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XB-ART-9763
Neurochem Int 2001 Apr 01;384:333-40. doi: 10.1016/s0197-0186(00)00094-2.
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Ethanol sensitivity of recombinant human N-methyl-D-aspartate receptors.

Smothers CT , Clayton R , Blevins T , Woodward JJ .


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In this study, the ethanol sensitivity of human N-methyl-D-aspartate (NMDA) receptors stably expressed in L(tk-) cells, or transiently expressed in HEK 293 cells and Xenopus oocytes was determined. NMDA receptor function was measured using fura-2 calcium imaging for L(tk-) cells, whole cell voltage-clamp for HEK 293 cells, and two-electrode voltage clamp for oocytes. Ethanol inhibited NMDA receptor function in all three expression system, but was less potent for receptors expressed in L(tk-) cells. NMDA receptors composed of NR1a/2B subunits were inhibited to a greater extent by ethanol than NR1a/2A receptors when expressed in L(tk-) cells and HEK 293 cells, but not in oocytes. These results suggest that the method of receptor expression and assay system used may influence the degree of ethanol inhibition of recombinant NMDA receptors.

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