Evidence map›Paper›PMID 31943325›Full record

ArticleAnnals of neurology2020

Scn8a Antisense Oligonucleotide Is Protective in Mouse Models of SCN8A Encephalopathy and Dravet Syndrome.

Guy M Lenk, Paymaan Jafar-Nejad, Sophie F Hill, Lucas D Huffman, Corrine E Smolen, Jacy L Wagnon, Hayley Petit, Wenxi Yu, Julie Ziobro, Kritika Bhatia and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Annals of neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 1 pooled it
15.7field-weighted citation impact, top 1% 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

89 citing papers in PubMed, 1 synthesis or guideline pooled it, 137 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. ACMG/AMP variant classification specifications from the ClinGen Epilepsy Sodium Channel Variant Curation Expert Panel.Genetics in medicine : official journal of the American College of Medical Genetics · 2026
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Genetic therapies for neurological diseases.Pharmacological reviews · 2026
    Review
  13. Genetic medicines for epilepsy: unlocking new avenues for seizure control.Frontiers in bioengineering and biotechnology · 2026
    Review
  14. Neurologist's Black Swan: Molecular Basis of Prenatal Seizures.International journal of molecular sciences · 2025
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review

29 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 1 country.

Guy M LenkDepartment of Human Genetics, University of Michigan, Ann Arbor, MI.ORCID 0000-0001-8092-1405
Paymaan Jafar-NejadIonis Pharmaceuticals, Carlsbad, CA.
Sophie F HillDepartment of Human Genetics, University of Michigan, Ann Arbor, MI.
Lucas D HuffmanNeuroscience Program, Ann Arbor, MI.
Corrine E SmolenDepartment of Human Genetics, University of Michigan, Ann Arbor, MI.
Jacy L WagnonDepartment of Human Genetics, University of Michigan, Ann Arbor, MI.
Hayley PetitDepartment of Human Genetics, University of Michigan, Ann Arbor, MI.
Wenxi YuDepartment of Human Genetics, University of Michigan, Ann Arbor, MI.
Julie ZiobroDepartment of Neurology, University of Michigan, Ann Arbor, MI.
Kritika BhatiaDepartment of Neurology, University of Michigan, Ann Arbor, MI.
Jack ParentDepartment of Neurology, University of Michigan, Ann Arbor, MI.
Roman J GigerNeuroscience Program, Ann Arbor, MI.
Frank RigoIonis Pharmaceuticals, Carlsbad, CA.
Miriam H MeislerDepartment of Human Genetics, University of Michigan, Ann Arbor, MI.
University of Michigan · USIonis Pharmaceuticals (United States) · USMichigan Medicine · US

Funding

The neuronal sodium channel gene SCN8AR01NS034509 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MIRIAM H MEISLER · 1996 to 2026
$9.5M
Advancing Child Health Through Cellular and Molecular BiologyK12HD028820 · NICHD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Donna M. Martin · 2002 to 2026
$9.2M
Structure, Composition, & Histology Core - Core BP30AR069620 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KARL J JEPSEN · 2016 to 2026
$8.4M
Michigan Mouse Metabolic Phenotyping CenterU2CDK110768 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ELIAS, CAROL FUZETI · 2016 to 2021
$6.2M
NIAMS NIH HHS P30 AR069620NICHD NIH HHS K12 HD028820NIDDK NIH HHS U2C DK110768NINDS NIH HHS R01 NS034509
6 · The paper itself

Abstract

objectiveSCN8A encephalopathy is a developmental and epileptic encephalopathy (DEE) caused by de novo gain-of-function mutations of sodium channel Na

methodsASO treatment was tested in a conditional mouse model with Cre-dependent expression of the pathogenic patient SCN8A mutation p.Arg1872Trp (R1872W). This model exhibits early onset of seizures, rapid progression, and 100% penetrance. An Scn1a

resultsWe observed a dose-dependent increase in length of survival from 15 to 65 days in the Scn8a-R1872W/+ mice treated with ASO. Electroencephalographic recordings were normal prior to seizure onset. Weight gain and activity in an open field were unaffected, but treated mice were less active in a wheel running assay. A single treatment with Scn8a ASO extended survival of Dravet syndrome mice from 3 weeks to >5 months.

interpretationReduction of Scn8a transcript by 25 to 50% delayed seizure onset and lethality in mouse models of SCN8A encephalopathy and Dravet syndrome. Reduction of SCN8A transcript is a promising approach to treatment of intractable childhood epilepsies. Ann Neurol 2020;87:339-346.

Indexed as

AnimalsBrain DiseasesDose-Response Relationship, DrugEpilepsies, MyoclonicFemaleInfusions, IntraventricularMaleMiceMice, TransgenicMutationNAV1.6 Voltage-Gated Sodium ChannelOligonucleotides, AntisenseSeizuresNAV1.6 Voltage-Gated Sodium ChannelOligonucleotides, AntisenseScn8a protein, mouse

Identifiers

PMID31943325
PMCPMC7064908
OpenAlexW2999994253

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.