Department of Biology, University of Rome "Tor Vergata," Rome. Department of Cellular Biotechnologies and Hematology, Faculty of Pharmacy and Medicine, Sapienza University of Rome, Rome. Pasteur Institute-Fondazione Cenci Bolognetti, Rome. National Institute of Health and Science on Aging (INRCA), Nutrition and Ageing Centre, Scientific and Technological Research Area, Ancona. IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna. Department of Experimental, Diagnostic and Specialty Medicine, Bologna, Italy. CIG-Interdepartmental Center "L. Galvani," Alma Mater Studiorum, University of Bologna, Bologna, Italy. Institute of Nutritional Medicine (180c), University of Hohenheim, Stuttgart. German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), Nuthetal. Department of Biology, Molecular Toxicology Group, University of Konstanz, Konstanz, Germany.