EETs are rapidly catabolized by soluble epoxide hydrolase (sEH) into less bioactive products such as dihydroxyeicosatrienoic acids (DHETs) (Yu et al., 2000), and the extent of this degradation correlates with deterioration of neurological function, carotid artery stenosis, and plaque instability in patients with cerebral infarction (Yi et al., 2016; Yi et al., 2017). This evidence concerns the gene EPHX2 and brain infarction.