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Published on: December 22, 2023
Curcumin Improves Biomolecules Associated with Renal Function and Attenuates Oxidative Injury and Histopathological
Seun F Akomolafe1, Tosin A Olasehinde2,3, Omowumi O Adewale4
1Department of Biochemistry, Faculty of Science, Ekiti State University, Ado Ekiti, Nigeria. seun.akomolafe@eksu.edu.ng.
Abstract:
The protective effect of curcumin on potassium bromate (KBrO3)-induced renal damage was investigated in vivo. Treatment with KBrO3 (20 mg/kg bw) caused a significant increase in arginase and adenosine deaminase (ADA) activities in rats' kidney. However, oral administration of curcumin (20 mg/kg bw) caused a significant reduction in ADA and arginase activities in KBrO3 + CUR group. Furthermore, nitric oxide level was significantly low in KBrO3 group compared with the control. After treatment with curcumin in KBrO3 + CUR group, nitric oxide levels increased significantly (P < 0.05). Determination of some kidney biomarkers revealed elevated levels of creatinine, serum urea, and electrolytes (Na+ and Cl-) in KBrO3-treated rats. Curcumin effectively reduced the levels of these renal function parameters in KBrO3 + CUR groups and were not significantly different from the control. Antioxidant enzyme activities such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) activities as well as glutathione (GSH) levels were significantly low with concomitant higher levels of malondialdehyde (MDA) after treatment with KBrO3. Curcumin caused a significant increase in SOD, CAT, and GPX activities including GSH levels with lower production of MDA in kidney homogenates of rats in KBrO3 + CUR. Curcumin ameliorated corpuscular degeneration in the kidney tissue and exhibited protection against tubular necrosis. These results revealed the protective effect of curcumin against KBrO3-induced renal toxicity by preventing degradation of ADA and arginine, improving antioxidant status and histopathological changes in rats' kidney.
Insights
Curcumin protects against kidney damage caused by potassium bromate (KBrO3) in rats. It improves kidney function, antioxidant status, and reduces harmful histopathological changes, demonstrating its protective effects.
Area of Science:
- Biochemistry
- Toxicology
- Pharmacology
Background:
- Potassium bromate (KBrO3) is a nephrotoxic agent causing significant renal damage.
- Investigating natural compounds for renoprotective effects is crucial for managing kidney toxicity.
Purpose of the Study:
- To evaluate the protective effect of curcumin against KBrO3-induced renal damage in vivo.
- To assess the impact of curcumin on kidney biomarkers, enzyme activities, and oxidative stress markers.
Main Methods:
- Rats were treated with KBrO3 to induce renal damage.
- Curcumin was administered orally to assess its protective effects.
- Kidney function biomarkers, enzyme activities (ADA, arginase), nitric oxide, antioxidant enzymes (SOD, CAT, GPX), and lipid peroxidation (MDA) were measured.
Main Results:
- KBrO3 significantly increased kidney damage markers and altered enzyme activities.
- Curcumin treatment significantly reduced kidney damage markers and normalized enzyme activities.
- Curcumin improved antioxidant status by increasing SOD, CAT, GPX, and GSH levels while decreasing MDA.
- Histopathological examination showed curcumin ameliorated KBrO3-induced kidney tissue damage.
Conclusions:
- Curcumin exhibits significant renoprotective effects against KBrO3-induced nephrotoxicity in rats.
- Curcumin's protective mechanism involves improving antioxidant defense and mitigating histopathological damage.
- Curcumin demonstrates potential as a therapeutic agent for preventing or treating kidney damage.
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