1. Section of Pharmacology, Department of Clinical and Experimental Medicine and Pharmacology, University of Messina, Messina, Italy
2. Department of Surgical Sciences, University of Messina, Messina, Italy
3. Department of Veterinary Public Health, Section of Veterinary Pharmacology and Toxicology, University of Messina, Messina, Italy
4. Department of Animal Biology and Marine Ecology, Faculty of Science, University of Messina, Messina, Italy
5. Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology, Trieste, Italy