Mostafa M Bashandy PhD1, Hanan E Saeed2, Walaa M S Ahmed2, Marwa A Ibrahim3, Olfat Shehata2. 1. Department of Clinical Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt. 2. Department of Clinical Pathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt. 3. Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
Abstract
Background: Cadmium (Cd) is a highly toxic heavy metal that adversely affects both human and animal health. Chronic cadmium exposure causes serious kidney damage. The current study investigated the protective role of cerium oxide nanoparticles (CeO2NPs) against cadmium chloride (CdCl2)-induced renal injury. Method: One hundred and twenty male albino rats were divided into 6 equal groups. Group (C): considered as control group which was given distilled water orally. Group (NC.1 and NC.5): rats were injected i.p. with nanoceria at a dose of (0.1 and 0.5 mg/kg b.wt), respectively, twice a week for 2 weeks starting at the 15th day of the study. Group (Cd): rats were received CdCl2 orally (10 mg/kg b.wt) daily for 28 days. Groups (Cd + NC.1 and Cd + NC.5): rats were given CdCl2 orally (10 mg/kg b.wt) for 28 days and CeO2NPs by i.p. injection at a dose of (0.1 and 0.5 mg/kg b.wt), respectively, twice a week for 2 weeks started at the 15th day of the experiment. Results: The Cd group exhibited a significant increase in the serum levels of IL-1β, KIM-1, Cys-C, and β2-MG, downregulation of the antioxidant initiator genes such as Nrf-2, and up-regulation of apoptosis markers such as nibrin gene (NBN). Urine examination showed a high level of microalbuminuria, abnormal physical, chemical, and microscopical changes in comparison with control groups. Conculsion: Remarkably, posttreatment with CeO2NPs showed significant improvement in kidney histopathological picture and relieved the alterations in kidney biomarkers, inflammatory markers, urine abnormalities, and expressions of different genes as Nrf-2 and NBN.
Background: Cadmium (Cd) is a highly toxic heavy metal that adversely affects both human and animal health. Chronic cadmium exposure causes serious kidney damage. The current study investigated the protective role of cerium oxide nanoparticles (CeO2NPs) against cadmium chloride (CdCl2)-induced renal injury. Method: One hundred and twenty male albino rats were divided into 6 equal groups. Group (C): considered as control group which was given distilled water orally. Group (NC.1 and NC.5): rats were injected i.p. with nanoceria at a dose of (0.1 and 0.5 mg/kg b.wt), respectively, twice a week for 2 weeks starting at the 15th day of the study. Group (Cd): rats were received CdCl2 orally (10 mg/kg b.wt) daily for 28 days. Groups (Cd + NC.1 and Cd + NC.5): rats were given CdCl2 orally (10 mg/kg b.wt) for 28 days and CeO2NPs by i.p. injection at a dose of (0.1 and 0.5 mg/kg b.wt), respectively, twice a week for 2 weeks started at the 15th day of the experiment. Results: The Cd group exhibited a significant increase in the serum levels of IL-1β, KIM-1, Cys-C, and β2-MG, downregulation of the antioxidant initiator genes such as Nrf-2, and up-regulation of apoptosis markers such as nibrin gene (NBN). Urine examination showed a high level of microalbuminuria, abnormal physical, chemical, and microscopical changes in comparison with control groups. Conculsion: Remarkably, posttreatment with CeO2NPs showed significant improvement in kidney histopathological picture and relieved the alterations in kidney biomarkers, inflammatory markers, urine abnormalities, and expressions of different genes as Nrf-2 and NBN.
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