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https://www.readbyqxmd.com/read/28429306/mitochondrial-function-in-allergic-disease
#1
REVIEW
Divyaanka Iyer, Navya Mishra, Anurag Agrawal
PURPOSE OF THE REVIEW: The connections between allergy, asthma and metabolic syndrome are becoming increasingly clear. Recent research suggests a unifying mitochondrial link between the diverse phenotypes of these interlinked morbidities. The scope of this review is to highlight cellular mechanisms, epidemiology and environmental allergens influencing mitochondrial function and its importance in allergy and asthma. We briefly also consider the potential of mitochondria-targeted therapies in prevention and cure...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28424066/short-term-exposure-to-pm2-5-and-vanadium-and-changes-in-asthma-gene-dna-methylation-and-lung-function-decrements-among-urban-children
#2
Kyung Hwa Jung, David Torrone, Stephanie Lovinsky-Desir, Matthew Perzanowski, Joshua Bautista, Jacqueline R Jezioro, Lori Hoepner, Jamie Ross, Frederica P Perera, Steven N Chillrud, Rachel L Miller
BACKGROUND: Both short and long-term exposure to traffic-related air pollutants have been associated with asthma and reduced lung function. We hypothesized that short-term indoor exposure to fine particulate matter <2.5 μm (PM2.5) and vanadium (V) would be associated with altered buccal cell DNA methylation of targeted asthma genes and decreased lung function among urban children in a nested subcohort of African American and Dominican children. METHODS: Six day integrated levels of air pollutants were measured from children's homes (age 9-14; n = 163), repeated 6 months later (n = 98)...
April 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28399185/prevalence-and-risk-factors-of-airflow-limitation-in-a-mongolian-population-in-ulaanbaatar-cross-sectional-studies
#3
Motoyuki Nakao, Keiko Yamauchi, Yoko Ishihara, Hisamitsu Omori, Bandi Solongo, Dashtseren Ichinnorov
The burden of chronic obstructive pulmonary disease (COPD) is expected to increase in the coming decades. In Ulaanbaatar, Mongolia, air pollution, which has been suggested to correlate with COPD, is a growing concern. However, the COPD prevalence in Ulaanbaatar is currently unknown. This study aims to estimate the prevalence of airflow limitation and investigate the association between airflow limitation and putative risk factors in the Mongolian population. Five cross-sectional studies were carried out in Ulaanbaatar...
2017: PloS One
https://www.readbyqxmd.com/read/28391146/a-new-approach-to-spatial-identification-of-potential-health-hazards-associated-with-childhood-asthma
#4
Alina Svechkina, Boris A Portnov
RESEARCH BACKGROUND: Childhood asthma is a chronic disease, known to be linked to prolonged exposure to air pollution. However, the identification of specific health hazards, associated with childhood asthma is not always straightforward, due to the presence of multiple sources of air pollution in urban areas. In this study, we test a novel approach to the spatial identification of environmental hazards that have the highest probability of association with the observed asthma morbidity patterns...
April 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28390661/ambient-air-pollution-and-low-birth-weight-are-some-women-more-vulnerable-than-others
#5
Nadja Westergaard, Ulrike Gehring, Rémy Slama, Marie Pedersen
BACKGROUND AND OBJECTIVES: Ambient air pollution is controllable, and it is one of the greatest environmental threats to human health. Studies conducted worldwide have provided evidence that maternal exposure to ambient air pollution during pregnancy enhances the risk of low birth weight at term (TLBW, <2500g among infants born ≥37 completed weeks of gestation), a maker of intrauterine growth restriction (IUGR), and suggest that some subgroups of pregnant women who are smoking, of low or high body-mass index (BMI), low socioeconomic status (SES) or asthma are more vulnerable towards the effect of ambient air pollution...
April 6, 2017: Environment International
https://www.readbyqxmd.com/read/28382539/air-pollution-and-children-s-asthma-related-emergency-hospital-visits-in-southeastern-france
#6
Julie Mazenq, Jean-Christophe Dubus, Jean Gaudart, Denis Charpin, Antoine Nougairede, Gilles Viudes, Guilhem Noel
Children's asthma is multifactorial. Environmental factors like air pollution exposure, meteorological conditions, allergens, and viral infections are strongly implicated. However, place of residence has rarely been investigated in connection with these factors. The primary aim of our study was to measure the impact of particulate matter (PM), assessed close to the children's homes, on asthma-related pediatric emergency hospital visits within the Bouches-du-Rhône area in 2013. In a nested case-control study on 3- to 18-year-old children, each control was randomly matched on the emergency room visit day, regardless of hospital...
April 5, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28382281/predictive-and-prognostic-biomarkers-of-respiratory-diseases-due-to-particulate-matter-exposure
#7
REVIEW
Hyo Jeong Kim, Min Gi Choi, Moo Kyun Park, Young Rok Seo
Air pollution is getting severe and concerns about its toxicity effects on airway and lung disease are also increasing. Particulate matter (PM) is major component of air pollutant. It causes respiratory diseases, such as asthma, chronic obstructive pulmonary disease, lung cancer, and so on. PM particles enter the airway and lung by inhalation, causing damages to them. Especially, PM2.5 can penetrate into the alveolus and pass to the systemic circulation. It can affect the cardiopulmonary system and cause cardiopulmonary disorders...
