Evidence map›Paper›PMID 38233770›Full record

ArticleBMC neurology2024

Expanding the genotype-phenotype spectrum in SCN8A-related disorders.

Malavika Hebbar, Nawaf Al-Taweel, Inderpal Gill, Cyrus Boelman, Richard A Dean, Samuel J Goodchild, Janette Mezeyova, Noah Gregory Shuart, J P Johnson, James Lee and 5 more

Open access · goldAbstract read
In one paragraph

Article in BMC neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
5.0field-weighted citation impact, top 5% of its field
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

7 citing papers in PubMed, 9 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 3 institutions in 1 country.

Malavika HebbarDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Nawaf Al-TaweelDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Inderpal GillDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Cyrus BoelmanDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Richard A DeanXenon Pharmaceuticals, 200-3650 Gilmore Way, Burnaby, BC, V5G 4W8, Canada.
Samuel J GoodchildXenon Pharmaceuticals, 200-3650 Gilmore Way, Burnaby, BC, V5G 4W8, Canada.
Janette MezeyovaXenon Pharmaceuticals, 200-3650 Gilmore Way, Burnaby, BC, V5G 4W8, Canada.
Noah Gregory ShuartXenon Pharmaceuticals, 200-3650 Gilmore Way, Burnaby, BC, V5G 4W8, Canada.
J P JohnsonXenon Pharmaceuticals, 200-3650 Gilmore Way, Burnaby, BC, V5G 4W8, Canada.
James LeeDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Aspasia MichoulasDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Linda L HuhDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Linlea ArmstrongDepartment of Medical Genetics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Mary B ConnollyDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
Michelle K DemosDivision of Neurology, Department of Pediatrics, BC Children's Hospital, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. mdemos@cw.bc.ca.
BC Children's Hospital · CAXenon Pharmaceuticals (Canada) · CAUniversity of British Columbia · CA

Funding

Genomic Diagnosis in Children with Developmental DelayUM1HG007301 · NHGRI · HUDSON-ALPHA INSTITUTE FOR BIOTECHNOLOGY · PI COOPER, GREGORY MICHAEL, MYERS, RICHARD M · 2013 to 2016
$7.5M
NHGRI NIH HHS UM1 HG007301
6 · The paper itself

Abstract

backgroundSCN8A-related disorders are a group of variable conditions caused by pathogenic variations in SCN8A. Online Mendelian Inheritance in Man (OMIM) terms them as developmental and epileptic encephalopathy 13, benign familial infantile seizures 5 or cognitive impairment with or without cerebellar ataxia.

methodsIn this study, we describe clinical and genetic results on eight individuals from six families with SCN8A pathogenic variants identified via exome sequencing.

resultsClinical findings ranged from normal development with well-controlled epilepsy to significant developmental delay with treatment-resistant epilepsy. Three novel and three reported variants were observed in SCN8A. Electrophysiological analysis in transfected cells revealed a loss-of-function variant in Patient 4.

conclusionsThis work expands the clinical and genotypic spectrum of SCN8A-related disorders and provides electrophysiological results on a novel loss-of-function SCN8A variant.

Indexed as

Cognitive DysfunctionEpilepsyEpilepsy, GeneralizedGenotypeHumansMutationNAV1.6 Voltage-Gated Sodium ChannelPhenotypeNAV1.6 Voltage-Gated Sodium ChannelSCN8A protein, humanDevelopmental and Epileptic EncephalopathyElectrophysiological studyEpilepsyExome sequencingGain-of-functionLoss-of-functionSCN8ASeizureVariant of Uncertain significance

Identifiers

PMID38233770
PMCPMC10792783
OpenAlexW4390954303

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.