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https://www.readbyqxmd.com/read/28089118/occupational-lung-diseases-from-old-and-novel-exposures-to-effective-preventive-strategies
#1
REVIEW
Paul Cullinan, Xavier Muñoz, Hille Suojalehto, Raymond Agius, Surinder Jindal, Torben Sigsgaard, Anders Blomberg, Denis Charpin, Isabella Annesi-Maesano, Mridu Gulati, Yangho Kim, Arthur L Frank, Metin Akgün, David Fishwick, Rafael E de la Hoz, Subhabrata Moitra
Occupational exposure is an important, global cause of respiratory disease. Unlike many other non-communicable lung diseases, the proximal causes of many occupational lung diseases are well understood and they should be amenable to control with use of established and effective approaches. Therefore, the risks arising from exposure to silica and asbestos are well known, as are the means of their prevention. Although the incidence of occupational lung disease has decreased in many countries, in parts of the world undergoing rapid economic transition and population growth-often with large informal and unregulated workforces-occupational exposures continue to impose a heavy burden of disease...
January 6, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28079278/corporate-corruption-of-science-another-asbestos-example
#2
REVIEW
David Egilman, Rubén Monárrez
BACKGROUND: Kelsh et al. [2007]: Occup Med (Lond) 57:581-589 published a paper reanalyzing one of the few data sources publicly available on mesothelioma amongst brake workers, the Australian Mesothelioma Surveillance Registry (AMSR). This reanalysis was commissioned by lawyers representing the automobile manufacturing companies and did not align with an independent analysis published by Leigh and Driscoll [2003]: Occup Environ Health 9:206-217. METHODS: We sought to reevaluate the AMSR data ourselves to understand how the company-sponsored research categorized the data...
February 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28074111/absence-of-in-vivo-mutagenicity-of-multi-walled-carbon-nanotubes-in-single-intratracheal-instillation-study-using-f344-gpt-delta-rats
#3
Katsuyoshi Horibata, Akiko Ukai, Akio Ogata, Dai Nakae, Hiroshi Ando, Yoshikazu Kubo, Akemichi Nagasawa, Katsuhiro Yuzawa, Masamitsu Honma
INTRODUCTION: It is known that fibrous particles of micrometer length, such as carbon nanotubes, which have same dimensions as asbestos, are carcinogenic. Carcinogenicity of nanomaterials is strongly related to inflammatory reactions; however, the genotoxicity mechanism(s) is unclear. Indeed, inconsistent results on genotoxicity of multi-walled carbon nanotubes (MWCNTs) have been shown in several reports. Therefore, we analyzed the in vivo genotoxicity induced by an intratracheal instillation of straight MWCNTs in rats using a different test system-the Pig-a gene mutation assay-that can reflect the genotoxicity occurring in the bone marrow...
2017: Genes and Environment: the Official Journal of the Japanese Environmental Mutagen Society
https://www.readbyqxmd.com/read/28066892/asbestos-fibres-detected-by-scanning-electron-microscopy-in-the-gallbladder-of-patients-with-malignant-pleural-mesothelioma-mpm
#4
F Grosso, A Croce, N F Trincheri, N Mariani, R Libener, D Degiovanni, C Rinaudo
Gallbladders from patients affected by both malignant pleural mesothelioma (MPM) and important gallbladder disorders were analyzed to verify the presence of asbestos fibres. Histological thin sections were analyzed by optical microscope and variable pressure scanning electron microscopy coupled with energy dispersive spectroscopy, allowing morphological and chemical characterization of each inorganic phase observed. Fibres of chrysotile and crocidolite, minerals regulated as asbestos, were identified. By immunohistochemical analysis, connective tissue was recognized as the incorporation site...
