Abstract
The effect of D-cycloserine, a N-methyl-D-aspartate receptor partial agonist, on the reconsolidation of conditioned fear memory is not precisely understood. In this study, we clarified the effects of D-cycloserine on the reconsolidation in rats, by performing contextual fear conditioning with a mild fear-conditioning procedure and with post-reexposure administration of the drug. The D-cycloserine (15mg/kgsubcutaneously)-treated rats showed a persistent and greater fear response during the test session compared with the control group. In conclusion, we have confirmed that post-reexposure administration of D-cycloserine facilitates the reconsolidation of fear memory in rats.
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