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Acute and chronic arecoline: Effects on a scopolamine-induced deficit in complex maze learning

Bratt, Alison M., Kelly, M.Elizabeth, Domeney, Annette M., Naylor, Robert J., Costall, Brenda (1996) Acute and chronic arecoline: Effects on a scopolamine-induced deficit in complex maze learning. Pharmacology Biochemistry and Behavior, 53 (3). 713 - 721. ISSN 0091-3057. (doi:10.1016/0091-3057(95)02074-8) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/0091-3057(95)02074-8

Abstract

Abstract These studies tested the effect of arecoline, a nonselective muscarinic agonist, administered either acutely or by chronic peripheral infusion via osmotic minipumps, on a scopolamine-induced deficit in a Stone (14 unit) T-maze task in rats. Scopolamine alone (0.125-1.0 mg/kg, IP) dose-dependently impaired maze acquisition, increasing maze run-times and to a lesser extent, the number of errors committed. Neither acute administration of arecoline (5.0 and 10.0 mg/kg, IP), when tested against a deficit induced by scopolamine (0.25 mg/kg, IP), nor chronic arecoline administration (30 and 50 mg/kg per 24 h), when tested against a deficit induced by scopolamine (0.5 mg/kg), were able to ameliorate the decrements in maze performance. In fact, the higher dose of arecoline (50 mg/kg per 24 h) infused over 10 days potentiated the scopolamineinduced deficit, with respect to latency. These data indicate that dose selection is of great importance when employing arecoline in tests of learning and memory and that the influence of the method of administration of arecoline on the behavioural outcome warrants further study.

Item Type: Article
DOI/Identification number: 10.1016/0091-3057(95)02074-8
Uncontrolled keywords: Stone maze, Arecoline, Scopolamine, Memory and learning, Cholinergic system, Continuous drug infusion, Osmotic minipumps
Divisions: Faculties > Sciences > Medway School of Pharmacy
Depositing User: Alison Bratt
Date Deposited: 07 Dec 2017 09:57 UTC
Last Modified: 29 May 2019 19:59 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/65048 (The current URI for this page, for reference purposes)
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