January 9, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28066660/flex-rigid-pleuroscopic-biopsy-with-the-sb-knife-jr-is-a-novel-technique-for-diagnosis-of-malignant-or-benign-fibrothorax
#5
Xiao-Bo Wang, Yan Yin, Yuan Miao, Ralf Eberhardt, Gang Hou, Felix J Herth, Jian Kang
Diagnosing pleural effusion is challenging, especially in patients with malignant or benign fibrothorax, which is difficult to sample using standard flexible forceps (SFF) via flex-rigid pleuroscopy. An adequate sample is crucial for the differential diagnosis of malignant fibrothorax (malignant pleural mesothelioma, metastatic lung carcinoma, etc.) from benign fibrothorax (benign asbestos pleural disease, tuberculous pleuritis, etc.). Novel biopsy techniques are required in flex-rigid pleuroscopy to improve the sample size and quality...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28056339/asbestos-induced-mesothelial-to-fibroblastic-transition-is-modulated-by-the-inflammasome
#6
Joyce K Thompson, Maximilian B MacPherson, Stacie L Beuschel, Arti Shukla
Despite the causal relationship established between malignant mesothelioma (MM) and asbestos exposure, the exact mechanism by which asbestos induces this neoplasm and other asbestos-related diseases is still not well understood. MM is characterized by chronic inflammation, which is believed to play an intrinsic role in the origin of this disease. We recently found that asbestos activates the nod-like receptor family member containing a pyrin domain 3 (NLRP3) inflammasome in a protracted manner, leading to an up-regulation of IL-1β and IL-18 production in human mesothelial cells...
January 2, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28054314/turning-back-the-wheel-inducing-mesenchymal-to-epithelial-transition-via-wilms-tumor-1-knockdown-in-human-mesothelioma-cell-lines-to-influence-proliferation-invasiveness-and-chemotaxis
#7
Till Plönes, Mitja Fischer, Kerstin Höhne, Hiromi Sato, Joachim Müller-Quernheim, Gernot Zissel
Malignant pleural mesothelioma (MPM) is a highly aggressive tumor that arises from the surface of the pleura and is associated with a history of asbestos exposure. The tumor is characterized by a strong local invasiveness and a poor response to any single modality therapy. Therefore clinical outcome of patients with MPM is poor and median survival time of untreated patients with MPM is 7 months from initial diagnosis. The Wilms Tumor Protein 1 (WT1) is a transcription factor which is highly expressed by MPM and is involved in cellular development and survival...
January 4, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28051835/mesothelioma-and-interferon-%C3%AE-dependent-chemokine-ip-10
#8
P Fallahi, F Ragusa
Recently it has been shown that interferon (IFN)-γ plays an important role in mesothelioma, mediated by the main IFN-γ dependent chemokines, chemokine (C-X-C motif) ligand (CXCL)10/IFN-γ- induced protein 10 (IP-10). IP-10 is up-regulated in malignant mesothelioma (MM), suggesting a relationship with development of these tumors. Nanoparticles containing nickel, that increase the risk for pleural diseases, induced increased levels of IP-10 in rat pleural mesothelial cells. Chemokine (C-X-C motif) receptor (CXCR)3 expression in CD4(+) T cells from pleural plaques and MMs was significantly decreased compared with that from healthy donors suggesting that CXCR3, IFN-γ, and IP-10 may be candidates to detect and monitor disease status...
November 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28050426/pleural-mesothelioma-with-no-asbestos-exposure-a-case-report
#9
Salma Ait Batahar, Othmane Ouradi, Safae Elidrissi, Lamyae Amro
Malignant Pleural Mesothelioma (MPM) is the primary malignant tumour of the pleura. It is highly aggressive and linked to the exposure to asbestos fibers. The prognosis of this cancer is bad with a median of survival around 12 months. The diagnosis of pleural mesothelioma is often done at an advanced stage of the disease because of the lack of specific clinical and radiological signs differentiating it from any malignant pleural effusion. The absence of an explicit asbestos exposure is another diagnosis problem...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28045493/inhalation-and-oropharyngeal-aspiration-exposure-to-rod-like-carbon-nanotubes-induce-similar-airway-inflammation-and-biological-responses-in-mouse-lungs
#10
Pia Kinaret, Marit Ilves, Vittorio Fortino, Elina Rydman, Piia Karisola, Anna Lähde, Joonas Koivisto, Jorma Jokiniemi, Henrik Wolff, Kai Savolainen, Dario Greco, Harri Alenius
Carbon nanotubes (CNT) have the potential to great impact on technological and industrial progress, but their production and use may, in some cases, cause serious health problems. Certain rod-shaped multi-walled CNT (rCNT) can, in fact, induce severe asbestos-like pathogenicity in mice, including granuloma formation, fibrosis and even cancer. Evaluating the comparability between alternative hazard assessment methods is needed to ensure fast and reliable evaluation of the potentially adverse effects of these materials...
