CD8A and Parkinson disease: Our method successfully identified potential gene signatures differentially expressed in B cells, natural killer (NK) cells prior to the onset of pancreatic \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\beta$$\end{document}β-cell autoantibodies, and those in CD8+ T cells, NK cells for Parkinson’s disease.