19687
It was shown that luteolin induces apoptotic cell death through modulating both the extrinsic pathway and intrinsic pathways , which are suppressed by z - VAD - fmk , indicating that luteolin triggers caspase - dependant apoptosis .
 luteolin, luteolin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 luteolin, luteolin