Asbestos related diseases among workers of asbestos processing plants in relation to type of production and asbestos use.
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AbstractBackground: Asbestos dust is one of the most dangerous pneumoconiotic and carcinogenic agents. The aim of this study was to assess the occurrence of asbestosis and pleural mesothelioma, depending on asbestos consumption and the type of manufactured products, among former asbestos workers in Poland. Material and Methods: The study subjects included employees of 18 large state-owned asbestos processing enterprises operating in the Polish market in 1945–1998. The study is based on data obtained from asbestos company records and the Central Register of Occupational Diseases data on the cases of asbestosis and mesothelioma for the period from 1970 till 2012 as well as data from Amiantus Programme. The analysis was performed for 5 sectors comprising plants classified according to the products manufactured and applied production technology. Results: In the study period, 2160 cases of asbestosis and 138 cases of mesothelioma were reported. The plants processed a total of about 2 million tonnes of asbestos, including about 7.5% of crocidolite. Total asbestos consumption was a strong predictor of the rate of asbestosis incidence (R2 = 0.68, p = 0.055). The highest risk occurrence of asbestosis was observed in the production of textiles and sealing products. Mesothelioma occurred only in plants where crocidolite had been ever processed. Conclusions: Total asbestos consumption was a strong predictor of the rate of asbestosis incidence. The observation confirms the relationship between exposure to crocidolite and the occurrence of mesothelioma, regardless of the manufactured products, and suggests the absence of such a link for the total volume of asbestos consumption.
CitationMed Pr 2015;66(1):1–9
Sponsors“Risk assessment of the incidence and mortality due to asbestos-related diseases among workers occupationally exposed to asbestos on the basis of the long-term epidemiological observation”, IMP 10.14.
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An unjustified prognosis of the number of asbestos-related lung cancer cases caused by an increase in airborne asbestos concentrations as a result of removing of asbestos-cement products.Szeszenia-Dabrowska, Neonila; Swiatkowska, Beata; Nofer Institute of Occupational Medicine, Lodz, Poland (2015-03-22)We have read the recently published article under an interesting title “Environmentally Related Diseases and the Possibility of Valuation ofTheir Social Costs” by I. Hajok et al. , the main objective of which was “to estimate the risks of the morbidity of the asbestos-related lung cancer in the general population of Poles as the result of increased exposure to asbestos fibers which occurs during the removal and disposal of asbestos-cement products in Poland.” Contrary to mesothelioma, considered to be a neoplasm specific to environmental exposure to asbestos [2–6], the risk of lung cancer is rarely a subject of analysis in the context of environmental exposure of residents. It is, among others, due to having no features of neoplasm that enable the indication of asbestos as a causative factor, as well as numerous competitive factors of the incidence of this neoplasm. According to the recommendations of the experts of WHO, in the case of this kind of neoplasm, the only practical approach is to use the population attributable fraction (PAF) [7, 8]. Therefore, the published article is even more noteworthy; its contents raise a number of questions and doubts concerning both substantive bases and methodological approach to the analysis.
Metabolic genotypes as modulators of asbestos-related pleural malignant mesothelioma risk: a comparison of Finnish and Italian populations.Neri, Monica; Taioli, Emanuela; Filiberti, Rosangela; Paolo Ivaldi, Giovanni; Aldo Canessa, Pier; Verna, Anna; Marroni, Paola; Puntoni, Riccardo; Hirvonen, Ari; Garte, Seymour (2006-07)The role of CYP1A1, GSTM1, GSTT1, EPHX1, and NAT2 genotypes in susceptibility to malignant mesothelioma (MM) was compared in two case-control studies, previously conducted in two countries where different types of asbestos fibers have been used [Hirvonen et al., 1995. Inherited GSTM1 and NAT2 defects as concurrent risk modifiers in asbestos-related human malignant mesothelioma. Cancer Res. 55, 2981-2983; Hirvonen et al., 1996. Glutathione S-Transferase and N-Acetyltransferase genotypes and asbestos-associated pulmonary disorders. J. Natl. Cancer Inst.88, 1853-1856; Neri et al., 2005. Pleural malignant mesothelioma, genetic susceptibility and asbestos exposure. Mutat. Res. 592, 36-44]. Fifty-seven asbestos-exposed MM patients and 255 controls were recruited in Italy, 48 cases and 121 controls in Finland. In order to make the two studies comparable, they have been updated and new genotyping analyses have been performed. The NAT2 fast acetylator and EPHX1 low-activity genotypes were positively associated with MM in the Italian study, while they were negatively associated with this malignancy in the Finnish one. A combined significant effect was also observed in the Italian study for the NAT2 fast acetylator and EPHX1 low-activity genotypes, while this combination was protective in the Finnish study. Combination of NAT2 fast acetylator and GSTM1 null genotype posed a significantly increased risk of MM in the Italian, but not in the Finnish study. The opposite results obtained in Finland and Italy may be ascribed to random chance, but a role may be hypothesized for the fact that different types of asbestos have been used in the two countries.
Risk factors for lung cancer in Iowa women: implications for prevention.Neuberger, John S.; Mahnken, Jonathan D.; Mayo, Matthew S.; Field, R. William (2006)BACKGROUND: Multiple risk factors possibly associated with lung cancer were examined as part of a large-scale residential radon case-control study conducted in Iowa between 1994 and 1997. We were particularly interested in stratifying risk factors by smoking status. Relatively little risk factor information is available for Midwestern rural women. METHODS: Four hundred thirteen female lung cancer cases and 614 controls aged 40-84, who were residents of their current home for at least 20 years, were included. Risk factors examined included cigarette smoking, passive smoking, occupation, chemical exposure, previous lung disease, family history of cancer, and urban residence. Multiple logistic regression analysis was conducted after adjusting for age, education, and cumulative radon exposure. RESULTS: As expected, active cigarette smoking was the major risk factor for lung cancer. While cessation of smoking was significantly associated with a reduced risk for lung cancer, the risk remained significantly elevated for 25 years. Among all cases, asbestos exposure was a significant risk. Among ex-smokers, pack-year history predominated as the major risk. Among never smokers, a family history of kidney or bladder cancer were significant risk factors (OR=7.34, 95% CI=1.91-28.18; and OR=5.02, 95% CI=1.64-15.39, respectively), as was a history of previous lung disease (OR=2.28, 95% CI=1.24-4.18) and asbestos exposure. No statistically significant increase in lung cancer risk was found for occupation or urban residence. CONCLUSIONS: Smoking prevention activities are urgently needed in rural areas of the United States. Relatives of individuals with smoking-related cancers are potentially at increased risk. Genetic risk factors should be more fully investigated in never smokers.