Increased F1/GAP-43 mRNA accumulation in gerbil hippocampus after brain ischemia

Masafumi Tagaya, Tomohiro Matsuyama, Hitoshi Nakamura, Ryuji Hata, Souichiro Shimizu, Hiroshi Kiyama, Masayasu Matsumoto, Minoru Sugita

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Abstract

To assess whether ischemia could induce GAP-43 mRNA expression, we performed in situ hybridization in gerbil brains that had been subjected to 5 min of global ischemia. In control dentate granule cells, little hybridization was detected in contrast to the intense signal generated by pyramidal neurons of the adult hippocampal formation. After ischemia, we detected a robust GAP-43 signal over hippocampal granule cells at 3 h of reperfusion, persisting through 7 days, and disappearing by 14 days. This demonstrated GAP-43 gene induction after ischemia, and suggests that GAP-43 may be involved in reactive events, including fiber sprouting and synaptic reorganization, that follow ischemia.

Original languageEnglish
Pages (from-to)1132-1136
Number of pages5
JournalJournal of Cerebral Blood Flow and Metabolism
Volume15
Issue number6
DOIs
Publication statusPublished - 01-01-1995

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All Science Journal Classification (ASJC) codes

  • Neurology
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine

Cite this

Tagaya, M., Matsuyama, T., Nakamura, H., Hata, R., Shimizu, S., Kiyama, H., Matsumoto, M., & Sugita, M. (1995). Increased F1/GAP-43 mRNA accumulation in gerbil hippocampus after brain ischemia. Journal of Cerebral Blood Flow and Metabolism, 15(6), 1132-1136. https://doi.org/10.1038/jcbfm.1995.140