title: [Application of polymerase chain reaction with confronting two-pair primers in aldehyde dehydrogenase-2 typing].
abstract: OBJECTIVE
  To study the distribution of aldehyde dehydrogenase-2 (ALDH2) polymorphisms between healthy Zhuang and Han ethnic individuals in Guangxi Autonomous Region and its influence to the behaviors of alcohol consumption.
  
  
  METHODS
  Polymerase chain reaction with confronting two-pair primers (PCR-CTPP) and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) techniques were used to genotype ALDH2, respectively, and alcohol consumption was recorded in a constructed questionnaire.
  
  
  RESULTS
  The frequencies of ALDH2 alleles (ALDH2(1)/ALDH2(2)) among Zhuang and Han ethnics were 0.511, 0.489 and 0.508, 0.492 respectively (chi2 = 0.001, P > 0.05). The ALDH2 genotypes were verified with PCR-RFLP method. The frequencies of ALDH2(1) genotype in alcoholics (> or = 3 times drinking per week) were 35.59% and 15.67% in Zhuang and Han groups respectively (chi2 = 5.800, P = 0.016).
  
  
  CONCLUSIONS
  There was no significant different distribution of ALDH2 genotype among healthy Zhuang and Han ethnic people. The genotype of ALDH2 in different ethnicity might influence individual behavior of alcohol consumption.
authors.affiliation: Department of Hepatobiliary Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
authors.forename: Xin-ping
authors.initials: XP
authors.lastname: Ye
authors.forename: Tao
authors.initials: T
authors.lastname: Peng
authors.forename: Kai-yin
authors.initials: KY
authors.lastname: Xiao
authors.forename: Zhi-xiong
authors.initials: ZX
authors.lastname: Su
authors.forename: Li-ming
authors.initials: LM
authors.lastname: Shang
authors.forename: Le-qun
authors.initials: LQ
authors.lastname: Li
mesh_terms: D000328:Adult; D000444:Aldehyde Dehydrogenase / Q000235:genetics*; D000071396:Aldehyde Dehydrogenase, Mitochondrial; D000483:Alleles; D002681:China; D017931:DNA Primers / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction / Q000379:methods*; D012150:Polymorphism, Restriction Fragment Length
chemical_list: D017931:DNA Primers; C096127:ALDH2 protein, human; D000444:Aldehyde Dehydrogenase; D000071396:Aldehyde Dehydrogenase, Mitochondrial