GLP-2 treatment improves hepatic inflammation and fibrosis in Mdr2-/-mice. (A) Representative hematoxylin-eosin images (×10 magnification) with markedly improved liver histology in Mdr2-/- mice treated with GLP-2. Serum biochemistry reflects unchanged levels of transaminases (alanine aminotransferase, aspartate aminotransferase) and alkaline phosphatase. Representative Mac-2 and Sirius red (SR) pictures (×10 magnification) show reduced hepatic inflammation and fibrosis in Mdr2-/- mice treated with GLP-2. (B) Real-time polymerase chain reaction was used to assess the mRNA expression of inflammatory and fibrotic markers F4/80, Mcp1, iNOs, Col1a1, Col1a2, and Tgfβ, which were significantly reduced in Mdr2-/- mice treated with GLP-2. mRNA expression values were normalized against 36b4 levels and are shown relative to the expression level in Mdr2-/- control subjects. ∗Significant difference from Mdr2-/- control mice; P < .05. Computational analysis of histologic pictures was done via Image J 1.51j8. ALT, alanine aminotransferase; AP, alkaline phosphatase; AST, aspartate aminotransferase.