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光生物调节疗法增加了3xTg-AD老年小鼠的神经干细胞池
Kevin J Johnson1,2, Kathia Johnson1, Auston Grant1
1Department of Anesthesiology, University of Texas Medical Branch, Galveston, Texas, United States of America.
PloS one
|April 22, 2025
概括
光生物调制 (PBM) 疗法对阿尔茨海默氏症 (AD) 有希望. 这项研究发现,PBM减少了有毒的tau蛋白,并在老年AD小鼠中改善了神经发生,这表明潜在的认知修复.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
- 老年学是一门学科.
背景情况:
- 目前阿尔茨海默病 (AD) 治疗侧重于粉样β (Aβ) 的去除,在减缓疾病进展方面提供有限的疗效.
- 阿尔茨海默病的认知能力下降与细胞系统的损伤有关,包括成人海马神经发生 (AHN),该神经发生在疾病早期受到损害.
- 保存的AHN与对抗AD神经病理学的认知性相关,突出显示神经发生作为治疗点.
研究的目的:
- 在小鼠模型中研究光生物调制 (PBM) 治疗对晚期阿尔茨海默病 (AD) 神经病理学的影响.
- 评估PBM在增强成人海马神经发生 (AHN) 和减轻AD相关病理方面的潜力.
主要方法:
- 老年转基因3xTg-AD小鼠 (年龄15-17个月) 用670nm的LED光光生物调节 (PBM) 或SHAM疗法治疗一个月.
- 治疗后进行了神经病理评估,以评估PBM对AD病理和神经生成的影响.
主要成果:
- 一个月的PBM治疗显著降低了3xTg-AD老年小鼠的高酸化负荷,与SHAM治疗的对照相比.
- 在老年AD小鼠模型中,PBM治疗部分挽救了成人海马神经发生 (AHN).
- 这些发现表明,PBM可以抵消AD神经病理学的关键方面.
结论:
- 光生物调制 (PBM) 显示出作为阿尔茨海默病 (AD) 的非侵入性治疗策略的潜力.
- PBM可能有助于保护成人海马神经发生 (AHN) 并减少中度至高级AD的认知功能障碍.
- 需要对阿尔茨海默症治疗的PBM进行进一步的研究.
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