Fig. 2.

(A) Representative immunofluorescence photomicrographs of von Willebrand factor (vWF) staining in the lungs of P70 rats. vWF was labeled with green fluorescent marker 5(6)-carboxyfluoresceindiacetate N-succinimidyl ester and the nuclei were labeled with 4',6-diamidino-2-phenylindole (blue) (scale bars; 25 um). (B) The immunofluorescence density of vWF per lung section. Data are expressed as mean±SEM; ^*p<0.05 versus NC; ^†p<0.05 versus HC. NC, normoxia control group; HC, hyperoxia control group; HM, hyperoxia with human UCB-derived MSCs transplantation group; MSCs, mesenchymal stem cells; SEM, standard error of the mean.