Fig. 6From: Synthesis of crocetin derivatives and their potent inhibition in multiple tumor cells proliferation and inflammatory property of macrophageCytotoxicity of crocetin and its synthesized derivatives A、B in RAW 264.7 cells. Total protein concentration of the cells were determined by BCA assays. Data represent mean ± SD. The results shown were reproduced by at least 6 independent experiments. ** Indicates p < 0.01 for each treatment group compared with 2 μg/ml group; * indicates p < 0.05 for each treatment group compared with 2 μg/ml groupBack to article page