513
Moreover , PSG - 1 induced nuclear factor - kappa B activation by elevation of p65 nuclear translocation , suggesting that PSG - 1 probably stimulated macrophage activities by activating the nuclear factor - kappa B pathway .
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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:
 None