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A serotonin pathway identifies aggregate projections from neurons which synthesize and communicate the monoamine neurotransmitter serotonin. [ citation needed ] These pathways are relevant to different psychiatric and neurological disorders.
Cell group B9 is a group of cells located in the pontine tegmentum, ventral to serotonergic group B8. In the nonhuman primate they are found in the ventral part of the superior central nucleus and adjacent structures. [3] In the rodent they have a more lateral location within the medial lemniscus of the pons and dorsal and medial to it., [4] [5]
The MRN is involved in the serotonin pathway. [3] Serotonin (5-HT) is the chief neurotransmitter of the median raphe nucleus. [4] According to one study, it represents the main source of serotonin (5-hydroxytryptamine (5-HT)) in the brain. [3] Stimulation of the MRN significantly increases the amount of 5-HT present in the brain. [5]
It has been observed that the pathology of depression involves dysfunction of monoamine neurotransmitter circuits in the CNS, particularly of serotonin and norepinephrine. Selective serotonin reuptake inhibitors (SSRIs) are the most widely used antidepressant and include fluoxetine (Prozac), citalopram (Celexa), and fluvoxamine (Luvox). These ...
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.
[2] [6] Serotonin plays an essential role in mediating energy balance, [7] including appetite suppression and weight reduction, [8] by stimulation of the melanocortin-4 receptors, [9] as was previously hypothesized, [10] by a pathway to the brain stem via the hypothalamus, even though there are also peripheral pathways. [11]
An Iowa school is catching flak for having no “rizz.”. A teacher in a school district near the Nebraska border is being accused of banning the word short for charisma along with over two dozen ...
The genes encoding human 5-HT 3 receptors are located on chromosomes 11 (HTR3A, HTR3B) and 3 (HTR3C, HTR3D, HTR3E), so it appears that they have arisen from gene duplications. The genes HTR3A and HTR3B encode the 5-HT 3A and 5-HT 3B subunits and HTR3C, HTR3D and HTR3E encode the 5-HT 3C, 5-HT 3D and 5-HT 3E subunits.