Table 2.

Contractile response to phenylephrine and maximal relaxation to acetylcholine and sodium nitroprussside in the experimental groups.

	Phenylephrine		Acetylcholine		SNP
Group	pEC50 (mol/L)	Maximal Contraction (g)	Maximal Relaxation (%)	After Acute L-NAME	Maximal Relaxation (%)
C	−6.45 ± 0.086	2.37 ± 0.15	82.70 ± 2.50	27.38 ± 6.54	99.38 ± 1.62
L-N	−6.83 ± 0.064 *	2.54 ± 0.12	19.88 ± 4.14 *	4.55 ± 2.70 *	89.71 ± 2.03 *
A	−6.56 ± 0.09 †	2.76 ± 0.37	35.87 ± 6.89 *	18.47 ± 3.92 †	96.14 ± 1.73
LE	−6.77 ± 0.12	2.16 ± 0.10	31.57 ± 8.23 *	5.74 ± 3.93 *	91.65 ± 3.12
GBO	−7.22 ± 0.18 *	2.18 ± 0.49	21.96 ± 5.32 *	7.67 ± 1.02 *	84.74 ± 2.93 *,†
COE	−7.08 ± 0.14 *	2.09 ± 0.02	29.63 ± 3.99 *	13.65 ± 2.40 †	90.50 ± 1.57 *
D	−7.00 ± 0.14 *	2.01 ± 0.34	13.78 ± 4.77 *	5.23 ± 1.81 *	91.59 ± 3.13

Data are mean ± S.E.M. Abbreviations as in Table 1. pEC₅₀ is the negative logarithm of the half maximal effective concentration (EC50). * p < 0.05 vs. Control; † p < 0.05 vs. L-NAME.