首页|抗衰延年方对衰老大鼠学习记忆及细胞凋亡相关因子Bel-2、Bax表达的影响

抗衰延年方对衰老大鼠学习记忆及细胞凋亡相关因子Bel-2、Bax表达的影响

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目的 通过观察抗衰延年方对衰老大鼠细胞凋亡相关因子Bel-2、Bax表达的影响,探讨抗衰延年方延缓衰老的可能机制.方法 健康SD雄性大鼠40只,将其随机分为正常组、衰老模型组、中药组和吡拉西坦组;正常组不做任何处理,衰老模型组、中药组和吡拉西坦组每日颈背部皮下注射D-半乳糖500 mg/kg,连续注射30 d;经过30 d治疗后以Morris水迷宫进行大鼠行为学测试后取材应用原位杂交法检测其Bel-2 mRNA、Bax mRNA表达.结果 与正常组比较,模型组大鼠行动迟缓,逃避潜伏期增多(P<0.05),Bel-2 mRNA的表达降低(P<0.05),Bax mRNA的表达增高(P<0.05);与模型组相比,中药组大鼠活力增强,逃避潜伏期时间减少(P<0.05),Bel-2 mRNA的表达增强(P<0.05),Bax mRNA的表达降低(P<0.05).结论 抗衰延年方可改善衰老大鼠空间学习记忆能力,其机制可能与其上调抑制细胞凋亡因子Bc12表达,下调促凋亡关键因子Bax表达有关.
Effects of Anti-aging and Life-prolonging Prescription on the Expression of Learning and Memory and Apoptosis-related Factors Bcl-2 and Bax in Aging Rats
Objective:To study the effect of Anti-aging and Life-prolonging Prescription on the expression of apoptosis-related factors Bel-2 and Bax in aging rats,and to explore the possible mechanism of the prescription.Methods:40 healthy SD male rats were randomly divided into normal group,aging model group,TCM group and pi-racetam group.The normal group was not treated,and the aging model group,TCM group and piracetam group were injected with 500 mg/kg D-galactose subcutaneously daily on the neck and back for 30 days.After 30 days of treat-ment,Morris water maze was used to conduct behavioral tests on the rats,and Bel-2 mRNA and Bax mRNA expres-sion were detected by in situ hybridization.Results:Compared with the rats in the normal group,the rats in the mod-el group acted slowly,the escape latency increased(P<0.05),the expression of Bel-2 mRNA decreased(P<0.05),and the expression of Bax mRNA increased(P<0.05).Compared with that of the model group,the activity of rats in the TCM group increased,the escape latency time decreased(P<0.05),the expression of Bcl-2 mRNA increased(P<0.05),and the expression of Bax mRNA decreased(P<0.05).Conclusion:Anti-aging and Life-prolonging Prescription can improve the spatial learning and memory ability of aging rats,and its mechanism may be related to the up-regulation of the expression of anti-apoptotic factor Bc12 and the down-regulation of key pro-apoptotic factor Bax.

Anti-aging and Life-prolonging PrescriptionAgingIn Situ HybridizationBel-2/BaxRat

李志亮、周敏、唐中生、蒙潇、王佑乾、韦杰尹

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贵州中医药大学,贵州贵阳 550025

抗衰延年方 衰老 原位杂交法 Bcl-2/Bax 大鼠

2020年贵州省校级大学生创新创业训练计划项目

2020-120397

2024

云南中医中药杂志
云南省中医中药研究院,云南省中医药学会

云南中医中药杂志

影响因子:0.598
ISSN:1007-2349
年,卷(期):2024.45(9)
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