TY - JOUR
T1 - Reduced risk of recurrent myocardial infarction in homozygous carriers of the chromosome 9p21 rs1333049 c risk allele in the contemporary percutaneous coronary intervention era
T2 - A prospective observational study
AU - Hara, Masahiko
AU - Sakata, Yasuhiko
AU - Nakatani, Daisaku
AU - Suna, Shinichiro
AU - Usami, Masaya
AU - Matsumoto, Sen
AU - Ozaki, Kouichi
AU - Nishino, Masami
AU - Sato, Hiroshi
AU - Kitamura, Tetsuhisa
AU - Nanto, Shinsuke
AU - Hamasaki, Toshimitsu
AU - Tanaka, Toshihiro
AU - Hori, Masatsugu
AU - Komuro, Issei
PY - 2014
Y1 - 2014
N2 - Objectives: Chromosome 9p21 single nucleotide polymorphism (SNP) is a susceptibility variant for acute myocardial infarction (AMI) in the primary prevention setting. However, it is controversial whether this SNP is also associated with recurrent myocardial infarction (ReMI) in the secondary prevention setting. The purpose of this study is to evaluate the impact of chromosome 9p21 SNP on ReMI in patients receiving secondary prevention programmes after AMI. Design: A prospective observational study. Setting: Osaka Acute Coronary Insufficiency Study (OACIS) in Japan. Participants: 2022 patients from the OACIS database. Interventions: Genotyping of the 9p21 rs1333049 variant. Primary outcome measures: ReMI event after survival discharge for 1 year. Results: A total of 43 ReMI occurred during the 1 year follow-up period. Although the rs1333049 C allele had an increased susceptibility to their first AMI in an additive model when compared with 1373 healthy controls (OR 1.20, 95% CI 1.09 to 1.33, p=2.3*10-4), patients with the CC genotype had a lower incidence of ReMI at 1 year after discharge of AMI (log-rank p=0.005). The adjusted HR of the CC genotype as compared with the CG/GG genotypes was 0.20 (0.06 to 0.65, p=0.007). Subgroup analysis demonstrated that the association between the rs1333049 CC genotype and a lower incidence of 1 year ReMI was common to all subgroups. Conclusions: Homozygous carriers of the rs1333049 C allele on chromosome 9p21 showed a reduced risk of 1 year ReMI in the contemporary percutaneous coronary intervention era, although the C allele had conferred susceptibility to their first AMI.
AB - Objectives: Chromosome 9p21 single nucleotide polymorphism (SNP) is a susceptibility variant for acute myocardial infarction (AMI) in the primary prevention setting. However, it is controversial whether this SNP is also associated with recurrent myocardial infarction (ReMI) in the secondary prevention setting. The purpose of this study is to evaluate the impact of chromosome 9p21 SNP on ReMI in patients receiving secondary prevention programmes after AMI. Design: A prospective observational study. Setting: Osaka Acute Coronary Insufficiency Study (OACIS) in Japan. Participants: 2022 patients from the OACIS database. Interventions: Genotyping of the 9p21 rs1333049 variant. Primary outcome measures: ReMI event after survival discharge for 1 year. Results: A total of 43 ReMI occurred during the 1 year follow-up period. Although the rs1333049 C allele had an increased susceptibility to their first AMI in an additive model when compared with 1373 healthy controls (OR 1.20, 95% CI 1.09 to 1.33, p=2.3*10-4), patients with the CC genotype had a lower incidence of ReMI at 1 year after discharge of AMI (log-rank p=0.005). The adjusted HR of the CC genotype as compared with the CG/GG genotypes was 0.20 (0.06 to 0.65, p=0.007). Subgroup analysis demonstrated that the association between the rs1333049 CC genotype and a lower incidence of 1 year ReMI was common to all subgroups. Conclusions: Homozygous carriers of the rs1333049 C allele on chromosome 9p21 showed a reduced risk of 1 year ReMI in the contemporary percutaneous coronary intervention era, although the C allele had conferred susceptibility to their first AMI.
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U2 - 10.1136/bmjopen-2014-005438
DO - 10.1136/bmjopen-2014-005438
M3 - Article
C2 - 25232560
AN - SCOPUS:84905991326
VL - 4
JO - BMJ Open
JF - BMJ Open
SN - 2044-6055
IS - 8
M1 - e005438
ER -