Cited by 49Genetic Syndromes and ImprintingGenetics and Neurodevelopmental DisordersGenomic variations and chromosomal abnormalities

Divergent structural brain abnormalities between different genetic subtypes of children with Prader–Willi syndrome

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Lukoshe, Akvile, White, Tonya, Schmidt, Marcus N, van der Lugt, Aad, Hokken-Koelega, Anita C·2013·Journal of Neurodevelopmental Disorders

Abstract

BACKGROUND: Prader-Willi syndrome (PWS) is a complex neurogenetic disorder with symptoms that indicate not only hypothalamic, but also a global, central nervous system (CNS) dysfunction. However, little is known about developmental differences in brain structure in children with PWS. Thus, our aim was to investigate global brain morphology in children with PWS, including the comparison between different genetic subtypes of PWS. In addition, we performed exploratory cortical and subcortical focal analyses. METHODS: High resolution structural magnetic resonance images were acquired in 20 children with genetically confirmed PWS (11 children carrying a deletion (DEL), 9 children with maternal uniparental disomy (mUPD)), and compared with 11 age- and gender-matched typically developing siblings as controls. Brain morphology measures were obtained using the FreeSurfer software suite. RESULTS: Both children with DEL and mUPD showed smaller brainstem volume, and a trend towards smaller cortical surface area and white matter volume. Children with mUPD had enlarged lateral ventricles and larger cortical cerebrospinal fluid (CSF) volume. Further, a trend towards increased cortical thickness was found in children with mUPD. Children with DEL had a smaller cerebellum, and smaller cortical and subcortical grey matter volumes. Focal analyses revealed smaller white matter volumes in left superior and bilateral inferior frontal gyri, right cingulate cortex, and bilateral precuneus areas associated with the default mode network (DMN) in children with mUPD. CONCLUSIONS: Children with PWS show signs of impaired brain growth. Those with mUPD show signs of early brain atrophy. In contrast, children with DEL show signs of fundamentally arrested, although not deviant brain development and presented few signs of cortical atrophy. Our results of global brain measurements suggest divergent neurodevelopmental patterns in children with DEL and mUPD.

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  • Neuropathological findings in Prader-Willi syndrome subjects include abnormal distribution of cells in the dentate and olivary nuclei, nerve degeneration in the dentate nucleus, cerebellar heterotopia, enlarged ventricles, reduced parieto-occipital lobe volume, multiple small gyri in the sylvian fissure, incompletely operculated insula, and smaller cerebellum and brainstem.

    “Neuropathological findings in subjects with Prader-Willi syndrome include abnormal distribution of cells in the dentate and olivary nuclei, nerve degeneration in the dentate nucleus, cerebellar heterotopia [150], enlarged ventricles, reduced volume of parieto-occipital lobe, multiple small gyri in the sylvian fissure, incompletely operculated insula [239], and smaller cerebellum and brainstem [222”

    From Autism spectrum disorder: neuropathology and animal models (2017) · cites this paper as [222]

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Authors
Lukoshe, A., White, T., Schmidt, M. N., van der Lugt, A., & Hokken-Koelega, A. C.
Affiliations
Erasmus MC (NL)
Corresponding author
Lukoshe, Akvile
Venue
Journal of Neurodevelopmental Disorders
Published
2013-10-22
Volume
5
Issue
1
Pages
31-31
ISSN
  • 1866-1947 (ISSN-L)
  • 1866-1955
OpenAlex
W2106407098
Cited by
49
References
66
Citations by year
2026: 3 · 2025: 2 · 2024: 4 · 2023: 4 · 2022: 4 · 2021: 8 · 2020: 2 · 2019: 4 · 2018: 2 · 2017: 5 · 2016: 4 · 2015: 5 · 2014: 2
FWCI
2.43
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurodevelopmental Disorders (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
Funders
Foundation for Prader-Willi Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
Keywords
Prader-Willi syndrome, genetic subtypes, maternal uniparental disomy, brain structure, brainstem volume, cerebellum, white matter volume, lateral ventricle, cerebrospinal fluid volume, cortical thickness, default mode network, cingulate cortex, precuneus, brain atrophy, children

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