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Published in: Cardiovascular Diabetology 1/2018

Open Access 01-12-2018 | Original investigation

Effects of 6-month treatment with the glucagon like peptide-1 analogue liraglutide on arterial stiffness, left ventricular myocardial deformation and oxidative stress in subjects with newly diagnosed type 2 diabetes

Authors: Vaia Lambadiari, George Pavlidis, Foteini Kousathana, Maria Varoudi, Dimitrios Vlastos, Eirini Maratou, Dimitrios Georgiou, Ioanna Andreadou, John Parissis, Helen Triantafyllidi, John Lekakis, Efstathios Iliodromitis, George Dimitriadis, Ignatios Ikonomidis

Published in: Cardiovascular Diabetology | Issue 1/2018

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Abstract

Background

Incretin-based therapies are used in the treatment of type 2 diabetes mellitus (T2DM) and obesity. We investigated the changes in arterial stiffness and left ventricular (LV) myocardial deformation after 6-month treatment with the GLP-1 analogue liraglutide in subjects with newly diagnosed T2DM.

Methods

We randomized 60 patients with newly diagnosed and treatment-naive T2DM to receive either liraglutide (n = 30) or metformin (n = 30) for 6 months. We measured at baseline and after 6-month treatment: (a) carotid-femoral pulse wave velocity (PWV) (b) LV longitudinal strain (GLS), and strain rate (GLSR), peak twisting (pTw), peak twisting velocity (pTwVel) and peak untwisting velocity (pUtwVel) using speckle tracking echocardiography. LV untwisting was calculated as the percentage difference between peak twisting and untwisting at MVO (%dpTw–UtwMVO), at peak (%dpTw–UtwPEF) and end of early LV diastolic filling (%dpTw–UtwEDF) (c) Flow mediated dilatation (FMD) of the brachial artery and percentage difference of FMD (FMD%) (d) malondialdehyde (MDA), protein carbonyls (PCs) and NT-proBNP.

Results

After 6-months treatment, subjects that received liraglutide presented with a reduced PWV (11.8 ± 2.5 vs. 10.3 ± 3.3 m/s), MDA (0.92 [0.45–2.45] vs. 0.68 [0.43–2.08] nM/L) and NT-proBNP (p < 0.05) in parallel with an increase in GLS (− 15.4 ± 3 vs. − 16.6 ± 2.7), GLSR (0.77 ± 0.2 vs. 0.89 ± 0.2), pUtwVel (− 97 ± 49 vs. − 112 ± 52°, p < 0.05), %dpTw–UtwMVO (31 ± 10 vs. 40 ± 14), %dpTw–UtwPEF (43 ± 19 vs. 53 ± 22) and FMD% (8.9 ± 3 vs. 13.2 ± 6, p < 0.01). There were no statistically significant differences of the measured markers in subjects that received metformin except for an improvement in FMD. In all subjects, PCs levels at baseline were negatively related to the difference of GLS (r = − 0.53) post-treatment and the difference of MDA was associated with the difference of PWV (r = 0.52) (p < 0.05 for all associations) after 6-month treatment.

Conclusions

Six-month treatment with liraglutide improves arterial stiffness, LV myocardial strain, LV twisting and untwisting and NT-proBNP by reducing oxidative stress in subjects with newly diagnosed T2DM.
ClinicalTrials.gov Identifier NCT03010683
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Metadata
Title
Effects of 6-month treatment with the glucagon like peptide-1 analogue liraglutide on arterial stiffness, left ventricular myocardial deformation and oxidative stress in subjects with newly diagnosed type 2 diabetes
Authors
Vaia Lambadiari
George Pavlidis
Foteini Kousathana
Maria Varoudi
Dimitrios Vlastos
Eirini Maratou
Dimitrios Georgiou
Ioanna Andreadou
John Parissis
Helen Triantafyllidi
John Lekakis
Efstathios Iliodromitis
George Dimitriadis
Ignatios Ikonomidis
Publication date
01-12-2018
Publisher
BioMed Central
Published in
Cardiovascular Diabetology / Issue 1/2018
Electronic ISSN: 1475-2840
DOI
https://doi.org/10.1186/s12933-017-0646-z

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