November 2nd, 2015 |

X-linked Adrenoleukodystrophy Database

X-linked adrenoleukodystrophy (ALD) is the most frequent inherited disorder of the central nervous system white matter with a minimum incidence of 1 in 17.000 newborns. It is a progressive, systemic metabolic disease that affects brain, spinal cord, peripheral nerves, adrenal cortex and testis. The disease is caused by mutations in the ABCD1 gene. For a comprehensive summary, please visit the Facts on ALD page.

The ALD database was initiated in July 1999 by Hugo W. Moser, M.D. and Stephan Kemp, Ph.D.
The primary aims of the database are:

  1. Catalogue and facilitate the analysis of ALD mutations,
  2. Provide background information on ALD,
  3. Provide links to ALD patient organizations, and
  4. Help with contacting and finding (local) ALD health care professionals.


NEWS: In June 2015 ALD Connect launched its Patient Portal where the ALD community can take an active role in developing greater understanding and new therapies in the fight against ALD. You can now participate in a research study to create a global database of ALD patients, their symptoms, and their priorities. Please visit the ALD Connect Patient Portal page for more information.

New or updated pages:


The ALD database is a collaboration between the Peroxisomal Diseases Laboratory at the Kennedy Krieger Institute, Baltimore MD, USA and the Laboratory Genetic Metabolic Diseases at the Academic Medical Center / Emma Children’s Hospital, Amsterdam, the Netherlands.

We thank the Netherlands ALD Patient Organization for financial support.

Academic Medical Center

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