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Occupational asthma

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https://www.readbyqxmd.com/read/28652722/pulmonary-rehabilitation-in-copd-available-resources-and-utilization-in-swedish-primary-and-secondary-care
#1
Josefin Sundh, Helena Lindgren, Mikael Hasselgren, Scott Montgomery, Christer Janson, Björn Ställberg, Karin Lisspers
INTRODUCTION: Pulmonary rehabilitation is effective in all stages of COPD. The availability and utilization of pulmonary rehabilitation resources, and the characteristics of COPD patients receiving rehabilitation, were investigated in primary and secondary care in central Sweden. MATERIALS AND METHODS: Data on available pulmonary rehabilitation resources were collected using questionnaires, to 14 hospitals and 54 primary health care centers, and information on utilization of different rehabilitation professionals was obtained from questionnaires completed by 1,329 COPD patients from the same centers...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28649872/indoor-swimming-pool-environments-and-self-reported-irritative-and-respiratory-symptoms-among-lifeguards
#2
Gabrielle Bureau, Benoît Lévesque, Marjolaine Dubé, Denis Gauvin, François Lépine, Denis Laliberté
A web survey was conducted among 870 lifeguards (current and former) to assess the relationship between exposure to indoor swimming pool environments and respiratory health. Associations between respiratory symptoms and asthma with varying lengths of occupational exposure were assessed by multiple logistic regression. Lifeguards exposed more than 500 hours in the previous 12 months experienced more cough (adjustedOR = 2.54, IC95 % = 1.51-4.25), throat (aOR = 2.47, IC95 % = 1.44-4.24) and eye irritation (aOR = 4...
June 25, 2017: International Journal of Environmental Health Research
https://www.readbyqxmd.com/read/28638572/hypersensitivity-pneumonitis-an-overlooked-cause-of-cough-and-dyspnea
#3
Ryan S D'souza, Anthony Donato
Hypersensitivity pneumonitis (HP) is an immune-mediated pulmonary disorder involving inflammation of the lung interstitium, terminal bronchioles, and alveoli caused by the immune response to the inhalation of an offending environmental airborne agent. It can manifest as exertional dyspnea, fatigue, weight loss, and progressive respiratory failure if left untreated. Because of its protean features, it can be misdiagnosed as other common obstructive lung conditions such as asthma. If triggers are not avoided, it can progress to irreversible pulmonary fibrosis...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28638425/the-effect-of-wood-aerosols-and-bioaerosols-on-the-respiratory-systems-of-wood-manufacturing-industry-workers-in-golestan-province
#4
Phateme Badirdast, Mansour Rezazadeh Azari, Soussan Salehpour, Ali Ghadjari, Soheila Khodakarim, Davod Panahi, Moslem Fadaei, Abolfazl Rahimi
BACKGROUND: Occupational exposure to dust leads to acute and chronic respiratory diseases, occupational asthma, and depressed lung function. In the light of a lack of comprehensive studies on the exposure of Iranian workers to wood dusts, the objective of this study was to monitor the occupational exposure to wood dust and bioaerosol, and their correlation with the lung function parameters in chipboard manufacturing industry workers. MATERIALS AND METHODS: A cross-sectional study was conducted on chipboard workers in Golestan Province; a total of 150 men (100 exposed cases and 50 controls) were assessed...
2017: Tanaffos
https://www.readbyqxmd.com/read/28629263/mass-spectrometry-based-analysis-of-murine-bronchoalveolar-lavage-fluid-following-respiratory-exposure-to-4-4-methylene-diphenyl-diisocyanate-aerosol
#5
Justin M Hettick, Brandon F Law, Chen-Chung Lin, Adam V Wisnewski, Paul D Siegel
Diisocyanates are highly reactive electrophiles utilized in the manufacture of a wide range of polyurethane products, and have been identified as causative agents of occupational allergic respiratory disease. However, in spite of the significant occupational health burden associated with diisocyanate-induced asthma, the mechanism of disease pathogenesis remains largely unknown. To better understand the fate of inhaled diisocyanates, a nose-only aerosol exposure system was constructed and utilized to expose a BALB/c mouse model to aerosol generated from 4,4'-methylene diphenyl diisocyanate (MDI)...
