Nemaline myopathy
Última actualización 18 Aug 2020
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Nemaline myopathy is a disorder that primarily affects skeletal muscles, which are muscles that the body uses for movement. People with nemaline myopathy have muscle weakness (myopathy) throughout the body, but it is typically most severe in the muscles of the face; neck; trunk; and other muscles close to the center of the body (proximal muscles), such as those of the upper arms and legs. This weakness can worsen over time. Affected individuals may have feeding and swallowing difficulties, foot deformities, abnormal curvature of the spine (scoliosis), and joint deformities (contractures). Most people with nemaline myopathy are able to walk, although some affected children may begin walking later than usual. As the condition progresses, some people may require wheelchair assistance. In severe cases, the muscles used for breathing are affected and life-threatening breathing difficulties can occur.
Descripción
Nemaline myopathy is a disorder that primarily affects skeletal muscles, which are muscles that the body uses for movement. People with nemaline myopathy have muscle weakness (myopathy) throughout the body, but it is typically most severe in the muscles of the face; neck; trunk; and other muscles close to the center of the body (proximal muscles), such as those of the upper arms and legs. This weakness can worsen over time. Affected individuals may have feeding and swallowing difficulties, foot deformities, abnormal curvature of the spine (scoliosis), and joint deformities (contractures). Most people with nemaline myopathy are able to walk, although some affected children may begin walking later than usual. As the condition progresses, some people may require wheelchair assistance. In severe cases, the muscles used for breathing are affected and life-threatening breathing difficulties can occur.
Nemaline myopathy is divided into six types. In order of decreasing severity, the types are: severe congenital, Amish, intermediate congenital, typical congenital, childhood-onset, and adult-onset. The types are distinguished by the age when symptoms first appear and the severity of symptoms; however, there is overlap among the various types. The severe congenital type is the most life-threatening. Most individuals with this type do not survive past early childhood due to respiratory failure. The Amish type solely affects the Old Order Amish population of Pennsylvania and is typically fatal in early childhood. The most common type of nemaline myopathy is the typical congenital type, which is characterised by muscle weakness and feeding problems beginning in infancy. Most of these individuals do not have severe breathing problems and can walk unassisted. People with the childhood-onset type usually develop muscle weakness in adolescence. The adult-onset type is the mildest of all the various types. People with this type usually develop muscle weakness between ages 20 and 50.
Patrones de herencia
The source lists the following possible inheritance patterns: Autosomal recessive; Autosomal dominant. More than one pattern can apply in different cases.
Related genes
Otros nombres
Myopathies, nemaline
Myopathy, nemaline
Nemaline body disease
Nemaline rod disease
Rod body disease
Rod myopathy
Rod-body myopathy
Related patient information and medicines
Patient information leaflet
Síndrome de realimentación
Síndrome de realimentación was first described in Far East prisoners after the second world war when they developed heart failure after starting to eat again after a prolonged period of starvation. What is refeeding syndrome. Síndrome de realimentación es un dangerous y life threatening shift of fluids and body salts (electrolytes) that can occur when.
Patient information leaflet
Distrofia muscular
There are also diferencias as to which parts of the body are affected. Different types of MD affect different muscle areas (known as muscle groups) of the body - see the picture below. The muscle weakness itself may be mild, moderate or severe. What else ... There are other medical conditions which cause muscle weakness. These are: Conditions.
Patient information leaflet
¿Puedo tomar Simvastatina y Vitamina B12 juntos?
Por qué sucede esto Simvastatin es a cholesterol-lowering medication (statin) processed primarily by the liver, while vitamina B12 is a water-soluble vitamin absorbed in the gut and used for nerve and blood health. Problemas musculares (Miopatía/Rabdomiólisis) Contact your doctor immediately if you experience unexplained muscle pain, tenderness, or.
Patient information leaflet
¿Puedo tomar Amlodipina y Simvastatina juntos?
Taking these two medicines together can increase the amount of simvastatin in your blood. This makes you more likely to experience side effects, particularly muscle pain, tenderness, or weakness (a condition called myopathy). In rare cases, this can lead to a serious condition called rhabdomyolysis, which can cause kidney damage. Why this happens.
Patient information leaflet
¿Puedo tomar Amlodipina y Atorvastatina juntos?
Taking amlodipine and atorvastatin together can increase the amount of atorvastatin in your blood. This may increase the risk of side effects, particularly muscle pain, tenderness, or weakness (a condition llamado myopathy). In rare cases, this can lead to a more serious muscle breakdown called rhabdomyolysis. Amlodipine and atorvastatin can.
Patient information leaflet
¿Puedo tomar magnesio y simvastatina juntos?
Stop taking it immediately and contact your doctor if you think you are pregnant. Problemas musculares (Miopatía/Rabdomiólisis) - simvastatin Contact your doctor immediately if you experience unexplained muscle pain, tenderness, or weakness. This risk is significantly increased if you drink large amounts of grapefruit juice or take certain other.
Lecturas adicionales y referencias
- Nemaline myopathy; MedlinePlus, National Library of Medicine.
- Lehtokari VL, Pelin K, Sandbacka M, Ranta S, Donner K, Muntoni F, Sewry C, Angelini C, Bushby K, Van den Bergh P, Iannaccone S, Laing NG, Wallgren-Pettersson C. Identification of 45 novel mutations in the nebulin gene associated with autosomal recessive nemaline myopathy. Hum Mutat. 2006 Sep;27(9):946-56. doi: 10.1002/humu.20370.
- Nowak KJ, Sewry CA, Navarro C, Squier W, Reina C, Ricoy JR, Jayawant SS, Childs AM, Dobbie JA, Appleton RE, Mountford RC, Walker KR, Clement S, Barois A, Muntoni F, Romero NB, Laing NG. Nemaline myopathy caused by absence of alpha-skeletal muscle actin. Ann Neurol. 2007 Feb;61(2):175-84. doi: 10.1002/ana.21035.
- Ottenheijm CA, Hooijman P, DeChene ET, Stienen GJ, Beggs AH, Granzier H. Altered myofilament function depresses force generation in patients with nebulin-based nemaline myopathy (NEM2). J Struct Biol. 2010 May;170(2):334-43. doi: 10.1016/j.jsb.2009.11.013. Epub 2009 Nov 26.
- Romero NB, Sandaradura SA, Clarke NF. Recent advances in nemaline myopathy. Curr Opin Neurol. 2013 Oct;26(5):519-26. doi: 10.1097/WCO.0b013e328364d681.
- Ryan MM, Schnell C, Strickland CD, Shield LK, Morgan G, Iannaccone ST, Laing NG, Beggs AH, North KN. Nemaline myopathy: a clinical study of 143 cases. Ann Neurol. 2001 Sep;50(3):312-20. doi: 10.1002/ana.1080.
- Wallgren-Pettersson C, Sewry CA, Nowak KJ, Laing NG. Nemaline myopathies. Semin Pediatr Neurol. 2011 Dec;18(4):230-8. doi: 10.1016/j.spen.2011.10.004.
- Yin X, Pu CQ, Wang Q, Liu JX, Mao YL. Clinical and pathological features of patients with nemaline myopathy. Mol Med Rep. 2014 Jul;10(1):175-82. doi: 10.3892/mmr.2014.2184. Epub 2014 Apr 24.
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