Abstract
We have examined the effect of α G-Rutin and luteolin on doxorubicin (DOX) toxicity in mice. In the heart, the lipid peroxide level, increased to 1.5 times of the normal level induced by DOX, decreased to the normal level after treatment with α G-Rutin or luteolin (i.p.). Glutathione peroxidase (GSHpx) activity, decreased to 73% of normal activity after DOX treatment, was shown to recover by the combined flavonoids. The lipid peroxide level in bone marrow cells increased to 5.9 times of the normal level by DOX treatment, whereas this level in the extra bone marrow cells did not change by treatment with DOX. The combination of α G-Rutin and luteolin with DOX significantly inhibited the DOX induced-increment of the lipid peroxide level in bone marrow cells. Flavonoids have also reduced the effect of DOX toxicity by oral administration. It is suggested that it is possible to reduce DOX toxicity by the intake of food including flavonoids. In NADPH-dependent lipid peroxidation, α G-Rutin and luteolin showed concentration-dependent inhibition. Therefore, we considered that the reduction effect of DOX toxicity by flavonoids was caused by antioxidative action and other effect of the flavonoids.
Published Version
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