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. 2021 Mar 4;8:617789. doi: 10.3389/fvets.2021.617789

Figure 7.

Figure 7

Effect of undenatured type II collagen (UC-II) on knee joint protein expression of metalloproteinase 3 (MMP-3; A), collagen type 1 (COL-1; B), osteoprotegerin (OPG; C), and receptor activator of NF-κB ligand (RANKL; D) levels in monosodium iodoacetate (MIA) induced osteoarthritis rats (n = 7). The densitometric analysis of the relative intensity according to the control group of the western blot bands was performed with β-actin normalization to ensure equal protein loading. Blots were repeated at least three times (n = 3) and representative blots are shown. The bars represent the mean and standard deviation of data. ANOVA and Tukey's post-hoc test were used to compare the results among different treatment groups. Statistical significance between groups is shown by: ***P < 0.001 as compared to the control group and, ### P < 0.001 as compared to MIA group.