在特里尔社会压力测试中应用神经普通微分方程来分析激素动态
Christopher Parker1, Erik Nelson2, Tongli Zhang1
1Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, United States.
Frontiers in genetics
|August 16, 2024
概括
神经常规微分方程 (NODE) 和卷积神经网络 (CNN) 通过分析压力期间的下丘脑-垂体-上腺 (HPA) 轴激素动态,有效地对主要抑郁症 (MDD) 进行分类. 这种方法对一个客观的MDD生物标志物有希望.
科学领域:
- 神经科学是一个神经科学.
- 计算生物学 计算生物学
- 内分泌学 在内分泌学.
背景情况:
- 下垂体-垂体-上腺 (HPA) 轴在应激反应中起着至关重要的作用.
- 大型抑郁症 (MDD) 通常与失调的HPA轴活动有关.
- 需要用于MDD诊断的客观生物标志物.
研究的目的:
- 调查神经常规微分方程 (NODE) 对于建模HPA轴激素动态的实用性.
- 开发一种使用压力诱导的激素模式对重度抑郁症 (MDD) 的分类方法.
- 评估HPA轴应激反应作为MDD的客观生物标志物的潜力.
主要方法:
- 在Trier社会压力测试 (TSST) 期间收集的血ACTH和皮质醇数据.
- 采用NODE来建模激素动态和捕捉压力因素的影响.
- 利用来自NODE的衍生向量场作为对卷积神经网络 (CNN) 的输入,用于患者分类.
- 使用交叉验证 (CV) 程序验证模型.
主要成果:
- NODE模型成功地复制了激素变化和嵌入式压力效应.
- 结合NODE-CNN方法取得了有希望的分类结果.
- 1x1 CV产生了AUROC评分,确定了83%的非典型MDD患者和53%的健康对照.
- 2x2 CV表现出类似的强结果.
结论:
- 结合NODE和CNN提供了一种可行的方法来根据疾病状态对患者进行分类.
- 通过NODE分析的HPA轴应激反应显示了作为MDD的客观生物标志物的潜力.
- 这项研究为进一步研究精神疾病的神经内分泌生物标志物的基础.
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