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Circulating estrogen levels and hippocampal-dependent cognitive functions decline with aging. Moreover, the responses of hippocampal synaptic structure to estrogens differ between aged and young rats. We recently reported that estrogens increase levels of post-synaptic proteins, including PSD-95, and opioid peptides leu-enkephalin and dynorphin in the hippocampus of young animals. However, the influence...
In the brain, estrogen receptor β (ERβ) plays important roles in autonomic functions, stress reactivity and learning and memory processes. However, understanding the function of ERβ has been restricted by the limited availability of specific antisera, by difficulties discriminating the discrete localization of ERβ-immunoreactivity (ir) at the light microscopic level in many brain regions and the identification...
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