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Background: Genomic imprinting is an epigenetic mechanism referring to the monoallelic silencing of genes according to their parental origin. Human chromosome 11p15.5 encompasses two imprinted domains (ICR1 and ICR2) playing an important role in controlling fetal and postnatal growth. Genetic (uniparental disomy or gain/loss of function mutations) or epigenetic alterations at the 11p15.5 imprinted region (loss or gain of DNA methylation) are associated with two clinical disord...

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hrp0086fc3.3 | Pituitary | ESPE2016

Contribution of GLI2 Mutations to Pituitary Deficits and Delineation of the Associated Phenotypic Spectrum

Cohen Enzo , Pham Aurelie , Dastot Florence , Collot Nathalie , Afenjar Alexandra , Carel Jean-Claude , Furioli Jean , Leger Juliane , Leheup Bruno , Mignot Brigitte , Naud-Saudreau Catherine , Nivot Sylvie , Polak Michel , Rappaport Raphael , Simon Dominique , Sizonenko Pierre , Vincent-Delorme Catherine , Zung Amnon , Amselem Serge , Legendre Marie

Background: GLI2 is a zinc-finger transcription factor of the SHH signaling pathway, expressed during ventral forebrain and pituitary development. GLI2 mutations account for microforms of dominant holoprosencephaly. So far, only 15 unambiguous mutations were found in hypopituitarism essentially combined pituitary hormone deficiency (CPHD) frequently associated with holoprosencephaly-like malformations and/or polydactyly.Objective and...

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ESPE Abstracts

Silver Russell and Beckwith-Wiedemann Syndromes: Mosaic Distribution of Epigenetic Anomalies

Contribution of GLI2 Mutations to Pituitary Deficits and Delineation of the Associated Phenotypic Spectrum

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