Research Area: Neurological Disease
Biological Activity:
Sodium Danshensu is a mono sodium of danshensu which is a compound isolated from Salvia miltiorrhiza Bge. Sodium danshensucan can significantly regulate PXR and CYP3A4. In thoracic arteries under basal tonus, sodium danshensu (0.3-3 g/L) produced a dose-dependent transient contraction. In phenylephrine-precontracted thoracic arteries with or without endothelium, low concentration (0.1-0.3 g/L) of sodium danshensu produced a weak contraction, while high concentrations (1-3 g/L) produced a pronounced vasodilator after a transient vasocontraction. Pre-incubation with sodium danshensu could inhibit vessel contraction induced by phenylephrine and potassium chloride in a concentration-dependent way. Sodium danshensu inhibited phenylephrine- and CaCl2-induced vasoconstriction in Ca2+-free medium. Pre-incubation with tetraethylammonium, a non-selective K+ channel blocker, and apamin, a small-conductance calcium-activated K+ channel blocker partially antagonized the relaxation response induced by sodium danshensu. [1][2]