Platonin mitigates acute lung injury in haemorrhagic shock rats

Hsi Ning Chu, Pei Shan Tsai, Tao Yeuan Wang, Chun Jen Huang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Aim of the study: Enhanced oxidative stress and inflammatory response are crucial in mediating the development of acute lung injury induced by haemorrhagic shock with resuscitation. Platonin, a potent antioxidant, possesses potent anti-inflammation capacity. We sought to elucidate whether platonin could mitigate acute lung injury in haemorrhagic shock/resuscitation rats. Methods: Seventy-two adult male rats were randomized to receive haemorrhagic shock/resuscitation (HS), HS plus platonin (10, 50, or 100 μg/kg intravenous injection immediately after resuscitation), sham instrumentation (Sham), or Sham plus platonin (100 μg/kg) (n=12 in each group). Haemorrhagic shock was induced by blood drawing and mean blood pressure was maintained at 40-45. mmHg for 120. min. Then, resuscitation was achieved by shed blood/saline mixtures re-infusion. After monitoring for another 8. h, rats were sacrificed. Results: Arterial blood gas and histological findings, in concert with assays of leukocyte infiltration (polymorphonuclear leukocytes/alveoli ratio and myeloperoxidase activity) and lung water content (wet/dry weight ratio), confirmed that haemorrhagic shock/resuscitation caused significant lung injury. Significant increases in concentrations of inflammatory molecules (chemokine, cytokine, and prostaglandin E2) as well as nitric oxide and malondialdehyde in lung tissues confirmed that haemorrhagic shock/resuscitation elicited inflammatory response and imposed oxidative stress in rats. Platonin at the dosages of 50 and 100μg/kg, but not 10μg/kg, significantly attenuated the inflammatory response and oxidative stress induced by haemorrhagic shock/resuscitation. Most important, platonin at the dosages of 50 and 100μg/kg, but not 10μg/kg, significantly mitigated the lung injury induced by haemorrhagic shock/resuscitation. Conclusions: Platonin mitigates acute lung injury in haemorrhagic shock/resuscitation rats.

Original languageEnglish
Pages (from-to)97-104
Number of pages8
JournalResuscitation
Volume82
Issue number1
DOIs
Publication statusPublished - Jan 2011

Fingerprint

Hemorrhagic Shock
Acute Lung Injury
Resuscitation
Oxidative Stress
Lung Injury
platonin
Lung
Malondialdehyde
Chemokines
Dinoprostone
Intravenous Injections
Peroxidase
Nitric Oxide
Neutrophils
Leukocytes
Antioxidants
Gases
Cytokines
Blood Pressure
Inflammation

Keywords

  • Chemokine
  • Cyclooxygenase-2
  • Cytokine
  • Nitric oxide
  • Resuscitation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Emergency
  • Emergency Medicine

Cite this

Platonin mitigates acute lung injury in haemorrhagic shock rats. / Chu, Hsi Ning; Tsai, Pei Shan; Wang, Tao Yeuan; Huang, Chun Jen.

In: Resuscitation, Vol. 82, No. 1, 01.2011, p. 97-104.

Research output: Contribution to journalArticle

Chu, Hsi Ning ; Tsai, Pei Shan ; Wang, Tao Yeuan ; Huang, Chun Jen. / Platonin mitigates acute lung injury in haemorrhagic shock rats. In: Resuscitation. 2011 ; Vol. 82, No. 1. pp. 97-104.
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