Involvement of neurotransmitters in the action of the nociceptin/orphanin FQ peptide-receptor system on passive avoidance learning in rats

Miklós Palotai, Ágnes Adamik, G. Telegdy

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The nociceptin/orphanin FQ peptide (NOP) receptor and its endogenous ligand plays role in several physiologic functions of the central nervous system, including pain, locomotion, anxiety and depression, reward and drug addiction, learning and memory. Previous studies demonstrated that the NOP-receptor system induces impairment in memory and learning. However, we have little evidence about the underlying neuromodulation. The aim of the present study was to investigate the involvement of distinct neurotransmitters in the action of the selective NOP receptor agonist orphan G protein-coupled receptor (GPCR) SP9155 P550 on memory consolidation in a passive avoidance learning test in rats. Accordingly, rats were pretreated with a nonselective muscarinic acetylcholine receptor antagonist, atropine, a γ-aminobutyric acid subunit A (GABA-A) receptor antagonist, bicuculline, a D2, D3, D4 dopamine receptor antagonist, haloperidol, a nonselective opioid receptor antagonist, naloxone, a non-specific nitric oxide synthase inhibitor, nitro-l-arginine, a nonselective α-adrenergic receptor antagonist, phenoxybenzamine and a β-adrenergic receptor antagonist, propranolol. Atropine, bicuculline, naloxone and phenoxybenzamine reversed the orphan GPCR SP9155 P550-induced memory impairment, whereas propranolol, haloperidol and nitro-l-arginine were ineffective. Our results suggest that the NOP system-induced impairment of memory consolidation is mediated through muscarinic cholinergic, GABA-A-ergic, opioid and α-adrenergic receptors, whereas β-adrenergic, D2, D3, D4-dopaminergic and nitrergic mechanisms are not be implicated.

Original languageEnglish
Pages (from-to)1477-1483
Number of pages7
JournalNeurochemical Research
Volume39
Issue number8
DOIs
Publication statusPublished - 2014

Fingerprint

Avoidance Learning
Peptide Receptors
Neurotransmitter Agents
Rats
Data storage equipment
Phenoxybenzamine
Adrenergic Antagonists
Bicuculline
Haloperidol
Naloxone
G-Protein-Coupled Receptors
Atropine
Propranolol
Cholinergic Agents
Arginine
Consolidation
Learning
Aminobutyrates
GABA-A Receptor Antagonists
Narcotic Antagonists

Keywords

  • Neurotransmitters
  • Nociception/orphanin FQ
  • Orphan GPCR SP9155 P550
  • Passive avoidance learning
  • Receptor antagonits

ASJC Scopus subject areas

  • Cellular and Molecular Neuroscience
  • Biochemistry
  • Medicine(all)

Cite this

Involvement of neurotransmitters in the action of the nociceptin/orphanin FQ peptide-receptor system on passive avoidance learning in rats. / Palotai, Miklós; Adamik, Ágnes; Telegdy, G.

In: Neurochemical Research, Vol. 39, No. 8, 2014, p. 1477-1483.

Research output: Contribution to journalArticle

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