轴突能量代谢,以及对衰老和神经退行性疾病的影响
Sen Yang1,2,3, Jung Hyun Park1,2,3, Hui-Chen Lu4,5,6
1The Linda and Jack Gill Center for Biomolecular Sciences, Indiana University, Bloomington, IN, 47405, USA.
Molecular neurodegeneration
|July 20, 2023
概括
大脑衰老和神经退行性疾病与葡萄糖代谢受损和轴突功能障碍有关. 针对生物能量提供了一个有前途的神经保护策略,用于这些条件.
科学领域:
- 神经科学是一个神经科学.
- 代谢生物学代谢生物学
- 衰老研究研究 衰老研究
背景情况:
- 衰老和神经退行性疾病 (NDA) 与大脑的生物能量缺陷有关,特别是脆弱区域的葡萄糖低代谢.
- 轴突对大脑连接体完整性至关重要,其代谢需求很高,易受损伤,故障与局部生物能量失调有关.
- 轴突病变是神经退行症的早期指标,这表明轴突能量代谢在疾病发病过程中起着关键作用.
研究的目的:
- 审查葡萄糖低代谢与在衰老和NDA中连接性解体之间的相关性.
- 在不同的轴突子域中探索轴突生物能量失调的机制.
- 突出尼古丁胺氨酸二核酸 (NAD+) 稳态和质支持在轴突能量代谢和疾病进展中的作用.
主要方法:
- 人类和动物研究的文献综述关于老化中的大脑生物能学和NDAs.
- 对特定轴突区域的轴突生物能学的分析:初始段,髓化段和前突触点.
- 尼古丁胺胺氨基二核酸 (NAD+) 恒常路径的审查及其与轴突代谢的相关性.
主要成果:
- 一致的证据将葡萄糖低代谢与衰老中的连接性解体和NDA联系起来.
- 轴突生物能量失调涉及不同轴突子域内的特定机制,受活动和质支持的影响.
- 缺陷的NAD+稳态,高的神经网络能量需求和质病理加剧了轴突生物能量缺陷在衰老和NDAs.
结论:
- 针对大脑生物能量的代谢策略显示出在衰老和NDA中神经保护的潜力.
- 了解代谢脆弱性,轴心病和神经退行症之间的相互作用对于开发有效疗法至关重要.
- 未来的研究应该关注因果关系,以告知对认知衰退和神经退行性疾病的治疗干预措施.
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