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  • Title: Beyond Motor Neurons in Spinal Muscular Atrophy: A Focus on Neuromuscular Junction.
    Author: Torri F, Mancuso M, Siciliano G, Ricci G.
    Journal: Int J Mol Sci; 2024 Jul 03; 25(13):. PubMed ID: 39000416.
    Abstract:
    5q-Spinal muscular atrophy (5q-SMA) is one of the most common neuromuscular diseases due to homozygous mutations in the SMN1 gene. This leads to a loss of function of the SMN1 gene, which in the end determines lower motor neuron degeneration. Since the generation of the first mouse models of SMA neuropathology, a complex degenerative involvement of the neuromuscular junction and peripheral axons of motor nerves, alongside lower motor neurons, has been described. The involvement of the neuromuscular junction in determining disease symptoms offers a possible parallel therapeutic target. This narrative review aims at providing an overview of the current knowledge about the pathogenesis and significance of neuromuscular junction dysfunction in SMA, circulating biomarkers, outcome measures and available or developing therapeutic approaches.
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