4379
The effects of either catecholamine on IL-12 or IL-10 secretion were blocked completely by propranolol , a beta-adrenoreceptor antagonist , indicating that they were mediated by the beta-adrenergic receptor .
 ( protein: IL-12, None) , ( protein: IL-10, None) , ( protein: beta-adrenergic receptor, 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: IL-12, None) , ( protein: IL-10, None) , ( protein: beta-adrenergic receptor, None) 