Effects of EI injection on Brain Energy and PI3K/AKT Signaling Pathway in IBO Basal Nucleus Microinjected with Dementia Model Rats
- VernacularTitle:EI注射液对鹅膏蕈氨酸基底核微量注射痴呆模型大鼠ATP/AMP及PI3K/AKT信号通路的影响
- Author:
Peng XIA
1
,
2
;
Hang ZHENG
;
Lixia QIN
;
Jiangping WEI
;
LiJuan GAO
;
Chongyang SHEN
;
Shijun XU
Author Information
- Keywords: EI injection; brain energy; ATP/AMP; insulin; PI3K/AKT signal pathway
- From: World Science and Technology-Modernization of Traditional Chinese Medicine 2018;20(12):2173-2179
- CountryChina
- Language:Chinese
- Abstract: Objective: To investigate the effects of EI injection on learning and memory ability and brain energy of two-way Meynert basal injection of Ibotenic acid (IBO) dementia model rats. Methods: A rat model of dementia wasestablished by bilateral meynert basal injection of IBO. After 8 weeks of EI injection, Morris water maze was used todetect the learning and memory ability of rats. Congo red staining was used to observe the deposition of Aβ plaque inhippocampal CA1 and cortical areas of rats. The changes of ATP, ADP and AMP in brain tissue of each group weredetermined by HPLC. The content of insulin in rat brain tissue was detected by ELISA kit. The expression of key proteinin PI3K/AKT signaling pathway was detected by Western blot. Results: Compared with the sham operation group, theescape latency of the model group was significantly prolonged, the number of entering the platform, the time andpercentage of crossing the platform quadrant decreased significantly (P ＜ 0.05); Aβ plaque deposition was observed inthe hippocampus and cortex; ATP/AMP ratio and insulin content were significantly decreased (P ＜ 0.05); brain tissue PI3 K and AKT protein were low expression (P＞ 0.05) . After intervention with EI injection, the escape latency of themodel rats was significantly shortened, the number of entering the platform and the time of crossing the platform quadrantincreased significantly (P ＜ 0.05); the hippocampus and cortex red staining was alleviated; the brain tissue ATP/AMPratio and insulin content increased significantly (P ＜ 0.05) . Conclusion: EI injection can improve the learning andmemory function of IBO-induced dementia model rats, which is related to the improvement of brain energy.
