15092
In mice with beta - cell - specific deletion of Atg7 ( autophagy - related 7 ) , a critical autophagy gene , reduction of beta - cell mass and pancreatic insulin content were observed together with impaired insulin secretory function .
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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