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Protective effect of quercetin against gentamicin-induced nephrotoxicity in rats.
Biol Pharm Bull. 2009 Jan; 32(1):61-7.BP

Abstract

Gentamicin (GM) is an antibiotic widely used in treating severe gram-negative infections. However, its clinical use is limited by its nephrotoxicity. Several lines of evidence indicate that free radicals are important mediators of gentamicin nephrotoxicity. Therefore, the aim of this work was to investigate the possible protective effect of the flavonoid quercetin, an antioxidant, on gentamicin-induced nephrotoxicity. For this purpose, rats were divided into four groups. First group served as a control and injected with the normal saline, second group was injected with quercetin (50 mg/kg/d, per os) for 7 d, third group was injected with gentamicin (80 mg/kg/d, intraperitoneally) for 7 d and the fourth group of animals was injected with quercetin plus gentamicin simultaneously for 7 d. Total protein levels were estimated in 24-h urine samples to assess kidney dysfunction. The rats were sacrificed on the seventh day and kidneys were collected for histopathological studies. Blood urea nitrogen (BUN) and creatinine levels were measured in the blood. Moreover, glutathione (GSH), lipid peroxide (TBARS) levels, superoxide dismutase (SOD) and catalase (CAT) activities were determined in renal tissues. GM-treated rats showed early kidney dysfunction as urinary total protein, BUN and serum creatinine levels were significantly increased. The significant decrease in GSH levels, SOD, CAT activities and increase in TBARS levels, indicated that GM-induced nephrotoxicity was mediated through oxidative stress reactions. Histopathological examination of GM-treated rats revealed degenerative changes in glomeruli and tubules. On the other hand, simultaneous administration of quercetin plus gentamicin protected kidney tissues against nephrotoxic effects of gentamicin as evidenced from amelioration of histopathological changes and normalization of kidney biochemical parameters.

Authors+Show Affiliations

Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt. Ihabpharma@yahoo.comNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19122282

Citation

Abdel-Raheem, Ihab Talat, et al. "Protective Effect of Quercetin Against Gentamicin-induced Nephrotoxicity in Rats." Biological & Pharmaceutical Bulletin, vol. 32, no. 1, 2009, pp. 61-7.
Abdel-Raheem IT, Abdel-Ghany AA, Mohamed GA. Protective effect of quercetin against gentamicin-induced nephrotoxicity in rats. Biol Pharm Bull. 2009;32(1):61-7.
Abdel-Raheem, I. T., Abdel-Ghany, A. A., & Mohamed, G. A. (2009). Protective effect of quercetin against gentamicin-induced nephrotoxicity in rats. Biological & Pharmaceutical Bulletin, 32(1), 61-7.
Abdel-Raheem IT, Abdel-Ghany AA, Mohamed GA. Protective Effect of Quercetin Against Gentamicin-induced Nephrotoxicity in Rats. Biol Pharm Bull. 2009;32(1):61-7. PubMed PMID: 19122282.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Protective effect of quercetin against gentamicin-induced nephrotoxicity in rats. AU - Abdel-Raheem,Ihab Talat, AU - Abdel-Ghany,Ahmed Ali, AU - Mohamed,Gamal Abdallah, PY - 2009/1/6/entrez PY - 2009/1/6/pubmed PY - 2009/4/16/medline SP - 61 EP - 7 JF - Biological & pharmaceutical bulletin JO - Biol Pharm Bull VL - 32 IS - 1 N2 - Gentamicin (GM) is an antibiotic widely used in treating severe gram-negative infections. However, its clinical use is limited by its nephrotoxicity. Several lines of evidence indicate that free radicals are important mediators of gentamicin nephrotoxicity. Therefore, the aim of this work was to investigate the possible protective effect of the flavonoid quercetin, an antioxidant, on gentamicin-induced nephrotoxicity. For this purpose, rats were divided into four groups. First group served as a control and injected with the normal saline, second group was injected with quercetin (50 mg/kg/d, per os) for 7 d, third group was injected with gentamicin (80 mg/kg/d, intraperitoneally) for 7 d and the fourth group of animals was injected with quercetin plus gentamicin simultaneously for 7 d. Total protein levels were estimated in 24-h urine samples to assess kidney dysfunction. The rats were sacrificed on the seventh day and kidneys were collected for histopathological studies. Blood urea nitrogen (BUN) and creatinine levels were measured in the blood. Moreover, glutathione (GSH), lipid peroxide (TBARS) levels, superoxide dismutase (SOD) and catalase (CAT) activities were determined in renal tissues. GM-treated rats showed early kidney dysfunction as urinary total protein, BUN and serum creatinine levels were significantly increased. The significant decrease in GSH levels, SOD, CAT activities and increase in TBARS levels, indicated that GM-induced nephrotoxicity was mediated through oxidative stress reactions. Histopathological examination of GM-treated rats revealed degenerative changes in glomeruli and tubules. On the other hand, simultaneous administration of quercetin plus gentamicin protected kidney tissues against nephrotoxic effects of gentamicin as evidenced from amelioration of histopathological changes and normalization of kidney biochemical parameters. SN - 0918-6158 UR - https://www.unboundmedicine.com/medline/citation/19122282/Protective_effect_of_quercetin_against_gentamicin_induced_nephrotoxicity_in_rats_ L2 - http://joi.jlc.jst.go.jp/JST.JSTAGE/bpb/32.61?from=PubMed DB - PRIME DP - Unbound Medicine ER -