Oxidants and antioxidants in myocardial infarction (MI); Investigation of ischemia modified albumin, malondialdehyde, superoxide dismutase and catalase in individuals diagnosed with ST elevated myocardial infarction (STEMI) and non-STEMI (NSTEMI)

Oxidative Stress and Antioxidant status in ACS.

  • Nesim Aladağ University of Health Sciences, Van Training and Research Hospital, Cardiology Department, Van, Turkey
  • Ramazan Asoğlu
  • Mahmut Özdemir
  • Emin Asoğlu
  • Rukiye Derin Atabey
  • Canan Demir
  • Halit Demir
Keywords: STEMI, NSTEMI, ischemia modified albumin, malondialdehyde acid, superoxide dismutase, catalase.


Background: Coronary ischemia can lead to myocardial damage and necrosis. The pathogenesis of cardiovascular diseases often includes increased oxidative stress and decreased antioxidant defense. The study aimed to assess levels of ischemia modified albumin (IMA), malondialdehyde acid (MDA), superoxide dismutase (SOD), and catalase in individuals diagnosed with ST elevated myocardial infarction (STEMI) and non-STEMI.

Methods: The present study prospectively included 50 STEMI patients, 55 NSTEMI patients, and 55 healthy subjects. Only patients who were recently diagnosed with STEMI or NSTEMI were included in this study. IMA, MDA, SOD, and catalase activities were measured spectrophotometrically. Significant coronary artery lesions were determined by angiography.

Results: Patients with ACS had significantly greater IMA and MDA values than the healthy controls (p<0.001). In addition, patients with STEMI had IMA levels that were significantly greater than those of the patients with NSTEMI (p <0.001), while the reverse was true for MDA levels (p<0.001). The healthy controls had the highest levels of SOD and catalase levels, followed by patients with STEMI and patients with NSTEMI, respectively (p <0.001).

There was a significant negative correlation among MDA and SOD with catalase levels (r = -0.771 p <0.001 MDA vs catalase; r = -0.821 p <0.001 SOD vs catalase).

Conclusions: Data obtained in this study reveals that compared to healthy controls, STEMI and NSTEMI patients had increased levels MDA and IMA, and decreased levels of SOD and catalase.


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