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iMSC therapy increased nNOS expression and the weight of the penis. (A, D) Immunofluorescentstaining of nNOS in penile tissue from the sham, PBS, adMSC, and iMSC groups. (B-C) nNOS protein expression in penile tissues from the four groups was determined by western blot. (E) Penile tissue weight to body weight ratios were evaluated in the four groups. Error bars: mean ± SD. *p<0.05, **p<0.01 comparison with PBS group.
