Spinal muscular atrophy (SMA) type 1 is the most common and most severe form of SMA. Symptoms typically begin in the first 6 months of life. Life expectancy is less than 2 years without treatment, but ...
Adult-onset spinal muscular atrophy (SMA) is a rare neuromuscular disorder that primarily affects the motor neurons in the spinal cord, leading to muscle weakness and atrophy. SMA is part of a group ...
Spinal bulbar muscular atrophy (SBMA) causes a loss of motor neurons in the spinal cord and brainstem. It mainly affects facial and swallowing muscles and the muscles in the arms and legs. Previously, ...
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