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However , in the presence of glutathione - S - transferase ( GST ) , MFA - AMP mediated formation of MFA - GSH increased 6 - fold , while MFA - CoA mediated formation of MFA - GSH only increased 1 . 4 - fold .
 glutathione, S, MFA - AMP, MFA - GSH, MFA - CoA, MFA - GSH
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 glutathione, S, MFA - AMP, MFA - GSH, MFA - CoA, MFA - GSH