Scientists Discover ‘Hulk’ Protein

September 4, 2012 at 10:27 am | Posted in Diet, Fitness | Leave a comment
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Australian scientists have suggested that a protein called Grb10 plays a crucial role in increasing muscle mass during development.

By John Shanks

Outside of aesthetics, this study has important implications for a wide range of conditions that are worsened by, or cause muscle wasting, such as injury, muscular dystrophy, Type 2 diabetes, and problems produced by muscle inflammation.

“By identifying a novel mechanism regulating muscle development, our work has revealed potential new strategies to increase muscle mass,” said lead author Dr Lowenna Holt of the Diabetes and Obesity Research Program at the Garvan Institute of Medical Research in Sydney, Australia. “Ultimately, this might improve treatment of muscle wasting conditions, as well as metabolic disorders such as Type 2 diabetes.”

To make this discovery, Dr Holt’s team compared two groups of mice. Once group had disruption of the Grb10 gene, and were very muscular. The other group, where the Grb10 gene was functional, had normal muscles. The researchers examined the properties of the muscles in both adult and newborn mice and discovered that the alterations caused by loss of Grb10 function had mainly occurred during prenatal development.

Read the rest of this at Sci-News

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