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Valentina Paolucci, Riccardo Romeo, Antonietta Gerardina Sisinni, Giuseppina Scancarello, Luca Volterrani, Maria Antonietta Mazzei, Lucio Barabesi, Pietro Sartorelli
Health surveillance of asbestos exposed workers should be stratified according to the exposure level. Unfortunately there is a lack of information regarding asbestos exposure in many working places and markers of asbestos exposure are often needed. The aim of the study was to assess the reliability of different dose and effect biomarkers in the follow up of asbestos-exposed workers.Mineralogical analysis of bronchoalveolar lavage fluid (BALF) as a biomarker of asbestos fibre burden was performed in a population of 307 male subjects occupationally exposed to asbestos...
February 26, 2018: Industrial Health
Yoshinori Kawabata, Takahiko Kasai, Yoichiro Kobashi, Kunimitsu Kawahara, Toshimasa Uekusa, Kazuyoshi Kurashima, Yoshihiko Shimizu
AIM: To confirm whether or not grade 4 asbestosis progresses from the respiratory bronchiole to the peripheral lung. METHODS AND RESULTS: We retrospectively examined the autopsy or lobectomy specimens from 31 cases (29 males; mean age 64 years) satisfying the pathological criteria of grade 4 asbestosis. Asbestos bodies (ABs) were quantified in samples of dissolved lung and in tissue preparations on glass slides. Respiratory bronchiolar lesions were graded as 0, 1, and ≥ grade 2...
February 21, 2018: Histopathology
Andrea Farioli, Francesco S Violante, Carlo La Vecchia, Eva Negri, Claudio Pelucchi, Giovanna Spatari, Paolo Boffetta, Enrico Pira
OBJECTIVE: The aim of the study was to assess the risk of asbestosis death based on the temporal pattern of exposure to asbestos. METHODS: We followed up a cohort of asbestos textile workers, employed in 1946 to 1984, until November 2013. We measured the duration of the employment, the time since last employment (TSLE), the age, and the year of first employment. Hazard ratios (HR) were estimated through multivariable Cox regression models. RESULTS: We observed 51 asbestosis deaths among 1823 workers...
January 12, 2018: Journal of Occupational and Environmental Medicine
Eduardo Solbes, Richart W Harper
Asbestos comprises a group of fibrous minerals that are naturally occurring in the environment. Because of its natural properties, asbestos gained popularity for commercial applications in the late 19th century and was used throughout the majority of the 20th century, with predominant use in the construction, automotive, and shipbuilding industries. Asbestos has been linked to a spectrum of pulmonary diseases, such as pleural fibrosis and plaques, asbestosis, benign asbestos pleural effusion, small cell lung carcinoma, non-small cell lung carcinoma, and malignant mesothelioma...
January 6, 2018: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
Hyun Gyung Kim, Sang Hoon Kim, Taek-Seung Kim, Tae Won Park, Ran Won, Hee-Deung Park, Soo An Choi, Yong Woo Jung
Carbon nanotubes (CNTs) are nanomaterials that have been employed in generating diverse materials. We previously reported that CNTs induce cell death in macrophages, possibly via asbestosis. Therefore, we generated CNT-attached polyvinylidene fluoride (PVDF), which is an established polymer in membrane technology, and then examined whether CNT-attached PVDF is immunologically safe for medical purposes compared to CNT alone. To test this, we treated RAW 264.7 murine macrophages (RAW cells) with CNT-attached PVDF and analyzed the production of nitric oxide (NO), a potent proinflammatory mediator, in these cells...
December 2017: Immune Network
Melanie Carder, Andrew Darnton, Matthew Gittins, S Jill Stocks, David Ross, Chris M Barber, Raymond M Agius
Much of the current burden of long-latency respiratory disease (LLRD) in Great Britain is attributed to historical asbestos exposure. However, continuing exposure to other agents, notably silica, also contributes to disease burden. The aim of this study was to investigate the incidence of work-related LLRD reported by chest physicians in Great Britain, including variations by age, gender, occupation and suspected agent.LLRD incidence and incidence rate ratios by occupation were estimated (1996-2014). Mesothelioma cases by occupation were compared with proportional mortality ratios...
