6194
Similar selective effects on NF-kappaB transcription are seen with the unrelated antioxidants, N-acetylcysteine ( NAC ) and vitamin C .
 NF-kappaB
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:
 NF-kappaB