Linked Life Data

6247224

Source:http://linkedlifedata.com/resource/pubmed/id/6247224

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1980-8-28
pubmed:abstractText
GH3/B6 rat prolactin cells were used to analyse at the cellular level the mechanisms by which 17 beta-estradiol (E2) regulates TRH responsiveness of prolactin cells. Before experiments, cells were grown for up to 7 days in 3 different media: normal medium (N) containing 15% horse serum and 2.5% fetal calf serum, CD medium prepared with charcoal-dextran extracted serum and CDE medium supplemented with 4 x 10(-8) M E2. The binding of 3H-TRH (30 min at 37 degrees C) and the TRH-induced percent increase of prolactin release as a function of TRH doses were compared in the 3 conditions. Preculture in E2 enriched medium increased by 50% the number of TRH high-affinity binding sites without modifying their affinity, increased by up to 3 times the percent of the TRH-induced stimulation of prolactin release and improved by one order of magnitude the ED50 of the TRH effect on prolactin release. The presence of HEPES (10 mM) during TRH challenge masked the effect of E2 on the increase in number of binding sites but respected its potentiating effect on prolactin release.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0303-7207
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
123-36
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Effect of 17 beta-estradiol on thyroliberin responsiveness in GH3/B6 rat prolactin cells.
pubmed:publicationType
Journal Article