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  • Meeting abstract
  • Open Access

EHMTI-0095. Spreading depression enhances neurogenesis in hippocampus and dentate gyrus

  • 1
The Journal of Headache and Pain201415(Suppl 1):F15

https://doi.org/10.1186/1129-2377-15-S1-F15

Published: 18 September 2014

Keywords

  • Divided Cell
  • Cell Layer
  • Neuronal Activity
  • Dentate Gyrus
  • Pyramidal Cell

Introduction

Spreading depression (SD) known by transient loss of spontaneous and evoked neuronal activity and changes in ionic, metabolic and hemodynamic characteristics of the brain. Neuronal damage followed by SD, supposed to have a dramatic impression on SD-derived pathologic conditions. We aimed to determine whether SD is able to stimulate persistent neurogenesis.

Methods

Wistar rat (60-80gr) randomly chosen and 3 mol/L KCl injected for induction of SD. Four weeks after the first injection, all rats were decapitated and the brains removed. The density of mitotic cells, divided cells, and new neurons in the pyramidal cell layer of hippocampal CA1 and CA3 and granular cell layer of dentate gyrus was assessed. We also detect the DNA during the S phase using Bromodeoxyuridine (BrdU).

Results

A remarkable increase occurred in the number of BrdU-labeled cells in hippocampal region, detected by immunohistochemistry method. The density of mitotic cells, divided cells, and new neurons in hippocampal CA1 and CA3 and granular cell layer of dentate gyrus also increased.

Conclusion

We conclude that Spreading depression potentiates to trigger persistent neurogenesis in rat hippocampus.

No conflict of interest.

Authors’ Affiliations

(1)
Neuroscience, Shefa Neuroscience Research Center, Tehran, Iran

Copyright

© Lotfinia; licensee Springer. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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