Objectives: To determine the alterations in the plasma levels of endothelin-1, angiotensin II, nitric oxide (NO) and prostaglandin E(2) (PGE(2)) in the venous and cavernosal blood of patients with organic and psychogenic erectile dysfunction (ED).
Patients, Subjects And Methods: The study included 32 patients complaining of ED; they were subdivided into two equal groups with either organic or psychogenic ED. Fifteen healthy potent age-matched male volunteers were enrolled as a control group.
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