Alexander Bürkle1
, Graziella Caselli2
, Claudio Franceschi3
, Erminia Mariani4,5
, Paolo Sansoni6
, Angela Santoni7
, Giancarlo Vecchio8
, Jacek M Witkowski9
and Calogero Caruso10 
1
Department of Biology, Box X911, University of Konstanz, Konstanz, Germany
2
Department of Demographic Sciences, University "La Sapienza" of Rome, Rome, Italy
3
Department of Experimental Pathology and CIG – Interdepartmental Center "L. Galvani", University of Bologna, Italy
4
Immunology and Genetics Laboratory, Institute Codivilla-Putti, Bologna, Italy
5
Department of Internal Medicine and Gastroenterology of University of Bologna, Bologna, Italy
6
Department of Internal Medicine and Biomedical Sciences, University of Parma, Parma, Italy
7
Department of Experimental Medicine, University "La Sapienza" of Rome, Rome, Italy
8
Department of Cellular and Molecular Biology and Pathology, University of Naples Federico II, Naples, Italy
9
Department of Pathophysiology, Medical University of Gdansk, Gdansk, Poland
10
Immunosenescence Unit, Department of Pathobiology and Biomedical Methodologies, University of Palermo, Palermo, Italy