1. Synthesized gold nanoparticles mediated by Crassocephalum rubens extract down-regulate KIM-1/NGAL genes and inhibit oxidative stress in cadmium-induced kidney damage in rats.
- Author
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Adewale OB, Anadozie SO, Okpiri RT, Jaiyesimi KF, Owolabi OV, Akinlade O, Obafemi TO, Osukoya OA, and Onasanya A
- Subjects
- Rats, Male, Animals, Lipocalin-2 genetics, Lipocalin-2 metabolism, Cadmium toxicity, Gold, Rats, Wistar, Kidney metabolism, Oxidative Stress, Biomarkers metabolism, Metal Nanoparticles toxicity, Kidney Diseases chemically induced, Kidney Diseases prevention & control
- Abstract
Cadmium (Cd) exposure induces kidney damage by mediating oxidative stress and inflammation. In this study, the role of Crassocephalum rubens -gold nanoparticles ( C. rubens -AuNPs) in down-regulating kidney injury molecules-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL) genes and inhibiting oxidative stress in Cd-induced kidney damage in rats was investigated. Thirty male Wistar rats were distributed randomly into six groups ( n = 5). Group I served as control, while groups II, III, IV, and V rats were administered with 20 mg/kg b.w. cadmium chloride (CdCl
2 ) for five consecutive days. Groups III, IV, and V rats were treated, 24 h after the last dose of CdCl2 , with silymarin, 5 mg/kg and 10 mg/kg C. rubens -AuNPs, respectively, for 14 days. Group VI rats received 10 mg/kg C. rubens -AuNPs only for 14 days. Animals were sacrificed 24 h after the last dose of the treatment. Biochemical parameters such as kidney function markers, biomarkers of nephrotoxicity, and oxidative stress markers were assayed. Results indicated that 20 mg/kg b.w. CdCl2 caused kidney damage, as evidenced by significant ( p < 0.05) increase in the levels of serum urea and creatinine, malondialdehyde, reduced level of superoxide dismutase (SOD), and increased mRNA expression of the kidney injury biomarkers (KIM-1 and NGAL genes), when compared with the control. However, these changes were attenuated by both doses of C. rubens -AuNPs when compared with Cd-induced nephrotoxic rats. It can be suggested that C. rubens -AuNPs have the potential to ameliorate kidney damage induced by Cd via oxidative stress inhibition and down-regulation of KIM-1/NGAL genes.- Published
- 2023
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