Evidence map›Paper›PMID 26798387›Full record

ArticleKorean circulation journal2016

Genetic Variation of SCN5A in Korean Patients with Sick Sinus Syndrome.

Young Soo Lee, Michael A Olaopa, Byung Chun Jung, Sang Hee Lee, Dong Gu Shin, Hyoung Seob Park, Yongkeun Cho, Sang Mi Han, Myung Hoon Lee, Yoon Nyun Kim

Open access · hybridAbstract read
In one paragraph

Article in Korean circulation journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.2field-weighted citation impact, top 36% 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

4 citing papers in PubMed, 5 citations in OpenAlex.

  1. SCN5AInternational journal of legal medicine · 2026
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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

10 authors at 7 institutions in 2 countries.

Young Soo LeeDivision of Cardiology, Catholic University of Daegu, Daegu, Korea.
Michael A OlaopaKrannert Institute of Cardiology, Indiana University School of Medicine, Indianapolis, IN, USA.
Byung Chun JungDaegu Fatima Hospital, Daegu, Korea.
Sang Hee LeeYeungnam University, Daegu, Korea.
Dong Gu ShinYeungnam University, Daegu, Korea.
Hyoung Seob ParkDepartment of Internal Medicine, Keimyung University, Daegu, Korea.
Yongkeun ChoKyungpook National University, Daegu, Korea.
Sang Mi HanD&P Biotech, Daegu, Korea.
Myung Hoon LeeD&P Biotech, Daegu, Korea.; Department of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Korea.
Yoon Nyun KimDepartment of Internal Medicine, Keimyung University, Daegu, Korea.
Keimyung University · KRKyungpook National University · KRYeungnam University · KRDaegu Catholic University · KRDaegu Fatima Hospital · KRDaegu TechnoPark · KRIndiana University School of Medicine

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesDue to recent studies that have shown an association between the genetic variation of SCN5A and sick sinus syndrome (SSS), we sought to determine if a similar correlation existed in Korean patients with SSS. SUBJECTS AND

methodsWe enrolled 30 patients with SSS who showed a sinus pause (longer than 3.0 s) in Holter monitoring, in addition to 80 controls. All exons including the putative splicing sites of the SCN5A gene were amplified by polymerase chain reaction and sequenced either directly or following subcloning. Wild-type and single nucleotide polymorphisms were expressed in human embryonic kidney cells, and the peak sodium current (INa ) was analyzed using the whole-cell patch-clamp technique.

resultsA total of 9 genetic variations were identified: 7 variations (G87A-A29A, IVS9-3C>A, A1673G-H558R, G3823A-D1275N, T5457C-D1819D, T5963G-L1988R, and C5129T-S1710L) had been previously reported, and 2 variants (A3075T-E1025D and T4847A-F1616Y) were novel; the potential structural effects of F1616Y were analyzed in a three-dimensional model of the SCN5A domain. Patch-clamp studies at room temperature demonstrated that the peak INa was significantly increased by 140% in HEK cells transfected with F1616Y compared with wild-type (-335.13 pA/pF±24.04, n=8 vs. -139.95 pA/pF±23.76, n=7, respectively). Furthermore, the voltage dependency of the activation and steady-state inactivation of F1616Y were leftward-shifted compared with wild-type (Vh activation=-55.36 mv±0.22, n=8 vs. Vh activation=-44.21 mV±0.17, n=7; respectively; Vh inactivation=-104.47 mV±0.21, n=7 vs. Vh inactivation=-84.89 mV±0.09, n=12, respectively).

conclusionF1616Y may be associated with SSS.

Indexed as

Polymorphism, single nucleotideSCN5A protein, humanSick sinus syndrome

Identifiers

PMID26798387
PMCPMC4720851
OpenAlexW2259012937

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.