Potassium Channel Activation Is Involved in the Cardiovascular Effects Induced by Freeze Dried Syzygium jambolanum (Lam.) DC Fruit Juice

Figure 6

Concentration-response curves showing the participation of K⁺ channels in the vasorelaxant effect induced by JSJ. (a) Relaxation induced by JSJ in the endothelium-denuded mesenteric artery rings pre-contracted with Phe (1 μM) in the absence (○; n=6) or in the simultaneous presence of potassium channel blockers for 4-AP (1 mM), glibenclamide (10 μM), BaCl₂ (30 μM) and TEA (1 mM) (◇, n=5), or (b) Iberiotoxin 100 nM (◐, n=6), or (c) BaCl₂ (30 μM) (◑, n=7), or (d) 4-AP 1 mM (◆), (n = 5), or (e) Glibenclamide 10 μM (∇, n=7). The Values were expressed as mean ± SEM.

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