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Lin TY, Makrufardi F, Tung NT, Manullang A, Chang PJ, Lo CY, Chiu TH, Tung PH, Lin CH, Lin HC, Wang CH, Lin SM. Different Impacts of Traffic-Related Air Pollution on Early-Onset and Late-Onset Asthma. J Asthma Allergy 2024; 17:195-208. [PMID: 38505396 PMCID: PMC10949997 DOI: 10.2147/jaa.s451725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/28/2024] [Indexed: 03/21/2024] Open
Abstract
Background Early-onset asthma (EOA) and late-onset asthma (LOA) are two distinct phenotypes. Air pollution has been associated with an increase in poorer asthma outcomes. The objective of this study was to examine the effects of traffic-related air pollution (TRAP) on asthma outcomes in EOA and LOA patients. Methods A cross-sectional study was conducted on 675 asthma patients (LOA: 415) recruited from a major medical center in Taiwan. The land-use regression (LUR) model was used to estimate the level of exposure to PM10, PM2.5, NO2, and O3 on an individual level. We investigated the association between TRAP and asthma outcomes in EOA and LOA patients, stratified by allergic sensitization status, using a regression approach. Results An increase in PM10 was associated with younger age of onset, increased asthma duration, and decreased lung function in EOA patients (p<0.05). An increase in PM10 was associated with older age of onset, and decreased asthma duration, eosinophil count, and Asthma Control Test (ACT) score in LOA patients. An increase in PM2.5 was associated with younger age of onset, increased asthma duration, decreased eosinophil count, and lung function in EOA patients (p<0.05). An increase in PM2.5 was associated with decreased lung function and ACT score in LOA patients. An increase in NO2 was associated with increased eosinophil count and decreased lung function in EOA patients (p<0.05). An increase in O3 was associated with decreased lung function in LOA patients (p<0.05). In addition, associations of TRAP with age of onset and eosinophil counts were mainly observed in both EOA and LOA patients with allergic sensitization, and an association with ACT was mainly observed in LOA patients without allergic sensitization. Conclusion The impact of TRAP on age of onset, eosinophil count, and lung function in EOA patients, and ACT in LOA patients, was affected by the status of allergic sensitization.
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Affiliation(s)
- Ting-Yu Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Firdian Makrufardi
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Child Health, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada – Dr. Sardjito Hospital, Yogyakarta, Indonesia
| | - Nguyen Thanh Tung
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Otorhinolaryngology Department, Cho Ray Hospital, Ho Chi Minh City, Vietnam
| | - Amja Manullang
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Po-Jui Chang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Yu Lo
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tzu-Hsuan Chiu
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Pi-Hung Tung
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Chiung-Hung Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Horng-Chyuan Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Hua Wang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Shu-Min Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Abstract
PURPOSE OF REVIEW This review addresses recent progress in our understanding of the role of regulatory T (Treg) cells in enforcing immune tolerance and tissue homeostasis in the lung at steady state and in directing the immune response in asthmatic lung inflammation. RECENT FINDINGS Regulatory T cells regulate the innate and adaptive immune responses at steady state to enforce immune tolerance in lung tissues at steady state and their control of the allergic inflammatory responses induced by allergens. This regulatory function can break down in the context of chronic asthmatic airway inflammation such that the lung tissue Treg cells become skewed towards a pathogenic phenotype that aggravates and perpetuates disease. Subversion of lung tissue Treg cell function involves their upregulation of Notch4 expression, which in turn acts to amplify T helper type 2 and type 17 and innate lymphoid cell type 2 responses in the airways. SUMMARY A dual role for Treg cells has emerged both as immune regulators but also a potential disease effectors in asthma, with implications for disease therapy.
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Affiliation(s)
- Hani Harb
- Institute for Medical Microbiology and Virology, University Hospital Dresden, Technical University Dresden, Germany
| | - Talal A Chatila
- Division of Immunology, Boston Children’s Hospital, Department of Pediatrics, Harvard Medical School, Boston, USA
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Sekar A, Jasna RS, Binoy BV, Mohan P, Kuttiparichel Varghese G. Air quality change and public perception during the COVID-19 lockdown in India. GONDWANA RESEARCH : INTERNATIONAL GEOSCIENCE JOURNAL 2023; 114:15-29. [PMID: 35529076 PMCID: PMC9065608 DOI: 10.1016/j.gr.2022.04.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 04/10/2022] [Accepted: 04/12/2022] [Indexed: 05/28/2023]
Abstract
This study aims at analyzing the change in air quality following the COVID-19 lockdown in India and its perception by the general public. Air quality data for 100 days recorded at 193 stations throughout India were analyzed between 25th March to 17th May 2020. A nationwide online survey was conducted to obtain public perceptions of air quality improvement (n = 1750). On average, approximately 40% improvement in the air quality index was observed, contributed by a reduction in 40% of PM10, 44% of PM2.5, 51% of NO2 and 21% of SO2. There was a significant difference between the levels of all the pollutants before and after the lockdown (p < 0.05), except ozone. The correlation between PM10 and PM2.5 with ozone was significant after the lockdown period, indicating that a significant portion of the particulates present in the atmosphere after the lockdown period is secondary. The values of PM2.5/PM10 were found to be >0.5 in North East states and this observation points to the long-distance transport of PM2.5 from other places. The survey for public perception showed that 60% of the respondents perceived improvement in air quality. Household emissions were perceived to be a significant source of pollution after the lockdown. An odds ratio (OR) of 17 (95%, CI: 6.42, 47.04) indicated a very high dependence of perception on actual air quality. OR between air quality and health improvement was 5.2 (95%, CI: 2.69, 10.01), indicating significant health improvement due to air quality improvement. Google Trends analysis showed that media did not influence shaping the perception. There was a significant improvement in the actual and perceived air quality in India after the COVID-19-induced lockdown. PM10 levels had the most decisive influence in shaping public perception.
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Affiliation(s)
- Abinaya Sekar
- Department of Civil Engineering, Environmental Engineering Lab, National Institute of Technology Calicut, 673601, India
| | - R S Jasna
- Department of Civil Engineering, Environmental Engineering Lab, National Institute of Technology Calicut, 673601, India
| | - B V Binoy
- Department of Architecture and Planning, National Institute of Technology Calicut, 673601, India
| | - Prem Mohan
- Department of Civil Engineering, Environmental Engineering Lab, National Institute of Technology Calicut, 673601, India
| | - George Kuttiparichel Varghese
- Department of Civil Engineering, Environmental Engineering Lab, National Institute of Technology Calicut, 673601, India
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Aubert A, Lane M, Jung K, Granville DJ. Granzyme B as a therapeutic target: an update in 2022. Expert Opin Ther Targets 2022; 26:979-993. [PMID: 36542784 DOI: 10.1080/14728222.2022.2161890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Granzyme B is a serine protease extensively studied for its implication in cytotoxic lymphocyte-mediated apoptosis. In recent years, the paradigm that the role of granzyme B is restricted to immune cell-mediated killing has been challenged as extracellular roles for the protease have emerged. While mostly absent from healthy tissues, granzyme B levels are elevated in several autoimmune and/or chronic inflammatory conditions. In the skin, its accumulation significantly impairs proper wound healing. AREAS COVERED After an overview of the current knowledge on granzyme B, a description of newly identified functions will be presented, focussing on granzyme B ability to promote cell-cell and dermal-epidermal junction disruption, extracellular matrix degradation, vascular permeabilization, and epithelial barrier dysfunction. Progress in granzyme B inhibition, as well as the use of granzyme B inhibitors for the treatment of tissue damage, will be discussed. EXPERT OPINION The absence of endogenous extracellular inhibitors renders extracellular granzyme B accumulation deleterious for the proper healing of chronic wounds due to sustained proteolytic activity. Consequently, specific granzyme B inhibitors have been developed as new therapeutic approaches. Beyond applications in wound healing, other autoimmune and/or chronic inflammatory conditions related to exacerbated granzyme B activity may also benefit from the development of these inhibitors.
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Affiliation(s)
- Alexandre Aubert
- International Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,British Columbia Professional Firefighters' Burn and Wound Healing Group, Vancouver, BC, Canada
| | - Michael Lane
- International Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,British Columbia Professional Firefighters' Burn and Wound Healing Group, Vancouver, BC, Canada
| | - Karen Jung
- International Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,British Columbia Professional Firefighters' Burn and Wound Healing Group, Vancouver, BC, Canada
| | - David J Granville
- International Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,British Columbia Professional Firefighters' Burn and Wound Healing Group, Vancouver, BC, Canada
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Lu W, Wang LA, Mann J, Jenny A, Romero C, Kuster A, Canuz E, Pillarisetti A, Smith KR, Balmes J, Thompson L. Biomass Smoke Exposure and Atopy among Young Children in the Western Highlands of Guatemala: A Prospective Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14064. [PMID: 36360942 PMCID: PMC9656762 DOI: 10.3390/ijerph192114064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Women and children in rural regions of low-income countries are exposed to high levels of household air pollution (HAP) as they traditionally tend to household chores such as cooking with biomass fuels. Early life exposure to air pollution is associated with aeroallergen sensitization and developing allergic diseases at older ages. This prospective cohort study assigned HAP-reducing chimney stoves to 557 households in rural Guatemala at different ages of the study children. The children's air pollution exposure was measured using personal CO diffusion tubes. Allergic outcomes at 4-5 years old were assessed using skin prick tests and International Study of Asthma and Allergies in Childhood (ISAAC)-based questionnaires. Children assigned to improved stoves before 6 months old had the lowest HAP exposure compared to the other groups. Longer exposure to the unimproved stoves was associated with higher risks of maternal-reported allergic asthma (OR = 2.42, 95% CI: 1.11-5.48) and rhinitis symptoms (OR = 2.01, 95% CI: 1.13-3.58). No significant association was found for sensitization to common allergens such as dust mites and cockroaches based on skin prick tests. Reducing HAP by improving biomass burning conditions might be beneficial in preventing allergic diseases among children in rural low-income populations.
