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In vivo efficacy of silver nanoparticles against Syphacia muris infected laboratory Wistar rats

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Abstract

Helminth infections are a worldwide problem that affects both humans and animals in developing countries. The common pinworm Syphacia muris frequently infects lab rats and can obstruct the creation of unrelated biological experiments. The objective of this study was to examine the in vivo efficacy of silver nanoparticles against S. muris infected Wistar rats. Transmission electron microscopy and X-ray diffraction examinations of silver nanoparticles revealed highly pure polycrystals with a mean size of 4 nm. Rats were divided into group I, the control: received distilled water; groups II and III, the treated: received 2, 4 mg/kg b.w. of Ag NPs, respectively. At the end of the experimental period, all rats were euthanized and dissected for collecting worms. The surface topography of the recovered worms was displayed using light and scanning electron microscopy, and their physiological status was determined using oxidative stress biomarkers. The histological changes in the rat liver, kidney, and spleen were also examined. In the current study, Ag NPs administration revealed substantial alterations in worms collected from treated rats, including shrinkage of lips, peeling and rupture of body cuticles, and disruption of surface annulations. Also, induced a significant increase in malondialdehyde and nitric oxide levels, as well as a decrease in reduced glutathione, glutathione peroxidase and catalase levels compared to control group. Moreover, sections of treated rats' liver, kidney and spleen displayed normal cellular appearance. In conclusion, this is the first in vivo study to evaluate Ag NPs efficacy against S. muris in laboratory rats without significant toxicity.

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Acknowledgements

The Faculty of Science, Cairo University, Egypt, supports this work. The authors extend their appreciation to members of the Zoology Department for helping to complete this work.

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MF and SH have guided the development of ideas, MF and NA prepared different figures required, MF and HA wrote and revised the manuscript. All authors read and approved the final manuscript.

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Correspondence to Mona Fathi Fol.

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All authors assisted with the design and conduct of the studies. There were no conflicting interests that could have influenced the conduct and reporting of these studies.

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All procedures of using laboratory animals in this study met the Ethics of Research Committee regulations at the Faculty of Science, Cairo University and received the Approval Number: CUIF7519.

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Fol, M.F., Hamdi, S.AH., Abdel-Rahman, H.A. et al. In vivo efficacy of silver nanoparticles against Syphacia muris infected laboratory Wistar rats. J Parasit Dis 47, 744–756 (2023). https://doi.org/10.1007/s12639-023-01607-5

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  • DOI: https://doi.org/10.1007/s12639-023-01607-5

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