serotonin

{
  "id": "MLC-T-ONC-007688",
  "term": "serotonin",
  "field": "Oncology and biomedicine",
  "definition": "A substance that is found mostly in the digestive tract, central nervous system (brain and spinal cord), and platelets. Serotonin acts both as a neurotransmitter (a substance that nerves use to send messages to one another) and a vasoconstrictor (a substance that causes blood vessels to narrow). A low level of serotonin in the brain is thought to be a cause of depression. Also called 5-hydroxytryptamine.",
  "synonyms": [
    "5-hydroxytryptamine"
  ],
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/serotonin/"
}