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https://www.readbyqxmd.com/read/28431523/the-utility-of-electron-microscopy-in-detecting-asbestos-fibers-and-particles-in-balf-in-diffuse-lung-diseases
#1
Takashi Kido, Yasuo Morimoto, Kazuhiro Yatera, Hiroshi Ishimoto, Takaaki Ogoshi, Keishi Oda, Kei Yamasaki, Toshinori Kawanami, Shohei Shimajiri, Hiroshi Mukae
BACKGROUND: In patients with diffuse lung diseases, differentiating occupational lung diseases from other diseases is clinically important. However, the value of assessing asbestos and particles in bronchoalveolar lavage fluid (BALF) in diffuse lung diseases by electron microscopy (EM) remains unclear. We evaluated the utility of EM in detecting asbestos fibers and particles in patients with diffuse lung diseases. METHODS: The BALF specimens of 107 patients with diffuse lung diseases were evaluated...
April 21, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28428174/klotho-an-anti-aging-molecule-attenuates-oxidant-induced-alveolar-epithelial-cell-mtdna-damage-and-apoptosis
#2
Seok-Jo Kim, Paul Cheresh, Mesut Eren, Renea P Jablonski, Anjana Yeldandi, Karen M Ridge, Gr Scott Budinger, Dong-Hyun Kim, Myles S Wolf, Douglas Vaughan, David W Kamp
Alveolar epithelial cell (AEC) apoptosis and inadequate repair resulting from 'exaggerated' lung aging and mitochondrial dysfunction are critical determinants promoting lung fibrosis. α-Klotho, which is an anti-aging molecule that is expressed predominantly in the kidney and secreted in the blood, can protect lung epithelial cells against hyperoxia-induced apoptosis. We reasoned that Klotho protects AEC exposed to oxidative stress in part by maintaining mitochondrial DNA (mtDNA) integrity and mitigating apoptosis...
April 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28427171/evaluation-of-intracavitary-administration-of-curcumin-for-the-treatment-of-sarcomatoid-mesothelioma
#3
Daniel L Pouliquen, Béatrice Nawrocki-Raby, Joëlle Nader, Stéphanie Blandin, Myriam Robard, Philippe Birembaut, Marc Grégoire
A rat model of sarcomatoid mesothelioma, mimicking some of the worst clinical conditions encountered, was established to evaluate the therapeutic potential of intracavitary curcumin administration.The M5-T1 cell line, selected from a collection established from F344 rats induced with asbestos, produces tumors within three weeks, with extended metastasis in normal tissues, after intraperitoneal inoculation in syngeneic rats. The optimal concentration/time conditions for killing M5-T1 cells with curcumin were first determined in vitro...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412495/epidemiology-of-environmental-exposure-and-malignant-mesothelioma
#4
REVIEW
Liu Bian, Maaike van Gerwen, Stefano Bonassi, Emanuela Taioli
While the association between exposure to asbestos and malignant mesothelioma (MM), particularly malignant pleural mesothelioma (MPM) has been well established, the health impact of environmental exposure (EE) to asbestos is less studied. This review summarizes the most recent studies on the association between MM and EE to asbestos, in order to identify features associated with EE, and quantify the association with MPM. There were 44 studies from eighteen countries that met our selection criteria, with considerable amount of heterogeneity in study design, the measures for exposure, and health outcomes...
April 12, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28409857/asbestos-asbestosis-and-cancer-the-helsinki-criteria-for-diagnosis-and-attribution-critical-need-for-revision-of-the-2014-update
#5
Xaver Baur, Hans-Joachim Woitowitz, Lygia T Budnik, David Egilman, Christine Oliver, Arthur Frank, Colin L Soskolne, Philip J Landrigan, Richard A Lemen
No abstract text is available yet for this article.
May 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28409856/pleural-malignant-mesothelioma-in-dental-laboratory-technicians-a-case-series
#6
Carolina Mensi, Francesco Ciullo, Gino Pietro Barbieri, Luciano Riboldi, Anna Somigliana, Giulio Rasperini, Angela Cecilia Pesatori, Dario Consonni
Asbestos was used in dentistry as a binder in periodontal dressings and as lining material for casting rings and crucible. However, until now, only one case of malignant mesothelioma with occupational exposure to asbestos in dental practice has been reported. We present 4 pleural mesotheliomas out of 5344 cases identified in Lombardy, Italy, in 2000-2014. Three men had been working as dental laboratory technicians, with asbestos exposure for 10, 34, and 4 years, and one woman had been helping her husband for 30 years in manufacturing dental prostheses...
May 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28399779/malignant-pleural-mesothelioma-single-institution-experience-of-101-patients-over-a-15-year-period
#7
Andreas Domen, Christophe De Laet, Wies Vanderbruggen, Jan Gielis, Jeroen M H Hendriks, Patrick Lauwers, Annelies Janssens, Birgitta Hiddinga, Jan P Van Meerbeeck, Paul E Van Schil
BACKGROUND: Malignant pleural mesothelioma (MPM) is a rare but aggressive neoplasm that typically originates from the mesothelial surfaces of the pleural cavity. Exposure to asbestos is the principal etiological agent of MPM. The disease is characterized by difficult stage classification and limited consensus on therapeutic approach. We have evaluated the experience with MPM in the Antwerp University Hospital over the past 15 years. METHODS: A database was created with all patients diagnosed with or treated for a MPM between 2001 and 2015...
