3156
These results suggest that Y1R participates in the reciprocal regulation of NPY , GP , and CREB in the hypothalamus during PPA treatment in conscious rats .
 Chemical: PPA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: PPA 
Answer:
 Chemical: PPA