12918
Gene expression analysis revealed that ORX mice fed HFD showed significantly decreased expression of microsomal triglyceride transfer protein , lipin - 1 , peroxisome proliferator - activated receptor ( PPAR ) - alpha and PPAR - gamma coactivator 1 - alpha , and significantly increased sterol regulatory element - binding protein - 1 , diacylglycerol acyltransferase - 2 and fatty acid synthase .
 Chemical: triglyceride; Chemical: sterol; Chemical: diacylglycerol; 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: triglyceride; Chemical: sterol; Chemical: diacylglycerol; Chemical: fatty acid