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The combined effect of titanium dioxide nanoparticles and cypermethrin on male reproductive toxicity in rats

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Abstract

Titanium nanoparticles and pyrethroid pesticides are now being widely used in industrial, agriculture, and biomedical applications. In recent years, their health safety profiles have aroused concerns among health scientists. This study mainly explored the combined effects of titanium dioxide nanoparticles (TiO2NPs) and cypermethrin (CYP) on reproductive toxicity in male rats by gavage for 90 days. Thirty-two male Sprague–Dawley rats were assigned to four groups: the control group, the TiO2NPs group, the CYP group, and the combined titanium dioxide nanoparticles with cypermethrin (TiO2NPs + CYP) group. The results of biochemical analysis on testicular tissue homogenate showed that TiO2NPs and CYP mixtures decreased the activities of glutathione peroxidase (GSH-Px) and catalase (CAT) while increasing the activity of malondialdehyde (MDA) and lactate dehydrogenase (LDH). Meanwhile, the results of two-way factorial analysis of variance (ANOVA) showed a significant effect on GSH-Px, CAT, LDH, testicular cell apoptosis, and sperm quality in rats after exposure. Furthermore, the combined exposure group exhibited apoptosis of testicular cells and DNA damage. The results indicated that exposure to a mixture of TiO2NPs and CYP had adverse effects on the reproductive status of male rats.

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Data availability

The datasets generated and/or analyzed during the current study are not publicly available due to that the data is original data, but are available from the corresponding author on reasonable request. The DNA was not extracted and analyzed for the study. This study only examined whether titanium dioxide nanoparticles and cypermethrin caused DNA damage in the rats.

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Funding

This work was supported by Weifang Medical University “Healthy Shandong” Major Social Risk Prediction and Governance Collaborative Innovation Center, the Shandong Medical and Health Technology Development Plan Project (202102080346).

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Contributions

All the authors contributed to the study conception and design. The experimental design and implementation were performed by Mingqing Zhong, Xianzhi He, and Yu Fu; the literature search, data collection, and analysis were performed by Yuxin Li, Ruoyu Zhang, Ruolan You, Feiyan Tao, and Lei Fang. The first draft of the manuscript was written by Yuxin Li, Qingfeng Zhai, and Yuanyuan Li drafted and critically revised the work. All the authors commented on previous versions of the manuscript. All the authors read and approved the final manuscript.

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Correspondence to Qingfeng Zhai.

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Ethics approval and consent to participate.

All experiments were approved by the Animal Experimental Center of Weifang Medical College Committee. All experiments were performed in accordance with relevant guidelines and regulations. All methods are reported in accordance with ARRIVE guidelines for the reporting of animal experiments.

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The authors declare no competing interests to disclose.

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Responsible Editor: Ludek Blaha

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Yuxin Li, Mingqing Zhong, and Xianzhi He contributed equally to this work.

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Li, Y., Zhong, M., He, X. et al. The combined effect of titanium dioxide nanoparticles and cypermethrin on male reproductive toxicity in rats. Environ Sci Pollut Res 30, 22176–22187 (2023). https://doi.org/10.1007/s11356-022-23796-x

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  • DOI: https://doi.org/10.1007/s11356-022-23796-x

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