Dawn phenomenon

Dawn phenomenon

Dawn phenomenon is defined as an increase in the blood sugar in the morning and is typically invoked in the context of diabetes. It is different from Chronic Somogyi rebound in that dawn effect is not associated with nocturnal hypoglycemia.

It is possible that dawn effect is caused by the release of counterregulatory hormones such as cortisol, glucagon, or epinephrine, all of which can signal the liver to release glucose. In most of the cases, there is no need to change insulin dosing of patients who encounter dawn effect.[1] The "dawn effect," also called the "dawn phenomenon," is the term used to describe an abnormal early-morning increase in blood sugar (glucose) — usually between 2 a.m. and 8 a.m. — in people with diabetes.

Some researchers believe it's due to the natural overnight release of hormones — including growth hormones, cortisol, glucagon, and epinephrine — that increase insulin resistance. Other causes may include insufficient insulin administration the night before, incorrect medication dosages, or eating carbohydrate snacks at bedtime.

Dawn phenomenon can be treated by avoiding carbohydrate intake at bedtime, adjusting the dosage of medication or insulin, switching to a different medication, or by using an insulin pump to administer extra insulin during early-morning hours.

External links

References

  1. ^ [1] Diabetes Journals - The Dawn Phenomenon

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