ABSTRACT
Endangered animal medicine is an important part of traditional Chinese medicine， which is distinctive in the treatment of diseases. At present， the rare and endangered medicinal materials such as tiger bone， rhinoceros horn， pangolin， antelope horn， bear bile are listed as national key protected animals， so their clinical application is limited， the current solution is mainly based on the ideas and methods of similar pharmacological effects， close genetic relationships， artificial breeding， and artificial synthesis to find and develop alternatives for endangered animal medicinal materials. Although artificially cultured bear bile and musk， and artificially synthesized tiger bone， bezoar and musk can solve the shortage of endangered animal medicines to a certain extent， there are still some problems such as difficult breakthroughs in breeding technology and incomplete recognition in the substitute industry. According to this， based on summarizing the existing substitutes for endangered animal medicines， our group proposed the concept of homology， homogeneity and equivalent of substitutes， and constructed a new idea to develop and evaluate substitutes by combining frontier biotechnology with multi-omics detection， so as to provide some support for protecting rare and endangered animals and solving the shortage of endangered animal medicines.
ABSTRACT
Objective: To investigate the effects of Kaixin Powder on learning and memory, ATP/AMP ratio, GABA andiNOS levels in rats with multiple infarct dementia. Methods: The rat model of multi-infarct dementia was established bymicro-thromboembolism. Morris water maze and opening experiment were used to evaluate learning and memoryfunction. The pathological changes of hippocampal CA1 area were evaluated by HE staining. The contents of ATP andAMP in brain tissue were determined by HPLC. The content of γ-aminobutyric acid and iNOS in peripheral blood weredetected by ELISA kit. Results: Compared with the rats of model group, rats of Kaixin Powder group can significantlyshorten the escape latency, increase the number of crossing platforms, Results: Compared with the model group, increasethe standing times in the opening experiment, prolong the exercise time, shorten the resting time, improve the nerve celldamage in the hippocampal CA1 area, and significantly increase the ratio of ATP/AMP of brain tissue, decreased brainGABA content and serum iNOS content (P ＜ 0.05) . Conclusion: Kaixin Powder has the effect of improving learning andmemory function and abnormal motor behavior in rats with multiple infarct dementia. The mechanism is related toreducing GABA and i NOS content in brain tissue, increasing ATP/AMP ratio in brain tissue and improving energysupply in brain tissue.
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.