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首页> 外文期刊>Biochemistry and Molecular Biology International >Different effects of the constituents of EGb761 on apoptosis in rat cerebellar granule cells induced by hydroxyl radicals.
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Different effects of the constituents of EGb761 on apoptosis in rat cerebellar granule cells induced by hydroxyl radicals.

机译:EGb761成分对羟自由基诱导的大鼠小脑颗粒细胞凋亡的不同影响。

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摘要

The present study was conducted to evaluate the different effects of the constituents of EGb761 (Ginkgo biloba Extract) on apoptosis in cerebellar granule cells induced by hydroxyl radicals. The total flavonoid component of EGb761, two pure EGb761 components (rutin and quercetin), and a mixture of flavonoids and terpenes protected cerebellar granule cells from oxidative damage and apoptosis induced by hydroxyl radicals. ESR(electron spin resonance) results showed that the IC50 of the flavonoids for scavenging hydroxyl radicals was almost the same as that of EGb761, even though flavonoids make up only 24% of EGb761, implying that other constituents of EGb761 besides flavonoids can scavenge hydroxyl radicals. Total terpenes of EGb761 did not protect against apoptosis. Flavonoids and terpenes did not show a synergistic effect in this regard. Terpenes did not scavenge hydroxyl radicals directly, which might be related to their "cage-like" structures.
机译:本研究旨在评估银杏叶提取物银杏叶提取物成分对羟基自由基诱导的小脑颗粒细胞凋亡的影响。 EGb761的总黄酮成分,两种纯的EGb761成分(芦丁和槲皮素)以及类黄酮和萜烯的混合物可保护小脑颗粒细胞免受羟基自由基引起的氧化损伤和细胞凋亡。 ESR(电子自旋共振)结果表明,黄酮类化合物清除羟基自由基的IC50几乎与EGb761相同,尽管黄酮类化合物仅占EGb761的24%,这表明除黄酮类化合物以外,EGB761的其他成分也可以清除羟基自由基。 。 EGb761的总萜不能防止细胞凋亡。类黄酮和萜烯在这方面没有显示协同作用。萜烯并没有直接清除羟基自由基,这可能与其“笼状”结构有关。

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