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Olsson D, Forsberg B, Bråbäck L, Geels C, Brandt J, Christensen JH, Frohn LM, Oudin A. Early childhood exposure to ambient air pollution is associated with increased risk of paediatric asthma: An administrative cohort study from Stockholm, Sweden. ENVIRONMENT INTERNATIONAL 2021; 155:106667. [PMID: 34077855 DOI: 10.1016/j.envint.2021.106667] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/06/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Asthma is a complex, heterogeneous disease and one of the most common chronic diseases among children. Exposure to ambient air pollution in early life and childhood may influence asthma aetiology, but it is uncertain which specific components of air pollution and exposure windows are of importance. The role of socio-economic status (SES) is also unclear. The aims of the present study are, therefore, to investigate how various exposure windows of different pollutants affect risk-induced asthma in early life and to explore the possible effect SES has on that relationship. METHODS The study population was constructed using register data on all singleton births in the greater Stockholm area between 2006 and 2013. Exposure to ambient black carbon (BC), fine particulate matter (PM2.5), primary organic carbon (pOC) secondary organic aerosols (SOA), secondary inorganic aerosols, and oxidative potential at the residential address was modelled as mean values for the entire pregnancy period, the first year of life and the first three years of life. Swedish national registers were used to define the outcome: asthma diagnosis assessed at hospital during the first six years of life. Hazard ratios (HRs) and their 95% confidence intervals (CIs) were modelled with Cox proportional hazards model with age as the underlying time-scale, adjusting for relevant potential confounding variables. RESULTS An increased risk for developing childhood asthma was observed in association with exposure to PM2.5, pOC and SOA during the first three years of life. With an interquartile range increase in exposure, the HRs were 1.06 (95% CI: 1.01-1.10), 1.05 (95% CI: 1.02-1.09) and 1.02 (95% CI: 1.00-1.04), for PM2.5, pOC and SOA, respectively, in the fully adjusted models. Exposure during foetal life or the first year of life was not associated with asthma risk, and the other pollutants were not statistically significantly associated with increased risk. Furthermore, the increase in risk associated with PM2.5 and the components BC, pOC and SOA were stronger in areas with lower SES. CONCLUSION Our results suggest that exposure to air pollution during the first three years of life may increase the risk for asthma in early childhood. The findings further imply a possible increased vulnerability to air pollution-attributed asthma among low SES children.
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Affiliation(s)
- David Olsson
- Department of Public Health and Clinical Medicine, Sustainable Health, Umeå University, Sweden
| | - Bertil Forsberg
- Department of Public Health and Clinical Medicine, Sustainable Health, Umeå University, Sweden
| | - Lennart Bråbäck
- Department of Public Health and Clinical Medicine, Sustainable Health, Umeå University, Sweden
| | - Camilla Geels
- Department of Environmental Science - Atmospheric Modelling, Aarhus University, Denmark
| | - Jørgen Brandt
- Department of Environmental Science - Atmospheric Modelling, Aarhus University, Denmark
| | - Jesper H Christensen
- Department of Environmental Science - Atmospheric Modelling, Aarhus University, Denmark
| | - Lise M Frohn
- Department of Environmental Science - Atmospheric Modelling, Aarhus University, Denmark
| | - Anna Oudin
- Department of Public Health and Clinical Medicine, Sustainable Health, Umeå University, Sweden.
