2220
These results together suggest that pias1 may function as an immediate early gene in an activity - dependent manner and PIAS1 expression is regulated by the NMDA - MAPK / ERK - CREB signaling pathway implicated in neuronal plasticity .
 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