2960
Collectively , these data demonstrate altered regulation of hepatic phase II metabolism in mice during pregnancy and suggest that CAR , PPAR alpha , PXR , and ER alpha signaling pathways may be candidate signaling pathways responsible for these changes .
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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