Effect of Cimetidine on Gastric Mucus Glycoprotein Biosynthesis

Abstract
The effects of cimetidine on gastric mucus glycoprotein biosynthesis in rat gastric mucosa were investigated using organ culture technique. 2 h following oral administration of cimetidine (40 mg/kg body weight), corpus tissue was placed in the organ culture. Mucus glycoprotein synthesis was accelerated to 137% of control (p < 0.01). In order to investigate the direct effect of cimetidine on mucus glycoprotein biosynthesis, corpus tissue was cultured in the medium containing cimetidine. 100 μM cimetidine enhanced mucus glycoprotein biosynthesis to 174% (p < 0.01). Cimetidine was found to stimulate gastric mucus glycoprotein biosynthesis both in vivo and in vitro.