n methyl dextro aspartic acid receptor blocking agent 10 Animals 8 article 8 drug effect 8 nonhuman 8 priority journal 8 Humans 6 NMDA 6 animal 6 controlled study 6 drug antagonism 6 human 6 physiology 6 2 amino 5 phosphonovaleric acid 4 AMPA receptor antagonist 4 Male 4 Memantine 4 Receptors, N-Methyl-D-Aspartate 4 Treatment Outcome 4 cell membrane potential 4 in vivo study 4 male 4 memantine 4 n methyl dextro aspartic acid receptor 4 neramexane 4 placebo 4 2,3 dihydro 5 methyl 3 (morpholinomethyl) 6 (1 naphthoyl)pyrrolo[1,2,3 de][1,4]benzoxazine 2 4 (1,1 dimethylheptyl) 1',2',3',4',5',6' hexahydro 2,3' dihydroxy 6' (3 hydroxypropyl)biphenyl 2 4 aminobutyric acid A receptor 2 4 aminobutyric acid receptor stimulating agent 2