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尼古丁胺胺 рибоoside 通过保护线粒体缓解由慢性大脑低流引起的脑功能障碍

Lina Wang¹, Tianchan Peng¹, Jieping Deng²

¹Department of Neurology, The First Affiliated Hospital of Jinan University, Guangzhou 510632, China; Department of Microbiology and Immunology, School of Medicine, Institute of Geriatric Immunology, Jinan University, Guangzhou 510632, China.

Biochemical pharmacology

|May 9, 2024

概括

尼古丁胺基核酸 (NR) 补充剂改善了慢性大脑低 perfusion (CCH) 的老鼠的认知功能和大脑健康. NR增加了NAD+水平,保护了神经元,并增强了线粒体功能,为血管痴呆症治疗提供了潜力.

科学领域:

神经科学是一个神经科学.
生物化学生化学
药理学药理学是指药理学的学科.

背景情况:

慢性脑性低输液 (CCH) 会导致血管性痴呆症 (VaD),有效治疗方法有限.
尼古丁胺胺氨基二核酸 (NAD+) 补充显示在神经退行性疾病中具有神经保护作用.
尼古丁胺胺 рибоoside (NR),一个NAD+前体,提供了潜在的认知增强,并具有有利的生物利用性.

研究的目的:

在CCH的老鼠模型中研究NR补充剂的神经保护作用.
阐明NR在缓解CCH诱导的大脑损伤中的作用的潜在机制.

主要方法:

患有CCH的老鼠接受了NR (每天400毫克/公斤) 3个月.
评估认知功能,大脑氧化,海马神经元完整性和树突脊柱密度.
利用RNA测序,电子显微镜和蛋白质检测来分析分子机制.

主要成果:

补充NR增加了血液和脑组织中的NAD+水平.
在CCH大鼠中改善了认知功能和大脑氧化能力.
减少海马神经元损失,保持树突脊柱密度,并通过减轻裂变和自性损害来维持线粒体完整性.

结论:

补充NR证明了对CCH诱导的认知障碍的显著神经保护潜力.
通过提高NAD+水平,支持线粒体健康,改善自,NR可以发挥其益处.
这些发现支持NR作为血管痴呆症的有希望的治疗候选者.

关键词:

自自是一种自的过程.慢性大脑低 perfusion 的情况.线粒体中的线粒体.尼古丁胺胺腺因二核酸 (NAD) 是一种血管痴呆症是一种精神疾病.尼古丁胺胺 рибоoside (NR) 的使用

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