Fig. 4From: Age-dependent genetic regulation of osteoarthritis: independent effects of immune system genesHistological analysis of OA in C57BL/6 J mice aged 8 months. Medial/lateral knee compartments stained with Safranin O/Fast green. Eight-month female (A). Eight-month male (B). Total joint OARSI score of C57BL/6 J cohort, n = 6 (C)Back to article page