(A–C) Using osmotic mini-pumps, we infused mBdnf-AntagoNAT9 (CAACATATCAGGAGCC) or control oligonucleotide (CCACGCGCAGTACATG) constantly over a period of 28 d, into the third ventricle of mouse brain (n=5 per treatment group *= P < 0.05, **= P < 0.01, ***= P < 0.001). mBdnf-AntagoNAT9 directed against Bdnf-AS but not the control oligonucleotide resulted in an increase in Bdnf levels in the hippocampus (A) and frontal cortex (B). In the hypothalamus (C) both transcripts were unchanged, as was expected for a tissue that is not directly connected to the third ventricle of the brain.
(D–E) We assessed BDNF protein levels by ELISA and found that mBdnf-AntagoNAT9 treatment results in an increase in BDNF protein, both in the hippocampus (D) and frontal cortex (E), as compared to control oligonucleotide treated mice.