多参数神经成像研究神经血管合变化在末期病患者
Wei Sun1,2, Chen Li2,3, Zhuqing Jiao4
1Department of Radiology, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, China.
Brain and behavior
|June 26, 2024
概括
神经血管合 (NVC) 在接受血液透析的末期病 (ESRD) 患者中被破坏,可能导致认知障碍. 这项研究揭示了ESRD患者的异常脑 perfusion 和连接,为新的治疗提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 腎臟病學 (nephrology) 是一種醫學專業.
- 医疗成像医学成像
背景情况:
- 末期病 (ESRD) 与认知缺陷有关.
- 潜在的机制,特别是神经血管合 (NVC) 改变,仍然不清楚.
- 了解ESRD患者的NVC变化对于开发有针对性的干预措施至关重要.
研究的目的:
- 通过评估ESRD血液透析患者与健康对照人群之间的脑输液和脑连接之间的关系来研究神经血管合 (NVC).
- 确定与ESRD患者认知缺陷相关的异常NVC的大脑区域.
- 为ESRD认知障碍的潜在预防和治疗策略提供新的见解.
主要方法:
- 纳入了45名ESRD患者和40名健康对照.
- 用蒙特利尔认知评估 (MoCA) 评估认知功能.
- 使用动脉旋转标记 (ASL) 测量脑血流 (CBF).
- 休息状态功能磁共振成像 (rs-fMRI) 与图形理论分析被用来评估大脑网络拓 (BC,Ne,DC).
- 在整个大脑和区域水平上计算NVC生物标志物 (CBF-BC,CBF-Ne,CBF-DC系数和比率).
- 曼-惠特尼U测试和斯皮尔曼的相关性分析用于统计比较,多次比较时使用FDR校正.
主要成果:
- 与对照组相比,ESRD患者的CBF-Ne (p=0.023) 和CBF-BC (p=0.035) 全球合系数显著降低.
- 在ESRD患者的33个大脑区域观察到明显更高的局部合比率 (p<0.05).
- 在几个大脑区域中发现了合比和MoCA得分之间的负相关性,即使在调整了血红蛋白和血红素水平之后.
结论:
- 扰乱神经血管合 (NVC) 是一种潜在的机制,有助于透析患者的认知障碍.
- 大脑输液和大脑连接之间的关系异常在ESRD中很明显.
- 这些发现凸显了对ESRD中NVC功能障碍及其对认知的影响的进一步研究的需要.
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