Parkinson's disease (PD) is a neurodegenerative disorder characterised by dopamine deficiency and the accumulation of α-synuclein (α-syn), which aggregates into pathological inclusions known as Lewy bodies and Lewy neurites, distributed across multiple brain regions, with a particular prevalence in dopaminergic neurons. Alongside hallmark motor symptoms, PD is often accompanied by non-motor manifestations that severely affect...