6862
The hippocampi were collected on PND 50 or PND 85 after the completion of the novel object recognition test , and the expression levels of neurotrophins and the NMDA receptor and its signal transduction pathway - related genes were examined using real - time RT - PCR .
 Chemical: NMDA
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: NMDA