Table 1.

BDNF protein in serum, hippocampus and amygdala homogenates and BDNF and TrkB receptor mRNA levels in hippocampal homogenates (± SEM)

Parameter	Control rats	BDNF+/− rats
Serum BDNF protein (ng/ml)	1.1 ± 0.1	0.3 ± 0.04***
Hippocampal BDNF protein (ng/g ww)	3.6 ± 0.1	2.5 ± 0.2***
Amygdala BDNF protein (ng/g ww)	2.9 ± 0.3	1.6 ± 0.4*
Hippocampal BDNF mRNA (AU)	0.9 ± 0.1	0.9 ± 0.1
Hippocampal TrkB mRNA (AU)	1.1 ± 0.1	1.3 ± 0.1

AU, arbitrary units.

^* P < 0.05 unpaired t‐test;

^*** P < 0.001.