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Background: Hemoglobin, being a hemoprotein, may operate as a peroxidase due to the hemolysis process and the release of heme into the bloodstream. Objective: Evaluation of the oxidative biomarkers and peroxidase activity of hemoglobin in patients with the final stage of renal failure. Materials and Methods: The study encompassed a total of 200 blood samples, with 140 samples collected from patients diagnosed with Chronic Kidney Disease (CKD) and 60 samples obtained from individuals who were considered healthy control subjects. Results: Levels of various serum parameters, including total protein, urea, creatinine, albumin, free amino, disulfide, ischemia-modified albumin (IMA), peroxidase activity, and specific activity, exhibited a significant increase in patients with Chronic Kidney Disease (CKD) when compared to the control group consisting of healthy individuals. Conversely, CKD patients demonstrated a notable decrease in levels of glomerular filtration rate (GFR), hemoglobin, native thiols, and total thiols compared to the control group. Conclusion: Oxidative biomarkers may present useful information about oxidative stress and help to diagnose CKD patients in their advanced stages of the disease.
Hani et al. (Mon,) studied this question.