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  • Title: [Unidentified steroid hormone of Cushing's syndrome and disease].
    Author: Suzuki T, Sakuta H, Nakagawa K, Iwata J, Ito T.
    Journal: Nihon Naibunpi Gakkai Zasshi; 1993 Dec 20; 69(11):1139-52. PubMed ID: 8293855.
    Abstract:
    A previously unknown HPLC peak was recently observed in urine samples from patients with Cushing's syndrome and disease. We analysed dansylated derivatives of 17keto steroid glucuronides in urine samples from patients with Cushing's syndrome, Cushing disease and from healthy subjects using high-performance liquid chromatography (HPLC) on reversed-phase Cap Cell PakC8. All urine samples from patients with Cushing's syndrome caused by adrenal adenoma and Cushing's disease showed an unknown large peak at the point between [110HE-G] and [110HA-G] peaks and at a retention time of 25.4 min. The same unknown peak was also observed in urine samples from a patient with asymptomatic cortisol-producing adrenal adenoma and two patients with ectopic ACTH-producing tumor, though the peak height was low for the former and one of the latter but high for the second of the two patients. In contrast, healthy male and female urine only showed a very small peak at the same retention time. Urine samples from a Cushing disease treated with op'DDD and Cushing's syndrome bilaterally adrenalectomized and treating with cortisol showed no such peak. The retention time of this unknown peak is clearly different from that of seven 17keto steroid standard glucuronide conjugates. The structure of this substance may be closely related to [110HE-G] or [110HA-G].
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