对长效生长激素衍生物索马西坦进行药用研究,用于马的兴奋剂控制
Yoshibumi Shimizu1, Michiko Sugai-Bannai1, Haruka Tanabe1
1Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan.
概括
这项研究研究了长效复合人体生长激素 (rhGH) 的索马西坦. 一种新的LC-HRMS方法检测了多达14天的索马卡西坦,有助于兴奋剂控制.
科学领域:
- 兽医药物学
- 分析化学
- 运动科学
背景情况:
- 索马帕西坦是一种长效复合人体生长激素 (rhGH),可能在马体育中被滥用.
- 重组生长激素 (rGH) 类似物因其合成和脂解作用而被禁止使用.
- 关于索马帕西坦在马中的排泄和作用的数据有限.
研究的目的:
- 描述索马帕西坦在马中的施用和排泄动力学.
- 与血胰岛素类生长因子-1 (IGF-1) 水平相关联.
- 评估一种新的LC-HRMS方法,用于检测马类血中的somapacitan滥用.
主要方法:
- 三只纯血马接受了90毫克的皮下索马卡西坦.
- 在给药后对IGF-1的血水平进行了监测.
- 使用液体染色学高分辨率质谱 (LC-HRMS) 检测索马卡西坦特异性和共享片.
主要成果:
- 在 somapacitan 服用后,IGF-1 度显著增加.
- 在长达14天的时间内检测到索马帕西坦特异性的T10片段.
- 在注射后14天内,共享片在血中得到证实.
结论:
- 索马帕西坦在马匹中导致可检测的IGF-1升高.
- 开发的LC-HRMS方法可以识别索马卡西坦并将其与rhGH区分开来.
- 这种检测策略适用于马类兴奋剂控制样本,证实了滥用检测的可能性.
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