Mitochondrial Neurogastrointestinal Encephalopathy

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Mitochondrial Neurogastrointestinal Encephalopathy is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Synonyms

  • MEPOP
  • MNGIE
  • MNGIE syndrome
  • muscular dystrophy, oculogastrointestinal
  • POLIP
  • myoneurogastrointestinal encephalopathy syndrome

Disorder Subdivisions

  • None

General Discussion

Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is a rare multisystem disorder characterized by progressive degeneration of the muscles of the gastrointestinal tract causing gastrointestinal dysmotility, weakness of extra-ocular muscles causing drooping of the eyelids (ptosis) and restricted eye movements (ophthalmoparesis), degeneration of peripheral nerves causing altered sensation and weakness the distal arms and legs, and general wasting (cachexia). The specific symptoms associated with MNGIE vary from case to case and may include vomiting, nausea, diarrhea, abdominal pain, and numbness or sensations of pins and needles in the hands and feet. . Additional findings may occur in some cases. MNGIE is caused by changes (mutations) in the ECGF1 gene encoding thymidine phosphorylase (TP) and is inherited as an autosomal recessive trait.

MNGIE patients also show changes (e.g. depletions, deletions, or mutations) in the genetic material (DNA) of the mitochondria. Mitochondria, found by the hundreds within virtually every cell of the body, generate most of the cellular energy through the respiratory chain enzymes (complexes I-V), which convert electrons derived from sugars and fats into ATP, the energy currency of the cell. The genetic blueprints for essential components of the respiratory chain are mitochondrial DNA (mtDNA). Disorders due to mitochondrial dysfunction, often defects of the respiratory chain, are called mitochondrial disease. Because energy is essential for many tissue functions, mitochondrial diseases typically affect multiple organs of the body.

Resources

United Mitochondrial Disease Foundation (UMDF)
8085 Saltsburg Road
Suite 201
Pittsburgh, PA 15239
United States
Tel: (412)793-8077
Fax: (412)793-6477
Tel: (888)317-8633
Email: info@umdf.org
Internet: http://www.umdf.org

Association of Gastrointestinal Motility Disorders, Inc. (AGMD)
AGMD International Corporate Headquarters
12 Roberts Drive
Bedford, MA 01730
Tel: (781)275-1300
Fax: (781)275-1304
Email: digestive.motility@gmail.com
Internet: http://www.agmd-gimotility.org

Muscular Dystrophy Association
3300 E. Sunrise Dr
Tucson, AZ 85718
USA
Tel: (520)529-2000
Fax: (520)529-5300
Tel: (800)572-1717
Email: mda@mdausa.org
Internet: http://www.mda.org/

Muscular Dystrophy Campaign
61 Southwark Street
London, SE1 0HL
United Kingdom
Tel: 020 7803 4800
Email: info@muscular-dystrophy.org
Internet: http://www.muscular-dystrophy.org

National Institute of Neurological Disorders and Stroke (NINDS)
P.O. Box 5801
Bethesda, MD 20824
Tel: (301)496-5751
Fax: (301)402-2186
Tel: (800)352-9424
TDD: (301)468-5981
Email: me20t@nih.gov
Internet: http://www.ninds.nih.gov/

Parent Education Network
2107 Industrial Highway
York, PA 17402
Tel: (717)600-0100
Fax: (717)600-8101
Tel: (800)522-5827
Email: pen@parentednet.org

Society for Muscular Dystrophy Information International
P.O. Box 7490
Bridgewater
Nova Scotia, B4V 2X6
Canada
Tel: 902-685-3961
Fax: 902-685-3962
Email: smdi@auracom.com
Internet: http://users.auracom.com/smdi

International Foundation for Functional Gastrointestinal Disorders
P.O. Box 170864
Milwaukee, WI 53217
USA
Tel: (414)964-1799
Fax: (414)964-7176
Tel: (888)964-2001
Email: iffgd@iffgd.org
Internet: http://www.iffgd.org

Children's European Mitochondrial Disease Network
Mayfield House
30 Heber Walk
Chester Way
Northwich, Intl CW9 5JB
United Kingdom
Tel: 44 0 1606 43946
Fax: 44 0 1606 43946
Email: info@cmdn.org.uk
Internet: http://www.emdn-mitonet.co.uk/

New Horizons Un-Limited, Inc.
811 East Wisconsin Ave
Suite 937
Milwaukee, WI 53202
USA
Tel: (414)299-0124
Fax: (414)347-1977
Email: horizons@new-horizons.org
Internet: http://www.new-horizons.org

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
TDD: (888)205-3223
Email: ordr@od.nih.gov
Internet: http://rarediseases.info.nih.gov/Default.aspx

Let Them Hear Foundation
1900 University Avenue, Suite 101
East Palo Alto, CA 94303
Tel: (650)462-3143
Fax: (650)462-3144
Tel: (877)735-2929
Email: info@letthemhear.org
Internet: http://www.letthemhear.org

For a Complete Report

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

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