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Schematic representation of changes that occur in a healthy knee joint (I) upon OA degenerative process (II): (a) osteophytes production; (b) cartilage thinning; (c) cartilage fragmentation. (III) The table reports a few miRNAs cited within the text, which are differentially expressed in OA cartilage, compared to healthy cartilage. ↑ = enhanced expression; ↓ = lowered expression.
