1. Introduction Parkinson’s disease (PD) is the second most common neurodegenerative disease that affects human movement over time, affecting 1% to 3% of people aged > 65 years [1]. In the past 30 years, the odds of developing PD have increased to 2.5 times as much as before, and more than 6 million people are diagnosed annually worldwide [2]. The main characteristic of this disease is the early prominent death of dopaminergic neurons in the substantia nigra pars compacta [3].
