Ectopic and Visceral Fat Deposition in Lean and Obese Patients With Type 2 Diabetes

 
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Ectopic and Visceral Fat Deposition in Lean and Obese Patients With Type 2 Diabetes

Rodgers, Christopher
Pavlides, Michael
Robson, Matthew
Levelt, Eylem
Sellwood, Joanna
Neubauer, Stefan
Francis, Jane
Sabharwal, Nikant
Kelly, Catherine
Rider, Oliver
Banerjee, Rajarshi
Karamitsos, Theodoros
Mahmod, Masliza
Clarke, Kieran
Ariga, Rina
Clarke, William
Antoniades, Charalambos
Schneider, Jurgen
Thomas, Sheena

BACKGROUND: Type 2 diabetes (T2D) and obesity are associated with nonalcoholic fatty liver disease, cardiomyopathy, and cardiovascular mortality. Both show stronger links between ectopic and visceral fat deposition, and an increased cardiometabolic risk compared with subcutaneous fat. OBJECTIVES: This study investigated whether lean patients (Ln) with T2D exhibit increased ectopic and visceral fat deposition and whether these are linked to cardiac and hepatic changes. METHODS: Twenty-seven obese patients (Ob) with T2D, 15 Ln-T2D, and 12 normal-weight control subjects were studied. Subjects underwent cardiac computed tomography, cardiac magnetic resonance imaging (MRI), proton and phosphorus MR spectroscopy, and multiparametric liver MR, including hepatic proton MRS, T1- and T2*-mapping yielding "iron-corrected T1" [cT1]. RESULTS: Diabetes, with or without obesity, was associated with increased myocardial triglyceride content (p = 0.01), increased hepatic triglyceride content (p = 0.04), and impaired myocardial energetics (p = 0.04). Although cardiac structural changes, steatosis, and energetics were similar between the T2D groups, epicardial fat (p = 0.04), hepatic triglyceride (p = 0.01), and insulin resistance (p = 0.03) were higher in Ob-T2D. Epicardial fat, hepatic triglyceride, and insulin resistance correlated negatively with systolic strain and diastolic strain rates, which were only significantly impaired in Ob-T2D (p < 0.001 and p = 0.006, respectively). Fibroinflammatory liver disease (elevated cT1) was only evident in Ob-T2D patients. cT1 correlated with hepatic and epicardial fat (p < 0.001 and p = 0.01, respectively). CONCLUSIONS: Irrespective of body mass index, diabetes is related to significant abnormalities in cardiac structure, energetics, and cardiac and hepatic steatosis. Obese patients with T2D show a greater propensity for ectopic and visceral fat deposition. Copyright © 2016 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

Article / Άρθρο
info:eu-repo/semantics/article

Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (EL)
Aristotle University of Thessaloniki (EN)

Αγγλική γλώσσα

2016
2016-10-11T07:29:14Z


Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Επιστημών Υγείας, Τμήμα Ιατρικής

urn:ISSN:07351097
Journal of the American College of Cardiology, vol.68 no.1 [2016] p.53-63

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info:eu-repo/semantics/openAccess



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