腹部肥胖对载脂蛋白E2/4携带者脂质-脂蛋白谱的影响:一种明显双重性的效应

Influence of Abdominal Obesity on the Lipid-Lipoprotein Profile in Apoprotein E2/4 Carriers: The Effect of an Apparent Duality.

作者信息

Villeneuve Sylvia, Brisson Diane, Gaudet Daniel

机构信息

Department of Medicine, Université de Montréal, Montreal, QC, Canada H3T 1J4 ; ECOGENE-21, Chicoutimi, QC, Canada G7H 7K9 ; Douglas Mental Health University Institute, Research Centre, Verdun, QC, Canada H4H 1R3 ; Department of Psychiatry, McGill University, Montreal, QC, Canada H3A 1A1.

Department of Medicine, Université de Montréal, Montreal, QC, Canada H3T 1J4 ; ECOGENE-21, Chicoutimi, QC, Canada G7H 7K9.

出版信息

J Lipids. 2015;2015:742408. doi: 10.1155/2015/742408. Epub 2015 Oct 28.

Abstract

Background. Apolipoprotein (Apo) E plays a key role in the handling of lipoprotein particles with ApoE2 and ApoE4 frequently having opposite effects compared to ApoE3. Some individuals simultaneously carry both E2 and E4 alleles. The impact of the ApoE2/4 genotype on lipid concentrations and its consequences on health remain poorly documented. Objective. This study compared the lipid profile between ApoE2/4 carriers and other ApoE genotypes in relation to the waist circumference. Methods. Cholesterol, triglyceride (TG), and ApoB concentrations were measured among 2,680 Caucasians. Multivariate logistic regression models were used to estimate the contribution of ApoE2/4 to various dyslipidemic profiles associated with abdominal obesity. Results. In presence of abdominal obesity, the lipid profile was as deteriorated in ApoE2/4 carriers as in carriers of other ApoE genotypes. There was a more pronounced effect on TG-rich lipoproteins, particularly in ApoE2/2 (a feature of type III dysbetalipoproteinemia), and non-high-density lipoprotein (HDL) cholesterol in ApoE4/4. Compared to ApoE2/2, ApoE2/4 carriers presented lower very-low-density lipoprotein (VLDL) cholesterol concentrations and VLDL-cholesterol/TG ratios, with or without obesity, and higher low-density lipoprotein (LDL) cholesterol concentrations. Conclusion. In presence of abdominal obesity, the influence of the ApoE2 allele could be less pronounced than that of ApoE4 among ApoE2/4 individuals.

摘要

背景。载脂蛋白(Apo)E在脂蛋白颗粒的代谢中起关键作用,与ApoE3相比,ApoE2和ApoE4常常具有相反的作用。一些个体同时携带E2和E4等位基因。ApoE2/4基因型对血脂浓度的影响及其对健康的后果仍缺乏充分的文献记载。目的。本研究比较了ApoE2/4携带者与其他ApoE基因型携带者的血脂谱与腰围的关系。方法。对2680名白种人测量了胆固醇、甘油三酯(TG)和载脂蛋白B浓度。使用多因素逻辑回归模型来估计ApoE2/4对与腹型肥胖相关的各种血脂异常谱的影响。结果。在存在腹型肥胖的情况下,ApoE2/4携带者的血脂谱与其他ApoE基因型携带者一样恶化。对富含TG的脂蛋白有更明显的影响,特别是在ApoE2/2(Ⅲ型异常β脂蛋白血症的一个特征)中,以及在ApoE4/4中对非高密度脂蛋白(HDL)胆固醇有更明显的影响。与ApoE2/2相比,无论有无肥胖,ApoE2/4携带者的极低密度脂蛋白(VLDL)胆固醇浓度和VLDL胆固醇/TG比值较低,而低密度脂蛋白(LDL)胆固醇浓度较高。结论。在存在腹型肥胖的情况下,在ApoE2/4个体中,ApoE2等位基因的影响可能不如ApoE4明显。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4ecd/4641183/e64dcd523649/JL2015-742408.001.jpg

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