3194
Metformin significantly reduced ghrelin secretion and proghrelin mRNA production and both these effects were blocked by co - incubation with the AMPK inhibitor compound C .
 Chemical: Metformin; Chemical: compound C
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: Metformin; Chemical: compound C