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Disease Profile
Charcot-Marie-Tooth disease type 1E
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.
Unknown
Age of onset
Childhood
ICD-10
G60.0
Inheritance
Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.
Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.
X-linked
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.
X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.
Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.
Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.
Not applicable
Other names (AKA)
CMT 1E; Charcot-Marie-Tooth disease, demyelinating, Type 1E; Charcot-Marie-Tooth disease and deafness;
Categories
Congenital and Genetic Diseases; Ear, Nose, and Throat Diseases; Nervous System Diseases
Summary
Charcot-Marie-Tooth disease type 1E (CMT1E) is a form of Charcot-Marie-Tooth disease, which is a group of rare conditions that affect the peripheral nerves. Signs and symptoms of CMT1E generally become apparent between age 5 and 25 years, although the age of onset and disease severity can vary significantly from person to person. In general, CMT1E is associated with the typical features of Charcot-Marie-Tooth disease type 1 (progressive weakness of the feet and/or ankles; foot drop; atrophy of muscles below the knee; absent tendon reflexes of upper and lower extremities; and a decreased sensitivity to touch, heat, and cold in the feet and/or lower legs) in addition to
Symptoms
This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.
Medical Terms | Other Names |
Learn More:
HPO ID
|
---|---|---|
Percent of people who have these symptoms is not available through HPO | ||
Areflexia |
Absent tendon reflexes
|
0001284 |
0000006 | ||
Childhood onset |
Symptoms begin in childhood
|
0011463 |
Decreased motor nerve conduction velocity | 0003431 | |
Distal muscle weakness |
Weakness of outermost muscles
|
0002460 |
Distal sensory impairment |
Decreased sensation in extremities
|
0002936 |
Foot dorsiflexor weakness |
Foot drop
|
0009027 |
Hammertoe |
Hammer toe
Hammertoes
[ more ] |
0001765 |
Hyporeflexia |
Decreased reflex response
Decreased reflexes
[ more ] |
0001265 |
Juvenile onset |
Signs and symptoms begin before 15 years of age
|
0003621 |
Limb muscle weakness |
Limb weakness
|
0003690 |
Pes cavus |
High-arched foot
|
0001761 |
Sensorineural hearing impairment | 0000407 | |
Split hand |
Claw hand
Claw hand deformities
Claw hands
Claw-hand deformities
Split-hand
[ more ] |
0001171 |
Steppage gait |
High stepping
|
0003376 |
Talipes calcaneovalgus | 0001884 |
Organizations
Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.
Organizations Supporting this Disease
-
Charcot-Marie-Tooth Association
PO Box 105
Glenolden, PA 19036
Toll-free: 1-800-606-2682
Telephone: +1-610-499-9264
Fax: +1-610-499-9267
E-mail: [email protected]
Website: https://www.cmtausa.org/ -
Charcot-Marie-Tooth Association Australia Inc.
Building 22
Concord Hospital
Concord, NSW, 2139 Australia
Telephone: (02) 9767 5105
E-mail: [email protected]
Website: https://www.cmt.org.au -
Charcot-Marie-Tooth UK (CMT UK)
3 Groveley Road
Christchurch, Dorset BH23 3HB
United Kingdom
Telephone: 0300 323 6316
E-mail: [email protected]
Website: https://www.cmt.org.uk/ -
CMT Research Foundation
4062 Peachtree Road
Suite A209
Atlanta, GA 30319
Telephone: (404) 806-7180
E-mail: [email protected]
Website: https://cmtrf.org/ -
Hereditary Neuropathy Foundation Inc.
401 Park Avenue, 10th Floor
New York, NY 10016
Toll-free: 1-855-435-7268
Telephone: +1-212-722-8396
Fax: +1-917-591-2758
E-mail: [email protected]
Website: https://www.hnf-cure.org/
Organizations Providing General Support
-
Muscular Dystrophy Association (MDA)
222 S Riverside Plaza
Suite 1500
Chicago, IL 60606
Toll-free: 1-833-275-6321 (Helpline)
E-mail: [email protected]
Website: https://www.mda.org -
Muscular Dystrophy UK
61A Great Suffolk Street
London, SE1 0BU United Kingdom
Toll-free: 0800 652 6352 (Helpline)
Telephone: (+44) 0 020 7803 4800
E-mail: [email protected]
Website: https://www.musculardystrophyuk.org/
Learn more
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
Where to Start
- Mayo Clinic has an information page on Charcot-Marie-Tooth disease type 1E.
- Genetics Home Reference (GHR) contains information on Charcot-Marie-Tooth disease type 1E. This website is maintained by the National Library of Medicine.
- Muscular Dystrophy Association has information and resources about Charcot-Marie-Tooth disease type 1E. Please click on the link to access this resource.
- The National Human Genome Research Institute's (NHGRI) website has an information page on this topic. NHGRI is part of the National Institutes of Health and supports research on the structure and function of the human genome and its role in health and disease.
- The National Institute of Neurological Disorders and Stroke (NINDS) (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.
In-Depth Information
- GeneReviews provides current, expert-authored, peer-reviewed, full-text articles describing the application of genetic testing to the diagnosis, management, and genetic counseling of patients with specific inherited conditions.
- Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
- The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
- Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine.
- Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
- PubMed is a searchable database of medical literature and lists journal articles that discuss Charcot-Marie-Tooth disease type 1E. Click on the link to view a sample search on this topic.
References
- Bird TD. Charcot-Marie-Tooth Neuropathy Type 1. GeneReviews. March 26, 2015; https://www.ncbi.nlm.nih.gov/books/NBK1205/.
- CHARCOT-MARIE-TOOTH DISEASE AND DEAFNESS. OMIM. January 2012; https://www.omim.org/entry/118300.
- Divakara Kedlaya, MBBS. Charcot-Marie-Tooth Disease. Medscape Reference. November 2014; https://emedicine.medscape.com/article/1232386-overview.