松动神经刺激可以改善因缺氧引起的认知障碍
Birendra Sharma1,2, Krysten A Jones1,3, Laura K Olsen1,2
1Air Force Research Laboratory, Cognitive Neuroscience, 711th Human Performance Wing, Wright-Patterson AFB, OH, United States.
Frontiers in behavioral neuroscience
|June 23, 2025
概括
神经刺激 (VNS) 在暴露于缺氧的老鼠中改善了认知功能. 此外,VNS还恢复了关键的神经热素水平,这表明对缺氧引起的认知缺陷的潜在治疗方法.
科学领域:
- 神经科学是一个神经科学.
- 生理学 生理学 生理学
背景情况:
- 低氧是一种低氧状态,由于大脑的高氧需求,严重影响认知功能.
- 神经刺激 (VNS) 显示出对认知增强的潜力,但其对缺氧诱导损伤的有效性尚未得到充分证实.
研究的目的:
- 调查VNS对接受缺氧的老鼠认知表现和神经蛋白表达的影响.
主要方法:
- 鼠被分为虚假,缺氧和VNS + 缺氧组.
- 在低氧 (8%氧气) 暴露期间应用VNS.
- 通过行为测试评估认知功能,并分析海马组织的神经生长因子 (NGF) 和脑衍生神经营养因子 (BDNF) mRNA和蛋白质水平.
主要成果:
- 缺氧损害了被动回避测试的性能,VNS的使用改善了这种情况.
- 缺氧降低了海马的NGF和BDNFmRNA水平;VNS恢复了NGFmRNA并部分增加了BDNFmRNA.
- VNS显著恢复了海马的NGF蛋白水平,而BDNF蛋白水平保持不变.
结论:
- 视觉神经系统显示出作为减轻因缺氧引起的认知缺陷的干预措施的潜力.
- VNS可能通过调节海马体中神经轮蛋白的表达来发挥其神经保护作用.
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