Neuroprotective effects of gypenosides in experimental autoimmune optic neuritis

International Journal of Ophthalmology
Hong-Kan ZhangJian-Feng He

Abstract

To determine whether gypenosides have protective effects in experimental autoimmune optic neuritis (EAON). Mice were randomly divided into seven groups: control group, model group, three different density gypenosides monotherapy, methylprednisolone monotherapy, combination of gypenosides and methylprednisolone group. The control group was subcutaneously injected with oil emulsion adjuvant and all other groups were subcutaneously immunized with an emulsified mixture of myelin oligodendrocyte glycoprotein (MOG) 35-55 peptide to induce EAON. Mice in the gypenosides groups were administered injections daily with three concentrations (15 mg/kg, 30 mg/kg, 45 mg/kg) of gypenosides respectively. Mice in the methylprednisolone group and the combination treatment group were injected daily with methylprednisolone (20 mg/kg) or methylprednisolone (20 mg/kg) + gypenosides (30 mg/kg), respectively. After MOG immunization, visual evoked potential (VEP), optical coherence tomography (OCT), and histopathologic examination were performed at 14, 20, 30, and 40d post-inoculation (p.i.). All results were expressed as mean±SEM. The data were evaluated by one-way ANOVA followed by Tukey or Games-Howell test. Compared with the control group, p2 latenc...Continue Reading

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