Recreational drugs can affect neurotransmitters in the reward pathway ... Agonists stimulate specific receptors which decreases the number and sensitivity of the receptors. As the sensitivity ...

The modulatory neurotransmitters activate G protein-coupled receptors, which share signal transduction systems in cells. In addition to regulating key physiological functions, these systems are ...

N-methyl D-aspartate (NMDA) receptors are ligand-gated cation channels activated by glutamate, an excitatory neurotransmitter. These receptors are located mostly at excitatory synapses and ...

In multicellular organisms, growth factors, hormones, neurotransmitters ... to internal signaling pathways. Membrane receptors fall into three major classes: G-protein-coupled receptors, ion ...

Researchers at McGill University have found that sodium – the main chemical component in table salt – is a unique on/off switch for a major neurotransmitter receptor in the brain. Researchers ...