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Neural Regulation01:37

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.

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Targeting Neuronal Fiber Tracts for Deep Brain Stimulation Therapy Using Interactive, Patient-Specific Models
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一个用于神经心脏调节的多尺度预测数字双胞胎.

Pei-Chi Yang1, Adam Rose2, Kevin R DeMarco1

  • 1Department of Physiology and Membrane Biology, University of California Davis, Davis, CA, USA.

The Journal of physiology
|August 2, 2023
PubMed
概括

一个新的多尺度模型模拟了自主神经系统对心脏的影响,预测不平衡如何导致心律失常,并指导心脏病的神经调节疗法.

关键词:
节律失常 (arrhythmia) 是一种心律失常.自主神经系统自主神经系统心脏电生理学心脏电生理学计算模型是一种计算模型.数字双胞胎是一个数字双胞胎.寄生同情的 寄生同情的同情神经系统的同情神经系统.

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科学领域:

  • 计算生物学和神经科学 计算生物学和神经科学
  • 心脏电生理学心脏电生理学
  • 系统生物学 系统生物学

背景情况:

  • 心脏功能由自主神经系统 (ANS) 调节,交感和副交感分支影响心率和收缩性.
  • 自主性失衡与心律失常和心力衰竭有关,这对理解和治疗构成了挑战.
  • 现有的模型往往缺乏捕捉复杂神经心脏相互作用所需的多尺度集成.

研究的目的:

  • 开发一个多尺度的神经心脏模型和模拟器工具.
  • 预测交感和副交感刺激对节点 (SAN) 和室内心肌的影响.
  • 建立一个数字双胞胎框架来测试神经调节疗法.

主要方法:

  • 开发了一种具有整合和发射神经元和突触动态的ANS分层模型.
  • 包含实验数据和原子模拟来进行模型参数化.
  • 在亚细胞,细胞和组织尺度上模拟自主刺激效应.

主要成果:

  • 该模型准确地复制了心脏细胞的实验性发射模式.
  • 证明了自主失衡如何诱导前节律失调的情况.
  • 显示该模型可以预测预防或终止心律失常的干预措施.
  • 利用分子动力学来模拟上腺素-β-上腺素受体相互作用.

结论:

  • 多尺度神经心脏模型作为预测心脏功能的数字双胞胎.
  • 这个框架可以指导新型神经调节疗法的高通量预测.
  • 该模型推进了对心脏健康和疾病中自主控制的理解.