The effect of MK-801, an antagonist to NMDA-glutamate receptors, on reconsolidation of olfactory discrimination task in rats and taste discrimination in edible snails was examined. Twenty-four hours after conditioning, the animals received a single systemic injection of MK-801 followed by a reminding conditional stimulus. Disturbances in retrieval of the acquired task were observed 10 days after injection followed by a reminding procedure. Repeated conditioning of these animals did not restore the task. Injection of MK-801 without reminding stimulation had no effect on task retention. Thus, disturbances of NMDA-dependent reconsolidation of the associative memory in animals of different taxonomic groups irreversibly eliminated long-term memory.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 150, No. 9, pp. 253-264, September, 2010
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Storozheva, Z.I., Solntseva, S.V., Nikitin, V.P. et al. Irreversible Amnesia in Rats and Edible Snails under Conditions of Associative Memory Reconsolidation Disturbance Caused by NMDA-Glutamate Receptor Antagonist. Bull Exp Biol Med 150, 286–290 (2011). https://doi.org/10.1007/s10517-011-1124-3
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DOI: https://doi.org/10.1007/s10517-011-1124-3