Figure 2
From: Changes in Aβ non-nociceptive primary sensory neurons in a rat model of osteoarthritis pain
Tissue edema and plasma extravasation of the knee joint in naïve control rats and OA rats. A, significantly increased edema was found in OA knee joints (0.56 ± 0.02 g, N = 7 in OA vs. 0.47 ± 0.01 g, N = 7 in control; P = 0.002; Student's t-test). B, optical densities of Evans blue in knee joint soft tissue were significantly higher than that of the naïve control knee (0.17 ± 0.02 g, N = 7 in OA vs. 0.1 ± 0.01 g, N = 7 in control; P = 0.029; Student's t-test).