• Neuroscience · Nov 2023

    Otoprotective effects of Quercetine against oxidative damages induced by simultaneous and independent exposure to noise and silver nanoparticles in rat's cochlea.

    • Zahra Goodarzi, Ali Khavanin, Esmaeil Karami, Ali Rashidy-Pour, Marzieh Belji Kangarlou, Mehrafarin Kiani, and Jaleh Razmjouei.
    • Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. Electronic address: zgoodarzi@modares.ac.ir.
    • Neuroscience. 2023 Nov 1; 531: 9911699-116.

    AbstractThe aim of this study was to investigate the otoprotective effects of Quercetin (Que) against both noise-induced hearing loss (NIHL) and the ototoxicity of silver nanoparticles (SNPs) in rats. Forty-two male Wistar rats were divided into seven groups (n = 6): control, SNPs, Que (100 mg/kg) plus SNPs (100 mg/kg), noise (104 dB), Que plus noise, noise plus SNPs, and noise plus Que plus SNPs. In the weight change results, there was no significant difference between the groups exposed to noise plus SNPs and SNPs compared to the control group. However, animals had significant changes in DPOAE amplitude at 1 and 3 days post-exposure when compared to baseline. Additionally, the DPOAE value of rats administered with Que plus SNPs was higher than in all other groups. Que also decreased the levels of TACT, MDA, IL-6, TNF-α, and NOX3 in the groups exposed to noise and SNPs and increased the SOD level and expression of myosin heavy chain VII (MYH7) and β-tubulin III (TUBB3) proteins. Furthermore, Que decreased structural changes in the animals' cochlea. Our findings indicate that pretreatment with Que efficiently counteracted the adverse effects of noise and SNPs on inner hair cell, outer hair cell, and nerve cells, which are responsible for high-frequency perception.Copyright © 2023 IBRO. Published by Elsevier Ltd. All rights reserved.

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