SOD1 and migraine disorder: SNP analysis of observed allele and genotype frequencies demonstrated that the LTA rs2071590 T allele (OR = 2.2; p = 0.034) and the SOD1 rs2234694 C allele (OR = 4.9; p = 0.003) were both associated with MRI findings of WMHs in inheritance models of migraine patients (Table 4).