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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1992-4-20
pubmed:abstractText
We investigated the hypothesis that cerebral prostanoid and peptidoleukotriene (LTs) (LTC4/D4/E4/F4) synthesis are increased during postischemic reperfusion of newborn pig brains. Prostanoids and LTs extracted from brain tissue were determined by RIA in sham-control piglets and at 1h, 3h, or 12h after a 20-min period of total cerebral ischemia. During reperfusion following ischemia, all regional brain tissue (cerebrum, brain stem and cerebellum) prostanoids (6-keto-PGF1 alpha, TXB2, PGE2 and PGF2 alpha) were increased at 1h compared with those in sham-control piglets. Only cerebral and brain stem 6-keto-PGF1 alpha and cerebral TXB2 remained elevated at 3h postischemia and all prostanoids returned to control levels by 12h postischemia. Brain tissue LTs were lower than prostanoids and were not altered 1, 3, or 12h following ischemia. These data indicate that 1) newborn pig brain tissue prostanoids are increased initially, and then returned to control levels at later stages of reperfusion following ischemia; 2) LTs are present in newborn pig brain tissue, but are not increased by ischemia/reperfusion injury and therefore probably do not play a significant role in cerebral ischemia-reperfusion injury.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0090-6980
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
557-69
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Effects of ischemia/reperfusion on brain tissue prostanoids and leukotrienes in newborn pigs.
pubmed:affiliation
Department of Physiology/Biophysics, University of Tennessee, Memphis.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.