**3.1 Protection against the cell death induced by MPP<sup>+</sup>**

In primary rat cortical neurones, AV-6-93 at concentrations of 1 and 10 µM decreased MPP+ induced cell death by 75% and 56%, respectively (Fig. 2A). Diflurone exerted the protective ability only at the highest tested concentration, 10 μM, and decreased the MPP+-induced cell death by 35% (Fig. 2B). Neither AV-6-93 nor diflurone, added without MPP+, changed cell viability at the highest tested concentrations (Fig. 2).
