Schisandrin B Prevents Hind Limb from Ischemia-Reperfusion-Induced Oxidative Stress and Inflammation via MAPK/NF- κ B Pathways in Rats

Biomed Res Int. 2017:2017:4237973. doi: 10.1155/2017/4237973. Epub 2017 Jun 19.

Abstract

Schisandrin B (ScB), isolated from Schisandra chinensis (S. chinensis), is a traditional Chinese medicine with proven cardioprotective and neuroprotective effects. However, it is unclear whether ScB also has beneficial effects on rat hind limb ischemia/reperfusion (I/R) injury model. In this study, ScB (20 mg/kg, 40 mg/kg, and 80 mg/kg) was administered via oral gavage once daily for 5 days before the surgery. After 6 h ischemia and 24 h reperfusion of left hind limb, ScB reduced I/R induced histological changes and edema. ScB also suppressed the oxidative stress through decreasing MDA level and increasing SOD activity. Moreover, above changes were associated with downregulated TNF-α mRNA expression and reduced level of IL-1β in plasma. Meanwhile, ScB treatment downregulated activation of p38MAPK, ERK1/2, and NF-κB in ischemic skeletal muscle. These results demonstrate that ScB treatment could prevent hind limb I/R skeletal muscle injury possibly by attenuating oxidative stress and inflammation via p38MAPK, ERK1/2, and NF-κB pathways.

MeSH terms

  • Animals
  • Antioxidants / administration & dosage*
  • Antioxidants / chemistry
  • Cyclooctanes / administration & dosage
  • Gene Expression Regulation / drug effects
  • Hindlimb / drug effects
  • Hindlimb / physiopathology
  • Humans
  • Inflammation / drug therapy*
  • Inflammation / genetics
  • Inflammation / physiopathology
  • Interleukin-1beta / genetics
  • Lignans / administration & dosage*
  • NF-kappa B / genetics
  • Oxidative Stress / drug effects*
  • Polycyclic Compounds / administration & dosage*
  • Rats
  • Reperfusion Injury / drug therapy*
  • Reperfusion Injury / genetics
  • Reperfusion Injury / physiopathology
  • Schisandra / chemistry
  • Transcription Factor RelA / genetics
  • Tumor Necrosis Factor-alpha / genetics
  • p38 Mitogen-Activated Protein Kinases / genetics

Substances

  • Antioxidants
  • Cyclooctanes
  • Interleukin-1beta
  • Lignans
  • NF-kappa B
  • Polycyclic Compounds
  • RELA protein, human
  • Transcription Factor RelA
  • Tumor Necrosis Factor-alpha
  • schizandrin B
  • p38 Mitogen-Activated Protein Kinases