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Abstract AI-Helper 아이콘AI-Helper

Ionizing radiation can induce cellular oxidative stress through the generation of reactive oxygen species, resulting in cell damage and cell death. The aim of this study was to determine whether the antioxidant effects of the flavonoid fisetin (3,7,3',4'-tetrahydroxyflavone) included the radioprotec...

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제안 방법

  • In this study, fisetin was found to inhibit DNA damage in cells exposed to γ-irradiation and to protect cell membrane lipids and cellular proteins from radiation-induced peroxidation and carbonylation, respectively.
  • Thus, this study investigated the ability of fisetin to inhibit cell damage in Chinese hamster lung fibroblasts exposed to γ-irradiation, and the underlying mechanisms conferring protection.

데이터처리

  • The data were subjected to an analysis of variance (ANOVA) using Tukey’s test to analyze differences.

이론/모형

  • Twenty-four hours later, DCF-DA was added to each well to a final concentration of 100 μM and cells were incubated for an additional 30 min at 37°C. After washing with phosphate-buffered saline (PBS), the stained cells were mounted in mounting medium (DAKO, Carpinteria, CA, USA) on a microscope slide and were then observed by confocal microscopy, and images were collected using the Laser Scanning Microscope 5 PASCAL program (Carl Zeiss, Jena, Germany).
  • The effect of fisetin on cell viability was determined in a [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium] bromide (MTT) assay, which is based on the reduction of a tetrazolium salt by mitochondrial dehydrogenase in viable cells (Carmichael et al., 1987). Cells were treated (or not) with fisetin and subjected to γ-irradiation as described above.
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