Ligustrazine attenuates acute lung injury after burn trauma

Burns. 2005 Jun;31(4):453-8. doi: 10.1016/j.burns.2004.10.023. Epub 2005 Mar 5.

Abstract

Acute lung injury is a common complication in patients with extensive burns in which the burned area exceeds 30% of the total body surface area (TBSA). This study was undertaken to evaluate the effect of Ligustrazine on burn-induced lung injury as well as the release of interleukin-8 (IL-8) in rats to characterize the role of Ligustrazine and IL-8 in lung injury after burn trauma. Sprague-dawley rats were divided into three groups: (1) sham group, rats who underwent sham burn; (2) control group, rats given third-degree burns over 30% TBSA and lactated Ringer solution for resuscitation; and (3) Ligustrazine group, rats given burn injury and lactated Ringer's solution with Ligustrazine inside for resuscitation. Pulmonary injury was assessed at 24 h by pulmonary capillary permeability determined with fluorescein isothiocyanate-labeled albumin and lung histologic analysis, and lung myeloperoxidase (MPO) activity as well as lung wet/dry weight ratio. The IL-8 levels were measured in serum by enzyme-linked immunosorbent assay. These studies showed that burn trauma results in increased pulmonary leakage permeability and lung wet/dry ratio, elevated serum IL-8 levels and MPO activity, and worsened histologic condition. Ligustrazine inhibited these changes, prevented burn-mediated lung injury, and the production of IL-8. This will likely provide further evidence for ligustrazine as a therapeutic strategy in burn-induced lung injury.

MeSH terms

  • Acute Disease
  • Animals
  • Anti-Inflammatory Agents, Non-Steroidal / therapeutic use*
  • Burns / blood
  • Burns / complications*
  • Burns / drug therapy
  • Capillary Permeability
  • Interleukin-8 / blood
  • Lung / enzymology
  • Lung / immunology
  • Lung / physiopathology
  • Male
  • Models, Animal
  • Peroxidase / metabolism
  • Pyrazines / therapeutic use*
  • Random Allocation
  • Rats
  • Rats, Wistar
  • Respiratory Distress Syndrome / blood
  • Respiratory Distress Syndrome / drug therapy*
  • Respiratory Distress Syndrome / etiology

Substances

  • Anti-Inflammatory Agents, Non-Steroidal
  • Interleukin-8
  • Pyrazines
  • Peroxidase
  • tetramethylpyrazine