Linked Life Data

6773615

Source:http://linkedlifedata.com/resource/pubmed/id/6773615

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1980-11-24
pubmed:abstractText
The effect of intracarotid prostacyclin (PGI2) on cerebral blood flow (CBF) was measured by the 133xenon intracarotid injection technique in 8 baboons. Intracarotid prostacyclin increased CBF by 22% at 10(-7) g/kg/min and by 71% at 5 x 10(-6) g/kg/min, accompanied by systemic hypotension and tachycardia. The effects of PGI2 (10(-7) g/kg/min) were not potentiated by transient opening of the blood-brain barrier with the intracarotid hypertonic urea technique. At hypercapnia, the vasoconstrictor effect of indomethacin on the cerebral circulation was reversed by PGI2. These results support our suggestion that a prostaglandin, in particular PGI2, is required for hypercapnia to produce full cerebral vasodilatation. In separate experiments, following craniectomy in 5 cats, PGI2, but not its stable metabolite 6-keto-PGF1 alpha, dilated pial arterioles when locally injected into the mock CSF overlying the arteriole.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
197
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
425-31
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Prostacyclin, indomethacin and the cerebral circulation.
pubmed:publicationType
Journal Article