11830
Our data suggest that nNOS in astrocytes regulates NF kappaB activity and iNOS expression , and indicate a novel regulatory role for nNOS in tonically suppressing central nervous system , NF kappaB -regulated genes .
 ( protein: nNOS, None) , ( protein: iNOS, None) , ( protein: nNOS, None) , ( cell type: astrocytes, None) , ( protein: NF kappaB, None) , ( protein: NF kappaB, None) , ( DNA: NF kappaB -regulated genes, 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: nNOS, None) , ( protein: iNOS, None) , ( protein: nNOS, None) , ( cell type: astrocytes, None) , ( protein: NF kappaB, None) , ( protein: NF kappaB, None) , ( DNA: NF kappaB -regulated genes, None) 