Fig. 6

Cartilage thickness and histological scores of medial tibia plateaus. a Normalized cartilage thickness in untreated, PC-treated, and PC-E treated guinea pigs are 1 (±0.11), 1.31 (±0.13), and 1.18 (±0.10).* p < 0.01, versus controls. b Histological scores of medial tibia plateau in the meniscectomied right knee in untreated, PC, and PC-E treated guinea pigs are 11.95 (±1.05), 6.43 (±0.93), and 8.24 (±0.1.37). Histological scores of medial tibia plateau in the non-operated left knee in untreated, PC, and PC-E treated guinea pigs are 8.11 (±1.39), 3.72 (±0.91), and 5.74 (±0.12). * p < 0.05, versus controls. c Histological scores of the peripheral area of medial tibia plateau in the non-operated left knee and the meniscectomied right knee of untreated guinea pigs are 2.92 (±0.45) and 8.67 (±0.74). Histological scores of the peripheral area of medial tibia plateau in the meniscectomied right knee of PC and PC-E treated guinea pigs are 4.59 (±0.81) and 6.42 (±0.0.86). * p < 0.05, versus controls