Finally we may have an objective test and put away the questionaires that throw almost every stroke survivor into a depression diagnosis because they so heavily weight fatigue. Secondly why do we even need a depression test for survivors? Isn't there enough proof that anti-depressants are quite helpful in recovery?
Antidepressants may help people recover from stroke even if they are not depressed
Depression is detectable in the blood
Researchers at the MedUni Vienna have demonstrated the possibility of
using a blood test to detect depression. While blood tests for mental
illnesses have until recently been regarded as impossible, a recent
study clearly indicates that, in principle, depression can in fact be
diagnosed in this way and this could become reality in the not too
distant future.
Serotonin transporter (SERT) is a protein in the cell membrane that
facilitates the transport of the neurotransmitter serotonin (popularly
known as the "happiness hormone") into the cell. In the brain, serotonin
transporter regulates neural depression networks. Depressive conditions
can frequently be caused by a lack of serotonin. As a result, the
serotonin transporter is also the point of action for the major
antidepressant drugs.
The serotonin transporter, however, also occurs in large quantities
in numerous other organs such as the intestines or blood. Recent studies
have shown that the serotonin transporter in the blood works in exactly
the same way as in the brain. In the blood, it ensures that blood
platelets maintain the appropriate concentration of serotonin in the
blood plasma.
Researchers at the MedUni Vienna have now used functional magnetic
resonance imaging of the brain and pharmacological investigations to
demonstrate that there is a close relationship between the speed of the
serotonin uptake in blood platelets and the function of a depression
network in the brain.
More at link.
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