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Based on our results , silibinin may attenuate the phenylephrine - induced hypertrophic response of H9c2 cells via antioxidant mechanisms involving mainly the inhibition of the intracellular signaling pathways mediated by ERK1 / 2 MAPKs and Akt .
 Chemical: silibinin; Chemical: phenylephrine
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: silibinin; Chemical: phenylephrine