Altering steroid receptor genes creates fat burn...( dramatically slowing down lesion progre...)

dramatically slowing down lesion progression. Combining the results of this new study with the original "marathon mouse" findings suggests that PPARd drugs could be effective in controlling atherosclerosis by limiting inflammation and at the same time promoting improved physical performance.

Dr. Evans says he is very excited about the therapeutic possibilities related to activation of the PPARd gene. He believes athletes, especially marathon runners, naturally change their muscle fibers in the same way as seen in the genetically engineered mice, increasing levels of fat-burning muscle fibers and thus building a type of metabolic 'shield" that keeps them from gaining weight even when they are not exercising.

But athletes do it through long periods of intensive training, an approach unavailable to patients whose weight or medical problems prevent them from exercise. Dr. Evans believes activating the PPARd pathway with drugs (one such experimental drug already is in development to treat people with lipid metabolism) or genetic engineering would help enhance muscle strength, combat obesity, and protect against diabetes in these patients.

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Contact: Sarah Goodwin
ebpress@bellsouth.net
770-270-0989
Federation of American Societies for Experimental Biology
4-Apr-2005

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