June 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28399257/asbestos-exposure-still-poses-occupational-health-risks
#8
(no author information available yet)
No abstract text is available yet for this article.
April 11, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28395351/confidence-intervals-for-asbestos-fiber-counts-approximate-negative-binomial-distribution
#9
David Bartley, James Slaven, Martin Harper
The negative binomial distribution is adopted for analyzing asbestos fiber counts so as to account for both the sampling errors in capturing only a finite number of fibers and the inevitable human variation in identifying and counting sampled fibers. A simple approximation to this distribution is developed for the derivation of quantiles and approximate confidence limits. The success of the approximation depends critically on the use of Stirling's expansion to sufficient order, on exact normalization of the approximating distribution, on reasonable perturbation of quantities from the normal distribution, and on accurately approximating sums by inverse-trapezoidal integration...
March 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28395242/analysis-of-fibulin-3-after-exposure-to-asbestos-like-fibers
#10
Venerando Rapisarda, Rosario Caltabiano, Giuseppe Musumeci, Paola Castrogiovanni, Margherita Ferrante, Caterina Ledda, Claudia Lombardo, Adriana Carol Eleonora Graziano, Venera Cardile, Carla Loreto
A significantly increased incidence of malignant mesothelioma in Biancavilla (Sicily, Italy) has been ascribed to exposure to fluoro-edenite, a fibrous amphibole extracted from a local stone quarry. Fibulin-3 is a highly conserved glycoprotein proposed as a biomarker for malignant mesothelioma that belongs to the family of extracellular matrix proteins. Previous studies demonstrated high Fibulin-3 plasma levels in workers with pleural plaques exposed to fluoro-edenite. Therefore, in order to gain insight into the biomolecular mechanisms of fluoro-edenite toxicity, we performed the analysis of Fibulin-3 expression by immunohistochemistry in the lung samples derived from sheep belonging to the area of Biancavilla...
April 7, 2017: Environmental Research
https://www.readbyqxmd.com/read/28384615/airborne-asbestos-fibres-monitoring-in-tunnel-excavation
#11
Laura Gaggero, Elisa Sanguineti, Adrián Yus González, Gaia Maria Militello, Alberto Scuderi, Giovanni Parisi
Tunnelling across ophiolitic formation with Naturally Occurring Asbestos (NOA) can release fibres into the environment, exposing workers, and the population, if fibres spread outside the tunnel, leading to increased risk of developing asbestos-related disease. Therefore, a careful plan of environmental monitoring is carried out during Terzo Valico tunnel excavation. In the present study, data of 1571 samples of airborne dust, collected between 2014 and 2016 inside the tunnels, and analyzed by SEM-EDS for quantification of workers exposure, are discussed...
April 3, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28377727/transcriptomic-analysis-of-the-claudin-interactome-in-malignant-pleural-mesothelioma-evaluation-of-the-effect-of-disease-phenotype-asbestos-exposure-and-cdkn2a-deletion-status
#12
Erasmia Rouka, Georgios D Vavougios, Evgeniy I Solenov, Konstantinos I Gourgoulianis, Chrissi Hatzoglou, Sotirios G Zarogiannis
Malignant pleural mesothelioma (MPM) is a highly aggressive tumor primarily associated with asbestos exposure. Early detection of MPM is restricted by the long latency period until clinical presentation, the ineffectiveness of imaging techniques in early stage detection and the lack of non-invasive biomarkers with high sensitivity and specificity. In this study we used transcriptome data mining in order to determine which CLAUDIN (CLDN) genes are differentially expressed in MPM as compared to controls. Using the same approach we identified the interactome of the differentially expressed CLDN genes and assessed their expression profile...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28372852/optimal-management-program-for-asbestos-containing-building-materials-to-be-available-in-the-event-of-a-disaster
#13
Young-Chan Kim, Won-Hwa Hong
The safe management and disposal of asbestos is a matter of considerable importance. A large number of studies have been undertaken to quantify the issue of waste management following a disaster. Nevertheless, there have been few (if any) studies concerning asbestos waste, covering the amount generated, the cost of disposal, and the degree of hazard incurred. Thus, the current study focuses on developing a program for the management of Asbestos Containing Building Materials (ACBMs), which form the source of asbestos waste in the event of a disaster...
March 31, 2017: Waste Management
https://www.readbyqxmd.com/read/28370144/lung-function-not-affected-by-asbestos-exposure-in-workers-with-normal-computed-tomography-scan
#14
Christian Schikowsky, Michael K Felten, Christian Eisenhawer, Marco Das, Thomas Kraus
BACKGROUND: It has been suggested that asbestos exposure affects lung function, even in the absence of asbestos-related pulmonary interstitial or pleural changes or emphysema. METHODS: We analyzed associations between well-known asbestos-related risk factors, such as individual cumulative asbestos exposure, and key lung function parameters in formerly asbestos-exposed power industry workers (N = 207) with normal CT scans. For this, we excluded participants with emphysema, fibrosis, pleural changes, or any combination of these...
