Linked Life Data

2719684

Source:http://linkedlifedata.com/resource/pubmed/id/2719684

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1989-6-16
pubmed:abstractText
Mechanism of developmental suppression of cytochrome P-450 (P-450) in rat livers was studied using Western blots. The contents of phenobarbital (PB)-inducible P-450b and P-450e, expressed constitutively in livers, were higher in neonate than in adult rats. The contents were also 10 approximately 50 fold higher in hypophysectomized than in intact adult male rats. Administration of L-triiodothyronine (T3, 50 micrograms/kg) or human growth hormone (4 U/kg) reversed almost completely the increased amounts of P-450b and P-450e. T3-induced suppression was also observed on two other neonatal P-450s (P-450 6 beta-1 and P-448-H), which are expressed in neonatal periods in livers. The postnatal developmental profiles of hepatic P-450b were correlated inversely with that of serum free T3 level in rats reported (Walker et al. (1980) Pediat. Res. 14, 249). These results suggest, in addition to pituitary growth hormone (Yamazoe et al. (1987) J. Biol. Chem. 262, 7423), the possible involvement of T3 on the suppressive regulation of PB-inducible and other neonatal P-450s.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
160
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
609-14
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Thyroid hormone suppression of hepatic levels of phenobarbital-inducible P-450b and P-450e and other neonatal P-450s in hypophysectomized rats.
pubmed:affiliation
Department of Pharmacology, School of Medicine, Keio, Tokyo, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't