Fig. 5

a Representative Safranin O-fast green stained histological section of each group. b Osteoarthritis Research Society International (OARSI) histological score in the control (n = 6) and the anterior cruciate ligament transection (ACLT) rabbit osteoarthritis (OA) model (each model, n = 5). Values are presented as the means ± standard deviations (error bars). *P < 0.01, compared between groups