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Venkatesan S, Zare A, Stevanovic S. Pollen and sub-pollen particles: External interactions shaping the allergic potential of pollen. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171593. [PMID: 38479525 DOI: 10.1016/j.scitotenv.2024.171593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/29/2024] [Accepted: 03/07/2024] [Indexed: 03/25/2024]
Abstract
Pollen allergies, such as allergic rhinitis, are triggered by exposure to airborne pollen. They are a considerable global health burden, with their numbers expected to rise in the coming decades due to the advent of climate change and air pollution. The relationships that exist between pollens, meteorological, and environmental conditions are complex due to a lack of clarity on the nature and conditions associated with these interactions; therefore, it is challenging to describe their direct impacts on allergenic potential clearly. This article attempts to review evidence pertaining to the possible influence of meteorological factors and air pollutants on the allergic potential of pollen by studying the interactions that pollen undergoes, from its inception to atmospheric traversal to human exposure. This study classifies the evidence based on the nature of these interactions as physical, chemical, source, and biological, thereby simplifying the complexities in describing these interactions. Physical conditions facilitating pollen rupturing for tree, grass, and weed pollen, along with their mechanisms, are studied. The effects of pollen exposure to air pollutants and their impact on pollen allergenic potential are presented along with the possible outcomes following these interactions, such as pollen fragmentation (SPP generation), deposition of particulate matter on pollen exine, and modification of protein levels in-situ of pollen. This study also delves into evidence on plant-based (source and biological) interactions, which could indirectly influence the allergic potential of pollen. The current state of knowledge, open questions, and a brief overview of future research directions are outlined and discussed. We suggest that future studies should utilise a multi-disciplinary approach to better understand this complex system of pollen interactions that occur in nature.
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Affiliation(s)
| | - Ali Zare
- School of Engineering, Deakin University, VIC 3216, Australia
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Squillacioti G, Bellisario V, Ghelli F, Marcon A, Marchetti P, Corsico AG, Pirina P, Maio S, Stafoggia M, Verlato G, Bono R. Air pollution and oxidative stress in adults suffering from airway diseases. Insights from the Gene Environment Interactions in Respiratory Diseases (GEIRD) multi-case control study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 909:168601. [PMID: 37977381 DOI: 10.1016/j.scitotenv.2023.168601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
Air pollution is a leading risk factor for global mortality and morbidity. Oxidative stress is a key mechanism underlying air-pollution-mediated health effects, especially in the pathogenesis/exacerbation of airway impairments. However, evidence lacks on subgroups at higher risk of developing more severe outcomes in response to air pollution. This multi-centre study aims to evaluate the association between air pollution and oxidative stress in healthy adults and in patients affected by airway diseases from the Italian GEIRD (Gene Environment Interactions in Respiratory Diseases) multi-case control study. Overall, 1841 adults (49 % females, 20-83 years) were included from four Italian centres: Pavia, Sassari, Turin, and Verona. Following a 2-stage screening process, we identified 1273 cases of asthma, chronic bronchitis, rhinitis, or COPD and 568 controls. Systemic oxidative stress was quantified by urinary 8-isoprostane and 8-OH-dG. Individual residential exposures to NO2, PM10, PM2.5, and O3 were derived using an innovative five-stage machine-learning-based approach. Linear mixed regression models tested the association between oxidative stress biomarkers and air pollution tertiles, adjusting by age, sex, BMI, smoking, education and season, with recruiting centres as random intercept. Only cases exhibited higher levels of log-transformed 8-isoprostane and 8-OH-dG in association with NO2 (β: 0.30 95 % CI: 0.08-0.52 and 0.20 95 % CI: 0.03-0.37), PM10 (0.34 95 % CI: 0.12-0.55 and 0.21 95 % CI: 0.05-0.37) and PM2.5 (0.27 95 % CI: 0.09-0.49 and 0.18 95 % CI: 0.02-0.34) as compared to the first tertile of exposure. No significant associations were observed for summer O3. Our findings suggest that exposure to air pollution may increase systemic oxidative stress levels in people suffering from airway diseases. This introduces a potential novel approach available for future epidemiological studies and Public Health for effective prevention strategies oriented at the quantification of early biological effects in susceptible people, whose additional risk level might be currently underrated. Air-pollution-mediated exacerbations, driven by oxidative stress, still deserve our attention.
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Affiliation(s)
- Giulia Squillacioti
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
| | - Valeria Bellisario
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
| | - Federica Ghelli
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
| | - Alessandro Marcon
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy.
| | - Pierpaolo Marchetti
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy.
| | - Angelo G Corsico
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy; SC Pneumologia, Fondazione IRCCS Policlinico San Matteo, Italy.
| | - Pietro Pirina
- Clinical and Interventional Pulmonology, University Hospital Sassari (AOU), Sassari, Italy; Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy.
| | - Sara Maio
- Institute of Clinical Physiology, National Research Council, Pisa, Italy.
| | - Massimo Stafoggia
- Department of Epidemiology of the Lazio Region Health Service, ASL Roma 1, Rome, Italy.
| | - Giuseppe Verlato
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy.
| | - Roberto Bono
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
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Yang HH, Paul KC, Cockburn MG, Thompson LK, Cheng MY, Suh JD, Wang MB, Lee JT. Residential Proximity to a Commercial Pesticide Application Site and Risk of Chronic Rhinosinusitis. JAMA Otolaryngol Head Neck Surg 2023; 149:773-780. [PMID: 37440215 PMCID: PMC10346512 DOI: 10.1001/jamaoto.2023.1499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/12/2023] [Indexed: 07/14/2023]
Abstract
Importance Environmental and occupational toxicants have been shown to be associated with an increased prevalence of chronic rhinosinusitis (CRS). However, few to no studies have evaluated patients for CRS using objective testing and workup protocols that fulfill guidelines for CRS diagnostic criteria. Furthermore, no study, to our knowledge, has investigated the risks of CRS in the context of residential exposure through proximity to a commercial pesticide application site. Objectives To evaluate associations of residential proximity to a commercial pesticide application site and the prevalence of CRS with nasal polyps (CRSwNP) and without nasal polyps (CRSwoNP). Design, Setting, and Participants This was a retrospective cohort study of patients who presented to a tertiary care institution for rhinology evaluation between March 1, 2018, and December 31, 2022. Main Outcomes and Measures The outcome variable was the clinical diagnosis of CRS (CRSwNP, CRSwoNP, or non-CRS control). Patients' residential addresses were utilized to determine pesticide exposure status based on a validated computational geographic information algorithm based on data from the California Pesticide Use Report System. The dichotomous independent variable of exposure status (exposed or non-exposed) was determined by assessing reports of any pesticide applications within 2000 m of each participant's residence in 2017. Multivariable logistic regressions assessing CRS status and CRS subtypes were conducted with pesticide exposure as the primary covariate of interest. The primary study outcome and measurements as well as study hypothesis were all formulated before data collection. Results Among a total of 310 patients (90 CRSwNP, 90 CRSwoNP, and 130 control), the mean (SD) age was 50 (17) years; 164 (53%) were female. Race and ethnicity information was not considered. Controlling for patient demographic information, smoking history, county of residence, and medical comorbidities, pesticide exposure was associated with an approximately 2.5-fold increase in odds of CRS (adjusted odds ratio, 2.41; 95% CI, 1.49-3.90). Pesticide exposure was associated with similar risks for CRSwNP (adjusted relative risk ratio [aRRR], 2.34; 95% CI, 1.31-4.18) and CRSwoNP (aRRR, 2.42; 95% CI, 1.37-4.30). Conclusions and Relevance The findings of this retrospective cohort study and analysis revealed that residential exposure to commercial pesticide application within a 2000-m buffer was independently associated with an approximately 2.5-fold increase in odds of being diagnosed with CRS. If validated by additional research, this association would have substantial implications for public health.
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Affiliation(s)
- Hong-Ho Yang
- David Geffen School of Medicine, University of California, Los Angeles
| | - Kimberly C. Paul
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
| | - Myles G. Cockburn
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles
| | - Laura K. Thompson
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles
| | | | - Jeffrey D. Suh
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles
| | - Marilene B. Wang
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles
| | - Jivianne T. Lee
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles
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Bi J, D’Souza RR, Moss S, Senthilkumar N, Russell AG, Scovronick NC, Chang HH, Ebelt S. Acute Effects of Ambient Air Pollution on Asthma Emergency Department Visits in Ten U.S. States. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:47003. [PMID: 37011135 PMCID: PMC10069759 DOI: 10.1289/ehp11661] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 02/05/2023] [Accepted: 03/02/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Previous studies of short-term ambient air pollution exposure and asthma morbidity in the United States have been limited to a small number of cities and/or pollutants and with limited consideration of effects across ages. OBJECTIVES To estimate acute age group-specific effects of fine and coarse particulate matter (PM), major PM components, and gaseous pollutants on emergency department (ED) visits for asthma during 2005-2014 across the United States. METHODS We acquired ED visit and air quality data in regions surrounding 53 speciation sites in 10 states. We used quasi-Poisson log-linear time-series models with unconstrained distributed exposure lags to estimate site-specific acute effects of air pollution on asthma ED visits overall and by age group (1-4, 5-17, 18-49, 50-64, and 65+ y), controlling for meteorology, time trends, and influenza activity. We then used a Bayesian hierarchical model to estimate pooled associations from site-specific associations. RESULTS Our analysis included 3.19 million asthma ED visits. We observed positive associations for multiday cumulative exposure to all air pollutants examined [e.g., 8-d exposure to PM2.5: rate ratio of 1.016 with 95% credible interval (CI) of (1.008, 1.025) per 6.3-μg/m3 increase, PM10-2.5: 1.014 (95% CI: 1.007, 1.020) per 9.6-μg/m3 increase, organic carbon: 1.016 (95% CI: 1.009, 1.024) per 2.8-μg/m3 increase, and ozone: 1.008 (95% CI: 0.995, 1.022) per 0.02-ppm increase]. PM2.5 and ozone showed stronger effects at shorter lags, whereas associations of traffic-related pollutants (e.g., elemental carbon and oxides of nitrogen) were generally stronger at longer lags. Most pollutants had more pronounced effects on children (<18 y old) than adults; PM2.5 had strong effects on both children and the elderly (>64 y old); and ozone had stronger effects on adults than children. CONCLUSIONS We reported positive associations between short-term air pollution exposure and increased rates of asthma ED visits. We found that air pollution exposure posed a higher risk for children and older populations. https://doi.org/10.1289/EHP11661.
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Affiliation(s)
- Jianzhao Bi
- Department of Environmental & Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Rohan R. D’Souza
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia, USA
| | - Shannon Moss
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia, USA
| | - Niru Senthilkumar
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Armistead G. Russell
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Noah C. Scovronick
- Gangarosa Department of Environmental Health, Emory University, Atlanta, Georgia, USA
| | - Howard H. Chang
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia, USA
| | - Stefanie Ebelt
- Gangarosa Department of Environmental Health, Emory University, Atlanta, Georgia, USA
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Losol P, Sokolowska M, Chang YS. Interactions between microbiome and underlying mechanisms in asthma. Respir Med 2023; 208:107118. [PMID: 36641058 DOI: 10.1016/j.rmed.2023.107118] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/23/2022] [Accepted: 01/10/2023] [Indexed: 01/13/2023]
Abstract
Microbiome primes host innate immunity in utero and play fundamental roles in the development, training, and function of the immune system throughout the life. Interplay between the microbiome and immune system maintains mucosal homeostasis, while alterations of microbial community dysregulate immune responses, leading to distinct phenotypic features of immune-mediated diseases including asthma. Microbial imbalance within the mucosal environments, including upper and lower airways, skin, and gut, has consistently been observed in asthma patients and linked to increased asthma exacerbations and severity. Microbiome research has increased to uncover hidden microbial members, function, and immunoregulatory effects of bacterial metabolites within the mucosa. This review provides an overview of environmental and genetic factors that modulate the composition and function of the microbiome, and the impacts of microbiome metabolites and skin microbiota on immune regulation in asthma.
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Affiliation(s)
- Purevsuren Losol
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea; Medical Research Center, Seoul National University, Seoul, South Korea; Department of Molecular Biology and Genetics, School of Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), Herman-Burchard Strasse 9, CH7265, Davos, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Yoon-Seok Chang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea; Medical Research Center, Seoul National University, Seoul, South Korea.
