2092
[ Nat . Neurosci . 9 ( 2006 ) , 917 ] recently identified the microglial - specific fractalkine receptor ( CX3CR1 ) as an important mediator of MPTP - induced neurodegeneration of DA neurons .
 Chemical: MPTP; Disease: neurodegeneration; Chemical: DA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: MPTP, neurodegeneration, DA 
Answer:
 Chemical: MPTP; Disease: neurodegeneration; Chemical: DA