8749
Pharmacogenetic investigations have shown that CYP450 , as well as aldehyde dehydrogenase , are clearly involved with Cy metabolism and are associated with altered treatment response , Cy metabolism and the unique stem - cell sparing capacity .
 Chemical: aldehyde
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: aldehyde