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Acetic acid - induced colitis caused a significant increase in the macroscopic and microscopic tissue ranking scores as well as an elevation in colonic myeloperoxidase ( MPO ) activity , malondialdehyde ( MDA ) levels , and the number of apoptotic epithelial cells in colon tissue compared to controls .
 Chemical: Acetic acid; Chemical: malondialdehyde; Chemical: MDA
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: Acetic acid; Chemical: malondialdehyde; Chemical: MDA