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Abstract #19267 Published in IGR 9-3
Retinal damage caused by high intraocular pressure-induced transient ischemia is prevented by coenzyme Q10 in rat
Nucci C; Tartaglione R; Cerulli A; Mancino R; Spano A; Cavaliere F; Rombola L; Bagetta G; Corasaniti MT; Morrone LAInternational review of neurobiology 2007; 82: 397-406
Recent studies support a role for excitotoxicity in the development of retinal ganglion cell (RGC) damage in subjects suffering from glaucoma. Coenzyme Q10 (CoQ10), an essential cofactor of the electron transport chain, has been reported to afford neuroprotection, preventing the formation of the mitochondrial permeability transition pore. Using an established animal model of retinal ischemia/reperfusion here, we show that synaptic glutamate increases at 130 min from beginning of reperfusion and delayed apoptosis in the RGC layer is seen at 24 h. Intraocular administration of CoQ10 minimizes glutamate increase and affords neuroprotection, suggesting that oxidative stress and energy failure might be implicated in the mechanisms of RGC death.
Dr. C. Nucci, Physiopathological Optics, Department of Biopathology, University of Rome Tor Vergata, 00133 Rome, Italy
Classification:
11.8 Neuroprotection (Part of: 11 Medical treatment)
5.1 Rodent (Part of: 5 Experimental glaucoma; animal models)
2.13 Retina and retinal nerve fibre layer (Part of: 2 Anatomical structures in glaucoma)
