Evidence map›Paper›PMID 21327545›Full record

ArticleMolecular and cellular biochemistry2011

Puerarin: a novel antagonist to inward rectifier potassium channel (IK1).

Hua Zhang, Li Zhang, Qing Zhang, XingCang Yang, JiYun Yu, ShuHong Shun, Yang Wu, QianHui Zeng, TingZhong Wang

Abstract read
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In one paragraph

Article in Molecular and cellular biochemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 28% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

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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

9 authors at 4 institutions in 1 country.

Hua ZhangDepartment of Cardiology, Shaanxi Provincial Corps Hospital of Chinese People's Armed Police Forces, Xi'an, People's Republic of China. zl1017@126.com
Li Zhang
Qing Zhang
XingCang Yang
JiYun Yu
ShuHong Shun
Yang Wu
QianHui Zeng
TingZhong Wang
JiangSu Armed Police General Hospital · CNChinese People's Armed Police ForceAcademy of Military Medical Sciences · CNXi'an Jiaotong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Puerarin, isolated from the root of pueraria, had been widely used to prevent and treat arrhythmia. We show that puerarin effectively prevents and reverses aconitine-induced arrhythmias in perfused heart in vitro and in rats in vivo. To study the mechanisms of antiarrhythmic action of puerarin, we investigated the electrophysiological actions of puerarin using whole-cell clamp in isolated rodent ventricular myocytes and two electrode voltage-clamp (TEV) in I(K1)-expressing Xenopus oocytes. Puerarin had no prominent effect on action potentials of ventricular myocytes from guinea pig. However, puerarin (1.2 mM) significantly inhibited the I(K1) current in rat ventricular cells. Consistently, puerarin blocked I(K1) expressed in Xenopus oocytes in a dose-dependent manner. Puerarin competed with barium, an open-channel blocker of I(K1), to inhibit I(K1) currents. Thus, our data demonstrated that puerarin is a novel open-channel blocker of I(K1), which may underlie the antiarrhythmic action of puerarin.

Indexed as

AnimalsAnti-Arrhythmia AgentsDose-Response Relationship, DrugGuinea PigsHeart VentriclesIsoflavonesPatch-Clamp TechniquesPotassium Channels, Inwardly RectifyingRatsRats, Sprague-DawleyXenopusAnti-Arrhythmia AgentsIsoflavonesPotassium Channels, Inwardly Rectifyingpuerarin

Identifiers

PMID21327545
OpenAlexW2120818642

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.