Arundic acid is an inhibitor of astrocyte activation. It reduces increases in brain glial fibrillary acid protein (GFAP) and S100β levels, markers of astrocyte activation, in a rat model of permanent focal ischemia induced by middle cerebral artery occlusion when administered at a dose of 10 mg/kg. Arundic acid (3 and 10 mg/kg) decreases the number of TUNEL-positive neurons, reduces infarct size, and improves motor performance in the rotarod test in the same model. It also reduces descent time and time to turn in a pole test, indicating reversal of motor deficits, in a mouse model of MPTP-induced Parkinson''s disease when administered at a dose of 30 mg/kg.
