Figure 6.
Electrical field stimulation (EFS)-induced response of distal gastric longitudinal muscle strips after serial administration of atropine, MRS2500, N-nitro-L-arginine (L-NNA), and tetrodotoxin (TTX). (a) Atropine and L-NNA decreased the peak in the control subjects. (b) Atropine decreased the peak in the diabetic patients. (c) Atropine increased the nadir but L-NNA abolished relaxation in the control subjects. (d) Also in diabetic patients, L-NNA abolished relaxation. The Wilcoxon signed-rank test was used to evaluate the effects of each drug by compare values to the previous one.