Table 2.

Effect of ODQ (10 μM) and NS 2028 (10 μM) on relaxations to isoprenaline (3–30 nM) in gastric fundus and circular jejunal muscle strips and in intact jejunal segments

	Gastric fundus strips		Jejunal segments		Circular jejunal strips
	ISO 10 nM	ISO 30 nM	ISO 3 nM	ISO 10 nM	ISO 3 nM	ISO 10 nM
Control (%)	20±2	64±2	31±4	71±4	26±3	67±6
ODQ (%)	19±4	59±8	28±5	69±6	27±3	72±7
Control (%)	23±3	72±8	27±2	66±2	29±4	70±6
NS 2028 (%)	26±3	74±6	32±3	73±5	30±2	73±8

Abbreviation: ISO: isoprenaline.

Relaxations are expressed as % relaxation of a prostaglandin F_2α-induced contraction and shown as mean±s.e.m. for n=4 experiments. Student's t-test for paired observations did not show significant differences.