1. Research Center “The Great Senescence,” University of Catania, Catania, Italy.
2. Department of Internal Medicine and Systemic Diseases, University of Catania, Catania, Italy.
3. Department of Microbiology, University of Catania, Catania, Italy.
4. Policlinico Universitario, University of Catania, Catania, Italy.
5. Department of Neurosciences, University of Catania, Catania, Italy.