期刊
JOURNAL OF NEUROSCIENCE
卷 31, 期 42, 页码 14893-14898出版社
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.3677-11.2011
关键词
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资金
- CNRS
- Claude Bernard Lyon1 University
A role for newborn neurons in olfactory memory has been proposed based on learning-dependent modulation of olfactory bulb neurogenesis in adults. We hypothesized that if newborn neurons support memory, then they should be suppressed by memory erasure. Using an ecological approach in mice, we showed that behaviorally breaking a previously learned odor-reward association prematurely suppressed newborn neurons selected to survive during initial learning. Furthermore, intrabulbar infusions of the caspase pan-inhibitor ZVAD (benzyloxycarbonyl-Val-Ala-Asp) during the behavioral odor-reward extinction prevented newborn neurons death and erasure of the odor-reward association. Newborn neurons thus contribute to the bulbar network plasticity underlying long-term memory.
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