Document Detail

The rise in growth hormone during starvation does not serve to maintain glucose levels or lean mass but is required for appropriate adipose tissue response in female mice.
MedLine Citation:
PMID:  23150490     Owner:  NLM     Status:  MEDLINE    
In mice, GH levels rise in response to short-term fasting or starvation (food restriction to 40% of ad libitum intake), similar to that which occurs in humans in response to fasting or anorexia. Recent studies using acyl-ghrelin knockout mice have suggested that the rise in GH during food restriction is essential to support glucose levels. To directly test this hypothesis, adult-onset isolated GH deficient (AOiGHD) mice and their GH-replete littermate controls were provided 40% of ad libitum food intake for 11 d. As previously shown, food restriction increased GH levels in controls, and this response was not observed in AOiGHD mice. In both controls and AOiGHD, food restriction resulted in an initial decline in glucose, which stabilized to 82-85% of ad libitum-fed values by d 2. In addition, loss of lean mass in response to food restriction was not altered by GH status. However, the loss of fat mass and the associated rise in circulating free fatty acids and ketones was blunted in starved AOiGHD mice compared with controls. Taken together, these results suggest a rise of GH during starvation is not required to support glucose levels and muscle mass but may be important in supporting fat mobilization.
Manuel D Gahete; José Córdoba-Chacón; Raúl M Luque; Rhonda D Kineman
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2012-11-13
Journal Detail:
Title:  Endocrinology     Volume:  154     ISSN:  1945-7170     ISO Abbreviation:  Endocrinology     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-12-25     Completed Date:  2013-02-22     Revised Date:  2014-01-09    
Medline Journal Info:
Nlm Unique ID:  0375040     Medline TA:  Endocrinology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  263-9     Citation Subset:  AIM; IM    
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MeSH Terms
Adipose Tissue / metabolism*
Blood Glucose / metabolism*
Eating / physiology
Enzyme-Linked Immunosorbent Assay
Growth Hormone / blood*
Real-Time Polymerase Chain Reaction
Starvation / physiopathology*
Grant Support
Reg. No./Substance:
0/Blood Glucose; 9002-72-6/Growth Hormone

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

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