000 02449na a2200253 4500
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008 130622s2012 xxx||||| |||| 00| 0 eng d
040 _cH120
041 _aeng
100 _aBoni, Lorenzo
_92095
_eCirugía Cardiaca
100 _aComas Illas, Juan Valentín
_91849
_eCirugía Cardíaca Pediátrica
100 _aMendoza Soto, Alberto
_9849
_ePediatría
245 0 0 _aIdentification of de novo mutations and rare variants in hypoplastic left heart syndrome.
_h[artículo]
260 _bClinical Genetics,
_c2012
300 _a81(6):542-54
500 _aFormato Vancouver: Iascone M, Ciccone R, Galletti L, Marchetti D, Seddio F, Lincesso AR, et al. Identification of de novo mutations and rare variants in hypoplastic left heart syndrome. Clin Genet. 2012 Jun;81(6):542-54.
501 _aPMID: 21457232
504 _aContiene 29 referencias
520 _aHypoplastic left heart syndrome (HLHS) is one of the most severe congenital heart malformations, characterized by underdevelopment of the structures in the left heart–aorta complex. The majority of cases are sporadic. Although multiple genetic loci have been tentatively implicated in HLHS, no gene or pathway seems to be specifically associated with the disease. To elucidate the genetic basis of HLHS, we analyzed 53 well-characterized patients with isolated HLHS using an integrated genomic approach that combined DNA sequencing of five candidate genes (NKX2-5, NOTCH1, HAND1, FOXC2 and FOXL1) and genome-wide screening by high-resolution array comparative genomic hybridization. In 30 patients, we identified two novel de novo mutations in NOTCH1, 23 rare patients inherited gene variants in NOTCH1, FOXC2 and FOXL1, and 33 rare patients mostly inherited copy-number variants. Some of the identified variations coexisted in the same patient. The biological significance of such rare variations is unknown, but our findings strengthen the role of NOTCH pathway in cardiac valve development, indicating that HLHS is, at least in part, a ‘valve’ disease. This is the first report of de novo mutations associated with isolated HLHS. Moreover, the coexistence of multiple rare variants suggests in some cases a cumulative effect, as shown for other complex disease.
710 _9446
_aServicio de Pediatría-Neonatología
856 _uhttp://pc-h12o-es.m-hdoct.a17.csinet.es/pdf/pc/3/pc3273.pdf
_ySolicitar documento
942 _n0
_2ddc
_cART
999 _c3273
_d3273