Evidence map›Paper›PMID 27391700›Full record

ArticleBehavioral and brain functions : BBF2016

Association between C3435T polymorphism of MDR1 gene and the incidence of drug-resistant epilepsy in the population of Polish children.

Mariusz Stasiołek, Hanna Romanowicz, Katarzyna Połatyńska, Maciej Chamielec, Dominik Skalski, Marianna Makowska, Beata Smolarz

Open access · goldAbstract read
In one paragraph

Article in Behavioral and brain functions : BBF, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Polymorphisms Affecting the Response to Novel Antiepileptic Drugs.International journal of molecular sciences · 2023
    Review
  7. Article
  8. Pharmacogenetics of Drug-Resistant Epilepsy (Review of Literature).International journal of molecular sciences · 2021
    Review
  9. Article
  10. Article
  11. Review
  12. Article
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 2 institutions in 2 countries.

Mariusz StasiołekDepartment of Neurology, Polish Mother's Memorial Hospital-Research Institute, Rzgowska 281/289, 93-338, Lodz, Poland.
Hanna RomanowiczLaboratory of Cancer Genetics, Department of Clinical Pathomorphology, Polish Mother's Memorial Hospital-Research Institute, Rzgowska 281/289, 93-338, Lodz, Poland.
Katarzyna PołatyńskaDepartment of Neurology, Polish Mother's Memorial Hospital-Research Institute, Rzgowska 281/289, 93-338, Lodz, Poland.
Maciej ChamielecDepartment of Neurology, Polish Mother's Memorial Hospital-Research Institute, Rzgowska 281/289, 93-338, Lodz, Poland.
Dominik SkalskiDepartment of Neurology, Regional Hospital Dr. Charles Jonscher, Milionowa 14, 93-113, Lodz, Poland.
Marianna MakowskaDepartment of Neurology, Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany.
Beata SmolarzLaboratory of Cancer Genetics, Department of Clinical Pathomorphology, Polish Mother's Memorial Hospital-Research Institute, Rzgowska 281/289, 93-338, Lodz, Poland. smolbea@wp.pl.
Polish Mother’s Memorial Hospital Research Institute · PLCharité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEpilepsy is a disease of neurological character. Approximately one third of epileptic patients demonstrate a drug-resistant phenotype, which is associated with the development of drug-resistant epilepsy. The multidrug resistance protein 1 and glycoprotein P, encoded by MDR1, play a significant role in the transmembrane transport of anti-epileptic agents. Single nucleotide polymorphism C3435T (rs1045642) within MDR1 gene may be associated with an increased expression of P-gp which affects the levels of antiepileptic drugs in plasma. The presented studies analysed the association between C3435T polymorphism of MDR1 gene and the incidence of drug-resistant epilepsy in the population of Polish children.

methodsC3435T polymorphism of MDR1 gene was analysed by the high resolution melting technique in a group of patients with drug-resistant (n = 106) and drug-responsive epilepsy (n = 67), as well as in non-epileptic children (n = 98) hospitalised at the Department of Neurology, Polish Mother's Memorial Hospital in Lodz. Genotype and allele distributions were evaluated and their compatibility with the Hardy-Weinberg distribution was assessed by means of the χ(2) test. Genotype and allele evaluation, regarding their relationship with a given feature, was supported by an analysis of odds ratio and 95 % confidence interval, calculated according to the logistic regression model.

resultsAn association was observed between the incidence rate of DRE and the presence of C allele in C3435T polymorphism of MDR1 gene, which may enhance the risk of the disease. The T allele may then play a protective role. No differences were found in the studied groups, regarding either genotype or allele distribution in reference to patient's gender or concomitant diseases.

conclusionFollowing the obtained results, C3435T polymorphism of MDR1 gene may be connected with the incidence of drug-resistant epilepsy in the population of Polish children. ISRCTN ISRCTN73824458. Registered 28th September 2014.

Indexed as

AdolescentAllelesAnticonvulsantsATP Binding Cassette Transporter, Subfamily BCase-Control StudiesChildChild, PreschoolDrug Resistance, MultipleEpilepsyFemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHumansIncidenceInfantABCB1 protein, humanAnticonvulsantsATP Binding Cassette Transporter, Subfamily BChildrenDrug-resistant epilepsyDrug-responsive epilepsyGene polymorphismMDR1

Identifiers

PMID27391700
PMCPMC4938960
OpenAlexW2461967281

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.