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Nimodipine Aggravates Systemic Kainic Acid Toxicity In Retinal Ganglion Cells Of Intact Mice, Akçahan Gepdi̇remen, Murat Kaya, İbrahi̇m Koçer, Cemal Gündoğdu

Turkish Journal of Medical Sciences

The aim of the present study was to investigate the role of the L-type voltage dependent Ca^2^+ channel blocker, nimodipine, in kainate induced toxicity in retinal ganglion cells of mice. Kainate in 10mg/kg was administered intraperitoneally following the vehicle or nimodipine. Nimodipine, 45 minutes prior to kainate in 10, 15, 25, 50, 100 and 250 mg/kg doses was administered intraperitoneally. Surprisingly, nimodipine potentiated the ganglional cell death induced by kainate, with respect to the control and kainate+vehicle treated group. In accordance with our results, blockage of L-type calcium channels by nimodipine may worsen the prognosis and survival of retinal neurons …