16226
At 6h after LPS challenge , when iNOS induction was not clearly seen , treatment with LPS or compound 1 alone increased expression of heme oxygenase 1 ( HO - 1 ) whose transcription is regulated by Nrf2 .
 Chemical: heme
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: heme