13487
Promoter and electromobility shift assays showed that transcriptional activation of NF - kappa B was significantly reduced by catalpol treatment , while AP - 1 was not .
 Chemical: catalpol
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: catalpol