19056
These effects were associated with changes in mRNA expression of FA elongase ( FAE ) , Delta 5 - desaturase ( FAD5 ) and Delta 6 - desaturase ( FAD6 ) genes .
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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