Effects of rhubarb on isolated gastric muscle strips of guinea pigs

Table 2 Effect of rhubarb and antagonists plus rhubarb on the contractile frequency of gastric body CM of guinea pigs (mean±SE, n = 12).

Group	0	1%	3%	10%	30%	100%
Rhubarb	5.40±0.08	5.48±0.10	5.45±0.09	5.61±0.11a	5.60±0.09a	5.73±0.10b
Atropine (10-6 mol/L)+rhubarb	5.40±0.10	5.43±0.12	5.42±0.12	5.46±0.15	5.53±0.16	5.59±0.12
Isoptin (5×10-8 mol/L)+rhubarb	5.35±0.11	5.32±0.10	5.38±0.09	5.36±0.10	5.47±0.09	5.63±0.17a
Hexamethonium (10-5 mol/L)+rhubarb	5.43±0.05	5.48±0.04	5.48±0.05	5.48±0.04	5.53±0.04a	5.61±0.06a

^aP<0.05, ^bP<0.01 vs control.