Why do parasites cause loss of appetite? Scientists have identified a gut-to-brain signaling pathway involving tuft cells and ...

Recent research has opened the debate on whether chemical imbalances cause depression, anxiety, and other conditions ...

Researchers have identified two gut bacteria that can produce serotonin, a key chemical that regulates bowel movements. In experiments with mice lacking serotonin, the microbes boosted serotonin ...

Scientists at the University of Science and Technology of China have identified a signaling chain that starts with gut ...

A new study has for the first time elucidated the gut-liver immune regulatory axis jointly maintained by intestinal commensal ...

In a discovery that could guide the development of next-generation antidepressants and antipsychotic medications, researchers at the Icahn School of Medicine at Mount Sinai have developed new insights ...

Major depressive disorder (MDD) is a severe form of depression characterized by a persistent low mood, hopelessness, ...

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 ...

A team of scientists is proposing a new explanation for some cases of long Covid, based on their findings that serotonin levels were lower in people with the complex condition. In their study, ...

The placenta has long been thought to produce serotonin during pregnancy. But in a new study, Yale researchers shatter the deep-rooted hypothesis — and show that the placenta doesn’t produce serotonin ...