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https://www.readbyqxmd.com/read/28649460/pulmonary-diseases-induced-by-ambient-ultrafine-and-engineered-nanoparticles-in-twenty-first-century
#1
Tian Xia, Yifang Zhu, Lina Mu, Zuo-Feng Zhang, Sijin Liu
Air pollution is a severe threat to public health globally, affecting everyone in developed and developing countries alike. Among different air pollutants, particulate matter (PM), particularly combustion-produced fine PM (PM2.5) has been shown to play a major role in inducing various adverse health effects. Strong associations have been demonstrated by epidemiological and toxicological studies between increases in PM2.5 concentrations and premature mortality, cardiopulmonary diseases, asthma and allergic sensitization, and lung cancer...
December 2016: National Science Review
https://www.readbyqxmd.com/read/28644724/modeling-long-term-effects-attributed-to-nitrogen-dioxide-no2-and-sulfur-dioxide-so2-exposure-on-asthma-morbidity-in-a-nationwide-cohort-in-israel
#2
N Greenberg, R S Carel, E Derazne, A Tiktinsky, D Tzur, B A Portnov
Studies have provided extensive documentation that acutely elevated environmental exposures contribute to chronic health problems. However, only attention has been paid to the effects of modificate of exposure assessment methods in environmental health investigations, leading to uncertainty and gaps in our understanding of exposure- and dose-response relationships. The goal of the present study was to evaluate whether average or peak concentration exerts a greater influence on asthma outcome, and which of the exposure models may better explain various physiological responses generated by nitrogen dioxide (NO2) or sulfur dioxide (SO2) air pollutants...
June 23, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28631126/a-comparative-study-of-hospital-admissions-for-respiratory-diseases-during-normal-and-dusty-days-in-iran
#3
Sahar Geravandi, Pierre Sicard, Yusef Omidi Khaniabadi, Alessandra De Marco, Ali Ghomeishi, Gholamreza Goudarzi, Mohammad Mahboubi, Ahmad Reza Yari, Sina Dobaradaran, Ghasem Hassani, Mohammad Javad Mohammadi, Shahram Sadeghi
During the last century, most of people around the world moved from communicable to non-communicable diseases, mainly due to air pollution. Air pollutants and dust storm increase risk of morbidity, for cardiovascular and respiratory diseases, and increase the number of deaths. The city of Ahvaz is considered as the focal point of air pollution and dust storm in Iran. The aim of this study was to determine the number of Hospital Admission Respiratory Disease (HARD) including asthma attacks, acute bronchitis and chronic obstructive pulmonary disease attributed to PM10 by a descriptive study during normal and dust event days in Ahvaz during the time period 2010-2012...
June 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28629362/long-term-exposure-to-ambient-ultrafine-particles-and-respiratory-disease-incidence-in-in-toronto-canada-a-cohort-study
#4
Scott Weichenthal, Li Bai, Marianne Hatzopoulou, Keith Van Ryswyk, Jeffrey C Kwong, Michael Jerrett, Aaron van Donkelaar, Randall V Martin, Richard T Burnett, Hong Lu, Hong Chen
BACKGROUND: Little is known about the long-term health effects of ambient ultrafine particles (<0.1 μm) (UFPs) including their association with respiratory disease incidence. In this study, we examined the relationship between long-term exposure to ambient UFPs and the incidence of lung cancer, adult-onset asthma, and chronic obstructive pulmonary disease (COPD). METHODS: Our study cohort included approximately 1.1 million adults who resided in Toronto, Canada and who were followed for disease incidence between 1996 and 2012...
June 19, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28605396/traffic-related-pollutants-exposure-and-health-effects-in-hispanic-children
#5
Garrett M Weaver, W James Gauderman
We examined traffic-related pollution (TRP) exposure and respiratory health effects in Hispanic white (HW) children, both compared to non-Hispanic white (NHW) children and by genetically-determined Native American (NA) ancestry. The sample included over 5,000 children from the Children's Health Study, followed from 1993 to 2014. HW children were 1.47 (95% CI: 1.24, 1.73) times more likely to live close ( < 500m) to a freeway and 1.54 (95% CI: 1.26, 1.87) times more likely to live close ( < 75m) to a major non-freeway road compared to NHW children...
