13164
Recently, it was suggested that activation of the alpha isoform of PPAR by the potent proinflammatory mediator leukotriene B4 ( LTB4 ) enhanced degradation of this eicosanoid, offersuggesting a new aspect of down-regulation of inflammation .
 ( protein: alpha isoform, None) , ( protein: PPAR, 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: alpha isoform, None) , ( protein: PPAR, None) 