Charcot-Marie-Tooth Disease Type 2B

Common Name(s)

Charcot-Marie-Tooth Disease Type 2B, Distal hereditary motor neuronopathy type 2B

Charcot-Marie-Tooth disease type 2B (CMT2B) affects the peripheral nerves, the nerves running from outside the brain and spine. Common signs and symptoms include slowly progressive weakness and numbness in the feet, lower leg muscles, hands, and forearms. This type of CMT is also associated with the formation of ulcers in the hands and feet. Symptoms may start in childhood to early adulthood, although later onset (>50 years) has also been described. Symptoms of CMT2B vary but tend to be similar to that of CMT type 1. CMT2B is caused by changes in the RAB7A gene. It is inherited in an autosomal dominant fashion.
 

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Advocacy and Support Organizations

 

Condition Specific Organizations

Following organizations serve the condition "Charcot-Marie-Tooth Disease Type 2B" for support, advocacy or research.

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Scientific Literature

Articles from the PubMed Database

Research articles describe the outcome of a single study. They are the published results of original research.
The terms "Charcot-Marie-Tooth Disease Type 2B" returned 4 free, full-text research articles on human participants. First 3 results:

Charcot-Marie-Tooth type 2B disease-causing RAB7A mutant proteins show altered interaction with the neuronal intermediate filament peripherin.
 

Author(s): Laura Cogli, Cinzia Progida, Claire L Thomas, Bradley Spencer-Dene, Claudia Donno, Giampietro Schiavo, Cecilia Bucci

Journal: Acta Neuropathol.. 2013 Feb;125(2):257-72.

 

Charcot-Marie-Tooth type 2B (CMT2B) is a peripheral ulcero-mutilating neuropathy caused by four missense mutations in the rab7a gene. CMT2B is clinically characterized by prominent sensory loss, distal muscle weakness leading to muscle atrophy, high frequency of foot ulcers and infections ...

Last Updated: 21 Jan 2013

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Functional characterization of Rab7 mutant proteins associated with Charcot-Marie-Tooth type 2B disease.
 

Author(s): Maria Rita Spinosa, Cinzia Progida, Azzurra De Luca, Anna Maria Rosaria Colucci, Pietro Alifano, Cecilia Bucci

Journal: J. Neurosci.. 2008 Feb;28(7):1640-8.

 

Charcot-Marie-Tooth (CMT) type 2 neuropathies are a group of autosomal-dominant axonal disorders genetically and clinically heterogeneous. In particular, CMT type 2B (CMT2B) neuropathies are characterized by severe sensory loss, often complicated by infections, arthropathy, and amputations. ...

Last Updated: 14 Feb 2008

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Mutilating neuropathic ulcerations in a chromosome 3q13-q22 linked Charcot-Marie-Tooth disease type 2B family.
 

Author(s): P De Jonghe, V Timmerman, D FitzPatrick, P Spoelders, J J Martin, C Van Broeckhoven

Journal: J. Neurol. Neurosurg. Psychiatr.. 1997 Jun;62(6):570-3.

 

Charcot-Marie-Tooth disease type 2 (CMT2) or hereditary motor and sensory neuropathy type II (HMSN II) is an inherited axonal neuropathy of the peripheral nervous system. Three autosomal dominant CMT2 loci have been located on chromosomes 1p35-p36 (CMT2A), 3q13-q22 (CMT2B), and 7p14 ...

Last Updated: 31 Jul 1997

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Reviews from the PubMed Database

Review articles summarize what is currently known about a disease. They discuss research previously published by others.
The terms "Charcot-Marie-Tooth Disease Type 2B" returned 0 free, full-text review articles on human participants.

 
 
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Clinical Trial Information This information is provided by ClinicalTrials.gov

Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford
 

Status: Recruiting

Condition Summary: Rare Disorders; Undiagnosed Disorders; Disorders of Unknown Prevalence; Cornelia De Lange Syndrome; Prenatal Benign Hypophosphatasia; Perinatal Lethal Hypophosphatasia; Odontohypophosphatasia; Adult Hypophosphatasia; Childhood-onset Hypophosphatasia; Infantile Hypophosphatasia; Hypophosphatasia; Kabuki Syndrome; Bohring-Opitz Syndrome; Narcolepsy Without Cataplexy; Narcolepsy-cataplexy; Hypersomnolence Disorder; Idiopathic Hypersomnia Without Long Sleep Time; Idiopathic Hypersomnia With Long Sleep Time; Idiopathic Hypersomnia; Kleine-Levin Syndrome; Kawasaki Disease; Leiomyosarcoma; Leiomyosarcoma of the Corpus Uteri; Leiomyosarcoma of the Cervix Uteri; Leiomyosarcoma of Small Intestine; Acquired Myasthenia Gravis; Addison Disease; Hyperacusis (Hyperacousis); Juvenile Myasthenia Gravis; Transient Neonatal Myasthenia Gravis; Williams Syndrome; Lyme Disease; Myasthenia Gravis; Marinesco Sjogren Syndrome(Marinesco-Sjogren Syndrome); Isolated Klippel-Feil Syndrome; Frasier Syndrome; Denys-Drash Syndrome; Beckwith-Wiedemann Syndrome; Emanuel Syndrome; Isolated Aniridia; Beckwith-Wiedemann Syndrome Due to Paternal Uniparental Disomy of Chromosome 11; Beckwith-Wiedemann Syndrome Due to Imprinting Defect of 11p15; Beckwith-Wiedemann Syndrome Due to 11p15 Translocation/Inversion; Beckwith-Wiedemann Syndrome Due to 11p15 Microduplication; Beckwith-Wiedemann Syndrome Due to 11p15 Microdeletion; Axenfeld-Rieger Syndrome; Aniridia-intellectual Disability Syndrome; Aniridia - Renal Agenesis - Psychomotor Retardation; Aniridia - Ptosis - Intellectual Disability - Familial Obesity; Aniridia - Cerebellar Ataxia - Intellectual Disability; Aniridia - Absent Patella; Aniridia; Peters Anomaly - Cataract; Peters Anomaly; Potocki-Shaffer Syndrome; Silver-Russell Syndrome Due to Maternal Uniparental Disomy of Chromosome 11; Silver-Russell Syndrome Due to Imprinting Defect of 11p15; Silver-Russell Syndrome Due to 11p15 Microduplication; Syndromic Aniridia; WAGR Syndrome; Wolf-Hirschhorn Syndrome; 4p16.3 Microduplication Syndrome; 4p Deletion Syndrome, Non-Wolf-Hirschhorn Syndrome; Autosomal Recessive Stickler Syndrome; Stickler Syndrome Type 2; Stickler Syndrome Type 1; Stickler Syndrome; Mucolipidosis Type 4; X-linked Spinocerebellar Ataxia Type 4; X-linked Spinocerebellar Ataxia Type 3; X-linked Intellectual Disability - Ataxia - Apraxia; X-linked Progressive Cerebellar Ataxia; X-linked Non Progressive Cerebellar Ataxia; X-linked Cerebellar Ataxia; Vitamin B12 Deficiency Ataxia; Toxic Exposure Ataxia; Unclassified Autosomal Dominant Spinocerebellar Ataxia; Thyroid Antibody Ataxia; Sporadic Adult-onset Ataxia of Unknown Etiology; Spinocerebellar Ataxia With Oculomotor Anomaly; Spinocerebellar Ataxia With Epilepsy; Spinocerebellar Ataxia With Axonal Neuropathy Type 2; Spinocerebellar Ataxia Type 8; Spinocerebellar Ataxia Type 7; Spinocerebellar Ataxia Type 6; Spinocerebellar Ataxia Type 5; Spinocerebellar Ataxia Type 4; Spinocerebellar Ataxia Type 37; Spinocerebellar Ataxia Type 36; Spinocerebellar Ataxia Type 35; Spinocerebellar Ataxia Type 34; Spinocerebellar Ataxia Type 32; Spinocerebellar Ataxia Type 31; Spinocerebellar Ataxia Type 30; Spinocerebellar Ataxia Type 3; Spinocerebellar Ataxia Type 29; Spinocerebellar Ataxia Type 28; Spinocerebellar Ataxia Type 27; Spinocerebellar Ataxia Type 26; Spinocerebellar Ataxia Type 25; Spinocerebellar Ataxia Type 23; Spinocerebellar Ataxia Type 22; Spinocerebellar Ataxia Type 