Evidence map›Paper›PMID 22344560›Full record

ArticleDiabetes2012

Metformin prevents the development of chronic heart failure in the SHHF rat model.

Antonio Cittadini, Raffaele Napoli, Maria Gaia Monti, Domenica Rea, Salvatore Longobardi, Paolo Antonio Netti, Marion Walser, Mariateresa Samà, Gianluca Aimaretti, Jörgen Isgaard and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Diabetes, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

52 citing papers in PubMed, 127 citations in OpenAlex.

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  9. Cardiometabolic Dysregulation and Heart Failure.Reviews in cardiovascular medicine · 2025
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  14. Article
  15. Article
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  18. The Hormetic Effect of Metformin: "Less Is More"?International journal of molecular sciences · 2021
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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

11 authors at 4 institutions in 2 countries.

Antonio CittadiniDepartment of Clinical Medicine and Cardiovascular and ImmunologicalSciences, University Federico II, Naples, Italy.
Raffaele Napoli
Maria Gaia Monti
Domenica Rea
Salvatore Longobardi
Paolo Antonio Netti
Marion Walser
Mariateresa Samà
Gianluca Aimaretti
Jörgen Isgaard
Luigi Saccà
Federico II University Hospital · ITUniversity of Gothenburg · SECenter for Advanced Biomaterials for Healthcare · ITMerck Serono (Italy) · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Insulin resistance is a recently identified mechanism involved in the pathophysiology of chronic heart failure (CHF). We investigated the effects of two insulin-sensitizing drugs (metformin and rosiglitazone) in a genetic model of spontaneously hypertensive, insulin-resistant rats (SHHF). Thirty SHHF rats were randomized into three treatment groups as follows: 1) metformin (100 mg/kg per day), 2) rosiglitazone (2 mg/kg per day), and 3) no drug. Ten Sprague-Dawley rats served as normal controls. At the end of the treatment period (12 months), the cardiac phenotype was characterized by histology, echocardiography, and isolated perfused heart studies. Metformin attenuated left ventricular (LV) remodeling, as shown by reduced LV volumes, wall stress, perivascular fibrosis, and cardiac lipid accumulation. Metformin improved both systolic and diastolic indices as well as myocardial mechanical efficiency, as shown by improved ability to convert metabolic energy into mechanical work. Metformin induced a marked activation of AMP-activated protein kinase, endothelial nitric oxide synthase, and vascular endothelial growth factor and reduced tumor necrosis factor-α expression and myocyte apoptosis. Rosiglitazone did not affect LV remodeling, increased perivascular fibrosis, and promoted further cardiac lipid accumulation. In conclusion, long-term treatment with metformin, but not with rosiglitazone, prevents the development of severe CHF in the SHHF model by a wide-spectrum interaction that involves molecular, structural, functional, and metabolic-energetic mechanisms.

Indexed as

Insulin ResistanceAnimalsBlood GlucoseBlood PressureChronic DiseaseGene Expression RegulationHeart FailureHypoglycemic AgentsInsulinMetforminRatsRats, Inbred SHRRats, Sprague-DawleyRosiglitazoneThiazolidinedionesVascular Endothelial Growth Factor ABlood GlucoseHypoglycemic AgentsInsulinMetforminRosiglitazoneThiazolidinedionesVascular Endothelial Growth Factor Avascular endothelial growth factor A, ratVascular Endothelial Growth Factor Receptor-2

Identifiers

PMID22344560
PMCPMC3314362
OpenAlexW2096987850

What OpenQuestion holds

Texttitle and abstract
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.