Furthermore, in each group of monkeys there was a further subdivision in two subgroups: for the cortical lesion (n = 4) only two monkeys received the anti-Nogo-A antibody treatment whereas two monkeys remained untreated; for PD monkeys (n = 4; all treated with ANCE) two monkeys were injected with BDA in PM and two animals in M1. The gene discussed is RTN4; the disease is Parkinson disease.