动态调节血压和认知功能
Joshua Sweigert1, Tara Gruenewald2, Margie Lachman3
1Division of Interventional Radiology, Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles CA.
节奏性血压变化 (BPV) 与更好的认知功能有关. 低频BPV (LF-BPV) 与执行功能和记忆有积极的相关性,这表明改善大脑血流和废物清除支持认知健康.
科学领域:
- 心血管生理学心血管生理学
- 神经科学是一个神经科学.
- 认知科学 认知科学
背景情况:
- 血压 (BP) 的变化提供了超出平均BP的洞察力.
- 对诊所访问和24小时监测的变化与健康风险和认知能力下降有关.
- 节拍对节拍的BP变化,特别是低频BPV (LF-BPV),在认知影响方面不太了解.
研究的目的:
- 研究低频血压变化 (LF-BPV) 与认知表现之间的关联.
- 在大型队列中,检查LF-BPV与情节性记忆和执行功能的关系.
主要方法:
- 1953年,来自美国中年研究的参与者完成了认知测试 (BTACT).
- 连续的,非侵入性血压是使用Finometer记录的.
- 基于福利埃的光谱分析量化了LF-BPV;线性回归分析了与认知指数的关联.
主要成果:
- 抽缩性 (LF-SBPV) 和散缩性 (LF-DBPV) LF-BPV都显示出与执行功能 (EFF) 和情节性记忆 (EMF) 的积极关联.
- 在对年龄,性别,教育和收入进行调整后,这些关联仍然很重要.
- 对LF-DBPV的发现与LF-SBPV的发现相似.
结论:
- 较高的LF-BPV与更好的认知功能有关,包括执行功能和情节性记忆.
- 这表明LF-BPV可能会增强大脑血流和废物清理机制.
- 通过淋巴和近动脉排水通道改善大脑健康可能是观察到的认知益处的基础.
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