Fig. 4
hADMSC-sEVs improved the fat graft survival rate in the nude mouse model. a Gross observation of the grafted fat demonstrated that the hADMSC-sEVs group (the left side of each picture) had larger graft sizes and heavier weight compared to that in the control group (the right side of each picture). b, c 1, 2, and 3 months after fat grafting, the weight (measured by the balance) and volume (measured by the liqiud outflow method) of grafted fat were significantly better in the hADMSC-sEVs group compared to the control group (*p < 0.05, **p < 0.01, ***p < 0.001,****p < 0.0001)