
Keywords: GO، Gene Onology; NOFH, non-traumatic osteonecrosis of femoral head; OA, osteoarthritis; qRT-PCR, quantitative real-time PCR; SAM, Significance Analysis of Microarrays; GO, gene ontology; MMP, metalloproteinaseOsteonecrosis of femoral head; Hip osteoarthritis; Cartilage; G