3 結果
Taking an advantage of the property of delta 4-steroid that have a maximum absorbance around 250 nm wave-length of ultraviolet, we devised an assay method for the determination of serum delta 4-steroids concentration using a reverse phase high performance liquid chromatography (HPLC)-UV
Accurate separation and identification of steroids from the postvitellogenic ovarian follicles of Indian climbing perch Anabas testudineus was performed by high-performance liquid chromatography (HPLC) and specific radioimmunoassay (RIA). The steroids from such follicles, incubated in Cortland's
17 alpha, 20 alpha-dihydroxy-4-pregnen-3-one (17 alpha, 20 alpha-P) is reportedly a hyper-tensinogenic substance in a model of ACTH induced hypertension in sheep (Scoggins et al). This steroid has not previously been measured in Japan. We have developed a new radioimmunoassay (RIA) system for 17