Fig. 9. Developmental mRNA expression of BDNF, NT3 and NT4/5 in active (SBA+, black
bars) and activity-deprived (SBA, white bars) OTC. (A) BDNF mRNA
expression increased with age in active OTC, but remained low in deprived OTC.
(B) NT3 mRNA expression was slightly upregulated in young deprived OTC and
decreased until 45 DIV. (C) NT4/5 mRNA expression was strongly upregulated in
10 and 20 DIV activity-deprived OTC. The expression levels of the three mRNAs
in the 10 DIV SBA+ condition were set to 1.