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  2. Spinal muscular atrophy - Wikipedia

    en.wikipedia.org/wiki/Spinal_muscular_atrophy

    SMA 4 (Adult onset) Adulthood This denotes the adult-onset form, sometimes also classified as a late-onset SMA type 3. It occurs in approx. 5% of patients and usually manifests in the third or fourth decade of life. The symptoms consist of gradual weakening of leg muscles, which frequently makes it necessary for the patient to use walking aids.

  3. Spinal and bulbar muscular atrophy - Wikipedia

    en.wikipedia.org/wiki/Spinal_and_bulbar_muscular...

    Spinal and bulbar muscular atrophy (SBMA), popularly known as Kennedy's disease, is a rare, adult-onset, X-linked recessive lower motor neuron disease caused by trinucleotide CAG repeat expansions in exon 1 of the androgen receptor (AR) gene, which results in both loss of AR function and toxic gain of function.

  4. Spinal muscular atrophies - Wikipedia

    en.wikipedia.org/wiki/Spinal_muscular_atrophies

    Autosomal recessive proximal spinal muscular atrophy, responsible for 90-95% of cases and usually called simply spinal muscular atrophy (SMA) – a disorder associated with a genetic mutation on the SMN1 gene on chromosome 5q (locus 5q13), diagnosed predominantly in young children and in its most severe form being the most common genetic cause ...

  5. Distal hereditary motor neuronopathies - Wikipedia

    en.wikipedia.org/wiki/Distal_hereditary_motor...

    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.

  6. Hoffmann syndrome - Wikipedia

    en.wikipedia.org/wiki/Hoffmann_syndrome

    Hoffmann syndrome is a rare form of hypothyroid myopathy and is not to be confused with Werdnig-Hoffmann disease (a type of spinal muscular atrophy). It was first documented in 1897 by Johann Hoffmann. [1] It has adult-onset symptoms and is comparable to the childhood-onset Kocher–Debré–Semelaigne syndrome.

  7. Spinal disease - Wikipedia

    en.wikipedia.org/wiki/Spinal_disease

    Symptoms for spinal tumors may vary due to factors such as the type of tumor, the region of the spine, and the health of the patient. Back pain is the most common symptom and it can be a problem if the pain is severe, has a time frame that lasts longer than it would for a normal injury, and becomes worse while laying down or at rest.

  8. Distal spinal muscular atrophy type 1 - Wikipedia

    en.wikipedia.org/wiki/Distal_spinal_muscular...

    Distal spinal muscular atrophy type 1 (DSMA1), also known as spinal muscular atrophy with respiratory distress type 1 (SMARD1), is a rare neuromuscular disorder involving death of motor neurons in the spinal cord which leads to a generalised progressive atrophy of body muscles.

  9. X-linked spinal muscular atrophy type 2 - Wikipedia

    en.wikipedia.org/wiki/X-linked_spinal_muscular...

    X-linked spinal muscular atrophy type 2 (SMAX2, XLSMA), also known as arthrogryposis multiplex congenita X-linked type 1 (AMCX1), is a rare neurological disorder involving death of motor neurons in the anterior horn of spinal cord resulting in generalised muscle wasting .

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