Linked Life Data

7438474

Source:http://linkedlifedata.com/resource/pubmed/id/7438474

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1981-2-26
pubmed:abstractText
Using specific homologous radioimmunoassays of native hCG and its alpha and beta subunits, we determined the levels of these glycoproteins in unfiltered maternal blood serially obtained in five non-invasive hydatidiform moles before and after evacuation. Some of these samples were assayed after gel filtration chromatography on Sephadex G 100. Twelve samples, obtained in cases of invasive trophoblastic tumour after ablative surgery and chemotherapy, were also assessed for their hCG, hCG alpha and hCG beta content. In unaborted moles, mean circulating levels of native hCG and free hCG beta were considerably increased (seven and thirteen times, respectively) as compared to normal pregnancies of the same age, whereas levels of free hCG alpha were either normal or slightly elevated. Chromatographic analyses of molar sera confirmed the presence of free circulating subunits, and separated hCG beta in its monomeric form from its higher molecular weight form, the latter being in greater quantity than in normal pregnancy sera. In contrast, the elution profile of serum native hCG was comparable in cases of normal and molar pregnancy. Successful curettage was accompanied by a return to normal levels of the native hCG and its alpha and beta subunits in 40-90 days. Persistence of tumour tissue was indicated by a slight increase in levels of native hCG and the beta subunit. Determination of alpha subunit level was less useful for the detection of any relapse.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0300-0664
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
319-29
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Serum concentration of human chorionic gonadotropin and its alpha and beta subunits. 2. Trophoblastic tumours.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't