• J. Investig. Med. · Dec 2022

    Organochlorine pesticides, oxidative stress biomarkers, and leukemia: a case-control study.

    • Arash Rafeeinia, Gholamreza Asadikaram, Mehrnaz Karimi-Darabi, Moslem Abolhassani, Mojtaba Abbasi-Jorjandi, and Vahid Moazed.
    • Neuroscience Research Center, Institute of Neuropharmacology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
    • J. Investig. Med. 2022 Dec 1; 70 (8): 173617451736-1745.

    AbstractExposure to pesticides has been linked to an elevated risk of leukemia. The present research aimed to evaluate the relationship between organochlorine (OC) pesticides and biomarkers of oxidative stress in patients with leukemia. This work was conducted on 109 patients with leukemia and 109 healthy controls. The serum concentrations of seven derivatives of OCs including alpha-hexachlorocyclohexane (HCH), beta-HCH, gamma-HCH, 2,4-dichlorodiphenyltrichloroethane (DDT), 4,4-DDT, 2,4-dichlorodiphenyldichloroethylene (DDE), and 4,4-DDE along with acetylcholinesterase (AChE), glutathione peroxidase (GPx), superoxide dismutase (SOD), paraoxonase-1 (PON1), and catalase (CAT) activities as well as total antioxidant capacity (TAC), nitric oxide (NO), protein carbonyl (PC), and malondialdehyde (MDA) levels were measured in all the subjects. Levels of OCs were remarkably higher in patients with leukemia compared with the controls (p<0.05). In addition, levels of SOD, AChE, GPx, PON1, and TAC were remarkably lower in patients with leukemia compared with controls (p<0.05). In contrast, MDA, NO, and PC concentrations were higher in patients with leukemia than in the controls (p<0.05). Moreover, the serum level of 4,4-DDE was negatively associated with GPx activity (p=0.038). Our findings suggest that OCs may play a role in the development of leukemia by disrupting the oxidant/antioxidant balance.© American Federation for Medical Research 2022. No commercial re-use. See rights and permissions. Published by BMJ.

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