21; Spinocerebellar Ataxia Type 20; Spinocerebellar Ataxia Type 2; Spinocerebellar Ataxia Type 19/22; Spinocerebellar Ataxia Type 18; Spinocerebellar Ataxia Type 17; Spinocerebellar Ataxia Type 16; Spinocerebellar Ataxia Type 15/16; Spinocerebellar Ataxia Type 14; Spinocerebellar Ataxia Type 13; Spinocerebellar Ataxia Type 12; Spinocerebellar Ataxia Type 11; Spinocerebellar Ataxia Type 10; Spinocerebellar Ataxia Type 1 With Axonal Neuropathy; Spinocerebellar Ataxia Type 1; Spinocerebellar Ataxia - Unknown; Spinocerebellar Ataxia - Dysmorphism; Non Progressive Epilepsy and/or Ataxia With Myoclonus as a Major Feature; Spectrin-associated Autosomal Recessive Cerebellar Ataxia; Spasticity-ataxia-gait Anomalies Syndrome; Spastic Ataxia With Congenital Miosis; Spastic Ataxia - Corneal Dystrophy; Spastic Ataxia; Rare Hereditary Ataxia; Rare Ataxia; Recessive Mitochondrial Ataxia Syndrome; Progressive Epilepsy and/or Ataxia With Myoclonus as a Major Feature; Posterior Column Ataxia - Retinitis Pigmentosa; Post-Stroke Ataxia; Post-Head Injury Ataxia; Post Vaccination Ataxia; Polyneuropathy - Hearing Loss - Ataxia - Retinitis Pigmentosa - Cataract; Muscular Atrophy - Ataxia - Retinitis Pigmentosa - Diabetes Mellitus; Non-progressive Cerebellar Ataxia With Intellectual Disability; Non-hereditary Degenerative Ataxia; Paroxysmal Dystonic Choreathetosis With Episodic Ataxia and Spasticity; Olivopontocerebellar Atrophy - Deafness; NARP Syndrome; Myoclonus - Cerebellar Ataxia - Deafness; Multiple System Atrophy, Parkinsonian Type; Multiple System Atrophy, Cerebellar Type; Multiple System Atrophy; Maternally-inherited Leigh Syndrome; Machado-Joseph Disease Type 3; Machado-Joseph Disease Type 2; Machado-Joseph Disease Type 1; Lethal Ataxia With Deafness and Optic Atrophy; Leigh Syndrome; Leukoencephalopathy With Mild Cerebellar Ataxia and White Matter Edema; Leukoencephalopathy - Ataxia - Hypodontia - Hypomyelination; Leigh Syndrome With Nephrotic Syndrome; Leigh Syndrome With Leukodystrophy; Leigh Syndrome With Cardiomyopathy; Late-onset Ataxia With Dementia; Intellectual Disability-hyperkinetic Movement-truncal Ataxia Syndrome; Infection or Post Infection Ataxia; Infantile-onset Autosomal Recessive Nonprogressive Cerebellar Ataxia; Infantile Onset Spinocerebellar Ataxia; GAD Ataxia; Hereditary Episodic Ataxia; Gliadin/Gluten Ataxia; Friedreich Ataxia; Fragile X-associated Tremor/Ataxia Syndrome; Familial Paroxysmal Ataxia; Exposure to Medications Ataxia; Episodic Ataxia With Slurred Speech; Episodic Ataxia Unknown Type; Episodic Ataxia Type 7; Episodic Ataxia Type 6; Episodic Ataxia Type 5; Episodic Ataxia Type 4; Episodic Ataxia Type 3; Episodic Ataxia Type 1; Epilepsy and/or Ataxia With Myoclonus as Major Feature; Early-onset Spastic Ataxia-neuropathy Syndrome; Early-onset Progressive Neurodegeneration - Blindness - Ataxia - Spasticity; Early-onset Cerebellar Ataxia With Retained Tendon Reflexes; Early-onset Ataxia With Dementia; Childhood-onset Autosomal Recessive Slowly Progressive Spinocerebellar Ataxia; Dilated Cardiomyopathy With Ataxia; Cataract - Ataxia - Deafness; Cerebellar Ataxia, Cayman Type; Cerebellar Ataxia With Peripheral Neuropathy; Cerebellar Ataxia - Hypogonadism; Cerebellar Ataxia - Ectodermal Dysplasia; Cerebellar Ataxia - Areflexia - Pes Cavus - Optic Atrophy - Sensorineural Hearing Loss; Brain Tumor Ataxia; Brachydactyly - Nystagmus - Cerebellar Ataxia; Benign Paroxysmal Tonic Upgaze of Childhood With Ataxia; Autosomal Recessive Syndromic Cerebellar Ataxia; Autosomal Recessive Spastic Ataxia With