SMA (Spinal Muscular Atrophy): What It Is, Symptoms & Types
Spinal muscular atrophy (SMA) is a genetic condition that causes worsening muscle weakness. There are five subtypes, which range in severity and age of onset. There’s no cure for SMA, but certain therapies and medications can help manage symptoms.
Spinal muscular atrophy - Wikipedia
Spinal muscular atrophy (SMA) is a rare neuromuscular disorder that results in the loss of motor neurons and progressive muscle wasting. [3] [4] [5] It is usually diagnosed in infancy or early childhood and if left untreated it is the most common genetic cause of infant death. [6]
Spinal Muscular Atrophy | National Institute of Neurological …
What is spinal muscular atrophy? Spinal muscular atrophy (SMA) refers to a group of hereditary diseases which affect motor neurons. Motor neurons are specialized nerve cells in the brain and spinal cord that control movement in the arms, legs, face, chest, throat, and tongue, as well as skeletal muscle activity, including muscles used for ...
Spinal Muscular Atrophy: Causes, Symptoms, and Treatment
Apr 8, 2023 · Spinal muscular atrophy (SMA) most often affects babies and children and makes it hard for them to use their muscles. When your child has SMA, there's a breakdown of the nerve cells in the...
Spinal Muscular Atrophy (SMA) - Diseases - Muscular Dystrophy Association
What is spinal muscular atrophy? Spinal muscular atrophy (SMA) is a genetic disease affecting the central nervous system, peripheral nervous system, and voluntary muscle movement (skeletal muscle). Most of the nerve cells that control muscles are located in the spinal cord, which accounts for the word spinal in the name of the disease.
Spinal Muscular Atrophy (SMA) - Johns Hopkins Medicine
Spinal muscular atrophy (SMA) is a disorder affecting the motor neurons—nerve cells that control voluntary muscle movement. These cells are located in the spinal cord. Because the muscles cannot respond to signals from the nerves, they atrophy — weaken and shrink — from inactivity. One in every 6,000 babies is born with SMA.
Spinal Muscle Atrophy - StatPearls - NCBI Bookshelf
Jul 17, 2023 · Spinal muscular atrophy is an inherited autosomal recessive disease of a varying phenotype that is characterized by progressive muscle weakness, reduced tone with associated destruction of alpha motor units.
Spinal muscular atrophy (SMA) - NHS
Find out about spinal muscular atrophy (SMA) including the symptoms, types, causes, how it's diagnosed and the treatment and support available.
Spinal Muscular Atrophy (SMA): Types, Symptoms, Causes
Sep 20, 2023 · Spinal muscular atrophy (SMA) is a genetic disease that causes muscle weakness, making it difficult to stand, walk, move the arms and head, and even breathe or swallow. The symptoms are caused by a loss of nerve cells in the spinal cord and brain stem. It is a progressive motor neuron disease.
Spinal Muscular Atrophy - Rare Disease Advisor
Spinal muscular atrophy (SMA) is an autosomal recessive neurodegenerative disorder that leads to progressive weakness and loss of movement.