Endocrine Abstracts

Somatostatin (sst) receptors are expressed in many tissues and multiple subtypes are often present in the same cells. Their activation by endogenous sst as well as by sst-analogues leads to inhibition of secretion and growth in some tumor, such as the neuroedocrine ones.Pheochromocytomas (Pheos) and paragangliomas (PGLs) are neural crest-derived tumors which can be sympathetic or parasympathetic in origin and present themselves as sporadic or familial. T...

Introduction: Male hypogonadism is very frequent in men treated with highly active anti-retroviral therapy (HAART) for Human Immunodeficiency Virus-1 (HIV-1) infection, reaching a prevalence of about 20%. Literature data regarding the time course of serum total testosterone (T) levels in these patients are lacking.Aim of the study: To evaluate changes of T levels over time in HIV-positive men with an initial finding of low T (<300 ng/dl).<p class...