Leukoencephalopathy; Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay; Autosomal Recessive Spastic Ataxia - Optic Atrophy - Dysarthria; Autosomal Recessive Spastic Ataxia; Autosomal Recessive Metabolic Cerebellar Ataxia; Autosomal Dominant Spinocerebellar Ataxia Due to Repeat Expansions That do Not Encode Polyglutamine; Autosomal Recessive Ataxia, Beauce Type; Autosomal Recessive Ataxia Due to Ubiquinone Deficiency; Autosomal Recessive Ataxia Due to PEX10 Deficiency; Autosomal Recessive Degenerative and Progressive Cerebellar Ataxia; Autosomal Recessive Congenital Cerebellar Ataxia Due to MGLUR1 Deficiency; Autosomal Recessive Congenital Cerebellar Ataxia Due to GRID2 Deficiency; Autosomal Recessive Congenital Cerebellar Ataxia; Autosomal Recessive Cerebellar Ataxia-pyramidal Signs-nystagmus-oculomotor Apraxia Syndrome; Autosomal Recessive Cerebellar Ataxia-epilepsy-intellectual Disability Syndrome Due to WWOX Deficiency; Autosomal Recessive Cerebellar Ataxia-epilepsy-intellectual Disability Syndrome Due to TUD Deficiency; Autosomal Recessive Cerebellar Ataxia-epilepsy-intellectual Disability Syndrome Due to KIAA0226 Deficiency; Autosomal Recessive Cerebellar Ataxia-epilepsy-intellectual Disability Syndrome; Autosomal Recessive Cerebellar Ataxia With Late-onset Spasticity; Autosomal Recessive Cerebellar Ataxia Due to STUB1 Deficiency; Autosomal Recessive Cerebellar Ataxia Due to a DNA Repair Defect; Autosomal Recessive Cerebellar Ataxia - Saccadic Intrusion; Autosomal Recessive Cerebellar Ataxia - Psychomotor Retardation; Autosomal Recessive Cerebellar Ataxia - Blindness - Deafness; Autosomal Recessive Cerebellar Ataxia; Autosomal Dominant Spinocerebellar Ataxia Due to a Polyglutamine Anomaly; Autosomal Dominant Spinocerebellar Ataxia Due to a Point Mutation; Autosomal Dominant Spinocerebellar Ataxia Due to a Channelopathy; Autosomal Dominant Spastic Ataxia Type 1; Autosomal Dominant Spastic Ataxia; Autosomal Dominant Optic Atrophy; Ataxia-telangiectasia Variant; Ataxia-telangiectasia; Autosomal Dominant Cerebellar Ataxia, Deafness and Narcolepsy; Autosomal Dominant Cerebellar Ataxia Type 4; Autosomal Dominant Cerebellar Ataxia Type 3; Autosomal Dominant Cerebellar Ataxia Type 2; Autosomal Dominant Cerebellar Ataxia Type 1; Autosomal Dominant Cerebellar Ataxia; Ataxia-telangiectasia-like Disorder; Ataxia-intellectual Disability-oculomotor Apraxia-cerebellar Cysts Syndrome; Ataxia-deafness-intellectual Disability Syndrome; Ataxia With Vitamin E Deficiency; Ataxia With Dementia; Ataxia Neuropathy Spectrum; Ataxia - Tapetoretinal Degeneration; Ataxia - Photosensitivity - Short Stature; Ataxia - Pancytopenia; Ataxia - Oculomotor Apraxia Type 1; Ataxia - Hypogonadism - Choroidal Dystrophy; Ataxia - Other; Ataxia - Genetic Diagnosis - Unknown; Acquired Ataxia; Adult-onset Autosomal Recessive Cerebellar Ataxia; Alcohol Related Ataxia; Multiple Endocrine Neoplasia; Multiple Endocrine Neoplasia Type II; Multiple Endocrine Neoplasia Type 1; Multiple Endocrine Neoplasia Type 2; Multiple Endocrine Neoplasia, Type IV; Multiple Endocrine Neoplasia, Type 3; Multiple Endocrine Neoplasia (MEN) Syndrome; Multiple Endocrine Neoplasia Type 2B; Multiple Endocrine Neoplasia Type 2A; Atypical Hemolytic Uremic Syndrome; Atypical HUS; Wiedemann-Steiner Syndrome; Breast Implant-Associated Anaplastic Large Cell Lymphoma; Autoimmune/Inflammatory Syndrome Induced by Adjuvants (ASIA); Hemophagocytic Lymphohistiocytosis; Behcet's Disease

 

Last Updated: 28 Sep 2017

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