3284
Artemisinic acid inhibits melanogenesis through downregulation of C / EBP alpha - dependent expression of HMG - CoA reductase gene .
 Artemisinic acid, HMG - CoA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Artemisinic acid, HMG - CoA