Alternate Names : Adrenoleukodystrophy, Adrenomyeloneuropathy, Childhood cerebral adrenoleukodystrophy, ALD, Schilder-Addison Complex
Adrenoleukodystrophy describes several closely related inherited disorders that disrupt the breakdown (metabolism) of certain fats (very-long-chain fatty acids).
Overview, Causes, & Risk Factors
Adrenoleukodystrophy is passed down from parents to their children as an X-linked genetic trait. It therefore affects mostly males, although some women who are carriers can have milder forms of the disease. It affects approximately 1 in 20,000 people from all races.
The condition results in the buildup of very-long-chain fatty acids in the nervous system, adrenal gland, and testes, which disrupts normal activity. There are three major categories of disease:
* Childhood cerebral form — appears in mid-childhood (at ages 4 – 8)
* Adrenomyelopathy — occurs in men in their 20s or later in life
* Impaired adrenal gland function (called Addison disease or Addison-like phenotype) — adrenal gland does not produce enough steroid hormones
Pictures & Images
NALD is an inheritable disorder that affects the adrenal glands, the white matter of the brain and the testes. Some of the symptoms for this disorder include seizures, hyperactivity, crossed eyes, paralysis, hearing loss, and muscular weakness.
Reviewed By : Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.