title: Sex-associated effect of CETP and LPL polymorphisms on postprandial lipids in familial hypercholesterolaemia.
abstract: BACKGROUND
  This study assessed the gender-specific influence of the cholesteryl ester transfer protein (TaqIB, I405V) and lipoprotein lipase (S447X) polymorphisms on the response to an oral fat tolerance test in heterozygotes for familial hypercholesterolaemia.
  
  
  METHODS
  We selected and genotyped 80 men and postmenopausal women heterozygous for familial hypercholesterolaemia (main group) as well as 11 healthy control subjects. Patients were subgrouped based on their response to oral fat tolerance test. The oral fat tolerance test was defined as pathological when postprandial triglyceride concentration was higher than the highest triglyceride concentration observed in healthy subjects (220 mg/dl) at any time (2, 4, 6 or 8 h).
  
  
  RESULTS
  In the pathological subgroup, men had significantly higher incremental area under the curve after oral fat tolerance test than postmenopausal women. Furthermore, multivariate analysis revealed a gender association of TaqIB and I405V influence on postprandial lipaemia in this subgroup.
  
  
  CONCLUSIONS
  In conclusion, it seems that gender and TaqIB polymorphism of the cholesteryl ester transfer protein gene were both associated with the distribution of triglyceride values after oral fat tolerance test, only in subjects with a pathological response to oral fat tolerance test. Specifically, men carrying the B2 allele of the TaqIB polymorphism showed a higher postprandial triglyceride peak and a delayed return to basal values compared with women carrying B2. However, further investigations in larger populations are required to replicate and confirm these findings.
authors: 1st Cardiology Department, Onassis Cardiac Surgery Center Athens, Greece. kat_anag@yahoo.com
authors: Katherine K
authors: KK
authors: Anagnostopoulou
authors: Genovefa D
authors: GD
authors: Kolovou
authors: Peggy M
authors: PM
authors: Kostakou
authors: Constantinos
authors: C
authors: Mihas
authors: Georgios
authors: G
authors: Hatzigeorgiou
authors: Christina
authors: C
authors: Marvaki
authors: Dimitrios
authors: D
authors: Degiannis
authors: Dimitri P
authors: DP
authors: Mikhailidis
authors: Dennis V
authors: DV
authors: Cokkinos
mesh_terms: D000483:Alleles; D016022:Case-Control Studies; D053480:Cholesterol Ester Transfer Proteins / Q000235:genetics*; D005260:Female; D006801:Humans; D006938:Hyperlipoproteinemia Type II / Q000097:blood / Q000235:genetics*; D008071:Lipoprotein Lipase / Q000235:genetics*; D008297:Male; D015999:Multivariate Analysis; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D019518:Postprandial Period / Q000235:genetics*; D012044:Regression Analysis; D012727:Sex Characteristics; D014280:Triglycerides / Q000097:blood*
chemical_list: C506642:CETP protein, human; D053480:Cholesterol Ester Transfer Proteins; D014280:Triglycerides; D008071:Lipoprotein Lipase