天泰1号对自发阿尔茨海默病模型学习记忆功能的影响

背景药物治疗早、中期阿尔茨海默病患者已证实有一定的疗效,可延缓其进展.目的观察天泰1号对自发阿尔茨海默病模型学习记忆功能的影响.设计随机对照实验.单位深圳市中西医结合研究所.材料实验在深圳市中西医结合临床研究所二级动物实验室完成.实验动物为昆明种小鼠.方法从21个月龄昆明种小鼠筛选出自发阿尔茨海默病(记忆障碍)鼠52只，随机分为4组即老年痴呆组、西药对照组、天泰1号6.80 g/kg组、天泰1号20.41 g/kg组，另设13只老年学习记忆正常鼠为老年正常组.西药对照组给以Hydergine 0.6 mg/kg，天泰1号6.80 g/kg，20.41 g/kg组分别予正交优化的天泰1号方6.80 g/kg及20.41 g/kg，以上均研配成0.5 mL液体灌胃给药，连续60 d，老年正常组和老年痴呆组均灌以等量双蒸水.用跳台实验检测学习记忆成绩，比较各组的学习错误次数、记忆错误次数、学习训练逃避潜伏期和记忆测试安全平台潜伏期.主要观察指标天泰1号对自发性老年痴呆鼠学习记忆的改善作用.结果实验过程中实验动物无脱失，均进入结果分析.天泰1号6.80 g/kg组，20.41 g/kg组的学习、记忆错误次数均小于老年痴呆组(5.08±2.18，3.77±1.48,9.31±3.65；1.85±121，1.54±0.88,4.27±2.58)，且天泰1号6.80 g/kg组的学习、记忆错误次数多于天泰1号20.41 g/kg组；天泰1号6.80 g/kg组，20.41 g/kg组的学习训练逃避潜伏期小于老年痴呆组，记忆测试安全平台潜伏期大于老年痴呆组(18.9±7.5)，(19.9±5.9)，(33.7±9.3)s；(91.7±32.0)，(101.5±40.9)，(43.6±20.7)s]，且天泰1号6.80 g/kg组的学习、记忆测试安全平台潜伏期小于天泰1号20.41 g/kg组.结论自发阿尔茨海默病模型小鼠有明显的智能行为障碍，天泰1号可显著改善其学习记忆障碍，其作用呈现一定的量效相关关系.

Influence of tiantai No. 1 recipe on learning and memory function of spontaneous Alzheimer disease models

BACKGROUND: The early and medium medication has been proved to have a certain effect to patients with Alzheimer disease, can delay its development.OBJECTIVE: To investigate the effect of No. 1 recipe on learning and memory function of spontaneous Alzheimer disease models.DESIGN: A randomized and controlled trial.SETTING: Shenzhen City Institute of Integration of Traditional Chinese and Western Medicine.MATERIALS: The experiment was completed at the grade Ⅱ Laboratory of Shenzhen City Institute of Integration of Traditional Chinese and Western Medicine. The experimental animals were mice of Kunming strain.METHODS: Totally 52 Kunming mice, aged 21 months, with spontaneous Alzheimer disease (memory impairment) were chosen, and at random divided into 4 groups: senile dementia, western drug control, tiantai No. 1recipe 6.80 g/kg and 20.41 g/kg groups; besides 13 mice with normal learning and memory power were chosen as normal senile group. Hydergine 0.6 mg/kg was given for mice in western drug control group, tiantai No. 1recipe (orthogonally optimized) 6.80 g/kg and 20.41 g/kg were respectively given for mice in tiantai No. 1 recipe 6.80 g/kg and 20.41 g/kg groups.The medicines above were all prepared into 0.5 mL solution and given by garage, for consecutive 60 days. The mice in normal senile and senile dementia groups were given double distilled water of the same volume. The learning memory power was tested by jumping stand, comparing the numbers of learning error and memory error, latent escaping periods of learning training and latent safe platform of memory test.MAIN OUTCOME MEASURES: The improving effect of tiantai No. 1recipe on learning and memory function of spontaneous Alzheimer disease mice.RESULTS: All animals involved in the trial entered the final result analysis without any loss. The error numbers of learning and memory in tiantai No. 1 recipe 6.80 g/kg and 20.41 g/kg groups were smaller than that in senile dementia group (5.08±2.18, 3.77±1.48, 9.31±3.65; 1.85±1.21, 1.54±0.88,4.27±2.58), and the error number of learning in tiantai No. 1 recipe 6.80 g/kg group was more than that in tiantai No. 1 recipe 20.41 g/kg group. The escape latent period of learning training was smaller than that in the senile dementia group and the safe platform latent period of memory in tiantai No. 1 recipe 6.80 g/kg and 20.41 g/kg groups were longer than that in senile dementia group (18.9±7.5), (19.9±5.9), (33.7±9.3); (91.7±32.0),(101.5±40.9), (43.6±20.7)s], and the safe platform latent period of memory in tiantai No. 1 recipe 6.80 g/kg group was smaller than that in 20.41 g/kg group.CONCLUSION: There was obvious intellectual disturbance in spontaneous Alzheimer disease mice, tiantai No. 1 recipe can remarkably improve their learning and memory impairments, with a relationship of dose-effect.