Abstract：
:Esophageal ligation in the pylorus-ligated rat significantly inhibited volume, titratable acidity, and titratable acid output and reduced the incidence of ulcers, perforations, and death of 18-hr pylorus-ligated rats. Draining the saliva outside the body of the rat by esophageal cannulation produced a significant increase in volume and gastric acidity over the esophagus-ligated preparation. A method for collection of saliva in the unanesthetized unstimulated rat was developed, and basal salivary flow was found to be 0.84 ml/4 hr. Administration of 1.0 ml of freshly collected saliva to esophagus + pylorus-ligated rats increased titratable acidity, but not volume of secretion, to the level found in the pylorus-ligated rat. A similar effect was obtained with administration of 1.0 ml of a phosphate buffer. Removal of the salivary glands had no significant effect on gastric acidity in the pylorus-ligated rat and the reduction in volume could be accounted for by the lack of saliva. Gastric secretion in the esophagus + pylorus-ligated rat was stimulated by histamine, carbachol, insulin, and 2-deoxyglucose. When the vagus nerves were cut, stimulation was still obtained with carbachol but not with insulin or 2-deoxyglucose. The data indicated that rat saliva did not contain a specific gastric stimulant material, and esophageal ligation depressed gastric secretion in the pylorus-ligated rat by inhibition of the central vagal activity.
journal_name
Gastroenterologyjournal_title
Gastroenterologyauthors
Brodie DA,Knapp PGsubject
Has Abstractpub_date
1966-06-01 00:00:00pages
787-95issue
6eissn
0016-5085issn
1528-0012pii
S0016508566000064journal_volume
50pub_type
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