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Metabolic myopathies are myopathies that result from defects in biochemical metabolism that primarily affect muscle. They are generally genetic defects ( inborn errors of metabolism ) that interfere with the ability to create energy, causing a low ATP reservoir within the muscle cell.
Symptoms of this muscle toxicity include combinations of cramping, weakness, aching or tenderness; and are often experienced in the quadriceps, pectoral, biceps, low back, or abdominal region. Symptoms tend to worsen with muscle exercise, and often continue after a patient is removed from statin therapy. [1]
There is an increased risk that statin (cholesterol-reducing drugs) will cause myopathy (muscle weakness) in individuals with MADD. [10] Anesthesia has the potential to cause malignant hyperthermia, an uncontrolled increase in body temperature, and permanent muscle damage in patients with MADD. Individuals with MADD are advised to notify their ...
In medicine, myopathy is a disease of the muscle [1] in which the muscle fibers do not function properly. Myopathy means muscle disease (Greek : myo- muscle + patheia -pathy : suffering). This meaning implies that the primary defect is within the muscle, as opposed to the nerves ("neuropathies" or "neurogenic" disorders) or elsewhere (e.g., the ...
Glycogen storage disease type V (GSD5, GSD-V), [1] also known as McArdle's disease, [2] is a metabolic disorder, one of the metabolic myopathies, more specifically a muscle glycogen storage disease, caused by a deficiency of myophosphorylase. [3] [4] Its incidence is reported as one in 100,000, roughly the same as glycogen storage disease type ...
Distal muscular dystrophy, also called distal myopathy, is essentially any muscle disease that preferentially affects the hands and/or feet, a much less common pattern than proximal muscle weakness. Late adult-onset type 1; Late adult-onset type 2a; Late adult-onset type 2b; Early adult-onset type 1; Early adult-onset type 2; Early adult-onset ...
Symptoms are most often exercise-induced, but fasting, a high-fat diet, exposure to cold temperature, sleep deprivation, or infection (especially febrile illness) can also provoke this metabolic myopathy. In a minority of cases, disease severity can be exacerbated by three life-threatening complications resulting from persistent rhabdomyolysis ...
Other symptoms are nonspecific and result either from the consequences of muscle tissue breakdown or from the condition that originally led to the muscle breakdown. [ 3 ] [ 4 ] [ 10 ] Release of the components of muscle tissue into the bloodstream causes electrolyte disturbances, which can lead to nausea , vomiting , confusion , coma or ...