March 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28360458/prevalence-and-etiological-profile-of-chronic-obstructive-pulmonary-disease-in-nonsmokers
#8
Tariq Mahmood, Ravindra Kumar Singh, Surya Kant, Amitabh Das Shukla, Alok Chandra, Rajneesh Kumar Srivastava
BACKGROUND: Tobacco smoking has been recognized as the most important risk factor for chronic obstructive pulmonary disease (COPD) for a long time, but recent studies have shown that nonsmokers also contribute to a significant proportion of COPD. This study was performed to find out the proportion of nonsmoker individuals among COPD patients and to determine various etiologies in nonsmoker COPD patients. MATERIALS AND METHODS: This study was an observational cross-sectional study conducted in Department of Pulmonary Medicine, MLN Medical College, Allahabad...
March 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28344390/algal-cultivation-in-urban-wastewater-an-efficient-way-to-reduce-pharmaceutical-pollutants
#9
Francesco G Gentili, Jerker Fick
The purpose of this study was to investigate whether pharmaceutical pollutants in urban wastewater can be reduced during algal cultivation. A mixed population of wild freshwater green algal species was grown on urban wastewater influent in a 650 L photobioreactor under natural light and with the addition of flue gases. Removal efficiencies were very high (>90 %), moderate (50-90 %), low (10-50 %), and very low or non-quantifiable (<10 %) for 9, 14, 11, and 18 pharmaceuticals, respectively, over a 7-day period...
2017: Journal of Applied Phycology
https://www.readbyqxmd.com/read/28334179/bayesian-distributed-lag-interaction-models-to-identify-perinatal-windows-of-vulnerability-in-children-s-health
#10
Ander Wilson, Yueh-Hsiu Mathilda Chiu, Hsiao-Hsien Leon Hsu, Robert O Wright, Rosalind J Wright, Brent A Coull
Epidemiological research supports an association between maternal exposure to air pollution during pregnancy and adverse children's health outcomes. Advances in exposure assessment and statistics allow for estimation of both critical windows of vulnerability and exposure effect heterogeneity. Simultaneous estimation of windows of vulnerability and effect heterogeneity can be accomplished by fitting a distributed lag model (DLM) stratified by subgroup. However, this can provide an incomplete picture of how effects vary across subgroups because it does not allow for subgroups to have the same window but different within-window effects or to have different windows but the same within-window effect...
February 27, 2017: Biostatistics
https://www.readbyqxmd.com/read/28333691/asthma-prevalence-and-severity-in-low-resource-communities
#11
Álvaro A Cruz, Rafael Stelmach, Eduardo V Ponte
PURPOSE OF REVIEW: The prevalence of asthma was thought to be low in most low-income countries, but several reports have indicated this is not always true. This is a narrative review of recent publications on the burden of asthma in low and middle-income countries (LMIC) and underprivileged communities from developed countries. RECENT FINDINGS: Several studies have reported a low prevalence of asthma is LMIC, but indicate it is increasing. In the last few years, however, many surveys demonstrated this may not always be true...
March 22, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28331347/environmental-triggers-and-avoidance-in-the-management-of-asthma
#12
REVIEW
Clarisse Gautier, Denis Charpin
Identifying asthma triggers forms the basis of environmental secondary prevention. These triggers may be allergenic or nonallergenic. Allergenic triggers include indoor allergens, such as house dust mites (HDMs), molds, pets, cockroaches, and rodents, and outdoor allergens, such as pollens and molds. Clinical observations provide support for the role of HDM exposure as a trigger, although avoidance studies provide conflicting results. Molds and their metabolic products are now considered to be triggers of asthma attacks...
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/28321937/ultrafine-particles-and-black-carbon-personal-exposures-in-asthmatic-and-non-asthmatic-children-at-school-age
#13
Pau Pañella, Maribel Casas, David Donaire-Gonzalez, Raquel Garcia-Esteban, Oliver Robinson, Antònia Valentín, John Gulliver, Isabelle Momas, Mark Nieuwenhuijsen, Martine Vrijheid, Jordi Sunyer
Traffic-related air pollution (TRAP) exposure during childhood is associated with asthma; however, the contribution of the different TRAP pollutants in each microenvironment (home, school, transportation, others) in asthmatic and non-asthmatic children is unknown. Daily (24 h) personal black carbon (BC), ultrafine particles (UFP), and alveolar lung deposited surface area (LDSA) individual exposure measurements were obtained from 100 children (29 past and 21 current asthmatics, 50 non-asthmatics) aged 9±0.7 years from the INMA-Sabadell cohort (Catalonia, Spain)...
