29773
There were no significant changes in the plasma lipid levels and 8 - isoprostane , a marker of oxidative stress .
 Chemical: 8 - isoprostane
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: 8 - isoprostane