Antisecretory Effect of Hydrogen Sulfide on Gastric Acid Secretion and the Involvement of Nitric Oxide
L-Cysteine decreased the gastric acid output induced by distention (1.5 mL/100 g of body weight by normal saline and pH 7 and 37°C for 90 min). Animals received normal saline at 2 mL/kg, i.p. (C: control), or L-cysteine at 50 mg/kg, i.p. (L-cys), once a day for five days before stimulation of the gastric acid secretion. Asterisk indicates a significant decrease () as compared to control. Data are expressed as mean ± S.E.M.