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Activating brown fat: Research finding may lead to new treatments for obesity and Type 2 diabetes

Date:
October 29, 2011
Source:
University of Cincinnati Academic Health Center
Summary:
Activating a specialized type of fat, known as brown adipose tissue, may help combat obesity as well as result in better glucose control for Type 2 diabetes, according to new research.

Activating a specialized type of fat, known as brown adipose tissue, may help combat obesity as well as result in better glucose control for type 2 diabetes, according to new research conducted by scientists at the UC Metabolic Diseases Institute.

The current UC study suggests that activating brown adipose tissue through targeted inhibition of the cannabinoid receptor 1, also known as CB1, could effectively reduce body weight and blood glucose by increasing calorie burning in brown adipose tissue.

Silvana Obici, MD, and her UC-based team report these findings online ahead of print Oct. 10, 2011, in Diabetologia, the journal of the European Association for the Study of Diabetes.

CB1 receptor antagonists were previously used in human weight loss drugs offered in Europe but were taken off the market due to significant neurologic side effects like depression.

"CB1 antagonists still hold promise for fighting obesity and diabetes -- the challenge is finding one that does not engage the receptors in areas of the brain that control mood and still maintains its enormous calorie-burning properties," explains Obici, senior author of the UC study. "We have shown that the powerful effects of CB1 antagonists on brown adipose tissue are mediated by the sympathetic nervous system. With further study, this could lead to a more effective and safer drug strategy for glucose regulation and weight loss."

Obici is now conducting further studies to determine the specific location of the CB1 receptor in the sympathetic nervous system that activates the calorie-burning, glucose-consuming properties of brown adipose tissue.

"Our findings suggest that the capacity of brown adipose tissue to burn calories and consume glucose is impaired in obesity and type 2 diabetes. If we could find an effective and safe way to reactivate the brown adipose tissue's calorie-burning properties, this could represent a breakthrough in the search of more effective drugs against obesity and diabetes,," Obici adds.

Funding support for this research comes from the National Institutes of Health, American Diabetes Association and Ethicon Endo-Surgery. Researchers involved in this study have no personal financial interests in Ethicon Endo-Surgery.


Story Source:

The above story is based on materials provided by University of Cincinnati Academic Health Center. Note: Materials may be edited for content and length.


Journal Reference:

  1. M. Bajzer, M. Olivieri, M. K. Haas, P. T. Pfluger, I. J. Magrisso, M. T. Foster, M. H. Tschφp, K. A. Krawczewski-Carhuatanta, D. Cota, S. Obici. Cannabinoid receptor 1 (CB1) antagonism enhances glucose utilisation and activates brown adipose tissue in diet-induced obese mice. Diabetologia, 2011; DOI: 10.1007/s00125-011-2302-6

Cite This Page:

University of Cincinnati Academic Health Center. "Activating brown fat: Research finding may lead to new treatments for obesity and Type 2 diabetes." ScienceDaily. ScienceDaily, 29 October 2011. <www.sciencedaily.com/releases/2011/10/111011112807.htm>.
University of Cincinnati Academic Health Center. (2011, October 29). Activating brown fat: Research finding may lead to new treatments for obesity and Type 2 diabetes. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2011/10/111011112807.htm
University of Cincinnati Academic Health Center. "Activating brown fat: Research finding may lead to new treatments for obesity and Type 2 diabetes." ScienceDaily. www.sciencedaily.com/releases/2011/10/111011112807.htm (accessed October 22, 2014).

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