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To explore oxidative damage induced by PBDE 209 and its mechanism we carried out this research. Mice were given intragastrically with PBDE 209 via a metal gastric-tube at different levels (0, 50, 100, 200 mg/(kg·d)) for seven days and the malondialdehyde (MDA) content, superoxide dismutase (SOD) activities in liver and liver index were mensurated. Results showed that along with elevation of PBDE 209...
In order to study the effect of butyl benzyl phthalatee (BBP) on hepatic cells of rat, hepatic cells of rat were exposed to different dose (5 μmol / L, 20 μmol / L, 80 μmol / L) of BBP in vitro for 1 hour. Thiobarbituric acid (TBA) method , KCl-SDS precipitation method and Dinitrophenylhydrazone (DNPH) colorimetric method were used to detect malondialdehyde (MDA) content, DPC coefficient changes and...
The effect of Di-(2-ethylhexyl) Phthalate was investigated when alga Scenedesmus obliquus has been exposed to different concentrations (5, 10, 20, 40 and 80 mg · L-1) at 24, 48, 72 and 96 hours of exposure. Toxicity test was done by using four biomarkers including growth inhibition rate and the content of chlorophyll a, chlorophyll b and carotenoid. This study indicated that with the increase concentration...
We developed a quantitative detection method that can reflect the degree of visceral cell oxidative DNA damage induced by exogenous compound exposures using 8-OHdG as a biomarker in vitro. In this study formaldehyde (FA) was used as a model exogenous compound and malondialdehyde (MDA) was used as a reference indicator. Rat liver cell suspension was applied in this in vitro exposure experiments as...
To study the effect of Butylbenzyl phthalate inducing DNA damages in Rat lung cells. KCl-SDS assay and comet assay were used to reveal the amount of DNA-protein crosslinks and effect of DNA damages induced by different doses of Butylbenzyl phathalate in vitro. The results showed that Butylbenzyl phathalate could cause DNA breakage at low level (10 μmol/L, P<;0.01), while at higher level (40 μmol/L,...
Owing to its good flame-retardant effect, polybrominated diphenyl ethers (PBDEs) were widely added to electronic, electrical appliances, as well as textiles and chemical products. Decabromodiphenyl Ether (BDE-209) is one class of PBDEs which was most demanded in international market. To illustrate the possible function of BDE-209 on rat liver, hepatic cells were expose to BDE-209 with different concentrations...
To illustrate the possible function of genotoxicity of BBP on DNA, this study took mice livers as experimental materials to detect the levels of DNA-protein crosslinks (DPC), the activity of surperoxide dismutase (SOD), and the contents of malondialdehyde (MDA) with intraperitioneal injection of different doses of BBP for two consecutive 14 days. DPC levels in hepatic cells showed a dose-dependent...
How does inhaled formaldehyde transfer the genotoxicity from exposure organ to site distant organs via blood? This is the key question to understand leukemia induced by formaldehyde. To answer this question, we used new born calf serum (NBS) as "blood" and Hela cells as materials to investigate its effects on cellular thiol concentration and DNA-protein crosslink (DPC) induced by formaldehyde...
One kind of nanosize titanium dioxide (nano-TiO2) was successfully made through anodization of titanium in this study, and its cytotoxicity and OS-mediated toxicity was detected by MTT, SOD and MDA assay in vitro and in vivo. The results showed that high does (0.8, 1.6 mg/mL) of this nano-TiO2 can cause cytotoxicity and OS-mediated toxicity, and reverse dose-rate effect happened in the low and medium...
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