1. Department of Chemistry, Biochemistry, & Molecular Biology Section, Faculty of Medicine, University of Catania, Catania, Italy.
2. Department of Chemistry, Center of Membrane Sciences, and Sander-Brown Center on Aging, University of Kentucky, Lexington, Kentucky.
3. Department of Neurological Sciences, Faculty of Medicine, University of Catania, Catania.
4. Institute of Pharmacology, Catholic University School of Medicine, Rome, Italy.