Postprandial Studies Uncover Differing Effects on HDL Particles of Overt and Subclinical Hypothyroidism

Thyroid : Official Journal of the American Thyroid Association
Anne Nm McGowanJames Gibney

Abstract

Overt hypothyroidism (OH) is associated with abnormal lipid metabolism and endothelial dysfunction under fasting conditions. The balance of evidence suggests similar but less marked abnormalities in subclinical hypothyroidism (SCH). There are few data regarding the metabolic and vascular effects of OH or SCH under postprandial conditions. This was a cross-sectional study, carried out in a teaching hospital. Subjects with OH (n = 21), SCH (n = 28), and controls (n = 44) matched for age, sex, and body mass index (BMI) were studied under fasting and postprandial conditions. Postprandial lipid metabolism with particular emphasis on intestinally derived lipoproteins, HDL cholesterol (HDL), and endothelial function were compared in subjects with OH and SCH who were matched for age, sex, and BMI. Apolipoprotein B48 (Apo B48), a measure of intestinally derived lipoprotein, was measured by enzyme-linked immunosorbent assay. HDL was subfractionated into HDL2 and HDL3 by rapid ultracentrifugation. Functional aspects of HDL were determined by monitoring the activities of cholesteryl-ester-transfer-protein (CETP) and lecithin-cholesterol-acyl-transferase (LCAT). Systemic and HDL-associated inflammation was assessed by measuring serum-amyloi...Continue Reading

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Citations

Nov 15, 2016·The Journal of Clinical Endocrinology and Metabolism·William M WiddowsonJames Gibney
Sep 21, 2018·Frontiers in Endocrinology·Leonidas H Duntas, Gabriela Brenta

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Methods Mentioned

BETA
hormone replacement therapy
flow cytometry
enzyme-linked immunosorbent assay
ELISA

Clinical Trials Mentioned

NCT00134264
NCT00658515

Software Mentioned

PASW Statistics
SPSS

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