Linked Life Data

12175367

Source:http://linkedlifedata.com/resource/pubmed/id/12175367

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2002-8-14
pubmed:abstractText
Prolactin (PRL) and growth hormone (GH) are known to be able to act as antimetamorphic hormones. From investigations of how PRL inhibits Xenopus tail regression in vitro, it was found that the both hormones could, in addition to their known antimetamorphic actions, upregulate mRNA expression of type III iodothyronine 5-deiodinase (5D), an enzyme that inactivates thyroid hormones (TH). Conversely, both PRL and GH were found to downregulate 5D mRNA expression in the liver. Blockage by PRL of TH-induced tail regression in organ culture was released by treatment with iopanoic acid (IOP, an inhibitor of 5D activity). The IOP-released tail regression displayed a unique morphology of the larger fins retained on the regressing tails, consistent with the finding that mRNA for both PRL receptor and 5D were enriched in the fin. The results suggest that the metamorphosis-modulating actions of PRL and GH are mediated, at least partially, by tissue-specific regulation of 5D mRNA expression.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0012-1592
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
327-35
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Tissue-specific regulation of type III iodothyronine 5-deiodinase gene expression mediates the effects of prolactin and growth hormone in Xenopus metamorphosis.
pubmed:affiliation
Developmental Biology Laboratory, Faculty of Integrated Arts and Sciences, Hiroshima University, Kagamiyama 1-7-1, Higashi-Hiroshima 739-8521, Japan.
pubmed:publicationType
Journal Article