Ascorbic acid reduces gentamicin-induced nephrotoxicity in rats through the control of reactive oxygen species

Ascorbic acid reduces gentamicin-induced nephrotoxicity in rats through the control of reactive oxygen species

Author Moreira, Miriam A. Google Scholar
Nascimento, Marcos A. Google Scholar
Bozzo, Tatiana A. Google Scholar
Cintra, Alvaro Autor UNIFESP Google Scholar
Silva, Sonia M. da Autor UNIFESP Google Scholar
Dalboni, Maria Aparecida Autor UNIFESP Google Scholar
Mouro, Margaret G. Google Scholar
Higa, Elisa M. S. Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Background & aim: Oxidative stress has been implicated in the pathophysiology of many forms of acute renal failure. the aim was examine the effect of vitamin C on oxidative stress and its relationship with nitric oxide on gentamicin-induced nephrotoxicity in rats.Methods: We utilized 32 Wistar rats allocated in four groups of eight animals each: control (CTL), vitamin C (VIT C), gentamicin (GENTA), and GENTA + VIT C; all groups were treated during seven days.Results: Serum urea and creatinine, serum and renal tissue malondialdehyde, blood superoxide anion and hydrogen peroxide in GENTA were increased vs CTL and vs VIT C, and decreased in GENTA + VIT C vs GENTA (all P < 0.05). Serum nitric oxide increased in GENTA vs CTL and vs VIT C, and reduced in GENTA + VII C vs GENTA (P < 0.001). Urinary nitric oxide was reduced in GENTA vs CTL and vs VIT C and increased in GENTA + VIT C vs GENTA (P < 0.001). Severe degeneration of proximal tubules was present in GENTA, but only mild lesions were observed in GENTA + VIT C.Conclusion: This study suggests that VIT C is a valuable tool to protect against GENTA-induced nephrotoxicity, by reducing reactive oxygen species and increasing the nitric oxide. (C) 2013 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
Keywords Vitamin C
Gentamicin
Acute renal failure
Oxidative stress
Nitric oxide
Language English
Sponsor FAP (Fundacao de Apoio a Universidade Federal de São Paulo)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Date 2014-04-01
Published in Clinical Nutrition. Edinburgh: Churchill Livingstone, v. 33, n. 2, p. 296-301, 2014.
ISSN 0261-5614 (Sherpa/Romeo, impact factor)
Publisher Churchill Livingstone
Extent 296-301
Origin http://dx.doi.org/10.1016/j.clnu.2013.05.005
Access rights Closed access
Type Article
Web of Science ID WOS:000334985500018
URI http://repositorio.unifesp.br/handle/11600/37611

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