title: Genetic risk for restenosis after coronary balloon angioplasty.
abstract: Plain old balloon angioplasty (POBA) is a useful therapeutic strategy especially for angioplasty of small coronary arteries. An association study was performed to identify genes that confer susceptibility to restenosis after POBA. The study population comprised 730 individuals (424 men, 306 women) who underwent successful POBA in at least one major coronary artery and were examined angiographically 6 months after the procedure. A total of 469 subjects (273 men, 196 women) exhibited no restenosis after POBA for any of the coronary lesions, whereas 261 subjects (151 men, 110 women) manifested restenosis for all lesions. The genotypes for 40 polymorphisms of 34 genes were determined with a fluorescence- or colorimetry-based allele-specific DNA primer-probe assay. Multivariate logistic regression analysis with adjustment for age, body mass index, and the prevalence of smoking, hypertension, diabetes mellitus, hypercholesterolemia, and hyperuricemia revealed that two polymorphisms (242C --> T in the NADH/NADPH oxidase p22 phox (p22-PHOX) gene and 2136C --> T in the thrombomodulin (THBD) gene) in men and two polymorphisms (584G --> A in the paraoxonase 1 (PON1) gene and 2445G --> A in the fatty acid-binding protein 2 (FABP2) gene) in women were significantly associated with restenosis after POBA. A stepwise forward selection procedure revealed that the effects of these polymorphisms on restenosis were statistically independent of conventional risk factors for coronary artery disease. Genotyping of these polymorphisms may prove informative for assessment of genetic risk for restenosis after POBA.
authors.affiliation: Department of Cardiology, Kosei Hospital, Anjo, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Horibe
authors.forename: Yoshiji
authors.initials: Y
authors.lastname: Yamada
authors.forename: Sahoko
authors.initials: S
authors.lastname: Ichihara
authors.forename: Masato
authors.initials: M
authors.lastname: Watarai
authors.forename: Masanobu
authors.initials: M
authors.lastname: Yanase
authors.forename: Kenji
authors.initials: K
authors.lastname: Takemoto
authors.forename: Seiji
authors.initials: S
authors.lastname: Shimizu
authors.forename: Hideo
authors.initials: H
authors.lastname: Izawa
authors.forename: Fumimaro
authors.initials: F
authors.lastname: Takatsu
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Yokota
mesh_terms: D017677:Age Distribution; D000368:Aged; D000800:Angioplasty, Balloon / Q000009:adverse effects / Q000379:methods*; D015331:Cohort Studies; D017023:Coronary Angiography; D023903:Coronary Restenosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000235:genetics*; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000235:genetics* / Q000628:therapy*; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011110:Polymorphism, Genetic; D015995:Prevalence; D011379:Prognosis; D018570:Risk Assessment; D012720:Severity of Illness Index; D017678:Sex Distribution; D016019:Survival Analysis