7285
Whereas the addition of apomorphine in the low micromolar range produced an irreversible activation of the channel , application of higher concentrations caused a reversible voltage - dependent inhibition of heterologously expressed TRPA1 channels , resulting from a reduction of single - channel open times .
 Chemical: apomorphine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: apomorphine