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Sub-chronic administration of the 11 beta-HSD1 inhibitor, carbenoxolone, improves glucose tolerance and insulin sensitivity in mice with diet-induced obesity

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Taylor, Ashley, Irwin, Nigel, McKillop, Aine, Flatt, Peter and Gault, Victor (2008) Sub-chronic administration of the 11 beta-HSD1 inhibitor, carbenoxolone, improves glucose tolerance and insulin sensitivity in mice with diet-induced obesity. BIOLOGICAL CHEMISTRY, 389 (4). pp. 441-445. [Journal article]

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DOI: 10.1515/BC.2008.049

Abstract

We have examined the metabolic effects of daily administration of carbenoxolone (CBX), a naturally occurring 11 beta-hydroxysteroid dehydrogenase (11 beta-HSD1) inhibitor, in mice with high fat diet-induced insulin resistance and obesity. Eight-week-old male Swiss TO mice placed on a synthetic high fat diet received daily intraperitoneal injections of either saline vehicle or CBX over a 16-day period. Daily administration of CBX had no effect on food intake, but significantly lowered body weight (1.1-to 1.2-fold) compared to saline-treated controls. Non-fasting plasma glucose levels were significantly decreased (1.6-fold) by CBX treatment on day 4 and remained lower throughout the treatment period. Circulating plasma corticosterone levels were not significantly altered by CBX treatment. Plasma glucose concentrations of CBX-treated mice were significantly reduced (1.4-fold) following an intraperitoneal glucose load compared with saline controls. Similarly, after 16-day treatment with CBX, exogenous insulin evoked a significantly greater reduction in glucose concentrations (1.4- to 1.8-fold). 11 beta-HSD1 gene expression was significantly down-regulated in liver, whereas glucocorticoid receptor gene expression was increased in both liver and adipose tissue following CBX treatment. The reduced body weight and improved metabolic control in mice with high fat diet-induced obesity upon daily CBX administration highlights the potential value of selective 11 beta-HSD1 inhibition as a new route for the treatment of type 2 diabetes and obesity.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Faculty of Life and Health Sciences > School of Pharmacy and Pharmaceutical Science
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Diabetes
ID Code:2916
Deposited By:Professor Peter Flatt
Deposited On:17 Dec 2009 10:10
Last Modified:19 Nov 2012 15:57

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