CASP3 and Parkinson disease: Exploring the non-apoptotic activation and modulation of caspase-3 may contribute to a better comprehension of caspases’ anti-apoptotic involvement at corticostriatal level, as well as help to clarify the mechanisms involved in synaptic failure in the pathophysiology of PD [54,55], also in view of rationale therapeutic approaches for counteracting PD progression.