Neurotransmitter Agents Animals 52 nonhuman 46 priority journal 42 article 40 controlled study 34 neurotransmitter release 32 Mice 28 Rats 24 agents interacting with transmitter, hormone or drug receptors 24 mouse 24 rat 24 synaptic transmission 24 Synaptic Transmission 22 animal tissue 22 calcium ion 22 animal 20 animal cell 20 calcium channel 20 neuromuscular synapse 20 neurotransmitter 20 Calcium Channel Blockers 18 Calcium Channels 18 Neuromuscular Junction 18 nerve ending 18 physiology 18 Calcium Channels, N-Type 16 Humans 16 drug effect 16 omega-Conotoxin GVIA 16