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Diacylglycerol content was increased in liver and muscle when insulin resistance first developed , while the onset of insulin resistance in adipose tissue was associated with increases in ceramide and sphingomyelin .
 Diacylglycerol, sphingomyelin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Diacylglycerol, sphingomyelin