March 20, 2017: Indoor Air
https://www.readbyqxmd.com/read/28321701/burden-of-disease-attributed-to-ambient-pm2-5-and-pm10-exposure-in-190-cities-in-china
#14
Kamal Jyoti Maji, Mohit Arora, Anil Kumar Dikshit
Particulate air pollution is becoming a serious public health concern in urban cities of China. Association of disability-adjusted life years (DALYs) and economic loss with air pollution-related health effects demand quantitative analysis for correctional measures in air quality. This study applies an epidemiology-based exposure-response function to obtain the quantitative estimate of health impact of particulate matter PM2.5 and PM10 across 190 cities of China during years 2014-2015. The annual average concentration of PM2...
March 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28319180/effect-of-outdoor-air-pollution-on-asthma-exacerbations-in-children-and-adults-systematic-review-and-multilevel-meta-analysis
#15
Pablo Orellano, Nancy Quaranta, Julieta Reynoso, Brenda Balbi, Julia Vasquez
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...
2017: PloS One
https://www.readbyqxmd.com/read/28304360/traffic-related-air-pollution-and-childhood-asthma-recent-advances-and-remaining-gaps-in-the-exposure-assessment-methods
#16
REVIEW
Haneen Khreis, Mark J Nieuwenhuijsen
Background: Current levels of traffic-related air pollution (TRAP) are associated with the development of childhood asthma, although some inconsistencies and heterogeneity remain. An important part of the uncertainty in studies of TRAP-associated asthma originates from uncertainties in the TRAP exposure assessment and assignment methods. In this work, we aim to systematically review the exposure assessment methods used in the epidemiology of TRAP and childhood asthma, highlight recent advances, remaining research gaps and make suggestions for further research...
March 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28300662/diisononyl-phthalate-induces-asthma-via-modulation-of-th1-th2-equilibrium
#17
Yun-Ho Hwang, Man-Jeong Paik, Sung-Tae Yee
Diisononyl phthalate (DINP), a member of the phthalate family, is used to plasticize polyvinyl chloride (PVC). This chemical is known to enhance airway inflammation in the OVA-induced asthma model (adjuvant effects) and aggravate allergic dermatitis. Moreover, DINP enhances the production of interleukin-4 in activated CD4(+) T cells. However, the effect of DINP itself on the differentiation of naïve CD4(+) T cells into T helper cells (Th1/Th2) in vitro and allergic asthma in vivo has not yet been studied. In this study, DINP was shown to suppress the polarization of Th1 and enhance the polarization of Th2 from naïve CD4(+) T cells in vitro...
March 12, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28293925/genetic-signatures-of-asthma-exacerbation
#18
REVIEW
Heung Woo Park, Kelan G Tantisira
Asthma exacerbation (AE) usually denotes worsening of asthma symptoms that requires intense management to prevent further deterioration. AE has been reported to correlate with clinical and demographic factors, such as race, gender, and treatment compliance as well as environmental factors, such as viral infection, smoking, and air pollution. In addition, recent observations suggest that there are likely to be genetic factors specific to AE. Understanding genetic factors specific to AE is essential to develop therapy tailored for exacerbation-prone asthma...
May 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28286602/climate-change-allergy-and-asthma-and-the-role-of-tropical-forests
#19
REVIEW
Gennaro D'Amato, Carolina Vitale, Nelson Rosario, Herberto Josè Chong Neto, Deborah Carla Chong-Silva, Francisco Mendonça, Josè Perini, Loraine Landgraf, Dirceu Solé, Mario Sánchez-Borges, Ignacio Ansotegui, Maria D'Amato
BACKGROUND: Tropical forests cover less than 10 per cent of all land area (1.8 × 107 km(2)) and over half of the tropical-forest area (1.1 × 107 Km(2)) is represented by humid tropical forests (also called tropical rainforests). The Amazon basin contains the largest rainforest on Earth, almost 5.8 million km(2), and occupies about 40% of South America; more than 60% of the basin is located in Brazil and the rest in Bolivia, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela...
2017: World Allergy Organization Journal
https://www.readbyqxmd.com/read/28284326/effects-of-particulate-matter-on-respiratory-disease-and-the-impact-of-meteorological-factors-in-busan-korea
#20
Eun-Jung Jo, Woo-Seop Lee, Hyun-Young Jo, Chang-Hoon Kim, Jung-Seop Eom, Jeong-Ha Mok, Mi-Hyun Kim, Kwangha Lee, Ki-Uk Kim, Min-Ki Lee, Hye-Kyung Park
BACKGROUND: Both air pollution and weather impact hospitalization for respiratory diseases. However, few studies have investigated the contribution of weather to hospitalization related to the adverse effects of air pollution. This study analyzed the effects of particulate matter (PM) on daily respiratory-related hospital admissions, taking into account meteorological factors. METHODS: Daily hospital admissions for respiratory diseases (acute bronchitis, allergic rhinitis, and asthma) between 2007 and 2010 were extracted from the National Health Insurance Corporation, Korea...
March 2017: Respiratory Medicine
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