Naringin protects against colistin-induced sciatic nerve damage by reducing oxidative stress, apoptosis and inflammation damage

Yilmaz S., KÜÇÜKLER S., Şi̇Mşek H., Aygörmez S., Kandemir F. M.

Journal of Experimental and Clinical Medicine (Turkey), vol.41, no.1, pp.53-59, 2024 (Scopus) identifier


Colistin is used in treatment against gram-negative bacteria. It causes toxic effects due to oxidative stress in a dose-dependent manner. Naringin is a flavonoid with strong antioxidant properties found naturally in many plants, especially citrus fruits. This study aimed to determine the protective effects of NRG in CLS-induced sciatic nerve injury. Thirty-five male Spraque Sprague rats were randomly divided into five groups: control, NRG, CLS, CLS+NRG 50, and CLS+NRG 100. CLS was administered intraperitoneally at a 15 mg/kg dose for seven days. NRG was administered orally at 50 or 100 mg/kg doses for seven days. Sciatic nerve tissues were collected and analyzed for oxidative stress markers, inflammation, and apoptosis damage levels by biochemical methods. CLS caused toxic damage in sciatic nerve tissue by increasing lipid peroxidation (MDA) and decreasing antioxidant levels (SOD, CAT, GPx, and GSH); increasing NF-κB, TNF-α, nNOS release; increasing apoptotic factor (Caspase-3); decreasing HO-1 and nCAM; and inducing 8-OHdG, MAPK and GFAP (p<0.05). NRG, on the other hand, reversed all these changes in sciatic nerve tissue, and reduced CLS-induced oxidative stress damage, inflammatory damage and apoptotic damage (p<0.05). These effects were more effective at the 100 mg/kg dose of NRG than at the 50 mg/kg dose (p<0.05). NRG showed a protective effect against CLS-induced sciatic nerve toxicity.