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Isolation and Culture of Primary Retinal Müller Cells from Sprague-Dawley (SD) Rats
Published on: June 17, 2025
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Curcumin ameliorates cadmium-induced nephrotoxicity in Sprague-Dawley rats
Kyeong Seok Kim1, Hyun-Jung Lim2, Jong Seung Lim1
1Division of Toxicology, School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea.
Summary
Curcumin pre-treatment significantly protected against cadmium-induced kidney damage in rats. It reduced key toxicity biomarkers and ameliorated harmful kidney tissue alterations.
Area of Science:
- Toxicology
- Nephrology
- Pharmacology
Background:
- Chronic cadmium exposure targets the kidneys, leading to significant nephrotoxicity.
- Cadmium accumulation in renal tissues poses a serious health risk.
- Understanding protective agents against heavy metal toxicity is crucial.
Purpose of the Study:
- To investigate the protective effects of curcumin against cadmium-induced nephrotoxicity.
- To evaluate curcumin's efficacy in mitigating kidney damage caused by cadmium exposure.
- To assess biochemical and histopathological changes in cadmium-treated rats with and without curcumin.
Main Methods:
- Sprague-Dawley male rats were divided into control, curcumin, cadmium chloride (CdCl2), and curcumin + CdCl2 groups.
- Curcumin (50 mg/kg) was administered orally, with CdCl2 (25 mg/kg) given subsequently.
- Kidney injury biomarkers (BUN, sCr, Kim-1, OPN, TIMP-1, NGAL, netrin-1) and histopathology were assessed.
Main Results:
- Curcumin pre-treatment significantly reduced blood urea nitrogen (BUN) and serum creatinine (sCr) levels in CdCl2-treated rats.
- Histopathological examination revealed amelioration of hydropic swelling and hypertrophy of proximal tubular cells.
- Urinary excretion of kidney injury molecule-1 (Kim-1), osteopontin (OPN), TIMP-1, NGAL, and netrin-1 was significantly decreased by curcumin.
Conclusions:
- Curcumin demonstrates a significant protective effect against cadmium-induced nephrotoxicity.
- Curcumin mitigates cadmium-induced kidney damage at both biochemical and histological levels.
- Curcumin shows promise as a therapeutic agent for cadmium-related kidney injury.
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