insulin resistance in adipose tissue but not in liver is associated with aortic valve calcification

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2016
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Abstract
Background. Insulin resistance is involved in the pathogenesis of cardiovascular disease, but its relationship with cardiovascular calcification has yielded conflicting results. The purpose of the present study was to investigate the role of hepatic and adipose tissue insulin resistance on the presence of coronary artery (CAC > 0) and aortic valve calcification (AVC > 0). Methods. In 1201 subjects (52% women, 53.6±9.3 years old) without familiar and personal history of coronary heart disease, CAC and AVC were assessed by multidetector-computed tomography. Cardiovascular risk factors were documented and lipid profile, inflammation markers, glucose, insulin, and free fatty acids were measured. Hepatic insulin resistance (HOMA-IR) and adipose tissue insulin resistance (Adipo-IR) indices were calculated. Results. There was a significant relationship between HOMA-IR and Adipo-IR indices (r=0.758, p<0.001). Participants in the highest quartiles of HOMA-IR and Adipo-IR indices had a more adverse cardiovascular profile and higher prevalence of CAC > 0 and AVC > 0. After full adjustment, subjects in the highest quartile of Adipo-IR index had higher odds of AVC > 0 (OR: 2.40; 95% CI: 1.30–4.43), as compared to those in the lowest quartile. Conclusions. Adipo-IR was independently associated with AVC > 0. This suggests that abnormal adipose tissue function favors insulin resistance that may promote the development and progression of AVC.
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jorge-galarza2016diseaseinsulin Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Esteban Jorge-Galarza;Carlos Posadas-Romero;Margarita Torres-Tamayo;Aida X. Medina-Urrutia;Marco A. Rodas-Díaz;Rosalinda Posadas-Sánchez;Gilberto Vargas-Alarcón;María del Carmen González-Salazar;Guillermo C. Cardoso-Saldaña;Juan G. Juárez-Rojas
Journal international journal of psychology : journal international de psychologie
Year 2016
DOI
10.1155/2016/9085474
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