18800
During inflammation , several Transient Receptor Potential ( TRP ) channels are directly or indirectly activated by inflammatory signaling molecules and microenvironmental changes including heat , oxidative conditions or low pH .
 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