Glucagon is a hormone that helps balance the glucose level in the blood by working in association with other hormones. It is secreted by the alpha cells of the pancreas and influences the liver in the reduction of stored glycogen into glucose when there is glucose deficiency in the body. Furthermore, it protects the liver from glucose consumption by releasing it into the blood. Also, it is needed for gluconeogenesis, in which glucose is synthesized from the amino acid molecules.
Glucagon: Understanding Its Role in Blood Sugar Regulation
Glucagon balances insulin's action and keeps blood sugar balanced. It is very useful for diabetic patients to prevent a sudden drop in blood sugar.
Understanding Hypoglycemia: Symptoms, Causes, and Management
Hypoglycemia or low sugar is common in diabetic patients. What is needed to be done in case of emergency is discussed in this article.

Glucagonomas - Causes, Symptoms, Diagnosis, and Management
Glucagonomas are rare tumors in the cells of the pancreas that cause excess production of the hormone glucagon. This article explains glucagonoma in detail.