March 30, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28351840/macrophages-utilize-the-mitochondrial-calcium-uniporter-for-profibrotic-polarization
#15
Linlin Gu, Jennifer L Larson-Casey, A Brent Carter
Fibrosis in multiple organs, including the liver, kidney, and lung, often occurs secondary to environmental exposure. Asbestos exposure is one important environmental cause of lung fibrosis. The mechanisms that mediate fibrosis is not fully understood, although mitochondrial oxidative stress in alveolar macrophages is critical for fibrosis development. Mitochondrial Ca(2+) levels can be associated with production of reactive oxygen species. Here, we show that patients with asbestosis have higher levels of mitochondrial Ca(2+) compared with normal patients...
March 28, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28351431/a-second-case-of-pericardial-mesothelioma-mimicking-systemic-lupus-erythematosus-in-the-literature-in-over-30-years-a-case-report
#16
Carolina Mensi, Alessandro Romano, Alvise Berti, Roberto Dore, Luciano Riboldi
BACKGROUND: Mesothelioma is a rare neoplasm which commonly develops in the pleura of people exposed to asbestos. Pericardial mesothelioma accounts for only 0.7 % of all malignant mesotheliomas and it usually presents with pericardial effusion, mimicking serositis. To date, there are approximately 200 cases of pericardial mesothelioma described in the medical literature, and little knowledge exists about the systemic manifestations of this pathology. The first and only described case of pericardial mesothelioma with autoimmune features dates back to 1984 and, in our case report, we describe the second...
March 29, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28350109/pathway-deviation-based-biomarker-and-multi-effect-target-identification-in-asbestos-related-squamous-cell-carcinoma-of-the-lung
#17
Jiang Du, Lin Zhang
Asbestos-related lung carcinoma is one of the most devastating occupational cancers, and effective techniques for early diagnosis are still lacking. In the present study, a systematic approach was applied to detect a potential biomarker for asbestos-related lung cancer (ARLC); in particular asbestos-related squamous cell carcinoma (ARLC-SCC). Microarray data (GSE23822) were retrieved from the Gene Expression Omnibus database, including 26 ARLC-SCCs and 30 non-asbestos-related squamous cell lung carcinomas (NARLC-SCCs)...
February 6, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28348451/serum-hmgb1-as-a-potential-biomarker-for-patients-with-asbestos-related-diseases
#18
Shibo Ying, Zhaoqiang Jiang, Xianglei He, Min Yu, Riping Chen, Junqiang Chen, Guoqing Ru, Yuan Chen, Wanyuan Chen, Lijin Zhu, Tao Li, Yixiao Zhang, Xinnian Guo, Xianhong Yin, Xing Zhang, Jianlin Lou
High-mobility group box 1 (HMGB1) functions as a proinflammatory cytokine and is one of the most intriguing molecules in inflammatory disorders and cancers. Notably, HMGB1 is a potential therapeutic target and novel biomarker in related diseases. However, the diagnostic value of HMGB1 for benign and malignant asbestos-related diseases (ARDs) remains unclear. In this work, we detected preoperative serum HMGB1 levels in Chinese asbestos-exposed (AE) and ARDs populations and further evaluated the diagnostic value of HMGB1 in patients with certain types of ARDs, including those with pleural plaques, asbestosis, or malignant mesothelioma (MM)...
2017: Disease Markers
https://www.readbyqxmd.com/read/28348450/a-novel-panel-of-serum-biomarkers-for-mpm-diagnosis
#19
A Bonotti, R Foddis, S Landi, O Melaiu, C De Santi, L Giusti, E Donadio, F Ciregia, M R Mazzoni, A Lucacchini, M Bovenzi, M Comar, E Pantani, A Pistelli, A Cristaudo
Exposure to asbestos is the main cause of malignant pleural mesothelioma (MPM), a highly aggressive cancer of the pleura. Since the only tools for early detection are based on radiological tests, some authors focused on serum markers (i.e., mesothelin). The aim of this study was the evaluation of new serum biomarkers to be used individually or in combination, in order to improve the outcome of patients whose disease would be diagnosed at an earlier stage. Serum and plasma were available from 43 subjects previously exposed to asbestos and 27 MPM patients, all being epithelioid type...
2017: Disease Markers
https://www.readbyqxmd.com/read/28345684/-analysis-of-changes-in-radiographic-lung-image-and-lung-ventilation-disorders-in-workers-occupationally-exposed-to-chrysotile-in-the-past
#20
Elżbieta Cwynar, Beata Świątkowska, Jarosław Tomczyk
BACKGROUND: The adverse health effects of occupational exposure to asbestos dust may occur several years after first exposure. The objective of the study was to assess the relationship between lesions in the respiratory system and the factors contributing to occupational exposure to asbestos described in the first medical examination as well as to analyze the factors responsible for the progression of these changes in further medical tests. MATERIAL AND METHODS: The study group comprised 591 former workers of asbestos processing plant "Gambit" in Lubawka...
March 24, 2017: Medycyna Pracy
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