1. M. Martucci, F. Biondi, E. Bellavista, C. Fabbri, C. Bertarelli, S. Salvioli, M. Capri, and A. Santoro are with the Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy. R. Ostan, S. Salvioli, M. Capri, and A. Santoro are with the Interdepartmental Center “L. Galvani” (CIG), University of Bologna, Bologna, Italy. C. Franceschi is with the Institute of Neurological Sciences (IRCCS), Bologna, Italy.