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https://www.readbyqxmd.com/read/28805487/state-of-the-art-nanopathological-diagnostics
#1
Luca Roncati, Giuseppe Barbolini
The nanopathological diagnostics (ND) is an ultra-specialized branch of pathological anatomy aimed to identify the nanoparticles of metallic, semimetallic, or nonmetallic elements in the inorganic particulate matter present inside pathological tissues, even on the nanometer scale. ND exploits an environmental scanning electron microscope, connected to an X-ray microprobe mounted on an energy-dispersive spectrometer. The searching of nanoparticles can be performed on paraffin-embedded material, omitting emissions of black overlay and plating procedures...
August 14, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28802207/the-effect-of-aluminium-and-sodium-impurities-on-the-in-vitro-toxicity-and-pro-inflammatory-potential-of-cristobalite
#2
C Nattrass, C J Horwell, D E Damby, D Brown, V Stone
BACKGROUND: Exposure to crystalline silica (SiO2), in the form of quartz, tridymite or cristobalite, can cause respiratory diseases, such as silicosis. However, the observed toxicity and pathogenicity of crystalline silica is highly variable. This has been attributed to a number of inherent and external factors, including the presence of impurities. In cristobalite-rich dusts, substitutions of aluminium (Al) for silicon (Si) in the cristobalite structure, and impurities occluding the silica surface, have been hypothesised to decrease its toxicity...
August 9, 2017: Environmental Research
https://www.readbyqxmd.com/read/28794637/the-role-of-mediastinoscopy-in-the-diagnosis-of-non-lung-cancer-diseases
#3
Serdar Onat, Gungor Ates, Alper Avcı, Tekin Yıldız, Ali Birak, Cihan Akgul Ozmen, Refik Ulku
BACKGROUND: Mediastinoscopy is a good method to evaluate mediastinal lesions. We sought to determine the current role of mediastinoscopy in the investigation of non-lung cancer patients with mediastinal lymphadenopathy. MATERIALS AND METHODS: We retrospectively reviewed clinical parameters (age, gender, histological diagnosis, morbidity, mortality) of all patients without lung cancer who consecutively underwent mediastinoscopy in Hospital of Faculty of Medicine of Dicle University between June 2003 and December 2016...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28780804/-the-clinical-ananysis-of-10-cases-of-accelerated-silicosis
#4
Y Li, G M Luo, X H Zhang
No abstract text is available yet for this article.
May 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28774280/public-health-implications-of-changing-patterns-of-recruitment-into-the-south-african-mining-industry-1973-2012-a-database-analysis
#5
Rodney Ehrlich, Alex Montgomery, Paula Akugizibwe, Gregg Gonsalves
BACKGROUND: The triple epidemic of silicosis, tuberculosis and HIV infection among migrant miners from South Africa and neighbouring countries who have worked in the South African mining industry is currently the target of regional and international control efforts. These initiatives are hampered by a lack of information on this population. METHODS: This study analysed the major South African mining recruitment database for the period 1973 to 2012 by calendar intervals and demographic and occupational characteristics...
August 3, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28727677/surveillance-for-silicosis-deaths-among-persons-aged-15-44-years-united-states-1999-2015
#6
Jacek M Mazurek, John M Wood, Patricia L Schleiff, David N Weissman
Silicosis is usually a disease of long latency affecting mostly older workers; therefore, silicosis deaths in young adults (aged 15-44 years) suggests acute or accelerated disease.* To understand the circumstances surrounding silicosis deaths among young persons, CDC analyzed the underlying and contributing causes(†) of death using multiple cause-of-death data (1999-2015) and industry and occupation information abstracted from death certificates (1999-2013). During 1999-2015, among 55 pneumoconiosis deaths of young adults with International Classification of Diseases, Tenth Revision (ICD-10) code J62 (pneumoconiosis due to dust containing silica),(§) 38 (69%) had code J62...
