Abstract
Gas chromatography-mass spectrometry has been used to study the metabolism of Althesin (alphaxalone and alphadolone acetate) in man. Two metabolites, 20α-reduced alphaxalone and alphadolone, as well as the two parent steroids, have been detected in the plasma during and after an infusion of Althesin. The main urinary metabolites were alphaxalone and 20α-reduced alphaxalone, with smaller amounts of alphadolone, all of which were excreted mainly as the glucuronide conjugates. No alphadolone acetate was detected in the urine. In 3 patients in whom bile was collected over the 1st 24 h post-operation from an indwelling T-tube, it has not been possible using the methods described to detect in bile the presence of the parent steroids, or any of their probable metabolites.
摘要
气相色谱-质谱联用技术被用于研究Althesin(alphaxalone和alphadolone
醋酸盐)在人体内的代谢过程。在Althesin输注期间和之后,检测到两种代谢物,20α-还原的alphaxalone和alphadolone,以及两种原代类
固醇。主要的尿液代谢物是alphaxalone和20α-还原的alphaxalone,少量的alphadolone,所有这些都主要通过
葡萄糖醛酸酯的形式排出。尿液中未检测到alphadolone
醋酸盐。在3名患者中,通过留置的T管在手术后的第1天收集了胆汁,使用所描述的方法未能检测到原代类
固醇或其可能的代谢物的存在。