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6
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Zhou X, Guo M, Li Z, Yu X, Huang G, Li Z, Zhang X, Liu L. Associations between air pollutant and pneumonia and asthma requiring hospitalization among children aged under 5 years in Ningbo, 2015-2017. Front Public Health 2023; 10:1017105. [PMID: 36777770 PMCID: PMC9908005 DOI: 10.3389/fpubh.2022.1017105] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/27/2022] [Indexed: 01/26/2023] Open
Abstract
Introduction Exposure to ambient air pollutants is associated with an increased incidence of respiratory diseases such as pneumonia and asthma, especially in younger children. We investigated the relationship between rates of hospitalization of children aged under 5 years for pneumonia and asthma and the concentration of air pollutants in Ningbo between January 1, 2015 and August 29, 2017. Methods Data were obtained from the Ningbo Air Quality Data Real-time Publishing System and the big data platform of the Ningbo Health Information Center. A generalized additive model was established via logarithmic link function and utilized to evaluate the effect of pollutant concentration on lag dimension and perform sensitivity analysis. Results A total of 10,301 cases of pneumonia and 115 cases of asthma were identified over the course of this study. Results revealed that PM2.5, PM10, SO2 and NO2 were significantly associated with hospitalization for pneumonia and asthma in children under 5 years of age. For every 10-unit increase in lag03 air pollutant concentration, hospitalization for pneumonia and asthma due to PM2.5, PM10, SO2 and NO2 increased by 2.22% (95%CI: 0.64%, 3.82%), 1.94% (95%CI: 0.85%, 3.04%), 11.21% (95%CI: 4.70%, 18.10%) and 5.42% (95%CI: 3.07%, 7.82%), respectively. Discussion Adverse effects of air pollutants were found to be more severe in children aged 1 to 5 years and adverse effects due to PM2.5, PM10 and SO2 were found to be more severe in girls. Our findings underscore the need for implementation of effective public health measures to urgently improve air quality and reduce pediatric hospitalizations due to respiratory illness.
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Affiliation(s)
- Xingyuan Zhou
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Min Guo
- Department of Obstetrics, Tangshan Maternal and Child Health Care Hospital of Hebei Province, Tangshan, Hebei, China
| | - Zhifei Li
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Xiping Yu
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Gang Huang
- Department of Preventative Medicine, Medicine School of Ningbo University, Ningbo, Zhejiang, China
| | - Zhen Li
- Department of Preventative Medicine, Medicine School of Ningbo University, Ningbo, Zhejiang, China
| | - Xiaohong Zhang
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China,*Correspondence: Xiaohong Zhang ✉
| | - Liya Liu
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China,Liya Liu ✉
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A spatial copula interpolation in a random field with application in air pollution data. MODELING EARTH SYSTEMS AND ENVIRONMENT 2023; 9:175-194. [PMID: 35996594 PMCID: PMC9385445 DOI: 10.1007/s40808-022-01484-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/16/2022] [Indexed: 12/01/2022]
Abstract
Interpolating a skewed conditional spatial random field with missing data is cumbersome in the absence of Gaussianity assumptions. Copulas can capture different types of joint tail characteristics beyond the Gaussian paradigm. Maintaining spatial homogeneity and continuity around the observed random spatial point is also challenging. Especially when interpolating along a spatial surface, the boundary points also demand focus in forming a neighborhood. As a result, importing the concept of hierarchical clustering on the spatial random field is necessary for developing the copula model with the interface of the Expectation-Maximization algorithm and concurrently utilizing the idea of the Bayesian framework. This article introduces a spatial cluster-based C-vine copula and a modified Gaussian distance kernel to derive a novel spatial probability distribution. To make spatial copula interpolation compatible and efficient, we estimate the parameter by employing different techniques. We apply the proposed spatial interpolation approach to the air pollution of Delhi as a crucial circumstantial study to demonstrate this newly developed novel spatial estimation technique.
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Atkinson CE, Kesic MJ, Hernandez ML. Ozone in the Development of Pediatric Asthma and Atopic Disease. Immunol Allergy Clin North Am 2022; 42:701-713. [PMID: 36265970 PMCID: PMC10519373 DOI: 10.1016/j.iac.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Ozone (O3) is a ubiquitous outdoor air pollutant, which may be derived from various primary pollutants such as nitrates, hydrocarbons, and volatile organ compounds through ultraviolet radiation exposure, and has been shown to negatively impact respiratory health. O3 is the most common noninfectious environmental cause of asthma exacerbations among children and adults. Its effects on pediatric respiratory health could be due to multiple physiologic factors that may contribute to enhanced O3 exposure seen in children compared with adults, including differences in lung surface area per unit of body weight and ventilation rates. O3 can reach the distal regions of human lungs due to its low water solubility, resulting in either injury or activation of airway epithelial cells and macrophages. Multiple epidemiologic studies have highlighted a link between exposure to air pollution and the development of asthma. This review article specifically focuses on examining the impact of early life O3 exposure on lung development, lung function, and the risk of developing atopic diseases including asthma, allergic rhinitis, and atopic dermatitis among children.
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Affiliation(s)
- Claire E Atkinson
- Division of Allergy & Immunology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Matthew J Kesic
- Campbell University College of Pharmacy & Health Sciences, Physician Assistant Program, Buies Creek, NC, USA
| | - Michelle L Hernandez
- Division of Allergy & Immunology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
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9
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Urrutia-Pereira M, Guidos-Fogelbach G, Solé D. Climate changes, air pollution and allergic diseases in childhood and adolescence. J Pediatr (Rio J) 2022; 98 Suppl 1:S47-S54. [PMID: 34896064 PMCID: PMC9510908 DOI: 10.1016/j.jped.2021.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To analyze the impacts of climate change on the development of immature respiratory and immune systems in children. SOURCE OF DATA The authors of the present study performed a non-systematic review of English, Spanish, and Portuguese articles published in the last five years in databases such as PubMed, EMBASE, and SciELO. The terms used were air pollution OR climate changes OR smoke, AND children OR health. SYNTHESIS OF DATA The increase in the prevalence of some diseases, such as allergic ones, is attributed to the interactions between genetic potential and the environment. However, disordered growth combined with inadequate waste management has caused problems for the planet, such as heatwaves, droughts, forest fires, increased storms and floods, interference in food crops and their nutritional values, changes in the infectious disease pattern, and air pollution resulting from the continuous use of fossil fuels. Children, beings still in the development stage with immature respiratory and immune systems, are the primary victims of the climate crisis. CONCLUSIONS The authors documented that prenatal and postnatal exposure to ambient air pollutants will accelerate or worsen the morbidity and mortality of many health conditions, including allergic diseases. Ambient air pollutants change the microbiota, interfere with the immune response, and take direct action on the skin and respiratory epithelium, which facilitates the penetration of allergens. Understanding how the children and adolescent health and well-being are affected by climate change is an urgent matter.
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Affiliation(s)
| | - Guillermo Guidos-Fogelbach
- Instituto Politécnico Nacional, Escuela Nacional de Medicina y Homeopatía, Postgraduate Department, Mexico City, Mexico
| | - Dirceu Solé
- Universidade Federal de São Paulo, Escola Paulista de Medicina, Departamento de Pediatria, Divisão de Alergia, Imunologia Clínica e Reumatologia, São Paulo, SP, Brazil.
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10
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Abstract
The use of electronic (e)-cigarettes was initially considered a beneficial solution to conventional cigarette smoking cessation. However, paradoxically, e-cigarette use is rapidly growing among nonsmokers, including youth and young adults. In 2019, this rapid growth resulted in an epidemic of hospitalizations and deaths of e-cigarette users (vapers) due to acute lung injury; this novel disease was termed e-cigarette or vaping use-associated lung injury (EVALI). Pathophysiologic mechanisms of EVALI likely involve cytotoxicity and neutrophilic inflammation caused by inhaled chemicals, but further details remain unknown. The undiscovered mechanisms of EVALI are a barrier to identifying biomarkers and developing therapeutics. Furthermore, adverse effects of e-cigarette use have been linked to chronic lung diseases and systemic effects on multiple organs. In this comprehensive review, we discuss the diverse spectrum of vaping exposures, epidemiological and clinical reports, and experimental findings to provide a better understanding of EVALI and the adverse health effects of chronic e-cigarette exposure.
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Affiliation(s)
- Jin-Ah Park
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA;
| | - Laura E Crotty Alexander
- University of California at San Diego, La Jolla, California, USA.,Veterans Affairs (VA) San Diego Healthcare System, San Diego, California, USA
| | - David C Christiani
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA; .,Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
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11
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Bai KJ, Tung NT, Hsiao TC, Chen TL, Chung KF, Ho SC, Tsai CY, Chen JK, Lee CN, Lee KY, Chang CC, Chen TT, Feng PH, Chen KY, Su CL, Thao HNX, Dung HB, Thuy TPC, Lee YL, Chuang HC. Associations between lung-deposited dose of particulate matter and culture-positive pulmonary tuberculosis pleurisy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:6140-6150. [PMID: 34448140 DOI: 10.1007/s11356-021-16008-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
Epidemiological studies identified the relationship between air pollution and pulmonary tuberculosis. Effects of lung-deposited dose of particulate matter (PM) on culture-positive pulmonary tuberculosis remain unclear. This study investigates the association between lung-deposited dose of PM and pulmonary tuberculosis pleurisy. A case-control study of subjects undergoing pleural effusion drainage of pulmonary tuberculosis (case) and chronic heart failure (control) was conducted. Metals and biomarkers were quantified in the pleural effusion. The air pollution exposure was measured and PM deposition in the head, tracheobronchial, alveolar region, and total lung region was estimated by Multiple-path Particle Dosimetry (MPPD) Model. We performed multiple logistic regression to examine the associations of these factors with the risk of tuberculosis. We observed that 1-μg/m3 increase in PM10 was associated with 1.226-fold increased crude odds ratio (OR) of tuberculosis (95% confidence interval (CI): 1.023-1.469, p<0.05), 1-μg/m3 increase in PM2.5-10 was associated with 1.482-fold increased crude OR of tuberculosis (95% CI: 1.048-2.097, p < 0.05), 1-ppb increase in NO2 was associated with 1.218-fold increased crude OR of tuberculosis (95% CI: 1.025-1.447, p < 0.05), and 1-ppb increase in O3 was associated with 0.735-fold decreased crude OR of tuberculosis (95% CI: 0.542 0.995). We observed 1-μg/m3 increase in PM deposition in head and nasal region was associated with 1.699-fold increased crude OR of tuberculosis (95% CI: 1.065-2.711, p < 0.05), 1-μg/m3 increase in PM deposition in tracheobronchial region was associated with 1.592-fold increased crude OR of tuberculosis (95% CI: 1.095-2.313, p < 0.05), 1-μg/m3 increase in PM deposition in alveolar region was associated with 3.981-fold increased crude OR of tuberculosis (95% CI: 1.280-12.386, p < 0.05), and 1-μg/m3 increase in PM deposition in total lung was associated with 1.511-fold increased crude OR of tuberculosis (95% CI: 1.050-2.173, p < 0.05). The results indicate that particle deposition in alveolar region could cause higher risk of pulmonary tuberculosis pleurisy than deposition in other lung regions.
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Affiliation(s)
- Kuan-Jen Bai
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - 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
| | - Ta-Chih Hsiao
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan
| | - Tsai-Ling Chen
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan
| | - Kian Fan Chung
- Faculty of Medicine, National Heart & Lung Institute, Imperial College London, London, UK
| | - Shu-Chuan Ho
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Cheng-Yu Tsai
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Jen-Kun Chen
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Life Sciences and School of Dentistry, National Defense Medical Center, Taipei, Taiwan
| | - Chun-Nin Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chih-Cheng Chang
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tzu-Tao Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kuan-Yuan Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chien-Ling Su
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | | | - Hoang Ba Dung
- Otorhinolaryngology Department, Cho Ray Hospital, Ho Chi Minh City, Vietnam
| | - Tran Phan Chung Thuy
- Otorhinolaryngology Department, Faculty of Medicine, Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Yueh-Lun Lee
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan.
| | - Hsiao-Chi Chuang
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan.
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
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12
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Han CH, Pak H, Chung JH. Short-term effects of exposure to particulate matter and air pollution on hospital admissions for asthma and chronic obstructive pulmonary disease in Gyeonggi-do, South Korea, 2007-2018. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:1535-1541. [PMID: 34900286 PMCID: PMC8617096 DOI: 10.1007/s40201-021-00709-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 07/10/2021] [Indexed: 06/02/2023]
Abstract
OBJECTIVES Research is lacking on the impacts of exposure to particulate matter (PM) and air pollution on patients with chronic obstructive pulmonary disease (COPD) or asthma. Therefore, we investigate the effects of various air pollution factors on hospitalization for asthma and COPD. METHODS We obtained data on pollutants-PM10, PM2.5, carbon monoxide (CO), ozone (O3), nitrogen dioxide (NO2), and sulfur dioxide (SO2)-in Gyeonggi-do, South Korea. We also extracted data from Korean National Health Insurance records and investigated asthma and COPD attacks that required hospitalization from January 2007 through February 2018. We used generalized additive models with Poisson distribution and log transformation to calculate adjusted risk. A time-stratified case-crossover design was used, and conditional logistic regression was performed to analyze these data. RESULTS Per-unit increases in concentrations of PM10, PM2.5, SO2, NO2, CO, and O3 on different best lag days were associated with increased risks for hospital admission for COPD and asthma. SO2 had the strongest effect on hospital admission for asthma (odds ratio [OR], 1.535; 95 % confidence interval [CI], 1.450-1.619). SO2 also had the strongest effect on hospital admission for COPD (OR, 1.659; 95 % CI, 1.541-1.786). Subgroup analyses showed that these relationships were stronger in seniors (≥ 65 years old) and women with asthma than in men and nonseniors with COPD. CONCLUSIONS Short-term exposure to PM10, PM2.5, CO, O3, NO2, and SO2 may result in hospitalization for asthma and COPD. Of these pollutants, SO2 has the strongest effects. Therefore, patients with COPD and asthma should be cautioned against performing outdoor activities when SO2 levels are high.
