Document Detail


Serum leptin levels do not rise during pregnancy in age-matched rats.
MedLine Citation:
PMID:  9918816     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The serum leptin profile and its production in adipose tissue during pregnancy and lactation were investigated along with changes in appetite and factors reflecting nutritional status in 11-week-old rats. Serum leptin levels in pregnant rats were stable except on day 20 of pregnancy and significantly reduced during lactation compared to nonpregnant rats (P < 0.001). Circulating leptin levels corresponded with changes in appetite during pregnancy and postparturition. Leptin mRNA in parametrial adipose tissue reflected the circulating levels, also being significantly reduced during late pregnancy and during lactation (P < 0.05). Leptin mRNA expression was observed in placenta, but the amount suggested little influence on circulating leptin levels. These results indicate that reduction in leptin mRNA in parametrial adipose tissue and circulating leptin levels may increase appetite during late pregnancy and lactation and may play a role in regulating metabolic homeostasis around parturition in rats.
Authors:
Y Terada; K Yamakawa; A Sugaya; N Toyoda
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biochemical and biophysical research communications     Volume:  253     ISSN:  0006-291X     ISO Abbreviation:  Biochem. Biophys. Res. Commun.     Publication Date:  1998 Dec 
Date Detail:
Created Date:  1999-02-09     Completed Date:  1999-02-09     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0372516     Medline TA:  Biochem Biophys Res Commun     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  841-4     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, Mie University School of Medicine, Tsu, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / chemistry
Age Factors
Animals
Appetite
Blood Glucose / analysis
Body Weight
Female
Insulin / blood
Labor, Obstetric / blood*
Leptin
Male
Nutritional Status
Pregnancy
Pregnancy, Animal / blood*
Proteins / analysis*,  genetics
RNA, Messenger / analysis
Rats
Rats, Sprague-Dawley
Triglycerides / blood
Uterus / chemistry
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Leptin; 0/Proteins; 0/RNA, Messenger; 0/Triglycerides; 11061-68-0/Insulin

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


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