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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
#1
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
#2
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...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425640/profiling-of-the-silica-induced-molecular-events-in-lung-epithelial-cells-using-the-rna-seq-approach
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/28350071/protective-effects-of-oleanolic-acid-on-oxidative-stress-and-the-expression-of-cytokines-and-collagen-by-the-akt-nf%C3%A2-%C3%AE%C2%BAb-pathway-in-silicotic-rats
#15
Hai-Bing Peng, Rui-Xun Wang, Hai-Jing Deng, Yong-Heng Wang, Jun-Dong Tang, Fu-Yuan Cao, Jian-Hui Wang
Oleanolic acid (OA), a natural pentacyclic triterpenoid, has been reported to have several benefits and medicinal properties. However, its protective effects against silica‑induced lung injury and fibrosis remain to be elucidated. The aim of the present study was to investigate the effects of OA on oxidative stress, and the expression of cytokines and collagen in silicotic rats. Male rats were induced by intratracheal instillation of silicosis (250 mg/kg), with the exception of the control group (NS). The rats in the OA group were intragastrically administered with OA (60 mg/kg/d)...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28341862/follistatin-like-1-aggravates-silica-induced-mouse-lung-injury
#16
Yinshan Fang, Si Zhang, Xiaohe Li, Fangxin Jiang, Qiao Ye, Wen Ning
Occupational inhalation of dust, such as crystalline silica, for prolonged periods in the workplace leads to fibrotic lung diseases worldwide. The mechanisms underlying the diseases are unknown, so that no effective treatment exists for these conditions. We found elevated levels of follistatin like 1 (FSTL1) in serum from patients with silicosis and in lungs from silica-induced mouse model. The induced Fstl1 regulated inflammation response via activation of nod-like receptor family, pyrin domain containing 3v (NLRP3) inflammasome-mediated IL-1β production from macrophages...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28339287/rapid-radiologic-progression-of-silicosis
#17
Kazuo Tsuchiya, Mikio Toyoshima, Norimichi Akiyama, Masato Kono, Yutaro Nakamura, Kazuhito Funai, Satoshi Baba, Haruhiko Sugimura, Hitomi Kanayama, Takafumi Suda
No abstract text is available yet for this article.
March 24, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28317464/molecular-mechanisms-of-pulmonary-response-progression-in-crystalline-silica-exposed-rats
#18
Rajendran Sellamuthu, Christina Umbright, Jenny R Roberts, Shih-Houng Young, Diana Richardson, Walter McKinney, Bean T Chen, Shengqiao Li, Michael Kashon, Pius Joseph
An understanding of the mechanisms underlying diseases is critical for their prevention. Excessive exposure to crystalline silica is a risk factor for silicosis, a potentially fatal pulmonary disease. Male Fischer 344 rats were exposed by inhalation to crystalline silica (15 mg/m(3), six hours/day, five days) and pulmonary response was determined at 44 weeks following termination of silica exposure. Additionally, global gene expression profiling in lungs and BAL cells and bioinformatic analysis of the gene expression data were done to understand the molecular mechanisms underlying the progression of pulmonary response to silica...
March 19, 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/28300665/grape-seed-extract-ameliorates-bleomycin-induced-mouse-pulmonary-fibrosis
#19
Qi Liu, Jun-Xia Jiang, Ya-Nan Liu, Ling-Tian Ge, Yan Guan, Wei Zhao, Yong-Liang Jia, Xin-Wei Dong, Yun Sun, Qiang-Min Xie
Pulmonary fibrosis is common in a variety of inflammatory lung diseases, such as interstitial pneumonia, chronic obstructive pulmonary disease, and silicosis. There is currently no effective clinical drug treatment. It has been reported that grape seed extracts (GSE) has extensive pharmacological effects with minimal toxicity. Although it has been found that GSE can improve the lung collagen deposition and fibrosis pathology induced by bleomycin in rat, its effects on pulmonary function, inflammation, growth factors, matrix metalloproteinases and epithelial-mesenchymal transition remain to be researched...
March 12, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28299449/contribution-of-job-exposure-matrices-for-exposure-assessment-in-occupational-safety-and-health-monitoring-systems-application-from-the-french-national-occupational-disease-surveillance-and-prevention-network
#20
Arnaud Florentin, Denis Zmirou-Navier, Christophe Paris
OBJECTIVES: To detect new hazards ("signals"), occupational health monitoring systems mostly rest on the description of exposures in the jobs held and on reports by medical doctors; these are subject to declarative bias. Our study aims to assess whether job-exposure matrices (JEMs) could be useful tools for signal detection by improving exposure reporting. METHODS: Using the French national occupational disease surveillance and prevention network (RNV3P) data from 2001 to 2011, we explored the associations between disease and exposure prevalence for 3 well-known pathology/exposure couples and for one debatable couple...
March 16, 2017: International Archives of Occupational and Environmental Health
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