13480
Also , ROS from NADPH oxidase favors ERK1 / 2 activation that phosphorylates Stat3 in serine , resulting in a compensatory or adaptive survival response such as production of metallothionein - II in short Cd exposure times .
 Chemical: NADPH; Chemical: serine; Chemical: Cd
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: NADPH; Chemical: serine; Chemical: Cd