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Serotonin in the brain is not usually degraded after use, but is collected by serotonergic neurons by serotonin transporters on their cell surfaces. Studies have revealed nearly 10% of total variance in anxiety-related personality depends on variations in the description of where, when and how many serotonin transporters the neurons should deploy.
A 2003 study proposed that a gene-environment interaction (GxE) may explain why life stress is a predictor for depressive episodes in some individuals, but not in others, depending on an allelic variation of the serotonin-transporter-linked promoter region . [15]
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]
Results showed their review of research on serotonin — the “happy hormone” — revealed “no convincing evidence that depression is associated with, or caused by, lower serotonin ...
A study finds that antidepressants don’t boost the feel-good brain chemical serotonin, as previously thought. Here’s what you need to know. Skip to main content. 24/7 Help. For premium support ...
This article needs to be updated. The reason given is: Many outdated sources and information (older than five years). Please help update this article to reflect recent events or newly available information. (July 2024) Medical condition Major depressive disorder Other names Clinical depression, major depression, unipolar depression, unipolar disorder, recurrent depression Sorrowing Old Man (At ...
SSRIs, which first came onto the market in the 1980s, work by blocking the reabsorption of serotonin into your brain. This increases the levels of serotonin on hand and can lessen anxiety symptoms.
The serotonin transporter (SERT or 5-HTT) also known as the sodium-dependent serotonin transporter and solute carrier family 6 member 4 is a protein that in humans is encoded by the SLC6A4 gene. [5] SERT is a type of monoamine transporter protein that transports the neurotransmitter serotonin from the synaptic cleft back to the presynaptic ...