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Cholesterol efflux alterations in adolescent obesity: role of adipose-derived extracellular vesical microRNAs.


ABSTRACT: BACKGROUND:Macrophage cholesterol efflux capacity has been identified as a predictor for cardiovascular disease. We assessed the relationship between adipocyte-derived extracellular vesicle microRNAs and macrophage cholesterol efflux capacity. METHODS:We assessed an adolescent cohort (n?=?93, Age, median (IQR)?=?17 (3) year, Female?=?71, Male?=?22) throughout the BMI continuum (BMI?=?45.2 (13.2) kg/m2) for: (1) cholesterol efflux capacity and lipoprotein profiles; (2) adipocyte-derived extracellular vesicle microRNAs in serum; (3) the role of visceral adipose tissue extracellular vesicle in regulation of cholesterol efflux and cholesterol efflux gene expression in THP-1 macrophages in vitro. RESULTS:Efflux capacity was significantly associated with HDL (r?=?0.30, p?=?0.01) and LDL (r?=?0.33, p?=?0.005) particle size. Multivariate-analysis identified six microRNAs associated (p?

SUBMITTER: Barberio MD 

PROVIDER: S-EPMC6647309 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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<h4>Background</h4>Macrophage cholesterol efflux capacity has been identified as a predictor for cardiovascular disease. We assessed the relationship between adipocyte-derived extracellular vesicle microRNAs and macrophage cholesterol efflux capacity.<h4>Methods</h4>We assessed an adolescent cohort (n = 93, Age, median (IQR) = 17 (3) year, Female = 71, Male = 22) throughout the BMI continuum (BMI = 45.2 (13.2) kg/m<sup>2</sup>) for: (1) cholesterol efflux capacity and lipoprotein profiles; (2) a  ...[more]

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