Fig. 6

Western blot analyses for AQP4 in cultured articular chondrocytes. a Representative examples of AQP4 protein expressions in various cell groups: normal articular chondrocytes, AIA articular chondrocytes, AIA articular chondrocytes treated with acetazolamide (25 or 100 μM). b Semi-quantitative statistical graph of AQP4 protein levels in various chondrocytes groups, β-actin serves as the house-keeping protein. Data are mean ± SEM (n = 6). ^** p < 0.01 compared with normal articular chondrocytes group. ^## p < 0.01 compared with AIA articular chondrocytes group