Abstract
Risperidone has demonstrated therapeutic advantages over conventional neuroleptics and offers a valuable emerging option for the treatment of social behavior associated with autistic disorder. Considering the putative involvement of astroglial cells in neuropsychiatric disorders, we investigated the effect of risperidone on parameters of astrocyte activity — glutamate uptake, glutamine synthetase (GS) activity and glutathione (GSH) levels. Risperidone was able to induce a significantly increase on glutamate uptake (32%); GS activity (15%); GSH levels (58%). These findings imply the perspectives for further investigations directed on astrocytes from different brain areas. Our present results suggest that risperidone might exert its neuroprotective effects against brain illness at least partially via modulation of astrocyte functions.
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