Objective: To observe the effect of Guyanding to the proliferation of cultured human chondrocytes in vitro, and the level of expression of type II collagen and iNOS under influence of IL-1.And discuss the mechanism of cartilage protection with Guyanding recipe.Method: Human chondrocytes were obtained from femoral head cartilage came from femoral neck fracture THA surgery and cultured in vitro. The Guyanding was filtrated by grug sera and used in the culture solution. All chondrocytes were divided into four ...