Endocrine Abstracts

Introduction: Free testosterone (FT) and bioavailable testosterone (BT), are better surrogate markers of the androgenic status of the individual than total testosterone (TT). Calculated FT (CFT) and calculated BT (CBT) which take into consideration the kinetics of the bond between FT and albumin and SHBG, provide results practically identical to those of the reference techniques. Salivary testosterone (Sal-T) is a promising tool in the study of gonadal pathology. The interassa...

Context: The determination of human chorionic gonadotropin (hCG) in cerebrospinal fluid (CSF) is useful for the differential diagnosis of suprasellar lesions. However, the concentrations that prove diagnostic for neurohypophyseal germinoma have not been well defined. In addition, the immunoassays used for such determination are the same as those applied in serum, and few studies have been performed regarding the validation of such techniques in CSF.Objec...