The Impact of Chemotherapy on Oxidant and Antioxidant Status in Acute Lymphoblastic Leukemia

Impact of Chemotherapy on Oxidant and Antioxidant Status

Authors

DOI:

https://doi.org/10.63841/iue3261023

Keywords:

Acute lymphoblastic leukemia, Antioxidant, Chemotherapy, Oxidative stress, Reactive oxygen species.

Abstract

Acute lymphoblastic leukemia (ALL) is a malignant disorder of lymphoid lineage. Chemotherapy remains the mainstay of treatment, yet it induces systemic damage partly through oxidative stress, which may worsen prognosis, increase relapse risk, and impair responsiveness to therapy.

A total of 64 individuals participated in the study: 21 newly diagnosed ALL (ND-ALL) patients with a median age of 10 years (IQR 3-27.5), 23 patients receiving maintenance chemotherapy with a median age of 13 years (IQR 5-23), and 20 healthy controls with a median age of 11.5 years (IQR 5-23), (cross-sectional study). Following remission induction treatment, ND-ALL patients were also reassessed (longitudinal study). ELISA kits were used to detect superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), total antioxidant capacity (T-AOC), malondialdehyde (MDA), 8-hydroxy-2′-deoxyguanosine(8-OHdG), and protein carbonyl (PC).

In the cross-sectional study, MDA (p = 0.05) and 8-OHdG (p = 0.001) were significantly higher in ND-ALL patients. SOD demonstrated a considerable decline (p = 0.001), the antioxidants GSH-PX and T-AOC also decreased significantly (p = 0.01). There were no significant differences between the maintenance group and the controls. Significant increases in MDA, 8-OHdG, and PC (p = 0.05, 0.01, 0.01, respectively), and decreases in GSH-PX, SOD, and T-AOC (p = 0.01, 0.05, 0.01, respectively) were observed following treatment.

Chemotherapy significantly alters the oxidant-antioxidant balance in patients with ALL. Treatment was associated with an increase in oxidative stress markers, accompanied by a marked reduction in antioxidant defense capacity.

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Author Biographies

  • Khanda Najat Assaf, Department of Biology College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, IRAQ

    Khanda N. Assaf is an M.Sc. student in Hematology at the Department of Biology, College of Science, Salahaddin University. She received the B.Sc. degree in Biology from Salahaddin University. Previously, she worked as a science teacher at Sulaymaniyah International School (SABIS). Her research interests include hematology, and leukemia. She has participated in national workshops and academic training activities.

  • Sarbaz Ibrahim Mohammed, Department of Biology College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, IRAQ

    Sarbaz I. Muhammed is a Professor at the Department of Biology, College of Science, Salahaddin University. He got the B.Sc. degree in Biology in 1986-87, the M.Sc. degree in Animal physiology in 1997, and the Ph.D. degree in Animal physiology/Hematology in 2007. His research interests are in Blood science; Dr. Sarbaz is a member of the Syndicate Biology Society, has published 38 papers, and participated in 12 international and national workshops and conferences.

     

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Published

2026-04-25

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Biology

How to Cite

The Impact of Chemotherapy on Oxidant and Antioxidant Status in Acute Lymphoblastic Leukemia: Impact of Chemotherapy on Oxidant and Antioxidant Status. (2026). Academic Journal of International University of Erbil, 3(2), 1023-1032. https://doi.org/10.63841/iue3261023