In CYP4F2 gene, a functional haplotype block represented by rs3093105 was found to be associated with urinary 20-hydroxyeicosatetraenoic acid (20-HETE) and hypertension in Chinese individuals [26], while rs2074902 in the haplotype block and rs3093158 were found to be associated with Crohn's disease [27]. This evidence concerns the gene CYP4F2 and hypertensive disorder.