11819
Direct activation of PDGF beta receptors in primary hippocampal and cortical neurons inhibits NMDA receptor activity and attenuates NMDA receptor - induced neurotoxicity .
 Chemical: NMDA; 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; Chemical: NMDA