PMID- 16101757 OWN - NLM STAT- MEDLINE DCOM- 20051027 LR - 20191210 IS - 0953-816X (Print) IS - 0953-816X (Linking) VI - 22 IP - 3 DP - 2005 Aug TI - Requirement of NMDA receptor reactivation for consolidation and storage of nondeclarative taste memory revealed by inducible NR1 knockout. PG - 755-63 AB - We employed an inducible, reversible and region-specific gene knockout technique to investigate the requirements for cortical NMDA receptors (NMDAR) during the various stages (acquisition, consolidation and storage, and retrieval) of nondeclarative, hippocampal-independent memory in mice using a conditioned taste aversion memory paradigm. Here we show that temporary knockout of the cortical NMDAR during either the learning or postlearning consolidation stage, but not during the retrieval stage, causes severe performance deficits in the 1-month taste memory retention tests. More importantly, we found that the consolidation and storage of the long-term nondeclarative taste memories requires cortical NMDAR reactivation. Thus, the dynamic engagement of the NMDAR during the postlearning stage leads us to postulate that NMDAR reactivation-mediated synaptic re-entry reinforcement is crucial for overcoming the destabilizing effects intrinsic to synaptic protein turnover and for achieving consolidation and storage of nondeclarative memories in the brain. FAU - Cui, Zhenzhong AU - Cui Z AD - Center for Systems Neurobiology, Department of Pharmacology, Boston University, Boston, MA 02118, USA. FAU - Lindl, Kathryn A AU - Lindl KA FAU - Mei, Bing AU - Mei B FAU - Zhang, Shuqing AU - Zhang S FAU - Tsien, Joe Z AU - Tsien JZ LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - France TA - Eur J Neurosci JT - The European journal of neuroscience JID - 8918110 RN - 0 (Extracellular Matrix Proteins) RN - 0 (NR1 NMDA receptor) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 0 (Sweetening Agents) RN - 147336-22-9 (Green Fluorescent Proteins) RN - 149137-54-2 (Lox protein, mouse) RN - EC 1.4.3.13 (Protein-Lysine 6-Oxidase) RN - EC 2.7.7.- (Cre recombinase) RN - EC 2.7.7.- (Integrases) RN - FST467XS7D (Saccharin) RN - G4962QA067 (Lithium Chloride) SB - IM MH - Analysis of Variance MH - Animals MH - Avoidance Learning/drug effects/*physiology MH - Behavior, Animal/physiology MH - Cerebral Cortex/anatomy & histology/*physiology MH - Conditioning, Psychological MH - Extracellular Matrix Proteins/genetics/metabolism MH - Gene Expression Regulation/physiology MH - Green Fluorescent Proteins/biosynthesis MH - Integrases/genetics MH - Lithium Chloride/pharmacology MH - Long-Term Potentiation/drug effects/physiology MH - Memory/drug effects/*physiology MH - Mice MH - Mice, Transgenic MH - Protein-Lysine 6-Oxidase/genetics/metabolism MH - Receptors, N-Methyl-D-Aspartate/deficiency/genetics/*physiology MH - Saccharin/pharmacology MH - Sweetening Agents/pharmacology MH - Taste/drug effects/*physiology MH - Time Factors EDAT- 2005/08/17 09:00 MHDA- 2005/10/28 09:00 CRDT- 2005/08/17 09:00 PHST- 2005/08/17 09:00 [pubmed] PHST- 2005/10/28 09:00 [medline] PHST- 2005/08/17 09:00 [entrez] AID - EJN4257 [pii] AID - 10.1111/j.1460-9568.2005.04257.x [doi] PST - ppublish SO - Eur J Neurosci. 2005 Aug;22(3):755-63. doi: 10.1111/j.1460-9568.2005.04257.x.