12996
Surprisingly , glutathione and reactive oxygen species ( ROS ) assays revealed that BPA application created a more reduced intracellular environment in cultured HEK 293 cells .
 Chemical: glutathione; Chemical: oxygen; Chemical: BPA
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: glutathione; Chemical: oxygen; Chemical: BPA