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Other motor neuron diseases

In addition to ALS, there are many other motor neuron diseases, which are explained briefly below.

Spinal Muscular Atrophy (SMA)

What is 5q-associated spinal muscular atrophy?

5q-associated spinal muscular atrophy (SMA) is the most common motor neuron disease in childhood and often begins before or during early motor development. SMA underlies a genetic mutation in the SMN1 gene and it is inherited. SMA underlies a genetic mutation in the SMN1 gene and it is inherited. In the case of SMA, the 2nd motoneuron (lower) in the spinal cord is primarily affected, resulting in flaccid paralysis.


Spinobulbar Muscular
Atrophy Kennedy Type (SBMA)

What is spinobulbar muscular atrophy type Kennedy?

Spinobulbar muscular atrophy type Kennedy (SBMA) is a rare disorder underlying a mutation in the androgen receptor gene. SBMA affects the 2nd motoneuron (lower) in the spinal cord; accordingly, flaccid paralysis and muscle wasting occur.

Hereditary Spastic Spinal Paralysis (HSP)

What is Hereditary Spastic Spinal Paralysis?

Hereditary spastic spinal paralysis (HSP), also known as spastic paraplegia or Strümpell-Lorrain’s disease, represents a group of disorders with damage to the long processes of the first MN (upper) in the cortex of the motor cortex. The common main symptom is “spastic paraparesis” (spastic paralysis of the legs). HSP is most likely genetic, but not all genetic alterations are yet known, so the location of the genetic alteration cannot always be revealed. The pure (uncomplicated) form essentially results in spasticity of the legs in young adulthood, there is then often a mutation in the SPG4 gene. In the complex (complicated) forms, on the other hand, there may be various additional symptoms such as coordination disorders, speech disorders, cognitive disorders or other symptoms.


For diagnosis and therapy of the motor neuron diseases, we offer individual consultation in the respective special outpatient clinics of the MND-Net. If you need assistance in finding a connection close to your home, please contact us.