1. Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Asturias, Spain
2. Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
3. Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Oviedo, Asturias, Spain