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Distal hereditary motor neuronopathies (distal HMN, dHMN), sometimes also called distal hereditary motor neuropathies, are a genetically and clinically heterogeneous group of motor neuron diseases that result from genetic mutations in various genes and are characterized by degeneration and loss of motor neuron cells in the anterior horn of the spinal cord and subsequent muscle atrophy.
Patients with hereditary motor and sensory neuropathies are diagnosed through a physical evaluation that looks for muscle atrophy, weakness, and sensory responses. [3] In addition to this, electromyography and motor nerve conduction tests can help clinicians decide what type of motor and sensory neuropathy it is and how severe the disease is.
Distal spinal muscular atrophy type 2 (DSMA2), also known as Jerash type distal hereditary motor neuropathy (HMNJ), is a very rare childhood-onset genetic disorder characterised by progressive muscle wasting affecting lower and subsequently upper limbs.
Distal spinal muscular atrophy with vocal cord paralysis. Distal hereditary motor neuronopathy type 7A (DHMN7A) Harper–Young myopathy; 158580: SLC5A7: 2q12.3: Autosomal dominant: Adult-onset with vocal cord paralysis, very rare Congenital distal spinal muscular atrophy. Distal hereditary motor neuronopathy type 8 (DHMN8) 600175: TRPV4: 12q24 ...
Congenital distal spinal muscular atrophy (cDSMA), also known as distal hereditary motor neuropathy (or neuronopathy) type VIII (dHMN8), is a hereditary medical condition characterized by muscle wasting (), particularly of distal muscles in legs and hands, and by early-onset contractures (permanent shortening of a muscle or joint) of the hip, knee, and ankle.
In general, distal hereditary motor neuropathies affect the axons of distal motor neurons and are characterized by progressive weakness and atrophy of muscles of the extremities. [1] It is common for them to be called "spinal forms of Charcot-Marie-Tooth disease (CMT)", because the diseases are closely related in symptoms and genetic cause.
Hereditary motor and sensory neuropathy with proximal dominance (HMSN-P) is an autosomal dominant neurodegenerative disorder that is defined by extensive involuntary and spontaneous muscle contractions, asthenia, and atrophy with distal sensory involvement following. The disease starts presenting typically in the 40s and is succeeded by a slow ...
20589 Ensembl ENSG00000132740 ENSMUSG00000024831 UniProt P38935 P40694 RefSeq (mRNA) NM_002180 NM_009212 RefSeq (protein) NP_002171 n/a Location (UCSC) Chr 11: 68.9 – 68.94 Mb Chr 19: 3.31 – 3.33 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse DNA-binding protein SMUBP-2, also known as immunoglobulin helicase μ-binding protein 2 (IGHMBP2) and cardiac transcription factor 1 ...