Document Detail


Degradation of thyrotropin releasing hormone and a related compound by rat liver and kidney homogenate.
MedLine Citation:
PMID:  828243     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The inactivation of the hypothalamic hormone by rat liver and kidney homogenates was studied, using specific radioimmunoassays for the measurement of thyrotropin releasing hormone, pGlu-His-Pro-NH2 (TRH), and for an analogous peptide, pGlu-His-Pro-OH(TRH-OH), which has been proposed as a major metabolite of TRH [NAIR et al., 1971]. The inactivation of TRH and the free acid was found to be rapid. Heat lability and saturation kinetics suggest the involvement of enzymatic processes. In liver homogenate, TRH-OH production from TRH was observed. The accumulation of TRH-OH was substantial in experiments employing near-saturation concentrations of TRH. The liver and kidney are ascribed as major sites for breakdown of TRH in vivo.
Authors:
T J Visser; W Klootwijk; R Docter; G Hennemann
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neuroendocrinology     Volume:  21     ISSN:  0028-3835     ISO Abbreviation:  Neuroendocrinology     Publication Date:  1976  
Date Detail:
Created Date:  1977-04-25     Completed Date:  1977-04-25     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  0035665     Medline TA:  Neuroendocrinology     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  204-13     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Cross Reactions
Kidney / metabolism*
Liver / metabolism*
Radioimmunoassay
Rats
Thyrotropin-Releasing Hormone / metabolism*
Chemical
Reg. No./Substance:
24305-27-9/Thyrotropin-Releasing Hormone

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


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