Figure 1From: Studies on Xenopus laevisintestine reveal biological pathways underlying vertebrate gut adaptation from embryo to adultMorphological, histological and gene expression changes associated with X. laevis intestinal remodeling during natural metamorphosis. Representative metamorphic stages and the corresponding intestine evaluated with H&E (arrowheads indicate the islets of proliferating cells), TUNEL assay (arrows indicate the apoptotic cells), and BrdU immunohistochemistry (arrows indicate proliferating cells). Scale bar = 100 μm. AE:adult epithelial; Ct: connective tissue; Ep: epithelium; m: muscle; Ty: typhlosole. The schematic representation at the bottom summarizes the major changes associated with the stage-dependent transition.Back to article page