title: Association of a polymorphism of BTN2A1 with hypertension in Japanese individuals.
abstract: BACKGROUND
  We previously showed that the C→T polymorphism (rs6929846) in butyrophilin, subfamily 2, member A1 gene (BTN2A1) was associated with myocardial infarction in Japanese individuals. Given that hypertension is a major risk factor for myocardial infarction, the association of rs6929846 of BTN2A1 with myocardial infarction might be attributable, at least in part, to its effect on susceptibility to hypertension. We have thus examined the relation of rs6929846 of BTN2A1 to hypertension in Japanese individuals.
  
  
  METHODS
  A total of 8,567 Japanese individuals from two independent subject panels were examined: Subject panels A and B comprised 2,317 hypertensive individuals and 1,933 controls, and 2,911 hypertensive individuals and 1,406 controls, respectively. The genotype of rs6929846 was determined by a method that combines the PCR and sequence-specific oligonucleotide probes with suspension array technology.
  
  
  RESULTS
  Multivariable logistic regression analysis with adjustment for covariates revealed that rs6929846 of BTN2A1 was significantly associated with hypertension in subject panel A (P = 2.6 × 10(-6); odds ratio, 1.69) and in subject panel B (P = 0.0284; odds ratio, 1.24), with the T allele representing a risk factor for hypertension. The rs6929846 was associated with systolic blood pressure (BP) in subject panels A (P = 0.0063) and B (P = 0.0115) and with diastolic BP in subject panel B (P = 0.0323), with the T allele being related to high BP.
  
  
  CONCLUSIONS
  BTN2A1 may be a susceptibility gene for hypertension in Japanese individuals. Determination of genotype for this polymorphism may prove informative for assessment of the genetic risk for hypertension.
authors.affiliation: Department of Cardiovascular Medicine, Gifu Prefectural Tajimi Hospital, Tajimi, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Horibe
authors.forename: Kimihiko
authors.initials: K
authors.lastname: Kato
authors.forename: Mitsutoshi
authors.initials: M
authors.lastname: Oguri
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Yoshida
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Fujimaki
authors.forename: Toshiki
authors.initials: T
authors.lastname: Kawamiya
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Yokoi
authors.forename: Sachiro
authors.initials: S
authors.lastname: Watanabe
authors.forename: Kei
authors.initials: K
authors.lastname: Satoh
authors.forename: Yukitoshi
authors.initials: Y
authors.lastname: Aoyagi
authors.forename: Masashi
authors.initials: M
authors.lastname: Tanaka
authors.forename: Hiroto
authors.initials: H
authors.lastname: Yoshida
authors.forename: Shoji
authors.initials: S
authors.lastname: Shinkai
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Nozawa
authors.forename: Toyoaki
authors.initials: T
authors.lastname: Murohara
authors.forename: Yoshiji
authors.initials: Y
authors.lastname: Yamada
mesh_terms: D000368:Aged; D044466:Asian People / Q000235:genetics; D001794:Blood Pressure / Q000235:genetics; D000071797:Butyrophilins; D005260:Female; D006801:Humans; D006973:Hypertension / Q000235:genetics; D008297:Male; D008562:Membrane Glycoproteins / Q000235:genetics*; D008875:Middle Aged; D009203:Myocardial Infarction / Q000235:genetics
chemical_list: D000071797:Butyrophilins; D008562:Membrane Glycoproteins