Fig. 4From: Overexpression of aquaporin 4 in articular chondrocytes exacerbates the severity of adjuvant-induced arthritis in rats: an in vivo and in vitro studyCorrelations between AQP4 protein levels in cartilage tissues of AIA rats and secondary paw swelling on day 26 (a) or total pathological scores on joint damage (b). The correlation analysis was performed by Pearson’s correlation test (n = 15). Asterisks (*) show the significance of the correlation. ** p < 0.01Back to article page