Linked Life Data

6270942

Source:http://linkedlifedata.com/resource/pubmed/id/6270942

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1981-12-21
pubmed:abstractText
The cyclic AMP response to thyrotrophin (TSH) has been investigated in cells prepared from human thyroid tissue obtained during surgery for subtotal laryngectomy, and maintained under in vitro conditions as primary monolayer cultures. When cells were incubated with 1.0 mU TSH/ml, a maximal level of intracellular cyclic AMP was reached after 20 min of incubation in the presence of 0.5 mM 3-isobutyl-1-methyl xanthine (MIX). This level of cyclic AMP was sustained for at least 2 h. Half-maximal stimulation of cyclic AMP was produced by TSH doses of between 1 and 5 mU/ml. In a study of a series of eight groups of monolayer cultures, each derived from a single, different thyroid gland, the mean stimulation of cyclic AMP given by 50 mU TSH/ml was 37.8-fold greater than in non-stimulated cell monolayers. Significant stimulation of 50 microunits TSH/ml was observed in some monolayers and the precision of measurement of TSH was better than 15% over the TSH dose range 0.2-1.0 mU/ml. The magnitude of the cyclic AMP response to TSH was unaffected by the presence in the incubation medium of 20% (v/v) normal human serum. A cyclic AMP response to TSH was still demonstrable in cells that had been maintained for a period of 22 days in monolayer culture, although the response was reduced in comparison with that given by 4-5 day old cultures.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0001-5598
pubmed:author
pubmed:issnType
Print
pubmed:volume
98
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
370-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Characterisation of the cyclic AMP response to thyrotrophin in monolayer cultures of normal human thyroid cells.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't