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Fazel N, Kundi M, Kazemzadeh A, Esmaily H, Akbarzadeh R, Ahmadi R. Environmental tobacco smoke exposure during pregnancy affects complications and birth outcomes in women with and without asthma. BMC Pregnancy Childbirth 2020; 20:314. [PMID: 32434494 PMCID: PMC7240917 DOI: 10.1186/s12884-020-03000-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/08/2020] [Indexed: 01/21/2023] Open
Abstract
Background It is known that environmental tobacco smoke (ETS) has adverse effects on pregnancy and birth outcomes. We aimed to assess the impact of ETS in pregnant women with and without asthma. Methods A cohort study was conducted from August 2014 to June 2015 enrolling 1603 pregnant women during their 2nd trimester. Data on tobacco exposure were collected at first visit and women were followed through pregnancy till postpartum. Results Of the 1603 women, 231 reported passive smoking, 223 non-asthmatics and 8 asthmatics. Women exposed to ETS during pregnancy were more likely to have an infant admitted to the pediatric ward (10.8% vs. 6.5%, p = 0.026) and to have low one- and five-minute Apgar scores (1 min: 6.1% vs. 2.6%, p = 0.011; 5 min: 2.2% vs. 0.7%, p = 0.039). Complications of pregnancy were also elevated in women exposed to ETS (53.7% vs. 42.3%, p = 0.002). Asthma had no additional effect beyond the impact of ETS except for cesarean sections that were more frequent in women with asthma exposed to ETS. Conclusions Due to the small number of women with asthma exposed to ETS, combined effects of asthma and ETS were only found for cesarean sections. Still counseling of pregnant women about adverse effects of ETS should consider women’s asthma as an additional reason to avoid ETS.
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Affiliation(s)
- Nasrin Fazel
- Sabzevar University of Medical Sciences, Sabzevar, Iran.,Center for Public Health, Medical University Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria
| | - Michael Kundi
- Center for Public Health, Medical University Vienna, Kinderspitalgasse 15, 1090, Vienna, Austria.
| | - Asghar Kazemzadeh
- Department of Internal Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Habibollah Esmaily
- Department of Biostatistics & Epidemiology, Neonatal Research Center, Mashhad University of Medical Sciences, Mashad, Iran
| | - Roya Akbarzadeh
- Department of Anesthesia & Operating Room, College of Paramedics, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Raheleh Ahmadi
- Department of Obstetrics and Gynecology, Mobini Hospital, Sabzevar University of Medical Sciences, Sabzevar, Iran
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Morata-Alba J, Romero-Rubio MT, Castillo-Corullón S, Escribano-Montaner A. Respiratory morbidity, atopy and asthma at school age in preterm infants aged 32-35 weeks. Eur J Pediatr 2019; 178:973-982. [PMID: 31001655 DOI: 10.1007/s00431-019-03372-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/20/2019] [Accepted: 03/24/2019] [Indexed: 12/27/2022]
Abstract
Little is known about respiratory morbidity and asthma risk in preterm infants (PTIs) with a gestational age (GA) over 32 weeks. This was a prospective study carried out from birth to 7-8 years, comparing two groups: (a) PTIs (GAs 32 weeks + 1 day to 35 weeks + 0 days, without comorbidities) and (b) full-term infants (FTIs; GA ≥ 37 weeks). Risk and protective factors for bronchiolitis and asthma were identified. A total of 232 children (116/group) were included. Sixty-six (56.9%) PTIs and 43 (37.1%) FTIs presented bronchiolitis (p = 0.002). Recurrent wheezing was 52 (44.8%) on PTIs versus 36 (31.0%) on FTIs (p = 0.03). Asthma at school aged was 27 (23.3%) on PTIs and 8 (6.9%) on FTIs (p = 0.020). Asthma risk factors were only detected in group A.Conclusion: PTIs had a higher prevalence of bronchiolitis, recurrent wheezing and asthma; risk factors for asthma are the following: older siblings, allergic father, atopic dermatitis and antibiotic treatment in the first 3 years of life and prematurity itself, which also acted as protective factor for atopic dermatitis. What is known: • In recent decades, there has been a significant increase in the birth of premature babies and consequently, also in the pathologies secondary to the prematurity: a greater number of complications and disorders related to the development and maturation of many organs and systems, especially the respiratory system. Several studies, especially in full-term infants and very preterm infants, have tried to elucidate the risk factors that may influence the development of persistent or chronic respiratory problems such asasthma, but little is known about the aetiology of these disorders in the late or moderate preterm infants. Inthis group of children, the role played by certain factors (early use of antibiotics, chorioamnionitis, smokeexposure, paternal asthma, etc.) on late respiratory morbidity, or asthma, is inconclusive. • Moderate-to-late preterm infants are more predisposed to developing recurrent wheezing/asthma and should adopt control measures. What is new: • Our work provides data related to little-understood aspects of respiratory diseases in this group of late or moderate preterm infants (gestational age between 32 weeks plus 1 day and 35 weeks plus 0 days), by monitoring their evolution from birth to 7-8 years of age, compared with another group of full-term newborns. We aimed to establish the prevalence of bronchiolitis and recurrent wheezing in these children during their first years of life. • The prevalence of school-aged asthma and the risk factors for contracting it were also investigated.
