Zebrafish Head (IMAGE)

University of Southern California

Zebrafish Head

Caption

Muscle and Medicine reported that hundreds of NFL players have invested in using stem cells to treat injuries. The publication revealed one NFL linebacker 'paid $6,000 a pop for a 1-milliliter vial of donated placenta tissue containing stem cells to be injected into each of his beat-up knees.' Now USC research shows that stem cells could one day be stimulated to make a special type of cartilage to help repair large, hard-to-heal bone fractures.

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Sandeep Paul and Seth Ruffins

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