Fig. 6From: Isorhynchophylline alleviates cartilage degeneration in osteoarthritis by activating autophagy of chondrocytesHistological analysis of knee cartilage after Isorhy treatment (H&E, safranin-O/green, and IF). A Typical images of hematoxylin–eosin staining, B Images of Safranin O-fast green staining for different groups. C OARSI score of articular cartilage in different groups of rats. D The expression level of Beclin1, MMP3 and MMP13 determined by immunohistochemical. E The expression level of MMP3, MMP13 decided by immunofluorescence. ***P < 0.001Back to article page