Asymmetric Fos labeling in lobule X of the cerebellum following transtympanic tetrodotoxin (TTX) in the rat

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Unilateral transtympanic administration of the sodium channel blocker tetrodotoxin (75 μl of 3 mM TTX in 0.1 M citrate buffer, pH 5.0) produced behavioral symptoms indicative of unilateral vestibular disruption. Following survival times of 2 and 24 h immunocytochemistry for Fos revealed asymmetric labeling in the granular and molecular layers of lobule X of the cerebellum and in the medial cerebellar nucleus. The granular and molecular layers as well as the medial cerebellar nucleus ipsilateral to TTX treatment contained elevated levels of Fos relative to the same regions contralaterally and when compared to controls receiving equal volume injections of vehicle. The asymmetric changes in neuronal activity as measured by Fos (genetic activity) in lobule X implicate this region of the vestibulocerebellum in recovery from transient vestibular disruption in the intact system.

Original languageEnglish
Pages (from-to)57-61
Number of pages5
JournalNeuroscience Letters
Volume339
Issue number1
DOIs
StatePublished - Mar 13 2003

Fingerprint

Tetrodotoxin
Cerebellum
Cerebellar Nuclei
Sodium Channel Blockers
Behavioral Symptoms
Citric Acid
Buffers
Immunohistochemistry
Injections
Therapeutics

Keywords

  • c-Fos
  • Inferior olive
  • Inner ear
  • Labyrinthectomy
  • Tetrodotoxin
  • Vestibular

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Asymmetric Fos labeling in lobule X of the cerebellum following transtympanic tetrodotoxin (TTX) in the rat. / Saxon, Dale.

In: Neuroscience Letters, Vol. 339, No. 1, 13.03.2003, p. 57-61.

Research output: Contribution to journalArticle

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