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The protective effects of sildenafil in acute lung injury in a rat model of severe scald burn: A biochemical and histopathological study

Date

2013

Author

Gokakin, Ali Kagan
Deveci, Koksal
Kurt, Atilla
Karakus, Boran Cihat
Duger, Cevdet
Tuzcu, Mehmet
Topcu, Omer

Metadata

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Abstract

Severe burn induces biochemical mediators such as reactive oxygen species that leads to lipid peroxidation which may have a key role in formation of acute lung injury (ALI). Sildenafil is a selective and potent inhibitor of cyclic guanosine monophosphate specific phosphodiesterase-5. Sildenafil preserves alveolar growth, angiogenesis, reduces inflammation and airway reactivity. The purpose of the present study was to evaluate the effects of different dosages of sildenafil in ALI due to severe scald burn in rats. Twenty-four rats were subjected to 30% total body surface area severe scald injury and were randomly divided into three equal groups as follow: control, 10 and 20 mg/kg sildenafil groups. Levels of malondialdehyde (MDA), activities of glutathione peroxidase (Gpx), catalase (Cat), total oxidative stress (TOS), and total antioxidative capacity (TAG) were measured in both tissues and serums. Oxidative stress index (OSI) was calculated. A semi-quantitative scoring system was used for the evaluation of histopatological findings. Sildenafil increased Gpx, Cat, TAG and decreased MDA, TOS and OSI. Sildenafil decreased inflammation scores in lungs. Our results reveal that sildenafil is protective against scald burn related ALI by decreasing oxidative stress and inflammation and the dosage of 10 mg/kg could be apparently better than 20 mg/kg. (C) 2013 Elsevier Ltd and ISBI. All rights reserved.

Source

BURNS

Volume

39

Issue

6

URI

https://dx.doi.org/10.1016/j.burns.2012.12.017
https://hdl.handle.net/20.500.12418/8600

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  • Makale Koleksiyonu [5200]
  • Makale Koleksiyonu [5745]
  • Öksüz Yayınlar Koleksiyonu - WoS [6162]



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