June 20, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28625577/risk-factors-for-chronic-cough-among-14-669-individuals-from-the-general-population
#6
Yunus Çolak, Børge G Nordestgaard, Lars C Laursen, Shoaib Afzal, Peter Lange, Morten Dahl
BACKGROUND: Risk factors for chronic cough in the general population have not been described systematically. We identified and ranked chronic cough risk factors at the individual and community level using data from 14669 individuals from the Copenhagen General Population Study. METHODS: Severity of chronic cough was assessed using the Leicester Cough Questionnaire(LCQ). We ranked chronic cough risk factors based on magnitude of age-adjusted odds ratios(ORs) at the individual level and of the population attributable risks(PARs) at the community level...
June 15, 2017: Chest
https://www.readbyqxmd.com/read/28614931/-evaluation-of-diagnostic-criteria-for-occupational-asthma-gbz-57%C3%A2-2008
#7
Q H Du, J Y Gu, Y Rong
No abstract text is available yet for this article.
April 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28614923/-serum-levels-of-periostin-and-their-influencing-factors-in-the-beta-lactam-antibiotic-enterprise-workers
#8
S S Gao, Z S Song, Q Jia, X Li, C L Li, X W Chen, C B Zheng
Objective: To observe serum levels of periostin, ECP, IgE in the antibiotic enterprise workers, and study the role of periostin, ECP, IgE in the development of allergic inflammation. Methods: 90 cases with asthma or rhinitis were enrolled as disease group, another 117 workers exposed to 7-ACA、6-APA dust without suffering from allergic illness, are chosen as group of dust exposed, and 192 healthy workers who didn't contact dust were chosen as control group. Questionnaires were used to learn their basic information...
April 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28598931/distinct-clinical-phenotypes-of-occupational-asthma-due-to-diisocyanates
#9
Paola Mason, Maria Cristina Scarpa, Filippo Liviero, Gabriella Guarnieri, Piero Maestrelli
OBJECTIVE: To assess whether diisocyanate occupational asthma represents a unique phenotype. METHODS: We studied 187 patients with diagnosis of asthma due to diisocyanates confirmed by a positive specific inhalation challenge. The simplified algorithm from severe asthma research program (SARP) (Moore et al, 2010) was applied to classify patients into five clusters. RESULTS: Our patients were allocated in three of the five clusters described in common asthma, since the most severe Clusters (4 and 5) were not represented...
June 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28592098/-the-effect-of-short-term-exposure-to-ambient-no-2-on-lung-function-and-fractional-exhaled-nitric-oxide-in-33-chronic-obstructive-pulmonary-disease-patients
#10
J Shan, Y Ni, W Dong, J H Xu, L Pan, H Y Li, X Yang, S W Wu, Y H Chen, F R Deng, X B Guo
Objectives: To investigate the effect of short-term exposure to ambient NO(2) has influence on lung function and fractional exhaled nitric oxide (FeNO) in chronic obstructive pulmonary disease (COPD) patients. Methods: A panel of doctor-diagnosed stable COPD patients (n=33) were recruited and repeatedly measured for lung function and FeNO from December 2013 to October 2014. The patients who lived in Beijing for more than one year and aged between 60 and 85 years old were included in the study. We excluded patients with asthma, bronchial tensor, lung cancer and other respiratory disorders other than chronic obstructive pulmonary disease and occupational exposure and chest trauma surgery patients...
June 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28589108/asthma-and-allergic-rhinitis-correlation-in-palm-tree-workers-of-jahrom-city-in-2016
#11
Mohammad Amin Farahmand Fard, Narges Khanjani, Aliasghar Arabi Mianroodi, Ahad Ashrafi Asgarabad
INTRODUCTION: Allergic rhinitis and asthma can be related to occupation. The present study aimed to investigate the correlation between asthma or allergic rhinitis and employment in the palm tree gardens of Jahrom, Iran. MATERIALS AND METHODS: This was a cross-sectional study including 50 palm tree garden workers and a control group of 50 office employees. Data collection included demographics, as well as standard International Study of Asthma and Allergies in Childhood (ISAAC) and A New Symptom-Based Questionnaire for Predicting the Presence of Asthma (ASQ) questionnaires...
May 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28533885/-occupational-asthma-compensation-in-the-tunisian-center-cross-sectional-study-over-a-period-of-eight-years
#12
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/28505409/human-asthmatic-bronchial-cells-are-more-susceptible-to-sub-chronic-repeated-exposures-of-aerosolized-carbon-nanotubes-at-occupationally-relevant-doses-than-healthy-cells
#13
Savvina Chortarea, Hana Barosova, Martin James David Clift, Peter Wick, Alke Petri-Fink, Barbara Rothen-Rutishauser
Although acute pulmonary toxicity of carbon nanotubes (CNTs) has been extensively investigated, the knowledge of potential health effects following chronic occupational exposure is currently limited and based only upon in vivo approaches. Our aim was to realistically mimic sub-chronic inhalation of multi-walled CNTs (MWCNTs) in vitro, using the Air-Liquid Interface Cell Exposure system (ALICE) for aerosol exposures onto reconstituted human bronchial tissue from healthy and asthmatic donors. The reliability and sensitivity of the system was validated using crystalline quartz (DQ12), which elicited an increased (pro-)inflammatory response, as reported in vivo...
May 15, 2017: ACS Nano
https://www.readbyqxmd.com/read/28497920/prevalence-of-self-reported-allergic-diseases-and-ige-levels-a-2010-knhanes-analysis
#14
Hye Jung Park, Eun Jin Kim, Dankyu Yoon, Jeom Kyu Lee, Woo Sung Chang, Yoen Mi Lim, Jung Won Park, Joo Shil Lee
PURPOSE: The prevalence of allergic diseases is known to be associated with both demographic and environmental factors. Herein, we aimed to determine significant factors associated with the prevalence of allergic diseases and with total immunoglobulin E (tIgE) and specific immunoglobulin E (sIgE) levels in Korea. METHODS: We analyzed unweighted data collected by the 2010 Korea National Health and Nutrition Examination Survey for 2,342 subjects who underwent serum tests for tIgE and sIgE to Dermatophagoides farinae, dog, and Blattella germanica, representing a sample of 16,003,645 citizens, by considering the sample weight and stratification...
July 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28497854/allergic-sinusitis-and-severe-asthma-caused-by-occupational-exposure-to-locust-bean-gum-case-report
#15
Brie Hawley, Kristin J Cummings, Mohammed Mohammed, Anne E Dimmock, Rebecca Bascom
We present a case that highlights the difficulties with diagnosis and the dangers of occupational allergic sinusitis and asthma left unrecognized. We describe the case history of a man who experienced work-related symptoms 1 year after beginning work as a cheesemaker at a creamery, and whose respiratory symptoms progressively worsened over 16 years before an occupational cause of his asthma was identified. His initial discrete episodes of sinusitis and acute bronchitis evolved into persistent asthma of increasing severity with exacerbations requiring repeated emergency room treatment...