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Affiliation(s)
- Chang Hoon Han
- Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea
| | - Haeyong Pak
- Research and Analysis Team, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea
| | - Jae Ho Chung
- Department of Internal Medicine, International St. Mary`s Hospital, Catholic Kwandong University College of Medicine, Simgokro 100Gil 25 Seo-gu, 22711 Incheon, Republic of Korea
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13
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Ren Y, Yan Y, Zhen L, Cao C, Wang Q, Zhang Y, Zhu S. Zhike Pingchuan Granule suppresses interleukin (IL)-6 or the medium of M2 macrophages induced apoptosis in human bronchial epithelial cells. Bioengineered 2021; 12:7694-7703. [PMID: 34608825 PMCID: PMC8806789 DOI: 10.1080/21655979.2021.1982309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The aim of this study was to explore the effects and action mechanism of Zhike Pingchuan Granule in human bronchial epithelial cells induced by IL-6 or the supernatant of M2. Upon IL-6 stimulation at different doses, Cell Counting Kit-8 (CCK8) assay and flow cytometry were, respectively, utilized to detect the cell viability and apoptosis levels of 16-HBE cells. ELISA and Western blot were, respectively, used to analyze the inflammatory markers and JAK2/STAT3 signals. Immunofluorescence assay was performed to identify M0 and M2 cells. As shown in results, ZKPC perturbed the expression of IL-6 inducible genes important for apoptosis, oxidative and inflammatory response, which was enhanced by JAK2 inhibitor. Besides the inhibitory effects on the phosphorylation levels of JAK2/STAT3, ZKPC markedly increased cell viability and reduced apoptosis in human bronchial epithelial cells (16-HBE) cultured in the supernatant of M2 cells. Collectively, ZKPC could inhibit the IL-6-induced JAK/STAT3 signaling cascade, increase cell viability and decrease apoptosis induced by the supernatant of M2. A more comprehensive understanding of the action mechanism of ZKPC on JAK2/STAT3 signaling pathway in human bronchial epithelial cells induced by IL-6 or M2 supernatant will enable ZKPC development in the control of asthma.
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Affiliation(s)
- Yumei Ren
- Pediatric Department, The Second Clinical Medical College of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Yongbin Yan
- Pediatric Department, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Lei Zhen
- Central laboratory, Central Laboratory, the Second Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Caihong Cao
- Pediatric Department, The Second Clinical Medical College of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Quan Wang
- Basic Medicine, Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Yingying Zhang
- Pediatric Department, The Second Clinical Medical College of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Shan Zhu
- Pediatric Department, The Second Clinical Medical College of Henan University of Traditional Chinese Medicine, Zhengzhou, China
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14
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Rosado-Pérez MN, Ríos-Soto K. On the spread of ultrafine particulate matter: A mathematical model for motor vehicle emissions and their effects as an asthma trigger. INT J BIOMATH 2021. [DOI: 10.1142/s179352452150087x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Asthma is a respiratory disease that affects the lungs, with a prevalence of 339.4 million people worldwide [G. Marks, N. Pearce, D. Strachan, I. Asher and P. Ellwood, The Global Asthma Report 2018, globalasthmareport.org (2018)]. Many factors contribute to the high prevalence of asthma, but with the rise of the industrial age, air pollutants have become one of the main Ultrafine particles (UFPs), which are a type of air pollutant that can affect asthmatics the most. These UFPs originate primarily from the combustion of motor vehicles [P. Solomon, Ultrafine particles in ambient air. EM: Air and Waste Management Association’s Magazine for Environmental Managers (2012)] and although in certain places some regulations to control their emission have been implemented they might not be enough. In this work, a mathematical model of reaction–diffusion type is constructed to study how UFPs grow and disperse in the environment and in turn how they affect an asthmatic population. Part of our focus is on the existence of traveling wave solutions and their minimum asymptotic speed of pollutant propagation [Formula: see text]. Through the analysis of the model it was possible to identify the necessary threshold conditions to control the pollutant emissions and consequently reduce the asthma episodes in the population. Analytical and numerical results from this work prove how harmful the UFEs are for the asthmatic population and how they can exacerbate their asthma episodes.
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Affiliation(s)
| | - Karen Ríos-Soto
- Department of Mathematical Sciences, University of Puerto Rico Mayagüez, Mayagüez, Puerto Rico 00682, USA
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15
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Velasquez N, Gardiner L, Cheng TZ, Moore JA, Boudreau RM, Presto AA, Lee SE. Relationship between socioeconomic status, exposure to airborne pollutants, and chronic rhinosinusitis disease severity. Int Forum Allergy Rhinol 2021; 12:172-180. [PMID: 34510788 DOI: 10.1002/alr.22884] [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: 03/07/2021] [Revised: 07/01/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Air pollution directly interacts with airway mucosa, yet little is known about how pollutants affect upper airway inflammation. Studies have shown increased incidence of chronic rhinosinusitis (CRS), rhinitis, and asthma in areas with higher traffic pollution, and these neighborhoods are often associated with lower socioeconomic status (SES). The Area Deprivation Index (ADI) assesses neighborhood-level SES by zip code. The purpose of this study was to assess the relationship between SES and exposure to inhaled pollutants and CRS disease severity. METHODS CRS patients with and without nasal polyps (CRSwNP and CRSsNP, respectively) were identified (total patients = 234; CRSwNP patients = 138; CRSsNP patients = 96). Pollutant concentrations, including particulate matter 2.5 (PM2.5 ), black carbon (BC), and nitrogen dioxide (NO2 ), were measured at 70 sites within the defined countywide sites and used to estimate patient exposures. SES was measured by ADI state deciles. Disease severity metrics included the modified Lund-Mackay score (LMS), the need for systemic steroids, and functional endoscopic sinus surgery (FESS). Associations were analyzed and identified using linear, logistic, and Poisson multivariable regression. RESULTS The distribution of CRSsNP and CRSwNP patients across ADI state deciles was similar. ADI, however, was a predictor of exposure to airborne pollutants (PM2.5 , BC, and NO2 ) with a 1.39%, 2.39%, and 2.49% increase in PM2.5 , BC, and NO2 per increasing decile increment (p < 0.0001), respectively, which demonstrated a direct correlation between deprived neighborhoods and higher levels of exposure to PM2.5 , BC, and NO2 with an increase in pollutant levels per increase in ADI decile. Furthermore, ADI was a predictor for increased steroid treatment. CONCLUSION Lower SES predicted higher exposure to air pollution and increased disease severity in patients with CRS as demonstrated by the increased need for steroid treatment.
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Affiliation(s)
| | - Lauren Gardiner
- Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA
| | - Tracy Z Cheng
- Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA
| | - John A Moore
- Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA
| | - Robert M Boudreau
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA
| | - Albert A Presto
- Center for Atmospheric Particle Studies and Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA
| | - Stella E Lee
- Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA
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16
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Effect of tiger milk mushroom (Lignosus rhinocerus) supplementation on respiratory health, immunity and antioxidant status: an open-label prospective study. Sci Rep 2021; 11:11781. [PMID: 34083710 PMCID: PMC8175741 DOI: 10.1038/s41598-021-91256-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/25/2021] [Indexed: 11/21/2022] Open
Abstract
Tiger milk mushroom (TMM; Lignosus rhinocerus) have been used for a long time by indigenous communities in South East Asia regions as traditional medicine for different ailments, including respiratory disorders. The beneficial effects of TMM have been proven through in vivo and in vitro models, but these effects have yet to be validated in a clinical study. In this study, the beneficial effects of TMM supplementation were investigated in 50 voluntary participants. Participants were required to take 300 mg of TMM twice daily for three months. Level of interleukin 1β (IL-1β), interleukin 8 (IL-8), immunoglobulin A (IgA), total antioxidant capacity, malondialdehyde (MDA), 3-nitrotyrosine (3-NT), 8-hydroxydeoxyguanosine (8-OHdG), pulmonary function and respiratory symptoms were assessed during baseline and monthly follow-up visits. Results demonstrated that supplementation of TMM significantly (p < 0.05) suppressed the level of IL-1β, IL-8, MDA, as well as respiratory symptoms. In additional to that, TMM also significantly (p < 0.05) induced the level of IgA, total antioxidant capacity, as well as pulmonary function. Analyses of data indicated that gender and BMI were factors influencing the outcomes of antioxidant status. Collectively, our findings suggested that TMM supplementation effectively improves respiratory health, immunity and antioxidant status.
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17
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James BN, Oyeniran C, Sturgill JL, Newton J, Martin RK, Bieberich E, Weigel C, Maczis MA, Palladino END, Lownik JC, Trudeau JB, Cook-Mills JM, Wenzel S, Milstien S, Spiegel S. Ceramide in apoptosis and oxidative stress in allergic inflammation and asthma. J Allergy Clin Immunol 2021; 147:1936-1948.e9. [PMID: 33130063 PMCID: PMC8081742 DOI: 10.1016/j.jaci.2020.10.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Nothing is known about the mechanisms by which increased ceramide levels in the lung contribute to allergic responses and asthma severity. OBJECTIVE We sought to investigate the functional role of ceramide in mouse models of allergic airway disease that recapitulate the cardinal clinical features of human allergic asthma. METHODS Allergic airway disease was induced in mice by repeated intranasal administration of house dust mite or the fungal allergen Alternaria alternata. Processes that can be regulated by ceramide and are important for severity of allergic asthma were correlated with ceramide levels measured by mass spectrometry. RESULTS Both allergens induced massive pulmonary apoptosis and also significantly increased reactive oxygen species in the lung. Prevention of increases in lung ceramide levels mitigated allergen-induced apoptosis, reactive oxygen species, and neutrophil infiltration. In contrast, dietary supplementation of the antioxidant α-tocopherol decreased reactive oxygen species but had no significant effects on elevation of ceramide level or apoptosis, indicating that the increases in lung ceramide levels in allergen-challenged mice are not mediated by oxidative stress. Moreover, specific ceramide species were altered in bronchoalveolar lavage fluid from patients with severe asthma compared with in bronchoalveolar lavage fluid from individuals without asthma. CONCLUSION Our data suggest that elevation of ceramide level after allergen challenge contributes to the apoptosis, reactive oxygen species generation, and neutrophilic infiltrate that characterize the severe asthmatic phenotype. Ceramide might be the trigger of formation of Creola bodies found in the sputum of patients with severe asthma and could be a biomarker to optimize diagnosis and to monitor and improve clinical outcomes in this disease.
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Affiliation(s)
- Briana N James
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Clement Oyeniran
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Jamie L Sturgill
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, University of Kentucky College of Medicine, Lexington, Ky
| | - Jason Newton
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Rebecca K Martin
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Erhard Bieberich
- Department of Physiology, University of Kentucky College of Medicine, Lexington, Ky
| | - Cynthia Weigel
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Melissa A Maczis
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Elisa N D Palladino
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Joseph C Lownik
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - John B Trudeau
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Joan M Cook-Mills
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana School of Medicine, Indianapolis, Ind
| | - Sally Wenzel
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Sheldon Milstien
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Sarah Spiegel
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va.
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18
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Helminthostachys zeylanica Water Extract Ameliorates Airway Hyperresponsiveness and Eosinophil Infiltration by Reducing Oxidative Stress and Th2 Cytokine Production in a Mouse Asthma Model. Mediators Inflamm 2020; 2020:1702935. [PMID: 33343229 PMCID: PMC7725587 DOI: 10.1155/2020/1702935] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/26/2020] [Accepted: 10/29/2020] [Indexed: 12/15/2022] Open
Abstract
Helminthostachys zeylanica is a traditional folk herb used to improve inflammation and fever in Taiwan. Previous studies showed that H. zeylanica extract could ameliorate lipopolysaccharide-induced acute lung injury in mice. The aim of this study was to investigate whether H. zeylanica water (HZW) and ethyl acetate (HZE) extracts suppressed eosinophil infiltration and airway hyperresponsiveness (AHR) in asthmatic mice, and decreased the inflammatory response and oxidative stress in tracheal epithelial cells. Human tracheal epithelial cells (BEAS-2B cells) were pretreated with various doses of HZW or HZE (1 μg/ml-10 μg/ml), and cell inflammatory responses were induced with IL-4/TNF-α. In addition, female BALB/c mice sensitized with ovalbumin (OVA), to induce asthma, were orally administered with HZW or HZE. The result demonstrated that HZW significantly inhibited the levels of proinflammatory cytokines, chemokines, and reactive oxygen species in activated BEAS-2B cells. HZW also decreased ICAM-1 expression and blocked monocytic cells from adhering to inflammatory BEAS-2B cells in vitro. Surprisingly, HZW was more effective than HZE in suppressing the inflammatory response in BEAS-2B cells. Our results demonstrated that HZW significantly decreased AHR and eosinophil infiltration, and reduced goblet cell hyperplasia in the lungs of asthmatic mice. HZW also inhibited oxidative stress and reduced the levels of Th2 cytokines in bronchoalveolar lavage fluid. Our findings suggest that HZW attenuated the pathological changes and inflammatory response of asthma by suppressing Th2 cytokine production in OVA-sensitized asthmatic mice.
