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https://www.readbyqxmd.com/read/28524802/effects-of-occupational-silica-exposure-on-oxidative-stress-and-immune-system-parameters-in-ceramic-workers-in-turkey
#1
Hatice Gul Anlar, Merve Bacanli, Servet İritaş, Ceylan Bal, Türker Kurt, Engin Tutkun, O Hinc Yilmaz, Nursen Basaran
Silica is the second most common element after oxygen, and therefore, exposures to crystalline silica dust occur in a large variety of occupations such as metal foundries, constructions, and ceramic, quarry, and pottery industries. Since crystalline silica exposure has been linked with silicosis, lung cancer, and other pulmonary diseases, adverse effect attributed to this element has be a cause for concern worldwide. Silica dust exposure in workers is still considered to be important health problem especially in developing countries...
May 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28514023/silicosis-prevalence-and-risk-factors-in-semi-precious-stone-mining-in-brazil
#2
Tamires P Souza, Guilherme Watte, Alaíde M Gusso, Rafaela Souza, José da S Moreira, Marli M Knorst
BACKGROUND: Underground mining generates large amounts of dust and exposes workers to silica. This study aims to determine the prevalence and predictor factors for the development of silicosis among semi-precious-stone mineworkers in southern Brazil working in a self-administered cooperative. METHODS: In a cross-sectional study of 348 current workers and retirees, demographic data, medical, and occupational history were collected through an interview performed by a nurse and medical record review...
June 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28513256/do-current-oels-for-silica-protect-from-obstructive-lung-impairment-a-critical-review-of-epidemiological-data
#3
Perrine Hoet, Laure Desvallées, Dominique Lison
Inhalation of respirable crystalline silica (RCS) can lead to serious health effects such as silicosis and lung cancer. There also seems to be a general consensus to consider that RCS exposure is associated with obstructive lung impairment or chronic obstructive pulmonary disease (COPD), a leading cause of mortality, morbidity, and disability worldwide. It is, however, not clear whether occupational exposure levels (OELs), generally set to prevent silicosis, also protect workers from developing an obstructive impairment...
May 17, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28499430/genome-wide-dna-methylation-analysis-in-lung-fibroblasts-co-cultured-with-silica-exposed-alveolar-macrophages
#4
Juan Li, Wu Yao, Lin Zhang, Lei Bao, Huiting Chen, Di Wang, Zhongzheng Yue, Yiping Li, Miao Zhang, Changfu Hao
BACKGROUND: Exposure to crystalline silica is considered to increase the risk of lung fibrosis. The primary effector cell, the myofibroblast, plays an important role in the deposition of extracellular matrix (ECM). DNA methylation change is considered to have a potential effect on myofibroblast differentiation. Therefore, the present study was designed to investigate the genome-wide DNA methylation profiles of lung fibroblasts co-cultured with alveolar macrophages exposed to crystalline silica in vitro...
May 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28490299/complicated-silicosis-resulting-from-occupational-exposure-to-engineered-stone-products
#5
Elie Matar, Anthony Frankel, Lucinda Katharine McCowan Blake, Elizabeth J Silverstone, Anthony R Johnson, Deborah H Yates
No abstract text is available yet for this article.
May 15, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28481151/association-between-snps-at-il-17a-and-il-17f-and-susceptibility-to-accelerated-silicosis
#6
Ebrahim Hassani, Morteza Bagheri, Isa Abdi Rad, Iraj Mohebbi
The association between single nucleotide polymorphisms (SNPs) in the interleukin (IL)-17 gene and silicosis has been evaluated in different populations. The aim of the present study was to analyze the association between SNPs at IL-17A (-832A/G) and IL-17F (+7488A/G) and susceptibility to accelerated silicosis in the Iranian Kurdish population. We studied 48 patients with accelerated silicosis and 62 controls. Genomic DNA was isolated using the "salting out" method. PCR-RFLP was performed for all SNPs typing...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28443719/influence-of-quartz-exposure-on-lung-cancer-types-in-cases-of-lymph-node-only-silicosis-and-lung-silicosis-in-german-uranium-miners
#7
Stefan Mielke, Dirk Taeger, Kerstin Weitmann, Thomas Brüning, Wolfgang Hoffmann
Objective Inhaled crystalline quartz is carcinogen. Analyses shown differences in the distribution of lung cancer types depending on the status of silicosis. Methods 2,524 lung tumor cases from the WISMUT autopsy repository database were used. Silicosis was differentiated in cases without silicosis in lung parenchyma and its lymph nodes, with lymph node-only silicosis or with lung silicosis including lymph node silicosis. The proportions of adenocarcinoma, squamous cell and small cell lung cancer mortality for increasing quartz exposures were estimated in a multinomial logistic regression model...
