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Cytokines, by manipulating neurotransmitters, are involved in the generation of sickness behavior, which shares some overlap with the symptoms of depression. Neurotransmitters hypothesized to be affected include dopamine and serotonin, which are common targets for antidepressant drugs.
Download as PDF; Printable version; ... A neurotransmitter is a signaling molecule secreted by a neuron to affect another ... Treats depression, some anxiety ...
The original monoamine hypothesis postulates that depression is caused by a deficiency or imbalances in the monoamine neurotransmitters (5-HT, NE, and DA). This has been the central topic of depression research for approximately the last 50 years; [ 12 ] [ 192 ] it has since evolved into the notion that depression arises through alterations in ...
The neurotrophic hypothesis of depression [1] proposes that major depressive disorder (MDD) is caused, at least partly, by impaired neurotrophic support.Neurotrophic factors (also known as neurotrophins) are a family of closely related proteins which regulate the survival, development, and function of neurons in both the central and peripheral nervous systems.
The pharmacology of antidepressants is not entirely clear.. The earliest and probably most widely accepted scientific theory of antidepressant action is the monoamine hypothesis (which can be traced back to the 1950s), which states that depression is due to an imbalance (most often a deficiency) of the monoamine neurotransmitters (namely serotonin, norepinephrine and dopamine). [1]
While depression is a complex condition with many factors involved, it is commonly attributed to an imbalance of several key monoamine neurotransmitters, including serotonin, dopamine and norepinephrine. This monoamine hypothesis of depression is popular because of the simplicity of the explanation. [4]
The neurotransmitters are then recognized by receptors on the surface of the recipient postsynaptic cell, which upon this stimulation, in turn, relays the signal. About 10% of the neurotransmitters are lost in this process; the other 90% are released from the receptors and taken up again by monoamine transporters into the sending presynaptic ...
Based on the monoamine hypothesis of depression, which asserts that decreased concentrations of monoamine neurotransmitters leads to depressive symptoms, the following relations were determined: "Norepinephrine may be related to alertness and energy as well as anxiety, attention, and interest in life; [lack of] serotonin to anxiety, obsessions ...
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