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Curr Drug Targets. 2015 Mar 9. [Epub ahead of print]

Mini Review: Pathophysiology of Erectile Dysfunction.

Author information

1
The James Buchanan Brady Urological Institute, 600 N. Wolfe Street / Marburg 409, Baltimore, Maryland, 21287, USA. tbivala1@jhmi.edu.

Abstract

Erectile dysfunction (ED) is a major health problem as the population ages. Basic science research for the last two decades has expanded the knowledge on ED and identified several key molecular changes associated with the pathogenesis of ED, including nitric oxide (NO) / cyclic guanosine monophosphate (cGMP) / protein kinase G (PKG) pathway, RhoA/Rho-associated protein kinase (ROCK) signaling pathway, reactive oxygen species (ROS), renin-angiotensin system (RAS) and tumor necrosis factor-alpha (TNF-α). The causes of ED are classified into aging, vasculogenic, neurogenic, endocrinological, drug-induced and psychogenic. ED is often associated with systemic diseases, such as diabetes and cardiovascular diseases. In this review, we will review the molecular mechanisms of ED and known mechanisms behind ED associated with systemic diseases.

PMID:
25751011

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