2944
This difference was reflected in significantly attenuated mRNA expression of Cox - 2 in the brain of lipocalin - 2 knockout female mice , but not of male mice , following challenge with peripheral LPS .
 None
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