在老鼠中通过RISPERIDONE调节特拉马多尔诱导的高温和环境温度
Tsuyoshi Okada1, Seiji Obi1, Manabu Takano1
1Department of Psychiatry, Jichi Medical University, Shimotsuke-Shi, Tochigi-Ken 329-0498, Japan.
Toxicology and applied pharmacology
|November 5, 2025
概括
里斯比 (RIS) 可以通过影响多巴胺水平来降低特拉马多尔 (TRA) 诱导的高温症,特别是在较低剂量时. 环境温度显著影响TRA毒性和单胺变化,这表明RIS作为特拉马多尔过量剂的潜在治疗方法.
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.
- 毒理学 毒理学 毒理学
背景情况:
- 特拉马多尔 (TRA) 过量服用可能会导致危及生命的高热症,原因是单氨基激素失调.
- 目前对TRA毒性的支持性治疗缺乏有效的药理干预措施.
研究的目的:
- 为了研究RIS和环境温度对TRA诱导的高温和中央单胺水平的影响,在老鼠模型中.
- 探索RIS潜在治疗效果背后的受体机制.
主要方法:
- 在不同的环境温度下 (18°C,23°C,28°C) 给雄性Wistar大鼠注射TRA (100 mg/kg).
- RIS (0.25或0.5毫克/公斤) 和各种受体对抗剂被使用.
- 测量了核心体温,发动机活动,以及下丘脑中血清素 (5-HT),上腺素 (NA) 和多巴胺 (DA) 的细胞外水平.
主要成果:
- 根据温度,TRA显著增加了5-HT,NA和DA水平.
- 0.25 mg/kg的RIS抑制了高热度和减少了DA升高,而0.5 mg/kg的剂量是无效的.
- 5-HT2A和D1受体对手模仿了RIS的高温抑制作用.
结论:
- RIS减轻了TRA诱导的高温症,可能是通过5-HT2A和D1受体的对抗作用,导致多巴胺抑制.
- 环境温度升高会使单氨基基功能障碍和TRA过量时的高热症恶化.
- 作为对特拉马多尔毒性的潜在药理治疗方法,RIS显示出有前途.
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