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Affiliation(s)
- Wenxin Lu
- School of Public Health, University of California, Berkeley, CA 94720, USA
| | - Laura Ann Wang
- Department of Pediatrics, University of Colorado, Aurora, CO 80045, USA
| | - Jennifer Mann
- School of Public Health, University of California, Berkeley, CA 94720, USA
| | - Alisa Jenny
- Institute for Global Health Sciences, University of California, San Francisco, CA 94158, USA
| | - Carolina Romero
- Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City 01015, Guatemala
| | - Andrea Kuster
- School of Nursing, University of California, San Francisco, CA 94158, USA
| | - Eduardo Canuz
- Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City 01015, Guatemala
| | - Ajay Pillarisetti
- School of Public Health, University of California, Berkeley, CA 94720, USA
| | - Kirk R. Smith
- School of Public Health, University of California, Berkeley, CA 94720, USA
| | - John Balmes
- School of Public Health, University of California, Berkeley, CA 94720, USA
| | - Lisa Thompson
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA 30322, USA
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Exposure to nanoparticles and occupational allergy. Curr Opin Allergy Clin Immunol 2022; 22:55-63. [DOI: 10.1097/aci.0000000000000818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sung M, Kim M, Kim HH, Rha YH, Park Y, Park YM, Sheen YH, Yum HY, Lee KS, Lee YJ, Chun YH, Jee HM, Choi BS, Choi SH, Kim HB. Effects of outdoor air pollution on children with allergic rhinitis. ALLERGY ASTHMA & RESPIRATORY DISEASE 2022. [DOI: 10.4168/aard.2022.10.3.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Myongsoon Sung
- Department of Pediatrics, Soonchunhyang University Gumi Hospital, Gumi, Korea
| | - Minji Kim
- Department of Pediatrics, Chungnam National University Sejong Hospital, Sejong, Korea
| | - Hyun Hee Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yeong-Ho Rha
- Department of Pediatrics, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Yang Park
- Department of Pediatrics, Wonkwang University Sanbon Hospital, Gunpo, Korea
| | - Yong Mean Park
- Department of Pediatrics, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Youn Ho Sheen
- Department of Pediatrics, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Hye Yung Yum
- Department of Pediatrics, Seoul Medical Center, Seoul, Korea
| | - Kyung Suk Lee
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - Yong Ju Lee
- Department of Pediatrics, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Yoon Hong Chun
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hye Mi Jee
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Bong Seok Choi
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Sun Hee Choi
- Department of Pediatrics, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Hyo-Bin Kim
- Department of Pediatrics, Asthma and Allergy Center, Inje University Sanggye Paik Hospital, Seoul, Korea
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Adejare AA, Gautam Y, Madzia J, Mersha T. Unraveling racial disparities in asthma emergency department visits using electronic healthcare records and machine learning. J Asthma 2022; 59:79-93. [PMID: 33112174 PMCID: PMC8221365 DOI: 10.1080/02770903.2020.1838539] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Hospital emergency department (ED) visits by asthmatics differ based on race and season. The objectives of this study were to investigate season- and race-specific disparities for asthma risk, and to identify environmental exposure variables associated with ED visits among more than 42,000 individuals of African American (AA) and European American (EA) descent identified through electronic health records (EHRs). METHODS We examined data from 42,375 individuals (AAs = 14,491, EAs = 27,884) identified in EHRs. We considered associated demographic (race, age, gender, insurance), clinical (smoking status, ED visits, FEV1%), and environmental exposures data (mold, pollen, and pollutants). Machine learning techniques, including random forest (RF), extreme gradient boosting (XGB), and decision tree (DT) were used to build and identify race- and -season-specific predictive models for asthma ED visits. RESULTS Significant differences in ED visits and FEV1% among AAs and EAs were identified. ED visits by AAs was 32.0% higher than EAs and AAs had 6.4% lower FEV1% value than EAs. XGB model was used to accurately classify asthma patients visiting ED into AAs and EAs. Pollen factor and pollution (PM2.5, PM10) were the key variables for asthma in AAs and EAs, respectively. Age and cigarette smoking increase asthma risk independent of seasons. CONCLUSIONS In this study, we observed racial and season-specific disparities between AAs and EAs asthmatics for ED visit and FEV1% severity, suggesting the need to address asthma disparities through key predictors including socio-economic status, particulate matter, and mold.
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Affiliation(s)
- Adeboye A. Adejare
- Department of Biomedical Informatics, University of Cincinnati; Cincinnati, OH, USA
| | - Yadu Gautam
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Juliana Madzia
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Tesfaye Mersha
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA,Corresponding author: Tesfaye B. Mersha, Ph.D. Associate Professor Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati, 3333 Burnet Avenue, MLC 7037, Cincinnati, OH 45229-3026. Phone: (513) 803-2766 Fax: (513) 636-1657.
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Faisal AA, Kafy AA, Abdul Fattah M, Amir Jahir DM, Al Rakib A, Rahaman ZA, Ferdousi J, Huang X. Assessment of temporal shifting of PM 2.5, lockdown effect, and influences of seasonal meteorological factors over the fastest-growing megacity, Dhaka. SPATIAL INFORMATION RESEARCH 2022; 30:441-453. [PMCID: PMC8933196 DOI: 10.1007/s41324-022-00441-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/13/2022] [Accepted: 02/14/2022] [Indexed: 06/16/2023]
Abstract
Dhaka is subjected to high pollution levels throughout the year, holding some relatively high amounts of pollution readings, making its air unhealthy to breathe. The study examined hourly, shifting, seasonal fluctuations in particulate matter (PM2.5), the effects of seasonal meteorological variables, and the lockdown effect over the megacity of Dhaka from 2019 to 2021 using data from AirNow. The results indicate the daily average PM2.5 concentration between 2019 and 2021 was 112.49 µg/m3, about four times higher than the WHO limit and two times higher than the Bangladesh standard. Daily PM2.5 concentrations was high during morning and evening pick-up hours, reaching a maximum hourly concentration of 472.9 µg/m3 in February 2020. The maximum average PM2.5 concentration was 211.23 µg/m3 in March 2021 (winter season), and the lowest average was 27.58 µg/m3 in August 2020 (rainy season). The Pearson correlation coefficient (r) between the PM2.5 and meteorological variables were inverse with rainfall (− 0.62), temperature (− 0.73), humidity (− 0.82), but positive with wind (0.09). Daily average Air Quality Index (AQI) concentrations improved from 108.53 to 67.99 µg/m3 during the lockdown period. Finally, the study recommended many mitigation strategies that might assist accountable authorities in lowering the number of life-threatening components in the air.
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Affiliation(s)
- Abdullah-Al- Faisal
- Department of Urban & Regional Planning, Rajshahi University of Engineering & Technology (RUET), Rajshahi, 6204 Bangladesh
- Department of Applied Geographical Information Systems and Remote Sensing, University of Southampton, Southampton, SO17 1BJ UK
| | - Abdulla - Al Kafy
- Department of Urban & Regional Planning, Rajshahi University of Engineering & Technology (RUET), Rajshahi, 6204 Bangladesh
- ICLEI South Asia, Rajshahi City Corporation, Rajshahi, 6203 Bangladesh
| | - Md. Abdul Fattah
- Department of Urban and Regional Planning, Khulna University of Engineering and Technology, Khulna, Bangladesh
| | - Dewan Md. Amir Jahir
- Department of Urban & Regional Planning, Rajshahi University of Engineering & Technology (RUET), Rajshahi, 6204 Bangladesh
| | - Abdullah Al Rakib
- Department of Urban & Regional Planning, Rajshahi University of Engineering & Technology (RUET), Rajshahi, 6204 Bangladesh
| | - Zullyadini A. Rahaman
- Department of Geography & Environment, Faculty of Human Sciences, Sultan Idris Education University, 35900 Tanjung Malim, Malaysia
| | - Jannatul Ferdousi
- Institute of Business Administration, Army Institute of Business Administration, Dhaka, 1344 Bangladesh
| | - Xiao Huang
- Department of Geosciences, University of Arkansas-Fayetteville, 340 N. Campus Dr., Fayetteville, AR 72701 USA
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Cogeneration plant and environmental allergic diseases: is it really an eco-friendly energy source? Ann Occup Environ Med 2021; 32:e38. [PMID: 34754459 PMCID: PMC7783204 DOI: 10.35371/aoem.2020.32.e38] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 11/11/2020] [Indexed: 12/21/2022] Open
Abstract
Background Combined heat and power generation (CHP generation, also called ‘cogeneration’) is attracting public attention for its high thermal efficiency, without considering possible adverse environmental health effects.This study investigated the potential role of cogeneration plants in inducing 3 environmental diseases: asthma, allergic rhinitis, and atopic dermatitis. Methods From 1 January 2013 to 31 December 2017, the towns (dongs) of South Korea in which a cogeneration plant started operation were selected as study sites. For comparison, a matched control dong with the most similar Gross Regional Domestic Product for each case dong was selected. The numbers of outpatient visits, inpatient admissions, and emergency visits provided by the National Health Insurance Sharing Service (NHISS) were analyzed using an interrupted time-series design. For air pollutants, the concentrations of 5 air pollutants from the AIRKOREA dataset were used. Results A total of 6 cogeneration plants in 6 case dongs started operation during the study period. For overall case dongs, the pre-CHP trend was 1.04 (95% confidence interval [CI]: 1.038–1.042), and the post-CHP trend was 1.248 (95% CI: 1.244–1.253). The intercept change due to the CHP plant was 1.15 (95% CI: 1.137–1.162). For overall control dongs, the pre-CHP trend was 1.133 (95% CI: 1.132–1.135), and the post-CHP trend was 1.065 (95% CI: 1.06–1.069). The intercept change due to the CHP plant was 0.888 (95% CI: 0.878–0.899). Only for CO and NO2, the relative risk (RR) for overall case dongs was statistically significantly increased, and the RR for the overall control dongs was statistically insignificant. Conclusions Possible hazardous emissions, like CO and NO2, from cogeneration plants could induce environmental diseases in nearby community populations. The emissions from cogeneration plants should be investigated regularly by a governmental agency, and the long-term health outcomes of nearby community residents should be investigated.
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Shin JW, Kim J, Ham S, Choi SM, Lee CH, Lee JC, Kim JH, Cho SH, Kang HR, Kim YM, Chung DH, Chung Y, Bae YS, Bae YS, Roh TY, Kim T, Kim HY. A unique population of neutrophils generated by air pollutant-induced lung damage exacerbates airway inflammation. J Allergy Clin Immunol 2021; 149:1253-1269.e8. [PMID: 34653517 DOI: 10.1016/j.jaci.2021.09.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 08/26/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Diesel exhaust particles (DEPs) are the main component of traffic-related air pollution and have been implicated in the pathogenesis and exacerbation of asthma. However, the mechanism by which DEP exposure aggravates asthma symptoms remains unclear. OBJECTIVE This study aimed to identify a key cellular player of air pollutant-induced asthma exacerbation and development. METHODS We examined the distribution of innate immune cells in the murine models of asthma induced by house dust mite and DEP. Changes in immune cell profiles caused by DEP exposure were confirmed by flow cytometry and RNA-Seq analysis. The roles of sialic acid-binding, Ig-like lectin F (SiglecF)-positive neutrophils were further evaluated by adoptive transfer experiment and in vitro functional studies. RESULTS DEP exposure induced a unique population of lung granulocytes that coexpressed Ly6G and SiglecF. These cells differed phenotypically, morphologically, functionally, and transcriptionally from other SiglecF-expressing cells in the lungs. Our findings with murine models suggest that intratracheal challenge with DEPs induces the local release of adenosine triphosphate, which is a damage-associated molecular pattern signal. Adenosine triphosphate promotes the expression of SiglecF on neutrophils, and these SiglecF+ neutrophils worsen type 2 and 3 airway inflammation by producing high levels of cysteinyl leukotrienes and neutrophil extracellular traps. We also found Siglec8- (which corresponds to murine SiglecF) expressing neutrophils, and we found it in patients with asthma-chronic obstructive pulmonary disease overlap. CONCLUSION The SiglecF+ neutrophil is a novel and critical player in airway inflammation and targeting this population could reverse or ameliorate asthma.
