SMN Meaning and
Definition
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SMN stands for "Survival Motor Neuron". It is a term commonly used in the field of medical sciences, particularly in neurology and genetics. SMN refers to a specific gene, known as the Survival Motor Neuron 1 (SMN1) gene, that plays a crucial role in the development and maintenance of motor neurons in the spinal cord.
Motor neurons are nerve cells responsible for transmitting signals from the brain to muscles throughout the body, enabling movement and coordination. Defects or mutations in the SMN1 gene can disrupt the production of a protein called survival motor neuron (SMN) protein, which is essential for the survival and proper functioning of motor neurons.
Such mutations in the SMN1 gene are primarily associated with a genetic disorder known as spinal muscular atrophy (SMA). Spinal muscular atrophy is a rare and potentially life-threatening condition characterized by progressive muscle weakness and wasting. The severity of SMA can vary widely, ranging from mild weakness to severe disability and early death.
Due to the crucial role of the SMN1 gene in motor neuron development, SMN has become an important acronym in medical research and clinical practice. It is often used when discussing genetic testing, treatment options, and advancements in the understanding of spinal muscular atrophy and related conditions affecting the motor neuron system.
Common Misspellings for SMN
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