidemiological studies are needed with individual measurements of exposure to outdoor and indoor pollution, as well as fundamental studies to clarify the effect of pollution on fibrogenesis.
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Affiliation(s)
- L Sesé
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France; EPAR, INSERM UMR-S 1136, Sorbonne Université, Paris, France; Service d'explorations fonctionnelles, AP-HP, hôpital Avicenne, Bobigny, France.
| | - F Jeny
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France; INSERM 1272 « Réponses cellulaires et fonctionnelles à l'hypoxie », Université Paris 13, Bobigny, France
| | - Y Uzunhan
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France; INSERM 1272 « Réponses cellulaires et fonctionnelles à l'hypoxie », Université Paris 13, Bobigny, France
| | - W Khamis
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France
| | - O Freynet
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France
| | - D Valeyre
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France; INSERM 1272 « Réponses cellulaires et fonctionnelles à l'hypoxie », Université Paris 13, Bobigny, France
| | - J-F Bernaudin
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France; INSERM 1272 « Réponses cellulaires et fonctionnelles à l'hypoxie », Université Paris 13, Bobigny, France
| | | | - H Nunes
- Service de pneumologie, hôpital Avicenne, AP-HP, Bobigny, France; INSERM 1272 « Réponses cellulaires et fonctionnelles à l'hypoxie », Université Paris 13, Bobigny, France
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Di D, Zhang L, Wu X, Leng R. Long-term exposure to outdoor air pollution and the risk of development of rheumatoid arthritis: A systematic review and meta-analysis. Semin Arthritis Rheum 2019; 50:266-275. [PMID: 31761290 DOI: 10.1016/j.semarthrit.2019.10.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 09/18/2019] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Air pollution ranks high among risk factors for the global burden of disease. The associations of air pollution and rheumatoid arthritis (RA) are controversial. This systematic review and meta-analyses has analyzed the association between outdoor air pollution and the development of RA. METHODS PubMed, Embase and Web of science (last search, May 21, 2019) were searched. A meta-analysis was performed with a random-effects model, and summarized syntheses effects were expressed as relative risks (RRs). RESULTS Eight studies were identified from among 1296 articles. The pooled RR for the association between ozone (O3) exposure and RA was 1.16 (95% CI: 1.15, 1.18). The pooled RR for the association of RA risk with proximity to traffic road was 1.34 (95% CI: 1.11, 1.62) for residence ≤ 50 m from a traffic road compared with residence more far away. In contrast, there was an inverse effect between PM2.5 exposure and incident RA, and similar result of PM10 was found by subgroup analysis in seropositive RA. In addition, there was no clear evidence between exposing to PM10, CO, NO2 and NO2 (tenth year prior) and RA risk. CONCLUSION Existing evidence indicated significant associations between some markers (ozone, proximity to traffic road and PM2.5) of air pollution and RA. For generalizability of evidence, that research should be extended to developing countries where air pollution (including indoor) is high may provide more complete insight into risk factors for RA.
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Affiliation(s)
- Dongsheng Di
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui 230032, China
| | - Linlin Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui 230032, China
| | - Xiaoxiao Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui 230032, China
| | - Ruixue Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui 230032, China.
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Peng F, Tsuji G, Zhang JZ, Chen Z, Furue M. Potential role of PM 2.5 in melanogenesis. ENVIRONMENT INTERNATIONAL 2019; 132:105063. [PMID: 31394397 DOI: 10.1016/j.envint.2019.105063] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/04/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
Ambient particulate matter 2.5 (PM2.5) is one of the main components of air pollutants, which can absorb many polycyclic aromatic hydrocarbons and metals. The effect of PM2.5 on human skin and its biological significance in skin homeostasis remain incompletely understood. Previous studies demonstrated that PM2.5 can activate aryl hydrocarbon receptor (AhR), generate reactive oxygen species, and induce skin inflammation. These processes may be involved in melanocyte homeostasis and melanogenesis. We hypothesize that AhR signaling may be responsible for PM2.5-related hyperpigmentation.
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Affiliation(s)
- Fen Peng
- Department of Dermatology, Peking University People's Hospital, Beijing 100044, China
| | - Gaku Tsuji
- Department of Dermatology, Graduate School of Medicine, Faculty of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan; Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka 812-8582, Japan.
| | - Jian-Zhong Zhang
- Department of Dermatology, Peking University People's Hospital, Beijing 100044, China
| | - Zhou Chen
- Department of Dermatology, Peking University People's Hospital, Beijing 100044, China
| | - Masutaka Furue
- Department of Dermatology, Graduate School of Medicine, Faculty of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan; Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka 812-8582, Japan; Division of Skin Surface Sensing, Department of Dermatology, Graduate School of Medicine, Faculty of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
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38
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Shepherd A, Mullins JT. Arthritis diagnosis and early-life exposure to air pollution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:1030-1037. [PMID: 31434180 DOI: 10.1016/j.envpol.2019.07.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 07/01/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Evaluate the relationship between arthritis diagnosis in those over 50 and exposure to extreme air pollution in utero or infancy (<1 year of age). METHODS Compare rates of arthritis diagnosis between groups that experienced differential air pollution exposure in early-life due to quasi-random variation in birth location and date relative to the 1952 Great Smog in London. We use regression-estimated difference-in-differences analyses based on English Longitudinal Study of Aging (ELSA) data. RESULTS In the 2816 respondent sample, aged 51-62, the arthritis diagnosis rate is 22.8%, with 16.4% reporting osteoarthritis and 4.6% reporting rheumatoid arthritis. We estimate that exposure to the Great Smog in infancy increases the arthritis diagnosis rate by 23.4 percentage points (95% CI: 1.97 to 44.8). Decomposing these results by type of arthritis reveals that the rheumatoid arthritis diagnosis rate increases due to infant exposure are larger and more significant than those for osteoarthritis: 14.9 percentage points (95% CI: 0.495 to 29.4) versus 9.5 percentage points (95% CI: -11.9 to 30.8). In utero exposure is not associated with significant increases in arthritis diagnosis rates. CONCLUSIONS Our results are the first to link early-life air pollution exposure to later-life arthritis diagnoses, and suggest a particularly strong link for RA. These findings are consistent with those of shorter-term, correlational studies, and indicate that health effects of air pollution exposure can span decades and extend beyond cardiopulmonary systems.
