Evidence map›Paper›PMID 18691597›Full record

ArticleJournal of molecular and cellular cardiology2008

Troponin phosphorylation and myofilament Ca2+-sensitivity in heart failure: increased or decreased?

Steven B Marston, Pieter P de Tombe

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular and cellular cardiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

51 citing papers in PubMed, 74 citations in OpenAlex.

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  10. Treatments targeting inotropy.European heart journal · 2019
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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

2 authors at 2 institutions in 2 countries.

Steven B MarstonCardiovascular Science, National Heart and Lung Institute, Imperial College London, Dovehouse Street, London SW36LY, UK. s.marston@imperial.ac.uk
Pieter P de Tombe
Imperial College London · GBUniversity of Illinois Chicago · US

Funding

Sarcomeric Modifications and Progressive Cardiac MaladaptationP01HL062426 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI SOLARO, R JOHN · 2000 to 2020
$42.4M
Myofilament Function in Human Heart FailureR01HL077195 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI BUTTRICK, PETER N. · 2005 to 2008
$1.8M
NHLBI NIH HHS P01 HL062426NHLBI NIH HHS R01 HL077195
6 · The paper itself

Abstract

Heart failure is characterised by depressed myocyte contractility and is considered to involve a complex malfunction of adrenergic regulation, Ca2+-handling and the contractile apparatus. Most studies on the contractile apparatus have focussed on troponin, the Ca2+-dependent regulator of myofibrillar activity. Importantly, phosphorylation of troponin I secondary to beta-adrenergic receptor activation is known to induce reduced myofilament Ca2+ sensitivity. In muscle samples from explanted failing human hearts, troponin I phosphorylation levels are very low and Ca2+-sensitivity is high. In contrast, some animal models used to study the mechanisms of heart failure give the opposite result-high levels of troponin I phosphorylation and low Ca2+-sensitivity. Which is right?

Indexed as

PhosphorylationActin CytoskeletonAnimalsBiochemistryCalciumCardiologyDisease Models, AnimalHeart FailureHumansMuscle ContractionMusclesReceptors, Adrenergic, betaTroponinCalciumReceptors, Adrenergic, betaTroponin

Identifiers

PMID18691597
PMCPMC2610448
OpenAlexW1979622294

What OpenQuestion holds

Textmetadata
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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.