Gene therapy research on mice. These mice are mammalian models for the disorder Duchenne Muscular Dystrophy (DMD), a condition in humans typified by muscle wasting and loss of function. The mice have an abnormal gene that, left untreated, caused the muscles in their legs to waste, making them unable to walk. Here, they have been treated by a method of gene therapy known as exon skipping. They are undergoing tests to determine how much their muscles have recovered after treatment. Photographed at the AFM (French Muscular Dystrophy Association), Evry, France.
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