Cited by 241Genomic variations and chromosomal abnormalitiesGenetics and Neurodevelopmental DisordersGenomics and Rare Diseases

Smith–Magenis syndrome

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Elsea, Sarah H, Girirajan, Santhosh·2008·European Journal of Human Genetics

Abstract

Smith-Magenis syndrome (SMS) is a complex neurobehavioral disorder caused by haploinsufficiency of the retinoic acid-induced 1 (RAI1) gene on chromosome 17p11.2. Diagnostic strategies include molecular identification of a 17p11.2 microdeletion encompassing RAI1 or a mutation in RAI1. G-banding and fluorescent in situ hybridization (FISH) are the classical methods used to detect the SMS deletions, while multiplex ligation-dependent probe amplification (MLPA) and real-time quantitative PCR are the newer, cost-effective, and high-throughput technologies. Most SMS features are due to RAI1 haploinsufficiency, while the variability and severity of the disorder are modified by other genes in the 17p11.2 region. The functional role for RAI1 is not completely understood, but it is likely involved in transcription, based on homology and preliminary studies. Management of SMS is primarily a multidisciplinary approach and involves treatment for sleep disturbance, speech and occupational therapies, minor medical interventions, and management of behaviors.

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  • Therapies targeting the reversal of melatonin rhythms in patients with SMS may improve sleep, as well as behaviour, attention and learning.

    “Thus, therapies targeting the reversal of melatonin rhythms in patients with SMS may improve sleep, as well as behaviour, attention and learning137–139.”

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Research works printed but not linked: 4

  1. Greenberg F, Lewis RA, Potocki L et al: Multi-disciplinary clinical study of Smith -Magenis syndrome (deletion 17p11.2). Am J Med Genet 1996; 62: 247 -254.
  2. Finucane B, Dirrigl KH, Simon EW: Characterization of self- injurious behaviors in children and adults with Smith -Magenis syndrome. Am J Ment Retard 2001; 106: 52 -58.
  3. Smith AC, Dykens E, Greenberg F: Behavioral phenotype of Smith -Magenis syndrome (del 17p11.2). Am J Med Genet 1998; 81: 179 -185.
  4. Smith AC, Dykens E, Greenberg F: Sleep disturbance in Smith - Magenis syndrome (del 17 p11.2). Am J Med Genet 1998; 81: 186 -191.

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Authors
Elsea, S. H., & Girirajan, S.
Affiliations
Virginia Commonwealth University (US)
Corresponding author
Elsea, Sarah H
Venue
European Journal of Human Genetics
Published
2008-01-30
Volume
16
Issue
4
Pages
412-421
ISSN
  • 1018-4813 (ISSN-L)
  • 1476-5438
OpenAlex
W2116514710
Cited by
241
References
130
Citations by year
2026: 5 · 2025: 5 · 2024: 14 · 2023: 5 · 2022: 12 · 2021: 10 · 2020: 10 · 2019: 8 · 2018: 12 · 2017: 17 · 2016: 14 · 2015: 17 · 2014: 14 · 2013: 17 · 2012: 17
FWCI
1.84
Type
journal article
Language
en
Open access
Locations
  • European Journal of Human Genetics (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Virginia Commonwealth University
  • National Institutes of Health (NIH-R01)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD38534, R01HD038534)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
Smith-Magenis syndrome, RAI1 gene, haploinsufficiency, chromosome 17p11.2, microdeletion, neurobehavioral disorders, diagnostic testing, fluorescence in situ hybridization, multiplex ligation-dependent probe amplification, real-time quantitative PCR, sleep disorders, multidisciplinary management
MeSH terms
Abnormalities, Multiple, Chromosomes, Human, Pair 17, Humans, Intellectual Disability, Syndrome, Transcription Factors, Trans-Activators, Craniofacial Abnormalities

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