Inhibition of experimental stress ulcer formation in rats.

We present an operation model in rats, which according to our opinion prevents duodenogastric reflux effectively. The duodenum is divided distally from the pylorus and a pyloro-jejunostomy performed combined with a Roux-en-Y anastomosis. Rats operated this way and submitted to restraint stress developed significantly less stress lesions than operated control under same conditions. However, operated rats submitted to the operation and offered a 5 mMol/l drinking solution of crude taurocholic acid during 20 days before submitted to stress had significantly more stress lesions than operated animals with tap water before restraint stress.