Induction of ornithine decarboxylase activity in rat glandular stomach mucosa by bile acids

A single oral instillation of 1.5 g/kg body weight of sodium taurocholate resulted in a rapid, transient stimulation of ornithine decarboxylase activity in rat glandular stomach mucosa, reaching a peak (10 times the control value) 4 to 6 hr after sodium taurocholate treatment and returning to the control level within 48 hr. The degree of stimulation was dose-dependent. Sodium taurodeoxycholate and sodium taurochenodeoxycholate stimulated the enzyme activity similarly.