MECP2 duplication syndrome
अंतिम अद्यतन 2 Aug 2023
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MECP2 duplication syndrome is a condition that occurs almost exclusively in males and is characterised by moderate to severe intellectual disability. Most people with this condition also have weak muscle tone in infancy, feeding difficulties, poor or absent speech, or muscle stiffness (rigidity). Individuals with MECP2 duplication syndrome have delayed development of motor skills such as sitting and walking. About half of individuals have seizures, often of the tonic-clonic type. This type of seizure involves a loss of consciousness, muscle rigidity, and convulsions and may not respond to medication. Some affected individuals experience the loss of previously acquired skills (developmental regression). Approximately half of individuals learn to walk, and about one-third of people with this condition require assistance when walking. Many individuals with MECP2 duplication syndrome have recurrent respiratory tract infections. These respiratory infections are a major cause of death in affected individuals, with only half surviving past age 25.
विवरण
MECP2 duplication syndrome is a condition that occurs almost exclusively in males and is characterised by moderate to severe intellectual disability. Most people with this condition also have weak muscle tone in infancy, feeding difficulties, poor or absent speech, or muscle stiffness (rigidity). Individuals with MECP2 duplication syndrome have delayed development of motor skills such as sitting and walking. About half of individuals have seizures, often of the tonic-clonic type. This type of seizure involves a loss of consciousness, muscle rigidity, and convulsions and may not respond to medication. Some affected individuals experience the loss of previously acquired skills (developmental regression). Approximately half of individuals learn to walk, and about one-third of people with this condition require assistance when walking. Many individuals with MECP2 duplication syndrome have recurrent respiratory tract infections. These respiratory infections are a major cause of death in affected individuals, with only half surviving past age 25.
Inheritance patterns
The source lists the following possible inheritance patterns: X-linked. More than one pattern can apply in different cases.
Related genes
Other names
Lubs X-linked mental retardation syndrome
Trisomy Xq28
Related patient information and medicines
Patient information leaflet
क्री डू चैट सिंड्रोम
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नेफ्रोटिक सिंड्रोम
नेफ्रोटिक सिंड्रोम is a condition where the 'filters' in the kidney become 'leaky' and large amounts of protein leak from the blood into the urine. The main symptom is fluid retention (oedema) which is mainly due to the low protein level in the blood. Various diseases can cause nephrotic syndrome, some more serious than others. The most common.
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पॉलीसिस्टिक ओवरी सिंड्रोम
पॉलीसिस्टिक ओवरी सिंड्रोम (पीसीओएस) है a metabolic condition that affects how the ovaries work. It can cause symptoms such as weight gain, excess hair growth, period problems, and can impact fertility. What is polycystic ovary syndrome (PCOS). Polycystic ovary syndrome (PCOS) is a medical condition that affects how the body regulates hormones. It can.
Patient information leaflet
डाउन सिंड्रोम
डाउन सिंड्रोम (also known as Down syndrome) है a genetic chromosome problem. Someone with Down's syndrome has an extra copy of chromosome 21 in the cells of their body. All people with Down's syndrome have some degree of learning disability. Down's syndrome may be detected before birth (prenatally) or after birth (postnatally). It cannot be.
Patient information leaflet
भ्रूण एंटीकन्वल्सेंट सिंड्रोम
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Patient information leaflet
कम्पार्टमेंट सिंड्रोम
Compartment syndrome occurs due to increased pressure within a confined space, or compartment, in the body. It can occur in the hand, the forearm, the upper arm, the buttocks, the leg, the foot and the tummy (abdomen). Compartment syndrome most commonly occurs in the leg below the knee. Acute compartment syndrome (occurring over a short period of.
अधिक पठन और संदर्भ
- MECP2 duplication syndrome; MedlinePlus, National Library of Medicine.
- El Chehadeh S, Touraine R, Prieur F, Reardon W, Bienvenu T, Chantot-Bastaraud S, Doco-Fenzy M, Landais E, Philippe C, Marle N, Callier P, Mosca-Boidron AL, Mugneret F, Le Meur N, Goldenberg A, Guerrot AM, Chambon P, Satre V, Coutton C, Jouk PS, Devillard F, Dieterich K, Afenjar A, Burglen L, Moutard ML, Addor MC, Lebon S, Martinet D, Alessandri JL, Doray B, Miguet M, Devys D, Saugier-Veber P, Drunat S, Aral B, Kremer V, Rondeau S, Tabet AC, Thevenon J, Thauvin-Robinet C, Perreton N, Des Portes V, Faivre L. Xq28 duplication including MECP2 in six unreported affected females: what can we learn for diagnosis and genetic counselling? Clin Genet. 2017 Apr;91(4):576-588. doi: 10.1111/cge.12898. Epub 2017 Feb 16.
- Gonzales ML, LaSalle JM. The role of MeCP2 in brain development and neurodevelopmental disorders. Curr Psychiatry Rep. 2010 Apr;12(2):127-34. doi: 10.1007/s11920-010-0097-7.
- Lombardi LM, Baker SA, Zoghbi HY. MECP2 disorders: from the clinic to mice and back. J Clin Invest. 2015 Aug 3;125(8):2914-23. doi: 10.1172/JCI78167. Epub 2015 Aug 3.
- Lugtenberg D, Kleefstra T, Oudakker AR, Nillesen WM, Yntema HG, Tzschach A, Raynaud M, Rating D, Journel H, Chelly J, Goizet C, Lacombe D, Pedespan JM, Echenne B, Tariverdian G, O'Rourke D, King MD, Green A, van Kogelenberg M, Van Esch H, Gecz J, Hamel BC, van Bokhoven H, de Brouwer AP. Structural variation in Xq28: MECP2 duplications in 1% of patients with unexplained XLMR and in 2% of male patients with severe encephalopathy. Eur J Hum Genet. 2009 Apr;17(4):444-53. doi: 10.1038/ejhg.2008.208. Epub 2008 Nov 5.
- Ramocki MB, Peters SU, Tavyev YJ, Zhang F, Carvalho CM, Schaaf CP, Richman R, Fang P, Glaze DG, Lupski JR, Zoghbi HY. Autism and other neuropsychiatric symptoms are prevalent in individuals with MeCP2 duplication syndrome. Ann Neurol. 2009 Dec;66(6):771-82. doi: 10.1002/ana.21715.
- Yi Z, Pan H, Li L, Wu H, Wang S, Ma Y, Qi Y. Chromosome Xq28 duplication encompassing MECP2: Clinical and molecular analysis of 16 new patients from 10 families in China. Eur J Med Genet. 2016 Jun;59(6-7):347-53. doi: 10.1016/j.ejmg.2016.05.004. Epub 2016 May 11.
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