Jokela type spinal muscular atrophy | |
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Other names | Late-onset spinal motor neuronopathy, LOSMoN; Spinal muscular atrophy, Jokela type (SMAJ) |
The disease is common in North Karelia |
Jokela type spinal muscular atrophy (SMAJ), also known as late-onset spinal motor neuronopathy (LOSMoN), is an ultra-rare neuromuscular disorder characterized by muscle twitches and cramps.[1] The symptoms appear in adulthood and gradually progress. The disease is caused by a mutation in the CHCHD10 gene[2] and is inherited in an autosomal dominant pattern.[1] It was first described by the Finnish neurologist Manu Jokela in 2011.