APOE and diabetes mellitus: We selected a subset of 1586 samples from APOE\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${\rm{\varepsilon }}$$\end{document}ε4-negative subjects, including 53 patients with diabetes and 166 without diabetes (controls) according to defined diabetes criteria (see “Methods”).