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Affiliation(s)
- Júlia Morata-Alba
- Paediatric Pneumology Unit, University Clinic Hospital, University of Valencia, Av Blasco Ibáñez, 17, 46010, Valencia, Spain. .,, Valencia, Spain.
| | - Maria Teresa Romero-Rubio
- Paediatric Pneumology Unit, University Clinic Hospital, University of Valencia, Av Blasco Ibáñez, 17, 46010, Valencia, Spain
| | - Silvia Castillo-Corullón
- Paediatric Pneumology Unit, University Clinic Hospital, University of Valencia, Av Blasco Ibáñez, 17, 46010, Valencia, Spain
| | - Amparo Escribano-Montaner
- Paediatric Pneumology Unit, University Clinic Hospital, University of Valencia, Av Blasco Ibáñez, 17, 46010, Valencia, Spain
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Yang CL, Zhu HY, Zhang F. Comparative Proteomics Analysis Between the Short-Term Stress and Long-Term Adaptation of the Blattella germanica (Blattodea: Blattellidae) in Response to Beta-Cypermethrin. JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:1396-1402. [PMID: 30835785 DOI: 10.1093/jee/toz047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Indexed: 06/09/2023]
Abstract
A proteomic method combining two-dimensional polyacrylamide gel electrophoresis and tandem mass spectrometry was used to compare the hemolymph expression profiles of a beta-cypermethrin-resistant Blattella germanica L. strain (R) and a susceptible strain (S) after 24 h of beta-cypermethrin induction. The results showed that there were 42 differentially expressed proteins after induction of the R strain: 4 proteins were upregulated and 38 proteins were downregulated. One hundred one hemolymph proteins were differentially expressed after induction of the S strain: 53 proteins were upregulated and 48 proteins were downregulated. The identified proteins were mainly classified into the following categories: energy metabolism proteins such as arginine kinase and triose phosphate isomerase, detoxification-related proteins such as glutathione S-transferases (GSTs), signal molecule-regulated proteins such as nitric oxide synthase (NOS), and other proteins such as kinetic-related proteins and gene expression-related proteins. Several proteins show significant differences in response to short-term stress and long-term adaptation, and differential expression of these proteins reflects an overall change in cellular structure and metabolism associated with resistance to pyrethroid insecticides. In summary, our research has improved the understanding of the molecular mechanisms of beta-cypermethrin resistance in German cockroaches, which will facilitate the development of rational methods to improve the management of this pest.
