Forbes Disease

National Organization for Rare Disorders, Inc.

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Important
It is possible that the main title of the report Forbes Disease is not the name you expected.

Disorder Subdivisions

  • None

General Discussion

Forbes disease (GSD-III) is one of several glycogen storage disorders (GSD) that are inherited as autosomal recessive traits. Symptoms are caused by a lack of the enzyme amylo-1,6 glucosidase (debrancher enzyme). This enzyme deficiency causes excess amounts of an abnormal glycogen (the stored form of energy that comes from carbohydrates) to be deposited in the liver, muscles and, in some cases, the heart.

There are two forms of this disorder. GSD-IIIA affects about 85% of patients with Forbes disease and involves both the liver and the muscles. GSD-IIIB affects only the liver.

Supporting Organizations

Association for Glycogen Storage Disease

P.O. Box 896
Durant, IA 52747
USA
Tel: (563)514-4022
Fax: (563)514-4022
Email: info@agsdus.org
Website: http://www.agsdus.org

Association for Glycogen Storage Disease (UK) Ltd

Old Hambledon Racecourse
Sheardley Lane, Droxford
Hampshire, SO32 3QY
United Kingdom
Tel: 3001232790
Email: info@agsd.org.uk
Website: http://www.agsd.org.uk

CLIMB (Children Living with Inherited Metabolic Diseases)

Climb Building
176 Nantwich Road
Crewe, CW2 6BG
United Kingdom
Tel: 4408452412173
Fax: 4408452412174
Email: enquiries@climb.org.uk
Website: http://www.CLIMB.org.uk

Genetic and Rare Diseases (GARD) Information Center

PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
Website: http://rarediseases.info.nih.gov/GARD/

Muscular Dystrophy Association

3300 East Sunrise Drive
Tucson, AZ 85718-3208
USA
Tel: (520)529-2000
Fax: (520)529-5300
Tel: (800)572-1717
Email: mda@mdausa.org
Website: http://www.mda.org/

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report.

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

Last Updated:  10/12/2007
Copyright  2007 National Organization for Rare Disorders, Inc.