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
8085 Saltsburg Road
Suite 201
Pittsburgh, PA 15239
United States
Tel: 4127938077
Fax: 4127936477
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: 5205292000
Fax: 5205295300
Tel: 8003444863
Email: mda@mdausa.org
Internet: http://www.mdausa.org

Muscular Dystrophy Campaign
7-11 Prescott Place
London, SW4 6BS
United Kingdom
Email: info@muscular-dystrophy.org
Internet: http://www.muscular-dystrophy.org

National Institute of Neurological Disorders and Stroke (NINDS)
31 Center Drive
8A07
Bethesda, MD 20892-2540
Tel: (301)496-5751
Fax: (301)402-2186
Tel: (800)352-9424
Email: braininfo@ninds.nih.gov
Internet: http://www.ninds.nih.gov/

Parent Education Network
203 Brookfield Drive
Straford, WI 54484
Tel: (715)687-4551

Society for Muscular Dystrophy Information International
P.O. Box 4790
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: 4149641799
Fax: 4149647176
Tel: 8889642001
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@btopenworld.com
Internet: http://www.cmdn-mitonet.co.uk

New Horizons Un-Limited, Inc.
811 East Wisconsin Ave
Suite 937
Milwaukee, WI 53202
USA
Tel: 4142990124
Fax: 4143471977
Email: horizons@new-horizons.org
Internet: http://www.new-horizons.org

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

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

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

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.

For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email orphan@rarediseases.org

Last Updated:  11/12/2008
Copyright  1992, 2000, 2007, 2008 National Organization for Rare Disorders, Inc.