Effect of Payena dasyphylla methanolic bark extract on the hyaluronidases enzymes expression. Gel image (A) shows the zymography result represented from three independent experiments, while (B) shows the histogram of hyaluronidases enzyme from the same experiment. C; human chondrocytes cells (NHAC-kn) were cultured with medium alone (lane 1), cells induced with IL-1β (lane 2), cells induced and treated with Payena dasyphylla bark methanolic extract at 25, 50 and 100 μg/mL (lane 3,4 and 5 respectively) and cells induced with Apigenin (lane 6). Protein extracts prepared from the conditioned-medium of cultured NHAC-kn were subjected to SDS-PAGE co-polymerized with hyaluronan and electrophoresed. The gels were then stained with Alcian blue staining solution, destained and detected for cellular hyaluronidase expression. ***P < 0.001, **P < 0.01 and *P < 0.05 significantly different from IL-1β treated control group.