Effects of glycine antagonists on Mg2+- and glycine-induced binding

作者: Kotaro Hatta , Toshifumi Yamamoto , Takafumi Hori , Masao Okuwa , Takashi Moroji

DOI: 10.1016/0304-3940(92)90470-R

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摘要: Abstract We investigated the effects of glycine antagonists, 3-amino-1-hydroxy-2-pyrrolidone (HA-966), 7-chlorokynurenic acid (7-Cl-KYNA), 6-cyano-7-nitroquinoxaline-2,3-dione (CNQX), 6,7-dichloro-3-hydroxy-2-quinoxalinecarboxylic (DHQXC), 6,7-dichloroquinoxaline-2,3-dione (DCQX), and 5-chloro-indole-2-carboxylic (5-Cl-I2CA), on Mg2+- glycine-induced [ 3 H ]N-(1-[2- thienyl]cyclohexyl )-3,4- piperidine ([ H]TCP ) binding to well-washed rat cortical membranes. Except for 5-Cl-I2CA, all antagonists completely inhibited not only glycine- but also Mg2+-induced [3H]TCP in a concentration-dependent manner. Out antogonists examined DHQXC most selectively binding, while DCQX was selective inhibiting binding.

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