Fig. 7.

Representatives photomicrographs of the lung, liver and heart as stained by H&E. The lung, liver and heart tissues were found unaffected by the treatment of transduced hUC-MSCs, as evidenced by normal tissues architecture, without any observable lesion. Red arrows indicate pulmonary haemorrhage; black arrows indicate glycogenesis and white arrows indicate vacuolization. All images taken at 100x magnification. The scale bars represent 50 μm.