372
Here , we have examined the effect of group I mGluRs on the regulation of the state of phosphorylation of the GluA1 subunit of the AMPA glutamate receptor .
 AMPA, glutamate
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 AMPA, glutamate