5549
Therefore we conclude that flavonoids may be of therapeutic value for vascular disease through down regulation of NFkappaB /IkappaB system .
 ( protein: /IkappaB, None) , ( protein: NFkappaB, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: /IkappaB, None) , ( protein: NFkappaB, None) 