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Medical Science Monitor Basic Research


eISSN: 1643-3750

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Quercetin Treatment Improves Renal Function and Protects the Kidney in a Rat Model of Adenine-Induced Chronic Kidney Disease

Hu Yang, Yan Song, Ya-nan Liang, Rong Li

(Department of Nephrology, The Second Hospital of Tianjin Medical University, Tianjin, China (mainland))

Med Sci Monit 2018; 24: ANS4760-4766

DOI: 10.12659/MSM.909259

BACKGROUND: The aim of this study was to examine the effects of the natural flavonoid, quercetin, in a rat model of adenine-induced chronic kidney disease.
MATERIAL AND METHODS: Forty male Wister rats were divided into four groups: normal (no adenine or quercetin) (n=10); untreated model (treated withadenine but not quercetin) (n=10); quercetin-treated model (5 mg/kg/day for 21 days) (n=10); quercetin-treated model (10 mg/kg/day for 21 days) (n=10). Urine and blood samples were collected and rat kidneys were examined histologically.
RESULTS: Comparison of the findings of the model rats treated with quercetin (n=20) with non-treated model rats (n=10) showed reduced levels of fibroblast growth factor 23 (FGF23): normal group, 19.6 pg/ml; untreated group, 73.6 pg/ml; quercetin-treated group (5 mg/kg), 34.25 pg/ml; and quercetin-treated group (10 mg/kg), 21.3 pg/ml. Quercetin-treated model rats had reduced serum levels of parathyroid hormone (PTH), inorganic phosphate, increased urine protein-to-creatinine ratio, increased urine antioxidants, serum lactate dehydrogenase (LDH), and interleukin (IL)-8 when compared with the untreated model group and the control group. Quercetin treatment 10 mg/kg (n=10) reduced the levels of creatinine, blood urea nitrogen (BUN), and urinary uric acid. Renal histopathology in model rats treated with quercetin (n=20) showed reduced inflammation compared with the untreated model rats (n=10).
CONCLUSIONS: In a rat model of adenine-induced chronic kidney disease, treatment with quercetin improved renal function, reduced oxidative stress factors, serum levels of FGF23, and kidney inflammation.

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