三OXO71 在 rhesus macaques 中的药理动力学和分布
Christopher D Kroenke1, Irene Canavesi2, Jenna N Castro3
1Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA.
Magnetic resonance in medicine
|December 16, 2025
概括
使用三基OXO71的电子磁共振氧成像 (EPROI) 在 rhesus macaques 中是安全的. 这项研究为优化人类EPROI提供了关键的药理动力学和组织分布数据.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 医学物理 医学物理
- 药理学 药理学是指药理学的学科.
背景情况:
- 电子磁共振氧成像 (EPROI) 在体内量化氧的部分压力 (pO2).
- OXO71是EPROI中使用的三基,在小动物研究中先前有过应用.
- 将EPROI转化为人类使用需要在类似于人类的大型动物模型中进行优化.
研究的目的:
- 在 rhesus macaques 中静脉注射后描述 OXO71 的药理动力学.
- 为了确定OXO71在 rhesus的组织分布.
- 在灵长类动物模型中评估OXO71对EPROI的安全性和可行性.
主要方法:
- 三只 rhesus 在10分钟内接受了92μmol/kg OXO71的静脉注射.
- 在注射后2小时内收集血和尿液样本.
- 在第二剂后,动物被安乐死,并使用EPR成像评估组织分布.
主要成果:
- 血OXO71表现出双相清除,初始和终端半衰期分别为12.4 ± 1.2 分钟和67.7 ± 8.9 分钟.
- 在大多数组织中发现了可观的OXO71度,除了大脑.
- 没有观察到任何不良的生理影响,表明毒性低.
结论:
- 使用OXO71的EPROI是安全的,并且在灵长类动物中耐受良好.
- 药理动力学和组织分布数据为大型动物和人类提供EPROI的剂量和时间.
- 这些发现支持进一步开发基于OXO71的EPROI用于临床应用.
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