Presentation
Apart from the typical CMT phenotype (distal muscle weakness and atrophy, sensory loss, frequent pes cavus foot deformity), patients commonly present delayed motor development, vocal cord paresis, mild sensory loss, abolished deep tendon reflexes, and [orpha.net]
Acronym CMT4A Synonyms Charcot-Marie-Tooth disease demyelinating autosomal recessive, type 4A Charcot-Marie-Tooth disease neuropathy type 4A Keywords Any medical or genetic information present in this entry is provided for research, educational and informational [uniprot.org]
The majority of affected children present with scoliosis (curvature of the spine) between ages 2 and 10 years. Slow, progressive CMT symptoms such as muscle weakness and numbness usually manifest in the first decade or at adolescence. [charcot-marie-toothnews.com]
Each neuromuscular syndrome is presented clinically as a case study, accompanied by text reviewing different molecular defects, DNA research and differential diagnosis. [euro-libris.ro]
Entire Body System
- Developmental Delay
Motor delay MedGen UID: 381392 •Concept ID: C1854301 • Finding A type of Developmental delay characterized by a delay in acquiring motor skills. [ncbi.nlm.nih.gov]
Neurologic
- Hyporeflexia
Hyporeflexia MedGen UID: 195967 •Concept ID: C0700078 • Finding Reduction of neurologic reflexes such as the knee-jerk reaction. [ncbi.nlm.nih.gov]
- Areflexia
Areflexia MedGen UID: 115943 •Concept ID: C0234146 • Finding A finding indicating the complete absence of neurological reflexes. [ncbi.nlm.nih.gov]
- Delayed Milestone
Symptoms are severe, including delayed motor milestones and nerve conduction velocities of 10 m/sec or less, which begin during infancy or early childhood. [charcot-marie-toothnews.com]
Treatment
The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment. [orpha.net]
It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice. [uniprot.org]
It does not provide medical advice, diagnosis, or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. [charcot-marie-toothnews.com]
Key points for each genetic disease are identified to suggest treatment, when available, or the main clinical exams useful in follow-up of patients. [euro-libris.ro]
Prognosis
PMID: 26848201Free PMC Article Prognosis Kabzińska D, Kotruchow K, Cegielska J, Hausmanowa-Petrusewicz I, Kochański A Acta Biochim Pol 2014;61(4):739-44. [ncbi.nlm.nih.gov]
Etiology
PMID: 20512157Free PMC Article Etiology Jiang H, Guo C, Xie J, Pan J, Huang Y, Li M, Guo Y BMC Neurol 2021 Mar 2;21(1):96. doi: 10.1186/s12883-021-02093-z. [ncbi.nlm.nih.gov]
Epidemiology
Epidemiologic Study of Charcot-Marie-Tooth Disease: A Systematic Review. Neuroepidemiology. 2016;46(3):157-65. doi: 10.1159/000443706. Epub 2016 Feb 6. Review. [ghr.nlm.nih.gov]
Prevention
Mutations in EGR2 result in an abnormal protein that is unable to bind to the DNA, preventing the expression of genes involved in myelin production. This results in loss of myelin and impaired nerve signal transmission. [charcot-marie-toothnews.com]