7154
Among these cytokines , the expression of IFN-gamma was associated with high levels of serum AST/ALT .
 serum AST/ALT, IFN-gamma, cytokines
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 serum AST/ALT, IFN-gamma, cytokines