Evidence map›Paper›PMID 14575305›Full record

ArticleMolecular and cellular biochemistry2003

Matrix metalloproteinase inhibitors attenuate endotoxemia induced cardiac dysfunction: a potential role for MMP-9.

Manoj M Lalu, Cindy Q Gao, Richard Schulz

Abstract readComparative Study
PubMed
In one paragraph

Article in Molecular and cellular biochemistry, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.1field-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

17 citing papers in PubMed, 201 citations in OpenAlex.

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  11. Sepsis-induced cardiomyopathy.Current cardiology reviews · 2011
    Review
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  13. Review
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  15. Article
  16. Article
  17. Molecular events in the cardiomyopathy of sepsis.Molecular medicine (Cambridge, Mass.)
    Review
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

3 authors at 2 institutions in 2 countries.

Manoj M LaluDepartment of Pharmacology, Cardiovascular Research Group, University of Alberta, Edmonton, Alberta, Canada.
Cindy Q Gao
Richard Schulz
University of Alberta · CAHeritage Foundation · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enhanced cardiac generation of peroxynitrite contributes to septic cardiomyopathy. Since matrix metalloproteinases (MMPs) are activated in vitro by peroxynitrite, we hypothezised that MMPs may contribute to cardiac mechanical dysfunction in sepsis. Rats were injected (i.p.) with either lipopolysaccharide (LPS, 4 mg/kg) or vehicle. MMP inhibitors, either Ro 31-9790 (20 mg/kg), doxycycline (4 mg/kg), or vehicle were administered i.p. 30 min after LPS. At 6 h, when the symptoms of endotoxemia peak, hearts were excised and perfused as working hearts with Krebs-Henseleit buffer at 37 degrees C. Cardiac work (cardiac output x peak systolic pressure product) was measured. Perfusate and ventricle samples were analyzed by gelatin zymography to quantify MMP activity. Cardiac function was significantly depressed in LPS-treated rats compared to control rats (control: 55 +/- 4, LPS: 26 +/- 6 mmHg*mL*min(-1)). LPS also caused a loss of 72 kDa MMP-2 activity in the ventricles and the perfusate. Although MMP-9 activity was not detected in the ventricles, LPS resulted in an increase in perfusate 92 kDa MMP-9 activity. The MMP inhibitors significantly improved cardiac function of LPS-treated rats (Ro 31-9790: 38 +/- 3, doxycycline: 51 +/- 3 mmHg*mL*min(-1)), had no effect on the loss of MMP-2 activity, and significantly reduced the MMP-9 activity in the perfusate. These results demonstrate, for the first time, that LPS induced cardiac dysfunction is associated with a loss in ventricular MMP-2 activity and the release of MMP-9 from the heart. MMP inhibitors can significantly preserve cardiac mechanical function during septic shock.

Indexed as

Matrix Metalloproteinase InhibitorsAnimalsBlood PressureCardiac OutputCardiomyopathiesDoxycyclineElectrophoresis, Polyacrylamide GelEndotoxemiaEnzyme ActivationHydroxamic AcidsInjections, IntraperitonealLipopolysaccharidesMaleMatrix Metalloproteinase 9Matrix MetalloproteinasesPerfusionDoxycyclineHydroxamic AcidsLipopolysaccharidesMatrix Metalloproteinase 9Matrix Metalloproteinase InhibitorsMatrix MetalloproteinasesRo 31-9790

Identifiers

PMID14575305
OpenAlexW1550830769

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.