16617
DHA dose - dependently decreased PMA - induced COX - 2 expression and PGE2 production , as well as COX - 2 promoter - driven luciferase activity .
 Chemical: DHA; Chemical: PMA; Chemical: PGE2
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: DHA; Chemical: PMA; Chemical: PGE2