Neuropeptide Substance P Improves Water Maze Performance in Aged Rats

Overview

Journal Psychopharmacology (Berl)

Specialty Pharmacology

Date 1990 Jan 1

PMID 1693002

Citations 8

Authors

R U Hasenohrl

J P Huston

T Schuurman

Affiliations

Soon will be listed here.

Abstract

The effects of the peripherally administered neuropeptide substance P (SP) on spatial learning capacities were investigated in 27-month-old rats using a water-maze task. Old rats were injected intraperitoneally once daily for 6 days with 50 or 250 micrograms/kg SP or vehicle 30 min prior to acquisition trials. Improvement in maze performance was observed following injections of 250 micrograms/kg SP only. Furthermore, vehicle-treated old rats showed significantly poorer acquisition rates than vehicle-treated 12-week-old rats. Thus, the improvement in performance after the 250 micrograms/kg dose of SP can be interpreted in terms of a compensation of performance deficit in the old rats.

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