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pubmed:abstractText |
The effects of the excitatory amino acid (EAA) receptor antagonists MK-801 (non-competitive NMDA receptor antagonist), DNQX (competitive non-NMDA receptor antagonist) and 5,7-DCKA (antagonist of glycine site of NMDA receptor) have been examined on the naloxone (4 mg/kg, i.p.)-precipitated withdrawal jumping behaviour in morphine-dependent mice. The results indicate that withdrawal jumping behaviour in morphine-dependent mice was attenuated by all three EAA receptor antagonists, MK-801, DNQX and 5,7-DCKA. However, MK-801, DNQX and 5,7-DCKA inhibited the jumping behaviour in a relatively narrow dose range.
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