Notably, the H&Y was also correlated with Hcy (rS = 0.759, P = 0.002, Table 4), CRP (rS = 0.852, P = 0.000, Table 4), and NMSS (rS = 0.602, P = 0.023, Table 4) in patients with PD. The gene discussed is CRP; the disease is Parkinson disease.