6570
Among them , derivative 4i inhibited food intake induced by the NPY Y5 selective agonist , and chronic oral administration of 4i in DIO mice caused a dose - dependent reduction of body weight gain .
 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