Evidence map›Paper›PMID 34344470›Full record

ArticleMolecular autism2021

Abnormal sleep physiology in children with 15q11.2-13.1 duplication (Dup15q) syndrome.

Vidya Saravanapandian, Divya Nadkarni, Sheng-Hsiou Hsu, Shaun A Hussain, Kiran Maski, Peyman Golshani, Christopher S Colwell, Saravanavel Balasubramanian, Amos Dixon, Daniel H Geschwind and 1 more

Abstract read
In one paragraph

Article in Molecular autism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  15. Evaluation of electroencephalography biomarkers for Angelman syndrome during overnight sleep.Autism research : official journal of the International Society for Autism Research · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Vidya SaravanapandianCenter for Autism Research and Treatment, Semel Institute for Neuroscience, University of California, Los Angeles, Los Angeles, CA, 90024, USA. vidyasaravanapandian@gmail.com.ORCID 0000-0001-5825-612X
Divya NadkarniDivision of Pediatric Epilepsy, Department of Pediatric Neurology, Children's Hospital Medical Center of Akron, Akron, OH, 44308, USA.
Sheng-Hsiou HsuSwartz Center for Computational Neuroscience, UC San Diego, La Jolla, USA.
Shaun A HussainDivision of Pediatric Neurology, David Geffen School of Medicine, UCLA Mattel Children's Hospital, Los Angeles, CA, USA.
Kiran MaskiDepartment of Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA.
Peyman GolshaniDepartment of Neurology and Semel Institute for Neuroscience, David Geffen School of Medicine, 710 Westwood Plaza, Los Angeles, CA, 90095, USA.
Christopher S ColwellDepartment of Psychiatry and Biobehavioral Sciences, Semel Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
Saravanavel BalasubramanianMicrosoft, Sunnyvale, CA, 94089, USA.
Amos DixonUndergraduate Interdepartmental Program for Neuroscience, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
Daniel H GeschwindCenter for Autism Research and Treatment, Semel Institute for Neuroscience, University of California, Los Angeles, Los Angeles, CA, 90024, USA.
Shafali S JesteChildren's Hospital Los Angeles, Los Angeles, CA, USA.

Funding

UCLA IDDRC: Translational CoreP50HD103557 · NICHD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SUSAN Y BOOKHEIMER · 2020 to 2026
$9.6M
UCLA Center for Translational Research in Neurodevelopment: UC-TRaNU54HD087101 · NICHD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MCCRACKEN, JAMES T. · 2016 to 2020
$6.5M
Electrophysiological biomarkers of sleep and cognition in Dup15q syndromeR21HD099686 · NICHD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JESTE, SHAFALI SPURLING · 2019 to 2020
$410k
NICHD NIH HHS P50 HD103557NICHD NIH HHS R21 HD099686NICHD NIH HHS U54 HD087101
6 · The paper itself

Abstract

backgroundSleep disturbances in autism spectrum disorder (ASD) represent a common and vexing comorbidity. Clinical heterogeneity amongst these warrants studies of the mechanisms associated with specific genetic etiologies. Duplications of 15q11.2-13.1 (Dup15q syndrome) are highly penetrant for neurodevelopmental disorders (NDDs) such as intellectual disability and ASD, as well as sleep disturbances. Genes in the 15q region, particularly UBE3A and a cluster of GABA

methodsTo test the hypothesis that elevated beta oscillations persist in sleep in Dup15q syndrome and that NREM sleep rhythms would be disrupted, we computed: (1) beta power, (2) spindle density, and (3) percentage of slow-wave sleep (SWS) in overnight sleep EEG recordings from a cohort of children with Dup15q syndrome (n = 15) and compared them to age-matched neurotypical children (n = 12).

resultsChildren with Dup15q syndrome showed abnormal sleep physiology with elevated beta power, reduced spindle density, and reduced or absent SWS compared to age-matched neurotypical controls. LIMITATIONS: This study relied on clinical EEG where sleep staging was not available. However, considering that clinical polysomnograms are challenging to collect in this population, the ability to quantify these biomarkers on clinical EEG-routinely ordered for epilepsy monitoring-opens the door for larger-scale studies. While comparable to other human studies in rare genetic disorders, a larger sample would allow for examination of the role of seizure severity, medications, and developmental age that may impact sleep physiology.

conclusionsWe have identified three quantitative EEG biomarkers of sleep disruption in Dup15q syndrome, a genetic condition highly penetrant for ASD. Insights from this study not only promote a greater mechanistic understanding of the pathophysiology defining Dup15q syndrome, but also lay the foundation for studies that investigate the association between sleep and cognition. Abnormal sleep physiology may undermine healthy cognitive development and may serve as a quantifiable and modifiable target for behavioral and pharmacological interventions.

Indexed as

Autism Spectrum DisorderIntellectual DisabilityChildElectroencephalographyHumansSeizuresSleepAutismBiomarkersDup15q syndromeEEGGABAARSleepSlow wave sleepSpindlesUBE3A

Identifiers

PMID34344470
PMCPMC8336244

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.