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测定了不同月龄组(6、12、18和24)大鼠离体肝脏枯否细胞(KC)葡萄糖利用能力和线粒体的能量代谢状态,以及维生素E(VE)对这种状态的影响。结果表明,18月龄组和24月龄组肝脏KC葡萄糖利用能力和线粒体能量代谢明显低于6月龄组,前者分别为6月龄组的80.7%和64.9%,后者分别为80.5%和67.9%。18月龄和24月龄VE治疗组葡萄糖利用能力和线粒体能量代谢状态均有明显改善,并以18月龄组最明显,两者分别为正常对照的94.7%和97.3%。结果提示,老化对KC葡萄糖利用能力和线粒体能量代谢具有明显的负影响,VE对这种影响具有较好的预防作用。
The ability of glucose utilization and the energy metabolism of mitochondria in isolated rat liver Kupffer cells (KC) and the effect of Vitamin E (VE) on this condition were measured in different month groups (6,12,18 and 24). The results showed that the hepatic KC glucose utilization and mitochondrial energy metabolism of 18-month-old and 24-month-old mice were significantly lower than those of 6-month-old mice, the former were 80.7% and 64.9% 80.5% and 67.9%. The 18-month-old and 24-month-old VE treatment groups showed a significant improvement in glucose utilization and mitochondrial energy metabolism, most notably in the 18-month-old group, 94.7% and 97.3% of the normal controls, respectively. The results suggest that aging has a significant negative impact on KC glucose utilization and mitochondrial energy metabolism, and VE has a good preventive effect on this effect.