2940
Conversely , the induction of lipocalin - 2 protein was observed in brain vascular cells following i . p . administration of recombinant IL - 6 , suggesting a direct relationship between IL - 6 and lipocalin - 2 .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None