Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-12-9
pubmed:abstractText
The mechanism of prostaglandin-induced cervical ripening is not clear. The aim of this study was to measure the biophysical and histological effects of gemeprost on the cervix. Thirty-four women admitted for surgical termination of pregnancy in the first trimester were randomised in a double-blind manner to receive either gemeprost or placebo prior to surgery. In 20 (10 active, 10 placebo) a needle biopsy was taken from the anterior lip of the cervix prior to cervical dilatation for histology. The forces required to dilate the cervix from 3 mm to 10 mm were measured. A group of seventeen parous women undergoing surgical termination who did not receive gemeprost were also studied as a parous control group. A needle biopsy was obtained in eight of them and also in six non-pregnant parous women undergoing hysterectomy for benign conditions, the latter acting as a non-pregnant control group. Polymerised collagen was stained with Picrosirius red and glycosaminoglycans with alcian blue using a MgCl2 gradient. Optical densitometry was used as an objective measure of staining. Neutrophil concentration was assessed immunohistochemically. Gemeprost treatment increased free passibility (the size of the largest dilator which could be passed without encountering resistance) (P < 0.01), reduced the forces required to dilate the cervix (P < 0.01) reduced blood loss (P < 0.05), reduced the collagen concentration (P < 0.01) and was associated with a modest neutrophil influx (P < 0.02) as compared to placebo. The pregnant parous group had a significantly lower collagen concentration than the non-pregnant parous group (P < 0.02).(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0301-2115
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-9
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Gemeprost-induced cervical ripening: histological and biophysical effects.
pubmed:affiliation
MRC Reproductive Biology Unit, Centre for Reproductive Biology, Edinburgh, UK.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial