Opiate effects on rabbit vagus nerve

Electrophysiology and radioligand binding

Sarah A. Shefner, R. Alan North, R. Suzanne Zukin

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Intracellular recordings were made from rabbit nodose ganglion cells in vitro. Morphine (up to 100 μM), normorphine (up to 10 μM) and d-Ala2, Leu5-enkephalin (DADLE) (up to 5 μM) each had no detectable effect on the electrical properties of the cell membrane, except for local anesthetic-like actions at the highest concentrations which were not reversed by naloxone. Extracellular recordings were made from the infranodose vagus nerve in vitro using a sucrose gap method. No effects of morphine, normorphine or DADLE were detected on the resting potential, compound action potential or compound action potential enhanced by barium or tetraethylammonium. Moderate levels of stereospecific binding of tritiated dihydromorphine and DADLE were detected in both the nodose ganglion and vagus nerve. It is surmised that the radioligand binding sites on the nodose ganglion and vagus nerve are not functionally linked to detectable electrophysiological effects.

Original languageEnglish (US)
Pages (from-to)109-116
Number of pages8
JournalBrain Research
Volume221
Issue number1
DOIs
StatePublished - Sep 21 1981

Fingerprint

Opiate Alkaloids
Leucine-2-Alanine Enkephalin
Nodose Ganglion
Vagus Nerve
Electrophysiology
Rabbits
Morphine
Action Potentials
Dihydromorphine
Tetraethylammonium
Enkephalins
Barium
Naloxone
Local Anesthetics
Membrane Potentials
Sucrose
Binding Sites
Cell Membrane
In Vitro Techniques
normorphine

Keywords

  • electrophysiology
  • nodose ganglion
  • opiates

ASJC Scopus subject areas

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

Cite this

Opiate effects on rabbit vagus nerve : Electrophysiology and radioligand binding. / Shefner, Sarah A.; North, R. Alan; Zukin, R. Suzanne.

In: Brain Research, Vol. 221, No. 1, 21.09.1981, p. 109-116.

Research output: Contribution to journalArticle

Shefner, Sarah A. ; North, R. Alan ; Zukin, R. Suzanne. / Opiate effects on rabbit vagus nerve : Electrophysiology and radioligand binding. In: Brain Research. 1981 ; Vol. 221, No. 1. pp. 109-116.
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