22986
In addition , extracellular signal - regulated kinase ( ERK ) and c - Jun N - terminal kinase ( JNK ) signaling pathways activated by thrombin treatment were prevented by the OPE pre - treatment .
 Chemical: N
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: N