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Ameliorative effects of Copper(II) albumin complex against zinc oxide nanoparticles induced oxidative DNA damage in Sprague Dawley rats

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Abstract

Objective

The present study was carried out to investigate the possible protective role of copper (II) albumin against zinc oxide nanoparticles (ZnONPs) provoked DNA damage and hepatotoxicity in rats.

Methods

Forty adult male Sprague Dawley rats were randomly divided into five groups; Group I: the control group maintained on a regular diet, Group II: received 1 ml/day of milk as the solvent of Cu (II) albumin complex, Group III: received Cu (II) albumin at 0.03 µg/gm, Group IV: exposed to ZnONPs (400 mg/kg/day), and Group V: exposed to 400 mg/kg/day ZnONPs plus Cu (II) albumin. All treatments were administered for 30 days. At the end of the experiment, animals were euthanized for collection of blood and liver samples. DNA damage in blood and liver was evaluated by using comet assay, while hepatotoxicity was evaluated from histopathological changes of hepatic tissue and liver enzymes (ALT and AST). The oxidative status parameters including nitric oxide (NO), glutathione peroxidase, malondialdehyde (MDA), and total antioxidant capacity (TAC) were also measured.

Results

The results showed that ZnONPs induced oxidative stress through a significant increase in MDA and NO activities, a significant decrease in TAC, and slight decrease in glutathione peroxidase. Significant DNA damage, a significant increase in AST, and a slight increase in ALT were accompanied by histological changes in the liver ZnONPs exposed group. Concurrent Cu (II) albumin supplement to ZnONPs-treated rats in Group IV reversed most of the histopathological changes and DNA damage, significantly lowered ALT and AST levels as well as MDA and NO, and elevated the TAC and GPx.

Conclusion

Based on these results, it can be concluded that Cu (II) albumin effectively protects against ZnONPs-induced hepatic dysfunction and DNA damage in rats.

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Authors and Affiliations

  1. Department of Forensic Medicine and Toxicology, Faculty of Medicine, Assiut University, Assiut, 71516, Egypt

    Aya M. Abdelnaem, Hala Fathy & Doaa Almaz

  2. Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71516, Egypt

    Doha Yahia

  3. Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71516, Egypt

    Marwa F. Ali

  4. Department of Biochemistry, Faculty of Medicine, Assiut University, Assiut, 71516, Egypt

    Ahmed Y. Nassar

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  1. Aya M. Abdelnaem
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Contributions

AMA was involved in preparation of the protocol, performed the experiment, collection of samples, statistical analysis, and writing the article. HF contributed to preparation of the protocol, writing, and revision of the manuscript. DY was involved in comet assay analysis, writing and revision of the manuscript, data analysis, and interpretation of results. MFA contributed to sample collection and preparation for histological examination, photographing, and interpretation of results. AYN was involved in preparation of Copper (II) Albumin Complex. DA contributed to data analysis, preparation, and revision of the manuscript.

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Correspondence to Doha Yahia.

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Conflict of interest

Aya M. Abdelnaem, Hala Fathy, Doha Yahia, Marwa F. Ali, Ahmed Y. Nassar, Doaa Almaz declare that they have no conflict of interest.

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All authors participated in the preparation of the current study.

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The study protocol was approved by the ethical committee of the Faculty of Medicine, Assiut University, Egypt (No. 17101068,4-2020).

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Abdelnaem, A.M., Fathy, H., Yahia, D. et al. Ameliorative effects of Copper(II) albumin complex against zinc oxide nanoparticles induced oxidative DNA damage in Sprague Dawley rats. Toxicol. Environ. Health Sci. (2024). https://doi.org/10.1007/s13530-024-00208-w

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