3092
Mice with cardiomyocyte - restricted deletion of STAT3 exhibited worse cardiac function , higher levels of cardiomyocyte apoptosis , and a greater induction of Ku70 and Ku80 in response to DOX treatment during the acute stage when compared with control animals .
 Chemical: DOX
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: DOX