April 26, 2017: Archives of Environmental & Occupational Health
https://www.readbyqxmd.com/read/28430622/serious-adverse-events-of-cell-therapy-for-respiratory-diseases-a-systematic-review-and-meta-analysis
#8
REVIEW
Runzhen Zhao, Zhenlei Su, Jing Wu, Hong-Long Ji
BACKGROUND: Cell therapy holds the most promising for acute and chronic deleterious respiratory diseases. However, the safety and tolerance for lung disorders are controversy. METHODS: We undertook a systematic review and meta-analyses of all 23 clinical studies of cell therapy. The outcomes were odds ratio (OR), risk difference (RD), Peto OR, relative risk, and mean difference of serious adverse events. RESULTS: 342 systemic infusions and 57 bronchial instillations (204 recipients) of cells were analyzed for acute respiratory distress syndrome (ARDS), bronchopulmonary dysplasia, pulmonary arterial hypertension, silicosis, sarcoidosis, extensively drug-resistant tuberculosis, chronic obstructive pulmonary diseases (COPD), and idiopathic pulmonary fibrosis...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425640/profiling-of-the-silica-induced-molecular-events-in-lung-epithelial-cells-using-the-rna-seq-approach
#9
Judy Y W Chan, Joseph C C Tsui, Patrick T W Law, Winnie K W So, Doris Y P Leung, Michael M K Sham, Stephen K W Tsui, Carmen W H Chan
Silicosis is a prolonged, irreversible and incurable occupational disease, and there is a significant number of newly diagnosed cases every year in Hong Kong. Due to the long latency of the disease, the diagnosis can be missed until detailed clinical examination at a later stage. For a better control of this deadly disease, detailing the pro-inflammatory and fibrotic events in the macrophage would be instrumental in understanding the pathogenesis of the disease and essential for the significant biomarkers discovery...
April 20, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28423094/complications-of-chronic-necrotizing-pulmonary-aspergillosis-review-of-published-case-reports
#10
Aleksandra Barac, Tatjana Adzic Vukicevic, Aleksandra Dudvarski Ilic, Salvatore Rubino, Vladimir Zugic, Goran Stevanovic
Chronic necrotizing pulmonary aspergillosis (CNPA), a form of chronic pulmonary aspergillosis (CPA), affects immunocompetent or mildly immunocompromised persons with underlying pulmonary disease. These conditions are associated with high morbidity and mortality and often require long-term antifungal treatment. The long-term prognosis for patients with CNPA and the potential complications of CNPA have not been well documented. The aim of this study was to review published papers that report cases of CNPA complications and to highlight risk factors for development of CNPA...
April 13, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28418335/evaluation-of-dynamic-disulphide-thiol-homeostasis-in-silica-exposed-workers
#11
Meşide Gündüzöz, Ceylan Bal, Murat Büyükşekerci, Salim Neşelioğlu, Türkan Nadir Öziş, Servet İritaş, Halil Kara, Özcan Erel
BACKGROUND: Oxidative stress is implicated as one of the main molecular mechanism underlying silicosis. AIMS: In this study, our aim was to asses the redox status in occupationally silica-exposed workers, by evaluating the dynamic thiol-disulphide homeostasis. STUDY DESIGN: Case-control study. METHODS: Thirty-six male workers occupationally exposed to silica particles and 30 healthy volunteers, working as office workers were included to the study...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28409224/occupational-exposure-to-respirable-crystalline-silica-and-chronic-non-malignant-renal-disease-systematic-review-and-meta-analysis
#12
REVIEW
Matthias Möhner, Anne Pohrt, Johannes Gellissen
BACKGROUND: While occupational exposure to respirable silica is known to lead to lung disease, most notably silicosis, its association with chronic kidney disease is unclear. OBJECTIVES: This review explores the association between occupational exposure to respirable silica and chronic non-malignant renal disease such as glomerulonephritis. The evidence has been collected and compiled. Possible sources of bias are thoroughly discussed. METHODS: Cohort studies with silica exposure and case-control studies of renal disease were searched in PubMed until January 2015...
April 13, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28395683/pulmonary-scar-carcinoma-in-south-africa
#13
N Jenkins, E M Irusen, C F N Koegelenberg
BACKGROUND: The association between lung scarring and the subsequent development of cancer remains controversial. South Africa has one of the highest incidences of tuberculosis in the world, and resultant scarring may predispose to malignancy. The country also carries a very high burden of smoking and smoking-related diseases that may be synergistic in malignant transformation. OBJECTIVE: To assess the frequency of pulmonary scarring in patients with lung cancer...
