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asthma and pollution

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https://www.readbyqxmd.com/read/28915873/a-prospective-cohort-study-on-ambient-air-pollution-and-respiratory-morbidities-including-childhood-asthma-in-adolescents-from-the-western-cape-province-study-protocol
#1
Toyib Olaniyan, Mohamed Jeebhay, Martin Röösli, Rajen Naidoo, Roslynn Baatjies, Nino Künzil, Ming Tsai, Mark Davey, Kees de Hoogh, Dilys Berman, Bhawoodien Parker, Joy Leaner, Mohamed Aqiel Dalvie
BACKGROUND: There is evidence from existing literature that ambient air pollutant exposure in early childhood likely plays an important role in asthma exacerbation and other respiratory symptoms, with greater effect among asthmatic children. However, there is inconclusive evidence on the role of ambient air pollutant exposures in relation to increasing asthma prevalence as well as asthma induction in children. At the population level, little is known about the potential synergistic effects between pollen allergens and air pollutants since this type of association poses challenges in uncontrolled real life settings...
September 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28910134/eosinophilic-and-non-eosinophilic-asthma
#2
Tara F Carr, Amir A Zeki, Monica Kraft
Asthma can be subdivided into eosinophilic or non-eosinophilic phenotypes based on the inflammatory cellular patterns seen in sputum, blood, and airway tissue compartments. However, this level of stratification does not always produce robust clinical phenotypes as there is considerable overlap across these phenotypes when viewed from the perspective of "eosinophilia". Multiple proposed subphenotypes of asthma have instead been described within both the eosinophilic and non-eosinophilic groups. An endotype is the mechanism driving a subphenotype including those associated with eosinophilia such as early-onset allergic asthma, with and without obesity, aspirin sensitive asthma and late-onset eosinophilic asthma, allergic bronchopulmonary mycosis, and exercise-induced asthma...
September 14, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28888196/the-impact-of-prenatal-exposure-to-air-pollution-on-childhood-wheezing-and-asthma-a-systematic-review
#3
REVIEW
Zhang Hehua, Chang Qing, Gao Shanyan, Wu Qijun, Zhao Yuhong
BACKGROUND AND OBJECTIVES: There has been no clear consensus about whether prenatal exposure to air pollution contributes to the development of wheezing and asthma in children. We conducted a systematic review to analyze the association between exposure to different pollutants during pregnancy and the development of childhood wheezing and asthma. METHODS: We systematically reviewed epidemiological studies published through June 6, 2017 available in the MEDLINE and Web of Science databases...
September 6, 2017: Environmental Research
https://www.readbyqxmd.com/read/28888127/environmental-injustice-and-sexual-minority-health-disparities-a%C3%A2-national-study-of-inequitable-health-risks-from-air-pollution-among-same-sex-partners
#4
Timothy W Collins, Sara E Grineski, Danielle X Morales
Air pollution is deleterious to human health, and numerous studies have documented racial and socioeconomic inequities in air pollution exposures. Despite the marginalized status of lesbian, gay, bisexual, and transgender (LGBT) populations, no national studies have examined if they experience inequitable exposures to air pollution. This cross-sectional study investigated inequities in the exposure of same-sex partner households to hazardous air pollutants (HAPs) in the US. We examined cancer and respiratory risks from HAPs across 71,207 census tracts using National Air Toxics Assessment and US Census data...
September 6, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28886960/-indoor-air-quality-and-parents-of-asthmatic-children-practices
#5
S Larramendy Magnin, B Desssome, L Moret
BACKGROUND: Indoor air pollution can worsen asthma in children. Better knowledge of factors determining parents' reception of recommendations to limit pollution of indoor air in the homes of asthmatic children would be helpful to improve implementation. METHOD: A descriptive study evaluating practices known to have an impact on the quality of air in homes was conducted among parents of asthmatic children aged 3 to 16 years. From May to September 2013, parents answered anonymous self-administered questionnaires in waiting rooms of generalist practitioners, in the Nantes University pneumology pediatric outpatient clinic, and as part of therapeutic education sessions conducted by the Asthma-44 Network...
