Relaxant Effect of Urginea maritima on Tracheal Smooth Muscle Mediated by the Effect on Beta-2 Adrenergic, Muscarinic Receptors and Calcium and Potassium Channels

Figure 3

Concentration-response relaxant effects (mean ± SEM) of the U. maritima extract on 10 μM methacholine-induced contraction of TSM in nonincubated and propranolol-incubated (1 μM) (a) and diltiazem-incubated TSM (1 μM) (b) (n = 8 for all groups). , compared to the effect of saline (NS), ⁺, compared to the effect of the extract on nonincubated tissues. ANOVA with the Tukey–Kramer post hoc test was used for statistical comparison.

(a)

(b)