NFKB1 and Parkinson disease: In the striatum (Figure 3 and Figure S2 with magnification 400×), the intensity of NF-kB-positive cells in the control, MPTP-PD, TUDCA, Syndopa, and TUDCA + Syndopa groups was estimated as 7.2%, 43.3%, 22.8%, 29.3%, and 18.2%, respectively.