Document Detail


Leptin in the newborn mouse. Plasma concentrations, characterization of the circulating hormone, and tissue source.
MedLine Citation:
PMID:  12169833     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Previous studies suggested that brown adipose tissue (BAT) provides a source of circulating leptin in the newborn mouse. However, we detected no leptin mRNA in newborn BAT or in newborn liver or stomach. In contrast, leptin expression was detected readily in newborn white adipose tissue (WAT). Fasting plasma leptin concentrations in newborn mice were comparable to those in adult nonpregnant mice. In contrast to adult mice, however, the fasting leptin levels in newborn males were comparable to those in females. While leptin in the late-gestational pregnant mouse circulates as a complex with the leptin-binding protein, leptin in the newborn mouse circulates as the free hormone. Factors regulating the expression of leptin by newborn WAT remain to be elucidated.
Authors:
Jon Oden; Don Fleenor; Phyllis Driscoll; Michael Freemark
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Biology of the neonate     Volume:  82     ISSN:  0006-3126     ISO Abbreviation:  Biol. Neonate     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-08-09     Completed Date:  2003-03-18     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0247551     Medline TA:  Biol Neonate     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  109-16     Citation Subset:  IM    
Copyright Information:
Copyright 2002 S. Karger AG, Basel
Affiliation:
Department of Pediatrics, Duke University Medical Center, Durham, NC 27710, USA.
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / metabolism
Adipose Tissue, Brown / metabolism
Aging / metabolism
Animals
Animals, Newborn / metabolism*
Blood / metabolism
Female
Leptin / genetics,  metabolism*
Liver / metabolism
Male
Mice
Mice, Inbred C57BL
Osmolar Concentration
Pregnancy
RNA, Messenger / metabolism
Sex Characteristics
Stomach / metabolism
Tissue Distribution
Grant Support
ID/Acronym/Agency:
HD24192/HD/NICHD NIH HHS
Chemical
Reg. No./Substance:
0/Leptin; 0/RNA, Messenger

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