11 results for “Reaction Department”
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Medical study · Medical research · 2012
Fenton reaction induced cancer in wild type rats recapitulates genomic alterations observed in human cancer
…carcinogenesis in humans. Intraperitoneal administration of ferric nitrilotriacetate initiates a Fenton reaction in renal proximal tubules of rodents that ultimately leads to a high incidence of renal cell carcinoma (RCC) after repeated treatments. We performed high…
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Medical study · Medical research · 2021
Double-edged Sword Role of Iron-loaded Ferritin in Extracellular Vesicles
…epidemiological and animal studies have demonstrated that excess iron is a risk for cancer. The responsible mechanisms are: 1) increased intracellular iron catalyzes the Fenton reaction to generate hydroxyl radicals, leading to mutagenic oxidative DNA lesions…
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Medical study · Medical research · 2017
In response to Sharing different perspectives to understand asbestos-induced carcinogenesis: A comment to Jiang et al. (2016) by Alessandro Francesco Gualtieri (2017)
…hemoglobin. They stated that catalytic Fe(II) is more important than Fe(III) because it initiates a Fenton reaction. They described two roles of macrophages: scavenging fibers and promoting inflammation. They stated that chrysotile is carcinogenic…
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Medical study · Medical research · 2020
Efficient separation of Zn(Ⅱ) from Cd(Ⅱ) in sulfate solution by mechanochemically activated serpentine
…in the presence of SO42-. By adjusting the parameters including grinding intensity, reaction temperature, serpentine dosage and salt species, the optimum conditions were determined and a 92% separation rate of Zn(Ⅱ) and Cd(Ⅱ) ions…
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Medical study · Medical research · 2016
Dual preventive benefits of iron elimination by desferal in asbestos-induced mesothelial carcinogenesis
…its effects on asbestos-induced peritoneal inflammation and iron deposition, as well as oxidative stress. Nitrilotriacetate was used to promote an iron-catalyzed Fenton reaction as a positive control. Desferal significantly decreased peritoneal fibrosis, iron deposition…
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Medical study · Medical research · 2014
Rat model demonstrates a high risk of tremolite but a low risk of anthophyllite for mesothelial carcinogenesis
…In half of the animals, repeated intraperitoneal injections of nitrilotriacetate (NTA), an iron chelator to promote Fenton reaction, were performed to evaluate the potential involvement of iron overload. Tremolite induced MM with a high incidence (96…
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Medical study · Medical research · 2012
Iron overload signature in chrysotile-induced malignant mesothelioma
…closely associated with iron overload: repeated administration of an iron chelator, nitrilotriacetic acid, which promotes the Fenton reaction, significantly reduced the period required for carcinogenesis; massive iron deposition was found in the peritoneal organs with high…
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Medical study · Medical research · 2008
Characteristics and modifying factors of asbestos-induced oxidative DNA damage
…Natural iron chelators, such as citrate, adenosine 5'-triphosphate and guanosine 5'-triphosphate, did not inhibit this reaction. Second, we used time-lapse video microscopy to evaluate how cells cope with asbestos fibers. RAW264.7 cells…
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Medical study · Medical research · 2014
Iron overload as a major targetable pathogenesis of asbestos-induced mesothelial carcinogenesis
…compared with about 600 days for crocidolite and amosite. Nitrilotriacetic acid, a chemical that promotes iron-driven reactions, significantly promoted tumor development for all three fibers. Homozygous deletion (complete loss) of the Cdkn2a/2b tumor-suppressor…
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Medical study · Medical research · 2019
Carbonic anhydrase 9 confers resistance to ferroptosis/apoptosis in malignant mesothelioma under hypoxia
…and acidity provide microenvironment for selection under evolutionary pressure and proliferation in cancer cells. Carbonic anhydrases (CAs) are a superfamily of metalloenzymes present in all life kingdoms, equilibrating the reactions among CO2, bicarbonate and H+. CA9…
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Medical study · Medical research · 2019
Iron addiction with ferroptosis-resistance in asbestos-induced mesothelial carcinogenesis: Toward the era of mesothelioma prevention
…caused by modern industrial development. The major pathogenic mechanisms include oxidative stress either via catalytic reactions against the asbestos surface or frustrated phagocytosis of macrophages, and specific adsorption of hemoglobin and histones by asbestos fibers in…