26838
In the kidney cortex , perturbation of homeostasis by a TLR7 - dependent nucleic acid " danger " signal , which may signify viral infection or local cell death , triggers G alpha i - dependent intravascular retention of Ly6C ( low ) monocytes by the endothelium .
 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