Glucagon: Understanding Its Role in Blood Sugar Regulation

What Is Glucagon?

Hormones are known as chemical messengers in our bodies. These substances act on different sites in our body and help to regulate various functions. Similarly, the glucagon hormone is a chemical messenger in our body. A specific type of cell known as the alpha cells in the islets of Langerhans in the pancreas make this hormone. It is interesting to know that both insulin and glucagon are formed in the same location by different cells.

Small portions of amino acids form a compound known as a peptide, and several amino acids join together via peptide bonds to form glucagon. Glucagon is made up of peptides, which is why it is called a peptide hormone.

How Does Glucagon Work in the Body?

Glucagon is produced in our pancreas. Nerves that control our internal organs help in this process. The most important factor that influences this process is our sugar level. After its production, the main role of glucagon is blood sugar regulation.

This hormone does not work on every cell or organ of our body. Only specific molecules known as receptors can attract this hormone. These receptors can be found in our liver, heart, kidneys, fatty tissues, and adrenal gland. Upon recognizing these receptors, the hormone binds with those receptors and kicks off several reactions inside those cells.

This reaction causes the breakdown of stored sugar inside our liver cells. This process is called glycogenolysis. In addition, the glucagon mechanism also acts on non-sugary substances like amino acids, lactate, glycerol, and propionate. Due to the action of the glucagon, these substances can change into sugar via a process called gluconeogenesis.

Thus, glucagon's action helps to maintain a steady level of sugar in our blood. As glucagon’s function is exactly opposite to that of insulin, the insulin versus glucagon action keeps our blood sugar level balanced.

Why Is It Important for Your Body?

As already mentioned, glucagon, as a hormone, acts as a chemical messenger. This hormone helps to control our blood sugar levels. The function of the insulin hormone is to bring down the sugar level in the blood. If you wonder what glucagon does, the simple answer is that it raises blood sugar levels.

1. Glucagon maintains the chemical process that regulates how protein and fat are metabolized in our bodies.

2. It regulates the storage and release of sugar in our body.

3. In emergencies like diseases, starvation, and extreme heat, this hormone keeps our glucose level in check.

Which Tests Can Measure Glucagon Levels Accurately?

Glucagon level measurement is important for use. A glucagon level can tell us the condition of the blood glucose level or whether the glucagon secretion is normal or not. In recent times, doctors use different methods to determine the glucagon level. These methods can be based on antibody determination, the enzyme-linked immunosorbent assay (ELISA) method, or radioimmunoassay. This test can help identify the following medical issues;

1. Hypoglycemia or a sudden drop in blood sugar.

2. Acute or chronic pancreatitis is caused by inflammation of the pancreas.

3. Glucagonoma (a rare tumor of the pancreas).

What Role Does Glucagon Play in Controlling Blood Sugar Levels?

As already mentioned, glucagon plays a crucial role in maintaining our blood sugar levels.

1. Our body needs glucose to keep its functions going. That is why, if there is a drop in the glucose level in our body, the body produces glucagon to raise the sugar level.

2. Sometimes, the sugar level in our body drops rapidly. This is very common in conditions like starvation, heat stroke, and severe disease. In these situations, the glucagon hormone is important, as it elevates blood sugar and helps protect the body.

How Is Glucagon Important in Diabetes Management?

Diabetes is a disease in which our blood sugar levels rise beyond our control. As a result, doctors prescribe medicines to lower our blood sugar levels. In severe cases, insulin is also used to control blood sugar levels.

However, during this process, patients must be careful about their diet, food intake, and insulin and glucagon balance. Any imbalance may cause a sudden drop in blood sugar level, which can be dangerous and lead to loss of sensations and sudden death.

In such situations, emergency glucagon use is needed. A glucagon injection, given into the arm or thigh of the patient, can raise their blood sugar and help in rapid recovery. Ideally, one injection of glucagon is sufficient. However, if the patient does not respond, another injection can be given after 15 minutes. A glucagon kit containing one milligram of injection is essential for diabetic patients. As glucagon is important in diabetes management, patients' relatives should know how to inject it in an emergency.

What Are the Risks and Side Effects of Glucagon?

Glucagon side effects include;

1. Mild nausea or vomiting is a common side effect.

2. You can also sense a mild headache or heaviness in the head after the injection.

3. In severe cases, you can experience rash, itching, or hives in the injection site.

Conclusion

The glucagon hormone helps to keep our blood levels balanced. Produced in the pancreas, this hormone can counter the action of insulin in the body. Also, it helps balance sugar storage and the metabolism of protein and fat. If you have diabetes, this hormone is very important for you. In emergencies, this hormone can raise your blood sugar level.

Key Takeaway From iCliniq

The main job of the glucagon hormone is to maintain sugar storage and keep the sugar level balanced. That is why glucagon's clinical applications can be seen in diabetes. In severe situations like hypoglycemia, glucagon injection can raise your sugar level and save your life. In case of any queries related to this, remember that endocrinologists at iCliniq are always there to help you.