September 5, 2017: Revue D'épidémiologie et de Santé Publique
https://www.readbyqxmd.com/read/28858713/assessment-of-indoor-air-quality-exposures-and-impacts-on-respiratory-outcomes-in-river-rouge-and-dearborn-michigan
#6
Erika Cleary, Mary Asher, Richard Olawoyin, Kuangyuan Zhang
Ambient air pollution is a public health issue which could potentially exacerbate pre-existing respiratory conditions and contribute to increases in asthma incidence. This study aims to address gaps in understanding how IAQ is impacted by outdoor air quality, which was done by sampling for indoor gaseous and particulate pollutants in residence and facilities near the sources of pollution. The study areas were selected due to non-attainment status with air quality standards, as well as demographic and socioeconomic status of those residing in these areas...
August 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28822787/global-regional-and-national-deaths-prevalence-disability-adjusted-life-years-and-years-lived-with-disability-for-chronic-obstructive-pulmonary-disease-and-asthma-1990-2015-a-systematic-analysis-for-the-global-burden-of-disease-study-2015
#7
(no author information available yet)
BACKGROUND: Chronic obstructive pulmonary disease (COPD) and asthma are common diseases with a heterogeneous distribution worldwide. Here, we present methods and disease and risk estimates for COPD and asthma from the Global Burden of Diseases, Injuries, and Risk Factors (GBD) 2015 study. The GBD study provides annual updates on estimates of deaths, prevalence, and disability-adjusted life years (DALYs), a summary measure of fatal and non-fatal disease outcomes, for over 300 diseases and injuries, for 188 countries from 1990 to the most recent year...
September 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28821285/genetic-and-epigenetic-susceptibility-of-airway-inflammation-to-pm2-5-in-school-children-new-insights-from-quantile-regression
#8
Yue Zhang, Muhammad T Salam, Kiros Berhane, Sandrah P Eckel, Edward B Rappaport, William S Linn, Rima Habre, Theresa M Bastain, Frank D Gilliland
BACKGROUND: The fractional concentration of exhaled nitric oxide (FeNO) is a biomarker of airway inflammation that has proved to be useful in investigations of genetic and epigenetic airway susceptibility to ambient air pollutants. For example, susceptibility to airway inflammation from exposure to particulate matter with aerodynamic diameter < =2.5 μm (PM2.5) varies by haplotypes and promoter region methylation in inducible nitric oxide synthase (iNOS encoded by NOS2). We hypothesized that PM2...
August 18, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28807506/altered-vulnerability-to-asthma-at-various-levels-of-ambient-benzo-a-pyrene-by-ctla4-stat4-and-cyp2e1-polymorphisms
#9
Hyunok Choi, Nana Tabashidze, Pavel Rossner, Miroslav Dostal, Anna Pastorkova, Sek Won Kong, Hans Gmuender, Radim J Sram
BACKGROUND: Within fossil- and solid-fuel dependent geographic locations, mechanisms of air pollution-induced asthma remains unknown. In particular, sources of greater genetic susceptibility to airborne carcinogen, namely, benzo[a]pyrene (B[a]P) has never been investigated beyond that of a few well known genes. OBJECTIVES: To deepen our understanding on how the genotypic variations within the candidate genes contribute to the variability in the children's susceptibility to ambient B[a]P on doctor-diagnosed asthma...
August 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28801196/prenatal-fine-particulate-exposure-and-early-childhood-asthma-effect-of-maternal-stress-and-fetal-sex
#10
Alison Lee, Hsiao-Hsien Leon Hsu, Yueh-Hsiu Mathilda Chiu, Sonali Bose, Maria José Rosa, Itai Kloog, Ander Wilson, Joel Schwartz, Sheldon Cohen, Brent A Coull, Robert O Wright, Rosalind J Wright
BACKGROUND: The impact of prenatal ambient air pollution on child asthma may be modified by maternal stress, child sex, and exposure dose and timing. OBJECTIVE: We prospectively examined associations between coexposure to prenatal particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5) and maternal stress and childhood asthma (n = 736). METHODS: Daily PM2.5 exposure during pregnancy was estimated using a validated satellite-based spatiotemporally resolved prediction model...
