14083
In this study , we examined the effects of transmethylation on tumorigenic responses and its regulatory mechanism using an upregulation strategy of adenosylhomocysteine ( SAH ) acting as a negative feedback inhibitor .
 Chemical: adenosylhomocysteine; Chemical: SAH
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: adenosylhomocysteine; Chemical: SAH