Figure 6
From: Injectable hyaluronic-acid-doxycycline hydrogel therapy in experimental rabbit osteoarthritis
The expression pattern of proteoglycan in the microscopic appearance of OA pathology. Histological examination of Alcian-blue stained sections of cartilage from the femoral condyles (left panels) and the tibial plateau (right panels) at 300 X magnifications. The samples from the NT (A), HA (B), DOX (C), and HA-DOX hydrogel groups (D) were processed separately. The normal-young group (13-week-old rabbits) (E) and the normal-old group (40-week-old rabbits) (F) did not receive intra-articular treatments.