A new treatment that blocks an aging-related protein restored lost cartilage in old mice and helped prevent arthritis after knee injuries. Human cartilage samples showed similar signs of regeneration, raising hopes for a future drug that could repair joints instead of replacing them.
And human tissues, and it’s been shown to be safe in phase I trials.
So saying “in mice” undersells where they are at.
Yeah looks like poster either didn’t read the article or just didn’t read it sufficiently but decided to be reactionary anyways.