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In conclusion , our findings suggest melamine increased inflammation and oxidative stress via activation of NF - kappa B / COX - 2 and NOX / ROS pathway , and first revealed the critical role of NOX in melamine - induced ROS production , suggesting the potential of NOX inhibitor against melamine toxicity .
 Chemical: melamine; Chemical: melamine; Chemical: melamine
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: melamine; Chemical: melamine; Chemical: melamine