Fig. 8From: Antioxidant PDA-PEG nanoparticles alleviate early osteoarthritis by inhibiting osteoclastogenesis and angiogenesis in subchondral bonePDA-PEG NPs attenuate cartilage degradation. a S&F and b H&E staining of the medial compartments of the knee joints, ×50 magnification. c OASRI score for assessing the cartilage degradation. n = 3. Symbol “*” denotes p < 0.05, “**” denotes p < 0.01, NS indicates not significantBack to article page