Abstract
A diversity of disease processes and conditions such as Alzheimer´s disease, schizophrenia, epilepsy and stroke – although they are caused by different mechanism – share one common target: the NMDA-receptor [1]. Recent studies reported the presence and the participation of this glutamate-gated ion-channel in major regulatory mechanisms at the blood-brain barrier (BBB). In order to show the functionability of this receptor and his effects on the BBB, we used an in vitro model based on human cell line ECV304 [2].