Late-onset spinal motor neuronopathy

Late-onset spinal motor neuronopathy
Synonym LOSMoN; Spinal muscular atrophy, Jokela type (SMAJ)
Classification and external resources
OMIM 615048
The disease is common in North Karelia.

Late-Onset Spinal Motor Neuronopathy (LOSMoN) is a slowly progressing motor neuron disease.[1] It is caused by a mutation in CHCHD10,[2] and it is inherited in an autosomally dominant pattern.[1]

Symptoms

The first symptoms include muscle cramps and muscle twitches affecting the upper and lower limbs, usually after age of 40. The disease is slowly progressive with adult-onset, and it results in weakness and mild muscle atrophy.[1][3] The disease does not reduce life expectancy.[1] However, it is difficult to differentiate the disease from a more fatal amyotrophic lateral sclerosis in diagnosis.[1]

History

The disease was first discovered in 2011.[3] It was first described by Manu Jokela, who was awarded with Young Researcher of the Year prize on 3 November 2016.[1][4] As of 2016 it has been found only in Finland.[4]

See also

References

  1. 1 2 3 4 5 6 "Uusi hitaasti etenevä motoneuronitauti löydetty Suomesta (Väitös: LL Manu Jokela, 11.12.2015, neurologia)" (in Finnish). Retrieved 3 November 2016.
  2. Penttilä, Sini; Jokela, Manu; Bouquin, Heidi; Saukkonen, Anna Maija; Toivanen, Jari; Udd, Bjarne (1 January 2015). "Late onset spinal motor neuronopathy is caused by mutation in CHCHD10". Ann. Neurol. 77 (1): 163–172. doi:10.1002/ana.24319. PMID 25428574. Retrieved 3 November 2016 via PubMed.
  3. 1 2 Viljakainen, Veera. "Perinnöllistä Late-Onset Spinal Motor Neuronopathy –motoneuronitautia aiheuttavan CHCHD10-geenin sekvensointi". www.theseus.fi (in Finnish). Retrieved 3 November 2016.
  4. 1 2 "Neurologi kuvasi uuden taudin - erityisen yleinen Pohjois-Karjalassa" (in Finnish). Retrieved 3 November 2016.

Further reading

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