Evidence map›Paper›PMID 20978892›Full record

ArticleHeart and vessels2011

Abundant expression of KCNE1 in the left ventricle of the miniature pig.

Kaori Soma, Kentaro Nagaoka, Masayoshi Kuwahara, Hirokazu Tsubone, Koichi Ito

Abstract read
PubMed Publisher
In one paragraph

Article in Heart and vessels, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 32% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Review
  2. 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

5 authors at 1 institution in 1 country.

Kaori SomaDepartment of Comparative Pathophysiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
Kentaro Nagaoka
Masayoshi Kuwahara
Hirokazu Tsubone
Koichi Ito
The University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Delayed rectifier potassium currents such as I (Kr) and I (Ks) play an important role in the repolarization phase of the action potential in cardiac myocytes. Electrophysiological studies have shown that the pig is a useful animal not only for clinical use as a good candidate for humans, but also for basic research in heart function or arrhythmia. However, no studies concerning the potassium channels on a molecular level have been done. To elucidate the expression level and distribution of delayed rectifier potassium channels in pigs, we quantitatively investigated the I (Kr) and I (Ks) channel subunits using the real-time polymerase chain reaction (PCR) method. The hearts from Clawn miniature pigs were separated into the apical and basal regions, and subsequently excised into transmural trisections within each of the left ventricular walls, epicardium, midcardium, and endocardium. After RNA extraction from these sites, real-time PCR was executed with reverse transcriptional products for quantitative analysis. The expression level of KCNE1 was significantly higher than those of KCNQ1, KCNH2, and KCNE2, which were comparable in all sites. Transmural heterogeneity of these potassium channel subunits was not detected on the mRNA level. These results indicate that KCNE1 is a dominant subunit on the post-transcriptional level in the miniature pig.

Indexed as

Analysis of VarianceAnimalsEther-A-Go-Go Potassium ChannelsGene Expression RegulationHeart VentriclesKCNQ1 Potassium ChannelMalePotassium Channels, Voltage-GatedReverse Transcriptase Polymerase Chain ReactionRNA, MessengerSwineSwine, MiniatureTranscription, GeneticEther-A-Go-Go Potassium ChannelsKCNQ1 Potassium ChannelPotassium Channels, Voltage-GatedRNA, Messenger

Identifiers

PMID20978892
OpenAlexW2066112444

What OpenQuestion holds

Textmetadata
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.