28350
The results showed that EGb could improve learning and memory abilities , enhance the activities of SOD and GSH - Px , attenuate the level of MDA , upregulate the ratio of Bcl - 2 / Bax , and downregulate the level of cleaved Caspase3 .
 Chemical: GSH
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: GSH