1. Department of Veterinary Medical Science, University of Bologna, Ozzano Emilia, BO, Italy;
2. Cellular Substrates, The Lombardy and Emilia Romagna experimental Zootechnic Institute (IZSLER), Brescia, Italy;
3. U.O. Nephrology, Dialysis and Transplantation Unit, Sant’Orsola-Malpighi University Hospital, Bologna, Italy