Document Detail

Fatty acid synthase and hormone-sensitive lipase expression in liver are involved in zinc-alpha2-glycoprotein-induced body fat loss in obese mice.
MedLine Citation:
PMID:  21180279     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To explore the effects of zinc-alpha2-glycoprotein (ZAG) on body weight and body fat in high-fat-diet (HFD)-induced obesity in mice and the possible mechanism.
METHODS: Thirty-six male mice were fed with standard food (SF) (n = 9) and HFD (n = 27), respectively. Five weeks later, 9 mice fed with HFD were subjected to ZAG expression plasmid DNA transfection by liposome transfection method, and another 9 mice to negative control plasmid transfection. Two weeks later, serum ZAG level in the mice was assayed by Western blot, and the effects of ZAG over-expression on body weight, body fat, serum biochemical indexes, and adipose tissue of obese mice were evaluated. The mRNA expressions of fatty acid synthase (FAS) and hormone-sensitive lipase (HSL) in liver tissue were determined by reverse transcription-polymerase chain reaction.
RESULTS: Serum ZAG level significantly lowered in simple HFD-fed mice in comparison to SF-fed mice (0.51 +/- 0.10 AU vs. 0.75 +/- 0.07 AU, P < 0.01). Further statistical analysis demonstrated that ZAG level was negatively correlated with body weight (r = -0.56, P < 0.001), epididymal fat mass (r = -0.67, P < 0.001), percentage of epididymal fat (r = -0.65, P < 0.001), and increased weight (r = -0.57, P < 0.001) in simple SF- and HFD-fed mice. ZAG over-expression in obese mice reduced body weight and the percentage of epididymal fat. Furthermore, FAS mRNA expression decreased (P < 0.01) and HSL mRNA expression increased (P < 0.001) in the liver in ZAG over-expressing mice.
CONCLUSIONS: ZAG is closely related to obesity. Serum ZAG level is inversely correlated with body weight and percentage of body fat. The action of ZAG is associated with reduced FAS expression and increased HSL expression in the liver of obese mice.
Feng-Ying Gong; Jie-Ying Deng; Hui-Juan Zhu; Hui Pan; Lin-Jie Wang; Hong-Bo Yang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chinese medical sciences journal = Chung-kuo i hsüeh k'o hsüeh tsa chih / Chinese Academy of Medical Sciences     Volume:  25     ISSN:  1001-9294     ISO Abbreviation:  Chin. Med. Sci. J.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-12-24     Completed Date:  2011-01-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9112559     Medline TA:  Chin Med Sci J     Country:  China    
Other Details:
Languages:  eng     Pagination:  169-75     Citation Subset:  IM    
Department of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China.
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MeSH Terms
Adipose Tissue / metabolism*
Fatty Acid Synthetase Complex / genetics,  physiology*
Liver / enzymology*
Mice, Obese
Seminal Plasma Proteins / blood,  physiology*
Sterol Esterase / genetics,  physiology*
Weight Loss*
Reg. No./Substance:
0/Seminal Plasma Proteins; 0/Zn-alpha-2-glycoprotein; EC Esterase; EC 6.-/Fatty Acid Synthetase Complex

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

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