22062
In addition , in vivo treatment with the PEI1 . 8 - DA / SHP - 1 siRNA polyplexes induced a highly significant reduction in myocardial apoptosis and infarct size in rat MI models .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None