8485
SrRan ( 3mM ) enhanced NO and PGE ( 2 ) release to the same extent in static osteocytes ( NO : 1 . 6 - fold ; PGE ( 2 ) : 2 . 8 - fold ) and PFF - stimulated osteocytes ( NO : 1 . 3 - fold ; PGE ( 2 ) : 2 . 6 - fold ) .
 SrRan, NO, PGE ( 2 ), NO, PGE ( 2 ), NO, PGE ( 2 )
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 SrRan, NO, PGE ( 2 ), NO, PGE ( 2 ), NO, PGE ( 2 )