艾炷灸对D-半乳糖衰老小鼠大脑组织抗氧化和学习记忆的影响

目的:观察艾炷灸对D-半乳糖衰老小鼠大脑组织抗氧化与学习记忆的影响。方法:3月龄昆明雄性小鼠72只,随机区组分为6组:生理组、模型组、艾炷灸"足三里、悬钟"(简称艾灸1组)、艾炷灸"关元、百会"(简称艾灸2组)、电针组、尼莫地平组,每组12只。模型组及干预治疗组,连续42d颈背部皮下注射D-半乳糖;生理组连续42d颈背部皮下注射等量生理盐水,造模第13d开始干预治疗,1次/隔日,共15次。水迷宫行为测试、脑组织匀浆一氧化氮(NO)含量、一氧化氮合酶(NOS)、总超氧化物歧化酶(TSOD)及铜锌-超氧化物歧化酶(CuZnSOD)的活力检测。结果:①模型组"潜伏期"较生理组、艾灸1、2组、尼莫地平组延长(P<0.01或P<0.05),模型组"原象比"、"跨台次数"较其他各组缩短、降低(P<0.01或P<0.05);②模型组脑组织NO含量、总一氧化氮合酶(TNOS)、诱导型一氧化氮合酶(iNOS)活力较其他5组显著升高(P<0.01),其他5组脑组织NO含量、TNOS、iNOS活力比较无明显差异。模型组脑组织TSOD、CuZnSOD活力较其他5组显著降低,其他5组脑组织TSOD活力无明显差异;电针组、尼莫地平组脑组织CuZnSOD活力低于艾灸2组、艾灸1组,差异有统计学意义(P<0.01,P<0.05),其余各组间比较无差异。结论:艾炷灸可以通过提高脑组织总SOD、CuZnSOD的活力,保护脑细胞免受NO自由基损害,提高学习记忆,延缓脑组织老化。

Effects of moxa cone moxibustion on learning and memory,oxidation resistance of cerebral tissues in senile mice induced by D-galactose

Objective:To observe the influence of moxa cone moxibustion on learning and memory ability,the oxidation resistance of changes on cerebral tissue of the senile mice induced by D-galactose.Methods:72 male mice(3 months old) were randomly and equally divided into the model,the normal sodium control,the moxa cone moxibustion 1(cupoint ST36 and GB39),the moxa cone moxibustion 2(acupoint DU20 and RN4),the electroacupunctue(acupoint ST36 and GB39),the Nimodipine medicated groups.The treatment and model groups wer...