21241
In conclusion , this study demonstrated that MeHg inhibited the TCDD - mediated induction of CYP1A1 through a posttranslational mechanism and confirms the role of HO - 1 in a MeHg - mediated effect .
 Chemical: MeHg; Chemical: TCDD; Chemical: MeHg
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: MeHg; Chemical: TCDD; Chemical: MeHg