7291
Previous report demonstrated that thyroid hormone ( TH ) negatively regulates mouse SCD - 1 gene promoter before SREBP - 1c was revealed .
 Chemical: thyroid hormone
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: thyroid hormone