Effect of gold nanoparticles on glutathione and malondialdehyde levels in liver, lung and heart of rats

We studied the effect of gold nanoparticles (NPs) on oxidative stress markers including reduced glutathione (GSH) and malondialdehyde (MDA) in different organs of rats. Adult male Wistar-Kyoto rats were randomly divided into 3 groups of 5 animals each. One group served as control and received vehicl...

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Bibliographic Details
Published in:Saudi journal of biological sciences 2012-10, Vol.19 (4), p.461-464
Main Authors: Khan, Haseeb A., Abdelhalim, Mohamed Anwar K., Al-Ayed, Mohammed S., Alhomida, Abdullah S.
Format: Article
Language:English
Subjects:
adults
analysis of variance
Glutathione
Gold
Gold nanoparticles
heart
lipid peroxidation
liver
lungs
males
Malondialdehyde
nanogold
Original
Oxidative stress
Physiological effect
Physiology
Rats
الذهب
الفسيولوجيا
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Summary:We studied the effect of gold nanoparticles (NPs) on oxidative stress markers including reduced glutathione (GSH) and malondialdehyde (MDA) in different organs of rats. Adult male Wistar-Kyoto rats were randomly divided into 3 groups of 5 animals each. One group served as control and received vehicle only. The remaining two groups were treated with 50μl of 10nm sized gold NPs, daily for 3 and 7days, respectively. The rats were sacrificed 24h after the last injection of NPs. Administration of gold NPs did not cause any significant change in GSH levels in liver, lung and heart on day 3 or day 7. There was no significant effect of gold NPs on MDA levels in lung and heart whereas significant increases in MDA levels were found in the liver of rats treated with gold nanoparticles on both 3 and 7days post-dosing (ANOVA F=7.113, P=0.010). In conclusion, the findings of this preliminary study suggest that gold NPs of 10nm diameter produce significant lipid peroxidation in rat liver however lungs and heart do not show any oxidative stress. Further studies are warranted to examine the effects of a broader dose range of gold NPs on the levels of free radical indices in different organs of rats.
ISSN:1319-562X
2213-7106
DOI:10.1016/j.sjbs.2012.06.005