Association of Copy Numbers of Survival Motor Neuron Gene 2 and Neuronal Apoptosis Inhibitory Protein Gene With the Natural History in a Chinese Spinal Muscular Atrophy Cohort

Abstract excerpt

We evaluated survival motor neuron 2 (SMN2) and neuronal apoptosis inhibitory protein (NAIP) gene copy distribution and the association of copy number with survival in 232 Chinese spinal muscular atrophy (SMA) patients. The SMN2 and NAIP copy numbers correlated positively with the median onset age (r = 0.72 and 0.377). The risk of death for patients with fewer copies of SMN2 or NAIP was much higher than for those...

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