Sevoflurane postconditioning ameliorates oxygen-glucose deprivation-reperfusion injury in the rat hippocampus

CNS Neurosci Ther. 2011 Dec;17(6):605-11. doi: 10.1111/j.1755-5949.2010.00193.x. Epub 2010 Sep 28.

Abstract

Introduction: Sevoflurane is well known to exert a neuroprotective effect through anesthetic preconditioning. However, its effects on postconditioning, a neuroprotective phenomenon following an insult, have not been well studied.

Aims: In this study, we examined the ability of sevoflurane to induce postconditioning in rat hippocampal slices, in vitro.

Results: 2%, 4%, and 6% sevoflurane reduced neurophysiologic and morphologic neuronal injury following oxygen-glucose deprivation (OGD) and reperfusion. The quantity of damaged neurons was significantly reduced on immunofluorescence staining; excitatory amino acids (Asp, Glu) increased and inhibitory amino acids (GABA) decreased significantly. The effect was concentration-dependent.

Conclusion: Postconditioning with sevoflurane reduces neuronal damage after OGD-reperfusion injury in the CA1 area of rat hippocampus, in vitro.

MeSH terms

  • Amino Acids / cerebrospinal fluid
  • Amino Acids / metabolism
  • Anesthetics, Inhalation / pharmacology*
  • Animals
  • Coloring Agents
  • Electrophysiological Phenomena
  • Evoked Potentials / physiology
  • Fluorescent Antibody Technique
  • Glucose / deficiency*
  • Hippocampus / drug effects
  • Hippocampus / pathology*
  • Hypoxia, Brain / drug therapy*
  • Hypoxia, Brain / pathology
  • Male
  • Methyl Ethers / pharmacology*
  • Microscopy, Electron
  • Microscopy, Fluorescence
  • Neurons / pathology
  • Neuroprotective Agents*
  • Neurotransmitter Agents / cerebrospinal fluid
  • Neurotransmitter Agents / metabolism
  • Propidium
  • Rats
  • Rats, Sprague-Dawley
  • Reperfusion Injury / drug therapy*
  • Reperfusion Injury / pathology
  • Sevoflurane

Substances

  • Amino Acids
  • Anesthetics, Inhalation
  • Coloring Agents
  • Methyl Ethers
  • Neuroprotective Agents
  • Neurotransmitter Agents
  • Propidium
  • Sevoflurane
  • Glucose