Fig. 9
Effects of BM-MSCs and AT-MSCs on TH-IR nerve fibres in the myenteric plexus. a-d′ TH-IR nerve fibres in the myenteric plexus at 24 h a-d and 72 h a′-d′. Scale bar = 100 μm. e Area percentage quantification of TH-IR nerve fibres within a 1 mm2 area of the myenteric plexus in the guinea-pig colon. *p < 0.05, **p < 0.01, n = 3 animals/group/time point. BM-MSCs bone marrow-derived mesenchymal stem cells, AT-MSCs adipose tissue-derived mesenchymal stem cells, TH tyrosine hydroxylase, IR immunoreactive