Qin J, Su X, Jin X, Zhao J. Parecoxib mitigates lung ischemia-reperfusion injury in rats by reducing oxidative stress and inflammation and up-regulating HO-1 expression.
Acta Cir Bras 2021;
36:e360901. [PMID:
34705944 PMCID:
PMC8555996 DOI:
10.1590/acb360901]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/08/2021] [Indexed: 12/20/2022] Open
Abstract
Purpose:
To investigate the protective effect of parecoxib against lung
ischemia-reperfusion injury (LIRI) in rats and the mechanism.
Methods:
Thirty rats were divided into sham-operated, LIRI and LIRI+parecoxib groups.
LIRI model (ischemia for 60 min, followed by reperfusion for 120 min) was
constructed in LIRI and LIRI+parecoxib groups. In LIRI+parecoxib group, 10
mg/kg parecoxib was given via femoral vein 15 min before ischemia beginning.
At the end of the reperfusion, blood gas analysis, lung wet to dry mass
ratio measurement, lung tissue biochemical determination and heme
oxygenase-1 (HO-1) protein expression determination were performed.
Results:
Compared with LIRI group, in LIRI+parecoxib group the oxygenation index was
significantly increased, the alveolar-arterial oxygen partial pressure
difference was significantly decreased, the lung wet to dry mass ratio was
significantly decreased, the lung tissue malondialdehyde content was
significantly decreased, the lung tissue superoxide dismutase and
myeloperoxidase activities were significantly increased, the lung tissue
tumor necrosis factor α and interleukin 1β levels were significantly
decreased, and the lung tissue HO-1 protein expression level was
significantly increased (all P < 0.05).
Conclusions:
Parecoxib pretreatment can mitigate the LIRI in rats by reducing oxidative
stress, inhibiting inflammatory response and up-regulating HO-1 expression
in lung tissue.
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