July 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28497800/reciprocal-regulation-of-the-il9-locus-by-counteracting-activities-of-transcription-factors-irf1-and-irf4
#16
Lucia Campos Carrascosa, Matthias Klein, Yohko Kitagawa, Christina Lückel, Federico Marini, Anika König, Anna Guralnik, Hartmann Raifer, Stefanie Hagner-Benes, Diana Rädler, Andreas Böck, Cholho Kang, Michael Lohoff, Holger Garn, Bianca Schaub, Friederike Berberich-Siebelt, Shimon Sakaguchi, Tobias Bopp, Magdalena Huber
The T helper 9 (Th9) cell transcriptional network is formed by an equilibrium of signals induced by cytokines and antigen presentation. Here we show that, within this network, two interferon regulatory factors (IRF), IRF1 and IRF4, display opposing effects on Th9 differentiation. IRF4 dose-dependently promotes, whereas IRF1 inhibits, IL-9 production. Likewise, IRF1 inhibits IL-9 production by human Th9 cells. IRF1 counteracts IRF4-driven Il9 promoter activity, and IRF1 and IRF4 have opposing function on activating histone modifications, thus modulating RNA polymerase II recruitment...
May 12, 2017: Nature Communications
https://www.readbyqxmd.com/read/28489470/reaction-products-of-hexamethylene-diisocyanate-vapors-with-self-molecules-in-the-airways-of-rabbits-exposed-via-tracheostomy
#17
Adam V Wisnewski, Jean Kanyo, Jennifer Asher, James A Goodrich, Grace Barnett, Lyn Patrylak, Jian Liu, Carrie A Redlich, Ala F Nassar
1. Hexamethylenediisocyanate (HDI) is a widely used aliphatic diisocyanate and a well-recognized cause of occupational asthma. 2. "Self" molecules (peptides/proteins) in the lower airways, susceptible to chemical reactivity with HDI, have been hypothesized to play a role in asthma pathogenesis and/or chemical metabolism, but remain poorly characterized. 3. This study employed unique approaches to identify and characterize "self" targets of HDI reactivity in the lower airways. Anesthetized rabbits free breathed through a tracheostomy tube connected to chambers containing either, O2, or O2 plus ∼200 ppb HDI vapors...
June 1, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28483971/association-of-household-cleaning-agents-and-disinfectants-with-asthma-in-young-german-adults
#18
Tobias Weinmann, Jessica Gerlich, Sabine Heinrich, Dennis Nowak, Erika von Mutius, Christian Vogelberg, Jon Genuneit, Stefanie Lanzinger, Saba Al-Khadra, Tina Lohse, Irina Motoc, Viola Walter, Katja Radon
OBJECTIVES: We scrutinised the association of private use of household sprays and disinfectants with asthma incidence in young adults in the transition from school to working life. METHODS: Between 2007 and 2009,2051 young adults aged 19-24 years living in two major German cities took part in the Study on Occupational Allergy Risks II. Self-reported exposure to household sprays and disinfectants was characterised according to a composite score for frequency of use as no use (score=0), low use (score between 1 and the median), medium use (score between the median and the 90th percentile) and high use (score above the 90th percentile)...
May 8, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28481622/cardiomyocytes-of-the-heart-and-pulmonary-veins-novel-contributors-to-asthma
#19
Stephen Sai Folmsbee, Cara J Gottardi
Recent genome-wide association studies have implicated both cardiac and pulmonary vein-related genes in the pathogenesis of asthma. Since cardiac cells are not present in lung airways or viewed to affect the immune system, interpretation of these findings in the context of more well-established contributors to asthma has remained challenging. However, cardiomyocytes are present in the lung, specifically along pulmonary veins, and recent murine models suggest that cardiac cells lining pulmonary veins may contribute to allergic airway disease...
May 8, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28481378/occupational-diseases-in-the-automotive-industry-in-czechia-geographic-and-medical-context
#20
Jan Jarolímek, Pavel Urban, Petr Pavlínek, Dagmar Dzurova
OBJECTIVES: The automotive industry represents the most important industrial sector in Czechia. The objective of this study has been to analyze the occurrence of occupational diseases (OD) in the automotive industry during the period from 2001 till 2014. MATERIAL AND METHODS: Data on OD cases was retrieved from the National Registry of OD. Further, we conducted a survey in automotive companies with focus on occupational health services and positions of the companies in global production networks (GPNs)...
May 8, 2017: International Journal of Occupational Medicine and Environmental Health
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