12964
Surprisingly , GTC - treated Tg mice exhibited significant decreases in behavioral impairment , A beta - 42 production , APP - C99 / 89 expression , gamma - secretase component and Wnt protein levels , gamma - secretase activity and MAPK activation .
 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