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© Research
Publication : Neurobiology of learning and memory

Aversive experiences are associated with a rapid and transient activation of ERKs in the rat hippocampus

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Neurobiology of learning and memory - 01 Jan 2002

Alonso M, Viola H, Izquierdo I, Medina JH

Link to Pubmed [PMID] – 11749089

Neurobiol Learn Mem 2002 Jan;77(1):119-24

The extracellular signal-regulated kinases (ERKs) family of mitogen-activated protein kinases (MAPKs) has been shown to participate in memory formation. We recently found that a hippocampal ERK/MAPK cascade is required for memory formation of an inhibitory avoidance training in rats. Here we reported that this learning task is accompanied by a rapid increase in the phosphorylation of hippocampal p44 MAPK. A single mild foot shock produced a similar effect and three consecutive foot shocks provoked the activation of both p44 and p42 MAPKs. In contrast, a brief exposure to the training box or the habituation to an open field did not alter hippocampal ERK/MAPK levels. Together, these findings indicate that aversive behavioral experiences induced a rapid and transient activation of ERK/MAPKs in the hippocampus.

http://www.ncbi.nlm.nih.gov/pubmed/11749089