| Literature DB >> 26732610 |
Mari-Anne Vals1, Tiina Kahre2, Pille Mee3, Kai Muru4, Eha Kallas5, Olga Žilina6, Vallo Tillmann5, Katrin Õunap2.
Abstract
Silver-Russell syndrome (SRS) and Beckwith-Wiedemann syndrome (BWS) are 2 opposite growth-affecting disorders. The common molecular cause for both syndromes is an abnormal regulation of genes in chromosomal region 11p15, where 2 imprinting control regions (ICR) control fetal and postnatal growth. Also, many submicroscopic chromosomal disturbances like duplications in 11p15 have been described among SRS and BWS patients. Duplications involving both ICRs cause SRS or BWS, depending on which parent the aberration is inherited from. We describe to our knowledge the smallest familial pure 1.3-Mb duplication in chromosomal region 11p15.5p15.4 that involves both ICRs and is present in 3 generations causing an SRS or BWS phenotype.Entities:
Keywords: 11p15 duplication; 11p15 imprinting disorders; Beckwith-Wiedemann syndrome; Imprinting control region 1; Imprinting control region 2; Silver-Russell syndrome
Year: 2015 PMID: 26732610 PMCID: PMC4698645 DOI: 10.1159/000437061
Source DB: PubMed Journal: Mol Syndromol ISSN: 1661-8769