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Updated: Jul 18, 2026

Acute Myocardial Infarction in Rats
Published on: February 16, 2011
Adenosine deaminase in ischemia reperfusion injury in patients with myocardial infarction
Aiki Kaul1, M Chandra, M K Misra
1Department of Biochemistry, Lucknow University, Lucknow 226 007, India.
Insights
Erythrocyte adenosine deaminase activity and malondialdehyde levels increase significantly after thrombolysis in myocardial infarction patients, indicating adenosine deaminase
Area of Science:
- Biochemistry
- Cardiology
- Medical Research
Background:
- Myocardial infarction (MI) is a leading cause of mortality.
- Thrombolysis is a critical treatment for MI, but reperfusion injury can occur.
- Biomarkers for reperfusion injury are needed to guide treatment.
Purpose of the Study:
- To compare erythrocyte adenosine deaminase activity and lipid peroxidation levels in myocardial infarction patients before and after thrombolysis.
- To assess the role of adenosine deaminase in myocardial reperfusion injury.
Main Methods:
- Comparative study design.
- Measurement of erythrocyte adenosine deaminase activity.
- Measurement of Malondialdehyde (MDA) as a marker of lipid peroxidation.
- Inclusion of myocardial infarction patients (pre- and post-thrombolysis) and healthy controls.
Main Results:
- Adenosine deaminase activity was significantly elevated in post-thrombolysed patients compared to pre-thrombolysed and healthy individuals.
- Malondialdehyde (MDA) levels were also significantly increased in post-thrombolysed patients.
- These findings suggest increased oxidative stress and cellular damage post-reperfusion.
Conclusions:
- Adenosine deaminase plays a significant role in myocardial reperfusion injury.
- Elevated adenosine deaminase activity may serve as a biomarker for reperfusion injury.
- Further research is warranted to explore therapeutic strategies targeting adenosine deaminase in MI.
Abstract:
A comparative study on the levels of erythrocyte adenosine deaminase and lipid peroxidation has been undertaken in patients with myocardial infarction before and after thrombolysis along with matched healthy individuals. Our findings show that adenosine deaminase activity is highly elevated in post-reperfused patients when compared to pre- thrombolysed and healthy persons. Malondialdehyde(MDA) levels are also significantly increased in post-thrombolysed patients. The study reveals an important role of adenosine deaminase in reperfusion injury in patients with myocardial infarction.

