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Considering that nuclear regulatory factor-kappa beta (NF-kappa B)/Rel is a common regulatory element of the promoter region of the inflammatory cytokine genes , herein, we tested the hypothesis that acute ethanol affects NF-kappa B activation in human monocytes .
 ( DNA: inflammatory cytokine genes, None) , ( cell type: human monocytes, None) , ( protein: nuclear regulatory factor-kappa beta, None) , ( DNA: promoter region, None) , ( protein: (NF-kappa B)/Rel, None) , ( protein: NF-kappa B, None) , ( protein: regulatory element, 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:
 ( DNA: inflammatory cytokine genes, None) , ( cell type: human monocytes, None) , ( protein: nuclear regulatory factor-kappa beta, None) , ( DNA: promoter region, None) , ( protein: (NF-kappa B)/Rel, None) , ( protein: NF-kappa B, None) , ( protein: regulatory element, None) 