4720
Our previous study found that proteasome inhibitor ( MG132 ) treatment attenuated cardiac fibrosis and heart failure during the early and middle stages of pressure overload .
 Chemical: MG132
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: MG132