APOE and Alzheimer disease: Among the normal chow-fed ApoE (−/−) mice, the mean baseline total cholesterol levels before virus injection were 416.7 ± 81.7 mg/dL in the AD-ApoE Kyoto group, 406.9 ± 29.1 mg/dL in the AD-ApoE Sendai group, 521 ± 50.6 mg/dL in the AD-ApoE3 group, 403.6 ± 50.9 mg/dL in the AD-eGFP group, and 316.8 ± 26.4 mg/dL in the ApoE (−/−) group.