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β-Catenin signalling was activated in eight week old rat chondrocytes by LiCl treatment. Primary articular chondrocytes were identified by the presence of collagen II and toluidine blue staining (a, ×200). Upon LiCl treatment, higher expressions of β-catenin protein (b, ×400) and mRNA (c) were observed in LiCl-treated adult chondrocytes, as compared to non-treated chondrocytes
