在早产新生儿中,中央自主网络和心率变化
Kelsey Christoffel1,2, Josepheen De Asis-Cruz3, Rathinaswamy B Govindan4
1Developing Brain Institute, Children's National Hospital, Washington, District of Columbia, USA, kchristoff@childrensnational.org.
Developmental neuroscience
|February 6, 2024
概括
这项研究揭示了早产婴儿,特别是男性早期的大脑与心脏的联系. 心率模式可能有助于识别男性有神经发育问题的风险.
科学领域:
- 神经科学是一个神经科学.
- 新生儿医学 新生儿医学
- 心脏病学 心脏病学
背景情况:
- 中央自主网络 (CAN) 调节脑心相互作用,但尚未在早产新生儿中进行研究.
- 心率变化 (HRV) 反映了CAN输出,是自主功能的关键指标.
- 休息状态功能性MRI (rsfMRI) 允许对大脑网络进行表征.
研究的目的:
- 用HRV和rsfMRI研究早产新生儿的大脑与心脏的关系.
- 在这个群体中描述正在发展中的中央自治网络 (CAN).
- 探索大脑-心轴发育中的潜在性别差异.
主要方法:
- 早产新生儿在预产期 (≥37周PMA) 接受了rsfMRI,同时记录HRV.
- 基于种子的rsfMRI确定了CAN感兴趣的区域 (ROI) 来评估功能连接 (CANconn).
- 分析了HRV和CANconn之间的相关性,并根据性别和并发症对子组进行了分析.
主要成果:
- 在约20%的CAN连接中观察到HRV和CANconn之间的显著相关性.
- 两个模式出现了:增加HRV与更强的边缘CANconn,和更强的先性CANconn与受损的HRV成熟.
- 这些模式在男性早产新生儿中更为明显.
结论:
- 这项研究提供了脑心关系的第一个证据,以及在早产新生儿中出现的CAN.
- 这些发现表明,男性早产婴儿的脑心轴可能更容易受到伤害.
- HRV签名可以作为一种非侵入性工具来识别神经发育障碍的风险男性.
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