2706
Reversal of dopamine D2 agonist - induced inhibition of ventral tegmental area neurons by Gq - linked neurotransmitters is dependent on protein kinase C , G protein - coupled receptor kinase , and dynamin .
 dopamine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 dopamine