Fig. 2.

The effect of Menta-FX (M-FX) and a mixture of Panax quinquefolius L. extract and Ginkgo biloba extract (P + G) on the nitric oxide synthase (NOS) activity in axotomized retinas. NOS activity was not significantly affected by axotomy in the PBS-treated group at 3 and 7 days post-axotomy (dpa). Treatment with Menta-FX and a mixture of Panax quinquefolius L. extract and Ginkgo biloba extract (P + G) did not significantly modulate NOS activity at 3 and 7 dpa, although Menta-FX treatment did slightly increase NOS activity in axotomized retinas at 3 dpa. P > 0.05 for all comparisons; one way ANOVA. n = 3–6 in each group