Direct activation of guinea pig vagal afferent neurons by FMRFamide

Min-Goo Lee, Ji Yong Park, Young Keun Park, Bradley J. Undem

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Vagus nerve comprises two distinct kinds of nerves, nodose and jugular ganglionic nerves. We tested pharmacological difference between two vagal nerves in the responsiveness to FMRFamide. The response probability to FMRFamide was significantly higher in nodose than jugular nerves in intracellular calcium measurement. Nodose nerves also depolarized membrane potential to FMRFamide more than jugular nerves did, in patch-clamp recording, although the probability of action potential discharge was same in both nerves. The inward current induced by FMRFamide was characterized as mixed cations. These results suggest that FMRFamide may act as an activator and modulator of vagal sensory nerves for treating symptoms in visceral diseases.

Original languageEnglish
Pages (from-to)609-612
Number of pages4
JournalNeuroReport
Volume22
Issue number12
DOIs
Publication statusPublished - 2011 Aug 24

Fingerprint

FMRFamide
Afferent Neurons
Guinea Pigs
Neck
Vagus Nerve
Membrane Potentials
Action Potentials
Cations
Pharmacology
Calcium

Keywords

  • FMRFamide
  • intracellular calcium measurement
  • jugular ganglion
  • nodose ganglion
  • patch-clamp techniques
  • vagus nerve

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Direct activation of guinea pig vagal afferent neurons by FMRFamide. / Lee, Min-Goo; Park, Ji Yong; Park, Young Keun; Undem, Bradley J.

In: NeuroReport, Vol. 22, No. 12, 24.08.2011, p. 609-612.

Research output: Contribution to journalArticle

Lee, Min-Goo ; Park, Ji Yong ; Park, Young Keun ; Undem, Bradley J. / Direct activation of guinea pig vagal afferent neurons by FMRFamide. In: NeuroReport. 2011 ; Vol. 22, No. 12. pp. 609-612.
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