3362
All these results suggest that B12H substantially protected CGNs against glutamate - induced neuronal excitotoxicity via activating alpha 7nAChR / PI3 - K / Akt cascade .
 Chemical: B12H; 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: B12H; Chemical: glutamate