在自身免疫疾病患者和健康人群之间,应激反应轴的激活是否有所不同?
Eva Montero-López1, María Isabel Peralta-Ramírez2,3, Norberto Ortego-Centeno4,5,6
1Department of Evolutionary Psychology, University of Granada, Granada, Spain.
概括
患有自身免疫性疾病的患者表现出下丘脑-垂体-上腺 (HPA) 轴对压力反应的改变. 这项研究在患有全身性红斑狼,Sjögren的妇女中发现了皮质醇分泌模式的特定差异.
科学领域:
- 内分泌学 在内分泌学.
- 免疫学 免疫学 免疫学
- 心理神经内分泌学心理学
背景情况:
- 下垂体-垂体-上腺 (HPA) 轴调节压力反应.
- 关于HPA轴在自身免疫性疾病中的活性之前的研究产生了相互矛盾的结果.
- 了解HPA轴的功能对于管理自身免疫性疾病中与压力相关的影响至关重要.
研究的目的:
- 研究自身免疫性疾病患者和健康个体之间HPA轴活性和应激反应的差异.
- 为了在不同自身免疫疾病中比较HPA轴对心理压力因素的反应.
- 分析白天皮质醇模式及其与自身免疫性疾病中的心理变量之间的关系.
主要方法:
- 招募97名女性:37名健康 (HW),21名患有全身性红斑狼 (SLE),21名患有肖格伦综合征 (SS) 和18名患有全身性硬化症 (SSc).
- 通过皮肤导电性和唾液皮质醇水平评估HPA轴响应在标准化压力任务后.
- 测量白天皮质醇度 (24小时内5个样本) 和管理心理问卷.
主要成果:
- 在应激挑战期间,在唾液皮质醇分泌中观察到显著的时间 × 群体相互作用效应 (p = 0.003).
- 健康的女性表现出正常的HPA轴激活;SS和SLE组显示出模糊的反应;SSc组显示出类似的激活,但改变了恢复.
- 与健康女性相比,SSc和SLE组的每日皮质醇总产量 (AUCg) 显著更高 (p = 0.001,p = 0.004).
结论:
- 与健康个体相比,患有自身免疫性疾病的患者对压力表现出明显的HPA轴反应.
- 改变HPA轴活动,特别是SLE和SSc中皮质醇总产量的增加,可能会加剧这些条件下压力的影响.
- 这些发现突显了压力和自身免疫病理生理学之间的复杂相互作用,表明了潜在的治疗点.
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