Endocrine Abstracts

Corticotropin-releasing hormone (CRH) and Urocortin 2 (Urn2) are secreted locally in peripheral tissues and play a direct immunomodulatory role as endocrine or paracrine mediators of inflammation. Studies on CRH as well as Ucn2 and vascular endothelial cells suggest that CRH may play a pivotal role in the regulation of vascular endothelial function under normal and pathological conditions. The present study was undertaken to determine whether CRH and Urn2 affect the endothelia...

Introduction: Limited data, support the notion that testosterone induces oxidative stress. Corticotropin-releasing hormone (CRH) participates locally in the endothelial inflammatory response by regulating the pro-oxidative mechanisms of the endothelium, inducing its adaptation to local stress. The present study was undertaken to determine whether the CRH induced pro-oxidant activity in macroendothelial cells under basal conditions, is regulated In vitro by androgen (t...

Introduction: Limited data exist on testosterone and oxidative stress induction. The present study was undertaken to evaluate, in vitro, the role of physiological concentrations of androgens (testosterone-DHT) in modulating the pro-oxidant and antioxidant activity of intact endothelial cells.Materials and methods: EA.hy926 macroendothelial cells were cultured in DMEM phenol red free without FBS for 24 hours. Growth medium was replaced and then testostero...