10226
Thus , fasting reduced the spontaneous firing rates of oxytocin neurones in nonpregnant rats , and this effect could be reversed by the excitatory effects of leptin .
 Chemical: oxytocin
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: oxytocin