title: Factors associated with postprandial lipemia and apolipoprotein A-V levels in individuals with familial combined hyperlipidemia.
abstract: BACKGROUND
  Alterations in postprandial metabolism have been described in familial combined hyperlipidemia (FCH); however, their underlying mechanisms are not well characterized. We aimed to identify factors related to the magnitude of postprandial lipemia and apolipoprotein (apo) A-V levels in subjects with FCH.
  
  
  METHODS
  FCH cases (n = 99) were studied using a standardized meal test. Abdominal obesity was assessed using the waist to hip ratio (WHR). A linear regression model was performed to investigate the variables associated with the triglycerides incremental area under the curve (iAUC). Independent associations between metabolic variables and apo A-V iAUC were also investigated in a randomly selected subgroup (n = 44). The study sample was classified according to the presence of fasting hypertriglyceridemia (≥150 mg/dL) and abdominal obesity (WHR ≥0.92 in men and ≥0.85 in women) to explore differences in parameters.
  
  
  RESULTS
  The fasting apo B-48 levels (r = 0.404), and the WHR (r = 0.359) were independent factors contributing to the triglycerides iAUC (r2 = 0.29, P < 0.001). The triglycerides iAUC was independently associated with the apo A-V iAUC (r2 = 0.54, P < 0.01). Patients with both hypertriglyceridemia and abdominal obesity showed the most robust triglycerides and apo A-V postprandial responses.
  
  
  CONCLUSIONS
  In patients with FCH the fasting apo B-48 level is the main factor associated with postprandial lipemia. Abdominal obesity also contributes to the magnitude of the postprandial response.The triglycerides postprandial increment is the principal factor associated with the apo A-V postprandial response.
authors.forename: Paloma
authors.initials: P
authors.lastname: Almeda-Valdes
authors.forename: Daniel
authors.initials: D
authors.lastname: Cuevas-Ramos
authors.forename: Roopa
authors.initials: R
authors.lastname: Mehta
authors.forename: Liliana
authors.initials: L
authors.lastname: Muñoz-Hernandez
authors.forename: Ivette
authors.initials: I
authors.lastname: Cruz-Bautista
authors.forename: Oscar
authors.initials: O
authors.lastname: Perez-Mendez
authors.forename: Maria Teresa
authors.initials: MT
authors.lastname: Tusie-Luna
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Gomez-Perez
authors.forename: Päivi
authors.initials: P
authors.lastname: Pajukanta
authors.forename: Niina
authors.initials: N
authors.lastname: Matikainen
authors.forename: Marja-Riitta
authors.initials: MR
authors.lastname: Taskinen
authors.affiliation: Department of Endocrinology and Metabolism, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico. caguilarsalinas@yahoo.com.
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Aguilar-Salinas
mesh_terms: D000328:Adult; D001053:Apolipoproteins / Q000097:blood*; D002784:Cholesterol / Q000097:blood*; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D006950:Hyperlipidemia, Familial Combined / Q000097:blood* / Q000453:epidemiology; D006949:Hyperlipidemias / Q000097:blood* / Q000453:epidemiology; D015228:Hypertriglyceridemia / Q000097:blood* / Q000453:epidemiology; D008074:Lipoproteins / Q000097:blood*; D008297:Male; D008800:Mexico / Q000453:epidemiology; D056128:Obesity, Abdominal / Q000097:blood* / Q000150:complications / Q000453:epidemiology; D019518:Postprandial Period; D014280:Triglycerides / Q000097:blood*
chemical_list: D001053:Apolipoproteins; D008074:Lipoproteins; D014280:Triglycerides; C112017:remnant-like particle cholesterol; D002784:Cholesterol