Generation of Mgat2 -deficient mice. (A) Schematic diagram of the derivation of Mgat2-deficient mice by homologous recombination. (B) Southern blotting of genomic DNA. (C) mRNA levels of Mgat2 in the duodenum. (D) Intestinal MGAT activity. Each bar represents mean ± SEM. n = 3–5 per group. *P < 0.05, **P < 0.01, ***P < 0.001 vs. +/+.