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The age of onset and the severity of symptoms form the basis of the traditional classification of spinal muscular atrophy into a number of types. [ 4 ] Spinal muscular atrophy is due to an abnormality ( mutation ) in the SMN1 gene [ 1 ] [ 2 ] which encodes SMN , a protein necessary for survival of motor neurons . [ 8 ]
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.
Distal spinal muscular atrophy type 1 (DSMA1) Spinal muscular atrophy with respiratory distress type 1 (SMARD1) Distal hereditary motor neuronopathy type 6 (DHMN6) 604320: IGHMBP2: 11q13.3: Autosomal recessive: Affects mainly infant boys, similar to SMA type 1 but with diaphragmatic paralysis Distal spinal muscular atrophy type 2 (DSMA2)
Superior mesenteric artery compressing the duodenum, featuring the superior mesenteric artery syndrome. Superior mesenteric artery (SMA) syndrome is a gastro-vascular disorder in which the third and final portion of the duodenum is compressed between the abdominal aorta (AA) and the overlying superior mesenteric artery.
Delayed onset muscle soreness (DOMS) is the pain and stiffness felt in muscles after unaccustomed or strenuous exercise. The soreness is felt most strongly 24 to 72 hours after the exercise. [1] [2]: 63 It is thought to be caused by eccentric (lengthening) exercise, which causes small-scale damage (microtrauma) to the muscle fibers. After such ...
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The U.S. Geological Survey said that more than 5.3 million people in California were under a tsunami warning, the Associated Press reported, and that more than 1.3 million people lived close ...