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Table 2 The effects of F1 on E max and pEC 50 values for CaCl 2

From: Potassium channel openers and prostacyclin play a crucial role in mediating the vasorelaxant activity of Gynura procumbens

F1 (mg/ml)

Ca2+-free solution containing high K+

Ca2+and K+-free solution containing PE

 

Emax(%)

pEC50

Emax(%)

pEC50

0

100

3.35 ± 0.08

100

3.73 ± 0.21

2.0

86.33 ± 5.44*

3.31 ± 0.19

75.33 ± 10.33**

3.61 ± 0.27

4.0

50.04 ± 12.06**

3.24 ± 0.42

44.93 ± 11.46**

3.34 ± 0.48

  1. Values are means ± S.E.M (n = 6). *P < 0.05 and **P < 0.01 compared with control (0 mg/ml of F1.