3376
Cells were incubated in the presence of xanthohumol and the activation of Nrf2 and expression of genes controlled by this transcription factor were evaluated .
 Chemical: xanthohumol
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: xanthohumol