Another SNP, rs4420638, an A→G transition of nucleotide, located about 340 bp downstream of the 3’ terminus of the apoC1 gene, tags a linkage desequibrium (LD) block involving the TOMM40, apo E, and apoC1 genes, and has been implicated in dyslipidemia (24). Here, APOC1 is linked to metabolic syndrome.