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Affiliation(s)
- Cheng Long Yang
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan, People of Republic of China
| | - Hai Ying Zhu
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan, People of Republic of China
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Yue H, Yan W, Ji X, Gao R, Ma J, Rao Z, Li G, Sang N. Maternal Exposure of BALB/c Mice to Indoor NO2 and Allergic Asthma Syndrome in Offspring at Adulthood with Evaluation of DNA Methylation Associated Th2 Polarization. ENVIRONMENTAL HEALTH PERSPECTIVES 2017; 125:097011. [PMID: 28935613 PMCID: PMC5903874 DOI: 10.1289/ehp685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 06/07/2017] [Accepted: 06/19/2017] [Indexed: 05/03/2023]
Abstract
BACKGROUND Fetal stress has been proposed to be associated with diseases in both children and adults. Epidemiological studies suggest that maternal exposure to nitrogen dioxide (NO2) contributes to increased morbidity and mortality of offspring with allergic asthma later in life. OBJECTIVES We aimed to test whether maternal NO2 exposure causes allergic asthma-related consequences in offspring absent any subsequent lung provocation and whether this exposure enhances the likelihood of developing allergic asthma or the intensity of developed allergic airway disease following postnatal allergic sensitization and challenge. In addition, if such consequences and enhancements occurred, we sought to determine the mechanism(s) of these responses. METHODS Pregnant BALB/c mice were exposed to either NO2 (2.5 ppm, 5 h/day) or air daily throughout the gestation period. Offspring were sacrificed on postnatal days (PNDs) 1, 7, 14, 21, and 42, and remaining offspring were sensitized by ovalbumin (OVA) injection followed by OVA aerosol challenge during postnatal wk 7-9. We analyzed the lung histopathology, inflammatory cell infiltration, airway hyper-responsiveness (AHR), immune responses, and gene methylation under different treatment conditions. RESULTS Maternal exposure to NO2 caused a striking increase in inflammatory cell infiltration and the release of type 2 cytokines in the lungs of offspring at PNDs 1 and 7; however, these alterations were reversed during postnatal development. Following OVA sensitization and challenge, the exposure enhanced the levels of allergic asthma-characterized OVA-immunoglobulin (Ig) E, AHR, and airway inflammation in adult offspring. Importantly, differentiation of T-helper (Th) 2 cells and demethylation of the interleukin-4 (IL4) gene occurred during the process. CONCLUSIONS Maternal exposure to indoor environmental NO2 causes allergic asthma-related consequences in offspring absent any subsequent lung provocation and potentiates the symptoms of allergic asthma in adult offspring following postnatal allergic sensitization and challenge; this response is associated with the Th2-based immune response and DNA methylation of the IL4 gene. https://doi.org/10.1289/EHP685.
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Affiliation(s)
- Huifeng Yue
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University , Taiyuan, Shanxi, People's Republic of China
| | - Wei Yan
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University , Taiyuan, Shanxi, People's Republic of China
| | - Xiaotong Ji
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University , Taiyuan, Shanxi, People's Republic of China
| | - Rui Gao
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University , Taiyuan, Shanxi, People's Republic of China
| | - Juan Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, People's Republic of China
| | - Ziyu Rao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, People's Republic of China
| | - Guangke Li
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University , Taiyuan, Shanxi, People's Republic of China
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University , Taiyuan, Shanxi, People's Republic of China
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Joss-Moore LA, Lane RH, Albertine KH. Epigenetic contributions to the developmental origins of adult lung disease. Biochem Cell Biol 2015; 93:119-27. [PMID: 25493710 PMCID: PMC5683896 DOI: 10.1139/bcb-2014-0093] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Perinatal insults, including intrauterine growth restriction, preterm birth, maternal exposure to toxins, or dietary deficiencies produce deviations in the epigenome of lung cells. Occurrence of perinatal insults often coincides with the final stages of lung development. The result of epigenome disruptions in response to perinatal insults during lung development may be long-term structural and functional impairment of the lung and development of lung disease. Understanding the contribution of epigenetic mechanisms to life-long lung disease following perinatal insults is the focus of the developmental origins of adult lung disease field. DNA methylation, histone modifications, and microRNA changes are all observed in various forms of lung disease. However, the perinatal contribution to such epigenetic mechanisms is poorly understood. Here we discuss the developmental origins of adult lung disease, the interplay between perinatal events, lung development and disease, and the role that epigenetic mechanisms play in connecting these events.
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Affiliation(s)
- Lisa A Joss-Moore
- Division of Neonatology, Department of Pediatrics, University of Utah, P.O. Box 581289, Salt Lake City, UT 84158, USA
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