BDNF CONCENTRATION IS RELATED TO CENTRAL 5-HT ACTIVITY
It is known that the
loudness dependence of auditory evoked potentials (LD) is related to the
central 5-HT transmission in humans. As the serotonergic phenotype has been
associated to serum BDNF levels, Lang, Hellweg and Gallinat studied whether
BDNF serum concentrations are related to LD in 109 healthy human volunteers (Association of the
BDNF Serum Concentrations with Central Serotonergic Activity: Evidence from
Auditory Signal Processing. Neuropsychopharmacology 30, 1148-1153, 2005).
The results indicate a
reasonably correlation. Low serum levels of BDNF reflect a central low activity
of serotonergic system.
Since disturbances of
serotonergic system have been implicated in several psychiatric disorders these
results could have some relevance in psychiatry.
BM&L-July 2005