脱聚合的花生皮衍生型氨酸缓解认知功能障碍,通过抑制阿尔茨海默氏病中的Aβ42聚合来缓解认知功能障碍
He Liu1, ZiYan Zhang1, XiaoQing Li1
1College of Life Sciences, Qingdao University, Qingdao 266071 China.
Food research international (Ottawa, Ont.)
|March 1, 2025
概括
从花生皮中提取的寡合性益氨酸 (OPSP) 显示出改善的生物可用性和抗氧化能力. OPSP有效地抑制了粉样β聚合,并改善了阿尔茨海默氏症患者的认知功能.
科学领域:
- 生物化学 生物化学
- 神经科学是一个神经科学.
- 食品科学 食品科学 食品科学
背景情况:
- 阿尔茨海默病 (AD) 与粉样蛋白斑块聚集有关.
- 花生皮的益氨基氨酸 (PSP) 具有抗氧化特性,但生物利用性有限.
- 脱聚合可以增强PSP的治疗潜力.
研究的目的:
- 为了优化PSP的超声波辅助性脱聚合成OPSP.
- 描述OPSP并比较其与PSP的属性.
- 为了评估OPSP在减轻AD病理方面的有效性,在体外和体内.
主要方法:
- 超声波辅助的性去聚合生成OPSP.
- 对PSP和OPSP进行物理化学分析.
- 在体外粉样蛋白-β (Aβ42) 抑制试验.
- 使用老鼠阿尔茨海默病模型进行体内研究.
主要成果:
- 优化的脱聚合产生了OPSP,其聚合度降低 (2.87).
- 与PSP相比,OPSP表现出增强的稳定性,抗氧化活性和更大的Aβ42抑制.
- 在AD大鼠中,OPSP改善了记忆力,减少了神经炎症 (IL-6,IL-1β,TNF-α),并减少了Aβ42斑块.
结论:
- 优化OPSP生产可以提高生物可用性和治疗潜力.
- OPSP有效地针对阿尔茨海默病的关键病理.
- OPSP代表了阿尔茨海默病的有希望的天然治疗剂,也是花生副产品的有价值用途.
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