29113
Among the transcription factors that play critical roles in GSH metabolism are NF - E2 - related factor 2 ( Nrf2 ) and activating transcription factor 4 ( ATF4 ) .
 GSH
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 GSH