Aortic Intima Media Thickness is Increased and Closely Related to Elevated Oxidative Stress Increases in Beta Thalassemia Minor Aumento da Espessura Médio-intimal Aórtica e sua Relação com Estresse Oxidativo Elevado em Pacientes com Talassemia Menor


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Tumer C., Saler T., Aslan M. Z. , Koc A. S. , Koc M., Erel O., ...More

Arquivos Brasileiros de Cardiologia, vol.119, no.3, pp.426-435, 2022 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 119 Issue: 3
  • Publication Date: 2022
  • Doi Number: 10.36660/abc.20210666
  • Journal Name: Arquivos Brasileiros de Cardiologia
  • Journal Indexes: Science Citation Index Expanded, Scopus, EMBASE, MEDLINE, Directory of Open Access Journals
  • Page Numbers: pp.426-435
  • Keywords: Beta-Thalassemia, Carotid Intima-Media Thickness, Oxidative Stress

Abstract

© 2022, Sociedade Brasileira de Cardiologia. All rights reserved.Background: Abdominal aortic intima media thickness (A-IMT) may be an early marker of subclinical atherosclerosis and an objective indicator of increased oxidative stress in beta-thalassemia minor patients. Objective: To evaluate whether aortic and carotid IMTs change with oxidative stress and to assess the relationship between these parameters in beta-thalassemia minor patients. Methods: The study included 80 patients diagnosed with beta-thalassemia minor, and 50 healthy individuals with similar age and gender. After routine procedures, blood samples were collected from the study groups for thiol-disulfide hemostasis and ischemia-modified albumin (IMA). C-IMT measurements were performed in four different regions (right and left internal and external carotid artery) by ultrasonography. In addition, A-IMT measurement was performed by abdominal ultrasonography. Statistically significant p value was set as <0.05 for all comparisons. Results: In beta-thalassemia minor patients, native thiol, total thiol and native thiol / total thiol ratio were lower, and the IMA, disulfide / native thiol ratio and disulfide / total thiol ratios were higher than in healthy control group. A-IMT measurement was significantly higher in beta-thalassemia minor group than controls (1.46±0.37 vs 1.23±0.22 and p<0.001). When the parameters associated with A-IMT in univariate analysis were evaluated by multivariate linear regression analysis, A-IMT was positively related, and native thiol and total thiol levels were negatively and closely related to IMA (p<0.01). Conclusion: We demonstrated, for the first time, that oxidative stress status increased with increased A-IMT, while C-IMT remained unchanged in beta-thalassemia minor patients.