June 9, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28601047/role-of-epigenetics-in-the-pathogenesis-of-asthma
#6
Zahra Alizadeh, Esmaeil Mortaz, Ian Adcock, Mostafa Moin
Asthma is a complex, heterogeneous and chronic airway inflammatory disease with different clinical phenotypes caused by diverse triggers and pathophysiological mechanisms. Asthma heritability has been established in many genetic studies but it is evident that only genetic elements are not responsible for the development of asthma. Increasing rate of asthma incidence during past decades has implicated the role of epigenetics in development of asthma. Environmental factors perform as initiator signals through epigenetic mechanisms...
April 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28600748/teacher-respiratory-health-symptoms-in-relation-to-school-and-home-environment
#7
Shao Lin, Wayne R Lawrence, Ziqiang Lin, Melissa Francois, Iulia A Neamtiu, Qiaoxuan Lin, Eva Csobod, Eugen S Gurzau
PURPOSE: Few studies have evaluated teachers' respiratory health, especially its relationship with school/home environment, and school policies. This study assessed asthma and smoking prevalence among teachers in Romania, teacher's perception and knowledge of the school environment, policies and asthma management, and how school and home environment affected asthma, allergy, and respiratory infection symptoms. METHODS: This cross-sectional study obtained information from 104 Romanian teachers utilizing teacher questionnaire data for Romania only, as part of the Schools Indoor Pollution and Health: Observatory Network in Europe (SINPHONIE) study, a multicenter European research project conducted between 2010 and 2012...
June 9, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28592396/prevalence-of-and-risk-factors-for-childhood-asthma-rhinitis-and-eczema-in-hong-kong-proposal-for-a-cross-sectional-survey
#8
So Lun Lee, Yu Lung Lau, Hing Sang Wong, Linwei Tian
BACKGROUND: Previous studies have shown that particulate matter is a major problem in indoor air quality in Hong Kong schools, but little has been done to assess its relationship with health indicators in the children attending those schools. Our study aims to address this research gap by collecting aerosol data in schools to examine the link between different air pollutants with childhood respiratory health. It is important to explore whether or not the prevalence of asthma, allergic rhinoconjunctivitis, and eczema are increasing in local children...
June 7, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28588744/effect-of-personal-exposure-to-black-carbon-on-changes-in-allergic-asthma-gene-methylation-measured-5%C3%A2-days-later-in-urban-children-importance-of-allergic-sensitization
#9
Kyung Hwa Jung, Stephanie Lovinsky-Desir, Beizhan Yan, David Torrone, Jennifer Lawrence, Jacqueline R Jezioro, Matthew Perzanowski, Frederica P Perera, Steven N Chillrud, Rachel L Miller
BACKGROUND: Asthma gene DNA methylation may underlie the effects of air pollution on airway inflammation. However, the temporality and individual susceptibility to environmental epigenetic regulation of asthma has not been fully elucidated. Our objective was to determine the timeline of black carbon (BC) exposure, measured by personal sampling, on DNA methylation of allergic asthma genes 5 days later to capture usual weather variations and differences related to changes in behavior and activities...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28573192/modeling-the-effect-of-the-aryl-hydrocarbon-receptor-on-transplant-immunity
#10
Walker Julliard, John H Fechner, Leah Owens, Chelsea A O'Driscoll, Ling Zhou, Jeremy A Sullivan, Lynn Frydrych, Amanda Mueller, Joshua D Mezrich
BACKGROUND: Exposure to pollutants through inhalation is a risk factor for lung diseases including cancer, asthma, and lung transplant rejection, but knowledge of the effects of inhaled pollutants on pathologies outside of the lung is limited. METHODS: Using the minor-mismatched model of male C57BL/6J (B6) to female B6 skin grafts, recipient mice were treated with an inhaled urban dust particle sample every 3 days before and after grafting. Graft survival time was determined, and analysis of the resulting immune response was performed at time before rejection...
