title: [Genetic polymorphism analysis of apoE intron 1 enhancer in patients with coronary heart disease and the association with serum lipid level].
abstract: OBJECTIVE
  To investigate the association between the polymorphism of apolipoprotein E (apoE) intron 1 enhancer (IE1) and the level of serum lipid in patients with coronary heart disease (CHD).
  
  
  METHODS
  ApoE IE1 genotypes of 81 patients with CHD and 108 healthy subjects were detected by polymerase chain reaction and restriction fragment length polymorphism.
  
  
  RESULTS
  The frequency of G/G genotype in patients with CHD was significantly higher than that in control group (P < 0.05). The frequency of G allele was significantly higher in patients than in control group (P < 0.05). The gene polymorphism of apoE IE1 obviously influenced the serum lipid levels. The concentrations of TC, and LDL-C among different genotype groups were significantly different, and the level in G/G group was higher than that in C/C group (P < 0.05).
  
  
  CONCLUSIONS
  ApoE IE1 gene polymorphism is closely related to serum lipid, and G/G genotype of apoE IE1 may be a risk factor of coronary heart disease in Han Chinese.
authors.affiliation: Department of Clinical Chemistry, Second Affiliated Hospital, Hubei Medical University, Wuhan 430071, China.
authors.forename: T
authors.initials: T
authors.lastname: Cui
authors.forename: X
authors.initials: X
authors.lastname: Zhou
authors.forename: F
authors.initials: F
authors.lastname: Zheng
mesh_terms: D000368:Aged; D000483:Alleles; D001057:Apolipoproteins E / Q000235:genetics*; D002784:Cholesterol / Q000097:blood*; D003327:Coronary Disease / Q000235:genetics*; D004742:Enhancer Elements, Genetic; D005260:Female; D005787:Gene Frequency; D006801:Humans; D007438:Introns / Q000235:genetics; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic
chemical_list: D001057:Apolipoproteins E; D002784:Cholesterol