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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1983-6-17
pubmed:abstractText
Tumor extracts from 9 patients with medullary thyroid carcinoma were studied to determine if multiple forms of immunoreactive calcitonin existed within the tumors. Calcitonin was extracted from the tumors with 0.1 N formic acid and the extracts were evaluated by gel filtration on columns of Bio-Gel P-10 and radioimmunoassay of the fractions obtained. Serum calcitonin concentrations were high enough in 3 patients to allow for similar evaluation. Four immunoreactive peaks of calcitonin were found after chromatography of the tumor extracts. Three of the peaks eluted earlier than monomer human calcitonin. 6 tumor extracts contained all four immunoreactive peaks while 3 had only two. In 2 patients four immunoreactive peaks of calcitonin were found in both the serum and the tumor extracts while 1 patient had three peaks in the serum but only two peaks were detected in the tumor extract.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0378-0392
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
292-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Heterogeneity of immunoreactive calcitonin in extracts of medullary thyroid carcinoma.
pubmed:publicationType
Journal Article