rdf:type |
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lifeskim:mentions |
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pubmed:issue |
2
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pubmed:dateCreated |
2006-8-7
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pubmed:abstractText |
Suppressor of cytokine signaling-3 (Socs-3) negatively regulates the action of various cytokines, as well as the metabolic hormones leptin and insulin. Mice with haploinsufficiency of Socs-3, or those with neuronal deletion of Socs-3, are lean and more leptin and insulin sensitive. To examine the role of Socs-3 within specific neurons critical to energy balance, we created mice with selective deletion of Socs-3 within pro-opiomelanocortin (POMC)-expressing cells. These mice had enhanced leptin sensitivity, measured by weight loss and food intake after leptin infusion. On chow diet, glucose homeostasis was improved despite normal weight gain. On a high-fat diet, the rate of weight gain was reduced, due to increased energy expenditure rather than decreased food intake; glucose homeostasis and insulin sensitivity were substantially improved. These studies demonstrate that Socs-3 within POMC neurons regulates leptin sensitivity and glucose homeostasis, and plays a key role in linking high-fat diet to disordered metabolism.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
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pubmed:month |
Aug
|
pubmed:issn |
1550-4131
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
4
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
123-32
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:16890540-Animals,
pubmed-meshheading:16890540-Cells, Cultured,
pubmed-meshheading:16890540-Dietary Fats,
pubmed-meshheading:16890540-Fatty Liver,
pubmed-meshheading:16890540-Glucose,
pubmed-meshheading:16890540-Homeostasis,
pubmed-meshheading:16890540-Leptin,
pubmed-meshheading:16890540-Mice,
pubmed-meshheading:16890540-Mice, Knockout,
pubmed-meshheading:16890540-Pro-Opiomelanocortin,
pubmed-meshheading:16890540-Signal Transduction,
pubmed-meshheading:16890540-Suppressor of Cytokine Signaling Proteins,
pubmed-meshheading:16890540-Weight Loss
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pubmed:year |
2006
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pubmed:articleTitle |
Enhanced leptin sensitivity and improved glucose homeostasis in mice lacking suppressor of cytokine signaling-3 in POMC-expressing cells.
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pubmed:affiliation |
Division of Endocrinology, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, Massachusetts 02215, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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