Ads
related to: spinal muscular atrophy symptoms adults life expectancy chart for women
Search results
Results from the WOW.Com Content Network
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 ]
5q spinal muscular atrophy; Autosomal recessive proximal spinal muscular atrophy; Werdnig–Hoffmann disease / Kugelberg–Welander disease; 253300 253550 253400 271150: SMN1: 5q13.2: Autosomal recessive: Affects primarily proximal muscles in people of all ages, progressive, relatively common XLSMA: X-linked spinal muscular atrophy type 1 (SMAX1)
Symptoms of motor neuron diseases can be first seen at birth or can come on slowly later in life. Most of these diseases worsen over time; while some, such as ALS, shorten one's life expectancy, others do not. [2] Currently, there are no approved treatments for the majority of motor neuron disorders, and care is mostly symptomatic. [2]
Distal spinal muscular atrophy type 1 (DSMA1), also known as spinal muscular atrophy with respiratory distress type 1 (SMARD1), is a rare neuromuscular disorder involving death of motor neurons in the spinal cord which leads to a generalised progressive atrophy of body muscles.
The condition has been called progressive muscular atrophy (PMA), [7] spinal muscular atrophy (SMA), [7] Aran–Duchenne disease, [6] [7] Duchenne–Aran disease, [6] Aran–Duchenne muscular atrophy, [7] and Duchenne–Aran muscular atrophy. The name "spinal muscular atrophy" is ambiguous as it refers to any of various spinal muscular ...
Spinal and bulbar muscular atrophy (SBMA), popularly known as Kennedy's disease, is a rare, adult-onset, X-linked recessive lower motor neuron disease caused by trinucleotide CAG repeat expansions in exon 1 of the androgen receptor (AR) gene, which results in both loss of AR function and toxic gain of function.
The first symptoms include muscle cramps and muscle twitches affecting the upper and lower limbs. They appear usually after age of 40. The disease is slowly progressive with adult onset and results in weakness and mild muscle atrophy. [1] [3] The disease does not affect life expectancy. [1]
Distal hereditary motor neuronopathies (distal HMN, dHMN), sometimes also called distal hereditary motor neuropathies, are a genetically and clinically heterogeneous group of motor neuron diseases that result from genetic mutations in various genes and are characterized by degeneration and loss of motor neuron cells in the anterior horn of the spinal cord and subsequent muscle atrophy.
Ads
related to: spinal muscular atrophy symptoms adults life expectancy chart for women