Fig. 4

Transplantation of hAD-MSCs increases body and reproductive organ weights of POI rats. a,b Representative photographs of rats at 4 weeks after cell transplantation (a), and the changes in body weight before and after cell transplantation (b). c,d Representative photographs of ovaries at 4 weeks after cell transplantation (c), and the changes in ovary weight after cell transplantation (d). e,f Representative photographs of uteruses at 4 weeks after cell transplantation (e) and the changes in uterus weight after cell transplantation (f). a the control group, b the primary ovarian insufficiency (POI) group, c the human adipose-derived mesenchymal stem cells (hAD-MSCs) group, d the low-intensity pulsed ultrasound (LIPUS) + hAD-MSCs group. *P < 0.05, **P < 0.01