5835
Central to the bone-sparing effect of estrogen ( E(2) ) is its ability to block the monocytic production of the osteoclastogenic cytokine TNF-alpha ( TNF ).
 ( protein: osteoclastogenic cytokine TNF-alpha, None) , ( protein: TNF, 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: osteoclastogenic cytokine TNF-alpha, None) , ( protein: TNF, None) 