3374
The level of IL - 15 immunoreactivity ( IL - 15 - ir ) in plasma and gastrocnemius muscle was lower in obese than control rats , and the mRNA level of IL - 15 in gastrocnemius muscle was markedly decreased .
 None
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