Addison's Disease

What is Addison's Disease?

Addison's Disease, also known as primary adrenal insufficiency, is a rare disorder that occurs when the adrenal glands do not produce enough cortisol and, in some cases, aldosterone. These hormones are vital for various bodily functions, including stress response, metabolism, and blood pressure regulation.

Causes and Risk Factors

Autoimmune response: The most common cause, where the immune system attacks the adrenal glands.
Infections: Such as tuberculosis or other infections that can damage the adrenal glands.
Genetic disorders: Conditions like congenital adrenal hyperplasia.
Adrenal gland cancer: Tumors affecting adrenal function.

Symptoms of Addison's Disease

Common symptoms include:

Chronic fatigue
Muscle weakness
Unintentional weight loss
Low blood pressure, sometimes leading to fainting
Darkening of the skin (hyperpigmentation), especially on scars and skin creases
Salt craving
Nausea, vomiting, and diarrhea

Diagnosis and Treatment

Diagnostic Tests

Diagnosis typically involves:

Blood tests: To measure cortisol, sodium, potassium, and ACTH (adrenocorticotropic hormone) levels.
ACTH stimulation test: Checks how the adrenal glands respond to ACTH.
Imaging tests: Such as CT scans of the adrenal glands or pituitary gland if needed.

Treatment Options

Hormone replacement therapy: To replace missing cortisol and, if necessary, aldosterone.
Emergency hydrocortisone injection: For times of significant stress, such as surgery or severe illness.
Regular monitoring: To adjust hormone levels as needed and manage symptoms.

Prognosis

With appropriate treatment, individuals with Addison's disease can lead normal lives, but they require lifelong hormone therapy and periodic health monitoring.

References & Research

Historical Background

Addison's disease was first described in 1855 by the English physician Thomas Addison in his monograph "On the Constitutional and Local Effects of Disease of the Suprarenal Capsules," making it one of the earliest recognized endocrine disorders. The introduction of synthetic cortisone by Edward Kendall and Philip Hench in 1949 transformed the condition from a fatal diagnosis into a manageable chronic disease.

Research Papers

The following PubMed topic searches aggregate the current peer-reviewed literature. Each link opens a live PubMed query — results update as new studies are indexed.