Chlorogenic acid was found by Xin et al. to have neuroprotective and antioxidant potential that treated the 1-methyl-4-phenyl-1-1,2,3,6-tetrahydropyridine (MPTP) zebra fish model of PD by modulating the expression of PD (α-synuclein), demonstrating its ability to promote the autophagy that was disrupted in the PD pathology. The gene discussed is SNCA; the disease is Parkinson disease.