The Role of Other Hormones in Diabetes Management: More Than Just Insulin

When discussing diabetes, attention usually focuses on insulin, the hormone produced by the pancreas to regulate blood sugar levels. However, it turns out there are several other hormones that also play an important role in glucose metabolism and diabetes management, in both type 1 and type 2. A better understanding of these hormones can help develop a more holistic approach to managing diabetes.

Glucagon: Insulin's Partner in Regulating Blood Sugar
Glucagon is a hormone produced by the alpha cells in the pancreas, and it works to raise blood sugar levels when the body needs it, for example during fasting or hypoglycemia (low blood sugar). While insulin works to lower blood sugar levels, glucagon does the opposite — it raises blood sugar by stimulating the liver to release stored glycogen as glucose.

In type 1 diabetes patients, insulin production is impaired, but glucagon can still be released normally. This often causes an imbalance that makes blood sugar levels harder to regulate. In type 2 diabetes patients, insulin resistance is often accompanied by excessive glucagon production, which keeps blood sugar levels high even when there is already enough glucose in the blood. Because of this, controlling glucagon levels can be an important strategy in treating type 2 diabetes.

Several new drugs developed for diabetes patients aim to target glucagon production as a way to control blood sugar more effectively. Drugs such as GLP-1 (glucagon-like peptide-1) agonists work by reducing glucagon production and increasing insulin sensitivity.

Amylin: The Meal-Balancing Hormone
In addition to insulin, the pancreas also produces another hormone called amylin, which helps regulate blood sugar levels after eating. Amylin works by slowing gastric emptying and reducing blood sugar spikes after meals, as well as reducing appetite. In type 1 diabetes patients, amylin production, like insulin, is almost nonexistent due to damage to the pancreas's beta cells.

Amylin replacement in the form of additional therapy is already available for some type 1 and type 2 diabetes patients. This therapy helps improve the blood sugar spikes that occur after meals and improves overall glucose control. Even so, amylin therapy is still not widely used and requires close supervision from a doctor.

Cortisol: The Effect of Stress on Blood Sugar
Cortisol, often known as the stress hormone, also has a major influence on blood sugar levels. When the body is under stress, whether physical or emotional, the adrenal glands release cortisol, which causes an increase in blood glucose. This is a natural response by the body to provide extra energy when facing a stressful situation. However, in diabetes patients, especially those with type 2, continuously elevated cortisol levels can worsen blood sugar control and cause more severe insulin resistance.

That's why stress management is an important part of diabetes management. Patients who experience chronic stress tend to have higher blood sugar levels that are harder to control, so stress management therapies, such as meditation, yoga, or psychological counseling, are highly recommended.

Incretins: Digestive Hormones That Affect Insulin
Incretin hormones, such as GLP-1 and GIP (gastric inhibitory peptide), play a role in stimulating insulin release after eating. Incretins are produced by the intestines after you consume food and help the body respond more quickly to glucose intake. In type 2 diabetes patients, incretin function is often impaired, so the insulin response becomes less than optimal.

Incretin-based therapies, such as GLP-1 agonists and DPP-4 inhibitors, have become one of the popular treatments for type 2 diabetes. These drugs help enhance the incretin effect, so insulin levels can be better regulated and glucagon production can be suppressed. As a result, blood sugar can be controlled more stably, especially after meals.

Thyroid Hormone: Its Effect on Metabolism
Diabetes patients, especially those with type 2, also often experience thyroid disorders. Thyroid hormone, which regulates the body's metabolism, has a direct influence on how the body processes sugar. Hypothyroidism, or low thyroid hormone, can slow metabolism and cause insulin resistance, making blood sugar levels difficult to control. Conversely, hyperthyroidism, or excess thyroid hormone, can speed up metabolism, causing drastic weight loss and blood sugar fluctuations that are harder to predict.

Regular thyroid function checks are important for diabetes patients, especially if they experience symptoms related to thyroid disorders such as extreme fatigue, sudden weight changes, or skin problems.