1599
Decreased levels of PRiMA - linked acetylcholinesterase ( AChE ) and butyrylcholinesterase ( BuChE ) have been observed in dystrophic muscle and nerve of dystrophin - deficient ( mdx ) and laminin - 2 deficient ( Lama2dy ) mice .
 None
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:  
Answer:
 None