BDNF and age-related macular degeneration: Therefore, the aim of this study was to assess the age-related changes in cell type–specific expression of mNGF, mBDNF, proBDNF and their receptors in the retina of OXYS and control Wistar rats and contributions of neurotrophic factors to the development of AMD-like pathology in OXYS rats, including the preclinical stage.