1679
We previously showed that either NMDA receptor antagonists or metabotropic glutamate receptor type 2 / 3 receptor agonists can block such a NaLac response , suggesting that a glutamate mechanism is contributing to this panic - like state .
 Chemical: NMDA; Chemical: glutamate; Chemical: NaLac; Chemical: glutamate
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: glutamate; Chemical: NaLac; Chemical: glutamate