AT1受体调解寒冷压力和安非他胺对神经认知性能的影响
Natalia Andrea Marchese1,2, Victoria Belén Occhieppo1, Sol Micaela Angulo1
1Instituto de Farmacología Experimental Córdoba (IFEC-CONICET), Departamento de Farmacología "Otto Orsingher", Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
Naunyn-Schmiedeberg's archives of pharmacology
|October 20, 2025
概括
之前的安非他胺暴露改变了对寒冷压力的认知反应. 使用坎德沙坦阻断血管激素II型1受体 (AT1-R) 阻止了这些神经认知变化,突出了AT1-R.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 环境健康 环境健康
背景情况:
- 大脑 ангиотензин II (Ang II) 通过AT1受体影响着catecholamine的神经传递,影响神经认知.
- 胺 (Amph) 暴露会导致认知缺陷,有时通过随后的挑战被揭示出来.
- 在暴露于安非他胺后,AT1-R在调解对环境压力因素的神经认知反应中的作用尚不清楚.
研究的目的:
- 调查先前的安非他胺暴露是否会改变对寒冷压力的神经认知反应.
- 为了确定AT1-R在这些修饰反应中的参与.
主要方法:
- 雄性Wistar大鼠被用AT1-R阻塞剂 (candesartan) 或载体治疗,然后用安非他命或盐水治疗.
- 在禁食期后,动物接受了寒冷压力 (4°C4小时) 和认知测试 (工作记忆和长期记忆).
- 测量了血液中的上腺素和葡萄糖水平.
主要成果:
- 寒冷压力抵消了安非他命诱导的工作记忆缺陷.
- 之前的安非他命暴露减少了寒冷压力对长期记忆巩固的影响.
- 接受氨酸治疗的老鼠在压力后出现上腺素和葡萄糖的升高.
- 坎德沙坦的AT1-R阻断阻止了所有安非他胺诱导和与寒冷挑战相关的改变.
结论:
- 胺暴露会诱导神经适应,影响对各种刺激的认知反应,包括寒冷等环境刺激.
- AT1-R在调解这些神经适应性变化方面发挥着至关重要的作用.
- 向AT1-R可能为管理因药物暴露和压力引起的认知改变提供治疗潜力.
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