1608
A marked increase was observed in both the cell lines in the nitrate plus nitrite concentration , protein carbonyls and thiobarbituric acid reactive substances ( TBARS ) .
 Chemical: nitrate; Chemical: nitrite; Chemical: carbonyls; Chemical: thiobarbituric acid
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: nitrate; Chemical: nitrite; Chemical: carbonyls; Chemical: thiobarbituric acid