Linked Life Data

2129835

Source:http://linkedlifedata.com/resource/pubmed/id/2129835

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1991-11-1
pubmed:abstractText
Nicotine, which is thought to be responsible for part of the pharmacological effect of smoking, exacerbates gastric mucosal injury in rats. The effects of misoprostol (12.5 micrograms to 100 micrograms), omeprazole (12.5 mg to 100 mg) and sucralfate (50 to 400 mg) on gastric mucosal blood flow and mucosal injury induced by nicotine were studied in an ex vivo gastric chamber preparation in rats. Rats were pretreated with nicotine (25 micrograms/mL orally) for 10 days and ethanol was added to the gastric chamber preparation. Laser Doppler flowmetry was used to measure the gastric mucosal blood flow and mucosal damage (ulcer index) was assessed by the area of haemorrhagic lesions. The ulcer index was significantly higher in rats pretreated with nicotine. Treatment with misoprostol and omeprazole lowered the ulcer index significantly compared with controls. The peak and summation blood flows were lower in nicotine-treated rats but failed to reach statistical significance. The peak blood flow (blood flow at 45 min) and the summation blood flow were significantly higher with all doses of sucralfate, misoprostol and omeprazole than in controls (P less than 0.05). The increase in gastric mucosal blood flow was significantly higher with sucralfate and misoprostol than with omeprazole. We conclude that sucralfate, misoprostol and omeprazole prevent nicotine- and ethanol-induced gastric mucosal damage and are accompanied by an increase in gastric mucosal blood flow. This indicates that smoking exacerbates gastric mucosal injury and that cytoprotective and site-protective agents can reduce injury by these noxious agents.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0815-9319
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
653-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
The effect of misoprostol, omeprazole and sucralfate on nicotine- and ethanol-induced gastric injury and gastric mucosal blood flow: a comparative study.
pubmed:affiliation
Department of Medicine and Pharmacology, University of Hong Kong, Queen Mary Hospital.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't