23830
The janus kinases ( JAK ) , extracellular signal - regulated kinases ( ERK ) and signal transducers and activators of transcription ( STAT ) pathways have been shown to play a cardioprotective role .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None