1. Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy;
2. Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, University of Catania, Catania, Italy;
3. Division of Clinical Biochemisty and Clinical Molecular Biology, University of Rome “Tor Vergata”, Rome, Italy;
4. Dipartimento Medicina Laboratorio, Tor Vergata University Hospital, Rome, Italy;
5. Department of Preventive Medicine & Public Health, School of Medicine, University of Navarra-IDISNA, Pamplona, Spain;
6. CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Institute of Health Carlos III, Madrid, Spain