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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]
In the United States and Canada, the term motor neuron disease usually refers to the group of disorders while amyotrophic lateral sclerosis is frequently called Lou Gehrig's disease. [ 2 ] [ 5 ] [ 23 ] In the United Kingdom and Australia, the term motor neuron(e) disease is used for amyotrophic lateral sclerosis, [ 3 ] [ 4 ] although is not ...
Amyotrophic Lateral Sclerosis, Multiple Sclerosis Primary lateral sclerosis ( PLS ) is a very rare neuromuscular disease characterized by progressive muscle weakness in the voluntary muscles . PLS belongs to a group of disorders known as motor neuron diseases .
Amyotrophic lateral sclerosis (ALS), commonly referred to Lou Gehrig's disease, is a rare neurodegenerative disorder characterized by the gradual loss of both upper motor neurons (UMNs) and lower motor neurons (LMNs). [41] Although initial symptoms may vary, most patients develop skeletal muscle weakness that progresses to involve the entire ...
Lateral medullary (Wallenberg) syndrome; Learning disabilities; Leigh's disease; Lennox–Gastaut syndrome; Lesch–Nyhan syndrome; Leukodystrophy; Leukoencephalopathy with vanishing white matter; Lewy body dementia; Lissencephaly; Locked-in syndrome; Lou Gehrig's disease – see Amyotrophic lateral sclerosis; Lumbar disc disease; Lumbar hernia ...
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 ...
Disuse atrophy of the muscle occurs i.e., shrinkage of muscle fibre finally replaced by fibrous tissue (fibrous muscle) Other causes include Guillain–Barré syndrome, West Nile fever, C. botulism, polio, and cauda equina syndrome; another common cause of lower motor neuron degeneration is amyotrophic lateral sclerosis.