RESUMEN
BACKGROUND:Tougu Xiaotong capsule is the clinical prescription for the treatment of osteoarthritis in Fujian University of Traditional Chinese Medicine, and the previous studies mainly focus on effect to cartilage. OBJECTIVE:To observe the effect of Tougu Xiaotong capsule on the proliferation and differentiation of osteoblasts as wel as the expressions of bone remodeling correlated factors. METHODS:Rat osteoblast-like cel line ROS17/2.8 cel s were incubated with Tougu Xiaotong capsule. The ROS17/2.8 cel s were divided into blank control group and Tougu Xiaotong capsule groups with different concentrations. The cel proliferation was determined by methylthiazolyldiphenyl-tetrazolium bromide assay. Osteoblast differentiation biomarkers alkaline phosphatase activity, osteocalcin and bone mineralized nodules were measured with colorimetry, enzyme-linked immunosorbent assay and alizarin red staining, respectively. The real-time PCR and enzyme-linked immunosorbent assay were used to detect the expressions of bone remodeling factors osteoprotegerin/receptor activator of nuclear factorκB ligand. RESULTS AND CONCLUSION:Compared with the control group, the Tougu Xiaotong capsule with the concentration of 0.25-2 g/L could significantly promote the ROS17/2.8 cel proliferation (Ppercentage of bone remodeling factors osteoprotegerin/receptor activator of nuclear factorκB ligand (Pproliferation and differentiation of osteoblasts and bone remodeling.