December 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
Naveena Yanamala, Elena R Kisin, Dmitriy W Gutkin, Michael R Shurin, Martin Harper, Anna A Shvedova
Humans exposed to asbestos and/or asbestiform fibers are at high risk of developing many lung diseases including asbestosis, lung cancer, and malignant mesothelioma. However, the disease-causing potential and specific metabolic mechanisms and pathways associated with various asbestos/asbestiform fiber exposures triggering different carcinogenic and non-carcinogenic outcomes are still largely unknown. The aim of this this study was to investigate gene expression profiles and inflammatory responses to different asbestos/asbestiform fibers at the acute/sub-acute phase that may be related to delayed pathological outcomes observed at later time points...
December 26, 2017: Journal of Toxicology and Environmental Health. Part A
Helena Lauri
High-resolution computed tomography (HRCT) is a method of examination which is more precise than chest 2-rat in the diagnosis and monitoring of diseases of the lung tissue and the airways. Modern CT equipment enables a volume HRCT scan covering the whole lung tissue. HRCT slices can also be constructed from contrast-enhanced CT scans of the chest of the whole body. HRCT of the lungs can be applied to the diagnosis of both acute and more chronic diffuse diseases of the lung tissue and the airways. The best-known indications for HRCT include idiopathic interstitial pneumonias, such as idiopathic pulmonary fibrosis...
2017: Duodecim; Lääketieteellinen Aikakauskirja
Zhaoqiang Jiang, Shibo Ying, Wei Shen, Xianglei He, Junqiang Chen, Hailing Xia, Min Yu, Yun Xiao, Lingfang Feng, Lijin Zhu, Li Ju, Xinnian Guo, Yixiao Zhang, Jia-Wei Shen, Yan Tong, Xing Zhang, Jianlin Lou
Fibulin-3 has been reported as a potential biomarker for mesothelioma. However, little is known about the diagnostic efficacies of fibulin-3 for asbestos-related diseases (ARDs) in China. This study was to investigate the utility of fibulin-3 for asbestos exposure and ARDs. A total of 430 subjects were recruited from Southeast China, including healthy individuals, asbestos-exposed (AE) individuals, and patients with pleural plaques (PP), asbestosis, and malignant pleural mesothelioma (MPM). Plasma fibulin-3 was measured using the enzyme-linked immunosorbent assay...
2017: Disease Markers
Valérie Forest, Jean-Michel Vergnon, Cyril Guibert, Dimitrios Bitounis, Lara Leclerc, Gwendoline Sarry, Jérémie Pourchez
Mineralogical analyses of clinical samples have been proved useful to identify causal relationship between exposure to airborne particles and pulmonary diseases. The most striking example is asbestosis where the assessment of asbestos bodies in patient lung samples has allowed defining values specific of pathologies. However, this type of analyses only considers the micro-sized fraction of the particles, neglecting the specific impact of nano-sized particles which have been otherwise shown to be reactive and able to induce biological effects...
November 2017: Nanotoxicology
Pedro Paulo Teixeira E Silva Torres, Marcelo Fouad Rabahi, Maria Auxiliadora Carmo Moreira, Gustavo de Souza Portes Meirelles, Edson Marchiori
Idiopathic pulmonary fibrosis is a severe and progressive chronic fibrosing interstitial lung disease, a definitive diagnosis being established by specific combinations of clinical, radiological, and pathological findings. According to current international guidelines, HRCT plays a key role in establishing a diagnosis of usual interstitial pneumonia (UIP). Current guidelines describe three UIP patterns based on HRCT findings: a typical UIP pattern; a pattern designated "possible UIP"; and a pattern designated "inconsistent with UIP", each pattern having important diagnostic implications...
September 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
Changjiang Xue, Na Wu, Xue Li, Meihua Qiu, Xuqin Du, Qiao Ye
BACKGROUND: Asbestosis and silicosis are progressive pneumoconioses characterized by interstitial fibrosis following exposure to asbestos or silica dust. We evaluated the potential diagnostic biomarkers for these diseases. METHODS: The serum concentrations of Krebs von den Lungen-6 (KL-6), surfactant protein D (SP-D), and matrix metalloproteinase-2 (MMP-2), MMP-7, and MMP-9 were measured in 43 patients with asbestosis, 45 patients with silicosis, 40 dust-exposed workers (DEWs) without pneumoconiosis, and 45 healthy controls (HCs)...
November 17, 2017: BMC Pulmonary Medicine
Giancarlo Ripabelli, Manuela Tamburro, Domiziana Di Tella, Francesco Carrozza, Michela Lucia Sammarco
OBJECTIVE: To evaluate environmental asbestos sources, mesothelioma incidence and mortality, awareness on asbestos-related diseases (ARD) by general practitioners (GPs) in Molise Region. METHODS: The contaminated sites in three towns were identified by census; mesothelioma incidence (2000-2012) and mortality (2003-2013) was achieved from local registries; GPs were interviewed on practiced population's exposures and ARD diagnosis. RESULTS: 54...
