Evidence map›Paper›PMID 22612065›Full record

ArticleEpilepsia2012

Quantitative trait locus on distal chromosome 1 regulates the occurrence of spontaneous spike-wave discharges in DBA/2 mice.

Thomas Bessaïh, Esther Garcia de Yebenes, Kyle Kirkland, Michael J Higley, Russell J Buono, Thomas N Ferraro, Diego Contreras

Open access · greenAbstract read
In one paragraph

Article in Epilepsia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.4field-weighted citation impact, top 48% 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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Strain-dependent effects on neurobehavioral and seizure phenotypes inbioRxiv : the preprint server for biology · 2023
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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

7 authors at 3 institutions in 2 countries.

Thomas BessaïhDepartment of Neuroscience, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19106-6074, USA.
Esther Garcia de Yebenes
Kyle Kirkland
Michael J Higley
Russell J Buono
Thomas N Ferraro
Diego Contreras
University of Pennsylvania · USCoatesville Veterans Affairs Medical Center · USYale University · US

Funding

An Implantable Device to predict and Prevent SeizuresR01NS041811 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI DICHTER, MARC A · 2001 to 2011
$13.0M
QUANTITATIVE GENETIC STUDY OF SEIZURESR01NS040554 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI FERRARO, THOMAS N · 2000 to 2012
$4.4M
NINDS NIH HHS NS041811NINDS NIH HHS NS40554NINDS NIH HHS R01 NS040554NINDS NIH HHS R01 NS041811
6 · The paper itself

Abstract

purposeMost common forms of human epilepsy result from a complex combination of polygenetic and environmental factors. Quantitative trait locus (QTL) mapping is a first step toward the nonbiased discovery of epilepsy-related candidate genes. QTL studies of susceptibility to induced seizures in mouse strains have consistently converged on a distal region of chromosome 1 as a major phenotypic determinant; however, its influence on spontaneous epilepsy remains unclear. In the present study we characterized the influence of allelic variations within this QTL, termed Szs1, on the occurrence of spontaneous spike-wave discharges (SWDs) characteristic of absence seizures in DBA/2 (D2) mice.

methodsWe analyzed SWD occurrence and patterns in freely behaving D2, C57BL/6 (B6) and the congenic strains D2.B6-Szs1 and B6.D2-Szs1. KEY

findingsWe showed that congenic manipulation of the Szs1 locus drastically reduced the number and the duration of SWDs in D2.B6-Szs1 mice, which are homozygous for Szs1 from B6 strain on a D2 strain background. However, it failed to induce the full expression of SWDs in the reverse congenic animals B6.D2-Szs1. SIGNIFICANCE: Our results demonstrate that the occurrence of SWDs in D2 animals is under polygenic control and, therefore, the D2 and B6 strains might be a useful model to dissect the genetic determinants of polygenic SWDs characteristic of typical absence seizures. Furthermore, we point to the existence of epistatic interactions between at least one modifier gene within Szs1 and genes within unlinked QTLs in regulating the occurrence of spontaneous nonconvulsive forms of epilepsies.

Indexed as

Chromosome MappingAnimalsAnimals, CongenicBrainElectroencephalographyEpilepsy, AbsenceGenetic Predisposition to DiseaseMaleMiceMice, Inbred C57BLMice, Inbred DBAQuantitative Trait Loci

Identifiers

PMID22612065
PMCPMC3418401
OpenAlexW1506549633

What OpenQuestion holds

Textmetadata
LicenceTDM
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.