1. Unit of Neurodegenerative Disease, Department of Basic Medicine Sciences, Neuroscience, and Sense Organs, University of Bari ‘Aldo Moro,’, Bari, Italy
2. Unit of Neurodegenerative Disease, Department of Clinical Research in Neurology, University of Bari ‘Aldo Moro’ at ‘Pia Fondazione Card. G. Panico,’, Tricase, Lecce, Italy
3. Geriatric Unit and Gerontology-Geriatrics Research Laboratory, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
4. Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
5. Laboratory of Clinical Chemistry, Department of Clinical Pathology, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
6. Institute of Neurology, Catholic University of Sacred Heart, Rome, Italy