The gene encoding SDF-1 is located on the human chromosome 10q11.1, which has been previously identified as a susceptibility locus for cardiovascular disease by genome-wide association studies (GWASs).[34,35] Several studies have shown, that certain SDF-1 SNPs might alter SDF-1 protein expression levels.[36,37] However, in our present collective we could neither find a significant alteration of SDF-1 plasma- nor platelet levels within the different SDF-1 haplotypes (data not shown). The gene discussed is CXCL12; the disease is cardiovascular disorder.