Wolf-Hirschhorn syndrome (WHS) results from a deletion of part of chromosome 4p. The region of 4p consistently deleted in WHS is near the tip of 4p. Two loci in this region D4S95 and D4S125 are associated with highly informative VNTR polymorphisms and were recently converted to allow PCR-based screening. PCR analysis was used successfully to identify a small de novo deletion of 4p in a patient suspected of having WHS. This procedure allows a rapid and accurate confirmation of 4p deletions in cases where cytogenetics alone cannot provide a clear answer.
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http://dx.doi.org/10.1002/ajmg.1320440413 | DOI Listing |
Genet Med Open
March 2024
Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan.
Purpose: Wolf-Hirschhorn syndrome (WHS), a contiguous gene syndrome caused by heterozygous deletions of the distal short arm of chromosome 4 that includes , reportedly causes specific DNA methylation signatures in peripheral blood cells. However, the genomic loci responsible for these signatures have not been elucidated. The present study aims to define the loci underlying WHS-related DNA methylation signatures and explore the role of in these signatures.
View Article and Find Full Text PDFLaryngoscope
November 2024
Department of Otolaryngology, Head and Neck Surgery, Mayo Clinic, Phoenix, Arizona, U.S.A.
Objectives: To assess the impact of body mass index (BMI) on hypoglossal nerve stimulator (HNS) implantation outcomes in pediatric patients with Down syndrome (DS). We compare outcomes of HNS implantation when comparing children based on overweight or obese status.
Methods: Retrospective cohort study of patients at a single tertiary pediatric hospital who underwent HNS implantation between 2022 and 2024.
Chromosome Res
November 2024
Department of Clinical Genomics, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
Chromosome 4p16.3 microdeletions are known to cause Wolf-Hirschhorn syndrome (WHS), which is characterized by a distinct craniofacial gestalt and multiple congenital malformations. The 4p16.
View Article and Find Full Text PDFCureus
September 2024
Anesthesiology, Lebanese American University Medical Center, Beirut, LBN.
Dev Med Child Neurol
October 2024
Department of Clinical Sciences, Orthopaedics, Lund University, Lund, Sweden.
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