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ALS is a motor neuron disease, which is a group of neurological disorders that selectively affect motor neurons, the cells that control voluntary muscles of the body. [3] Other motor neuron diseases include primary lateral sclerosis (PLS), progressive muscular atrophy (PMA), progressive bulbar palsy , pseudobulbar palsy , and monomelic ...
Those that affect children tend to be inherited or familial, and their symptoms are either present at birth or appear before learning to walk. Those that affect adults tend to appear after age 40. [2] The clinical course depends on the specific disease, but most progress or worsen over the course of months. [6]
A score of 0 on a question would indicate no function while a score of 4 would indicate full function. [4] [5] This scale has been useful for doctors in diagnosing patients, measuring disease progression and also for researchers when selecting patients for a study and measuring the potential effects of a clinical trial. [4] [6]
A study introduced the SOD1/GFP transgenic zebra-fish to study that specific gene on the development and occurrence of ALS in the fish, and how can that be used in testing potential therapeutic molecules. [7] All the previous models are considered simple, and save time and money due to their short lifespan and small and simple body structure. [4]
[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]
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.
Back in the 1450s, when the Bible became the first major work printed in Europe with moveable metal type, Johannes Gutenberg was a man with a plan. The German inventor decided to make the most of ...
Thus the axon undergoes complete fragmentation. The rate of degradation is dependent on the type of injury and is also slower in the CNS than in the PNS. Another factor that affects degradation rate is the diameter of the axon: larger axons require a longer time for the cytoskeleton to degrade and thus take a longer time to degenerate.