FIGURE 3.
Low-normal total cholesterol (TC) levels correlated with reduced gray matter volume (GMv) in three medial temporal regions in the low TC (lTC) group. Three significant clusters were identified, including the bilateral anterior hippocampus (HIP)/parahippocampal cortex (HPC), and the right inferior temporal lobe (ITL). Age, gender, education years, Geriatric Depression Scale, patient category, whether or not taking medicine for lowering cholesterol, apolipoprotein (APO)E ε4 carrier status, and brain size were controlled (see section “Materials and Methods”). Thresholds, p < 0.001 (Threshold-Free Cluster Enhancement, uncorrected, voxel-wise), p < 0.05 [family-wise error rate (FWE) corrected at cluster level], and cluster size (≥50 voxels). TFCE, threshold-free cluster enhancement.