Spinal muscular atrophy (SMA) is an autosomal recessive neuromuscular disorder caused by the degeneration of alpha motor neurons of the anterior horns of the spinal cord, resulting in lower Survival Motor Neuron (SMN) protein production and leading to progressive muscle atrophy and weakness [1,2], making it a devastating neurodegenerative disease [3]. This evidence concerns the gene SMN2 and proximal spinal muscular atrophy.