title: Apolipoprotein E polymorphism and lipoprotein compositions in normolipidaemic xanthelasma patients.
abstract: BACKGROUND
  Apolipoprotein E (apoE) phenotypes and lipoprotein compositions in xanthelasma patients have been reported in different series.
  
  
  OBJECTIVE
  To investigate the apoE polymorphism and lipoprotein compositions in xanthelasma patients by using rapid polymerase chain reaction, and searched for an association between apoE polymorphism and the lipoprotein levels in xanthelasma patients.
  
  
  METHODS
  ApoE polymorphism and the different types of serum lipoproteins were studied in 25 patients with xanthelasma and compared with 27 normal subjects.
  
  
  RESULTS
  All of patients were found to be normolipidaemic. The patients had significantly higher concentrations of total cholesterol and apolipoprotein B, and lower concentrations of apolipoprotein A. There was no difference in serum triglyceride, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) cholesterol concentrations. The distribution of apoE genotypes and alleles was the same in both groups.
  
  
  CONCLUSIONS
  The apoB, apoA and cholesterol levels did show statistically significant differences in the direction of an increased risk of atherosclerosis. Patients with xanthelasma demonstrated slight differentiations in the apoE polymorphism and metabolism of lipoproteins that require further clarifications.
authors.affiliation: Department of Dermatology, Faculty of Medicine, Mersin University, Mersin, Turkey. utursen@mersin.edu.tr
authors.forename: U
authors.initials: U
authors.lastname: Tursen
authors.forename: G
authors.initials: G
authors.lastname: Eskandari
authors.forename: T I
authors.initials: TI
authors.lastname: Kaya
authors.forename: L
authors.initials: L
authors.lastname: Tamer
authors.forename: G
authors.initials: G
authors.lastname: Ikizoglu
authors.forename: U
authors.initials: U
authors.lastname: Atik
mesh_terms: D001054:Apolipoproteins A / Q000097:blood; D001055:Apolipoproteins B / Q000097:blood; D001057:Apolipoproteins E / Q000097:blood / Q000235:genetics*; D016022:Case-Control Studies; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D005260:Female; D006801:Humans; D008074:Lipoproteins / Q000097:blood*; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D014280:Triglycerides / Q000097:blood; D014421:Turkey; D044465:White People / Q000235:genetics; D014973:Xanthomatosis / Q000097:blood / Q000235:genetics*
chemical_list: D001054:Apolipoproteins A; D001055:Apolipoproteins B; D001057:Apolipoproteins E; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D008074:Lipoproteins; D014280:Triglycerides; D002784:Cholesterol