Representative photomicrographs of murine intestinal enterocytes. (A) and (C) are from phosphate buffered saline (PBS) treated mice (control); (B) and (D) are from mice after 10 days of treatment with h[Gly2]GLP-2 (5 μg). Note the longer microvilli in h[Gly2]GLP-2 treated mice (B) compared with controls (A) (bar=200 μm). The arrowhead in (B) indicates an endosome containing HRP. Note the increased cell length in h[Gly2]GLP-2 treated mice (D) compared with controls (C) (bar=100 μm).