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Affiliation(s)
- Jae Woo Shin
- Laboratory of Mucosal Immunology in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jihyun Kim
- Laboratory of Mucosal Immunology in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seokjin Ham
- Department of Life Sciences and Division of Integrative Biosciences & Biotechnology, Pohang University of Science & Technology (POSTECH), Pohang, Republic of Korea
| | - Sun Mi Choi
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Chang-Hoon Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jung Chan Lee
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ji Hyung Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Sang-Heon Cho
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Ryun Kang
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - You-Me Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Doo Hyun Chung
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Immune Regulation in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yeonseok Chung
- Laboratory of Immune Regulation, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Yoe-Sik Bae
- Department of Biological Sciences, SRC Center for Immune Research on Non-lymphoid Organs, Sungkyunkwan University, Suwon, Republic of Korea; Department of Biological Sciences, Sungkyunkwan University, Suwon, Republic of Korea
| | - Yong-Soo Bae
- Department of Biological Sciences, SRC Center for Immune Research on Non-lymphoid Organs, Sungkyunkwan University, Suwon, Republic of Korea; Department of Biological Sciences, Sungkyunkwan University, Suwon, Republic of Korea
| | - Tae-Young Roh
- Department of Life Sciences and Division of Integrative Biosciences & Biotechnology, Pohang University of Science & Technology (POSTECH), Pohang, Republic of Korea; SysGenLab Inc, Pohang, Republic of Korea
| | - Taesoo Kim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Hye Young Kim
- Laboratory of Mucosal Immunology in Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea.
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12
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Oxidative Stress Promotes Corticosteroid Insensitivity in Asthma and COPD. Antioxidants (Basel) 2021; 10:antiox10091335. [PMID: 34572965 PMCID: PMC8471691 DOI: 10.3390/antiox10091335] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 02/06/2023] Open
Abstract
Corticosteroid insensitivity is a key characteristic of patients with severe asthma and COPD. These individuals experience greater pulmonary oxidative stress and inflammation, which contribute to diminished lung function and frequent exacerbations despite the often and prolonged use of systemic, high dose corticosteroids. Reactive oxygen and nitrogen species (RONS) promote corticosteroid insensitivity by disrupting glucocorticoid receptor (GR) signaling, leading to the sustained activation of pro-inflammatory pathways in immune and airway structural cells. Studies in asthma and COPD models suggest that corticosteroids need a balanced redox environment to be effective and to reduce airway inflammation. In this review, we discuss how oxidative stress contributes to corticosteroid insensitivity and the importance of optimizing endogenous antioxidant responses to enhance corticosteroid sensitivity. Future studies should aim to identify how antioxidant-based therapies can complement corticosteroids to reduce the need for prolonged high dose regimens in patients with severe asthma and COPD.
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13
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Schikowski T. Indoor and Outdoor Pollution as Risk Factor for Allergic Diseases of the Skin and Lungs. Handb Exp Pharmacol 2021; 268:359-366. [PMID: 34159483 DOI: 10.1007/164_2021_503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Air pollution is worldwide a major public health problem and affects large part of the population. Air pollution does not only harm the respiratory tract system but also the other organs of the body. The damage may result directly from the pollutants toxicity, because the pollutant enters into the organs through a direct route or indirectly through systemic inflammation. There is accumulating evidence suggesting that ambient air pollution not only affects the human lung and the cardiovascular system, but also has negative effects on allergic diseases. In this regard, it has been shown that exposure increases the risk of allergies and eczema in children and adults. However, the mechanism how ambient air pollution affects the skin is not well investigated up to now and needs further research.
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Affiliation(s)
- Tamara Schikowski
- IUF - Leibniz Institut für Umweltmedizinische Forschung gGmbH, Düsseldorf, Germany.
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14
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Zhang S, He Y, Liang H, Gao J, Li Y, Li Y, Wang L, Xie X, Sun M, Yuan C, Ma Y. Higher environmental composite quality index score and risk of asthma and allergy in Northeast China. Allergy 2021; 76:1875-1879. [PMID: 33247966 DOI: 10.1111/all.14672] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/13/2020] [Accepted: 11/18/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Shen Zhang
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Yu He
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Hong Liang
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Jie Gao
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Yinbang Li
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Yahong Li
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Lining Wang
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Xili Xie
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Ming Sun
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
| | - Changzheng Yuan
- Department of Big Data and Health Science School of Public Health Zhejiang University School of Medicine Hangzhou China
| | - Yanan Ma
- Department of Biostatistics and Epidemiology School of Public Health China Medical University Shenyang China
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15
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Abstract
Ambient air pollution is produced by sources including vehicular traffic, coal-fired power plants, hydraulic fracturing, agricultural production, and forest fires. It consists of primary pollutants generated by combustion and secondary pollutants formed in the atmosphere from precursor gases. Air pollution causes and exacerbates climate change, and climate change worsens health effects of air pollution. Infants and children are uniquely sensitive to air pollution, because their organs are developing and they have higher air per body weight intake. Health effects linked to air pollution include not only exacerbations of respiratory diseases but also reduced lung function development and increased asthma incidence. Additional outcomes of concern include preterm birth, low birth weight, neurodevelopmental disorders, IQ loss, pediatric cancers, and increased risks for adult chronic diseases. These effects are mediated by oxidative stress, chronic inflammation, endocrine disruption, and genetic and epigenetic mechanisms across the life span. Natural experiments demonstrate that with initiatives such as increased use of public transportation, both air quality and community health improve. Similarly, the Clean Air Act has improved air quality, although exposure inequities persist. Other effective strategies for reducing air pollution include ending reliance on coal, oil, and gas; regulating industrial emissions; reducing exposure with attention to proximity of residences, schools, and child care facilities to traffic; and a greater awareness of the Air Quality Index. This policy reviews both short- and long-term health consequences of ambient air pollution, especially in relation to developmental exposures. It examines individual, community, and legislative strategies to mitigate air pollution.
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Affiliation(s)
- Heather L Brumberg
- Division of Neonatology, Maria Fareri Children's Hospital, Westchester Medical Center and Departments of Pediatrics and Public Health, New York Medical College, Valhalla, New York; and
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16
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Hao S, Yuan F, Pang P, Yang B, Jiang X, Yan A. Early childhood traffic-related air pollution and risk of allergic rhinitis at 2-4 years of age modification by family stress and male gender: a case-control study in Shenyang, China. Environ Health Prev Med 2021; 26:48. [PMID: 33865319 PMCID: PMC8053259 DOI: 10.1186/s12199-021-00969-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 04/04/2021] [Indexed: 01/12/2023] Open
Abstract
Background Few studies have explored the modifications by family stress and male gender in the relationship between early exposure to traffic-related air pollution (TRAP) and allergic rhinitis (AR) risk in preschool children. Methods We conducted a case-control study of 388 children aged 2–4 years in Shenyang, China. These children AR were diagnosed by clinicians. By using measured concentrations from monitoring stations, we estimated the exposures of particulate matter less than 10 μm in diameter (PM10), nitrogen dioxide (NO2), ozone (O3), carbon monoxide (CO), and sulfur dioxide (SO2) in preschool children aged 2–4 years. After adjusted potential confounding factors, we used logistic regression model to evaluate the odds ratio (OR) and 95% confidence interval (CI) for childhood AR with exposure to different air pollutants according to the increasing of the interquartile range (IQR) in the exposure level. Results The prevalence of AR in children aged 2–4 years (6.4%) was related to early TRAP exposure. With an IQR (20 μg/m3) increase in PM10 levels, an adjusted OR was significantly elevated by 1.70 (95% CI, 1.19 to 2.66). Also, with an IQR (18 μg/m3) increase in NO2, an elevated adjusted OR was 1.85 (95% CI, 1.52 to 3.18). Among children with family stress and boys, PM10 and NO2 were positively related to AR symptoms. No significant association was found among children without family stress and girls. Conclusions Family stress and male gender may increase the risk of AR in preschool children with early exposure to PM10 and NO2.
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Affiliation(s)
- Shuai Hao
- Department of Otolaryngology, First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110001, China.
| | - Fang Yuan
- Department of Otolaryngology, First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Pai Pang
- Department of Otolaryngology, First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Bo Yang
- Department of Otolaryngology, First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Xuejun Jiang
- Department of Otolaryngology, First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110001, China
| | - Aihui Yan
- Department of Otolaryngology, First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110001, China.
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17
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Abstract
Purpose for Review Since the coronavirus SARS-CoV-2 outbreak in China in late 2019 turned into a global pandemic, numerous studies have reported associations between environmental factors, such as weather conditions and a range of air pollutants (particulate matter, nitrogen dioxide, ozone, etc.) and the first wave of COVID-19 cases. This review aims to offer a critical assessment of the role of environmental exposure risk factors on SARS-CoV-2 infections and COVID-19 disease severity. Recent Findings In this review, we provide a critical assessment of COVID-19 risk factors, identify gaps in our knowledge (e.g., indoor air pollution), and discuss methodological challenges of association and causation and the impact lockdowns had on air quality. In addition, we will draw attention to ethnic and socioeconomic factors driving viral transmission related to COVID-19. The complex role angiotensin-converting enzyme 2 (ACE2) plays in COVID-19 and future promising avenues of research are discussed. Summary To demonstrate causality, we stress the need for future epidemiologic studies integrating personal air pollution exposures, detailed clinical COVID-19 data, and a range of socioeconomic factors, as well as in vitro and in vivo mechanistic studies.
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18
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Tu Y, Williams GM, Cortés de Waterman AM, Toelle BG, Guo Y, Denison L, Babu GR, Yang BY, Dong GH, Jalaludin B, Marks GB, Knibbs LD. A national cross-sectional study of exposure to outdoor nitrogen dioxide and aeroallergen sensitization in Australian children aged 7-11 years. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 271:116330. [PMID: 33383426 DOI: 10.1016/j.envpol.2020.116330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
The prevalence of allergic diseases in Australian children is high, but few studies have assessed the potential role of outdoor air pollution in allergic sensitization. We investigated the association between outdoor air pollution and the prevalence of aeroallergen sensitization in a national cross-sectional study of Australian children aged 7-11 years. Children were recruited from 55 participating schools in 12 Australian cities during 2007-2008. Parents completed a detailed (70-item) questionnaire. Outdoor nitrogen dioxide (NO2), as a proxy for exposure to traffic-related emissions, was estimated using measurements from regulatory monitors near each school and a national land-use regression (LUR) model. Three averaging periods were assessed, using information on duration of residence at the address, including lifetime, previous (lifetime, excluding the last year), and recent (the last year only). The LUR model was used as an additional source of recent exposure estimates at school and home addresses. Skin prick tests (SPTs) were performed to measure sensitization to eight common aeroallergens. Multilevel logistic regression estimated the association between NO2 and sensitization (by individual allergens, indoor and outdoor allergens, and all allergens combined), after adjustment for individual- and area-level covariates. In total, 2226 children had a completed questionnaire and SPT. The prevalence of sensitization to any allergen was 44.4%. Sensitization to house dust mites (HDMs) was the most common (36.1%), while sensitization to Aspergillus was the least common (3.4%). Measured mean (±s.d.) NO2 exposure was between 9 (±2.9) ppb and 9.5 (±3.2) ppb, depending on the averaging period. An IQR (4 ppb) increase in measured previous NO2 exposure was associated with greater odds of sensitization to HDMs (OR: 1.21, 95% CI: 1.01-1.43, P = 0.035). We found evidence of an association between relatively low outdoor NO2 concentrations and sensitization to HDMs, but not other aeroallergens, in Australian children aged 7-11 years.
