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Therefore , to examine the hypothesis , we verified the effect of vitamin C on CS - induced expression of NF - kappa B driven luciferase reporter and NF - kappa B binding at its target DNA by EMSA in alveolar epithelial A549 cells .
 Chemical: vitamin C
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: vitamin C