Lack of Association of Common Polymorphism of LRP1 Gene with Myocardial Infarction in a Chinese Han Population

This study examined the association of a common polymorphic allele（25G） of the low-density lipoprotein receptor-related protein1（LRP1） gene with myocardial infarction（MI）.The genotypes of LRP1 25CG（rs35282763） were determined in 347 MI patients and 347 age-and sex-frequency-matched controls from an unrelated Chinese Han population.Factor Ⅷ（FⅧ） levels were measured in the MI patients and controls by chromogenic assay and enzyme-linked immunosor-bent assay（ELISA）.The results showed that LRP1 25CG（rs35282763） genotype distribution did not differ significantly between patients（n=206 for 25CC,n=122 for 25CG） and controls（n=191 for 25CC,n=126 for 25CG;P0.05）.The 25G allele was not associated with a reduced risk of MI（P0.05）.Further stratifications for age,sex,and other cardiovascular risk factors did not affect the negative findings.It was concluded that the presence of the G allele at the 25CG（rs35282763） polymorphism of the LRP1 is not associated with a reduced risk of MI,and genotyping for LRP1 25CG（rs35282763） polymor-phism is not useful in assessing the individual risk of MI.