AUTHORS: Sashova Tomova, A., Kemenyova, P., Celarova, D., Szapuova, Z., Kovac, A., Babinska, K., Ostatnikova D. ABSTRACT: Autism spectrum disorder (ASD) is a neurodevelopmental condition with increasing incidence. Recent evidences suggest glial cells involvement in autism pathophysiology. S100B is a calcium binding protein, mainly found in astrocytes and therefore used as a marker of their