13730
Since GIP ( glucose - dependent insulinotropic polypeptide ) is a strong stimulator of adipogenesis and may play a role in the development of obesity , we explored whether GIP directly would stimulate osteopontin ( OPN ) expression in adipose tissue and thereby induce insulin resistance .
 glucose
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 glucose