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Affiliation(s)
- Yanhui Tu
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, QLD, 4006, Australia
| | - Gail M Williams
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, QLD, 4006, Australia
| | | | - Brett G Toelle
- Woolcock Institute of Medical Research, The University of Sydney, NSW, 2006, Australia; Sydney Local Health District, Sydney, NSW, 2050, Australia
| | - Yuming Guo
- Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia; Department of Epidemiology and Biostatistics, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia
| | - Lyn Denison
- ERM Services Australia, Melbourne, VIC, 3000, Australia
| | - Giridhara R Babu
- Indian Institute of Public Health-Bangalore, Public Health Foundation of India, Bangalore, 560023, India
| | - Bo-Yi Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Guang-Hui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bin Jalaludin
- Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia; Population Health, South Western Sydney Local Health District, Liverpool, NSW, 2170, Australia; Ingham Institute, Liverpool, NSW, 2170, Australia
| | - Guy B Marks
- Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia; Woolcock Institute of Medical Research, The University of Sydney, NSW, 2006, Australia; South Western Sydney Clinical School, The University of New South Wales, Liverpool, NSW, 2170, Australia
| | - Luke D Knibbs
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, QLD, 4006, Australia; Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia.
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19
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Santos UDP, Arbex MA, Braga ALF, Mizutani RF, Cançado JED, Terra-Filho M, Chatkin JM. Environmental air pollution: respiratory effects. J Bras Pneumol 2021; 47:e20200267. [PMID: 33567063 PMCID: PMC7889311 DOI: 10.36416/1806-3756/e20200267] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 12/06/2020] [Indexed: 12/25/2022] Open
Abstract
Environmental air pollution is a major risk factor for morbidity and mortality worldwide. Environmental air pollution has a direct impact on human health, being responsible for an increase in the incidence of and number of deaths due to cardiopulmonary, neoplastic, and metabolic diseases; it also contributes to global warming and the consequent climate change associated with extreme events and environmental imbalances. In this review, we present articles that show the impact that exposure to different sources and types of air pollutants has on the respiratory system; we present the acute effects-such as increases in symptoms and in the number of emergency room visits, hospitalizations, and deaths-and the chronic effects-such as increases in the incidence of asthma, COPD, and lung cancer, as well as a rapid decline in lung function. The effects of air pollution in more susceptible populations and the effects associated with physical exercise in polluted environments are also presented and discussed. Finally, we present the major studies on the subject conducted in Brazil. Health care and disease prevention services should be aware of this important risk factor in order to counsel more susceptible individuals about protective measures that can facilitate their treatment, as well as promoting the adoption of environmental measures that contribute to the reduction of such emissions.
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Affiliation(s)
- Ubiratan de Paula Santos
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Marcos Abdo Arbex
- . Faculdade de Medicina, Universidade de Araraquara - UNIARA - Araraquara (SP) Brasil
- . Núcleo de Estudos em Epidemiologia Ambiental, Laboratório de Poluição Atmosférica Experimental - NEEA-LPAE - Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Alfésio Luis Ferreira Braga
- . Núcleo de Estudos em Epidemiologia Ambiental, Laboratório de Poluição Atmosférica Experimental - NEEA-LPAE - Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
- . Grupo de Avaliação de Exposição e Risco Ambiental, Programa de Pós-Graduação em Saúde Coletiva, Universidade Católica de Santos - UNISANTOS - Santos (SP) Brasil
| | - Rafael Futoshi Mizutani
- . Grupo de Doenças Respiratórias Ambientais, Ocupacionais e de Cessação de Tabagismo, Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | | | - Mário Terra-Filho
- . Departamento de Cardiopneumologia, Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - José Miguel Chatkin
- . Disciplina de Medicina Interna/Pneumologia, Escola de Medicina, Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS - Porto Alegre (RS), Brasil
- . Hospital São Lucas, Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS - Porto Alegre (RS), Brasil
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20
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Qian Q, Chowdhury BP, Sun Z, Lenberg J, Alam R, Vivier E, Gorska MM. Maternal diesel particle exposure promotes offspring asthma through NK cell-derived granzyme B. J Clin Invest 2021; 130:4133-4151. [PMID: 32407293 DOI: 10.1172/jci130324] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 04/29/2020] [Indexed: 12/31/2022] Open
Abstract
Mothers living near high-traffic roads before or during pregnancy are more likely to have children with asthma. Mechanisms are unknown. Using a mouse model, here we showed that maternal exposure to diesel exhaust particles (DEP) predisposed offspring to allergic airway disease (AAD, murine counterpart of human asthma) through programming of their NK cells; predisposition to AAD did not develop in DEP pups that lacked NK cells and was induced in normal pups receiving NK cells from WT DEP pups. DEP NK cells expressed GATA3 and cosecreted IL-13 and the killer protease granzyme B in response to allergen challenge. Extracellular granzyme B did not kill, but instead stimulated protease-activated receptor 2 (PAR2) to cooperate with IL-13 in the induction of IL-25 in airway epithelial cells. Through loss-of-function and reconstitution experiments in pups, we showed that NK cells and granzyme B were required for IL-25 induction and activation of the type 2 immune response and that IL-25 mediated NK cell effects on type 2 response and AAD. Finally, experiments using human cord blood and airway epithelial cells suggested that DEP might induce an identical pathway in humans. Collectively, we describe an NK cell-dependent endotype of AAD that emerged in early life as a result of maternal exposure to DEP.
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Affiliation(s)
- Qian Qian
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Bidisha Paul Chowdhury
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Zehua Sun
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Jerica Lenberg
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Rafeul Alam
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA.,Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eric Vivier
- Innate Pharma Research Labs, Innate Pharma, Marseille, France.,Centre d'Immunologie de Marseille-Luminy, CNRS, INSERM, Aix Marseille University, Marseille, France.,Service d'Immunologie, Marseille Immunopole, Hôpital de la Timone, Assistance Publique des Hôpitaux de Marseille, Marseille, France
| | - Magdalena M Gorska
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA.,Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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21
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Brandt EB, Bolcas PE, Ruff BP, Khurana Hershey GK. IL33 contributes to diesel pollution-mediated increase in experimental asthma severity. Allergy 2020; 75:2254-2266. [PMID: 31922608 DOI: 10.1111/all.14181] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 10/25/2019] [Accepted: 11/25/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Exposure to traffic pollution, notably diesel exhaust particles (DEP), increases risk for asthma and asthma exacerbations. The contribution of cytokines generated by stressed lung epithelial cells (IL25, IL33, TSLP) to DEP-induced asthma severity remains poorly understood. METHODS BALB/c mice were exposed intratracheally once to DEP or 9 times over 3-weeks to either saline, DEP, and/or house dust mite extract (HDM). Airway hyper-responsiveness (AHR), pulmonary inflammation, and T-cell subsets were assessed 24 hours after the last exposure in mice sufficient and deficient for the IL33 receptor ST2. RESULTS DEP exposure induces oxidative stress, IL6, neutrophils and pulmonary accumulation of IL33, but not IL25 or TSLP or other features of allergic disease. When mice are co-exposed to DEP and low doses of HDM, DEP increases IL33 lung levels and Th2 responses. ST2 deficiency partially protected mice from HDM + DEP induced AHR in association with decreased type 2 inflammation and lung levels of IL5+ IL17A+ co-producing T-cells. Upon in vitro HDM challenge of lung cells from HDM ± DEP exposed ST2-/- mice, secretion of IL5, IL13, IL6 and IL17A was abrogated by a mechanism involving IL33 signaling in both dendritic cells and T-cells. HDM + DEP exposed bone marrow derived dendritic cells and IL33 pulsed BMDC promote a mixed Th2/Th17 response that was dependent on ST2 expression by CD4+ T-cells. CONCLUSION IL33 contributes to DEP mediated increase in allergen-induced Th2 inflammation and AHR in a mouse model of severe steroid resistant asthma, potentially through the accumulation of pathogenic IL5+ IL17A+ CD4+ effector T-cells.
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Affiliation(s)
- Eric B. Brandt
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
| | - Paige E. Bolcas
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
| | - Brandy P. Ruff
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
| | - Gurjit K. Khurana Hershey
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
- Department of Pediatrics University of Cincinnati College of Medicine Cincinnati OH USA
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22
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van Zoest V, Hoek G, Osei F, Stein A. Bayesian analysis of the short-term association of NO 2 exposure with local burden of asthmatic symptoms in children. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137544. [PMID: 32145626 DOI: 10.1016/j.scitotenv.2020.137544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
Short-term exposure to air pollution has been associated with exacerbation of respiratory diseases such as asthma. Substantial heterogeneity in effect estimates has been observed between previous studies. This study aims to quantify the local burden of daily asthma symptoms in asthmatic children in a medium-sized city. Air pollution exposure was estimated using the nearest sensor in a fine resolution urban air quality sensor network in the city of Eindhoven, the Netherlands. Bayesian estimates of the exposure response function were obtained by updating a priori information from a meta-analysis with data from a panel study using a daily diary. Five children participated in the panel study, resulting in a total of 400 daily diary records. Positive associations between NO2 and lower respiratory symptoms and medication use were observed. The odds ratio for any lower respiratory symptoms was 1.07 (95% C.I. 0.92, 1.28) expressed per 10 μg m-3 for current day NO2 concentration, using data from the panel study only (uninformative prior). Odds ratios for dry cough and phlegm were close to unity. The pattern of associations agreed well with the updated meta-analysis. The meta-analytic random effects summary estimate was 1.05 (1.02, 1.07) for LRS. Credible intervals substantially narrowed when adding prior information from the meta-analysis. The odds ratio for lower respiratory symptoms with an informative prior was 1.06 (0.99, 1.14). Burden of disease maps showed a strong spatial variability in the number of asthmatic symptoms associated with ambient NO2 derived from a regression kriging model. In total, 70 cases of asthmatic symptoms can daily be associated with NO2 exposure in the city of Eindhoven. We conclude that Bayesian estimates are useful in estimation of specific local air pollution effect estimates and subsequent local burden of disease calculations. With the fine resolution air quality network, neighborhood-specific burden of asthmatic symptoms was assessed.
