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In contrast , dihydroxyacetone , a fructose metabolite , caused protein carbonylation and autoxidized to form dicarbonyls , which effects were further potentiated under oxidative stress conditions ( Fenton ' s reaction ) .
 dihydroxyacetone, fructose, dicarbonyls
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 dihydroxyacetone, fructose, dicarbonyls