Courses of Arginine-Vasopressin in the Systemic and Cavernous Blood through Different Stages of Sexual Arousal in Healthy Males and Patients with Erectile Dysfunction

Figure 1

Tissue bath studies: isometric force generation of isolated human corpus cavernosum penis in response to the addition of physiological concentrations of arginine-vasopressin or the alpha-adrenoceptor agonist norepinephrine (NE) (0.1 nM–100 nM). Asterisk indicates that the contraction responses measured following the addition of a distinct concentration of AVP or NE are significantly different from each other ().