[Retracted] Biomolecular Modulation of Neurodegenerative Events during Ageing

Figure 4

Inducible nitric oxide synthase (iNOS) immunolocalization in the sections of the optic nerve head (a/b/c) and in the retina (a′/b′/c′). ((a) and (a′)) Young rat without iNOS immunolocalization (6 months, negative control). ((b) and (b′)) Aged rat fed normally with high iNOS expression in cells. ((c) and (c′)) Aged rat after oral supplementation of α-lipoic acid (ALA) and superoxide dismutase (SOD) with reduced immunofluorescence, indicating lower iNOS expression.