May 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28558263/the-role-of-traffic-noise-on-the-association-between-air-pollution-and-children-s-lung-function
#11
Meredith Franklin, Scott Fruin
Although it has been shown that traffic-related air pollution adversely affects children's lung function, few studies have examined the influence of traffic noise on this association, despite both sharing a common source. Estimates of noise exposure (Ldn, dB), and freeway and non-freeway emission concentrations of oxides of nitrogen (NOx, ppb) were spatially assigned to children in Southern California who were tested for forced vital capacity (FVC, n=1345), forced expiratory volume in 1s, (FEV1, n=1332), and asthma...
August 2017: Environmental Research
https://www.readbyqxmd.com/read/28551888/effects-of-long-term-exposure-to-traffic-related-air-pollution-on-lung-function-in-children
#12
REVIEW
Erica S Schultz, Augusto A Litonjua, Erik Melén
Lung function in early life has been shown to be an important predictor for peak lung function in adults and later decline. Reduced lung function per se is associated with increased morbidity and mortality. With this review, we aim to summarize the current epidemiological evidence on the effect of traffic-related air pollution on lung function in children and adolescents. We focus in particular on time windows of exposure, small airway involvement, and vulnerable sub-groups in the population. Findings from studies published to date support the notion that exposure over the entire childhood age range seems to be of importance for lung function development...
June 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28551557/on-the-road-to-recovery-gasoline-content-regulations-and-child-health
#13
Michelle Marcus
Gasoline content regulations are designed to curb pollution and improve health, but their impact on health has not been quantified. By exploiting both the timing of regulation and spatial variation in children's exposure to highways, I estimate the effect of gasoline content regulation on pollution and child health. The introduction of cleaner-burning gasoline in California in 1996 reduced asthma admissions by 8% in high exposure areas. Reductions are greatest for areas downwind from highways and heavy traffic areas...
May 3, 2017: Journal of Health Economics
https://www.readbyqxmd.com/read/28547375/the-effects-of-ozone-on-human-health
#14
Daniela Nuvolone, Davide Petri, Fabio Voller
Ozone is a highly reactive, oxidative gas associated with adverse health outcome, including mortality and morbidity. Data from monitoring sites worldwide show levels of ozone often exceeding EU legislation threshold and the more restrictive WHO guidelines for the protection of human health. Well-established evidence has been produced for short-term effects, especially on respiratory and cardiovascular systems, associated to ozone exposure. Less conclusive is the evidence for long-term effects, reporting suggestive associations with respiratory mortality, new-onset asthma in children and increased respiratory symptom effects in asthmatics...
May 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28545417/community-level-characteristics-and-environmental-factors-of-child-respiratory-illnesses-in-southern-arizona
#15
Nathan Lothrop, Khaleel Hussaini, Dean Billheimer, Paloma Beamer
BACKGROUND: Lower respiratory illnesses (LRIs) and asthma are common diseases in children <5 years of age. Few studies have investigated the relationships between multiple, home-based social and environmental risk factors and asthma and LRIs in children. Of those that have, none have focused exclusively on children <5 years of age, who are more physiologically vulnerable and spend more time at home compared to older children. Further, no studies have done so at the community level...
May 25, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28539170/early-menarche-and-new-onset-of-asthma-results-from-the-sapaldia-cohort-study
#16
Sofie Hansen, Nicole Probst-Hensch, Robert Bettschart, Marco Pons, Bénédicte Leynaert, Francisco Gómez Real, Thierry Rochat, Julia Dratva, Cornelia Schneider, Dirk Keidel, Christian Schindler, Elisabeth Zemp
RATIONALE: The association between early menarche and new onset of asthma warrants further investigation in those aged >30 years. OBJECTIVES: Using data from the Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults (SAPALDIA), we investigated whether early menarche was associated with new onset of asthma in women aged 18-60 years at baseline. METHODS: Our analysis included 2492 women with information on age at menarche and doctor-diagnosed asthma, who had been asthma free at the time of menarche and had complete covariate information...
