Table 2.

Maximal active stress response (mN/mm²) following 30 μM phenylephrine, 0.01 μM urotensin II, and 109 mM K⁺PSS. Control – Vehicle animals (n=9), UTII − 4 week administration of urotensin II (n=6); VO − 4 week volume overload (n=5); VO+UTII − 4 week VO + 4 week UTII administration (n = 4). Data are reported as mean ± sem

Groups	PE (30 μM)	UTII (0.01 μM)	109 mM K+PSS
Control	4.15 ± 0.42	1.88 ± 0.31	4.57 ± 0.37
UTII	2.25 ± 0.43*	0.65 ± 0.13*	4.27 ± 0.43
VO	2.86 ± 0.29*	1.70 ± 0.13	1.99 ± 0.36*
VO+UTII	2.23 ± 0.25*	1.37 ± 0.15	3.73 ± 1.12

^*p<0.05 vs. Control