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EtOH also increased the formation of malondialdehyde in the liver , indicating an increase in lipid peroxidation and depletion of antioxidant enzyme activities as superoxide dismutase , catalase and glutathione peroxidase .
 EtOH, malondialdehyde, superoxide, glutathione
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 EtOH, malondialdehyde, superoxide, glutathione