RBFOX3 and Parkinson disease: To further study the cellular structure of the PC in the pre-motor PD model, the distribution of NeuN-immunopositive neurones was observed in the PC of the sham animals and pre-motor model at 18 days after surgery, revealing an increase in the number of neurones in the model (Figures 7Ba,b – Pshamvs.model <0.0001) that resulted mainly from an increase in the number of neurones in Layer 3 of the PC (data not shown).