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视网膜质细胞内状层,白质超强度,以及它们与老年人的认知相互作用
Ruilin Wang1, Xinmao Wu2, Zengyi Zhang2
1Ophthalmology Department, West China Hospital, Sichuan University, Chengdu, China.
Frontiers in aging neuroscience
|November 30, 2023
概括
光学连贯断层扫描 (OCT) 测量了视网膜神经纤维层 (RNFL) 和质细胞内状层 (GCIPL) 厚度,以及白质超强度 (WMH),影响了老年人的认知功能. 无论是GCIPL稀释还是WMH负担都与海马体积的减少有关.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 放射学 放射学是一门学科.
背景情况:
- 老年人的认知障碍 (CI) 是一个越来越令人担忧的问题.
- 脑小血管疾病 (CSVD) 标志物,包括白质超强度 (WMH),与认知能力下降有关.
- 光学连贯断层扫描 (OCT) 允许对视网膜层进行体内评估,这些层可能反映神经退行过程.
研究的目的:
- 研究OCT衍生的视网膜参数和WMH负担与老年成人队列的认知测量之间的关系.
- 探索视网膜稀释和WMH在认知结果,特别是海马体积之间的潜在相互作用.
主要方法:
- 一项涉及老年人的观察性研究,这些老年人接受了综合的神经心理测试,3-T脑MRI和OCT成像.
- 根据STRIVE标准,在MRI上评估了CSVD标记物 (缺陷,CMB,WMH,EPVS).
- 视网膜神经纤维层 (RNFL) 和质细胞内状层 (GCIPL) 的厚度使用OCT.
主要成果:
- 与非认知障碍患者相比,CI的老年人表现出明显较低的RNFL和GCIPL厚度和减少的海马体积.
- RNFL和GCIPL厚度与MoCA分数正相关.
- 经过对共变量进行调整后,GCIPL厚度,总WMH,周周结膜WMH (PWMH) 和深层WMH (DWMH) 与海马体积有关.
- 观察到GCIPL厚度和WMH (总和PWMH) 之间有关海马体积的显著相互作用.
结论:
- 在老年人中,GCIPL的稀薄和更高的WMH负担,特别是PWMH,与海马体积的减少有关.
- 同时出现GCIPL稀释和显著的WMH负担的老年人更容易受到亚临床认知衰退的影响.
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