Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Contractile responses induced by KCl, 5-HT, or NAd in endothelium-denuded saphenous veins. Representative traces of KCl (60 mmol/l) (A, B), 5-HT (10 µmol/l) (D, E), or NAd (10 µmol/l) (G, H) in saphenous veins obtained from patients with normal (control) (A, D, G) and varicose veins (B, E, H). (C, F, I) Data represent the mean ± standard error of the mean of the contraction value (g) (n=12–105). KCl, potassium chloride; 5-HT, 5-hydroxytryptamine; NAd, noradrenaline.
