Endobronchial perfluorocarbon administration decreases lung injury in an experimental model of ischemia and reperfusion.
J Surg Res
; 183(2): 835-40, 2013 Aug.
Article
em En
| MEDLINE
| ID: mdl-23434305
OBJECTIVE: To verify the effects of liquid endobronchial perfluorocarbon (PFC) administered before reperfusion in an animal model of lung ischemia-reperfusion injury. METHODS: Eighteen Wistar rats were subjected to an experimental model of selective left pulmonary artery clamping for 45 min followed by reperfusion for 2 h. The animals were divided into three groups: the ischemia-reperfusion (IR) group, the sham group, and the PFC group. We recorded the hemodynamic parameters, blood gas analysis, and histology. A Western blot assay was used to measure the inducible nitric oxide synthase, caspase 3, and nuclear factor ÒB (subunit p65) activities. Lipid peroxidation was assessed by the thiobarbituric acid reactive substances assay and the activity of the antioxidant enzyme superoxide dismutase. RESULTS: No significant differences were observed in lipid peroxidation among the groups. The superoxide dismutase activity was increased (P < 0.05) in the PFC-treated group. The expressions of nuclear factor ÒB, inducible nitric oxide synthase, and caspase 3 were significantly lower in the PFC group than in the IR group (P < 0.05). The histologic analysis showed a reduction in lung injuries in the PFC group compared with the sham and IR groups. CONCLUSION: The use of endobronchial PFC reduces the inflammatory response, preserves the alveolar structure, and protects the lungs against the hazardous effects of ischemia-reperfusion injuries.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Traumatismo por Reperfusão
/
Modelos Animais de Doenças
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Fluorocarbonos
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Pulmão
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
J Surg Res
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos