Magnolol exhibits anti-inflammatory and neuroprotective effects in a rat model of intracerebral haemorrhage

Brain Behav Immun. 2019 Mar:77:161-167. doi: 10.1016/j.bbi.2018.12.018. Epub 2018 Dec 28.

Abstract

Intracerebral haemorrhage (ICH) induces inflammation, which can cause severe secondary injury. Recent evidence has suggested that magnolol (MG) has a protective effect against ischaemic stroke through the inhibition of inflammation. However, the anti-inflammatory effect of MG in intracerebral haemorrhage (ICH) remains unclear. Here, we report that the protective effect of MG in a rat model of ICH can be achieved by anti-inflammatory processes. We found that MG administration significantly reduced the brain water content, restored the blood-brain barrier (BBB) and subsequently attenuated neurological deficits via decreasing the activation of glial cells, decreasing the infiltration of neutrophils and reducing the production of pro-inflammation factors (IL-1β, TNF-α and MMP-9) in a rat model of ICH. These results suggest that MG reduced inflammatory injury and improved neurological outcomes in ICH model.

Keywords: Blood brain barrier; Glial cells; Inflammation; Intracerebral haemorrhage; Magnolol.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / pharmacology
  • Astrocytes / drug effects
  • Astrocytes / metabolism
  • Biphenyl Compounds / metabolism
  • Biphenyl Compounds / pharmacology*
  • Blood-Brain Barrier / drug effects
  • Blood-Brain Barrier / metabolism
  • Brain / drug effects
  • Brain Edema / drug therapy
  • Brain Ischemia / complications
  • Cerebral Hemorrhage / complications
  • Cerebral Hemorrhage / drug therapy*
  • Cytokines / metabolism
  • Disease Models, Animal
  • Inflammation / complications
  • Lignans / metabolism
  • Lignans / pharmacology*
  • Male
  • Neuroglia / drug effects
  • Neuroglia / metabolism
  • Neuroprotective Agents / pharmacology
  • Rats
  • Rats, Sprague-Dawley
  • Stroke / complications

Substances

  • Anti-Inflammatory Agents
  • Biphenyl Compounds
  • Cytokines
  • Lignans
  • Neuroprotective Agents
  • magnolol