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Shuhei Ishikawa, Yasuhiro Saito, Yoshiki Yanagawa, Satoru Otani, Sachiko Hiraide, Kei-ichi Shimamura, Machiko Matsumoto and Hiroko Togashi Early postnatal stress alters extracellular signal-regulated kinase signaling in the corticolimbic system modulating emotional circuitry in adult rats European Journal of Neuroscience 35

Version of Record online: 15 DEC 2011 | DOI: 10.1111/j.1460-9568.2011.07921.x

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The present study elucidated whether early life stress alters the extracellular signal-regulated kinase (ERK) pathway that underlies fear retrieval and fear extinction based on a contextual fear conditioning paradigm, using a juvenile stress model. Levels of phospho-ERK (pERK), the active form of ERK, increased after fear retrieval in the hippocampal CA1 region but not in the medial prefrontal cortex (mPFC).

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