23676
Inhibition of TrkB tyrosine kinase signaling with k252a , or with the selective BDNF scavenger TrkB - Fc , both inhibited MF - LTP to the same extent as observed in BDNF + / - mice .
 Chemical: tyrosine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: tyrosine