학술논문

Effect of bariatric surgery on inflammation and endothelial dysfunction as processes underlying subclinical atherosclerosis in morbid obesity.
Document Type
Academic Journal
Author
Carmona-Maurici J; Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain.; Cuello E; Gastrointestinal Surgery Department, Arnau de Vilanova University Hospital, IRB Lleida, University of Lleida, Lleida, Spain.; Ricart-Jané D; Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain.; Miñarro A; Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, Barcelona, Spain.; Baena-Fustegueras JA; Gastrointestinal Surgery Department, Arnau de Vilanova University Hospital, IRB Lleida, University of Lleida, Lleida, Spain.; Peinado-Onsurbe J; Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain. Electronic address: jpeinado@ub.edu.; Pardina E; Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain.
Source
Publisher: Elsevier Country of Publication: United States NLM ID: 101233161 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-7533 (Electronic) Linking ISSN: 15507289 NLM ISO Abbreviation: Surg Obes Relat Dis Subsets: MEDLINE
Subject
Language
English
Abstract
Background: Inflammation and endothelial dysfunction are associated with morbid obesity (MO) and atherosclerosis.
Objective: To evaluate inflammation and endothelial function as the initial mechanisms underlying subclinical atherosclerosis in patients with MO, with and without atheromas, and their evolution after bariatric surgery (BS).
Setting: Arnau de Vilanova University Hospital and University of Barcelona.
Methods: Plasma samples from 66 patients with MO were obtained before BS and 6 and 12 months after BS. Patients were divided into 2 groups based on the presence of atheromatous plaques (detected by ultrasound imaging).
Results: Inflammation was increased as demonstrated by changes in the levels of fibroblast growth factor 21, adiponectin, leptin, interleukin 6, tumor growth factor α, nonesterified free fatty acids, lipoprotein(a) and C-reactive protein (CRP). Endothelial dysfunction was characterized by impaired angiogenesis (measured through angiopoietin 1 and 2 and brain-derived neurotrophic factor), vascular function (changes in endothelin 1 and thrombomodulin levels), and diapedesis (changes in intercellular and vascular cell adhesion molecules, and E- and P-selectins). Both mechanisms occurred regardless of the presence of atheromas. BS ameliorated both processes even in patients who already had subclinical atherosclerosis. However, CRP, thrombomodulin, and P-selectin levels were higher in patients with atheromas.
Conclusions: Endothelial dysfunction and inflammation were detected before the appearance of structural changes in vessel walls on ultrasonography images. BS might prevent or slow atherogenesis in the early stages by breaking the vicious circle between inflammation and endothelial dysfunction. CRP, thrombomodulin, and P-selectin may have a critical role in plaque development and, together with the study of endothelial dysfunction, might be useful in assessing early atherosclerosis and its evolution after BS.
(Copyright © 2020 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)