January 3, 2017: ACS Nano
https://www.readbyqxmd.com/read/28038458/chromosome-nondisjunction-during-bipolar-mitoses-of-binucleated-intermediates-promote-aneuploidy-formation-along-with-multipolar-mitoses-rather-than-chromosome-loss-in-micronuclei-induced-by-asbestos
#11
Tianwei Zhang, Lei Lv, Yun Huang, Xiaohui Ren, Qinghua Shi
Asbestos is a well-known occupational carcinogen that can cause aneuploidy during the early stages of neoplastic development. To explore the origins of asbestos-induced aneuploidy, we performed long-term live-cell imaging followed by fluorescence in situ hybridization of chromosomes 8 and 12 in human bronchial epithelial (HBEC) and mesothelial (MeT5A) cells. We demonstrate that asbestos induces aneuploidy via binucleated intermediates resulting from cytokinesis failure. On the one hand, asbestos increases chromosome nondisjunction during bipolar divisions of binucleated intermediates and produces near-tetraploidy...
December 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/28034829/bap1-is-altered-by-copy-number-loss-mutation-and-or-loss-of-protein-expression-in-more-than-70-malignant-peritoneal-mesotheliomas
#12
Noémie Leblay, Frédéric Leprêtre, Nolwenn Le Stang, Amandine Gautier-Stein, Laurent Villeneuve, Sylvie Isaac, Denis Maillet, Françoise Galateau-Sallé, Céline Villenet, Shéhérazade Sebda, Alexandra Goracci, Graham Byrnes, James D McKay, Martin Figeac, Olivier Glehen, François-Noël Gilly, Matthieu Foll, Lynnette Fernandez-Cuesta, Marie Brevet
INTRODUCTION: Malignant mesothelioma is a deadly disease strongly associated with asbestos exposure. Peritoneal mesotheliomas account for 10% of all the cases. BAP1 is a deubiquitinating hydrolase that plays a key role in various cellular processes. Germ-line and somatic inactivation of BAP1 is frequent in pleural mesothelioma, however, little is known about its status in peritoneal mesothelioma. METHODS: Taking advantage of the extensive French national networks MESOPATH and RENAPE, we collected biological material and clinical and epidemiological data for 46 peritoneal mesothelioma patients...
December 27, 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28026144/deciduoid-mesothelioma-of-the-thorax-a-comprehensive-review-of-the-scientific-literature
#13
REVIEW
Panagiotis Paliogiannis, Carlo Putzu, Giorgio Carlo Ginesu, Maria Laura Cossu, Claudio Francesco Feo, Federico Attene, Fabrizio Scognamillo, Rita Nonnis, Antonio Cossu, Giuseppe Palmieri, Pietro Pirina, Alessandro Fois
OBJECTIVE: Deciduoid mesothelioma is a rare variant of malignant epithelioid mesothelioma. It often involves the peritoneum, but also thoracic cases have been reported. The aim of the present review is to describe the demographic, clinical, radiological, and pathological features of such a rare variant of thoracic mesothelioma, and the state of the art regarding the therapeutic approaches currently available. DATA SOURCE: English-language articles published from 1985 to June 2016, and related to thoracic deciduoid mesothelioma cases were retrieved using the Pubmed database...
December 27, 2016: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28025765/incidence-of-malignant-mesothelioma-in-germany-2009-2013
#14
Martin Lehnert, Klaus Kraywinkel, Evelyn Heinze, Thorsten Wiethege, Georg Johnen, Julia Fiebig, Thomas Brüning, Dirk Taeger
PURPOSE: The malignant mesothelioma is a rare malignancy and mainly caused by occupational exposure to asbestos. German cancer registries are providing a national database to investigate temporal and regional patterns of mesothelioma incidence. These may be of interest for healthcare planning and for surveillance programs aiming at the formerly exposed workforce. METHODS: We analyzed population-based incidence data of malignant mesothelioma by site, type, sex, age, as well as district and state of patient's residence...
December 27, 2016: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28013367/actin-polymerization-plays-a-significant-role-in-asbestos-induced-inflammasome-activation-in-mesothelial-cells-in-vitro
#15
Maximilian MacPherson, Catherine Westbom, Helen Kogan, Arti Shukla
Asbestos exposure leads to malignant mesothelioma (MM), a deadly neoplasm of mesothelial cells of various locations. Although there is no doubt about the role of asbestos in MM tumorigenesis, mechanisms are still not well explored. Recently, our group demonstrated that asbestos causes inflammasome priming and activation in mesothelial cells, which in part is dependent on oxidative stress. Our current study sheds light on yet another mechanism of inflammasome activation by asbestos. Here we show the role of actin polymerization in asbestos-induced activation of the nod-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome...
