Association of a polymorphism of BTN2A1 with myocardial infarction in East Asian populations
2011
Yamada, Yoshiji | Nishida, Tamotsu | Ichihara, Sahoko | Sawabe, Motoji | Fuku, Noriyuki | Nishigaki, Yutaka | Aoyagi, Yukitoshi | Tanaka, Masashi | Fujiwara, Yoshinori | Yoshida, Hiroto | Shinkai, Shoji | Satoh, Kei | Kato, Kimihiko | Fujimaki, Tetsuo | Yokoi, Kiyoshi | Oguri, Mitsutoshi | Yoshida, Tetsurō | Watanabe, Sachiro | Nozawa, Yoshinori | Hasegawa, Aki | Kojima, Toshio | Han, Bok-Ghee | Ahn, Younjin | Lee, Meehee | Shin, Dong-Jik | Lee, Jong Ho | Jang, Yangsoo
OBJECTIVE: We have performed a genome-wide association study (GWAS) to identify genetic variants that confer susceptibility to myocardial infarction (MI) in Japanese and Korean populations. METHODS: A total of 17,447 Japanese or Korean individuals from four independent subject panels was examined. Japanese subject panels A, B, and C comprised 134 individuals with MI and 137 controls, 1431 individuals with MI and 3161 controls, and 643 individuals with MI and 1347 controls, respectively, whereas the Korean population comprised 1880 individuals with MI and 8714 controls. A GWAS for MI was performed in Japanese subject panel A with the use of the Affymetrix GeneChip Human Mapping 500K Array Set. RESULTS: Seventy single nucleotide polymorphisms (SNPs) significantly (P<1.0×10⁻⁷) associated with MI by the GWAS were examined further in Japanese subject panel B, revealing two SNPs (rs6929846 of BTN2A1, rs2569512 of ILF3) to be significantly (P<0.0007) associated with MI. The rs6929846 SNP of BTN2A1, but not rs2569512 of ILF3, was also significantly associated with MI in Japanese subject panel C. However, the association of neither rs6929846 nor rs2569512 with MI was replicated in the Korean population. CONCLUSION: BTN2A1 may be a susceptibility gene for MI in Japanese individuals.
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