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19
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Li J, Qiu C, Xu P, Lu Y, Chen R. Casticin Improves Respiratory Dysfunction and Attenuates Oxidative Stress and Inflammation via Inhibition of NF-ĸB in a Chronic Obstructive Pulmonary Disease Model of Chronic Cigarette Smoke-Exposed Rats. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:5019-5027. [PMID: 33235440 PMCID: PMC7680168 DOI: 10.2147/dddt.s277126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 09/22/2020] [Indexed: 12/04/2022]
Abstract
Objective The present study was conducted to elucidate the protective effect of Casticin against chronic obstructive pulmonary disease (COPD) in rats. Methods The COPD in rats was induced by the controlled cigarette smoke, and CST (10, 20, and 30 mg/kg) was injected into the cigarette-smoke exposed rats. Blood was taken from the abdominal vein and centrifuged (1500×g, 4°C, 15min); plasma was collected and used for the determination of various biochemical parameters. Results The results of the study suggested that CST significantly improved the lung functions of the rats in a dose-dependent manner. It also causes a reduction of white blood cells, neutrophils, and macrophages in BALF of rats. The plasma level of leptin and C-reactive protein together with pro-inflammatory cytokines (TNF-α, IL-1β, and IL-6) were also significantly restored to near to normal in CST-treated group. In Western blot analysis, CST causes significant inhibition of the NF-ĸB and iNOS pathway. Conclusion Our study demonstrated that the CST protects lungs against COPD via improving lung functions and inhibition of oxidative stress and inflammation.
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Affiliation(s)
- Jie Li
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, Guangdong, People's Republic of China
| | - Chen Qiu
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, Guangdong, People's Republic of China
| | - Peng Xu
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, Guangdong, People's Republic of China
| | - Yongzhen Lu
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, Guangdong, People's Republic of China
| | - Rongchang Chen
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, Guangdong, People's Republic of China
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20
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Hu HX, Xu LT, Gao H, Lv H, Huang M, Fang KL, Wang SQ, Zhao BB, Ren DM, Wang XN, Lou HX, Shen T. Chemical Constituents from Physalis Calyx seu Fructus and Their Inhibitory Effects against Oxidative Stress and Inflammatory Response. PLANTA MEDICA 2020; 86:1191-1203. [PMID: 32668478 DOI: 10.1055/a-1197-7019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Physalis Calyx seu Fructus, a traditional Chinese medicine consisting of the calyxes and fruits of Physalis alkekengi var. franchetii, has been used as therapy for inflammation-related respiratory diseases such as excessive phlegm, cough, sore throat, and pharyngitis for a long history in China. The aim of the present study was to investigate the chemical constituents of Physalis Calyx seu Fructus and identify the bioactive constituents responsible for its traditional application as therapy for inflammation-related diseases. In the present study, one new phenylpropanoid (1: ), two new steroids (17: and 18: ), together with 55 known constituents have been purified from the EtOH extract of Physalis Calyx seu Fructus. Among them, seven and twelve known constituents were isolated for the first time from Physalis Calyx seu Fructus and the genus Physalis, respectively. Fourteen constituents, including steroids [physalins (5: - 9, 12: - 14: , and 15: ) and ergostane (21: )], a sesquiterpenoid (35: ), alkaloids (36: and 37: ), and a flavonoid (44: ), showed inhibitory effects against oxidative stress. Ten constituents, including steroids (5, 6, 8, 13: , and 15: ), sesquiterpenoids (34: and 35: ), alkaloids (37: and 41: ), and a flavonoid (43: ), were found be potential anti-inflammatory constituents of this medicinal plant. The inhibition of oxidative stress and inflammatory response may be related to the regulation of Nrf2 and nuclear factor-κB pathways. The ethnomedical use of Physalis Calyx seu Fructus as a treatment for respiratory diseases might be attributed to the combined inhibitory effects of steroids, alkaloids, sesquiterpenoids, and flavonoids against oxidative stress and inflammatory response.
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Affiliation(s)
- Hui-Xin Hu
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Lin-Tao Xu
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Hui Gao
- Shandong Institute for Food and Drug Control, Jinan, People's Republic of China
| | - Hui Lv
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, People's Republic of China
| | - Min Huang
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, People's Republic of China
| | - Kai-Li Fang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Shu-Qi Wang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Bao-Bing Zhao
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Dong-Mei Ren
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Xiao-Ning Wang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Hong-Xiang Lou
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Tao Shen
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
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21
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Löfgren M, Larsson P, Lindberg R, Hörnaeus K, Tydén E. Expression of xenobiotic metabolising enzymes in lungs of horses with or without histological evidence of lower airway inflammation. Vet Med Sci 2020; 7:16-24. [PMID: 32791560 PMCID: PMC7840205 DOI: 10.1002/vms3.331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 04/03/2020] [Accepted: 07/13/2020] [Indexed: 01/11/2023] Open
Abstract
Mild, moderate and severe equine asthma is a problem for equine welfare. The aetiology of the disease is not known in detail but is likely multi‐factorial. One important factor may be inhaled dust which carries harmful substances which may be bioactivated and thus can lead to local inflammation in the airways. The aim of this study was to investigate gene expression and protein localisation of cytochrome P450 (CYP) enzymes, superoxide dismutase and glutathione‐S‐transferases (GST) involved in bioactivation and detoxification of harmful substances in lungs of horses with or without histological evidence of lower airway inflammation. Significantly lower gene expression of CYP2A13 and GSTM1 was observed in lungs from horses with histological evidence of lower airway inflammation compared with horses without. A higher expression, although not significant, was found for CYP1A1 in horses with histological evidence of lower airway inflammation. There were no differences in gene expression of GSTP1 and SOD3. The proteins were localised in the respiratory epithelium which is of relevance as a defence to local exposure of inhaled harmful substances. In conclusion, our study reports differential gene expression of enzymes involved in bioactivation and detoxification of foreign substances in the lungs of horses with histological evidence of lower airway inflammation compared with horses without.
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Affiliation(s)
- Maria Löfgren
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Pia Larsson
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ronny Lindberg
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Katarina Hörnaeus
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Eva Tydén
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
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22
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Miller MR. Oxidative stress and the cardiovascular effects of air pollution. Free Radic Biol Med 2020; 151:69-87. [PMID: 31923583 PMCID: PMC7322534 DOI: 10.1016/j.freeradbiomed.2020.01.004] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 12/11/2022]
Abstract
Cardiovascular causes have been estimated to be responsible for more than two thirds of the considerable mortality attributed to air pollution. There is now a substantial body of research demonstrating that exposure to air pollution has many detrimental effects throughout the cardiovascular system. Multiple biological mechanisms are responsible, however, oxidative stress is a prominent observation at many levels of the cardiovascular impairment induced by pollutant exposure. This review provides an overview of the evidence that oxidative stress is a key pathway for the different cardiovascular actions of air pollution.
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Affiliation(s)
- Mark R Miller
- University/BHF Centre for Cardiovascular Science, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH4 3RL, United Kingdom.
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23
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Wieczfinska J, Sitarek P, Skała E, Kowalczyk T, Pawliczak R. Inhibition of NADPH Oxidase-Derived Reactive Oxygen Species Decreases Expression of Inflammatory Cytokines in A549 Cells. Inflammation 2020; 42:2205-2214. [PMID: 31612365 PMCID: PMC6856491 DOI: 10.1007/s10753-019-01084-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Various experimental models strongly support the hypothesis that airway inflammation can be caused by oxidative stress. Inflammatory airway diseases like asthma and COPD are characterized by higher levels of ROS and inflammatory cytokines. One of the sources of ROS is NADPH oxidase. Therefore, the aim of the study was to investigate influence of NADPH oxidase inhibition on the expression of IL-6, IL-8, TNF, TSLP, CD59, and PPAR-γ in vitro. A549 cells were incubated with apocynin in three concentrations (0.5 mg/ml, 1 mg/ml, and 3 mg/ml). Cells were trypsinized and RNA isolated after 1 h, 2 h, and 4 h of apocynin incubation at each concentration. Afterwards, reverse transcription was performed to evaluate mRNA expression using real-time PCR. The time-response and dose-response study showed that apocynin significantly influenced the relative expression of chosen genes (IL-6, IL-8, TNF, PPAR-γ, TSLP, and CD59). Apocynin decreased the mRNA expression of TNF-α at all concentrations used, and of IL-6 at concentrations of 1 and 3 mg/ml (p < 0.05). TSLP mRNA expression was also reduced by apocynin after 1 h and 2 h, and CD59 mRNA after 1 h, but only at the highest concentration. The expression of PPAR-γ was reduced after apocynin in the highest concentrations only (p < 0.05). The results might suggest that proinflammatory agents’ expression levels are strongly connected to the presence of oxidative stress generated by NADPH oxidase and this might be at least partially eliminated by anti-oxidative action. Apocynin, as an effective inhibitor of NADPH oxidase, seems to be useful in potential anti-oxidative and anti-inflammatory therapy.
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Affiliation(s)
- Joanna Wieczfinska
- Department of Immunopathology, Medical University of Lodz, 7/9 Zeligowskiego, Bldg 2, Rm 122, 90-752, Lodz, Poland
| | - Przemyslaw Sitarek
- Department of Biology and Pharmaceutical Botany, Medical University of Lodz, Lodz, Poland
| | - Ewa Skała
- Department of Genetics and Plant Molecular Biology and Biotechnology, The University of Lodz, Lodz, Poland
| | - Tomasz Kowalczyk
- Department of Biology and Pharmaceutical Botany, Medical University of Lodz, Lodz, Poland
| | - Rafal Pawliczak
- Department of Immunopathology, Medical University of Lodz, 7/9 Zeligowskiego, Bldg 2, Rm 122, 90-752, Lodz, Poland.
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24
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Velasquez N, Moore JA, Boudreau RM, Mady LJ, Lee SE. Association of air pollutants, airborne occupational exposures, and chronic rhinosinusitis disease severity. Int Forum Allergy Rhinol 2019; 10:175-182. [PMID: 31661614 DOI: 10.1002/alr.22477] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 09/16/2019] [Accepted: 10/16/2019] [Indexed: 01/12/2023]
Abstract
BACKGROUND Previous work has shown that chronic rhinosinusitis (CRS) severity may be associated with particulate matter 2.5 (PM2.5 ) and black carbon (BC) in CRS patients without nasal polyps (CRSsNP). Data regarding occupational exposures, however, are lacking. We assessed the impact of PM2.5 , BC, as well as occupational airborne exposure on CRS disease severity. METHODS Patients with CRS with nasal polyps (CRSwNP), CRSsNP, and aspirin-exacerbated respiratory disease (AERD) were identified from an institutionwide database. Spatial modeling from 37 pollutant monitoring sites in Allegheny County was used to estimate exposures. Patient occupations using the 2010 Standard Occupation Classification (SOC10) and airborne occupation exposures to vapors, gases, dusts, fumes, fibers and mists (VGDFFiM) or diesel fumes were recorded. Disease severity was measured by modified Lund-Mackay score (LMS), systemic corticosteroid therapy, and incidence of functional endoscopic sinus surgery (FESS). RESULTS Two hundred thirty-four patients were included (CRSwNP, n = 113; CRSsNP, n = 96; AERD, n = 25). The prevalence of AERD among those with CRSwNP was 18%. Patients exposed to VGDFFiM or diesel fumes required higher steroid doses vs nonexposed patients (p = 0.015 and p = 0.03, respectively); patients with VGDFFiM levels >5% were more likely to undergo FESS vs nonexposed patients (p = 0.0378). There was no difference in PM2.5 and BC with regard to disease severity and FESS between CRSwNP, CRSsNP, and AERD patients. Steroid use was significantly higher in CRSwNP and AERD vs CRSsNP (p = 0.001). LMS was significantly higher in AERD as compared with CRSwNP and CRSsNP (p = 0.001). CONCLUSION Occupational airborne exposure to VGDFFiM correlated with increased prevalence of FESS and need for corticosteroids in CRS patients. There was no difference in PM2.5 and BC levels and disease severity outcome measures between CRS subtypes in this subset.
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Affiliation(s)
| | - John A Moore
- Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA
| | - Robert M Boudreau
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA
| | - Leila J Mady
- Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA
| | - Stella E Lee
- Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA
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25
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Fernandes MJS, Carletti CO, Sierra de Araújo LF, Santos RC, Reis J. Respiratory gases, air pollution and epilepsy. Rev Neurol (Paris) 2019; 175:604-613. [PMID: 31519304 DOI: 10.1016/j.neurol.2019.07.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/21/2019] [Accepted: 07/23/2019] [Indexed: 12/29/2022]
Abstract
A growing number of studies have shown that exposure to air pollutants such as particulate matter and gases can cause cardiovascular, neurodegenerative and psychiatric diseases. The severity of the changes depends on several factors such as exposure time, age and gender. Inflammation has been considered as one of the main factors associated with the generation of these diseases. Here we present some cellular mechanisms activated by air pollution that may represent risk factors for epilepsy and drug resistance associated to epilepsy.
