23675
To exclude that impaired MF - LTP in BDNF + / - mice was due to developmental changes in response to chronically reduced BDNF levels , and to prove the importance of acute availability of BDNF in MF - LTP , we also tested effects of acute interference with BDNF / TrkB signaling .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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