Fig. 4From: The protective mechanism of SIRT1 on cartilage through regulation of LEF-1A β-catenin: Immunofluorescence experiment results, 200 × , scale bar = 100 μm; B LEF-1: Immunofluorescence experiment results, 200 × , scale bar = 100 μm; C MMP-13: Immunofluorescence experiment results, 200 × , scale bar = 100 μm ((***P < 0.001); ##P < 0.01))Back to article page