"NEW YORK - Stem cell injections worked remarkably well at easing symptoms of muscular dystrophy in a group of golden retrievers, a result that experts call a significant step toward treating people.

"It's a great breakthrough for all of us working on stem cells for muscular dystrophy," said researcher Johnny Huard of the University of Pittsburgh.

Sharon Hesterlee, vice president of translational research at the Muscular Dystrophy Association, called the result one of the most exciting she's seen in her eight years with the organization. Her organization helped pay for the work."

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