Evidence map›Paper›PMID 23031259›Full record

ArticleThe American journal of pathology2012

Short-term akt activation in cardiac muscle cells improves contractile function in failing hearts.

Ichiro Shiojima, Stephan Schiekofer, Jochen G Schneider, Kurt Belisle, Kaori Sato, Martin Andrassy, Gennaro Galasso, Kenneth Walsh

Open access · hybridAbstract read
In one paragraph

Article in The American journal of pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 34 citations in OpenAlex.

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  6. Interleukin 4/13 signaling in cardiac regeneration and repair.American journal of physiology. Heart and circulatory physiology · 2022
    Review
  7. The female syndecan-4Frontiers in cell and developmental biology · 2022
    Article
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  12. Observational
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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

8 authors at 4 institutions in 4 countries.

Ichiro ShiojimaMolecular Cardiology/Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA.
Stephan Schiekofer
Jochen G Schneider
Kurt Belisle
Kaori Sato
Martin Andrassy
Gennaro Galasso
Kenneth Walsh
Boston University · USUniversity Hospital Regensburg · DEHeidelberg University · DEOsaka University · JP

Funding

SIRT1, Polyphenols, and Endothelial OxidantsP01HL068758 · NHLBI · BOSTON MEDICAL CENTER · PI WALSH, KENNETH · 2003 to 2013
$14.1M
REGULATION OF VESSEL WALL APOPTOSISR37AG015052 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WALSH, KENNETH · 2003 to 2012
$4.0M
Muscle loss and metabolic dysfunction associated with agingR01AG034972 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WALSH, KENNETH · 2010 to 2014
$1.6M
REGULATION OF VESSEL WALL APOPTOSISR01AG015052 · NIA · CARITAS ST. ELIZABETH'S MEDICAL CENTER · PI WALSH, KENNETH · 1998 to 2002
$1.0M
Mitochondrial Fusion and Cardiac FunctionR21HL102874 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WALSH, KENNETH · 2010 to 2011
$448k
NHLBI NIH HHS HL102874NHLBI NIH HHS HL68758NHLBI NIH HHS P01 HL068758NHLBI NIH HHS R21 HL102874NIA NIH HHS AG15052NIA NIH HHS AG34972NIA NIH HHS R01 AG015052NIA NIH HHS R01 AG034972NIA NIH HHS R37 AG015052
6 · The paper itself

Abstract

Akt is a serine/threonine protein kinase that is activated by a variety of growth factors or cytokines in a phosphatidylinositol 3-kinase-dependent manner. By using a conditional transgenic system in which Akt signaling can be turned on or off in the adult heart, we previously showed that short-term Akt activation induces a physiological form of cardiac hypertrophy with enhanced coronary angiogenesis and maintained contractility. Here we tested the hypothesis that induction of physiological hypertrophy by short-term Akt activation might improve contractile function in failing hearts. When Akt signaling transiently was activated in murine hearts with impaired contractility, induced by pressure overload or doxorubicin treatment, contractile dysfunction was attenuated in both cases. Importantly, improvement of contractility was observed before the development of cardiac hypertrophy, indicating that Akt activation improves contractile function independently of its growth-promoting effects. To gain mechanistic insights into Akt-mediated positive inotropic effects, transcriptional profiles in the heart were determined in a pressure overload-induced heart failure model. Biological network analysis of differentially expressed transcripts revealed significant alterations in the expression of genes associated with cell death, and these alterations were reversed by short-term Akt activation. Thus, short-term Akt activation improves contractile function in failing hearts. This beneficial effect of Akt on contractility is hypertrophy-independent and may be mediated in part by inhibition of cell death associated with heart failure.

Indexed as

Myocardial ContractionAnimalsAortaConstriction, PathologicDoxorubicinEnzyme ActivationGene Expression ProfilingHeart FailureMiceMyocytes, CardiacOligonucleotide Array Sequence AnalysisProto-Oncogene Proteins c-aktReproducibility of ResultsRNA, MessengerTranscriptomeDoxorubicinProto-Oncogene Proteins c-aktRNA, Messenger

Identifiers

PMID23031259
PMCPMC3509766
OpenAlexW2146101679

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.