16231
In contrast , siRNA - mediated knockdown of HO - 1 expression reduced the inhibitory effect of compound 1 on LPS - stimulated iNOS induction and NO production .
 Chemical: NO
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: NO