25110
Changes in the Bc1 - 2 / Bax expression ratio may facilitate activation of caspase - 3 and aggravate neuronal apoptosis after brain injury .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None