Amyotrophic lateral sclerosis 1

Causes

Is there a genetic predisposition or cause of amyotrophic lateral sclerosis?

There are two types of amyotrophic lateral sclerosis (ALS): acquired and familial. People who have familial ALS develop the disease because they have inherited genetic changes that cause the disease. About 5-10% of ALS is familial. Most people who have ALS have the acquired type, meaning that it does not seem to be caused by a single genetic change and may be the result of environmental and other factors.

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