17615
Oxidative stress may be the starter point , as it leads to the activation of transcription factors and signaling pathways , including NF - kB and p38 MAPK , which leads to the release of cytokines and chemokines .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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