July 21, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28660869/a-reliability-and-readability-analysis-of-silicosis-related-italian-websites-implications-for-occupational-health
#7
Guglielmo Dini, Nicola Luigi Bragazzi, Beatrice D'Amico, Alfredo Montecucco, Stanley C Igwe, Francesco Brigo, Alessandra Toletone, Paolo Durando
BACKGROUND: Silicosis represents a "classical" occupational disease characterized by a renewed interest. New risk factors are emerging, such as sandblasting in the jeans industry or hydrofracking, leading to clusters of acute or massive cases. OBJECTIVES: Given that the Internet could represent a worker education and empowerment tool, and considering the increase in popularity of silicosis-related information, we aimed at systematically analyzing the reliability and readability of online silicosis-relevant information...
June 28, 2017: La Medicina del Lavoro
https://www.readbyqxmd.com/read/28622458/bullous-pemphigoid-associated-with-silicosis
#8
T Zhu, D L Ma, Y P Zeng, L Song, L Li
An 87-year-old man presented with multiple erythemas accompanied by itching on bilateral axillae, groins and buttocks for 3 months, which aggravated with blisters and bullae for 1 month. The physical examination revealed multiple tense blisters and bullae with erosions and light yellow effusion (Fig. 1a). The histopathological examination of the tissue biopsy showed a subepidermal blister with little inflammatory infiltrate (Fig. 1b). This article is protected by copyright. All rights reserved.
June 16, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28617149/comparison-of-airway-deposition-distributions-of-particles-in-healthy-and-diseased-workers-in-an-egyptian-industrial-site
#9
Péter Füri, Werner Hofmann, Ágnes Jókay, Imre Balásházy, Mona Moustafa, Blanka Czitrovszky, Gábor Kudela, Árpád Farkas
The objective of this study is the prediction and comparison of airway deposition patterns of an industrial aerosol in healthy workers and workers suffering from silicosis. Mass concentrations and related size distributions of particulate matter were measured in the industrial area of Samalut in Minia, Egypt. A novel stochastic lung deposition model, simulating the symptoms of silicosis by chronic bronchial (Br) obstruction and emphysema in the acinar (Ac) region, was applied to compute mass deposition fractions, deposition density, deposition rate and deposition density rate distributions in healthy and diseased workers...
June 15, 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/28614934/-evaluation-of-clinical-efficacy-of-tretrandrine-combined-with-acetylcysteine-effervescent-tablets-in-the-treatment-of-silicosis
#10
J X Ning, L P Zhang, Y Cui
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/28587321/clinical-evaluation-of-cenp-b-and-scl-70-autoantibodies-in-silicosis-patients
#11
Suni Lee, Hiroaki Hayashi, Naoko Kumagai-Takei, Hidenori Matsuzaki, Kei Yoshitome, Yasumitsu Nishimura, Kozo Uragami, Masayasu Kusaka, Shoko Yamamoto, Miho Ikeda, Tamayo Hatayama, Wataru Fujimoto, Takemi Otsuki
Silicosis patients (SIL) suffer from respiratory disorders and dysregulation of autoimmunity. Frequent complications such as rheumatoid arthritis, systemic sclerosis (SSc) and vasculitis are known in SIL. Furthermore, we reported previously that some SIL exhibited better respiratory conditions in association with a worse immunological status. In this study, the clinical roles of anti-CENP-B and Scl-70 autoantibodies in SIL were analyzed. The titer index (Log10) of anti-CENP-B autoantibody in SIL was higher than that of healthy volunteers (HV), and that of SSc was higher than those of HV and SIL...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28524802/effects-of-occupational-silica-exposure-on-oxidative-stress-and-immune-system-parameters-in-ceramic-workers-in-turkey
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
Stefan Mielke, Dirk Taeger, Kerstin Weitmann, Thomas Brüning, Wolfgang Hoffmann
Inhaled crystalline quartz is a carcinogen. Analyses show differences in the distribution of lung cancer types depending on the status of silicosis. Using 2,524 lung tumor cases from the WISMUT autopsy repository database, silicosis was differentiated into 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 carcinoma, and small-cell lung carcinoma 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
#19
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
#20
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
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