Graphs illustrate changes in clinical status before and after umbilical cord mesenchymal stem cell transplantation. Changes in clinical status from before umbilical cord mesenchymal stem cell transplantation (MSCT) and afterward were assessed based on Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) score (A) and total British Isles Lupus Assessment Group (BILAG) score (B). **P < 0.01 versus before MSCT. ***P < 0.001 versus before MSCT. Error bars mean SD values.