20252
So it will be very interesting to study effect of HSYA on HSCs activation and liver fibrosis , and reveal the role of PPAR gamma . CCl4 and H2O2 were used to mimic oxidative stress mediated hepatic injury in vitro and in vivo respectively .
 Chemical: HSYA; Chemical: CCl4; Chemical: H2O2
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: HSYA; Chemical: CCl4; Chemical: H2O2