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Northern blot analysis of hepatic RNA revealed a dose - dependent increase in the expression of a number of genes critical for fatty acid oxidation , lipoprotein assembly , and lipid transport .
 Chemical: fatty acid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: fatty acid