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Affiliation(s)
- Vera van Zoest
- Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, PO Box 217, 7500 AE Enschede, the Netherlands.
| | - Gerard Hoek
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, PO Box 80178, 3508 TD Utrecht, the Netherlands
| | - Frank Osei
- Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, PO Box 217, 7500 AE Enschede, the Netherlands
| | - Alfred Stein
- Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, PO Box 217, 7500 AE Enschede, the Netherlands
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23
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Min KD, Yi SJ, Kim HC, Leem JH, Kwon HJ, Hong S, Kim KS, Kim SY. Association between exposure to traffic-related air pollution and pediatric allergic diseases based on modeled air pollution concentrations and traffic measures in Seoul, Korea: a comparative analysis. Environ Health 2020; 19:6. [PMID: 31937319 PMCID: PMC6961284 DOI: 10.1186/s12940-020-0563-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 01/07/2020] [Indexed: 05/10/2023]
Abstract
BACKGROUND Pediatric allergic diseases are a major public health concern, and previous studies have suggested that exposure to traffic-related air pollution (TRAP) exposure is a risk factor. These studies have typically assessed TRAP exposure using traffic measures, such as distance to major roads, or by modeling air pollutant concentrations; however inconsistent associations with pediatric allergic diseases have often been found. Using road proximity and density, we previously found an association between TRAP and atopic eczema among approximately 15,000 children living in Seoul, Korea, heavily populated and highly polluted city in which traffic is a major emission source. We aimed to conduct a parallel analysis using modeled air pollution concentrations and thus examine the consistency of the association. Specifically, we examined the associations of individual-level annual-average concentrations of NO2, PM10, and PM2.5 with symptoms and diagnoses of three pediatric allergic diseases including asthma, allergic rhinitis, and atopic eczema. METHODS The study population included 14,614 children from the Seoul Atopy Friendly School Project Survey in Seoul, Korea, in 2010. To assess individual exposures to TRAP among these children, we predicted annual-average concentrations of NO2, PM10, and PM2.5 at the children's home addresses in 2010 using universal kriging and land use regression models along with regulatory air quality monitoring data and geographic characteristics. Then, we estimated odds ratios (ORs) of the three allergic diseases for interquartile increases in air pollution concentrations after adjusting for individual risk factors in mixed effects logistic regression. RESULTS Symptoms and diagnoses of atopic eczema symptoms showed an association with NO2 (OR = 1.07, 95% confidence interval = 1.02-1.13; 1.08, 1.03-1.14) and PM10 (1.06, 1.01-1.12; 1.07, 1.01-1.13). ORs of PM2.5 were positive but not statistically significant (1.01, 0.95-1.07; 1.04, 0.98-1.10). No association was found between asthma and allergic rhinitis, although PM2.5 showed a marginal association with allergic rhinitis. CONCLUSIONS Our consistent findings regarding the association between TRAP and the prevalence of atopic eczema using traffic measures and surrogate air pollutants suggested the effect of TRAP on children's health. Follow-up studies should elucidate the causal link, to support subsequent policy considerations and minimize adverse health effects in children.
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Affiliation(s)
- Kyung-Duk Min
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
- Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
| | - Seon-Ju Yi
- Institute of Endemic Diseases, Medical Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hwan-Cheol Kim
- Department of Occupational and Environmental Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Jong-Han Leem
- Department of Occupational and Environmental Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Ho-Jang Kwon
- Department of Preventive Medicine, Dankook University College of Medicine, Chungnam, Republic of Korea
| | - Soyoung Hong
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Kyoo Sang Kim
- Department of Environmental Health Research, Seoul Medical Center, Seoul, Republic of Korea
| | - Sun-Young Kim
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang-si, Gyeonggi-do Republic of Korea
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24
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Sachdeva K, Do DC, Zhang Y, Hu X, Chen J, Gao P. Environmental Exposures and Asthma Development: Autophagy, Mitophagy, and Cellular Senescence. Front Immunol 2019; 10:2787. [PMID: 31849968 PMCID: PMC6896909 DOI: 10.3389/fimmu.2019.02787] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/13/2019] [Indexed: 12/11/2022] Open
Abstract
Environmental pollutants and allergens induce oxidative stress and mitochondrial dysfunction, leading to key features of allergic asthma. Dysregulations in autophagy, mitophagy, and cellular senescence have been associated with environmental pollutant and allergen-induced oxidative stress, mitochondrial dysfunction, secretion of multiple inflammatory proteins, and subsequently development of asthma. Particularly, particulate matter 2.5 (PM2.5) has been reported to induce autophagy in the bronchial epithelial cells through activation of AMP-activated protein kinase (AMPK), drive mitophagy through activating PTEN-induced kinase 1(PINK1)/Parkin pathway, and induce cell cycle arrest and senescence. Intriguingly, allergens, including ovalbumin (OVA), Alternaria alternata, and cockroach allergen, have also been shown to induce autophagy through activation of different signaling pathways. Additionally, mitochondrial dysfunction can induce cell senescence due to excessive ROS production, which affects airway diseases. Although autophagy and senescence share similar properties, recent studies suggest that autophagy can either accelerate the development of senescence or prevent senescence. Thus, in this review, we evaluated the literature regarding the basic cellular processes, including autophagy, mitophagy, and cellular senescence, explored their molecular mechanisms in the regulation of the initiation and downstream signaling. Especially, we highlighted their involvement in environmental pollutant/allergen-induced major phenotypic changes of asthma such as airway inflammation and remodeling and reviewed novel and critical research areas for future studies. Ultimately, understanding the regulatory mechanisms of autophagy, mitophagy, and cellular senescence may allow for the development of new therapeutic targets for asthma.
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Affiliation(s)
- Karan Sachdeva
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Danh C. Do
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Yan Zhang
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Xinyue Hu
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Jingsi Chen
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Dermatology, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Peisong Gao
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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25
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Brandt EB, Bolcas PE, Ruff BP, Khurana Hershey GK. TSLP contributes to allergic airway inflammation induced by diesel exhaust particle exposure in an experimental model of severe asthma. Clin Exp Allergy 2019; 50:121-124. [PMID: 31610053 DOI: 10.1111/cea.13512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/09/2019] [Accepted: 10/08/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Eric B Brandt
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Paige E Bolcas
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Brandy P Ruff
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Gurjit K Khurana Hershey
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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26
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Quek YW, Chuang CY, Pan HH, Sun HL, Lue KH, Ku MS. Boys With Allergic Rhinitis Who Were Sensitized to Blomia tropicalis Are the Most Vulnerable to Air Pollutants. Am J Rhinol Allergy 2019; 33:730-736. [PMID: 31362518 DOI: 10.1177/1945892419865097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Yeak-Wun Quek
- Institute of Medicine, Chung Shan Medical University, Taichung.,School of Medicine, Chung Shan Medical University, Taichung.,Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung
| | - Chun-Yi Chuang
- School of Medicine, Chung Shan Medical University, Taichung.,Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung
| | - Hui-Hsien Pan
- Institute of Medicine, Chung Shan Medical University, Taichung.,School of Medicine, Chung Shan Medical University, Taichung.,Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung
| | - Hai-Lun Sun
- Institute of Medicine, Chung Shan Medical University, Taichung.,School of Medicine, Chung Shan Medical University, Taichung.,Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung
| | - Ko-Huang Lue
- Institute of Medicine, Chung Shan Medical University, Taichung.,School of Medicine, Chung Shan Medical University, Taichung.,Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung
| | - Min-Sho Ku
- Institute of Medicine, Chung Shan Medical University, Taichung.,School of Medicine, Chung Shan Medical University, Taichung.,Division of Allergy, Asthma and Rheumatology, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung
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27
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Norback D, Li T, Bai X, Li C, Zhao Z, Zhang X. Onset and remission of rhinitis among students in relation to the home and school environment-A cohort study from Northern China. INDOOR AIR 2019; 29:527-538. [PMID: 30985976 DOI: 10.1111/ina.12559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 03/05/2019] [Accepted: 04/10/2019] [Indexed: 06/09/2023]
Abstract
Few prospective studies exist on indoor and outdoor air pollution in relation to adolescent rhinitis. We studied associations between onset and remission of rhinitis among junior high school students in relation to the home and school environment. A 2-year questionnaire cohort study was performed among 1325 students (11-15 years) in eight schools in Taiyuan, Northern China. Climate and air pollution were measured by direct reading instruments and passive samplers inside and outside the schools at baseline. Associations were calculated by multilevel logistic regression. Two-year onset of rhinitis and weekly rhinitis were 26.7% and 13.1%, respectively. RH (P < 0.001), CO2 (P < 0.01) and PM10 (P < 0.01) in the classrooms, PM10 (P < 0.01) and NO2 (P < 0.05) outside the schools, and redecoration (OR = 2.25) and dampness/indoor mold at home (OR = 2.04) were associated with onset of weekly rhinitis. RH (P < 0.05) and CO2 (P < 0.05) in the classroom and dampness/indoor mold (OR = 0.67) and environmental tobacco smoke (ETS) at home (OR = 0.63) reduced remission of rhinitis. In conclusion, dampness/mold and chemical emissions from new materials at home can increase onset of rhinitis and ETS and dampness/mold can reduce the remission. PM10 , RH, CO2 , and NO2 at school can increase the onset, and RH and CO2 can reduce the remission of rhinitis.
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Affiliation(s)
- Dan Norback
- Institute of Environmental Science, Shanxi University, Taiyuan, China
- Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden
| | - Tian Li
- Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - Xu Bai
- Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - Chenghuan Li
- Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - Zhuohui Zhao
- School of Public Health, Fudan University, Shanghai, China
| | - Xin Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan, China
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28
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Burleson JD, Siniard D, Yadagiri VK, Chen X, Weirauch MT, Ruff BP, Brandt EB, Hershey GKK, Ji H. TET1 contributes to allergic airway inflammation and regulates interferon and aryl hydrocarbon receptor signaling pathways in bronchial epithelial cells. Sci Rep 2019; 9:7361. [PMID: 31089182 PMCID: PMC6517446 DOI: 10.1038/s41598-019-43767-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 05/01/2019] [Indexed: 01/10/2023] Open
Abstract
Previous studies have suggested a role for Tet1 in the pathogenesis of childhood asthma. However, how Tet1 contributes to asthma remains unknown. Here we used mice deficient for Tet1 in a well-established model of allergic airway inflammation and demonstrated that loss of Tet1 increased disease severity including airway hyperresponsiveness and lung eosinophilia. Increased expression of Muc5ac, Il13, Il33, Il17a, Egfr, and Tff2 were observed in HDM-challenged Tet1-deficient mice compared to Tet1+/+ littermates. Further, transcriptomic analysis of lung RNA followed by pathway and protein network analysis showed that the IFN signaling pathway was significantly upregulated and the aryl hydrocarbon receptor (AhR) pathway was significantly downregulated in HDM-challenged Tet1-/- mice. This transcriptional regulation of the IFN and AhR pathways by Tet1 was also present in human bronchial epithelial cells at base line and following HDM challenges. Genes in these pathways were further associated with changes in DNA methylation, predicted binding of transcriptional factors with relevant functions in their promoters, and the presence of histone marks generated by histone enzymes that are known to interact with Tet1. Collectively, our data suggest that Tet1 inhibits HDM-induced allergic airway inflammation by direct regulation of the IFN and AhR pathways.
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Affiliation(s)
- J D Burleson
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Dylan Siniard
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Pyrosequencing lab for genomic and epigenomic research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Veda K Yadagiri
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Xiaoting Chen
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Brandy P Ruff
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Eric B Brandt
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Gurjit K Khurana Hershey
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Hong Ji
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA. .,Pyrosequencing lab for genomic and epigenomic research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA. .,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA. .,Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA. .,California National Primate Research Center, Davis, CA, USA.
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29
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Brokamp C, Brandt EB, Ryan PH. Assessing exposure to outdoor air pollution for epidemiological studies: Model-based and personal sampling strategies. J Allergy Clin Immunol 2019; 143:2002-2006. [PMID: 31063735 DOI: 10.1016/j.jaci.2019.04.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 10/26/2022]
Abstract
Epidemiologic studies have found air pollution to be causally linked to respiratory health including the exacerbation and development of childhood asthma. Accurately characterizing exposure is paramount in these studies to ensure valid estimates of health effects. Here, we provide a brief overview of the evolution of air pollution exposure assessment ranging from the use of ground-based, single-site air monitoring stations for population-level estimates to recent advances in spatiotemporal models, which use advanced machine learning algorithms and satellite-based data to accurately estimate individual-level daily exposures at high spatial resolutions. In addition, we review recent advances in sensor technology that enable the use of personal monitoring in epidemiologic studies, long-considered the "holy grail" of air pollution exposure assessment. Finally, we highlight key advantages and uses of each approach including the generalizability and public health relevance of air pollution models and the accuracy of personal monitors that are useful to guide personalized prevention strategies. Investigators and clinicians interested in the effects of air pollution on allergic disease and asthma should carefully consider the pros and cons of each approach to guide their application in research and practice.
