Parkinson’s disease
Parkinson’s disease (PD) is a progressive neurodegenerative disorder marked by selective loss of dopamine-producing neurons in the substantia nigra, leading to motor and non-motor symptoms; its slow progression means disease-modifying trials need long follow-up to detect slowing. It is strongly linked to pathological alpha-synuclein accumulation, familial and sporadic risk genes such as lrrk2, pink1, and…
