Fig. 2

Amount of collagen and muscle tissues in injury site of the external anal sphincter after laser, human adipose-derived stem cells (hADSCs), and combination of laser and hADSCs (laser + hADSCs) treatments. Data are presented as means ± SEM (n = 3 animal per group). ***Significant level at p < 0.0001 with the sphincterotomy group. ^###Significant level at p < 0.0001 with the control group (intact animals). ^$$$Significant level at p < 0.0001 with the laser + hADSCs group. ^†Significant level at p < 0.05 with the hADSCs group. Mallory’s trichrome staining, external anal sphincter, rabbit (× 20)