Figure 11. Effect of TEA⁺ on SNP-induced relaxation in endothelium-denuded femoral artery.

(A) Traces showing vasorelaxation in an artery contracted by 20 K/Bay K. SNP (0.1–100 µ M) produced relaxation before and after treatment with 2 mM TEA⁺; (B) Trace showing vasorelaxation produced by SNP (0.1–100 µ M) in an artery contracted with 80 K. (C) Concentration-response curves for relaxations induced by SNP in arteries contracted with 20 K/Bay K in the absence (●) and presence (∘) of 2 mM TEA⁺, and in arteries contracted with 80 K (▾).