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New Ways to Heal Arthritis Approach Clinical Stage

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  Stem cells, Bio Scaffolds with 3D Printing Repair Knee Medicine & Science ◆ Regenerative Biology ◆ April 2026 Orthopedic Medicine The Race to Regrow What Was Lost: Cartilage Regeneration Enters the Clinic A landmark Stanford study, a San Diego startup's Phase 1 data, and a global surge in stem cell and gene-editing trials are converging on a long-elusive goal — restoring the tissue that keeps joints moving, without surgery. Published · April 7, 2026 Peer Review Status · Reported from primary literature Bottom Line Up Front The breakthrough: A November 2025 study published in the journal Science found that a protein called 15-PGDH builds up in aging joints and quietly drives cartilage destruction. Blocking it with a drug caused real cartilage — the smooth, load-bearing kind — to grow back in elderly mice and in human knee tissue removed during joint replacement surgery. Where things stand clinically: A San Diego company ...
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The Race to Regrow What Was Lost:

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Medicine & Science ◆ Regenerative Biology ◆ April 2026 Orthopedic Medicine Cartilage Regeneration Enters the Clinic A landmark Stanford study, a San Diego startup's Phase 1 data, and a global surge in stem cell and gene-editing trials are converging on a long-elusive goal — restoring the tissue that keeps joints moving, without surgery. Research Correspondent · Scientific American Published · April 7, 2026 Peer Review Status · Reported from primary literature Bottom Line Up Front What's new: A November 2025 Science paper from Stanford Medicine identified 15-PGDH — an aging enzyme called a gerozyme — as a master driver of cartilage loss, and showed that blocking it regenerates true hyaline cartilage in aged mice and in human tissue explants from knee replacement surgeries. Clinical status: The inhibitor molecule (MF-300) has already completed a human Phase 1 safety trial for sarcopenia, conducted by San Diego–based E...
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Return of the Wisent:

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England Released 4 Bison Into a Dead Forest — What They Did With Bark and Hooves Was Unbelievable - YouTube How Europe's Largest Land Animal Is Rebuilding a Forest That Forgot How to Breathe Hunted to extinction with only 12 zoo survivors, the European bison has staged the most improbable comeback in conservation history — and its reintroduction into a dying English ancient woodland is forcing ecologists to rethink the limits of human-managed restoration. By the Editors, with reporting from Kent, Canterbury, and the Carpathian Mountains Published: April 2026 Bottom Line Up Front The European bison ( Bison bonasus ), driven to wild extinction by 1927, has recovered to more than 12,200 individuals globally — a century-long achievement built on the genetics of just 12 zoo survivors. Since July 2022, a founding herd released into West Blean and Thornden Woods near Canterbury, Kent, England has catalyzed measurable ecological ...
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