Toxic ricin demonstration a dual dentral projection

Lonnie R. Johnson, Lesnick E. Westrum, Michael A. Henry, Robert C. Canfield

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Toxic ricin was used to study the central distribution of dental afferents in the cat. Following intrapulpal ricin injections ganglion cell degeneration is seen in the II and III ganglion divisions. Central argyrophilic degeneration occurs in the dorsal portion of all ipsilateral trigeminal nuclei. Ventral degeneration is seen in the pars interpolaris and pars caudalis. No contralateral degeneration was observed. The results are discussed with regard to previous studies of the central location of dental afferents.

Original languageEnglish (US)
Pages (from-to)379-383
Number of pages5
JournalBrain Research
Issue number2
StatePublished - Oct 21 1985
Externally publishedYes


  • dental afferent
  • ricin
  • transganglionic degeneration
  • trigeminal

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology


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