Clinic of Internal Medicine, Section D, Department of Medicine, University of Verona, 37134 Verona, Italy. luca.dallecarbonare@univr.it. Specialized Regional Center for Biomolecular and Histomorphometric Research for Skeletal and Degenerative Diseases, 37134 Verona, Italy. luca.dallecarbonare@univr.it. Clinic of Internal Medicine, Section D, Department of Medicine, University of Verona, 37134 Verona, Italy. mariateresa.valenti@univr.it. Specialized Regional Center for Biomolecular and Histomorphometric Research for Skeletal and Degenerative Diseases, 37134 Verona, Italy. mariateresa.valenti@univr.it. Clinic of Internal Medicine, Section D, Department of Medicine, University of Verona, 37134 Verona, Italy. francesco.delforno@univr.it. Specialized Regional Center for Biomolecular and Histomorphometric Research for Skeletal and Degenerative Diseases, 37134 Verona, Italy. francesco.delforno@univr.it. Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Pediatric Division, University of Verona, 37134 Verona, Italy. giorgio.piacentini@univr.it. Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Pediatric Division, University of Verona, 37134 Verona, Italy. angelo.pietrobelli@univr.it. Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA. angelo.pietrobelli@univr.it.