文献类型：期刊文献

中文题名：黄芪与红芪提取物对衰老模型小鼠脑组织抗氧化能力和海马结构功能的影响

英文题名：Influence of Astragali Radix and Hedysari Radix Extracts on Brain Antioxidant Capability and the Hippocampus Ultrastructure in Aging Model Mice

作者：耿广琴[1];刘坤[1];夏光萍[1];王关达明[1];邵晶[1]

第一作者：耿广琴

机构：[1]甘肃中医药大学,兰州730000

第一机构：甘肃中医药大学

年份：2017

卷号：34

期号：4

起止页码：500

中文期刊名：中国现代应用药学

外文期刊名：Chinese Journal of Modern Applied Pharmacy

收录：CSTPCD;;CSCD:【CSCD_E2017_2018】；

基金：甘肃省高校中(藏)药化学与质量研究省级重点实验室开放基金(zzy-2014-04);甘肃中医药大学中青年科研基金(2305016601)

语种：中文

中文关键词：黄芪提取物;红芪提取物;抗氧化;DNA损伤;结构变化

外文关键词：Astragali Radix extracts; Hedysari Radix extracts; antioxidant; DNA dammage; morphologic changes

摘要：目的研究黄芪、红芪提取物的抗衰老作用。方法采用D-半乳糖建立小鼠衰老模型,分别灌服同剂量黄芪与红芪提取物进行抗衰老实验。UV检测脑组织T-AOC、SOD活力和MDA含量,单细胞凝胶电泳检测脑细胞DNA损伤。光镜和电镜观察其脑组织学和海马超微结构的改变。结果黄芪高剂量组,红芪中、高剂量组能显著提高衰老模型小鼠脑组织T-AOC、SOD活性,显著降低MDA含量,明显减轻DNA损伤,明显减轻海马神经元形态结构衰老。结论黄芪、红芪提取物具有明显的延缓衰老作用,其作用机制可能与提高机体抗氧化能力,减轻自由基对脑细胞DNA的损伤,维护海马区神经细胞的结构完整性,改善或延迟脑组织和神经元退行性变有关。
OBJECTIVE To study the anti-aging activity of Astragali Radix and Hedysari Radix extracts. METHODS The aging mice model was induced by D-glactose. The mice were administered intragastically with same dose of Astragali Radix and Hedysari Radix extracts. The activities of T-AOC, SOD, and the contents of MDA in brain were detected by spectrophotomete; DNA damage of brain cell was observed by single cell gel electrophoresis; morphologic changes of brain histology and hippocampus ultrastructure were observed by microscope and electron microscope. RESULTS The high dose group of Astragali Radix extracts and the middle, high dose group of Hedysari Radix extracts could significantly promote T-AOC, SOD activities, decrease MDA contents in brain, and reduce DNA damage, as well as notably relieved the aging symptoms of morphological structure in hippocampal neurons. CONCLUSION Astragali Radix and Hedysari Radix extracts can delay the aging process, and the possible mechanisms may be due to its enhancement antioxidant capability and relief the DNA damage of brain cell, maintain integrity and postpone degenerative change of hippocampal neurons.