5363
Collectively , these data show that Kv2 . 1 regulates insulin secretion in beta - cells and Kv2 . 2 modulates somatostatin release in delta - cells .
 Chemical: somatostatin
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: somatostatin