Abstract
Catecholamines act as neurotransmitters and play an important role in the physiology of ejaculation. Recently, the basal release of new catecholamines from the endothelium of vascular tissues in reptiles and mammals, and from the epithelium of the human seminal vesicle and vas deferens, was identified using mass spectrometry. Among these catecholamines, 6-nitrodopamine (6-ND) and 6-cyaned…