Nitric oxide synthase inhibition impairs delayed recall in mature monkeys

Mark A. Prendergast, Alvin V Terry, William J. Jackson, Jerry J. Buccafusco

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The gaseous neuromodulator nitric oxide (NO) is formed in brain regions known to mediate learning and memory processes. In rodent models, pharmacologic inhibition of NO synthesis impairs such processes. In the present study, N(ω)-nitro-L-arginine methyl ester (L-Name), an inhibitor of the constitutive form of the NO synthetic enzyme, was administered to seven non-aged, mature monkeys (Macaca Fascicularis, Macaca Mulatta, and Macaca Nemestrima) trained to perform a delayed matching-to-sample task (DMTS). L-Name (1,5, 25, and 50 mg/kg) produced marked decrements in task performance, as well as a reduction in the number of trials completed at the highest dose. This impairment of DMTS accuracy by the 50 mg/kg doses of L-Name appears to be associated with an aversive state marked by gastrointestinal disturbance and lethargy. The detrimental effects of the 25 mg/kg dose of L-Name on DMTS accuracy were completely blocked by concurrent administration of a mole-equivalent dose of the NO amino acid precursor L-arginine. As a whole, these data suggest that L-Name impairs processes involved in delayed recall in monkeys and that this impairment is associated with attenuated synthesis of NO. However, at higher doses (≤ 25 mg/kg) this impairment is associated with aversive effects of L-Name, possibly at both central and peripheral sites.

Original languageEnglish (US)
Pages (from-to)81-87
Number of pages7
JournalPharmacology Biochemistry and Behavior
Volume56
Issue number1
DOIs
StatePublished - Jan 1 1996

Fingerprint

Nitric Oxide Synthase
Names
Haplorhini
Nitric Oxide
Arginine
Lethargy
Macaca fascicularis
Task Performance and Analysis
Macaca
Neurotransmitter Agents
Macaca mulatta
Brain
Inhibition (Psychology)
Rodentia
Data storage equipment
Amino Acids
Learning
Enzymes

Keywords

  • delayed matching
  • learning and memory
  • nitric oxide
  • non-human primates

ASJC Scopus subject areas

  • Biochemistry
  • Toxicology
  • Pharmacology
  • Clinical Biochemistry
  • Biological Psychiatry
  • Behavioral Neuroscience

Cite this

Nitric oxide synthase inhibition impairs delayed recall in mature monkeys. / Prendergast, Mark A.; Terry, Alvin V; Jackson, William J.; Buccafusco, Jerry J.

In: Pharmacology Biochemistry and Behavior, Vol. 56, No. 1, 01.01.1996, p. 81-87.

Research output: Contribution to journalArticle

Prendergast, Mark A. ; Terry, Alvin V ; Jackson, William J. ; Buccafusco, Jerry J. / Nitric oxide synthase inhibition impairs delayed recall in mature monkeys. In: Pharmacology Biochemistry and Behavior. 1996 ; Vol. 56, No. 1. pp. 81-87.
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