Fig. 2.

hPMSCs promoted increased testicular weight and size and improved semen parameters in a busulfan-induced testis toxicity mouse model. a The sperm count, normal morphology, motility, and proportion of viable cells were determined in the three groups after hPMSC therapy. b–d Variation in the weight, length, and width of the mouse left testis in the three groups after hPMSC treatment. e–g Variation in the weight, length, and width of the mouse right testis in the three groups after hPMSC treatment. The error bars indicate the SD. **p < 0.01,***p < 0.001