Mice carrying a Cre-inducible allele of Nampt infected with AAV-Cre (denoted as NAAVcre) and littermate controls (NAAVgfp or WTAAVcre) were subjected to 2/3 partial hepatectomy and analyzed 36 hours later.
(A) Immunofluorescence showing over-expression of Nampt in peri-portal and peri-central venous areas of NAAVcre mice. Inset shows an enlarged view of NAAVcre.
(B) Fasting blood glucose.
(C) Left: Photographs of regenerating livers. Right: Liver to body weight ratios.
(D) Left: Proliferating hepatocytes identified by EdU detected by immunofluorescence (green) and counterstained with DAPI (blue). Inset shows an enlarged view of NAAVcre. Right: Quantification of EdU-positive hepatocytes (n=5/group).
(E) Hepatic triglyceride content.
(F) Left panels: representative liver sections stained with H&E. Right panels: lipid accumulation by Oil Red O.
Error bars represent S.E.M. *, p < 0.05; **, p < 0.01; ***, p < 0.001.