1545
In this study , we investigated the protection by chrysin , apigenin , and luteolin against tert - butyl hydroperoxide ( tBHP ) - induced oxidative stress and the possible mechanisms involved in rat primary hepatocytes .
 Chemical: chrysin; Chemical: apigenin; Chemical: luteolin; Chemical: tert - butyl hydroperoxide; Chemical: tBHP
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: chrysin; Chemical: apigenin; Chemical: luteolin; Chemical: tert - butyl hydroperoxide; Chemical: tBHP