August 8, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28798526/environmental-pollution-and-allergies
#11
REVIEW
Hirohisa Takano, Ken-Ichiro Inoue
Environmental changes are thought to be the main factor in the rapid increase and worsening of allergic diseases. While there have been significant changes in many environmental factors, including in environments such as residential, health and sanitation, food, and water/soil/atmospheric environments, the root of each of these changes is likely an increase in chemical substances. In fact, various environmental pollutants, such as air pollutants and chemical substances, have been shown to worsen various allergies in experimental studies...
July 2017: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/28765821/increased-antioxidant-activity-after-exposure-of-ozone-in-murine-asthma-model
#12
Yang Ki Kim, So My Koo, Kiup Kim, Soo-Taek Uh, Ahnsoo Jang, Choon-Sik Park
BACKGROUND: Ozone is well known as an important component of ambient air pollutants. Ozone can aggravate respiratory symptoms in patients with bronchial asthma, but, not in healthy person. We hypothesized asthma itself may show different response to ozone compared to nonasthma. OBJECTIVE: This study was performed to evaluate the differences of response to ozone between normal and asthmatic mice model in terms of status of oxidant injury and antioxidant activity...
July 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/28763386/estimating-the-public-health-impact-of-air-pollution-for-informing-policy-in-the-twin-cities-a-minnesota-tracking-collaboration
#13
Jean E Johnson, David L Bael, Jeannette M Sample, Paula G Lindgren, Dorian L Kvale
OBJECTIVE: The Minnesota Department of Health and the Minnesota Pollution Control Agency used local air pollution and public health data to estimate the impacts of particulate matter and ozone on population health, to identify disparities, and to inform decisions that will improve health. SETTING: While air quality in Minnesota currently meets federal standards, urban communities are concerned about the impact of air pollution on their health. The Twin Cities (Minneapolis-St Paul) metropolitan area includes 7 counties where fine particulate levels and rates of asthma exacerbations are elevated in some communities...
September 2017: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/28757229/prenatal-particulate-matter-exposure-and-wheeze-in-mexican-children-effect-modification-by-prenatal-psychosocial-stress
#14
Maria José Rosa, Allan C Just, Itai Kloog, Ivan Pantic, Lourdes Schnaas, Alison Lee, Sonali Bose, Yueh-Hsiu Mathilda Chiu, Hsiao-Hsien Leon Hsu, Brent Coull, Joel Schwartz, Sheldon Cohen, Martha María Téllez Rojo, Robert O Wright, Rosalind J Wright
BACKGROUND: Air pollution exposure in childhood is associated with greater incidence and exacerbation of asthma, particularly in children whose parents report high levels of psychological stress. However, this interaction has not been completely elucidated in pregnancy. OBJECTIVE: To examine whether the association between prenatal exposure to particulate matter no larger than 2.5 μm in diameter (PM2.5) and wheeze in children is modified by prenatal stress. METHODS: Mexican women were recruited during pregnancy (N = 552)...
September 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28757196/air-pollution-and-its-relationship-to-lung-function-among-adolescents-from-taubate-s%C3%A3-o-paulo-brazil
#15
M Froio Toledo, B Mangueira Saraiva-Romanholo, R Carvalho Oliveira, L Ferraz da Silva, D Solé
BACKGROUND: This paper sought to evaluate individual exposure to air pollution by quantifying the carbon in alveolar macrophages (AMs) and its relationship to lung function. We also examined the proximity of participants' residences to the Presidente Dutra highway (PDH) in adolescents with asthma from Taubaté, São Paulo, Brazil. METHODS: This descriptive study examined fifty 13- to 14-year-old adolescents with asthma identified by the International Study of Asthma and Allergies in Childhood (ISAAC) in Taubaté...
