从急性压力到长期失调:在经过修改的SPS&S模型中,长期后压力时期血液和激素参数的变化
Darya I Gonchar1, Tatiana A Shmigol1, Dmitri N Lyakhmun1
1Scientific Testing Center, Institute of Pharmacy and Medicinal Chemistry, Federal State Autonomous Educational Institution of Higher Education «N.I. Pirogov Russian National Research Medical University», Ministry of Health of the Russian Federation, Ostrovityanova, 1-6, 117513 Moscow, Russia.
Biomedicines
|February 27, 2026
概括
这项研究开发了一种经过修改的动物模型,用于创伤后应激障碍 (PTSD),使用一种新的压力协议. 该模型可靠地复制了老鼠的长期PTSD行为和生理变化.
科学领域:
- 神经科学是一个神经科学.
- 动物模型 动物模型
- 压力研究 压力研究
背景情况:
- 现有的创伤后应激障碍 (PTSD) 动物模型复杂,结果不一致.
- 需要一种精细的PTSD模型来反映该疾病的临床进展.
研究的目的:
- 为PTSD动物模型开发一个修改后的单一长期压力与后续压力 (SPS&S) 协议.
- 将行为和生理参数纳入准确的PTSD回顾.
- 评估应激反应的灭绝和长期生物标志物的稳定性.
主要方法:
- 在80只雄性Wistar大鼠中使用了经过修改的SPS&S协议,并进行了压力提醒阶段.
- 在压力后4-5周进行行为,血液学 (白细胞,血红蛋白,血红素) 和荷尔蒙 (皮质,ACTH,上腺素) 评估.
- 在28天内观察动物,以评估PTSD标志物的稳定性.
主要成果:
- 修改后的SPS&S模型在25%的动物中诱导了类似PTSD的表型.
- 创伤后应激障碍组表现出持续的行为障碍 (增加焦虑).
- 观察到显著的血液学 (中性白细胞瘤) 和内分泌失调 (降低皮质,ACTH,上腺素).
结论:
- 修改后的SPS&S模型是研究长期压力后果的有效工具.
- 这种模型准确地复制了类似PTSD的表型,在28天内具有稳定的生物标志物.
- 该模型的一致性有助于研究PTSD病理生理学和潜在的治疗方法.
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