The US Accounts for the Highest Number of Prevalent Cases of Spinal Muscular Atrophy (SMA), Finds New Report
Spinal Muscular Atrophy [SMA] is a rare hereditary neuromuscular disorder caused by Bi-allelic mutation of survival motor neuron gene 1 (SMN1). In healthy people this gene produces a protein required by the muscle controlling nerves. In the deficiency of this protein these nerve cells cannot function properly which leads to fatal muscle weakness. It is one of the most common causes of infant death and mobility impairment; the severity of diseases depends on the number of backup gene SMN2 that...
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