3698
However , most of the studies evaluating its role used either drug treatment ( i . e . rapamycin ) or modification of expression of proteins known to modulate its activity , and the direct role of raptor in insulin secretion is unclear .
 Chemical: rapamycin
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: rapamycin