期刊
NEUROSCIENCE LETTERS
卷 524, 期 1, 页码 65-68出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2012.07.014
关键词
Barrel cortex; mGluR5; Dendritic spines
资金
- DSCRG
- [NS058758]
- [NS048884]
Alterations in dendritic spine densities and morphologies have been correlated with the abnormal functioning of the synapse. Specifically the metabotropic glutamate receptors (mGluR5) has been implicated in dendrogenesis and spineogenesis, since its activation triggers various signaling cascades that have been demonstrated to play roles in synaptic maturation and plasticity. Here we used the Golgi impregnation technique to analyze the dendritic spines of mGluR5(-/-) knockout mice in comparison to their heterozygote mGluR5(+/-) littermates. mGluR5(-/-) mice had elevated spine densities irrespective of spine type or location along their dendritic trees in comparison to mGluR5(+/-) animals. Such anatomical changes may underlie the hyperexcitability observed in mGluR5 total knockout mice. (C) 2012 Elsevier Ireland Ltd. All rights reserved.
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