1. Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
2. Nanomedicine and Nanobiotechnology Research Group, University of Ioannina, Greece
3. School of Medicine, European University Cyprus, Nicosia, Cyprus
4. Laboratory of Anatomy and Histology, school of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
5. Endocrine Unit and Diabetes Centre, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
6. Department of Neurology, University Hospital of Ioannina, Ioannina, Greece