Effects of substance P on sympathetic preganglionic neurones

Michael P. Gilbey*, Kevin E. McKenna, Lawrence P. Schramm

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

Antidromically identified sympathetic preganglionic neurones, located in the second thoracic segment of the rat spinal cord, were tested for their response to iontophoretically applied substance P. Substance P increased the firing rate of both 'spontaneously' active and glutamate-activated neurones. As substance P-like immunoreactivity is present in the intermediolateral cell column of the thoracic spinal cord, it is concluded that substance P may be an excitatory transmitter or modulator involved in mediating excitatory drive to sympathetic preganglionic neurones.

Original languageEnglish (US)
Pages (from-to)157-159
Number of pages3
JournalNeuroscience Letters
Volume41
Issue number1-2
DOIs
StatePublished - Oct 31 1983

Keywords

  • cardiovascular regulation
  • rats
  • substance P
  • sympathetic preganglionic neurones
  • ventral medulla

ASJC Scopus subject areas

  • Neuroscience(all)

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