23989
This study demonstrated that TRPA1 is a molecular sensor for wood smoke particulate and several chemical constituents thereof , in sensory neurons and A549 cells , suggesting that TRPA1 may mediate some of the adverse effects of wood smoke in humans .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None