Evidence map›Paper›PMID 34988524›Full record

ArticleHeart rhythm O22021

Cardioprotective effects of dantrolene in doxorubicin-induced cardiomyopathy in mice.

Mohammed Ali Azam, Praloy Chakraborty, Mahmoud M Bokhari, Keith Dadson, Beibei Du, Stéphane Massé, Daoyuan Si, Ahmed Niri, Arjun K Aggarwal, Patrick F H Lai and 3 more

Open access · goldAbstract read
In one paragraph

Article in Heart rhythm O2, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.8field-weighted citation impact, top 8% 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

9 citing papers in PubMed, 18 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

13 authors at 1 institution in 1 country.

Mohammed Ali AzamThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Praloy ChakrabortyThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Mahmoud M BokhariThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Keith DadsonPeter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada.
Beibei DuThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Stéphane MasséThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Daoyuan SiThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Ahmed NiriThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Arjun K AggarwalThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Patrick F H LaiThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
Sheila RiaziMalignant Hyperthermia Investigation Unit, Toronto General Hospital, University Health Network, Toronto, Canada.
Filio BilliaPeter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada.
Kumaraswamy NanthakumarThe Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada.
University Health Network · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDoxorubicin (Dox) is a potent chemotherapeutic agent, but its usage is limited by dose-dependent cardiotoxicity. Intracellular calcium dysregulation has been reported to be involved in doxorubicin-induced cardiomyopathy (DICM). The cardioprotective role of RyR stabilizer dantrolene (Dan) on the calcium dynamics of DICM has not yet been explored.

objectiveTo evaluate the effects of dantrolene on intracellular calcium dysregulation and cardiac contractile function in a DICM model.

methodsAdult male C57BL/6 mice were randomized into 4 groups: (1) Control, (2) Dox Only, (3) Dan Only, and (4) Dan + Dox. Fractional shortening (FS) and left ventricular ejection fraction (LVEF) were assessed by echocardiography. In addition, mice were sacrificed 2 weeks after doxorubicin injection for optical mapping of the heart in a Langendorff setup.

resultsTreatment with Dox was associated with a reduction in both FS and LVEF at 2 weeks (

conclusionDantrolene prevents cardiac contractile dysfunction following doxorubicin treatment by mitigating dysregulation of calcium dynamics.

Indexed as

Cardiac functionCardiomyopathyDantroleneDoxorubicinMyocardial calcium transients

Identifiers

PMID34988524
PMCPMC8710625
OpenAlexW4200427283

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.