Presynaptic modulation of neurochemical transmission.

Acetylcholine/metabolism,pharmacology Adenine Nucleotides/pharmacology Animals Autonomic Nervous System/drug effects Brain/drug effects Dopamine/metabolism,pharmacology Humans Neural Inhibition/drug effects Neurotransmitter Agents/physiology Norepinephrine/pharmacology Peripheral Nerves/drug effects Prostaglandins E/pharmacology Receptors, Opioid/drug effects Serotonin/pharmacology Spinal Cord/drug effects Synapses/drug effects,physiology Synaptic Transmission/drug effects gamma-Aminobutyric Acid/pharmacology

Adenine Nucleotides Neurotransmitter Agents Prostaglandins E Receptors, Opioid Serotonin gamma-Aminobutyric Acid Acetylcholine Dopamine Norepinephrine