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Affiliation(s)
- Cole Brokamp
- Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio; Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Eric B Brandt
- Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio; Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Patrick H Ryan
- Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio; Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
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30
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Norbäck D, Lu C, Zhang Y, Li B, Zhao Z, Huang C, Zhang X, Qian H, Sun Y, Wang J, Liu W, Sundell J, Deng Q. Sources of indoor particulate matter (PM) and outdoor air pollution in China in relation to asthma, wheeze, rhinitis and eczema among pre-school children: Synergistic effects between antibiotics use and PM 10 and second hand smoke. ENVIRONMENT INTERNATIONAL 2019; 125:252-260. [PMID: 30731375 DOI: 10.1016/j.envint.2019.01.036] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/06/2019] [Accepted: 01/13/2019] [Indexed: 05/13/2023]
Abstract
We studied indoor sources of indoor particulate matter (PM), outdoor air pollution and antibiotic use in relation to asthma, rhinitis and eczema among pre-school children and investigated synergistic effects between PM and antibiotics use. Children (3-6y) from randomly selected day care centres in seven cities across China were included (n = 39,782). Data on ambient temperature and air pollution were collected from local monitoring stations. Data on indoor PM sources (ETS, burning of incense or mosquito coils and biomass for cooking), antibiotics use and health (doctor diagnosed asthma and rhinitis, lifetime eczema, current wheeze and current rhinitis) were assessed by a parental questionnaire. Associations were calculated by multilevel logistic regression. Asthma diagnosis was associated with outdoor temperature, NO2 and burning mosquito coils. Rhinitis diagnosis was associated with NO2, ETS, gas cooking and burning biomass for cooking. Lifetime eczema was associated with temperature, PM10, NO2, ETS, biomass cooking and burning mosquito coils. Burning incense was associated with current wheeze and current rhinitis. Children using antibiotics had more asthma, wheeze, rhinitis, and eczema. Excluding children with respiratory infections did not change associations with antibiotics use. Antibiotics use enhanced the effects of ETS and PM10 (a synergistic effect). In conclusion, a warmer climate, outdoor NO2 and PM10, ETS, gas cooking and burning biomass, incense and mosquito coils can increase the risk of asthma, wheeze, rhinitis and eczema among pre-school children in China. Antibiotics use is a risk factor for childhood asthma, wheeze, rhinitis and eczema and ETS and outdoor PM10 can enhance the effect.
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Affiliation(s)
- Dan Norbäck
- XiangYa School of Public Health, Central South University, Changsha, Hunan, China; Department of Medical Sciences, Uppsala University, Uppsala, Sweden; School of Energy Science and Engineering, Central South University, Changsha, Hunan, China.
| | - Chan Lu
- XiangYa School of Public Health, Central South University, Changsha, Hunan, China; School of Energy Science and Engineering, Central South University, Changsha, Hunan, China.
| | - Yinping Zhang
- School of Architecture, Tsinghua University, Beijing, China
| | - Baizhan Li
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing, China
| | - Zhuohui Zhao
- Department of Environmental Health, Fudan University, Shanghai, China
| | - Chen Huang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Xin Zhang
- Research Center for Environmental Science and Engineering, Shanxi University, Taiyuan, China
| | - Hua Qian
- School of Energy & Environment, Southeast University, Nanjing, China
| | - Yuexia Sun
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Juan Wang
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Wei Liu
- School of Architecture, Tsinghua University, Beijing, China
| | - Jan Sundell
- School of Energy Science and Engineering, Central South University, Changsha, Hunan, China; School of Architecture, Tsinghua University, Beijing, China; School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Qihong Deng
- XiangYa School of Public Health, Central South University, Changsha, Hunan, China; School of Energy Science and Engineering, Central South University, Changsha, Hunan, China.
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31
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School exposure and asthma. Ann Allergy Asthma Immunol 2019; 120:482-487. [PMID: 29407419 DOI: 10.1016/j.anai.2018.01.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/18/2018] [Accepted: 01/22/2018] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To provide a comprehensive overview of common school exposures and the association between school exposures and pediatric asthma morbidity. DATA SOURCES A comprehensive literature review was performed using PubMed. STUDY SELECTIONS Full-length, peer-reviewed studies published in English were considered for review. In vivo, in vitro, and animal studies were excluded. Studies of school exposure to cockroach, mouse, dust mite, dog, cat, molds, pollution, and endotoxin associated with asthma and asthma morbidity were considered. RESULTS The current literature establishes an association between school exposure and pediatric asthma morbidity. There is a need for ongoing research to evaluate the effects of school-based environmental interventions on asthma morbidity. CONCLUSION It is evident that the indoor school environment is a significant reservoir of allergens, molds, pollutants, and endotoxin and that there is an association between school exposure and pediatric asthma morbidity. School-based interventions have the potential for substantial individual, community, and public health benefit. It is important that researchers continue to study the health effects associated with school exposures and assess cost-effectiveness of multifaceted school-based interventions.
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32
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Xie ZJ, Guan K, Yin J. Advances in the clinical and mechanism research of pollen induced seasonal allergic asthma. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL IMMUNOLOGY 2019; 8:1-8. [PMID: 30899604 PMCID: PMC6420698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 08/30/2018] [Indexed: 06/09/2023]
Abstract
Seasonal allergic asthma prevalence has been increasing over the last decades and is one of global health concerns now. Pollen is one of the main reasons to cause seasonal allergic asthma and influenced by multiple risk factors. Thunderstorm-related asthma is a typical type of seasonal allergic asthma that thunderstorms occurring can induce severe asthma attacks during pollen season. The diagnosis of seasonal allergic asthma relies on precise medical history, skin prick tests (SPT) and specific IgE detection. Component resolved diagnosis is greatly significant in determining the complex situation. Allergen specific immunotherapy (AIT) is the only disease-modifying therapy that can change the natural course from seasonal allergic rhinitis to seasonal allergic asthma.
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Affiliation(s)
- Zhi-Juan Xie
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730, P.R. China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic DiseasesBeijing 100730, P.R. China
| | - Kai Guan
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730, P.R. China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic DiseasesBeijing 100730, P.R. China
| | - Jia Yin
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730, P.R. China
- Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic DiseasesBeijing 100730, P.R. China
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33
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Murrison LB, Brandt EB, Myers JB, Hershey GKK. Environmental exposures and mechanisms in allergy and asthma development. J Clin Invest 2019; 129:1504-1515. [PMID: 30741719 DOI: 10.1172/jci124612] [Citation(s) in RCA: 172] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Environmental exposures interplay with human host factors to promote the development and progression of allergic diseases. The worldwide prevalence of allergic disease is rising as a result of complex gene-environment interactions that shape the immune system and host response. Research shows an association between the rise of allergic diseases and increasingly modern Westernized lifestyles, which are characterized by increased urbanization, time spent indoors, and antibiotic usage. These environmental changes result in increased exposure to air and traffic pollution, fungi, infectious agents, tobacco smoke, and other early-life and lifelong risk factors for the development and exacerbation of asthma and allergic diseases. It is increasingly recognized that the timing, load, and route of allergen exposure affect allergic disease phenotypes and development. Still, our ability to prevent allergic diseases is hindered by gaps in understanding of the underlying mechanisms and interaction of environmental, viral, and allergen exposures with immune pathways that impact disease development. This Review highlights epidemiologic and mechanistic evidence linking environmental exposures to the development and exacerbation of allergic airway responses.
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Affiliation(s)
- Liza Bronner Murrison
- Division of Asthma Research, Cincinnati Children's Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Eric B Brandt
- Division of Asthma Research, Cincinnati Children's Medical Center, Cincinnati, Ohio, USA
| | - Jocelyn Biagini Myers
- Division of Asthma Research, Cincinnati Children's Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Gurjit K Khurana Hershey
- Division of Asthma Research, Cincinnati Children's Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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35
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Abstract
Abstract
Background
Air pollutants such as particulate matter (PM2.5) and nitrogen dioxide (NO2) in outdoor air have long been suspected of causing the development of asthma and allergic rhinitis. However, a variety of systematic reviews have reached different conclusions in the last 15 years on whether these air pollutants do in actual fact play a causal role in the onset of asthma, allergic rhinitis, and eczema.
Methods
Based on published systematic reviews and the most recent publications, the current state of knowledge on epidemiological evidence is presented and the potential for primary prevention of these allergic diseases by reducing or avoiding exposure to these air pollutants evaluated.
Results
Despite conducting an extensive literature search, analyzing the most recent results, and focusing on the birth cohort studies most relevant to the question in hand, epidemiological results do not adequately support the concept of a causal relationship between the two air pollutants in question, PM2.5 and NO2, and asthma. Epidemiological studies predominantly show no effect of these air pollutants on allergic sensitization and the onset of allergic rhinitis. The small number of studies that have investigated the link between air pollutants and eczema largely revealed there to be no link.
Conclusion
If the evidence for the causal role of air pollutants in the onset of allergies is inconclusive, one must assume that it is probably not possible to achieve primary prevention of allergies by improving air quality. However, there is sufficient evidence to show that air pollutants can trigger exacerbations of allergic diseases. This alone justifies ensuring that the existing threshold values for air pollutants are adhered to, in order to protect particularly allergy sufferers from health impairments.
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36
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Alfardan AS, Nadeem A, Ahmad SF, Al-Harbi NO, Al-Harbi MM, AlSharari SD. Plasticizer, di(2-ethylhexyl)phthalate (DEHP) enhances cockroach allergen extract-driven airway inflammation by enhancing pulmonary Th2 as well as Th17 immune responses in mice. ENVIRONMENTAL RESEARCH 2018; 164:327-339. [PMID: 29567418 DOI: 10.1016/j.envres.2018.02.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/01/2018] [Accepted: 02/28/2018] [Indexed: 06/08/2023]
Abstract
In recent decades, there has been a gradual increase in the prevalence of asthma. Various factors including environmental pollutants have contributed to this phenomenon. Plasticizer, di(2-ethylhexyl)phthalate (DEHP) is one of the commonest environmental pollutants due to its association with plastic products. DEHP gets released from plastic products easily leading to respiratory exposure in humans. As a consequence, DEHP is associated with allergic asthma in humans and animals. DEHP is reported to act as an adjuvant in ovalbumin-induced mouse models of asthma at high doses. However, these studies mostly looked into the role of DEHP on Th2 cytokines/eosinophilic inflammation without investigating the role of airway epithelial cells (AECs)/dendritic cells (DCs)/Th17 cells. Its adjuvant activity with natural allergens such as cockroach allergens at tolerable daily intake needs to be explored. Cockroach allergens and DEHP may be inhaled together due to their coexistence in work place as well as household environments. Therefore, effect of DEHP was assessed in cockroach allergens extract (CE)-induced mouse model of asthma. Airway inflammation, histopathology, mucus secretion, and immune responses related to Th2/Th17/DCs and AECs were assessed in mice with DEHP exposure alone and in combination with CE. Our study shows that DEHP converts CE-induced eosinophilic inflammation into mixed granulocytic inflammation by promoting Th2 as well as Th17 immune responses. This was probably due to downregulation of E-cadherin in AECs, and enhancement of costimulatory molecules (MHCII/CD86/CD40)/pro-inflammatory cytokines (IL-6/MCP-1) in DCs by DEHP. This suggests that DEHP facilitates development of mixed granulocytic airway inflammation in the presence of a natural allergen.
