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1.深圳市罗湖区人民医院,广东 深圳 518020;
2.深圳市罗湖区中医院,广东 深圳 518001;
3.甘肃中医药大学,兰州 730000;
4.定西市第二人民医院,甘肃 定西 743000
吴红彦,教授,博士生导师,从事方证相关理论及敦煌医学研究与创新研究,E-mail: wu.hy@163.com
收稿日期:2018-08-22,
网络出版日期:2018-11-27,
纸质出版日期:2019-03-05
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吴红彦, 马春林, 崔淑梅, 等. 黑逍遥散对AD模型小鼠海马区A
Hong-yan WU, Chun-lin MA, Shu-mei CUI, et al. Effect of Hei Xiaoyaosan on Expressions of Aβ1-42, GSK-3β, NEP, IDE in Hippocampus Area of Alzheimer's Dementia Mice[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(5): 36-42.
吴红彦, 马春林, 崔淑梅, 等. 黑逍遥散对AD模型小鼠海马区A
Hong-yan WU, Chun-lin MA, Shu-mei CUI, et al. Effect of Hei Xiaoyaosan on Expressions of Aβ1-42, GSK-3β, NEP, IDE in Hippocampus Area of Alzheimer's Dementia Mice[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(5): 36-42. DOI: 10.13422/j.cnki.syfjx.20190502.
目的:
2
研究黑逍遥散对阿尔茨海默症(Alzheimer disease
AD)小鼠海马区
β
淀粉样多肽1-42(
β
-amyloid 1-42 peptide
A
β
1-42
),糖原合成酶激酶-3(glycogen synthase kinase-3
β
GSK-3
β
),脑啡肽酶(neprilysin
NEP),胰岛素抵抗酶(insulin-degrading enzyme
IDE)表达的影响。
方法:
2
42只APP/PSI双转基因小鼠称体质量后,按随机原则分为4组,分别为模型组,阳性药组(盐酸多奈哌齐,3.25mg·kg
-1
),黑逍遥散高、低剂量组(6
3g·kg
-1
)。10只同月龄、同种系的野生型C57BL/6J小鼠为正常组。连续灌胃12周后,Morris水迷宫予以行为学检测,苏木素-伊红(HE)染色观察海马神经元的形态改变,采用免疫组化技术分别检测小鼠海马区A
β
1-42
,GSK-3
β
,NEP
IDE蛋白的表达。
结果:
2
治疗3个月后,与正常组比较,AD模型组小鼠,逃避潜伏期均延长,跨原平台次数减少(
P
<
0.01),小鼠海马区A
β
1-42
,GSK-3
β
蛋白阳性表达显著增强,NEP与IDE蛋白阳性表达显著减弱(
P
<
0.01),HE染色显示AD模型小鼠海马神经细胞损伤严重;与模型组比较,用药各组小鼠的逃避潜伏期均显著缩短、跨原平台次数均显著增加(
P
<
0.05,
P
<
0.01),小鼠海马区A
β
1-42
,GSK-3
β
蛋白阳性表达显著减弱,NEP与IDE蛋白阳性表达显著增强(
P
<
0.05,
P
<
0.01),HE染色显示各治疗组小鼠海马神经细胞损伤减轻。
结论:
2
黑逍遥散能够显著改善AD小鼠的学习记忆能力,可能与调节A
β
在海马区的异常沉积和降解作用等方面来减轻AD小鼠认知能力损伤有关。
Objective:
2
To observe the effect of Hei Xiaoyaosan on expressions of
β
-amyloid 1-42 peptide(A
β
1-42
)
glycogen synthase kinase-3
β
(GSK-3
β
)
neprilysin(NEP)
insulin-degrading enzyme(IDE) in the hippocampus area of Alzheimer's dementia mice.
Method:
2
After weighing
42 APP/PSI bivalent transgenic mice were randomly divided into 4 groups: 10 mice in the model group
10 mice in the positive drug control group
11 mice in the high-dose Hei Xiaoyaosan group
and 11 mice in the low-dose Hei Xiaoyaosan group; 10 wild C57BL/6J mice of the same age and strain were used for negative control group. Drugs were administered to mice by gavage once a day for 12 weeks. Then the behavior of all the mice were detected by Morris water maze
the morphological changes in hippocampal neurons were observed by hematoxylineosin(HE) staining
the expressions of A
β
1-42
GSK-3
β
NEP and IDE proteins in hippocampus were detected by immunohistochemistry.
Result:
2
After 3 months of treatment
compared with negative control groups
the average escaping latency periods prolonged significantly
and the number of cross-platform was decreased significantly in model group (
P
<
0.01)
the expressions of A
β
1-42
and GSK-3
β
proteins in model mice hippocampus were significantly increased (
P
<
0.01)
the expressions of NEP and IDE proteins in model mice hippocampus were significantly decreased (
P
<
0.01)
suggesting serious damage of hippocampal nerve cells in model group mice according to HE staining; compared with the model group
the escape latency of drug groups were significantly shortened
and the number of crossing platforms was significantly increased (
P
<
0.05)
the expressions of A
β
1-42
and GSK-3
β
proteins in the hippocampus of drug groups were significantly decreased (
P
<
0.01)
the expressions of NEP and IDE proteins in the hippocampus of drug groups were significantly increased (
P
<
0.05
P
<
0.01)
suggesting the alleviation in the damage of hippocampal nerve cells in drug groups.
Conclusion:
2
Hei Xiaoyaosan can significantly improve the learning and memory abilities of AD mice
which may be related to the reduction of cognitive impairment in AD mice by regulating abnormal deposition and degradating A
β
in the hippocampus.
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