Evidence map›Paper›PMID 19652361›Full record

ArticleThe Journal of clinical investigation2009

Sirt3 blocks the cardiac hypertrophic response by augmenting Foxo3a-dependent antioxidant defense mechanisms in mice.

Nagalingam R Sundaresan, Madhu Gupta, Gene Kim, Senthilkumar B Rajamohan, Ayman Isbatan, Mahesh P Gupta

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 573 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
573citing papers in PubMed, 2 pooled it
22.1field-weighted citation impact, top 1% 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

573 citing papers in PubMed, 2 syntheses or guidelines pooled it, 982 citations in OpenAlex.

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  20. MTFR1L is a cardiac antiaging factor for maintenance of mitochondrial homeostasis.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article

513 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Nagalingam R SundaresanDepartment of Surgery, University of Chicago, Chicago, Illinois 60637, USA.
Madhu Gupta
Gene Kim
Senthilkumar B Rajamohan
Ayman Isbatan
Mahesh P Gupta
University of Chicago · USUniversity of Illinois Chicago · US

Funding

The Role of PARP-SIR2 Signaling in Heart FailureR01HL083423 · NHLBI · UNIVERSITY OF CHICAGO · PI GUPTA, MAHESH P · 2007 to 2011
$2.4M
Histone deacetylases in pathogenesis of heart failureR01HL077788 · NHLBI · UNIVERSITY OF CHICAGO · PI GUPTA, MAHESH P · 2004 to 2007
$2.0M
Alpha-Myosin Heavy Chain Gene Repression &Heart FailureR01HL068083 · NHLBI · UNIVERSITY OF CHICAGO · PI GUPTA, MAHESH P · 2001 to 2004
$1.2M
NHLBI NIH HHS HL-77788NHLBI NIH HHS HL-83423NHLBI NIH HHS R01 HL068083NHLBI NIH HHS R01 HL077788NHLBI NIH HHS R01 HL083423NHLBI NIH HHS R01 HL-68083
6 · The paper itself

Abstract

Sirtuin 3 (SIRT3) is a member of the sirtuin family of proteins that promote longevity in many organisms. Increased expression of SIRT3 has been linked to an extended life span in humans. Here, we have shown that Sirt3 protects the mouse heart by blocking the cardiac hypertrophic response. Although Sirt3-deficient mice appeared to have normal activity, they showed signs of cardiac hypertrophy and interstitial fibrosis at 8 weeks of age. Application of hypertrophic stimuli to these mice produced a severe cardiac hypertrophic response, whereas Sirt3-expressing Tg mice were protected from similar stimuli. In primary cultures of cardiomyocytes, Sirt3 blocked cardiac hypertrophy by activating the forkhead box O3a-dependent (Foxo3a-dependent), antioxidant-encoding genes manganese superoxide dismutase (MnSOD) and catalase (Cat), thereby decreasing cellular levels of ROS. Reduced ROS levels suppressed Ras activation and downstream signaling through the MAPK/ERK and PI3K/Akt pathways. This resulted in repressed activity of transcription factors, specifically GATA4 and NFAT, and translation factors, specifically eukaryotic initiation factor 4E (elf4E) and S6 ribosomal protein (S6P), which are involved in the development of cardiac hypertrophy. These results demonstrate that SIRT3 is an endogenous negative regulator of cardiac hypertrophy, which protects hearts by suppressing cellular levels of ROS.

Indexed as

AnimalsAntioxidantsBase SequenceCardiomegalyCatalaseCells, CulturedDNA PrimersForkhead Box Protein O3Forkhead Transcription FactorsHumansMiceMice, KnockoutMice, TransgenicMitochondrial ProteinsRNA, MessengerSirtuin 3AntioxidantsCatalaseDNA PrimersForkhead Box Protein O3Forkhead Transcription FactorsFoxO3 protein, mouseMitochondrial ProteinsRNA, MessengerSirt3 protein, mouseSirtuin 3SirtuinsSuperoxide Dismutase

Identifiers

PMID19652361
PMCPMC2735933
OpenAlexW2049266192

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.