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Affiliation(s)
- Ali S Alfardan
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia.
| | - Sheikh F Ahmad
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Naif O Al-Harbi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Mohammad M Al-Harbi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Shakir D AlSharari
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
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Zhang X, Chen X, Weirauch MT, Zhang X, Burleson JD, Brandt EB, Ji H. Diesel exhaust and house dust mite allergen lead to common changes in the airway methylome and hydroxymethylome. ENVIRONMENTAL EPIGENETICS 2018; 4:dvy020. [PMID: 30090644 PMCID: PMC6063278 DOI: 10.1093/eep/dvy020] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/01/2018] [Accepted: 06/22/2018] [Indexed: 05/28/2023]
Abstract
Exposures to diesel exhaust particles (DEP) from traffic and house dust mite (HDM) allergens significantly increase risks of airway diseases, including asthma. This negative impact of DEP and HDM may in part be mediated by epigenetic mechanisms. Beyond functioning as a mechanical barrier, airway epithelial cells provide the first line of immune defense towards DEP and HDM exposures. To understand the epigenetic responses of airway epithelial cells to these exposures, we exposed human bronchial epithelial cells to DEP and HDM and studied genome-wide 5-methyl-cytosine (5mC) and 5-hydroxy-methylcytosine (5hmC) at base resolution. We found that exposures to DEP and HDM result in elevated TET1 and DNMT1 expression, associated with 5mC and 5hmC changes. Interestingly, over 20% of CpG sites are responsive to both exposures and changes in 5mC at these sites negatively correlated with gene expression differences. These 5mC and 5hmC changes are located in genes and pathways related to oxidative stress responses, epithelial function and immune cell responses and are enriched for binding sites of transcription factors (TFs) involved in these pathways. Histone marks associated with promoters, enhancers and actively transcribed gene bodies were associated with exposure-induced DNA methylation changes. Collectively, our data suggest that exposures to DEP and HDM alter 5mC and 5hmC levels at regulatory regions bound by TFs, which coordinate with histone marks to regulate gene networks of oxidative stress responses, epithelial function and immune cell responses. These observations provide novel insights into the epigenetic mechanisms that mediate the epithelial responses to DEP and HDM in airways.
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Affiliation(s)
- Xue Zhang
- Pyrosequencing Lab for Genomic and Epigenomic Research
- Division of Human Genetics
| | | | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology
- Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Xiang Zhang
- Genomics, Epigenomics and Sequencing Core, University of Cincinnati, Cincinnati, OH, USA
| | - J D Burleson
- Division of Asthma Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Eric B Brandt
- Division of Asthma Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Hong Ji
- Pyrosequencing Lab for Genomic and Epigenomic Research
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Asthma Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
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Norbäck D, Lu C, Wang J, Zhang Y, Li B, Zhao Z, Huang C, Zhang X, Qian H, Sun Y, Sundell J, Deng Q. Asthma and rhinitis among Chinese children - Indoor and outdoor air pollution and indicators of socioeconomic status (SES). ENVIRONMENT INTERNATIONAL 2018; 115:1-8. [PMID: 29529393 DOI: 10.1016/j.envint.2018.02.023] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 02/11/2018] [Accepted: 02/11/2018] [Indexed: 05/17/2023]
Abstract
BACKGROUND Few data exist on asthma and rhinitis across China in relation to indoor and outdoor air pollution, climate and socioeconomic factors. The main aim was to study associations between asthma, rhinitis and current respiratory symptoms among pre-school children across China and selected indoor and outdoor exposure and indicators of socio-economic status (SES) in mutually adjusted models. METHODS Chinese children (3-6 yr.) (n = 39,782) were recruited from randomly selected day care centres in seven cities in China. Data on asthma, respiratory symptoms, rhinitis, indoor and outdoor exposure at home and SES were assessed by a parentally administered questionnaire. Lifetime mean ambient temperature, PM10, NO2, and GDP per capita on city level were calculated. RESULTS Totally 7.4% had ever doctors' diagnosed (DD) asthma and 8.7% DD-rhinitis, 19.7% had current wheeze, 45.0% rhinitis and 16.9% cough. DD-asthma was associated with ambient temperature (OR = 1.15, 95% CI 1.11-1.20 per °C), NO2 (OR = 1.16, 95% CI 1.02-1.33 per 10 μg/m3), indoor mould/dampness (OR = 1.25, 95% CI 1.13-1.39) and living near major roads (OR = 1.13, 95% CI 1.02-1.25). DD-rhinitis was associated with ambient temperature (OR = 1.07, 95% CI 1.05-1.10 per °C), NO2 (OR = 1.20, 95% CI 1.09-1.32 per 10 μg/m3), GDP (OR = 1.03, 95% CI 1.01-1.06 per 10,000 RenMinBi/year), indoor mould/dampness (OR = 1.23, 95% CI 1.11-1.35), passive smoking (OR = 1.11, 95% CI 1.01-1.21), and living near major roads (OR = 1.14, 95% CI 1.03-1.25). Children in suburban or rural areas, in larger families (≥5 persons) and with prenatal farm exposure had less DD-asthma and DD-rhinitis. CONCLUSIONS Economic development level of the city, higher SES, ambient temperature, NO2, PM10, traffic air pollution and mould/dampness can be risk factors for asthma and rhinitis and respiratory symptoms among pre-school children in China. Breastfeeding, large family size and early-life farm exposure could be protective factors.
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Affiliation(s)
- Dan Norbäck
- School of Energy Science and Engineering, Central South University, Changsha, Hunan, China; Department of Medical Sciences, Uppsala University, Uppsala, Sweden.
| | - Chan Lu
- School of Energy Science and Engineering, Central South University, Changsha, Hunan, China
| | - Juan Wang
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden; Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing, China
| | - Yinping Zhang
- School of Architecture, Tsinghua University, Beijing, China
| | - Baizhan Li
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing, China
| | - Zhuohui Zhao
- Department of Environmental Health, Fudan University, Shanghai, China
| | - Chen Huang
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Xin Zhang
- Research Center for Environmental Science and Engineering, Shanxi University, Taiyuan, China
| | - Hua Qian
- School of Energy & Environment, Southeast University, Nanjing, China
| | - Yuexia Sun
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Jan Sundell
- School of Architecture, Tsinghua University, Beijing, China; School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Qihong Deng
- School of Energy Science and Engineering, Central South University, Changsha, Hunan, China; XiangYa School of Public Health, Central South University, Changsha, Hunan, China.
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Naja AS, Permaul P, Phipatanakul W. Taming Asthma in School-Aged Children: A Comprehensive Review. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2018; 6:726-735. [PMID: 29747980 PMCID: PMC5953205 DOI: 10.1016/j.jaip.2018.01.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 12/14/2022]
Abstract
Asthma is the most common chronic disease of childhood and the leading cause of childhood morbidity as measured by school absences, emergency department visits, and hospitalizations. Multiple factors play a role in the development, treatment and prevention of childhood asthma including racial/ethnic and socioeconomic disparities, both the home and school environments, and medication use. The goals of this review are to summarize these aspects of asthma in school-aged children and to present an updated review of medications as it relates to treatment strategies that will help in the care of these children. We conclude that phenotypic heterogeneity and appropriate environmental assessments and interventions are important considerations in the management of childhood asthma.
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Affiliation(s)
- Ahmad Salaheddine Naja
- Division of Allergy and Immunology, Boston Children's Hospital, Boston, Mass; Lebanese American University, Beirut, Lebanon
| | - Perdita Permaul
- Harvard Medical School, Boston, Mass; Division of Pediatric Allergy and Immunology, Massachusetts General Hospital for Children, Boston, Mass
| | - Wanda Phipatanakul
- Division of Allergy and Immunology, Boston Children's Hospital, Boston, Mass; Harvard Medical School, Boston, Mass.
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40
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Xia M, Harb H, Saffari A, Sioutas C, Chatila TA. A Jagged 1-Notch 4 molecular switch mediates airway inflammation induced by ultrafine particles. J Allergy Clin Immunol 2018; 142:1243-1256.e17. [PMID: 29627423 DOI: 10.1016/j.jaci.2018.03.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 03/14/2018] [Accepted: 03/23/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Exposure to traffic-related particulate matter promotes asthma and allergic diseases. However, the precise cellular and molecular mechanisms by which particulate matter exposure acts to mediate these effects remain unclear. OBJECTIVE We sought to elucidate the cellular targets and signaling pathways critical for augmentation of allergic airway inflammation induced by ambient ultrafine particles (UFP). METHODS We used in vitro cell-culture assays with lung-derived antigen-presenting cells and allergen-specific T cells and in vivo mouse models of allergic airway inflammation with myeloid lineage-specific gene deletions, cellular reconstitution approaches, and antibody inhibition studies. RESULTS We identified lung alveolar macrophages (AM) as the key cellular target of UFP in promoting airway inflammation. Aryl hydrocarbon receptor-dependent induction of Jagged 1 (Jag1) expression in AM was necessary and sufficient for augmentation of allergic airway inflammation by UFP. UFP promoted TH2 and TH17 cell differentiation of allergen-specific T cells in a Jag1- and Notch 4-dependent manner. Treatment of mice with an anti-Notch 4 antibody abrogated exacerbation of allergic airway inflammation induced by UFP. CONCLUSION UFP exacerbate allergic airway inflammation by promoting a Jag1-Notch 4-dependent interaction between AM and allergen-specific T cells, leading to augmented TH cell differentiation.
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Affiliation(s)
- Mingcan Xia
- Division of Immunology, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Hani Harb
- Division of Immunology, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Mass
| | - Arian Saffari
- Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, Calif
| | - Constantinos Sioutas
- Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, Calif
| | - Talal A Chatila
- Division of Immunology, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Mass.
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41
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Bowatte G, Lodge CJ, Knibbs LD, Erbas B, Perret JL, Jalaludin B, Morgan GG, Bui DS, Giles GG, Hamilton GS, Wood-Baker R, Thomas P, Thompson BR, Matheson MC, Abramson MJ, Walters EH, Dharmage SC. Traffic related air pollution and development and persistence of asthma and low lung function. ENVIRONMENT INTERNATIONAL 2018; 113:170-176. [PMID: 29427878 DOI: 10.1016/j.envint.2018.01.028] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/12/2018] [Accepted: 01/28/2018] [Indexed: 05/24/2023]
Abstract
BACKGROUND AND AIMS Traffic Related Air Pollution (TRAP) exposure is known to exacerbate existing respiratory diseases. We investigated longer term effects of TRAP exposure for individuals with or without existing asthma, and with or without lower lung function. METHODS Associations between TRAP exposure and asthma (n = 689) and lung function (n = 599) were investigated in the prospective Tasmanian Longitudinal Health Study (TAHS). TRAP exposure at age 45 years was measured using two methods based on residential address: mean annual NO2 exposure; and distance to nearest major road. Adjusted multinomial logistic regression was used to model the association between exposure to TRAP at 45 years and changes in asthma and lung function, using three follow ups of TAHS (45, 50 and 53 years). RESULTS For those who never had asthma by 45, living <200 m from a major road was associated with increased odds of new asthma that persisted from 50 to 53 years (adjusted Odds Ratio [aOR] 5.20; 95% CI 1.07, 25.4). Asthmatic participants at 45 had an increased risk of persistent asthma up to 53 years if they were living <200 m from a major road, compared with asthmatic participants living >200 m from a major road (aOR = 5.21; 95% CI 1.54, 17.6). CONCLUSION For middle aged adults, living <200 m for a major road (a marker of TRAP exposure) influences both the development and persistence of asthma. These findings have public health implications for asthma prevention strategies in primary and secondary settings.
