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EVMS researchers identify potential target for treatment of obesity-related diseases
Date:4/14/2010

Scientists from Eastern Virginia Medical School (EVMS) recently presented preliminary research findings that identify a specific gene as a potential new target for treating obesity-related diseases.

Two research studies funded by grants from the National Heart, Lung and Blood Institute of the National Institutes of Health (NIH) examined the role of a gene called STAT4 in the development of Type 2 diabetes and other obesity-related cardiovascular diseases. The research was presented at the 2010 annual meeting of the American Heart Association's Council on Atherosclerosis, Thrombosis and Vascular Biology.

"We've known for some time that STAT4 is a 'gene switch,' meaning it is one of the genes that regulates or 'turns on' immune cells. But, our preliminary findings indicate that STAT4 is also involved in the metabolic process," says Anca D. Dobrian, PhD, assistant professor of physiology and lead author of one of the studies.

"Specifically, we've found that STAT4 appears to be involved in insulin resistance as well as the development of atherosclerosis," adds Elena V. Galkina, PhD, assistant professor of microbiology and molecular cell biology. "Assuming these results in rodent-models hold true for humans, STAT4 offers a potentially attractive target for therapy."

Early findings in these studies indicate that insulin resistance and atherosclerosis, a condition characterized by the thickening of artery walls due to fatty plaque deposits, occur in conjunction with elevated levels of STAT4.

The researchers learned that eliminating STAT4 in rodent models reduced the development of atherosclerosis. Similarly, eliminating STAT4 in rodent models given a high-fat diet revealed that while the rodents gained the same amount of weight as rodents with the gene, they did not develop insulin resistance which is a risk factor for Type 2 diabetes and other heart problems.

"Basically," says Jerry Nadler, MD, director of the
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Contact: Jina Gaines
gainesjn@evms.edu
757-446-7070
Eastern Virginia Medical School
Source:Eurekalert

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