6269
The later events of the neurodegenerative process are characterized by persistent astrogliosis and activation of apoptotic neuronal death through caspase 3 mediated mechanisms , which could be related with glutamate excitotoxicity .
 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