Figure 1: Effect of various doses of hWJMSCs on the level and inhibitory activity of lung TNF-α in the ARDS rat model. (A-B) TNF-α level was determined by ELISA and total protein assay, respectively. (C) The inhibitory rate of TNF-α was calculated. Data are presented as mean±SD of pentaplicates and analyzed by one-way analysis of variance followed by Tukey HSD post hoc test. Different letters show a significant difference, P<0.05.