July 27, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28740386/quantum-dots-based-lateral-flow-immunoassay-combined-with-image-analysis-for-semiquantitative-detection-of-ige-antibody-to-mite
#16
Yan Zhao, Qiang Zhang, Qingfeng Meng, Fenglian Wu, Lihua Zhang, Yao Tang, Yuanyuan Guan, Lixin An
Semiquantitative and rapid detection of specific IgE (sIgE) with well clinical relevance to house dust mite (HDM) are promising for prevalence rhinitis and asthma patients due to the increasing air pollution. However, the conventional IgE measurement systems are time-consuming, complicated and require special instruments. Herein, we overcome the above limitations of sIgE to HDM detection system by developing a quantum dot nanobeads-based lateral flow immunoassay and an image analysis procedure. The proposed detection system could semiquantitatively measure the IgE in a linear range of 0...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28737932/ins-and-outs-in-environmental-and-occupational-safety-studies-of-asthma-and-engineered-nanomaterials
#17
Marina A Dobrovolskaia, Michael R Shurin, Valerian E Kagan, Anna A Shvedova
According to the Centers for Disease Control and Prevention, approximately 25 million Americans suffer from asthma. The disease total annual cost is about $56 billion and includes both the direct and indirect costs of medications, hospital stays, missed work, and decreased productivity. Air pollution with xenobiotics, bacterial agents, and industrial nanomaterials, such as carbon nanotubes, contribute to the exacerbation of this condition and are a point of particular attention in environmental toxicology as well as in occupational health and safety research...
August 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28732014/association-of-time-serial-changes-in-ambient-particulate-matters-pms-with-respiratory-emergency-cases-in-taipei-s-wenshan-district
#18
Jer-Hwa Chang, Shih-Chang Hsu, Kuan-Jen Bai, Shau-Ku Huang, Chin-Wang Hsu
Ambient air pollution poses a significant risk for a group of common and often debilitating respiratory diseases, but its direct impact on cause-specific respiratory diseases using emergency room visit (ERV) as an indicator remains to be fully explored. In this study, we conducted a time-series study of ambient PM2.5, NO2, SO2 and their association with ERV for asthma, COPD and pneumonia in a four-year time span. Relative risks for ERV as per log increase in the level of ambient pollutants with time lags of up to 10 days were calculated, using a generalized additive model of Poisson regression...
2017: PloS One
https://www.readbyqxmd.com/read/28719626/impact-of-respiratory-infections-outdoor-pollen-and-socioeconomic-status-on-associations-between-air-pollutants-and-pediatric-asthma-hospital-admissions
#19
Julie E Goodman, Christine T Loftus, Xiaobin Liu, Ke Zu
BACKGROUND: Epidemiology studies have shown that ambient concentrations of ozone and fine particulate matter (PM2.5) are associated with increased emergency department (ED) visits and hospital admissions (HAs) for asthma. OBJECTIVE: Evaluate the impact of outdoor pollen, respiratory infections, and socioeconomic status (SES) on the associations between ambient ozone and PM2.5 and asthma HAs in New York City. METHODS: Daily ozone, PM2.5, meteorological factors, pollen, and hospitalization records during 1999 to 2009 were obtained for New York City residents...
2017: PloS One
https://www.readbyqxmd.com/read/28713081/gene-polymorphism-of-xenobiotic-detoxification-in-children-with-bronchial-asthma
#20
Liudmila Y Lytvynets
INTRODUCTION: Children are the most susceptible to harmful external factors due to the incomplete development of all functional body systems. The ecological situation the problem of influence of genetic and environmental factors on the pathogenesis of chronic respiratory diseases in children and its investigation is very impotent today. Among it the bronchial asthma is a leader among bronchial and pulmonary diseases caused by the influence of pneumotropic pollutants. The aim of our research was to study the phenotypic characteristics of asthma in Pre-Carpathian children with different types of allelic gene polymorphism of the first phase of xenobiotic detoxification of microsomal epoxide hydrolases (mEPHX1)...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
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