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Amyotrophic lateral sclerosis (ALS), also known as motor neurone disease (MND) or (in the United States) Lou Gehrig's disease (LGD), is a rare, terminal neurodegenerative disorder that results in the progressive loss of both upper and lower motor neurons that normally control voluntary muscle contraction. [3]
[4] [5] ALS has an oligogenic mode of inheritance, meaning that mutations in two or more genes are required to cause disease. [6] C9orf72 is the most common gene associated with ALS, causing 40% of familial cases of ALS, as well as a small percentage of sporadic cases; [7] it also causes about 25% of familial cases of frontotemporal dementia. [6]
[1] [2] They include amyotrophic lateral sclerosis (ALS), [3] [4] progressive bulbar palsy (PBP), pseudobulbar palsy, progressive muscular atrophy (PMA), primary lateral sclerosis (PLS), spinal muscular atrophy (SMA) and monomelic amyotrophy (MMA), as well as some rarer variants resembling ALS. Motor neuron diseases affect both children and ...
Lytico-bodig (also Lytigo-bodig [1]) disease, Guam disease, or amyotrophic lateral sclerosis-parkinsonism-dementia complex (ALS-PDC) [2] is a neurodegenerative disease of uncertain etiology endemic to the Chamorro people of the island of Guam in Micronesia. Lytigo and bodig are Chamorro language words for two different manifestations of the ...
Articles relating to amyotrophic lateral sclerosis (ALS), also known as motor neurone disease (MND) or Lou Gehrig's disease. It is a specific disease which causes the death of neurons controlling voluntary muscles. ALS is characterized by stiff muscles, muscle twitching, and gradually worsening weakness due to muscles decreasing in size.
The cause of PBP is unknown. One form of PBP is found to occur within patients that have a CuZn-superoxide dismutase (SOD1) mutation. [7] Progressive bulbar palsy patients that have this mutation are classified with FALS patients, Familial ALS (FALS) accounts for about 5%-10% of all ALS cases and is caused by genetic factors.