December 24, 2016: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28013144/effect-of-temperature-on-beam-damage-of-asbestos-fibers-in-the-transmission-electron-microscope-tem-at-100kv
#16
Joannie Martin, Martin Beauparlant, Sébastien Sauvé, Gilles L'Espérance
Damage to asbestos fibers by the transmission electron microscope (TEM) electron beam is a known limitation of this powerful method of analysis. Although it is often considered only in terms of loss of crystallinity, recent studies have shown that the damage may also change the elemental composition of fibers, thus causing significant identification errors. In this study, the main objective was to assess whether temperature is a factor influencing damage to asbestos fibers and, if so, how it can be used to minimize damage...
November 24, 2016: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28007630/improving-the-accuracy-of-mesothelioma-diagnosis-in-china
#17
Zhenying Guo, Michele Carbone, Xing Zhang, Dan Su, Wenyong Sun, Jianlin Lou, Zhibin Gao, Dichu Shao, Junqiang Chen, Gu Zhang, Jinlin Hu, Kaiyan Chen, Fang Wang, Harvey I Pass, Herbert Yu, Andrea Napolitano, Haining Yang, Weiming Mao
BACKGROUND: In the Western World malignant mesothelioma (MM) is most prevalent in the pleura of older males professionally exposed to asbestos. Information about MM from rapidly industrializing countries, such as China, is minimal. There is concern that a proportion of MM diagnoses in China may be incorrect because most Chinese physicians do not have experience diagnosing this rare cancer. We recently reported an unusual high incidence of peritoneal MM among Eastern Chinese female patients...
December 19, 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28007619/malignant-mesothelioma-biomarkers-from-discovery-to-use-in-clinical-practise-for-diagnosis-monitoring-screening-and-treatment
#18
REVIEW
Jenette Creaney, Bruce W S Robinson
Malignant pleural mesothelioma is a highly aggressive tumour associated with asbestos exposure. There are few effective treatment options for mesothelioma and patients have a very poor prognosis with a median survival of less than 12 months from diagnosis. Biomarkers have been proposed as a cost-effective means of cancer management and the search for a mesothelioma biomarker has been on-going for the past thirty years. Many traditional soluble (glyco)-protein biomarkers have been evaluated over this time and an ever increasing list of new biomarkers, including mRNA, DNA, miRNA and antibodies, are being reported from biomarker discovery projects...
December 19, 2016: Chest
https://www.readbyqxmd.com/read/28002541/distinction-between-mesothelioma-and-lung-adenocarcinoma-based-on-immunohistochemistry-in-a-patient-with-asbestos-bodies-in-bronchoalveolar-fluid-case-report
#19
Agripina Raşcu, Eugenia Naghi, Marina Ruxandra OŢelea, Floarea Mimi NiŢu, Oana Cristina Arghir
Asbestos is a mineral-mined form the rocks, consisting in amosite (brown asbestos), crocidolite (blue asbestos) and÷or chrysotile (white asbestos) used in many industries. Researches about the exposure to asbestos dust and asbestosis related diseases started almost a century ago. The first case report of fatal asbestosis disease was published in 1906, in England, by Dr. Hubert Montague Murray. A decade after, asbestos "curious bodies" were firstly described in the lung tissue by Cooke (1926) and McDonald (1927)...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27993826/minimal-change-disease-associated-with-malignant-pleural-mesothelioma-case-report-and-review-of-the-literature
#20
Halil Yildiz, Stoian Ioana Andreea, Delphine Hoton, Jean Cyr Yombi
A 77-year-old man with a history of asbestos exposure was admitted to our internal medicine division for generalised weakness, fatigue, loss of weight, night sweats and difficulty for breathing since 3 months. Clinical examination revealed left fine crackles and bilateral leg oedema. Blood test showed elevated C reactive protein level at 142 mg/L, lactate dehydrogenase level at 421 UI, creatinine level at 5.75 mg/dL. Serum albumin level at 30 g/L, urinalysis showed significant proteinuria at 6.4 g/L...
December 19, 2016: BMJ Case Reports
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