2011
DOI: 10.1136/jmg.2010.082412
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High incidence of recurrent copy number variants in patients with isolated and syndromic Mullerian aplasia

Abstract: Background-Congenital malformations involving the Müllerian ducts are observed in around 5% of infertile women. Complete aplasia of the uterus, cervix, and upper vagina, also termed Müllerian aplasia or Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome, occurs with an incidence of around 1 in 4500 female births, and occurs in both isolated and syndromic forms. Previous reports have suggested that a proportion of cases, especially syndromic cases, are caused by variation in copy number at different genomic loci.

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Cited by 107 publications
(131 citation statements)
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“…This syndrome is defined in 46,XX women by congenital absence of the uterus and upper part of the vagina with otherwise normal sexual development and can be associated with renal, skeletal and/or hearing defects (Bernardini et al, 2009;Nik-Zainal et al, 2011 The 17q12 microdeletions are not characterized by intellectual disability or other neurobehavioral phenotypes, while it was observed that the duplication of the same region causes intellectual disability, autism spectrum disorder and speech delay (Brandt et al, 2012). Although earlier reports of cases with the 17q12 microdeletion syndrome did not include cognitive impairment as a part of the characteristic phenotype of these deletions (Mefford et al, 2007), recently, some authors (Dixit et al, 2012;Loirat et al, 2010;Mukamel et al, 2011) have reported rare cases with intellectual impairment, with or without autism, suggesting that cognitive impairment and a behavioral phenotype could be part of the clinical features conveyed by the 17q12 microdeletion.…”
Section: Introductionmentioning
confidence: 99%
“…This syndrome is defined in 46,XX women by congenital absence of the uterus and upper part of the vagina with otherwise normal sexual development and can be associated with renal, skeletal and/or hearing defects (Bernardini et al, 2009;Nik-Zainal et al, 2011 The 17q12 microdeletions are not characterized by intellectual disability or other neurobehavioral phenotypes, while it was observed that the duplication of the same region causes intellectual disability, autism spectrum disorder and speech delay (Brandt et al, 2012). Although earlier reports of cases with the 17q12 microdeletion syndrome did not include cognitive impairment as a part of the characteristic phenotype of these deletions (Mefford et al, 2007), recently, some authors (Dixit et al, 2012;Loirat et al, 2010;Mukamel et al, 2011) have reported rare cases with intellectual impairment, with or without autism, suggesting that cognitive impairment and a behavioral phenotype could be part of the clinical features conveyed by the 17q12 microdeletion.…”
Section: Introductionmentioning
confidence: 99%
“…2,3,5,7,9,10 Maximal duplication in 1q21.1: 200 kb. 3 Partial duplication of the Xpter pseudoautosomal region 1.…”
Section: Mutational Spectrummentioning
confidence: 99%
“…Обе формы синдрома МРКХ теперь так-же могли быть добавлены к вышеперечисленному списку. Такие повторяющиеся копии генов (CNVs -copy number variants) были обнаружены у 5% паци-енток с изолированной формой МРКХ и у 8% паци-енток с ассоциированными МРКХ (II тип) [55]. Хотя число хромосомных локусов, которые были описа-ны, содержали 0,55 Mб делеций на участке 16р11.2 и 1,4 Mб делеций на участке 17q12, представляющих два из наиболее распространенных и вовлеченных генов, до настоящего времени непонятно, благодаря какому механизму (потери смежных генов или нали-чию единственного ответственного гена) формиру-ется такая патология [7].…”
Section: современные цитогенетические и молекулярно-ге-нетические иссunclassified
“…В настоящее время широкое развитие получила эпигенетика -наука, предполагающая отсутствие повреждения генома у потомства на уровне ДНК-последовательности, но наследующая эпигенетиче-ские изменения, включающие процессы метилиро-вания, посттрансляционные модификации конеч-ных цепей гистонов и ремоделирование хроматина, что может объяснить не только противоречия, на-блюдаемые у монозиготных близнецов, но также фе-номен неполной пенетрантности, различной экс-прессивности, спорадические случаи возникнове-ния патологии [55,56]. Несомненно, требуются до-полнительные исследования в данной области.…”
Section: современные цитогенетические и молекулярно-ге-нетические иссunclassified