558 results for “Reaction Department”, page 3 of 28
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Medical study · Medical research · 1998
Reactive mesothelial hyperplasia vs mesothelioma, including mesothelioma in situ: a brief review
This article was a review of how to tell reactive mesothelial hyperplasia, a benign reaction of the lining cells, from epithelial mesothelioma in biopsy tissue, and of the idea of mesothelioma in situ. It summarized the…
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Medical study · Medical research · 1981
An assessment of the fibrogenic potential of two refractory fibres by intraperitoneal injection in rats
…tissue reaction was compared. Although the fibres differed considerably in surface properties and porosity the tissue reactions were identical and consisted of a mild chronic inflammatory response with a small amount of collagen present. The reaction…
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Medical study · Medical research · 2016
BAP1 Immunohistochemistry and p16 FISH in the Diagnosis of Sarcomatous and Desmoplastic Mesotheliomas
…help diagnose sarcomatous and desmoplastic mesotheliomas. These tumors can be hard to distinguish from organizing pleuritis, a benign reaction of the pleura. The authors tested tissue from 20 such pleural mesotheliomas, from 18 men and 2…
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Medical study · Medical research · 2021
Role of unfolded proteins in lung disease
…reports no new data of its own. It describes research on endoplasmic reticulum (ER) stress and the unfolded protein response (UPR), a cell's reaction to misfolded proteins, in lung disease. Reviewed triggers included cigarette smoke…
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Medical study · Medical research · 1991
Cytotoxic effects of quartz and chrysotile asbestos: in vitro interspecies comparison with alveolar macrophages
…in vitro. The type of cell reaction toward the cytotoxic dusts was always the same: a loss of cell viability (trypan blue dye exclusion test) was accompanied by the release of cytoplasmic and lysosomal enzymes. The…
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Medical study · Medical research · 1974
The ingestion of asbestos fibers
…which probably came from iron-containing macrophages. It is suggested that pleural plaques and hyaline nodules in the peritoneum represent a hypersensitivity reaction to ferritin protein coating on asbestos fibers. In South Africa only a few…
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Medical study · Medical research · 1999
Simian virus 40 is present in most United States human mesotheliomas, but it is rarely present in non-Hodgkin's lymphoma
…hamsters. In humans, SV40 has been detected in tumors of the first four types. Using the polymerase chain reaction (PCR), we tested 29 non-Hodgkin's lymphomas (intermediate and high-grade), 25 posttransplant lymphoproliferative disorders, and…
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Medical study · Medical research · 1986
US surgeon general ignites furor with findings on smoking in the workplace
…research study. A freelance writer described the US Surgeon General's December 1985 Smoking and Health report on cancer and chronic lung disease in the workplace, and the reaction to it. According to the article, the…
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Medical study · Medical research · 1970
Pulmonary talc granulomatosis. A complication of drug abuse
…who had injected methylphenidate (Ritalin) tablets into their veins. Granulomatosis here means small clusters of inflammatory cells forming in the lungs in reaction to talc particles. The authors explained that talc is used as a filler…
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Medical study · Medical research · 1988
Progressive lung cell reactions and extracellular matrix production after a brief exposure to asbestos
…this would be the most likely site of a significant cellular or fibrotic reaction. The characteristics and progression of tissue reactions occurring at first alveolar duct bifurcations after a single brief asbestos exposure was defined using…
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Medical study · Medical research · 1988
Formation of 8-hydroxydeoxyguanosine by asbestos and man made mineral fibres
…were compared with chrysotile fibres for their capacity to hydroxylate 2-deoxyguanosine to 8-hydroxydeoxyguanosine, a reaction that is mediated by formation of hydroxyl radicals. All three fibres produced 8-hydroxydeoxyguanosine in the absence of H2O2…
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Medical study · Medical research · 1971
The association of phagocytosed asbestos dust with lysosome enzymes
…staining combined with electron microscopy. It was found that the acid phosphatase reaction was confined to the lysosome series of organelles, but that not all of these structures gave a positive reaction. In dust-containing macrophages…
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Medical study · Medical research · 2004
Chestnut bur-shaped aggregates of chrysotile particles enable inoculation of Escherichia coli cells with plasmid DNA
…and chrysotile particles was exposed to agar using stirring apparatus, which allowed a constant vertical reaction force to be applied to the surface of the gel. Fluorescence microscopy was then used to illustrate the adsorption of…
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Medical study · Medical research · 2010
Effect of secondary phase formation on the carbonation of olivine
…reactors. Altering the reaction conditions changed the Mg-carbonate morphology. We propose that this corresponded to changes in the ability of the system to precipitate hydromagnesite or magnesite. During high-temperature reactions (200 degrees C), an…
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Medical study · Medical research · 2000
Tenascin expression and distribution in pleural inflammatory and fibrotic diseases
…as a marker of active pleural involvement. For this purpose we analyzed 71 histological samples of inflammatory and fibrotic pleura from patients with asbestos-induced pleural reaction (n = 6), postcardiac injury syndrome (n = 6…
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Medical study · Medical research · 2017
Chemical elimination of the harmful properties of asbestos from military facilities
…phosphoric acid. The process proved very effective when the phosphoric acid concentration was 30%, the temperature was 90°C and the reaction time 60min. Contrary to the common asbestos treatment method that consists of landfilling, the proposed…
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Medical study · Medical research · 2018
Pemetrexed-induced painful erythematous nodules in both legs in a patient with recurrent mesothelioma
…supported considering the reaction a drug-induced hypersensitivity. They reported her as the first patient described with such lesions while receiving pemetrexed for mesothelioma, adding a nodular form to the known skin reactions to this drug…
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Medical study · Medical research · 2019
Oxidative effects of lungs in Wistar rats caused by long-term exposure to four kinds of China representative chrysotile
…or 12 months. The lungs showed inflammation at 3 months, a fibrotic reaction at 6 months and severe fibrosis at 12 months. Markers of cell damage in lung washing fluid rose in exposed groups. In the…
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Medical study · Medical research · 2019
Iron from a geochemical viewpoint. Understanding toxicity/pathogenicity mechanisms in iron-bearing minerals with a special attention to mineral fibers
…and the experimental methods used for their study. Special attention is devoted to the Fenton-like chain reaction involving Fe2+ in the formation of highly reactive hydroxyl radicals. The final part of this review deals with…
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Medical study · Medical research · 2022
Exposure to silicates and systemic autoimmune-related outcomes in rodents: a systematic review
…Chrysotile did not induce ANA, and erionite fibers did induce ANA. Crystalline silica produced a lupus-like reaction in autoimmune-prone mouse strains, but the evidence in healthy strains was less convincing. The authors rated 19…