ACh	Acetylcholine
ADP	Adenosine 5′-diphosphate
AMP	Adenosine 5′-monophosphate
ATP	Adenosine 5′-triphosphate
CNS	Central nervous system
EDL	Extensor digitorum longus
GABA	γ-amino butyric acid
IDP	Inosine-5′-diphospate
PPADS	Pyridoxalphosphate-6-azophenyl-2′,4′-disulfonic acid
UTP	Uridine 5′-triphosphate
2-MeSADP	2-methylthio-adenosine 5′-diphosphate