Table 1.
Effect of tetrodotoxin (TTX; 1 μM) and atropine (1 μM) on the contractions induced by electrical field stimulation (EFS) in the mouse gastric fundus and small intestine
| EFS | Control | TTX | Control | Atropine |
|---|---|---|---|---|
| Gastric fundus | ||||
| 0.5 Hz | 12.5±2.6 | 0±0* | 12.0±2.3 | 0±0* |
| 1 Hz | 23.7±3.4 | 0±0* | 22.1±3.0 | 0±0* |
| 2 Hz | 32.3±3.9 | 0±0* | 30.3±3.8 | 0±0* |
| 4 Hz | 48.7±4.2 | 0±0* | 45.4±3.3 | 0±0* |
| Small intestine | ||||
| 0.5 Hz | 24.3±2.2 | 0±0* | 27.4±1.9 | 0±0* |
| 1 Hz | 36.8±2.8 | 0±0* | 36.3±3.3 | 0±0* |
| 2 Hz | 46.0±2.7 | 0±0* | 45.3±2.4 | 0±0* |
| 4 Hz | 57.4±3.8 | 1±1* | 57.8±4.3 | 1±1* |
Contractions are expressed as percentage of a 50 mM KCl contraction and shown as mean±s.e.mean. *P⩽0.05, Student's t-test for paired observations (n=5).