5549
Therefore we conclude that flavonoids may be of therapeutic value for vascular disease through down regulation of NFkappaB /IkappaB system .
 /IkappaB, NFkappaB
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 /IkappaB, NFkappaB