1836
Pancreatic R1 remained constant in transgene - negative mice and decreased stepwise day - to - day in transgene - positive mice , mirroring their loss of BCM , confirmed by pancreatic insulin measurements and histology .
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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