Glucose-elevating agent
Diazoxide , which is used to counter hypoglycemia in disease states such as insulinoma ( a tumor producing insulin ) or congenital hyperinsulinism , increases blood glucose and decreases insulin secretion and glucagon accelerates breakdown of glycogen in the liver ( glycogenolysis ) to release glucose into the bloodstream . 
<triplet> glycogen <subj> glycogenolysis <obj> part of