Original Research
Copyright ©The Author(s) 1997.
World J Gastroenterol. Dec 15, 1997; 3(4): 221-224
Published online Dec 15, 1997. doi: 10.3748/wjg.v3.i4.221
Table 4 Rmax and EC50 values for KCl and phenylephrine in aortic rings from rats with portal hypertension and sham-operated control rats with and without L-NNA treatment (x ± sx-)
AgentEC50
Maximal contractions (g)
UntreatedL-NNAUntreatedL-NNA
KCl (mmol/L)
PH26.5 ± 0.9ba20.2 ± 0.80.72 ± 0.05ba1.08 ± 0.1b
Control22.3 ± 1.7a19.4 ± 1.20.98 ± 0.05a1.21 ± 0.11
PE (× 10-8 mol/L)
PH3.72 ± 0.4ba2.24 ± 0.181.04 ± 0.08ba1.43 ± 0.14a
Control2.81 ± 0.2b2.18 ± 0.141.34 ± 0.39a1.72 ± 0.11