15972
To study the antioxidant defense system in melanocytes , the activities of superoxide dismutase ( SOD ) , catalase ( CAT ) and glutathione peroxidase ( GPx ) in cells exposed to amikacin were determined .
 Chemical: superoxide; Chemical: glutathione; Chemical: amikacin
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: superoxide; Chemical: glutathione; Chemical: amikacin