Figure 1.

Effects of mucosal acidfication on the gastric mucosal release of H₂S. C: control; HCl-(10 or 100): mucosal acidification with 10 or 100 mM HCl for 90 min; L-NAME: one group of rats received a single dose of L-NAME (10 mg/kg, IP) accompanied with instilling acidic saline solution (pH 1, at 37 °C). The results of ELISA showed that mucosal acidification increased mucosal release of H₂S; L-NAME inhibited this increase. ^**P<0.01 and ***P<0.001 versus control group. αP<0.05 significant increase compared to 10 mM HCl-treated group. Data are expressed as mean±SEM