Abstract
Glutamate is the most abundant excitatory brain neurotransmitter that has important functional significance with respect to neurodegenerative conditions. Glutamate-mediated excitotoxicity and neurodegeneration in Alzheimer’s disease (AD) has been gradually becoming elucidated recently. Excessive release of glutamate induces an increase in intracellular Ca2+ levels, thus triggers a cascade of cellular responses, ultimately leading to neuronal cell death. This type of neuronal damage induced by over-excitation has been proposed to be involved in a number of neuropathological conditions, ranging from acute insults to chronic neurodegenerative disorders. Estrogen could be effective in modulating glutamate-induced neurotoxicity and the protective responsivenesses are mostly estrogen receptors (ERs)-dependent. However, the mechanism underlying estrogen’s neuroprotective effect is not fully clarified and is complicated by the presence of several distinct ER types. So a deeper research into the neuroprotection of ERs might be informative about the positive effect that estrogen might have on ageing-related cognitive changes. Extensive studies have indicated the neuroprotective effects of ERs against glutamate-induced neurotoxicity. The purpose of this review is to elucidate ERs’ neuroprotective effects against glutamate-induced cytotoxicity and explore new ways to prevent and cure neurotoxicity-associated neurodegenerative disorders.
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Acknowledgments
The work was supported by the National Natural Science Foundation of China (81371223 and 81371437) and the Research Fund for the Doctoral Program of Higher Education of China (20122105110010).
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The authors declare that they have no conflict of interest related to the publication of this article.
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Lan, YL., Zhao, J. & Li, S. Estrogen receptors’ neuroprotective effect against glutamate-induced neurotoxicity. Neurol Sci 35, 1657–1662 (2014). https://doi.org/10.1007/s10072-014-1937-8
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DOI: https://doi.org/10.1007/s10072-014-1937-8