July 2017: Maturitas
https://www.readbyqxmd.com/read/28534841/is-neighborhood-green-space-protective-against-associations-between-child-asthma-neighborhood-traffic-volume-and-perceived-lack-of-area-safety-multilevel-analysis-of-4447-australian-children
#17
Xiaoqi Feng, Thomas Astell-Burt
Heavy traffic is a source of air pollution and a safety concern with important public health implications. We investigated whether green space lowers child asthma risk by buffering the effects of heavy traffic and a lack of neighborhood safety. Multilevel models were used to analyze affirmative asthma cases in nationally representative cross-sectional data from 4447 children aged 6-7 years old in Australia. Case-finding was based upon a triangulation of affirmative responses to three questions on doctor-diagnosed asthma, asthma-related medications and illness with wheezing lasting for at least 1 week within the 12 months prior...
May 19, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28533885/-occupational-asthma-compensation-in-the-tunisian-center-cross-sectional-study-over-a-period-of-eight-years
#18
Amira Omrane, Awatef Kreim, Mohamed Adnène Henchi, Selma Kammoun, Leila Bessadi, Charfeddine Amri, Taoufik Khalfallh, Lamia Bouzgarrou
INTRODUCTION: Our study aimed to highlight the epidemiological profile of patients compensated for occupational asthma in the Tunisian Center, to identify their professional characteristics and to determine compensation practices for this occupational disease. METHODS: We conducted an exhaustive retrospective study over a period of eight years. This case study included workers with occupational asthma diagnosed and compensated in the Tunisian Center by the only two medical commissions empowered to set rates for permanent partial disability caused by either a work-related injury or an occupational diseases in the seven central governorates...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28533007/free-25-oh-d-concentrations-are-associated-with-atopy-and-lung-function-in-children-with-asthma
#19
Suzanne L Pollard, John J Lima, Edward Mougey, Karina Romero, Carla Tarazona-Meza, Katherine Tomaino, Gary Malpartida Guzmán, Nadia N Hansel, William Checkley
BACKGROUND: Evidence suggests free mono-hydroxyvitamin D (25[OH]D) concentrations are more strongly linked to certain outcomes than total concentrations; however, no studies have examined the relation between free 25(OH)D and respiratory or allergic disease. OBJECTIVE: To examine associations between total and free 25(OH)D concentrations and asthma outcomes. METHODS: We quantified total and free 25(OH)D concentrations in 137 Peruvian children with asthma and 152 children without asthma and examined associations with asthma outcomes...
May 19, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28532657/mechanistic-link-between-diesel-exhaust-particles-and-respiratory-reflexes
#20
Ryan K Robinson, Mark A Birrell, John J Adcock, Michael A Wortley, Eric D Dubuis, Shu Chen, Catriona M McGilvery, Sheng Hu, Milo S P Shaffer, Sara J Bonvini, Sarah A Maher, Ian S Mudway, Alexandra E Porter, Chris Carlsten, Teresa D Tetley, Maria G Belvisi
BACKGROUND: Diesel exhaust particles (DEPs) are a major component of particulate matter in Europe's largest cities, and epidemiologic evidence links exposure with respiratory symptoms and asthma exacerbations. Respiratory reflexes are responsible for symptoms and are regulated by vagal afferent nerves, which innervate the airway. It is not known how DEP exposure activates airway afferents to elicit symptoms, such as cough and bronchospasm. OBJECTIVE: We sought to identify the mechanisms involved in activation of airway sensory afferents by DEPs...
May 19, 2017: Journal of Allergy and Clinical Immunology
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