20911
This study examined the role of Nrf2 in CSA - mediated antioxidant effects on human hepatocarcinoma ( HepG2 ) cell line .
 Chemical: CSA
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: CSA