在受伤暴露的女性样本中,宁- ангиотензин- алдостерон系统的活性
Sinead M Sinnott1, Robyn A Ellis2, Annmarie Khawand3
1Department of Psychiatry, Harvard Medical School, Boston, MA, USA; Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.
Psychiatry research
|June 5, 2025
概括
这项研究发现,女性的氨酸-血管氨酸-氨系统 (RAAS) 和创伤后应激障碍 (PTSD) 之间没有直接联系. 然而,RAAS活性与心血管刺激相关,雌激醇可能会提供对这些影响的保护.
科学领域:
- 神经内分泌学神经内分泌学
- 心理生理学 心理生理学
- 心血管科学 心血管科学
背景情况:
- 氨酸- ангиотензин- алдостерон系统 (RAAS) 与创伤后应激障碍 (PTSD) 和心血管疾病 (CVD) 有关.
- 在PTSD中性别差异可能涉及RAAS和雌激素,一种可能降低RAAS活动的激素.
- 以前的研究表明,在患有PTSD的个体中,RAAS活性较高.
研究的目的:
- 为了复制在PTSD中RAAS活动升高的发现.
- 调查RAAS活动,心理生理激发和创伤暴露的女性中雌激素水平之间的关联.
- 探索雌激醇在调节RAAS-PTSD关系中的潜在作用.
主要方法:
- 招募了37名患有PTSD和创伤暴露的女性参与者.
- 测量的心血管指标:心率 (HR),高频心率变化 (HF-HRV) 和血压 (BP).
- 在恐惧调节过程中通过恐惧强化惊 (FPS) 评估心理生理激发.
主要成果:
- 在PTSD和对照组之间,没有发现雷宁,阿尔多或阿尔多与雷宁比率 (ARR) 的显著差异.
- 较高的氨酸和氨与HR的增加相关;较高的氨酸与更大的FPS大小相关.
- 较高的ARR与较低的HF-HRV相关;这些关联是由雌激醇水平调节的,在低雌激醇组中效果更强.
结论:
- 这项研究没有在这个队列中复制RAAS活动和PTSD之间的直接关联.
- 研究结果表明,RAAS活动与心理生理兴奋标志物有关,可能受到雌激醇的影响.
- 雌激醇可能在RAAS和心血管功能之间的关系中发挥保护作用.
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