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Nonsteroidal Anti-inflammatory Drug Oxaprozin is Beneficial Against Seizure-induced Memory Impairment in an Experimental Model of Seizures in Rats: Impact On Oxidative Stress and Nrf2/HO-1 Signaling Pathway

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Abstract

There is substantial evidence that anti-inflammatory agents and antioxidants have neuroprotective properties and may be useful in the treatment of neurodegenerative disorders. In this regard, the effects of oxaprozin (OXP) (a nonsteroidal anti-inflammatory drug) on the experimental model of seizure and memory impairment caused by seizures in rats were investigated in the present study. Seizures in male Wistar rats (200–250 g, 8 weeks) were induced by pentylenetetrazol (PTZ, 60 mg/kg). The anticonvulsant effects of OXP (100, 200, and 400 mg/kg, administered intraperitoneally) were evaluated in the seizure model. The effect on memory was assessed using the passive avoidance (PA) test. After behavioral tests, the animals underwent deep anesthesia and were euthanized painlessly. Animal serum was isolated for antioxidant assays (MDA and GPx). The animals' brains (hippocampus) were also isolated to gauge the relative expression of genes in the oxidative stress pathway (Nrf2/HO-1). Intraperitoneal injection of OXP decreased the mean score on the Racine scale compared to the PTZ group. Moreover, in the PA test, OXP caused a significant increase in retention latency (RL) and total time spent in the light compartment (TLC) compared to the PTZ group. Biochemical tests showed that OXP was able to significantly increase GPx serum levels and significantly reduce MDA serum levels compared to the PTZ group. Quantitative polymerase chain reaction (qPCR) results also revealed that OXP counteracted the negative effects of PTZ by significantly increasing the expression of the Nrf2 and Hmox1 genes. Overall, this study suggests the potential neuroprotective effects of the nonsteroidal anti-inflammatory drug OXP in a model of memory impairment caused by seizures via inhibition of the oxidative stress pathway.

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Data Availability

The analyzed data sets generated during the study are available from the corresponding author on reasonable request.

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Acknowledgements

This study is financially supported by Islamic Azad University.

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Contributions

PK: Data curation, Formal analysis, Investigation, Methodology, Software, Validation, Visualization, Writing–original draft, Writing–review & editing. NM: Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Supervision, Validation, Visualization, Writing–original draft, Writing-review & editing. MK: Conceptualization, Funding acquisition, Methodology, Project administration, Supervision, Writing–original draft, Writing–review & editing. MB: Project administration, Resources, Writing–original draft, Writing–review & editing. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Naser Mirazi.

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The research protocol was also approved by the university’s animal ethics committee (IR.IAU.TNB.REC.1400.016).

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Not applicable.

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The authors state that there was no conflict of interest in this study.

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Khatami, P., Mirazi, N., Khosravi, M. et al. Nonsteroidal Anti-inflammatory Drug Oxaprozin is Beneficial Against Seizure-induced Memory Impairment in an Experimental Model of Seizures in Rats: Impact On Oxidative Stress and Nrf2/HO-1 Signaling Pathway. J Mol Neurosci 72, 880–887 (2022). https://doi.org/10.1007/s12031-022-01967-2

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  • DOI: https://doi.org/10.1007/s12031-022-01967-2

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