Serotonin is a biochemical compound that contributes to a variety of important biological functions, including the regulation of mood and emotions. Certain brain cells make serotonin and release it ...

Serotonin is a neurotransmitter, a chemical that moves back and forth in the space (called the synapse) between two nerve cells, or neurons. When one neuron is ready to send a message to another, it ...

Serotonin reuptake inhibitors (SRIs) are a class of drugs that affect the brain’s serotonin system, and doctors most commonly prescribe them as antidepressants. SRIs increase the levels of serotonin ...

Scientists have discovered a new kind of synapse in the tiny hairs on the surface of neurons. The commonly overlooked protrusions called primary cilia contain special junctions that act as a shortcut ...

BERLIN—A multicenter project to identify new targets for antidepressant therapy has been launched in Europe, the project's coordinator announced at the Human Genome Meeting here on Monday (April 5).

Linda Geddes reports that the long-term use of selective serotonin re-uptake inhibitors (SSRIs) in people with depression and panic disorder actually decreases serotonin levels through an unknown ...