APOA1 and colitis: The gene expression of ApoA1, the major component of HDL-cholesterol, expression was not changed in both the liver and ileum (Fig 3M and 3N), however, the expression of ABCA1 that has important role in the formation of nascent HDL-cholesterol, was significantly decreased in the liver of FMT-colitis group when compared with FMT-control group (Fig 3N).