Linked Life Data

9709379

Source:http://linkedlifedata.com/resource/pubmed/id/9709379

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-10-23
pubmed:abstractText
Time-dependent patterns in the susceptibility of the rat gastric mucosa to ulcerogenic stimuli involving stress or chemical injury have been described. The purpose of this study was to evaluate whether serotonin (5-HT)-induced gastric mucosal injury is produced in a circadian fashion in the rat model. In fasted Wistar rats (adapted for 3 weeks to a standard 12-h light-dark cycle), 5-HT administered subcutaneously (20 mg/kg, 4 h before autopsy) produced gastric mucosal injury. The stomachs were removed and the ulcers were scored for intensity, using a scale of 0-4. In studies performed at 4-h intervals, beginning 1 h after lights-on, most of the mucosal injury occurred at 2000 h, i.e. early in the dark phase. Likewise, serum corticosterone levels were also found to be high at the same time period. The time of 2000 h is approximately determined to be the beginning of the rats' active period. These results suggest that the extent of acute 5-HT-induced gastric mucosal injury varies with the time of day and that elevations in corticosterone concentrations might be responsible for the 5-HT-induced gastric mucosal injury.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0959-9673
pubmed:author
pubmed:issnType
Print
pubmed:volume
79
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
105-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Circadian rhythmicity in serotonin-induced acute gastric mucosal injury in rats.
pubmed:affiliation
Department of Pharmacology, Medical Faculty, Dokuz Eylul University, Izmir, Turkey.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't