2356
Analysis of primary adipocytes isolated from Retn ( - / - ) , Retn ( + / - ) , and Retn ( + / + ) mice found that GIP stimulated the PKB / LKB1 / AMPK / LPL pathway and fatty acid uptake only in Retn ( + / + ) adipocytes , suggesting that GIP signaling and / or GIP responsiveness were compromised in Retn ( + / - ) and Retn ( - / - ) adipocytes .
 Chemical: fatty acid
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: fatty acid