Acupuncture inhibits kainic Acid-induced hippocampal cell death in mice

J Physiol Sci. 2008 Feb;58(1):31-8. doi: 10.2170/physiolsci.RP010907. Epub 2008 Jan 12.

Abstract

We examined whether acupuncture can reduce both the incidence of seizures and hippocampal cell death using a mouse model of kainic acid (KA)-induced epilepsy. ICR mice were given acupuncture once a day at acupoint HT8 (sobu) bilaterally during 2 days before KA injection. After an intracerebroventricular injection of 0.1 microg of KA, acupuncture treatment was subsequently administered once more (total 3 times), and the degree of seizure was observed for 20 min. Three hours after injection, the survival of neuronal cells and the expressions of c-Fos, c-Jun, and glutamate decarboxylase (GAD)-67 in the CA1 and CA3 were determined using immunohistochemistry and Western blotting techniques. Acupuncture reduced the severity of the KA-induced epileptic seizure and the rate of neural cell death, and it also decreased the expressions of c-Fos and c-Jun induced by KA in the hippocampus. Furthermore, acupuncture increased GAD-67 expressions in the same areas. These results demonstrated that it could inhibit the KA-induced epileptic seizure and hippocampal cell death by increasing GAD-67 expressions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acupuncture*
  • Animals
  • Cell Death / physiology*
  • Enzyme Activation
  • Epilepsy / chemically induced
  • Epilepsy / pathology*
  • Epilepsy / therapy*
  • Excitatory Amino Acid Agonists / toxicity
  • Glutamate Decarboxylase / metabolism
  • Hippocampus / pathology*
  • JNK Mitogen-Activated Protein Kinases / metabolism
  • Kainic Acid / toxicity
  • Male
  • Mice
  • Mice, Inbred ICR
  • Neurons / metabolism
  • Neurons / pathology
  • Neurotoxins / metabolism
  • Proto-Oncogene Proteins c-fos / metabolism

Substances

  • Excitatory Amino Acid Agonists
  • Neurotoxins
  • Proto-Oncogene Proteins c-fos
  • JNK Mitogen-Activated Protein Kinases
  • Glutamate Decarboxylase
  • glutamate decarboxylase 1
  • Kainic Acid