30387
Retinal Iba - 1 positive microglia were also decreased in URB597 - treated axotomized young animals and this decrease was mitigated by CB1 but not CB2 antagonism .
 Chemical: Retinal; Chemical: URB597
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: Retinal; Chemical: URB597