29887
Levels of brain acetylcholine ( Ach ) , serum and brain acetylcholinesterase ( AchE ) activity , C - reactive protein ( CRP ) , total nuclear factor kappa - B ( NF - kappa B ) , and monocyte chemoattractant protein - 1 ( MCP - 1 ) were estimated .
 Chemical: acetylcholine
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: acetylcholine 
Answer:
 Chemical: acetylcholine