Table 3.

Grading of chronic synovitis. * p < 0.05 OA vs. control; ** p < 0.01 OA vs. control; # p < 0.05 OA vs. EGCG.

L	Ctrl	OA	10 μM EGCG
Hyperplasia	0.25 ± 0.50	0.50 ± 0.55	0.50 ± 0.55
Inflammatory infiltration	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00
activation of synovial stroma	0.50± 0.58	0.50 ± 0.55	0.00 ± 0.00
Total score	0.75 ± 0.50	1.00 ± 0.63	0.50 ± 0.55
R	Ctrl+DMSO	OA+DMSO	10 μM EGCG
Hyperplasia	1.00 ± 0.00	1.33 ± 0.52	1.00 ± 0.00
Inflammatory infiltration	0.50 ± 0.58	0.83 ± 0.75	0.50 ± 0.55
activation of synovial stroma	1.00 ± 0.00	1.00 ± 0.00	1.00 ± 0.63
Total score	2.50 ± 0.58	3.17 ± 0.41 **	2.50 ± 0.55 #