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The Risk Evaluation of Tungsten Oxide Nanoparticles in Cultured Rat Liver Cells for Its Safe Applications in Nanotechnology BABT
Turkez,Hasan; Sonmez,Erdal; Turkez,Ozlem; Mokhtar,Yousef Ibrahem; Stefano,Antonio Di; Turgut,Guven.
Tungsten (VI) oxide (WO3) nanoparticles (NPs) are used for many industrial purposes in everyday life. However, their effects on human health have not been sufficiently evaluated. Therefore, the present study was designed to investigate the toxicity potentials of various concentrations (0 to 1000 ppm) of WO3NPs (<100 nm particle size) in cultured primary rat hepatocytes. The results of cell viability assay showed that the higher concentrations of dispersed WO3 NPs (300, 500 and 1000 ppm) caused significant (p<0.05) decreases of cell viability. Also, dose dependent negative alterations were observed in oxidative status and antioxidant capacity levels after the application of WO3 in cultured rat primary hepatocytes. The results of genotoxicity tests...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tungsten oxide; Nanotoxicity; Genotoxicity; Cytotoxicity; Hepatocytes; Oxidative stress.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000400532
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The investigation of cytogenetic and oxidative effects of diffractaic acid on human lymphocyte cultures BABT
Demir,Leyla; Toğar,Başak; Türkez,Hasan; Sozio,Piera; Aslan,Ali; Stefano,Antonio Di.
Diffractaic acid (DA) is a naturally occurring depside derivative found in several lichen species. It has a wide range of important biological effects such as analgesic and antiviral properties, although its cytotoxic, cytogenetic and oxidative effects have not been investigated in human blood tissue yet. Therefore, increasing concentrations (1, 5, 10, 25, 50, 100 and 200 mgL-1) of DA was added into human whole blood cultures. 3-(4.5-dimethylthiazol-2-yl)-2.5-diphenyl tetrazolium bromide (MTT) assay was used to assess the cell viability and/or cytotoxicity and genotoxic damage potential of DA using chromosome aberration (CA) and micronucleus (MN) tests were performed. In addition, oxidative alterations were determined by the total antioxidant capacity...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diffractaic acid; Cytotoxicity; Human blood; Genotoxicity; Oxidative status.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100075
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