Fig 1: The characterization of umbilical cord‐derived mesenchymal stem cells (UCMSCs). (a) Optical microscope used to examine the morphological characteristics of UCMSCs, scale bars = 100 μm. (b) Flow cytometer analyzed the expression of CD11b, CD34, CD44, CD73, CD90 and CD105. (c) Oil red O staining, alizarin red staining, and ALP staining were used to detect the differentiation abilities of UCMSCs, scale bars = 100 μm. Data are shown as mean ± SD (n = 3). SD, standard deviation; UCMSCs, umbilical cord‐derived mesenchymal stem cells.