How blocking one protein regenerates knee cartilage in aging mice and human tissue | The Optimist Daily July 4, 2026 by Leo Leave a Comment A Stanford study found that blocking 15-PGDH, a protein that doubles in aging joints, regenerates cartilage and prevents post-injury arthritis. Source: How blocking one protein regenerates knee cartilage in aging mice and human tissue | The Optimist Daily Promising.
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