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This dissociation was one of the key triggers for an explosion of interest in glutamate receptors , and much has been discovered since that collectively contributes to our contemporary understanding of glutamatergic synapses - their biophysics and subunit composition , of the agonists and antagonists acting on them , and their diverse functions in different networks of the brain and spinal cord .
 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: glutamate