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Affiliation(s)
- M J S Fernandes
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
| | - C O Carletti
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - L F Sierra de Araújo
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - R C Santos
- Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - J Reis
- Service de Neurologie, Centre Hospitalier Universitaire, Hôpital de Hautepierre, 1, avenue Molière, 67200 Strasbourg, France
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26
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Ścibor M, Galbarczyk A, Jasienska G. Living Well with Pollution? The Impact of the Concentration of PM 2.5 on the Quality of Life of Patients with Asthma. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16142502. [PMID: 31337044 PMCID: PMC6678877 DOI: 10.3390/ijerph16142502] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 11/16/2022]
Abstract
While the negative influence of environmental pollution on the respiratory system is well established, especially for people with bronchial hyper-reactivity, the impact of particulate matter on quality of life in asthma patients is not well understood. Three hundred adult asthma patients were recruited for a study; for each patient, the daily concentrations of particulate matter of 2.5 µm or less in diameter (PM2.5) were recorded from air quality monitoring stations. The study was conducted over two weeks. After two weeks, the patients filled out the Asthma Quality of Life Questionnaire (AQLQ), evaluating the quality of their lives throughout the monitored period. Patients exposed to a higher concentration of PM2.5 had significantly lower AQLQ scores. Every 10 µg/m3 of an increase in the concentration of PM2.5 resulted in a decrease of the AQLQ score by 0.16. All domains of quality of life (symptoms, activity limitations, emotional functioning, and environmental stimuli) assessed in the questionnaire were negatively affected by PM2.5. These findings provide an important argument in favor of educating physicians and patients and raising awareness about the detrimental health effects of air pollution. Improving the quality of life of people with asthma requires an immediate and substantial reduction of air pollution.
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Affiliation(s)
- Monika Ścibor
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College 20 Grzegorzecka St., PL 31531 Krakow, Poland
| | - Andrzej Galbarczyk
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College 20 Grzegorzecka St., PL 31531 Krakow, Poland.
| | - Grazyna Jasienska
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College 20 Grzegorzecka St., PL 31531 Krakow, Poland
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27
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Lin WH, Pan WC, Yi CC. "Happiness in the air?" the effects of air pollution on adolescent happiness. BMC Public Health 2019; 19:795. [PMID: 31226978 PMCID: PMC6588912 DOI: 10.1186/s12889-019-7119-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 06/07/2019] [Indexed: 12/19/2022] Open
Abstract
Background We aimed to examine the effect of ambient air pollution at the district level on adolescents’ happiness and their change in happiness over time in a cohort sample from Taiwan. Method A cohort from the Taiwan Youth Project was evaluated. The adolescents (n = 2571) were in the 7th grade (mean age = 14.3 years) when the study was initiated and resided in 40 districts in three cities and counties in northern Taiwan. We examined the effects of the concentration level of air pollution, including PM2.5, PM10, and NO2, at the district level on adolescents’ happiness and their change in happiness over time (7th to 9th grade). Due to the high correlations of the three pollutants, we examined each separately with similar covariates. The analyses were based on both multilevel modeling and latent growth curve modeling. Results Higher concentration levels of each of the three air pollutants measured were associated with adolescent happiness such that a higher level of concentration was related to lower levels of adolescents’ happiness. These results were observed after controlling for important individual- and district-level covariates. However, further analyses did not reveal that the concentration level of air pollution was associated with the change in happiness in the study period (after 3 years). Some sensitivity checks (e.g., adjusting district size) did not change the substantive results. Conclusion Many previous studies have shown the influence of air pollution on physical health and negative emotions, but only a few using adult samples have shown that air pollution is inversely related to positive wellbeing. This study may be the first to examine the effects of air pollution on adolescents’ positive affect. Our results echo recent research on the consequent health burden of air pollution. Given that positive affect has been linked to future adult health, the results of the current study provide empirical grounds for early intervention concerning environmental factors. Electronic supplementary material The online version of this article (10.1186/s12889-019-7119-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wen-Hsu Lin
- Institute of Health and Welfare Policy, College of Medicine, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112, Taiwan.
| | - Wen-Chi Pan
- Institute of Environmental and Occupational Health Sciences, College of Medicine, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112, Taiwan
| | - Chin-Chun Yi
- Institute of Sociology, Academia Sinica, 128 Sec. 2 Academia Rd., Nankang, Taipei, 11529, Taiwan
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28
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Mostafavi N, Jeong A, Vlaanderen J, Imboden M, Vineis P, Jarvis D, Kogevinas M, Probst-Hensch N, Vermeulen R. The mediating effect of immune markers on the association between ambient air pollution and adult-onset asthma. Sci Rep 2019; 9:8818. [PMID: 31217483 PMCID: PMC6584571 DOI: 10.1038/s41598-019-45327-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 06/05/2019] [Indexed: 11/09/2022] Open
Abstract
We aim to investigate to what extent a set of immune markers mediate the association between air pollution and adult-onset asthma. We considered long-term exposure to multiple air pollution markers and a panel of 13 immune markers in peripheral blood samples collected from 140 adult cases and 199 controls using a nested-case control design. We tested associations between air pollutants and immune markers and adult-onset asthma using mixed-effects (logistic) regression models, adjusted for confounding variables. In order to evaluate a possible mediating effect of the full set of immune markers, we modelled the relationship between asthma and air pollution with a partial least square path model. We observed a strong positive association of IL-1RA [OR 1.37; 95% CI (1.09, 1.73)] with adult-onset asthma. Univariate models did not yield any association between air pollution and immune markers. However, mediation analyses indicated that 15% of the effect of air pollution on risk of adult-onset asthma was mediated through the immune system when considering all immune markers as a latent variable (path coefficient (β) = 0.09; 95% CI: (-0.02, 0.20)). This effect appeared to be stronger for allergic asthma (22%; β = 0.12; 95% CI: (-0.03, 0.27)) and overweight subjects (27%; β = 0.19; 95% CI: (-0.004, 0.38)). Our results provides supportive evidence for a mediating effect of the immune system in the association between air pollution and adult-onset asthma.
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Affiliation(s)
- Nahid Mostafavi
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, 3584 CM, Utrecht, the Netherlands
| | - Ayoung Jeong
- Swiss Tropical and Public Health (TPH) Institute, Basel, Switzerland.,Department of Public Health, University of Basel, Basel, Switzerland
| | - Jelle Vlaanderen
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, 3584 CM, Utrecht, the Netherlands
| | - Medea Imboden
- Swiss Tropical and Public Health (TPH) Institute, Basel, Switzerland.,Department of Public Health, University of Basel, Basel, Switzerland
| | - Paolo Vineis
- Italian Institute for Genomic Medicine (IIGM), Turin, Italy.,Medical Research Council-Public Health England Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
| | - Debbie Jarvis
- Department of Public Health Sciences, King's College, London, UK
| | | | - Nicole Probst-Hensch
- Swiss Tropical and Public Health (TPH) Institute, Basel, Switzerland.,Department of Public Health, University of Basel, Basel, Switzerland
| | - Roel Vermeulen
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, 3584 CM, Utrecht, the Netherlands. .,Medical Research Council-Public Health England Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom. .,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.
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29
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Ierodiakonou D, Coull BA, Zanobetti A, Postma DS, Boezen HM, Vonk JM, McKone EF, Schildcrout JS, Koppelman GH, Croteau-Chonka DC, Lumley T, Koutrakis P, Schwartz J, Gold DR, Weiss ST. Pathway analysis of a genome-wide gene by air pollution interaction study in asthmatic children. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2019; 29:539-547. [PMID: 31028280 PMCID: PMC10730425 DOI: 10.1038/s41370-019-0136-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 11/23/2018] [Accepted: 03/08/2019] [Indexed: 05/05/2023]
Abstract
OBJECTIVES We aimed to investigate the role of genetics in the respiratory response of asthmatic children to air pollution, with a genome-wide level analysis of gene by nitrogen dioxide (NO2) and carbon monoxide (CO) interaction on lung function and to identify biological pathways involved. METHODS We used a two-step method for fast linear mixed model computations for genome-wide association studies, exploring whether variants modify the longitudinal relationship between 4-month average pollution and post-bronchodilator FEV1 in 522 Caucasian and 88 African-American asthmatic children. Top hits were confirmed with classic linear mixed-effect models. We used the improved gene set enrichment analysis for GWAS (i-GSEA4GWAS) to identify plausible pathways. RESULTS Two SNPs near the EPHA3 (rs13090972 and rs958144) and one in TXNDC8 (rs7041938) showed significant interactions with NO2 in Caucasians but we did not replicate this locus in African-Americans. SNP-CO interactions did not reach genome-wide significance. The i-GSEA4GWAS showed a pathway linked to the HO-1/CO system to be associated with CO-related FEV1 changes. For NO2-related FEV1 responses, we identified pathways involved in cellular adhesion, oxidative stress, inflammation, and metabolic responses. CONCLUSION The host lung function response to long-term exposure to pollution is linked to genes involved in cellular adhesion, oxidative stress, inflammatory, and metabolic pathways.
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Affiliation(s)
- Despo Ierodiakonou
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
- Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Brent A Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Antonella Zanobetti
- Environmental Epidemiology and Risk Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Dirkje S Postma
- Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Pulmonology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - H Marike Boezen
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Judith M Vonk
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Edward F McKone
- Department of Respiratory Medicine, St. Vincent University Hospital, Dublin, Ireland
| | - Jonathan S Schildcrout
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, United States
| | - Gerard H Koppelman
- Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Pediatric Pulmonology and Pediatric Allergology-Beatrix Children Hospital, University of Groningen, University Medical Center, Groningen, The Netherlands
| | - Damien C Croteau-Chonka
- Channing Division of Network Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, MA, United States
| | - Thomas Lumley
- Department of Biostatistics, University of Auckland, Auckland, New Zealand
| | - Petros Koutrakis
- Environmental Epidemiology and Risk Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Joel Schwartz
- Environmental Epidemiology and Risk Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Diane R Gold
- Environmental Epidemiology and Risk Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States
- Channing Division of Network Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, MA, United States
| | - Scott T Weiss
- Channing Division of Network Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, MA, United States
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30
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Tsai YG, Wen YS, Wang JY, Yang KD, Sun HL, Liou JH, Lin CY. Complement regulatory protein CD46 induces autophagy against oxidative stress-mediated apoptosis in normal and asthmatic airway epithelium. Sci Rep 2018; 8:12973. [PMID: 30154478 PMCID: PMC6113329 DOI: 10.1038/s41598-018-31317-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 06/11/2018] [Indexed: 01/07/2023] Open
Abstract
Autophagy plays a major role in defending against oxidative stress in respiratory epithelial cells. The complement regulatory protein CD46 can enhance autophagy and decrease local complement activation at sites of inflammation. This study investigated the mechanism by which CD46 protects against oxidative stress-mediated apoptosis in respiratory epithelium in asthmatic patients. Nasal mucosa samples were obtained from 60 adults with mild asthma who received turbinectomy and 30 controls. A decreased expression of CD46 and increased apoptosis were noted in the damaged nasal epithelium from the asthmatic patients. Primary epithelial cells cultured with Dermatophagoides pteronyssinus 2 showed decreased CD46 and increased cleaved CASPASE-3A expressions. Crosslinking CD46 mAb could induce the formation of autophagosomes and LC3-II expression in primary epithelial cells. CD46 engagement could induce autophagy against hydrogen peroxide-induced epithelial cell death, whereas the autophagy inhibitor 3-methyladenine decreased this effect. In addition, CD46 engagement decreased the expressions of PRO-IL-1β and NLRP3, enhanced the expression of scaffold protein GOPC, and diminished hydrogen peroxide-induced 8-OHdG, IL-1β and IL-6 production. Silencing ATG5 in human lung epithelial A549 cells decreased CD46-activated autophagy with LC3-II. CD46 induced autophagy and decreased the oxidative stress-mediated apoptosis of respiratory epithelium, and this may offer a new therapeutic strategy to treat asthma.
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Affiliation(s)
- Yi-Giien Tsai
- Department of Pediatrics, Changhua Christian Children's Hospital, Changhua, Taiwan.,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yung-Sung Wen
- Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - Jiu-Yao Wang
- Department of Pediatrics, College of Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Kuender D Yang
- Mackay Children's Hospital, and Institute of Biomedical Sciences, Mackay Medical College, Taipei, Taiwan
| | - Hai-Lun Sun
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Jia-Hung Liou
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Ching-Yuang Lin
- Clinical Immunological Center and College of Medicine, China Medical University Hospital, Taichung, Taiwan.
