4811
Overall , we conclude that DPA noncompetitively inhibits NMDA - induced current by a novel voltage - dependent mechanism and represents a new class of anionic NMDAR antagonists .
 Chemical: DPA; 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: DPA; Chemical: NMDA