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GM1 produces attenuation of short-term memory deficits in Hebb-Williams maze performance after unilateral entorhinal
M M Glasier1, L S Janis, M I Goncalves
1Institute of Animal Behavior, Department of Psychology, Rutgers, the State University of New Jersey, Newark, USA. mglasier@bgsm.edu
Abstract:
The Hebb-Williams maze was used to examine spatial abilities of adult male Sprague-Dawley rats with unilateral electrolytic entorhinal cortex lesions. The injured rats were treated for 14 days with either saline or ganglioside GM1. Testing was begun 7 weeks following injury, and involved 12 maze problems with independent configurations, with immediate starting replacement used for the six trials per problem. Compared to sham-operated counterparts, the rats with lesion plus saline treatment were impaired in total number of errors, initial entry errors, and repeat errors over 12 consecutive problems. GM1-treated rats showed improved performance, making significantly fewer total and repeat errors, indicating that this substance may be potentially useful as therapy after entorhinal cortex injury.