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31
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Henriquez AR, Snow SJ, Schladweiler MC, Miller CN, Dye JA, Ledbetter AD, Richards JE, Mauge-Lewis K, McGee MA, Kodavanti UP. Adrenergic and glucocorticoid receptor antagonists reduce ozone-induced lung injury and inflammation. Toxicol Appl Pharmacol 2017; 339:161-171. [PMID: 29247675 DOI: 10.1016/j.taap.2017.12.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/05/2017] [Accepted: 12/12/2017] [Indexed: 10/18/2022]
Abstract
Recent studies showed that the circulating stress hormones, epinephrine and corticosterone/cortisol, are involved in mediating ozone-induced pulmonary effects through the activation of the sympathetic-adrenal-medullary (SAM) and hypothalamus-pituitary-adrenal (HPA) axes. Hence, we examined the role of adrenergic and glucocorticoid receptor inhibition in ozone-induced pulmonary injury and inflammation. Male 12-week old Wistar-Kyoto rats were pretreated daily for 7days with propranolol (PROP; a non-selective β adrenergic receptor [AR] antagonist, 10mg/kg, i.p.), mifepristone (MIFE; a glucocorticoid receptor [GR] antagonist, 30mg/kg, s.c.), both drugs (PROP+MIFE), or respective vehicles, and then exposed to air or ozone (0.8ppm), 4h/d for 1 or 2 consecutive days while continuing drug treatment. Ozone exposure alone led to increased peak expiratory flow rates and enhanced pause (Penh); with greater increases by day 2. Receptors blockade minimally affected ventilation in either air- or ozone-exposed rats. Ozone exposure alone was also associated with marked increases in pulmonary vascular leakage, macrophage activation, neutrophilic inflammation and lymphopenia. Notably, PROP, MIFE and PROP+MIFE pretreatments significantly reduced ozone-induced pulmonary vascular leakage; whereas PROP or PROP+MIFE reduced neutrophilic inflammation. PROP also reduced ozone-induced increases in bronchoalveolar lavage fluid (BALF) IL-6 and TNF-α proteins and/or lung Il6 and Tnfα mRNA. MIFE and PROP+MIFE pretreatments reduced ozone-induced increases in BALF N-acetyl glucosaminidase activity, and lymphopenia. We conclude that stress hormones released after ozone exposure modulate pulmonary injury and inflammatory effects through AR and GR in a receptor-specific manner. Individuals with pulmonary diseases receiving AR and GR-related therapy might experience changed sensitivity to air pollution.
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Affiliation(s)
- Andres R Henriquez
- Curriculum in Toxicology, University of North Carolina-Chapel Hill, Chapel Hill, NC, United States
| | - Samantha J Snow
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Mette C Schladweiler
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Colette N Miller
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Janice A Dye
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Allen D Ledbetter
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Judy E Richards
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Kevin Mauge-Lewis
- Curriculum in Toxicology, University of North Carolina-Chapel Hill, Chapel Hill, NC, United States
| | - Marie A McGee
- Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
| | - Urmila P Kodavanti
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States.
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Gruzieva O, Merid SK, Gref A, Gajulapuri A, Lemonnier N, Ballereau S, Gigante B, Kere J, Auffray C, Melén E, Pershagen G. Exposure to Traffic-Related Air Pollution and Serum Inflammatory Cytokines in Children. ENVIRONMENTAL HEALTH PERSPECTIVES 2017; 125:067007. [PMID: 28669936 PMCID: PMC5714301 DOI: 10.1289/ehp460] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 10/20/2016] [Accepted: 11/07/2016] [Indexed: 05/12/2023]
Abstract
BACKGROUND Long-term exposure to ambient air pollution can lead to adverse health effects in children; however, underlying biological mechanisms are not fully understood. OBJECTIVES We evaluated the effect of air pollution exposure during different time periods on mRNA expression as well as circulating levels of inflammatory cytokines in children. METHODS We measured a panel of 10 inflammatory markers in peripheral blood samples from 670 8-y-old children in the Barn/Child, Allergy, Milieu, Stockholm, Epidemiology (BAMSE) birth cohort. Outdoor concentrations of nitrogen dioxide (NO2) and particulate matter (PM) with aerodynamic diameter <10 μm (PM10) from road traffic were estimated for residential, daycare, and school addresses using dispersion modeling. Time-weighted average exposures during infancy and at biosampling were linked to serum cytokine levels using linear regression analysis. Furthermore, gene expression data from 16-year-olds in BAMSE (n=238) were used to evaluate links between air pollution exposure and expression of genes coding for the studied inflammatory markers. RESULTS A 10 μg/m3 increase of NO2 exposure during infancy was associated with a 13.6% (95% confidence interval (CI): 0.8; 28.1%) increase in interleukin-6 (IL-6) levels, as well as with a 27.8% (95% CI: 4.6, 56.2%) increase in IL-10 levels, the latter limited to children with asthma. However, no clear associations were observed for current exposure. Results were similar using PM10, which showed a high correlation with NO2. The functional analysis identified several differentially expressed genes in response to air pollution exposure during infancy, including IL10, IL13, and TNF;. CONCLUSION Our results indicate alterations in systemic inflammatory markers in 8-y-old children in relation to early-life exposure to traffic-related air pollution. https://doi.org/10.1289/EHP460.
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Affiliation(s)
- Olena Gruzieva
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Simon Kebede Merid
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anna Gref
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ashwini Gajulapuri
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Nathanaël Lemonnier
- European Institute for Systems Biology and Medicine, CNRS-ENS-UCBL, Université de Lyon, Lyon, France
| | - Stéphane Ballereau
- European Institute for Systems Biology and Medicine, CNRS-ENS-UCBL, Université de Lyon, Lyon, France
| | - Bruna Gigante
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Juha Kere
- Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Charles Auffray
- European Institute for Systems Biology and Medicine, CNRS-ENS-UCBL, Université de Lyon, Lyon, France
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Paediatrics, Sachs’ Children’s Hospital, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
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Duan L, Li J, Ma P, Yang X, Xu S. Vitamin E antagonizes ozone-induced asthma exacerbation in Balb/c mice through the Nrf2 pathway. Food Chem Toxicol 2017. [PMID: 28624471 DOI: 10.1016/j.fct.2017.06.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Millions of people are regularly exposed to ozone, a gas known to contribute significantly to worsening the symptoms of patients with asthma. However, the mechanisms underlying these ozone exacerbation effects are not fully understood. In this study, we examined the exacerbation effect of ozone in OVA-induced asthma mice and tried to demonstrate the protective mechanism of vitamin E (VE). An asthma mouse model was established, and used to identify the exacerbating effects of ozone by assessing cytokine and serum immunoglobulin concentrations, airway leukocyte infiltration, histopathological changes in lung tissues, and airway hyper-responsiveness. We then determined the amount of reactive oxygen species (ROS) accumulated, the extent to which VE induced ROS elimination, and examined the antagonistic effects of VE on the ozone-induced exacerbating effects. This study showed that 1-ppm ozone exposure could exacerbate OVA-induced asthma in mice. More importantly we found that ozone induced oxidative stress in asthmatic airways may lead to the inhibition of Nuclear factor-erythroid 2-related factor 2 (Nrf2), and may subsequently induce even more exaggerated oxidative stress associated with asthma exacerbation. Through VE induced Nrf2 activation and the subsequent increase in Nrf2 target protein expression, this study suggests a novel mechanism for alleviating ozone exacerbated asthma symptoms.
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Affiliation(s)
- Liju Duan
- Key Laboratory of Environment and Health (Huazhong University of Science and Technology), Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jinquan Li
- Section of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Ping Ma
- Research Center of Basic Medical Sciences, School of Basic Medical Sciences, Hubei University of Science and Technology, Xianning 437100, China
| | - Xu Yang
- Section of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Shunqing Xu
- Key Laboratory of Environment and Health (Huazhong University of Science and Technology), Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Henriquez A, House J, Miller DB, Snow SJ, Fisher A, Ren H, Schladweiler MC, Ledbetter AD, Wright F, Kodavanti UP. Adrenal-derived stress hormones modulate ozone-induced lung injury and inflammation. Toxicol Appl Pharmacol 2017. [PMID: 28623178 DOI: 10.1016/j.taap.2017.06.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ozone-induced systemic effects are modulated through activation of the neuro-hormonal stress response pathway. Adrenal demedullation (DEMED) or bilateral total adrenalectomy (ADREX) inhibits systemic and pulmonary effects of acute ozone exposure. To understand the influence of adrenal-derived stress hormones in mediating ozone-induced lung injury/inflammation, we assessed global gene expression (mRNA sequencing) and selected proteins in lung tissues from male Wistar-Kyoto rats that underwent DEMED, ADREX, or sham surgery (SHAM) prior to their exposure to air or ozone (1ppm), 4h/day for 1 or 2days. Ozone exposure significantly changed the expression of over 2300 genes in lungs of SHAM rats, and these changes were markedly reduced in DEMED and ADREX rats. SHAM surgery but not DEMED or ADREX resulted in activation of multiple ozone-responsive pathways, including glucocorticoid, acute phase response, NRF2, and PI3K-AKT. Predicted targets from sequencing data showed a similarity between transcriptional changes induced by ozone and adrenergic and steroidal modulation of effects in SHAM but not ADREX rats. Ozone-induced increases in lung Il6 in SHAM rats coincided with neutrophilic inflammation, but were diminished in DEMED and ADREX rats. Although ozone exposure in SHAM rats did not significantly alter mRNA expression of Ifnγ and Il-4, the IL-4 protein and ratio of IL-4 to IFNγ (IL-4/IFNγ) proteins increased suggesting a tendency for a Th2 response. This did not occur in ADREX and DEMED rats. We demonstrate that ozone-induced lung injury and neutrophilic inflammation require the presence of circulating epinephrine and corticosterone, which transcriptionally regulates signaling mechanisms involved in this response.
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Affiliation(s)
- Andres Henriquez
- Curriculum in Toxicology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - John House
- Bioinformatics Research Center, North Carolina State University, Raleigh, NC, United States
| | - Desinia B Miller
- Curriculum in Toxicology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Samantha J Snow
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Anna Fisher
- Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Hongzu Ren
- Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Mette C Schladweiler
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Allen D Ledbetter
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Fred Wright
- Bioinformatics Research Center, North Carolina State University, Raleigh, NC, United States
| | - Urmila P Kodavanti
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States.
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Reinmuth-Selzle K, Kampf CJ, Lucas K, Lang-Yona N, Fröhlich-Nowoisky J, Shiraiwa M, Lakey PSJ, Lai S, Liu F, Kunert AT, Ziegler K, Shen F, Sgarbanti R, Weber B, Bellinghausen I, Saloga J, Weller MG, Duschl A, Schuppan D, Pöschl U. Air Pollution and Climate Change Effects on Allergies in the Anthropocene: Abundance, Interaction, and Modification of Allergens and Adjuvants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:4119-4141. [PMID: 28326768 PMCID: PMC5453620 DOI: 10.1021/acs.est.6b04908] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 03/07/2017] [Accepted: 03/22/2017] [Indexed: 05/13/2023]
Abstract
Air pollution and climate change are potential drivers for the increasing burden of allergic diseases. The molecular mechanisms by which air pollutants and climate parameters may influence allergic diseases, however, are complex and elusive. This article provides an overview of physical, chemical and biological interactions between air pollution, climate change, allergens, adjuvants and the immune system, addressing how these interactions may promote the development of allergies. We reviewed and synthesized key findings from atmospheric, climate, and biomedical research. The current state of knowledge, open questions, and future research perspectives are outlined and discussed. The Anthropocene, as the present era of globally pervasive anthropogenic influence on planet Earth and, thus, on the human environment, is characterized by a strong increase of carbon dioxide, ozone, nitrogen oxides, and combustion- or traffic-related particulate matter in the atmosphere. These environmental factors can enhance the abundance and induce chemical modifications of allergens, increase oxidative stress in the human body, and skew the immune system toward allergic reactions. In particular, air pollutants can act as adjuvants and alter the immunogenicity of allergenic proteins, while climate change affects the atmospheric abundance and human exposure to bioaerosols and aeroallergens. To fully understand and effectively mitigate the adverse effects of air pollution and climate change on allergic diseases, several challenges remain to be resolved. Among these are the identification and quantification of immunochemical reaction pathways involving allergens and adjuvants under relevant environmental and physiological conditions.
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Affiliation(s)
| | - Christopher J. Kampf
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
- Institute
of Inorganic and Analytical Chemistry, Johannes
Gutenberg University, Mainz, 55128, Germany
| | - Kurt Lucas
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Naama Lang-Yona
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | | | - Manabu Shiraiwa
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Pascale S. J. Lakey
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Senchao Lai
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
- South
China University of Technology, School of
Environment and Energy, Guangzhou, 510006, China
| | - Fobang Liu
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Anna T. Kunert
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Kira Ziegler
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Fangxia Shen
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Rossella Sgarbanti
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Bettina Weber
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Iris Bellinghausen
- Department
of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, 55131, Germany
| | - Joachim Saloga
- Department
of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, 55131, Germany
| | - Michael G. Weller
- Division
1.5 Protein Analysis, Federal Institute
for Materials Research and Testing (BAM), Berlin, 12489, Germany
| | - Albert Duschl
- Department
of Molecular Biology, University of Salzburg, 5020 Salzburg, Austria
| | - Detlef Schuppan
- Institute
of Translational Immunology and Research Center for Immunotherapy,
Institute of Translational Immunology, University Medical Center, Johannes Gutenberg University, Mainz, 55131 Germany
- Division
of Gastroenterology, Beth Israel Deaconess
Medical Center and Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Ulrich Pöschl
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
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Orellano P, Quaranta N, Reynoso J, Balbi B, Vasquez J. Effect of outdoor air pollution on asthma exacerbations in children and adults: Systematic review and multilevel meta-analysis. PLoS One 2017; 12:e0174050. [PMID: 28319180 PMCID: PMC5358780 DOI: 10.1371/journal.pone.0174050] [Citation(s) in RCA: 268] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 03/02/2017] [Indexed: 12/31/2022] Open
Abstract
Background Several observational studies have suggested that outdoor air pollution may induce or aggravate asthma. However, epidemiological results are inconclusive due to the presence of numerous moderators which influence this association. The goal of this study was to assess the relationship between outdoor air pollutants and moderate or severe asthma exacerbations in children and adults through a systematic review and multilevel meta-analysis. Material and methods We searched studies published in English on PubMed, Scopus, and Google Scholar between January 2000 and October 2016. Studies following a case-crossover design with records of emergency departments and/or hospital admissions as a surrogate of moderate or severe asthma exacerbations were selected. A multilevel meta-analysis was employed, taking into account the potential clustering effects within studies examining more than one lag. Odds ratios (ORs) and 95% confidence intervals were estimated. A subgroup analysis in children aged 0 to 18 years and a sensitivity analysis based on the quality of the included studies as defined in the Newcastle-Ottawa Scale were performed. Publication bias was evaluated through visual inspection of funnel plots and by a complementary search of grey literature. (Prospero Registration number CRD42015032323). Results Database searches retrieved 208 records, and finally 22 studies were selected for quantitative analysis. All pollutants except SO2 and PM10 showed a significant association with asthma exacerbations (NO2: 1.024; 95% CI: 1.005,1.043, SO2: 1.039; 95% CI: 0.988,1.094), PM10: 1.024; 95% CI: 0.995,1.053, PM2.5: 1.028; 95% CI: 1.009,1.047, CO: 1.045; 95% CI: 1.005,1.086, O3: 1.032; 95% CI: 1.005,1.060. In children, the association was significant for NO2, SO2 and PM2.5. Conclusion This meta-analysis provides evidence of the association between selected air pollutants and asthma exacerbations for different lags.
