To examine the role of matrix metalloproteinases(MMP) expressed by the tartrate-resistant acid phosphatase (TRAP)-positive mononuclear and multinucleated cells in articular cartilage damage.

• 基质金属蛋白酶-2、9在耐酒石酸盐酸性磷酸酶(TRAP)阳性的单个核及多核细胞中的表达及其在关节软骨损伤中的作用。