26308
Rats intoxicated with Cd for 30 days , significantly increased tissue malondialdehyde ( MDA ) levels and significantly decreased enzymatic antioxidants superoxide dismutase , glutathione peroxidase and catalase in the frontal cortex tissue .
 Chemical: Cd; Chemical: malondialdehyde; Chemical: MDA; Chemical: superoxide; 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: Cd; Chemical: malondialdehyde; Chemical: MDA; Chemical: superoxide; Chemical: glutathione