9778
The results clearly demonstrate that anoxia /reoxygenation ( A/R ) leads to a biphasic increase in neutrophil adhesion to HUVECs , with peak responses occurring at 30 minutes (phase 1) and 240 minutes (phase 2) after reoxygenation .
 ( cell line: HUVECs, 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:
 ( cell line: HUVECs, None) 