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Small and dense LDL in Familial Combined Hyperlipidemia and N291S polymorphism of the lipoprotein lipase gene

AuthorsLópez, Antonio; Jarabo, Maria M.; Martinez-Triguero, Maria L.; Morales, María ; Sola, Eva; Banuls, Celia; Casado, Marta ; Hernández Mijares, Antonio
Issue Date31-Mar-2009
PublisherBioMed Central
CitationLipids in Health and Disease 8 (1):12 (2009)
AbstractThere is a predominance of small and dense LDL cholesterol particles in familial combined hyperlipidemia (FCH). The lipoprotein lipase gene could exert an influence in these circumstances. To study the relationship of pattern B LDL and lipids with N291S polymorphism of lipoprotein lipase (LPL) in FCH patients. Lipid profile, apolipoproteins, diameter of LDL and N291S polymorphism were determined in 93 patients with FCH and 286 individuals from the general population. FCH patients with N291S polymorphism showed a lower mean diameter of LDL. FCH patients with pattern B LDL showed higher concentrations of triglycerides, VLDLc, non-HDLc and apo B100 and lower levels of HDLc than those with pattern A. Of FCH patients with polymorphism 87.5% presented pattern B and 12.5% pattern A, while patients without polymorphism presented pattern A in 69.2% cases and pattern B in 30.8% cases, with differences being statistically significant (p< 0.004). The prevalence of this mutation in our FCH patients was 9.7 %. The prevalence of N291S mutation in our FCH patients was similar to the 9.3% described in Dutch FCHL patients but clearly higher than the 2-5% described for other Caucasian populations. No polymorphism was found in our general population sample. FCH patients with phenotype B of LDL possessed an atherogenic lipid profile. The relationship between small and dense LDL and the presence of the N291S mutation may identify patients with high cardiovascular risk.
Description18 pagesm 2 figures. -- PMID: 19335919 [PubMed]
Publisher version (URL)http://dx.doi.org/10.1186/1476-511X-8-12
Appears in Collections:(IBV) Artículos
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