5560
Conversely , MB and / or PQ - induced GSTA4 - 4 expression / activity was further increased by NAC / SIL and glutathione reductase activity was also increased .
 Chemical: NAC; Chemical: glutathione
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: NAC; Chemical: glutathione