
Keywords: ACh; acetylcholine; AChE; acetylcholinesterase; BBB; blood-brain barrier; BuChE; butyrylcholinesterase; CNS; central nervous system; DCG IV; 2S,2'R,3'R-2-(2',3'-dicarboxycyclopropyl)glycine; FDA; Food & Drug Administration (USA); GABA; γ-amino bu