Evidence map›Paper›PMID 22328875›Full record

ArticleArchives of medical science : AMS2011

Age-and sex-dependent mRNA expression of KCNQ1 and HERG in patients with long QT syndrome type 1 and 2.

Ewa Moric-Janiszewska, Joanna Głogowska-Ligus, Monika Paul-Samojedny, Ludmiła Węglarz, Grażyna Markiewicz-Łoskot, Lesław Szydłowski

Open access · goldAbstract read
In one paragraph

Article in Archives of medical science : AMS, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. A Cautionary Tale of Combination Ceftriaxone and Lansoprazole: Should Pediatric Clinicians Heed the Warning?The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2025
    Article
  2. KCNQ1 is an essential mediator of the sex-dependent perception of moderate cold temperatures.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  3. Article
  4. Article
  5. Article
  6. An unusual etiology of torsade de pointes-induced syncope.Archives of medical science : AMS · 2017
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Effects of Methadone on Corrected Q-T Interval Prolongation in Critically Ill Children.The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG
    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

6 authors at 1 institution in 1 country.

Ewa Moric-JaniszewskaDepartment of Biochemistry, Medical University of Silesia, Sosnowiec, Poland.
Joanna Głogowska-Ligus
Monika Paul-Samojedny
Ludmiła Węglarz
Grażyna Markiewicz-Łoskot
Lesław Szydłowski
Medical University of Silesia · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe main goal of this study was to examine the patient age and sex dependent expression of KCNQ1 and HERG genes that encode potassium channels responsible for the occurrence of long QT syndrome (LQTS). MATERIAL AND

methodsThe study enrolled 43 families whose members suffered from LQTS type 1 (LQTS1) or 2 (LQTS2) or were healthy. The study attempted to prove that β-actin is a good endogenous control when determining the expression of the studied genes. Examination of gene expression was achieved with quantitative real-time PCR (QRT-PCR). Expression of the investigated genes was inferred from the analysis of the number of mRNA copies per 1 μg total RNA isolated from whole blood.

resultsSignificantly lower KCNQ1 and KCNH2 mRNA levels in healthy females than healthy males were observed (p = 0.032; p = 0.02). In male patients both transcripts were expressed at a lower level (p = 0.0084; p = 0.035). The comparison of transcriptional activity of KCNQ1 and KCNH2 in healthy adults and children revealed higher KCNQ1 and lower KCNH2 mRNA levels in healthy adults (p = 0.033; p = 0.04), higher KCNQ1 and lower KCNH2 mRNA levels in adult patients below 55 years old than in adults over 55 years old (p=0.036; p = 0.044), and significantly higher KCNQ1 and lower KCNH2 mRNA levels in adult patients (over 55 years) than in paediatric patients (below 15 years) (p=0.047; p = 0.08).

conclusionsThe results support the hypothesis that KCNQ1 and HERG gene expression is influenced by age and gender in human patients with long QT syndrome and in healthy subjects.

Indexed as

expressionHERG geneKCNQ1 genelong QT syndromepotassium channel

Identifiers

PMID22328875
PMCPMC3264984
OpenAlexW2010686300

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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.