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Serotonin (/ ˌ s ɛr ə ˈ t oʊ n ɪ n, ˌ s ɪər ə-/) [6] [7] [8] or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter.Its biological function is complex, touching on diverse functions including mood, cognition, reward, learning, memory, and numerous physiological processes such as vomiting and vasoconstriction.
5-Hydroxyindoleacetic acid (5-HIAA) is the main metabolite of serotonin. The metabolic intermediate 5-hydroxyindoleacetaldehyde (5-HIAL) is formed from serotonin by monoamine oxidase (MAO) and then 5-HIAA is formed from 5-HIAL via aldehyde dehydrogenase (ALDH). In chemical analysis of urine samples, 5-HIAA is used to determine serotonin levels ...
In the brain, serotonin is a neurotransmitter and regulates arousal, behavior, sleep, and mood, among other things. [9] During prolonged exercise where central nervous system fatigue is present, serotonin levels in the brain are higher than normal physiological conditions; these higher levels can increase perceptions of effort and peripheral muscle fatigue. [9]
Sunlight can regulate serotonin, but because we run out of sunlight quite early in the day during late fall and winter, our brains will produce less serotonin. As serotonin levels drop, we start ...
Serotonin syndrome is a potentially life-threatening drug reaction that causes the body to have too much serotonin. It can be caused by certain drug interactions, as well as drinking alcohol while ...
Examples are dopamine, norepinephrine and serotonin. All monoamines are derived from aromatic amino acids like phenylalanine, tyrosine, and tryptophan by the action of aromatic amino acid decarboxylase enzymes. They are deactivated in the body by the enzymes known as monoamine oxidases which clip off the amine group.
As an SSRI, Lexapro works by modifying levels of the neurotransmitter serotonin in your brain and body. Serotonin plays a key role in regulating your moods, including feelings of happiness and ...
Similarly, after some research suggested that drugs that block the recycling, or reuptake, of serotonin seemed to help some people diagnosed with depression, it was theorized that people with depression might have lower-than-normal serotonin levels.
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