March 29, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28393994/-psychiatry-and-occupational-diseases-act-in-chile-historical-and-critical-review-of-a-complex-relationship
#14
Juan C Almonte, Cristián Mena, Sofía Ortiz, Juan P Osorio
The Work Accidents and Occupational Diseases Act exists in Chile since 1968. It uses a single model for the understanding and management of both somatic diseases like silicosis and psychiatric disorders. During the last decade in Chile, the consultation rates due to psychiatric conditions of probable labor origin has rose over 1,000%, a factor that underscored the deficiencies of this model. The aim of this paper is to analyze the consequences of the application of this act in the psychiatric field for almost 50 years after its promulgation...
December 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28373994/neutrophil-extracellular-traps-and-microcrystals
#15
REVIEW
Balázs Rada
Neutrophil extracellular traps represent a fascinating mechanism by which PMNs entrap extracellular microbes. The primary purpose of this innate immune mechanism is thought to localize the infection at an early stage. Interestingly, the ability of different microcrystals to induce NET formation has been recently described. Microcrystals are insoluble crystals with a size of 1-100 micrometers that have different composition and shape. Microcrystals have it in common that they irritate phagocytes including PMNs and typically trigger an inflammatory response...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28365186/plastic-bronchitis-in-a-patient-with-silicosis
#16
José Jesús Blanco Pérez, Victoria Arnalich Montiel, José Luis Guerra Vales
No abstract text is available yet for this article.
March 29, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28360865/bosutinib-therapy-ameliorates-lung-inflammation-and-fibrosis-in-experimental-silicosis
#17
Priscila J Carneiro, Amanda L Clevelario, Gisele A Padilha, Johnatas D Silva, Jamil Z Kitoko, Priscilla C Olsen, Vera L Capelozzi, Patricia R M Rocco, Fernanda F Cruz
Silicosis is an occupational lung disease for which no effective therapy exists. We hypothesized that bosutinib, a tyrosine kinase inhibitor, might ameliorate inflammatory responses, attenuate pulmonary fibrosis, and thus improve lung function in experimental silicosis. For this purpose, we investigated the potential efficacy of bosutinib in the treatment of experimental silicosis induced in C57BL/6 mice by intratracheal administration of silica particles. After 15 days, once disease was established, animals were randomly assigned to receive DMSO or bosutinib (1 mg/kg/dose in 0...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28355704/-a-trend-analysis-of-the-incidence-of-occupational-diseases-in-chongqing-china-from-2006-to-2014
#18
X C Liu, D Luo, G L Liu, J Y Zhang, H D Zhang, S Q Cheng
Objective: To investigate the incidence of occupational diseases in Chongqing, China, from 2006 to 2014, and to analyze the harm, features, and trend of occupational diseases in Chongqing. Methods: The data of new cases of occupational diseases from 2006 to 2014 were collected, and the patients with a confirmed diagnosis of occupational diseases were selected as study subjects to analyze the incidence of occupational diseases in Chongqing. Results: There were 17499 cases of occupational diseases in total in Chongqing from 2006 to 2014...
February 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28355701/-incidence-and-trend-of-occupational-diseases-in-ningbo-china-from-2006-to-2015
#19
X H Li, A H Wang, P B Leng, G L Bian
Objective: To investigate the incidence, distribution features, and incidence trend of occupational diseases in Ningbo, China, from 2006 to 2015. Methods: In February 2016, the data on occupational disease report cards in the occupational disease and occupational health information system from 2006 to 2015 were collected to perform a comprehensive analysis of the types, incidence trend, population characteristics, and enterprise characteristics of occupational diseases. Results: There were 845 new cases of occupational diseases in Ningbo from 2006 to 2015, among which 596 (70...
February 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28355417/organosilane-based-coating-of-quartz-species-from-the-traditional-ceramics-industry-evidence-of-hazard-reduction-using-in-vitro-and-in-vivo-tests
#20
Christina Ziemann, Alberto Escrig, Giuliana Bonvicini, Maria Jesús Ibáñez, Eliseo Monfort, Arturo Salomoni, Otto Creutzenberg
The exposure to respirable crystalline silica (RCS), e.g. quartz, in industrial settings can induce silicosis and may cause tumours in chronic periods. Consequently, RCS in the form of quartz and cristobalite has been classified as human lung carcinogen category 1 by the International Agency for Research on Cancer in 1997, acknowledging differences in hazardous potential depending on source as well as chemical, thermal, and mechanical history. The physico-chemical determinants of quartz toxicity are well understood and are linked to density and abundance of surface silanol groups/radicals...
May 1, 2017: Annals of Work Exposures and Health
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