1. Department of Molecular Medicine, University of Padova, Padova, Italy;
2. Department of Sciences, University of Roma Tre, Roma, Italy;
3. Roma Tre Section, National Institute of Nuclear Physics, Roma, Italy;
4. Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Bologna, Italy;
5. Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Rimini, Italy;
6. Department of Biochemical Science "A. Rossi Fanelli", University of Rome "La Sapienza", Rome, Italy;
7. International Polyamines Foundation – ONLUS –Via del Forte Tiburtino 98, Rome, Italy