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Affiliation(s)
- Pablo Orellano
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Universidad Tecnológica Nacional, Facultad Regional San Nicolás, San Nicolás, Argentina
| | - Nancy Quaranta
- Universidad Tecnológica Nacional, Facultad Regional San Nicolás, San Nicolás, Argentina.,Comisión de Investigaciones Científicas (CIC), La Plata, Argentina
| | - Julieta Reynoso
- Hospital Interzonal General de Agudos "San Felipe", San Nicolás, Argentina
| | - Brenda Balbi
- Hospital Interzonal General de Agudos "San Felipe", San Nicolás, Argentina
| | - Julia Vasquez
- Hospital Interzonal General de Agudos "San Felipe", San Nicolás, Argentina
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Abstract
PURPOSE OF REVIEW The present review summarizes the recent literature on the relation between chronic workplace irritant exposures and asthma, focusing on exposures of low to moderate levels. We discuss results from epidemiological surveys, potential biological mechanisms, and needs for further research. These aspects are largely illustrated by studies on exposure to cleaning products. RECENT FINDINGS Recent results from nine population-based and workplace-based epidemiological studies, mostly cross-sectional, found an increased risk of both new-onset and work-exacerbated asthma among participants exposed to moderate level of irritants and/or cleaning products. SUMMARY Evidence of a causal effect of chronic workplace irritant exposure in new-onset asthma remains limited, mainly because of a lack of longitudinal studies and the difficulty to evaluate irritant exposures. However, recent epidemiological studies strengthen the evidence of an effect of chronic exposure to irritants in work-related asthma. The underlying mechanism remains unknown but may be related to oxidative stress, neurogenic inflammation and dual irritant and adjuvant effects. However, disentangling chronic irritant effects from either acute irritant-induced asthma or immunological low molecular weight agent-induced asthma is difficult for some agents. Further research is needed to improve assessment of irritant exposures and identify biomarkers.
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Rosser F, Forno E, Brehm J, Han YY, Boutaoui N, Colón-Semidey A, Alvarez M, Acosta-Pérez E, Kurland KS, Alcorn JF, Canino G, Celedón JC. Proximity to a Major Road and Plasma Cytokines in School-Aged Children. PEDIATRIC ALLERGY IMMUNOLOGY AND PULMONOLOGY 2016; 29:111-117. [PMID: 28265480 PMCID: PMC5314728 DOI: 10.1089/ped.2016.0649] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/26/2016] [Indexed: 01/12/2023]
Abstract
Traffic-related air pollution (TRAP) may affect immune responses, including those in the TH2 and TH17 pathways. To examine whether TRAP is associated with plasma level of TH17-, TH1-, and TH2-related cytokines in children with and without asthma, a cross-sectional study of 577 children (ages 6–14 years) with (n = 294) and without (n = 283) asthma in San Juan (Puerto Rico) was performed. Residential distance to a major road was estimated using geocoded home addresses for study participants. A panel of 14 cytokines, enriched for the TH17 pathway, was measured in plasma. Asthma was defined as physician-diagnosed asthma and current wheeze. Multivariable linear regression was used to examine the association of residential distance to a major road (a marker of TRAP), asthma, and cytokine levels. Among all participating children, residential proximity to a major road was significantly associated with increased plasma level of IL-31, even after adjustment for relevant covariates and correction for multiple testing. The presence of asthma modified the estimated effect of the residential distance to a major road on plasma TNF-α (P for interaction = 0.00047). Although living farther from a major road was significantly associated with lower TNF-α level in control subjects, no such decrease was seen in children with asthma. In a direct comparison of cases and control subjects, children with asthma had significantly higher levels of IL-1β, IL-22, and IL-33 than control subjects. TRAP is associated with increased levels of proinflammatory cytokines among Puerto Rican children, who belong to an ethnic group with high risk for asthma.
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Affiliation(s)
- Franziska Rosser
- Division of Pulmonary Medicine, Allergy, and Immunology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Erick Forno
- Division of Pulmonary Medicine, Allergy, and Immunology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - John Brehm
- Division of Pulmonary Medicine, Allergy, and Immunology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yueh-Ying Han
- Division of Pulmonary Medicine, Allergy, and Immunology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Nadia Boutaoui
- Division of Pulmonary Medicine, Allergy, and Immunology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Angel Colón-Semidey
- Department of Pediatrics, Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - María Alvarez
- Department of Pediatrics, Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Edna Acosta-Pérez
- Department of Pediatrics, Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Kristen S. Kurland
- H. John Heinz III College and School of Architecture, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | - John F. Alcorn
- Division of Pulmonary Medicine, Allergy, and Immunology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Glorisa Canino
- Department of Pediatrics, Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Juan C. Celedón
- Division of Pulmonary Medicine, Allergy, and Immunology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
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An official American Thoracic Society Workshop Report: presentations and discussion of the fifth Jack Pepys Workshop on Asthma in the Workplace. Comparisons between asthma in the workplace and non-work-related asthma. Ann Am Thorac Soc 2016. [PMID: 26203621 DOI: 10.1513/annalsats.201505-281st] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The fifth Jack Pepys Workshop on Asthma in the Workplace focused on the similarities and differences of work-related asthma (WRA) and non-work-related asthma (non-WRA). WRA includes occupational asthma (OA) and work-exacerbated asthma (WEA). There are few biological differences in the mechanisms of sensitization to environmental and occupational allergens. Non-WRA and OA, when due to high-molecular-weight agents, are both IgE mediated; it is uncertain whether OA due to low-molecular-weight agents is also IgE mediated. Risk factors for OA include female sex, a history of upper airway symptoms, and a history of bronchial hyperresponsiveness. Atopy is a risk factor for OA due to high-molecular-weight agents, and exposure to cleaning agents is a risk factor for both OA and non-WRA. WEA is important among workers with preexisting asthma and may overlap with irritant-induced asthma, a type of OA. Induced sputum cytology can confirm airway inflammation, but specific inhalation challenge is the reference standard diagnostic test. Inhalation challenges are relatively safe, with the most severe reactions occurring with low-molecular-weight agents. Indirect health care costs account for about 50% of total asthma costs. Workers with poor asthma control (WRA or non-WRA) are less likely to be employed. Income loss is a major contributor to the indirect costs of WRA. Overall, asthma outcomes probably are worse for adult-onset than for childhood-onset asthma but better for OA than adult-onset non-WRA. Important aspects of management of OA are rapid and proper confirmation of the diagnosis and reduction of exposure to sensitizers or irritants at work and home.
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Krämer U, Buters J, Ring J, Behrendt H. Allergie und Umwelt. ALLERGOLOGIE 2016. [DOI: 10.1007/978-3-642-37203-2_40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Aggarwal P, Jain S. Impact of air pollutants from surface transport sources on human health: A modeling and epidemiological approach. ENVIRONMENT INTERNATIONAL 2015; 83:146-57. [PMID: 26142107 DOI: 10.1016/j.envint.2015.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/04/2015] [Accepted: 06/17/2015] [Indexed: 05/22/2023]
Abstract
This study adopted an integrated 'source-to-receptor' assessment paradigm in order to determine the effects of emissions from passenger transport on urban air quality and human health in the megacity, Delhi. The emission modeling was carried out for the base year 2007 and three alternate (ALT) policy scenarios along with a business as usual (BAU) scenario for the year 2021. An Activity-Structure-Emission Factor (ASF) framework was adapted for emission modeling, followed by a grid-wise air quality assessment using AERMOD and a health impact assessment using an epidemiological approach. It was observed that a 2021-ALT-III scenario resulted in a maximum concentration reduction of ~24%, ~42% and ~58% for carbon monoxide (CO), nitrogen dioxide (NO2) and particulate matter (PM), respectively, compared to a 2021-BAU scenario. Further, it results in significant reductions in respiratory and cardiovascular mortality, morbidity and Disability Adjusted Life Years (DALY) by 41% and 58% on exposure to PM2.5 and NO2 concentrations when compared to the 2021-BAU scenario, respectively. In other words, a mix of proposed policy interventions namely the full-phased introduction of the Integrated Mass Transit System, fixed bus speed, stringent vehicle emission norms and a hike in parking fees for private vehicles would help in strengthening the capability of passenger transport to cater to a growing transport demand with a minimum health burden in the Delhi region. Further, the study estimated that the transport of goods would be responsible for ~5.5% additional VKT in the 2021-BAU scenario; however, it will contribute ~49% and ~55% additional NO2 and PM2.5 concentrations, respectively, in the Delhi region. Implementation of diesel particulate filters for goods vehicles in the 2021-ALT-IV-O scenario would help in the reduction of ~87% of PM2.5 concentration, compared to the 2021-BAU scenario; translating into a gain of 1267 and 505 DALY per million people from exposure to PM2.5 and NO2 concentrations, respectively. These findings suggest that significant health benefits are possible if goods transport is also included while designing strategies and policies in order to improve the overall urban air quality and minimize health impacts in city areas.
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Affiliation(s)
- Preeti Aggarwal
- Department of Natural Resources, TERI University, 10, Institutional Area, Vasant Kunj, New Delhi 110070, India
| | - Suresh Jain
- Department of Natural Resources, TERI University, 10, Institutional Area, Vasant Kunj, New Delhi 110070, India; Department of Energy and Environment, TERI University, 10, Institutional Area, Vasant Kunj, New Delhi 110070, India.
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Yang SI, Kim BJ, Lee SY, Kim HB, Lee CM, Yu J, Kang MJ, Yu HS, Lee E, Jung YH, Kim HY, Seo JH, Kwon JW, Song DJ, Jang G, Kim WK, Shim JY, Lee SY, Yang HJ, Suh DI, Hong SA, Choi KY, Shin YH, Ahn K, Kim KW, Kim EJ, Hong SJ. Prenatal Particulate Matter/Tobacco Smoke Increases Infants' Respiratory Infections: COCOA Study. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2015; 7:573-82. [PMID: 26333704 PMCID: PMC4605930 DOI: 10.4168/aair.2015.7.6.573] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 04/23/2015] [Accepted: 05/04/2015] [Indexed: 12/27/2022]
Abstract
Purpose To investigate whether prenatal exposure to indoor fine particulate matter (PM2.5) and environmental tobacco smoke (ETS) affects susceptibility to respiratory tract infections (RTIs) in infancy, to compare their effects between prenatal and postnatal exposure, and to determine whether genetic factors modify these environmental effects. Methods The study population consisted of 307 birth cohort infants. A diagnosis of RTIs was based on parental report of a physician's diagnosis. Indoor PM2.5 and ETS levels were measured during pregnancy and infancy. TaqMan was used for genotyping of nuclear factor erythroid 2-related factor (Nrf2) (rs6726395), glutathione-S-transferase-pi (GSTP) 1 (rs1695), and glutathione-S-transferase-mu (GSTM) 1. Microarrays were used for genome-wide methylation analysis. Results Prenatal exposure to indoor PM2.5 increased the susceptibility of lower RTIs (LRTIs) in infancy (adjusted odds ratio [aOR]=2.11). In terms of combined exposure to both indoor PM2.5 and ETS, prenatal exposure to both pollutants increased susceptibility to LRTIs (aOR=6.56); however, this association was not found for postnatal exposure. The Nrf2 GG (aOR=23.69), GSTM1 null (aOR=8.18), and GSTP1 AG or GG (aOR=7.37) genotypes increased the combined LRTIs-promoting effects of prenatal exposure to the 2 indoor pollutants. Such effects of prenatal indoor PM2.5 and ETS exposure were not found for upper RTIs. Conclusions Prenatal exposure to both indoor PM2.5 and ETS may increase susceptibility to LRTIs. This effect can be modified by polymorphisms in reactive oxygen species-related genes.
