- 作者: Tzeng Tsai-Teng, Chen Chin-Chu, Lee Li-Ya, Chen Wan-Ping, Lu Chung-Kuang, Shen Chien-Chang, Huang F. Chi-Ying, Chen Chien-Chih and Young-Ji Shiao
- 作者服務機構: Institute of Biopharmaceutical Science, National Yang-Ming University, Taipei 112, Taiwan, Republic of China
- 中文摘要: --
- 英文摘要:
Background
The fruiting body of Hericium erinaceus has been demonstrated to possess anti-dementia activity in mouse model of Alzheimer’s disease and people with mild cognitive impairment. However, the therapeutic potential of Hericium erinaceus mycelia on Alzheimer’s disease remains unclear. In this study, the effects of erinacine A-enriched Hericium erinaceus mycelia (HE-My) on the pathological changes in APPswe/PS1dE9 transgenic mouse model of Alzheimer’s disease are studied.
Results
After a 30 day oral administration to 5 month-old female APPswe/PS1dE9 transgenic mice, we found that HE-My and its ethanol extracts (HE-Et) attenuated cerebral Aβ plaque burden. It’s worth noting that the attenuated portion of a plaque is the non-compact structure. The level of insulin-degrading enzyme was elevated by both HE-My and HE-Et in cerebral cortex. On the other hand, the number of plaque-activated microglia and astrocytes in cerebral cortex and hippocampus were diminished, the ratio of nerve growth factor (NGF) to NGF precursor (proNGF) was increased and hippocampal neurogenesis was promoted after these administrations. All the mentioned benefits of these administrations may therefore improve the declined activity of daily living skill in APPswe/PS1dE9 transgenic mice.
Conclusions
These results highlight the therapeutic potential of HE-My and HE-Et on Alzheimer’s disease. Therefore, the effective components of HE-My and HE-Et are worth to be developed to become a therapeutic drug for Alzheimer’s disease. - 中文關鍵字: --
- 英文關鍵字: Alzheimer’s disease, APPswe/PS1dE9 transgenic mice, Amyloid β, Neurogenesis, Erinacine A-enriched Hericium erinaceus mycelia, Insulin-degrading enzyme