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Obesity and Diabetes

Catabolic action of insulin not enhanced by exogenous 'tub' expression

Published in Obesity and Diabetes Week, August 9th, 2004

The catabolic action of insulin in rat arcuate nucleus is not enhanced by exogenous 'tub' expression.

"The central nervous system (CNS) protein 'tub' has been identified from the genetically obese 'tubby' mouse. Although the native function of tub in situ is not understood, cell-based studies suggest that one of its roles may be as an intracellular signaling target for insulin. In normal animals, insulin acts at the hypothalamic arcuate nucleus (ARC) to regulate energy balance," scientists in the United States report.

"Here we used a herpes simplex viral expression system to evaluate whether tub overexpression in the ARC of normal rats enhances this...

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