Document Detail


Thyroid hormone action: early calorigenic effect on dispersed rat liver cells in the absence of protein synthesis.
MedLine Citation:
PMID:  3391135     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Isolated dispersed rat liver cells were prepared by hypothyroid Sprague-Dawley rats. The cells were incubated under 95% O2/5% CO2 in Krebs-Ringer-bicarbonate buffer at pH 7.3-7.4 at 37 degrees C. The medium had been enriched with 2% bovine serum albumin (previously stripped of thyroid hormone) and 5-10 mM alanine as substrate. Two hour incubations were carried out with or without added triiodothyronine (T3) at 3 nM or 300-1,000 nM concentrations. Oxygen consumption determined at the end of the period of incubation with the Clark oxygen electrode showed stimulation above control values in the hormone treated flasks; parallel studies in which cycloheximide (100 microM) had been added to cells to block protein synthesis also showed enhanced oxygen consumption in response to T3. The results indicated a response to the hormone not dependent on new protein formation.
Authors:
K Sterling; G Tsuboyama; M A Brenner
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Endocrine research     Volume:  14     ISSN:  0743-5800     ISO Abbreviation:  Endocr. Res.     Publication Date:  1988  
Date Detail:
Created Date:  1988-08-18     Completed Date:  1988-08-18     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8408548     Medline TA:  Endocr Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  109-16     Citation Subset:  IM    
Affiliation:
Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cells, Cultured
Cycloheximide / pharmacology
Liver / drug effects*,  metabolism
Oxygen Consumption / drug effects
Protein Biosynthesis
Rats
Rats, Inbred Strains
Triiodothyronine / pharmacology*
Grant Support
ID/Acronym/Agency:
DK-37870/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
66-81-9/Cycloheximide; 6893-02-3/Triiodothyronine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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