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SIRT1 co - precipitated with PPAR alpha and nicotinamide increased the acetylation of the PPAR alpha coactivator PGC - 1 alpha , which was suppressed by resveratrol .
 Chemical: nicotinamide; Chemical: resveratrol
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: nicotinamide; Chemical: resveratrol