APOE and viral infectious disease: Consistent with these findings and the results of Chen et al. [27], our GO enrichment analysis suggests that the differentially expressed mRNAs and lncRNAs in ApoE−/− mice are involved in oxidation–reduction, steroid metabolism and transport, steroid biosynthesis, regulation of blood pressure, cholesterol metabolism, regulation of the force of heart contraction, virus infection response, and immune response.