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Affiliation(s)
- Song I Yang
- Department of Pediatrics, Hallym Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Byoung Ju Kim
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - So Yeon Lee
- Department of Pediatrics, Hallym Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Hyo Bin Kim
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Cheol Min Lee
- Institute of Environmental and Industrial Medicine, Hanyang University, Seoul, Korea
| | - Jinho Yu
- Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Mi Jin Kang
- Asan Institute for Life Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ho Sung Yu
- Asan Institute for Life Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Lee
- Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Ho Jung
- Department of Pediatrics, Bundang CHA Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Hyung Young Kim
- Department of Pediatrics, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ju Hee Seo
- Department of Pediatrics, Korea Cancer Center Hospital, Seoul, Korea
| | - Ji Won Kwon
- Department of Pediatrics, Seoul National University Bundang Hospital, Seungnam, Korea
| | - Dae Jin Song
- Department of Pediatrics, College of Medicine, Korea University, Seoul, Korea
| | - Gwangcheon Jang
- Department of Pediatrics, National Health Insurance Corporation Ilsan Hospital, Goyang, Korea
| | - Woo Kyung Kim
- Department of Pediatrics and the Allergy and Respiratory Research Laboratory, Inje University Seoul Paik Hospital, Seoul, Korea
| | - Jung Yeon Shim
- Department of Pediatrics, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Soo Young Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Hyeon Jong Yang
- Department of Pediatrics, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Dong In Suh
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Seo Ah Hong
- Asan Institute for Life Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kil Yong Choi
- Asan Institute for Life Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Youn Ho Shin
- Department of Pediatrics, Gangnam CHA Medical Center, CHA University College of Medicine, Seoul, Korea
| | - Kangmo Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyung Won Kim
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Jin Kim
- Division of Allergy and Chronic Respiratory diseases, Center for of Biomedical Sciences, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Osong, Korea
| | - Soo Jong Hong
- Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Sundaresan AS, Hirsch AG, Storm M, Tan BK, Kennedy TL, Greene JS, Kern RC, Schwartz BS. Occupational and environmental risk factors for chronic rhinosinusitis: a systematic review. Int Forum Allergy Rhinol 2015; 5:996-1003. [PMID: 26077513 DOI: 10.1002/alr.21573] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 05/07/2015] [Accepted: 05/14/2015] [Indexed: 02/05/2023]
Abstract
BACKGROUND Chronic rhinosinusitis (CRS) is a prevalent and disabling paranasal sinus disease, with a likely multifactorial etiology potentially including hazardous occupational and environmental exposures. We completed a systematic review of the occupational and environmental literature to evaluate the quality of evidence of the role that hazardous exposures might play in CRS. METHODS We searched PubMed for studies of CRS and following exposure categories: occupation, employment, work, industry, air pollution, agriculture, farming, environment, chemicals, roadways, disaster, and traffic. We abstracted information from the final set of articles across 6 primary domains: study design; population; exposures evaluated; exposure assessment; CRS definition; and results. RESULTS We identified 41 articles from 1080 manuscripts: 37 occupational risk papers, 1 environmental risk paper, and 3 papers studying both categories of exposures. None of the 41 studies used a CRS definition consistent with current diagnostic guidelines. Exposure assessment was generally dependent on self-report or binary measurements of exposure based on industry of employment. Only grain, dairy, and swine operations among farmers were evaluated by more than 1 study using a common approach to defining CRS, but employment in these settings was not consistently associated with CRS. The multiple other exposures did not meet quality standards for reporting associations or were not evaluated by more than 1 study. CONCLUSION The current state of the literature allows us to make very few conclusions about the role of hazardous occupational or environmental exposures in CRS, leaving a critical knowledge gap regarding potentially modifiable risk factors for disease onset and progression.
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Affiliation(s)
| | | | - Margaret Storm
- Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, MD
| | - Bruce K Tan
- Department of Otolaryngology-Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Thomas L Kennedy
- Department of Otolaryngology-Head and Neck Surgery, Geisinger Health System, Danville, PA
| | - J Scott Greene
- Department of Otolaryngology-Head and Neck Surgery, Geisinger Health System, Danville, PA
| | - Robert C Kern
- Department of Otolaryngology-Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Brian S Schwartz
- Center for Health Research, Geisinger Health System, Danville, PA.,Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD
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Klümper C, Krämer U, Lehmann I, von Berg A, Berdel D, Herberth G, Beckmann C, Link E, Heinrich J, Hoffmann B, Schins RPF. Air pollution and cytokine responsiveness in asthmatic and non-asthmatic children. ENVIRONMENTAL RESEARCH 2015; 138:381-90. [PMID: 25769127 DOI: 10.1016/j.envres.2015.02.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 02/23/2015] [Accepted: 02/26/2015] [Indexed: 05/23/2023]
Abstract
Epidemiological studies indicate that asthmatic children are more susceptible to traffic-related air pollution exposure than non-asthmatic children. Local and systemic inflammation in combination with oxidative stress have been suggested as a possible susceptibility factor. We investigated effect modification by asthma status for the association between air pollution exposure and systemic effects using whole blood cytokine responsiveness as an inflammatory marker. The study was nested within the two German birth cohort studies GINIplus and LISAplus and initially designed as a random sub-sample enriched with asthmatic children. Using data from 27 asthmatic and 59 non-asthmatic six-year-old children we measured the production of Interleukin-6 (IL)-6, IL-8, IL-10, monocyte chemotactic protein-1 (MCP-1), tumour necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma) in whole blood after ex-vivo stimulation with urban particulate matter (EHC-93). Air pollution exposure (nitrogen dioxide (NO2), nitrogen oxides (NOx), particulate matter with an aerodynamic diameter <10μm (PM10), particulate matter with an aerodynamic diameter <2.5μm (PM2.5mass), coarse particulate matter (PMcoarse) and PM2.5absorbance (PM2.5abs)) was modelled for children´s home addresses applying land-use regression. To assess effect modification by asthma status linear regression models with multiplicative interaction terms were used. In asthmatics exposure to NO2 was associated with higher production of pro-inflammatory cytokines: adjusted means ratio (MR) 2.22 (95% confidence interval 1.22-4.04) for IL-6 per 2.68µg/m³ NO2. The interaction term between asthma status and NO2 exposure was significant. Results for NOx, PM10, PM2.5mass and PM2.5abs were in the same direction. No association between air pollution and cytokine responsiveness was found in the group of non-asthmatic children and in the overall group. Traffic-related air pollution exposure is associated with higher pro-inflammatory cytokine responsiveness in whole blood of asthmatic children.
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Affiliation(s)
- Claudia Klümper
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany.
| | - Ursula Krämer
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Irina Lehmann
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, Germany
| | - Andrea von Berg
- Research Institute, Children´s Department, Marien-Hospital, Wesel, Germany
| | - Dietrich Berdel
- Research Institute, Children´s Department, Marien-Hospital, Wesel, Germany
| | - Gunda Herberth
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Immunology, Leipzig, Germany
| | - Christina Beckmann
- Research Institute, Children´s Department, Marien-Hospital, Wesel, Germany
| | - Elke Link
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Joachim Heinrich
- Helmholtz Centre Munich, German Research Centre for Environmental Health, Institute of Epidemiology, Munich, Germany
| | - Barbara Hoffmann
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany; Heinrich-Heine University of Düsseldorf, Medical Faculty, Deanery of Medicine, Düsseldorf, Germany
| | - Roel P F Schins
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
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Rosser F, Brehm JM, Forno E, Acosta-Pérez E, Kurland K, Canino G, Celedón JC. Proximity to a major road, vitamin D insufficiency, and severe asthma exacerbations in Puerto Rican children. Am J Respir Crit Care Med 2015; 190:1190-3. [PMID: 25398111 DOI: 10.1164/rccm.201408-1568le] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Franziska Rosser
- 1 University of Pittsburgh School of Medicine Pittsburgh, Pennsylvania
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46
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Effects of polluted air on cardiovascular and hematological parameters after progressive maximal aerobic exercise. Lung 2015; 193:275-81. [PMID: 25604940 DOI: 10.1007/s00408-014-9679-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 12/21/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE Exercising or doing physical activity in polluted air could expose a person to the adverse health effects of air pollution. This study aimed to compare the cardiovascular and hematologic indices following an incremental exercise test (shuttle run) under clean versus polluted air conditions. METHODS Nineteen male athletes aged 21-27 years were assigned to either a trained athletes group (TA, n = 10) or a complete training cessation/detrained athletes group (DA, n = 9) at least 3-4 months after their competitive season. All participants performed the multi-stage shuttle run test on two separate days in either polluted air (37.4 carbon monoxide part per million) or clean air (2.5 carbon monoxide part per million) condition. RESULTS When compared to the clean air environment, progressive incremental exercise in polluted air condition significantly (p < .05) decreased maximal oxygen uptake (VO2max), red blood cell count, and hematocrit for both TA and DA groups. Meanwhile, the participants' mean corpuscular hemoglobin, mean red blood cell volume, white blood cells, and platelets in these two groups increased significantly (p < .05) when they were exercised in the polluted air ambiance. Maximal heart rate and heart rate recovery showed significant (p = .04) increases only in the DA group. However, hemoglobin concentration remained unchanged in both groups. CONCLUSION Acute exposure to high concentrations of pollutants during exercise resulted in decline in cardiovascular functions and hematological parameters in healthy athletes.
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47
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Environmental effects on immune responses in patients with atopy and asthma. J Allergy Clin Immunol 2014; 134:1001-8. [PMID: 25439226 DOI: 10.1016/j.jaci.2014.07.064] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/25/2014] [Accepted: 07/30/2014] [Indexed: 12/13/2022]
Abstract
Despite attempts and some successes to improve air quality over the decades, current US national trends suggest that exposure to outdoor and indoor air pollution remains a significant risk factor for both the development of asthma and the triggering of asthma symptoms. Emerging science also suggests that environmental exposures during the prenatal period and early childhood years increase the risk of asthma. Multiple mechanisms mediate this risk because a wide range of deleterious air pollutants contribute to the pathogenesis of asthma across a variety of complex asthma phenotypes. In this review we will consider the role of altered innate and adaptive immune responses, gene-environment interactions, epigenetic regulation, and possibly gene-environment-epigene interactions. Gaining a greater understanding of the mechanisms that underlie the effect of exposure to air pollution on asthma, allergies, and other airway diseases can identify targets for therapy. Such interventions will include pollutant source reduction among those most exposed and most vulnerable and novel pharmaceutical strategies to reduce asthma morbidity.
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Farkhondeh T, Samarghandian S, Sadighara P. Lead exposure and asthma: an overview of observational and experimental studies. TOXIN REV 2014. [DOI: 10.3109/15569543.2014.958756] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Tse SM, Wu AC. Reply: the beneficial effect of statins on asthma exacerbations: another point of view. Am J Respir Crit Care Med 2014; 190:119. [PMID: 24983227 DOI: 10.1164/rccm.201404-0657le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Sze Man Tse
- 1 Sainte-Justine University Hospital Center Montréal, Quebec, Canada
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Rosser FJ, Forno E, Cooper PJ, Celedón JC. Asthma in Hispanics. An 8-year update. Am J Respir Crit Care Med 2014; 189:1316-27. [PMID: 24881937 PMCID: PMC4098086 DOI: 10.1164/rccm.201401-0186pp] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 04/05/2014] [Indexed: 01/25/2023] Open
Abstract
This review provides an update on asthma in Hispanics, a diverse group tracing their ancestry to countries previously under Spanish rule. A marked variability in the prevalence and morbidity from asthma remains among Hispanic subgroups in the United States and Hispanic America. In the United States, Puerto Ricans and Mexican Americans have high and low burdens of asthma, respectively (the "Hispanic Paradox"). This wide divergence in asthma morbidity among Hispanic subgroups is multifactorial, likely reflecting the effects of known (secondhand tobacco smoke, air pollution, psychosocial stress, obesity, inadequate treatment) and potential (genetic variants, urbanization, vitamin D insufficiency, and eradication of parasitic infections) risk factors. Barriers to adequate asthma management in Hispanics include economic and educational disadvantages, lack of health insurance, and no access to or poor adherence with controller medications such as inhaled corticosteroids. Although considerable progress has been made in our understanding of asthma in Hispanic subgroups, many questions remain. Studies of asthma in Hispanic America should focus on environmental or lifestyle factors that are more relevant to asthma in this region (e.g., urbanization, air pollution, parasitism, and stress). In the United States, research studies should focus on risk factors that are known to or may diverge among Hispanic subgroups, including but not limited to epigenetic variation, prematurity, vitamin D level, diet, and stress. Clinical trials of culturally appropriate interventions that address multiple aspects of asthma management in Hispanic subgroups should be prioritized for funding. Ensuring high-quality healthcare for all remains a pillar of eliminating asthma disparities.
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Affiliation(s)
- Franziska J. Rosser
- Division of Pediatric Pulmonary Medicine, Allergy and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Erick Forno
- Division of Pediatric Pulmonary Medicine, Allergy and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Philip J. Cooper
- Laboratorio de Investigaciones FEPIS, Quinindé, Esmeraldas Province, Ecuador; and
- Institute of Infection and Immunity, St. George’s University of London, London, United Kingdom
| | - Juan C. Celedón
- Division of Pediatric Pulmonary Medicine, Allergy and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pennsylvania
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