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Altered Expression of Dscam in TemporalLobe Tissue From Human and Experimental Animals
Update time:2012-02-29 10:37:06   【 Font: Large  Medium Small

Down syndrome cell adhesion molecule (Dscam) is a neural adhesion molecule that plays an essential role in the establishment of neural circuits. Considerable evidence suggests that Dscam is required for axon guidance and dendritic arborization. Our aim was to investigate the expression of Dscam in the temporal lobes of patients with intractable epilepsy (IE) and of experimental animals. In this study, we used immunohistochemistry , immunofluorescence, and western blotting to examine Dscam expression in thirty-five surgical samples from brains of IE patients and 15 control brain samples. We also measured the levels of Dscam during the entire epileptic process in a rat model of temporal lobe epilepsy. Dscam expression in IE patients was significantly higher compared with that in the controls. In addition, Dscam was also highly expressed in the rat brain during the different phases of the epileptic process. It is the first time to find abnormal expression of Dscam in the brain tissues in patients with IE. And this finding provides an experimental evidence for the study of neuronal circuit remodeling and synaptic plasticity in IE, furthermore, our results also suggest that Dscam may be involved in the generation and the development of IE. 

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Source:SYNAPSE      by LAN SHEN, ZHENG XIAO, YUMIN PAN, MIN FANG, CHENGSHAN LI, DAN CHEN,
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