FOSB and Hodgkins lymphoma: Immunohistochemical analyses revealed that HL alone induced higher striatal FosB levels (50.5 ± 6.4 cells/mm3, p < 0.001 vs. MPTP), whereas combination treatment alleviated this increase (25.0 ± 0.8 cells/mm3, p < 0.001 vs. HL; Fig. 9a and b).