We found that one of the promoter variants, rs35652124, was associated with age of disease onset (Χ2 = 14.19, p value = 0.0067). NRF2 mRNA expression levels however did not correlate with the rs35652124 genotype, Parkinson's disease, or age of onset in our material. The gene discussed is NFE2L2; the disease is Parkinson disease.