21737
Proliferative DR patients had significantly higher levels of plasma pentosidine , sRAGE , AOPP and sRAGE / pentosidine ratio than non - proliferative DR patients .
 Chemical: pentosidine; Chemical: pentosidine
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: pentosidine; Chemical: pentosidine