November 3, 2017: Journal of Occupational and Environmental Medicine
Venkiteswaran Muralidhar, Md Faizul Ahasan, Ahad Mahmud Khan
We report for the first time asbestosis among ship-breaking workers of Sitakunda in Bangladesh who were exposed to asbestos during ship-based and beach-based operations for at least 10 years. Asbestosis was present among 35% of workers. Years of work (>20) and forced vital capacity (<80% of predicted) were significantly associated with the disease. Currently, global ship-breaking operations are mainly concentrated in the Indian subcontinent, and Bangladesh has the majority share. Ninety per cent of domestic steel is produced in the ship-breaking operations in Bangladesh and is an important contributor to the economy...
November 3, 2017: BMJ Case Reports
Inke Sabine Feder, Anja Theile, Andrea Tannapfel
OBJECTIVES: This study has researched the significance of histologically raised findings and lung dust analyses in the context of claiming the recognition of and thus compensation for an asbestos-associated occupational disease. MATERIAL AND METHODS: For this approach, all findings from the German Mesothelioma Register in 2015 that included lung dust analyses were evaluated and were compared with information on asbestos fiber exposure at work based on fiber years, and with the results of radiological findings...
November 2, 2017: International Journal of Occupational Medicine and Environmental Health
Carolina Mensi, Marco Mendola, Barbara Dallari, Maryam Sokooti, Ramin Tabibi, Luciano Riboldi, Dario Consonni
BACKGROUND: We examined characteristics of peritoneal (PEM) and pleural (PLM) mesothelioma in Lombardy, Italy. METHODS: From the Lombardy Mesothelioma Registry we selected PEM (N=300) and PLM (N=5011) cases diagnosed in 2000-2014. We investigated asbestos exposure and presence of asbestosis or pleural plaques. RESULTS: Incidence rates (per 1,000,000 person-years, world standardized) of PEM were 1.2 (men) and 0.9 (women), compared with 22.6 and 8...
October 23, 2017: Cancer Epidemiology
Tatsuya Shirai, Takeshi Saraya, Miku Oda, Hajime Takizawa
No abstract text is available yet for this article.
October 19, 2017: BMJ Case Reports
B Huret, S Boulanger, L Benhamed, X Deprez, D Caparros
INTRODUCTION: Rheumatoid arthritis (RA) is a chronic inflammatory disease affecting the joints but which frequently includes extra articular effects, including pulmonary nodules, which grow faster under immunosuppressive treatment. CASE REPORT: A 74 years old man, with mild asbestosis, underwent treatment with methotrexate then leflunomide (LEF) for seropositive RA. In February 2014, during monitoring of his asbestosis, chest CT scan showed the appearance of thick-walled cavitating lung nodules, with a central and sub pleural distribution...
November 2017: Revue des Maladies Respiratoires
Christian Eisenhawer, Michael K Felten, Thomas Hager, Mikhail Gronostayskiy, Philipp Bruners, Andrea Tannapfel, Thomas Kraus
BACKGROUND: Health surveillance of formerly asbestos exposed individuals focus on early detection of asbestos related diseases, such as lung fibrosis (asbestosis), pleural plaques, mesothelioma and lung cancer in particular. One main concern is the early and clear identification of lesions with a high risk of malignant changes and their undelayed clinical work-up. False positive results may lead to unnecessary and often painful diagnostic interventions, which create high costs when applied to a large cohort and also may discredit the whole program...
2017: Journal of Occupational Medicine and Toxicology
Ntombizodwa Ndlovu, David Rees, Jill Murray, Naseema Vorajee, Guy Richards, Jim teWaterNaude
The accurate diagnosis of asbestos-related diseases is important because of past and current asbestos exposures. This study evaluated the reliability of clinical diagnoses of asbestos-related diseases in former mineworkers using autopsies as the reference standard. Sensitivity, specificity, positive predictive value and negative predictive value were calculated. The 149 cases identified had clinical examinations 0.3-7.4 years before death. More asbestos-related diseases were diagnosed at autopsy rather than clinically: 77 versus 52 for asbestosis, 27 versus 14 for mesothelioma and 22 versus 3 for lung cancer...
July 2017: ERJ Open Research
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