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Myotonia congenita is a congenital neuromuscular channelopathy that affects skeletal muscles (muscles used for movement). It is a genetic disorder.The hallmark of the disease is the failure of initiated contraction to terminate, often referred to as delayed relaxation of the muscles and rigidity. [1]
Myotonia tends to be more prominent in DM1 compared to DM2. [5] Other DM1 manifestations include problems with executive function (e.g., organization, concentration, word-finding) and hypersomnia. [5] Abnormalities in the electrical activity of the heart are common in DM1, manifesting as arrhythmias or conduction blocks. [2]
Limb–girdle muscular dystrophy (LGMD) is a genetically heterogeneous group of rare muscular dystrophies that share a set of clinical characteristics. [7] It is characterised by progressive muscle wasting which affects predominantly hip and shoulder muscles. [8]
Myotonia is the defining symptom of many channelopathies (diseases of ion channel transport) such as myotonia congenita, paramyotonia congenita and myotonic dystrophy. [3] [4] Brody disease (a disease of ion pump transport) has symptoms similar to myotonia congenita, however, the delayed muscle relaxation is pseudo-myotonia as the EMG is normal ...
Potassium-aggravated myotonia is a rare genetic disorder that affects skeletal muscle. [2] Beginning in childhood or adolescence, people with this condition experience bouts of sustained muscle tensing ( myotonia ) that prevent muscles from relaxing normally.
The Erb family foundation's $7.5 million gift has a 1:1 philanthropic match, which means Detroit PBS must raise an extra $7.5 million to match the gift — plus an additional $5 million to reach ...
NMT is a diverse disorder. As a result of muscular hyperactivity, patients may present with muscle cramps, stiffness, myotonia-like symptoms (slow relaxation), associated walking difficulties, hyperhidrosis (excessive sweating), myokymia (quivering of a muscle), fasciculations (muscle twitching), fatigue, exercise intolerance, myoclonic jerks and other related symptoms.
Peter Emil Becker (23 November 1908 – 7 October 2000) was a German neurologist, psychiatrist and geneticist. [1] He is remembered for his studies of muscular dystrophies. Becker's muscular dystrophy (OMIM 300376) and Becker myotonia (OMIM 255700) are named after him.