558 results for “Reaction Department”, page 21 of 28
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Medical study · Medical research · 2002
Additional proteins in BAL fluid of Metsovites environmentally exposed to asbestos: more evidence of "protection" against neoplasia?
…The two proteins were present in all Metsovites with PCs but in none without PCs and also in none of the control groups. This study further separates two groups of Metsovites with different reaction to asbestos…
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Medical study · Medical research · 1989
Lung cell reactions in guinea pigs after inhalation of asbestos (amosite)
…blood vessels and in connection with the bronchioles. The data suggest that amosite at low doses ultimately causes fibrosis with a reaction pattern different from that seen in silicosis. The inflammation and fibrosis seems to develop…
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Medical study · Medical research · 2001
Comparison of antibodies to HBME-1 and calretinin for the detection of mesothelial cells in effusion cytology
…identifying mesothelial cells in cytologic samples, showing the highest sensitivity for mesothelial cells, as evidenced by a more intense staining reaction in a higher percentage of cells than with HBME-1. Published 2001 Wiley-Liss, Inc.
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Medical study · Medical research · 2008
The search for asbestos within the Peter Mitchell Taconite iron ore mine, near Babbitt, Minnesota
…and ferrian sepiolite. It is proposed that the alteration of the amphiboles was caused by reaction with water-rich acidic fluids that moved through the mine faults and shear zones. The fibrous amphiboles and ferrian sepiolite…
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Medical study · Medical research · 1991
Contributions of experimental asbestosis in sheep to the understanding of asbestosis
…to 5 years. The authors described four tissue reactions to asbestos: no-retention, low-retention, high-retention and intermediate. They suggested that the intermediate reaction might explain non-progressive cases of minimal asbestosis. Exposure dose and…
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Medical study · Medical research · 2017
Clinical safety and activity of pembrolizumab in patients with malignant pleural mesothelioma (KEYNOTE-028): preliminary results from a non-randomised, open-label, phase 1b trial
… grade 3 iridocyclitis, grade 1 erythema multiforme, and grade 3 erythema; and grade 2 infusion-related reaction. No treatment-related deaths or discontinuations occurred. Five (20%) patients had a partial response, for an objective response of…
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Medical study · Medical research · 1988
Asbestos-induced endothelial cell activation and injury. Demonstration of fiber phagocytosis and oxidant-dependent toxicity
…iron present within amosite asbestos fibers by deferoxamine produced a 33% reduction in asbestos cytotoxicity, suggesting a potential role for hydroxyl radical-mediated injury via the iron-catalyzed Haber-Weiss reaction.(ABSTRACT TRUNCATED AT 250 WORDS)
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Medical study · Medical research · 1996
Glutathione S-transferase and N-acetyltransferase genotypes and asbestos-associated pulmonary disorders
…= 24) or nonmalignant pulmonary disorders, such as asbestosis and/or pleural plaques (n = 52). Lymphocyte DNA and the polymerase chain reaction were used to determine the GSTM1, GSTT1, and NAT2 genotypes of the study…
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Medical study · Medical research · 1990
Unusual granular reactivity for carcinoembryonic antigen in malignant mesothelioma
…biopsies and three cell blocks from pleural effusions. Four tumours were epithelial and one was bimorphic. Immunoelectron microscopy in one case showed reaction product mainly associated with cytoplasmic vesicles, possibly Golgi-derived, and rough endoplasmic reticulum…
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Medical study · Medical research · 1985
Selective exposure and analysis of the sheep tracheal lobe as a model for toxicological studies of respirable particles
…at Day 1) and only macrophages after; lung histology documented an early macrophagic alveolitis which decreased to less than 10% of the initial inflammatory reaction at Day 60, without other distortion of the lung and airway…
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Medical study · Medical research · 1996
Ber-EP4 for differentiating adenocarcinoma from reactive and neoplastic mesothelial cells in serous effusions. Comparison with carcinoembryonic antigen, B72.3 and Leu-M1
…diagnosis of serous effusions. It has the advantage of high sensitivity and ease of interpretation because of the high percentage of tumor cells stained, characteristic membranous staining and lack of cross-reaction with background inflammatory cells.
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Medical study · Medical research · 1998
Solitary fibrous tumor of the liver: a clinicopathologic and immunohistochemical study of nine cases
…field (hpf). Immunohistochemically, all the tumors showed a strong positive reaction against antibodies for CD-34 and vimentin. Follow-up information showed that two patients died within days of postsurgical resection of the tumor, whereas one…
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Medical study · Medical research · 1998
Exposure to carbon black: a cancer risk?
…tissues. It is therefore quite understandable that many researchers propose to interpret the changes observed in rat lung tissues after inhalation of carbon black as rat-specific reaction mechanisms that cannot be applied to human tissues…
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Medical study · Medical research · 2013
First report on Cryptococcus neoformans in pigeon excreta from public and residential locations in the metropolitan area of Cuiabá, State of Mato Grosso, Brazil
…colonies were identified by urease test, carbon source assimilation tests and canavanine-glycine-bromothymol blue medium. Polymerase chain reaction primer pairs specific for C. neoformans were also used for identification. Cryptococcus neoformans associated to pigeon excreta…
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Medical study · Medical research · 1992
Biphasic lung diffusing capacity: detection of early asbestos induced changes in lung function
…choice in subjects with an isolated decrease in DLCO. Exposure to asbestos can be associated not only with a reduction in DLCO, but also with a temporary increase in DLCO caused by a subclinical inflammatory reaction.
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Medical study · Medical research · 1997
Short-term inhalation and in vitro tests as predictors of fiber pathogenicity
…and SiC. However, measurements of BrdU uptake into lung cells showed that amosite and SiC produced a greater reaction than code 100/475, which itself caused no more proliferation than that seen in untreated lungs. These…
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Medical study · Medical research · 1995
Radiological changes in asbestos cement workers
…exposure variables. Progression was found long after the end of exposure. The findings on costophrenic angle obliterations, supposed to be sequelae of benign pleural effusions, were consistent with an immediate reaction triggered by intense asbestos exposure.
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Medical study · Medical research · 2005
Fenten chemistry of Fe(III)-exchanged zeolitic minerals treated with antioxidants
…the Fenton reactivity of Fe(III)-exchanged erionite and mordenite after treatment with antioxidants. The Fenton assay involved the reaction of hydroxyl radicals with dimethyl sulfoxide. Fenton reactivity was most marked with AA followed by GSH…
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Medical study · Medical research · 2018
New Insights on Diagnostic Reproducibility of Biphasic Mesotheliomas: A Multi-Institutional Evaluation by the International Mesothelioma Panel From the MESOPATH Reference Center
…the usefulness of FISH detection of CDKN2A(p16) HD compared to BAP1 loss on the spindle cell component for the separation in ambiguous cases between benign florid stromal reaction from true sarcomatoid component of biphasic mesothelioma…
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Medical study · Medical research · 1982
The mesothelium and its reactions: a review
The origins, nature, and reactions of the mesothelium have intrigued investigators for over 100 years. Recently, the use of sophisticated techniques has clarified earlier impressions of its development, structure, and function. The structure of mesothelium reflects…