在早期3xTg-AD小鼠中,L-乳酸盐的使用改善了突触可塑性和认知能力
Yaxin Wang1, Jinfeng Zhao1, Li Zhao2
1School of Physical Education, Shanxi University, Taiyuan 030006, China.
International journal of molecular sciences
|February 26, 2025
概括
外源L-乳酸盐补充恢复了早期阿尔茨海默病 (AD) 模型中的突触可塑性和认知功能. 这种疗法通过增强突触密度和大脑中的分子标记物来改善记忆和学习.
科学领域:
- 神经科学是一个神经科学.
- 代谢神经科学 代谢神经科学
- 神经退行性疾病 神经退行性疾病
背景情况:
- 阿尔茨海默病 (AD) 的特点是突触可塑性受损和认知缺陷.
- 这些功能障碍可能源于代谢失调,特别是有氧糖溶解受损.
- 乳酸盐是有氧糖解的产物,在突触可塑性和记忆形成中起着至关重要的作用.
研究的目的:
- 研究外源L-乳酸盐补充剂在早期AD模型中改善突触功能障碍和认知缺陷的潜力.
- 评估L-乳酸盐对AD小鼠乳酸盐水平,突触可塑性,认知功能和分子标记物的影响.
主要方法:
- 实验性AD小鼠 (3xTg-AD) 接受了全身L-乳酸盐的治疗.
- 测量包括海马和脑脊液 (CSF) 乳酸水平,行为评估 (空间学习和记忆),电生理学记录 (长期潜能 - LTP),突触的超结构分析和突触标记分子分析 (SYP,ARC).
主要成果:
- 补充L-乳酸盐恢复了AD小鼠的生理乳酸盐度.
- 慢性L-乳酸盐治疗显著改善了空间学习和记忆.
- 电生理学显示LTP增强,而超结构分析显示突触密度增加和突触形态改善.
- 分子分析表明,SYP的上调和ARC的下调.
结论:
- 外源L-乳酸盐有效地恢复了早期AD的突触可塑性和认知功能.
- 乳酸通过行为,结构和分子层面的多模式改善而起作用.
- 乳酸补充剂代表了早期阿尔茨海默病的潜在治疗策略.
关键词:
AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD ADD was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was在L-乳酸盐中.认知 认知 认知突触性可塑性 突触性可塑性相关概念视频
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