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Affiliation(s)
- Andrew Shepherd
- University of Massachusetts Amherst, Department of Resource Economics, Stockbridge Hall, 80 Campus Center Way, Amherst, MA 01003, United States
| | - Jamie T Mullins
- University of Massachusetts Amherst, Department of Resource Economics, Stockbridge Hall, 80 Campus Center Way, Amherst, MA 01003, United States.
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Zhang S, Ren Q, Qi H, Liu S, Liu Y. Adverse Effects of Fine-Particle Exposure on Joints and Their Surrounding Cells and Microenvironment. ACS NANO 2019; 13:2729-2748. [PMID: 30773006 DOI: 10.1021/acsnano.8b08517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Current understanding of the health risks and adverse effects upon exposure to fine particles is premised on the direct association of particles with target organs, particularly the lung; however, fine-particle exposure has also been found to have detrimental effects on sealed cavities distant to the portal-of-entry, such as joints. Moreover, the fundamental toxicological issues have been ascribed to the direct toxic mechanisms, in particular, oxidative stress and proinflammatory responses, without exploring the indirect mechanisms, such as compensated, adaptive, and secondary effects. In this Review, we recapitulate the current findings regarding the detrimental effects of fine-particle exposure on joints, the surrounding cells, and microenvironment, as well as their deteriorating impact on the progression of arthritis. We also elaborate the likely molecular mechanisms underlying the particle-induced detrimental influence on joints, not limited to direct toxicity, but also considering the other indirect mechanisms. Because of the similarities between fine air particles and engineered nanomaterials, we compare the toxicities of engineered nanomaterials to those of fine air particles. Arthritis and joint injuries are prevalent, particularly in the elderly population. Considering the severity of global exposure to fine particles and limited studies assessing the detrimental effects of fine-particle exposure on joints and arthritis, this Review aims to appeal to a broad interest and to promote more research efforts in this field.
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Affiliation(s)
- Shuping Zhang
- Institute for Medical Engineering and Science , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Quanzhong Ren
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , P. R. China
| | - Hui Qi
- Beijing Jishuitan Hospital , Peking University Health Science Center , Beijing 100035 , P. R. China
- Beijing Research Institute of Traumatology and Orthopaedics , Beijing 100035 , P. R. China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , P. R. China
| | - Yajun Liu
- Beijing Jishuitan Hospital , Peking University Health Science Center , Beijing 100035 , P. R. China
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O'Driscoll CA, Mezrich JD. The Aryl Hydrocarbon Receptor as an Immune-Modulator of Atmospheric Particulate Matter-Mediated Autoimmunity. Front Immunol 2018; 9:2833. [PMID: 30574142 PMCID: PMC6291477 DOI: 10.3389/fimmu.2018.02833] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/16/2018] [Indexed: 12/22/2022] Open
Abstract
This review examines the current literature on the effects of atmospheric particulate matter (PM) on autoimmune disease and proposes a new role for the aryl hydrocarbon receptor (AHR) as a modulator of T cells in PM-mediated autoimmune disease. There is a significant body of literature regarding the strong epidemiologic correlations between PM exposures and worsened autoimmune diseases. Genetic predispositions account for 30% of all autoimmune disease leaving environmental factors as major contributors. Increases in incidence and prevalence of autoimmune disease have occurred concurrently with an increase in air pollution. Currently, atmospheric PM is considered to be the greatest environmental health risk worldwide. Atmospheric PM is a complex heterogeneous mixture composed of diverse adsorbed organic compounds such as polycyclic aromatic hydrocarbons (PAHs) and dioxins, among others. Exposure to atmospheric PM has been shown to aggravate several autoimmune diseases. Despite strong correlations between exposure to atmospheric PM and worsened autoimmune disease, the mechanisms underlying aggravated disease are largely unknown. The AHR is a ligand activated transcription factor that responds to endogenous and exogenous ligands including toxicants present in PM, such as PAHs and dioxins. A few studies have investigated the effects of atmospheric PM on AHR activation and immune function and demonstrated that atmospheric PM can activate the AHR, change cytokine expression, and alter T cell differentiation. Several studies have found that the AHR modulates the balance between regulatory and effector T cell functions and drives T cell differentiation in vitro and in vivo using murine models of autoimmune disease. However, there are very few studies on the role of AHR in PM-mediated autoimmune disease. The AHR plays a critical role in the balance of effector and regulatory T cells and in autoimmune disease. With increased incidence and prevalence of autoimmune disease occurring concurrently with increases in air pollution, potential mechanisms that drive inflammatory and exacerbated disease need to be elucidated. This review focuses on the AHR as a potential mechanistic target for modulating T cell responses associated with PM-mediated autoimmune disease providing the most up-to-date literature on the role of AHR in autoreactive T cell function and autoimmune disease.
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Affiliation(s)
- Chelsea A O'Driscoll
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States.,Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States
| | - Joshua D Mezrich
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States
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