Even if depression starts with a single abnormal neurotransmitter
, things that happen afterward turn it into a multisystem disease, at least as far as serotonin and the hypothalamic-pituitary-adrenal axis are concerned," said Dr.
We rarely have enough change in tyrosine levels with normal food, but if you administer it alone, it can increase the production of neurotransmitters
In a larger sense, the experiment suggests that neurotransmitters
like serotonin play a dual role in pain - passing messages between individual nerve cells, but also modulating the general level of responsiveness of the entire system.
Serotonin is a neurotransmitter
in the brain that is thought to play a key role in controlling depression.
convert the electrical information into chemical information that can cross the synapse and stimulate or inhibit the next neuron (Hyman 2005).
An electrical signal causes the containers and membrane to fuse and the neurotransmitters
flow from the nerve ending to be captured by other nerve cells.
Receptor: A protein usually found on the surface of a neuron or other cell that recognizes and binds to neurotransmitters
or other chemical messengers.
Serotonin (5-HT): Reduced levels of this neurotransmitter
within the brain are associated with feelings of depression, aggression, irritability, anxiety and despair.
The effect of polychlorinated biphenyls on the uptake of dopamine and other neurotransmitters
into rat brain synaptic vesicles.
Inhibition of reuptae allows buildup of neurotransmitters
in the synapse and activation of the auto-receptors, leading to a decrease in firing activity, said Dr Blier.
are chemicals that permit the passage of signals within the brain.
Serotonin, famed as the target of Prozac and other antidepressants, acts as a neurotransmitter
, relaying signals from one brain cell to the next.