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Affiliation(s)
- Gayan Bowatte
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia; National Institute of Fundamental Studies, Kandy, Sri Lanka
| | - Caroline J Lodge
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia
| | - Luke D Knibbs
- School of Public Health, The University of Queensland, Brisbane, Australia
| | - Bircan Erbas
- School of Psychology & Public Health, Department of Public Health, Latrobe University, Melbourne, Australia
| | - Jennifer L Perret
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia
| | - Bin Jalaludin
- Health People and Places Unit, South Western Sydney Local Health District, New South Wales, Sydney, Australia
| | - Geoffrey G Morgan
- University Centre for Rural Health, School of Public Health, University of Sydney, New South Wales, Sydney, Australia
| | - Dinh S Bui
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia
| | - Graham G Giles
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia; Cancer Epidemiology Center, Cancer Council Victoria, Melbourne, Australia; School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - Garun S Hamilton
- Monash Lung and Sleep, Monash Health, Melbourne, Australia; School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Richard Wood-Baker
- School of Medicine, University of Tasmania Medical School, Hobart, Australia
| | - Paul Thomas
- POWHCS & IIRC, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Bruce R Thompson
- Allergy Immunology and Respiratory Medicine, Alfred Health, Central Clinical School, Monash University, Melbourne, Australia
| | - Melanie C Matheson
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia
| | - Michael J Abramson
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - E Haydn Walters
- NHMRC CRE, University of Tasmania Medical School, Hobart, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia; Murdoch Childrens Research Institute, Melbourne, Australia.
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Abstract
The growth and maturity of the peripheral immune system and subsequent development of pulmonary immunity in early life is dictated by host, environmental and microbial factors. Dysregulation during the critical window of immune development in the postnatal years results in disease which impacts on lifelong lung health. Asthma is a common disease in childhood and is often preceded by wheezing illnesses during the preschool years. However, the mechanisms underlying development of wheeze and how and why only some children progress to asthma is unknown. Human studies to date have generally focused on peripheral immune development, with little assessment of local tissue pathology in young children. Moreover, mechanisms underlying the interactions between inflammation and tissue repair at mucosal surfaces in early life remain unknown. Disappointingly, mechanistic studies in mice have predominantly used adult models. This review will consider the aspects of the neonatal immune system which might contribute to the development of early life wheezing disorders and asthma, and discuss the external environmental factors which may influence this process.
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Affiliation(s)
- Clare M Lloyd
- Inflammation, Repair & Development Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College, London, UK
| | - Sejal Saglani
- Inflammation, Repair & Development Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College, London, UK.,Department of Paediatric Respiratory Medicine, Royal Brompton Hospital, Royal Brompton Harefield NHS Foundation Trust, London, UK
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Permaul P, Phipatanakul W. School Environmental Intervention Programs. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2018; 6:22-29. [PMID: 29310758 PMCID: PMC5773264 DOI: 10.1016/j.jaip.2017.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/29/2017] [Accepted: 10/03/2017] [Indexed: 12/30/2022]
Abstract
Exposure to indoor allergens and pollutants plays a significant part in the development of asthma and its associated morbidity. Inner-city children with asthma are disproportionately affected by these exposures with increased asthma morbidity. Although years of previous research have linked exposures in the urban home environment with significant childhood asthma disease, many of these allergens are also present in inner-city school environments. Therefore, evaluation of the school environment of patients with asthma is also essential. School-based environmental interventions may offer benefit for this problem and has the potential to help many children with asthma at once in a cost-effective manner. It is important that environmental health researchers continue to assess which interventions are most practical and result in the greatest measurable improvements.
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Affiliation(s)
- Perdita Permaul
- Division of Pediatric Allergy and Immunology, Massachusetts General Hospital for Children, Boston, Mass; Harvard Medical School, Boston, Mass
| | - Wanda Phipatanakul
- Harvard Medical School, Boston, Mass; Division of Allergy and Immunology, Boston Children's Hospital, Boston, Mass.
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Association between Exposure to Traffic-Related Air Pollution and Prevalence of Allergic Diseases in Children, Seoul, Korea. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4216107. [PMID: 29057259 PMCID: PMC5615949 DOI: 10.1155/2017/4216107] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 07/08/2017] [Accepted: 07/27/2017] [Indexed: 12/03/2022]
Abstract
Although there has been suggestive evidence of the association between TRAP and ADs, findings remained inconsistent possibly due to limited population. We investigated the association between TRAP and ADs in a large population of children with rich spatial coverage and expanded age span in Seoul, Korea. TRAP exposures were estimated by categorized proximity to the nearest major road (≤150, 150–300, 300–500, and >500 m) and density of major roads within 300 meters from children's residences. We estimated the association between two TRAP exposures and three ADs using generalized mixed model after adjusting for individual characteristics. We also investigated whether the association varied by household and regional socioeconomic status. We found associations of atopic eczema with road density [OR = 1.08; 95% CI = 1.01–1.15] and road proximity [1.15, 1.01–1.32; 1.17, 1.03–1.34; and 1.16, 1.01–1.34 for ≤150, 150–300, and 300–500 m, resp., compared to >500 m]. There was no association with asthma and allergic rhinitis. Effect estimates were generally the highest in the low socioeconomic region. Children living in areas surrounded by large and busy roads were likely to be at greater risks for atopic eczema, with increased vulnerability when living in deprived areas.
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45
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Himly M, Mills-Goodlet R, Geppert M, Duschl A. Nanomaterials in the Context of Type 2 Immune Responses-Fears and Potentials. Front Immunol 2017; 8:471. [PMID: 28487697 PMCID: PMC5403887 DOI: 10.3389/fimmu.2017.00471] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/05/2017] [Indexed: 01/07/2023] Open
Abstract
The type 2 immune response is an adaptive immune program involved in defense against parasites, detoxification, and wound healing, but is predominantly known for its pathophysiological effects, manifesting as allergic disease. Engineered nanoparticles (NPs) are non-self entities that, to our knowledge, do not stimulate detrimental type 2 responses directly, but have the potential to modulate ongoing reactions in various ways, including the delivery of substances aiming at providing a therapeutic benefit. We review, here, the state of knowledge concerning the interaction of NPs with type 2 immune responses and highlight their potential as a multifunctional platform for therapeutic intervention.
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Affiliation(s)
- Martin Himly
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Robert Mills-Goodlet
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Mark Geppert
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Albert Duschl
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
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46
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Bowatte G, Lodge CJ, Knibbs LD, Lowe AJ, Erbas B, Dennekamp M, Marks GB, Giles G, Morrison S, Thompson B, Thomas PS, Hui J, Perret JL, Abramson MJ, Walters H, Matheson MC, Dharmage SC. Traffic-related air pollution exposure is associated with allergic sensitization, asthma, and poor lung function in middle age. J Allergy Clin Immunol 2016; 139:122-129.e1. [PMID: 27372567 DOI: 10.1016/j.jaci.2016.05.008] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 05/04/2016] [Accepted: 05/16/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Traffic-related air pollution (TRAP) exposure is associated with allergic airway diseases and reduced lung function in children, but evidence concerning adults, especially in low-pollution settings, is scarce and inconsistent. OBJECTIVES We sought to determine whether exposure to TRAP in middle age is associated with allergic sensitization, current asthma, and reduced lung function in adults, and whether these associations are modified by variants in Glutathione S-Transferase genes. METHODS The study sample comprised the proband 2002 laboratory study of the Tasmanian Longitudinal Health Study. Mean annual residential nitrogen dioxide (NO2) exposure was estimated for current residential addresses using a validated land-use regression model. Associations between TRAP exposure and allergic sensitization, lung function, current wheeze, and asthma (n = 1405) were investigated using regression models. RESULTS Increased mean annual NO2 exposure was associated with increased risk of atopy (adjusted odds ratio [aOR], 1.14; 95% CI, 1.02-1.28 per 1 interquartile range increase in NO2 [2.2 ppb]) and current wheeze (aOR, 1.14; 1.02-1.28). Similarly, living less than 200 m from a major road was associated with current wheeze (aOR, 1.38; 95% CI, 1.06-1.80) and atopy (aOR, 1.26; 95% CI, 0.99-1.62), and was also associated with having significantly lower prebronchodilator and postbronchodilator FEV1 and prebronchodilator forced expiratory flow at 25% to 75% of forced vital capacity. We found evidence of interactions between living less than 200 m from a major road and GSTT1 polymorphism for atopy, asthma, and atopic asthma. Overall, carriers of the GSTT1 null genotype had an increased risk of asthma and allergic outcomes if exposed to TRAP. CONCLUSIONS Even relatively low TRAP exposures confer an increased risk of adverse respiratory and allergic outcomes in genetically susceptible individuals.
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Affiliation(s)
- Gayan Bowatte
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, the University of Melbourne, Melbourne, Australia
| | - Caroline J Lodge
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, the University of Melbourne, Melbourne, Australia
| | - Luke D Knibbs
- School of Public Health, the University of Queensland, Brisbane, Australia
| | - Adrian J Lowe
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, the University of Melbourne, Melbourne, Australia
| | - Bircan Erbas
- School of Psychology & Public Health, Department of Public Health, La Trobe University, Melbourne, Australia
| | - Martine Dennekamp
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - Guy B Marks
- Woolcock Institute of Medical Research, The University of Sydney, Sydney, Australia; South Western Sydney Clinical School, University of New South Wales, Sydney, Australia
| | - Graham Giles
- Cancer Epidemiology Centre, the Cancer Council Victoria, Melbourne, Australia
| | | | | | - Paul S Thomas
- Inflammation and Infection Research Centre, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Jennie Hui
- Busselton Population Medical Research Institute, Perth, Australia; School of Population Health, the University of Western Australia, Perth, Australia; School of Pathology and Laboratory Medicine, the University of Western Australia, Perth, Australia; PathWest Laboratory Medicine of WA, Sir Charles Gairdner Hospital, Perth, Australia
| | - Jennifer L Perret
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, the University of Melbourne, Melbourne, Australia
| | - Michael J Abramson
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - Haydn Walters
- NHMRC CRE, University of Tasmania Medical School, Hobart, Australia
| | - Melanie C Matheson
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, the University of Melbourne, Melbourne, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, the University of Melbourne, Melbourne, Australia; Murdoch Childrens Research Institute, Melbourne, Australia.
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Affiliation(s)
- Young Yoo
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
- Environmental Health Center, Korea University Anam Hospital, Seoul, Korea
- Allergy Immunology Center, Korea University, Seoul, Korea
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