Cited by 57Genomic variations and chromosomal abnormalitiesGenetics and Neurodevelopmental DisordersBipolar Disorder and Treatment

Phelan-McDermid syndrome in two adult brothers: atypical bipolar disorder as its psychopathological phenotype?

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Verhoeven, Willem M.A., Egger, J, Willemsen, De Leijer, Kleefstra·2012·Neuropsychiatric Disease and Treatment

Abstract

The 22q13.3 deletion, or Phelan-McDermid syndrome, is characterized by global intellectual disability, generalized hypotonia, severely delayed or absent speech associated with features of autism spectrum disorder, and minor dysmorphisms. Its behavioral phenotype comprises sleep disturbances, communication deficits, and motor perseverations. Data on psychological dysfunctions are so far not available. Previous studies have suggested that the loss of one copy of the gene SH3 and multiple ankyrin repeat domains 3 (SHANK3) is related to the neurobehavioral phenotype. Additional genes proximal to SHANK3 are also likely to play a role in the phenotype of patients with larger deletions. The present paper describes two adult brothers with an identical 2.15 Mb 22qter (22q13.32q13.33) deletion, of whom the youngest was referred for evaluation of recurrent mood changes. In both patients, magnetic resonance imaging of the brain showed hypoplasia of the vermis cerebelli. Extensive clinical examinations led to a final diagnosis of atypical bipolar disorder, of which symptoms fully remitted during treatment with a mood stabilizer. In the older brother, a similar psychopathological picture appeared to be present, although less severe and with a later onset. It is concluded that the behavioral phenotype of the 22q13.3 deletion syndrome comprises absent or delayed speech and perseverations with associated autistic-like features, whereas its psychopathological phenotype comprises an atypical bipolar disorder. The latter may have implications for the treatment regime of the syndrome-related behavioral disturbances.

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  • SHANK3 mutations have been identified in individuals developing adult-onset SHANK3-related disorders, such as schizophrenia and bipolar disorders.

    “SHANK3 mutations have also been identified in individuals developing adult-onset SHANK3 related-disorders, such as schizophrenia and bipolar disorders 96,97”

    From Progress toward treatments for synaptic defects in autism (2013) · cites this paper as [96]

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Authors
Verhoeven, W. M. A., Egger, J., Willemsen, Leijer, D., & Kleefstra
Affiliations
  • Erasmus MC (NL)
  • Radboud University Nijmegen (NL)
  • Radboud University Medical Center (NL)
Corresponding author
Verhoeven, Willem M.A.
Venue
Neuropsychiatric Disease and Treatment
Published
2012-04
Volume
8
Pages
175
ISSN
1176-6328 (ISSN-L)
OpenAlex
W2141893437
Cited by
57
References
31
Citations by year
2025: 1 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 3 · 2018: 9 · 2017: 5 · 2016: 5 · 2015: 6 · 2014: 1 · 2013: 7 · 2012: 2
FWCI
3.08
Type
journal article
Language
en
Open access
Locations
  • Neuropsychiatric Disease and Treatment (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion, other-oa)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion, other-oa)
  • RePub (Erasmus University Rotterdam) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Dove Medical Press (Taylor and Francis Group) (submittedVersion, cc-by-nc)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion, other-oa)
Funders
Radboud Universiteit
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
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
Keywords
Phelan-McDermid syndrome, 22q13.3 deletion, SHANK3, cerebellar vermis hypoplasia, behavioral phenotypes, mood stabilizers, intellectual disability, perseveration, speech delay

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