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Gene Expression and Signal Transduction Cascades Mediating Estrogen Effects on Memory

  • Kristina K. Aenlle
  • Thomas C. Foster
Chapter
Part of the Advances in Neurobiology book series (NEUROBIOL, volume 2)

Abstract

Estrogen treatment has been shown to influence memory function and protect against age-related cognitive decline. However, the mechanism through which estrogen acts to regulate these processes is not well understood. Research in this area has focused on the hippocampus and other limbic structures, due to their well-established role in memory processes. In particular, the impact of estrogen on Ca2+-dependent synaptic plasticity is of interest, since synaptic plasticity provides a potential memory mechanism. Estrogen acts through rapid Ca2+ signaling cascades to modify induction of synaptic plasticity and control translational mechanisms via the phosphorylation state of transcription factors, leading to structural modifications. Estrogen can also influence transcription through estrogen receptor (e.g., ERα and ERβ) interactions with estrogen response elements located on DNA. Thus, in addition to rapid effects on synaptic function, transcriptional mechanisms lead to longer term trophic and neuroprotective benefits that may maintain hippocampal health in the face of aging.

Keywords

Estrogen Aging Memory Synaptic plasticity Hippocampus Signal transduction cascade Estrogen receptor 

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© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Department of Neuroscience, McKnight Brain InstituteUniversity of FloridaGainesvilleUSA

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