In a 2012 Korean study of 121 patients with ischemic stroke and 291 controls, ABCB1 polymorphisms were associated with dyslipidemia (rs1128503, p < 0.05), diabetes mellitus (rs3842, p < 0.05), and ischemic stroke (rs4148727, p < 0.05) [33]. This evidence concerns the gene ABCB1 and metabolic syndrome.