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Cell type differences in deposition of newly synthesized sGAG are illustrated by Safranin-O staining. Cell-agarose constructs treated with (middle panels) or without (left panels) TGF-β1 for 16 days were compared with sections of native articular cartilage or midstubstance meniscal fibrocartilage (right panels). Sections were counterstained with fast green and hematoxylin. Scale bar = 100 μm; inset scale bar = 25 μm.
