Definition of Serotonin

Babylon English
serotonin
n. essential hormone and neurotransmitter derived from the amino acid tryptophan, precursor of the hormone melatonin (Physiology)

Search Dictionary:
Search Web Search Dictionary



Serotonin definition was found in categories: Language, Idioms & Slang(1)  Medicine(6)  Entertainment & Music(1)  Encyclopedia(1)  

Serotonin Definition from Language, Idioms & Slang Dictionaries & Glossaries

WordNet 2.0
serotonin

Noun
1. a neurotransmitter involved in e.g. sleep and depression and memory
(synonym) 5-hydroxytryptamine
(hypernym) monoamine neurotransmitter


Serotonin Definition from Medicine Dictionaries & Glossaries

NCI Dictionary of Cancer Terms
serotonin
A hormone found in the brain, platelets, digestive tract, and pineal gland. It 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 lack of serotonin in the brain is thought to be a cause of depression. Also called 5-hydroxytryptamine.

Dictionary of Medicine (Shahram)
Serotonin
A chemical in the brain involved in the transmission of nerve impulses. Serotonin.can trigger the release of substances in the blood vessels of the brain that in turn cause the pain of the migraine.

Aids Glossary
serotonin
a neurotransmitter that has many effects, including blood vessel constriction and smooth muscle stimulation.

Hepatitis Central (TM) Liver Disease Medical Glossary
Serotonin
A necessary brain chemical. One of the four main neuro-humors or neuro-transmitters in higher vertebrate nervous systems. Serotonin is transported via the bloodstream to the nerve cells throughout the body, but most especially in the neurons of the brain. Here they accumulate in their minute molecular form. The molecule serotonin is utilized by the nerve cells for the complete execution of electrical impulses across the synaptic gap. Serotonin is produced in the gut of the intestinal tract as well as the Pineal organ. Serotonin will convert naturally to melatonin, which occurs chemically in the pineal gland. The pineal gland is the only area in the body where this is done. Research has demonstrated a strong link between appetite, mood, pain awareness, sleep and Serotonin. Abnormalities in the amount of Serotonin available to the brain have been linked with Aggression, Anxiety, Alcohol abuse, Depression, Drug abuse, Eating disorders, particularly bulimia and binge eating, as well as some forms of obesity, Headaches, including Migraines, Irritability, Insomnia and other sleep disorders, Mood swings and Mania, Premenstrual syndrome (PMS) especially moodiness & food cravings, Obsessive compulsive behavior, Seasonal affective disorder (SAD), Poor impulse control, and heightened sensitivity to pain

Glossary of Terms
Serotonin
A monoamine vasoconstrictor, found in various animals from coelenterates to vertebrates, in bacteria, and in many plants. In humans, it is synthesized in the intestinal chromaffin cells or in the central or peripheral neurons and is found in high concentrations in many body tissues, including the intestinal mucosa, pineal body, and central nervous system. Produced enzymatically from tryptophan by hydroxylation and decarboxylation, serotonin has many physiologic properties (e.g., inhibits gastric secretion, stimulates smooth muscle, serves as central neurotransmitter, and is a precursor of melatonin).

Muscle Pain
Serotonin
one of the vasoneuroactive substances; it constricts blood vessels, sensitizes or excites nociceptors, and is released from blood platelets.


Serotonin Definition from Entertainment & Music Dictionaries & Glossaries

gambling
Serotonin
A neurotransmitter within the central nervous system widely studied in affective disorders and substance abuse. (See also dopamine.)


Serotonin Definition from Encyclopedia Dictionaries & Glossaries

Wikipedia English - The Free Encyclopedia
Serotonin
For the professional wrestling stable, see Raven's Nest.
Serotonin (pronounced ) (5-hydroxytryptamine, or 5-HT) is a monoamine neurotransmitter synthesized in serotonergic neurons in the central nervous system (CNS) and enterochromaffin cells in the gastrointestinal tract of animals including humans. Serotonin is also found in many mushrooms and plants, including fruits and vegetables.

See more at Wikipedia.org...