Effect of six polysaccharides in formulas derived from Yaotongning on expression of inflammatory cytokines in macrophages and proliferation of chondrocyte A Comparison of Chemical Composition and Bioactivity of Polypeptides from Velvet Antlers of Cervus nippon Temminck and Cervus elaphus Linnaeus Effect of water extracts from Duhuo Jisheng decoction on expression of chondrocyte G1 phase regulator mRNA Inhibition of Hydrogen Peroxide Production in Chondrocytes Induced by Fulvic Acid by Ginger Volatile Oil