Anti-inflammatory effects of eugenol on lipopolysaccharide-induced inflammatory reaction in acute lung injury via regulating inflammation and redox status

Int Immunopharmacol. 2015 May;26(1):265-71. doi: 10.1016/j.intimp.2015.03.026. Epub 2015 Apr 8.

Abstract

Acute lung injury (ALI) represents a clinical syndrome that results from complex responses of the lung to a multitude of direct and indirect insults. This study aims to evaluate the possible mechanisms responsible for the anti-inflammatory effects of eugenol (EUL) on lipopolysaccharide (LPS)-induced inflammatory reaction in ALI. ALI was induced in mice by intratracheal instillation of LPS (0.5 mg/kg), and EUL (5, and 10 mg/kg) was injected intraperitoneally 1h prior to LPS administration. After 6h, bronchoalveolar lavage fluid (BALF) and lung tissue were collected. The findings suggest that the protective mechanism of EUL may be attributed partly to decreased production of proinflammatory cytokines through the regulating inflammation and redox status. The results support that use of EUL is beneficial in the treatment of ALI.

Keywords: Eugenol; Inflammation; Lung injury; Redox status.

MeSH terms

  • Acute Lung Injury / drug therapy*
  • Acute Lung Injury / immunology
  • Acute Lung Injury / metabolism
  • Animals
  • Anti-Inflammatory Agents / administration & dosage
  • Anti-Inflammatory Agents / therapeutic use*
  • Antioxidants / metabolism
  • Bronchoalveolar Lavage Fluid / chemistry
  • Bronchoalveolar Lavage Fluid / cytology
  • Disease Models, Animal
  • Eugenol / administration & dosage
  • Eugenol / therapeutic use*
  • Female
  • Lipopolysaccharides / pharmacology*
  • Lung / drug effects
  • Lung / immunology
  • Lung / pathology
  • Mice, Inbred BALB C
  • Oxidation-Reduction
  • Oxidative Stress / drug effects*

Substances

  • Anti-Inflammatory Agents
  • Antioxidants
  • Lipopolysaccharides
  • Eugenol