3121
These data suggest that 20 - HETE stimulates superoxide formation by pathways other than apocynin - sensitive NAD ( P ) H oxidase , thereby activating MAPK and then enhancing VEGF synthesis that drives EC proliferation .
 EC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 EC