Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1985-8-19
pubmed:abstractText
Prostacyclin and thromboxane have been implicated in the pathophysiology of several disorders of pregnancy, but there is little information on concentrations of these prostaglandins in normal pregnancy. The aim of our study was to determine the range of values throughout normal pregnancy and the puerperium and to compare this with concentrations in normal non-pregnant women. Measurement was by radioimmunoassay of prostacyclin and thromboxane metabolites. We observed a significant difference in prostacyclin metabolites in the first trimester, (mean 19.9, SEM 0.96 pg/ml) compared with the normal non-pregnant group (mean 15.9, SEM 0.68 pg/ml). There were no significant differences between values in the normal non-pregnant group and those in the second and third trimester or postnatally. The increase in prostacyclin in the first trimester may be associated with placentation and physiological vasodilation, and insensitivity to angiotensin II seen in early pregnancy. We noted a significant reduction in thromboxane metabolites in the second (mean 133, SEM 14.9 pg/ml) and third (mean 123, SEM 10.7 pg/ml) trimesters and the puerperium (mean 119, SEM 6.3 pg/ml) compared with the values in the normal non-pregnant group (mean 142, SEM 4.9 pg/ml). This may be due to increased platelet stability or decreased thromboxane synthesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0306-5456
pubmed:author
pubmed:issnType
Print
pubmed:volume
92
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
581-5
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Immunoreactive prostacyclin and thromboxane metabolites in normal pregnancy and the puerperium.
pubmed:publicationType
Journal Article