Relationship of gastric mucosal damage induced in pigs by antiinflammatory drugs to their effects on prostaglandin production

1982 ◽  
Vol 27 (7) ◽  
pp. 624-635 ◽  
Author(s):  
K. D. Rainsford ◽  
Carolyn Willis
2019 ◽  
Author(s):  
DV Pilar ◽  
VVS Ibran ◽  
RC Mario ◽  
CA Octavio ◽  
MM Canales-Martinez ◽  
...  

1985 ◽  
Vol 249 (1) ◽  
pp. G137-G144 ◽  
Author(s):  
T. A. Miller ◽  
D. Li ◽  
Y. J. Kuo ◽  
K. L. Schmidt ◽  
L. L. Shanbour

By use of an in vivo canine chambered stomach preparation in which the gastric mucosa was partitioned into two equal halves, the effect of topical 16,16-dimethyl PGE2 (DMPGE2) (1 microgram/ml of perfusate) and 8% and 40% ethanol on tissue levels of nonprotein sulfhydryl compounds was assessed. Both DMPGE2 and 8% ethanol significantly increased (P less than 0.005) mucosal levels of nonprotein sulfhydryls when compared with corresponding mucosa bathed with saline alone. In contrast, mucosa bathed with 40% ethanol showed significantly decreased levels. If mucosa was bathed with DMPGE2 or 8% ethanol prior to exposing the stomach to 40% ethanol, this depletion in sulfhydryl compounds was not observed. Since other experimental observations have shown that exogenously administered prostaglandins and mild irritants (such as low-dose alcohol) can prevent gastric mucosal damage by necrotizing agents (such as high-dose alcohol), our findings are consistent with the hypothesis that nonprotein sulfhydryls may play a role in mediating gastric mucosal protection.


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