Evidence map›Paper›PMID 20542299›Full record

ArticleThe Journal of thoracic and cardiovascular surgery2010

Is hyperglycemia bad for the heart during acute ischemia?

Louis M Chu, Robert M Osipov, Michael P Robich, Jun Feng, Shizu Oyamada, Cesario Bianchi, Frank W Sellke

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of thoracic and cardiovascular surgery, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.1field-weighted citation impact, top 12% 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, 25 citations in OpenAlex.

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  14. The diabetic heart: too sweet for its own good?Cardiology research and practice · 2012
    Article
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  17. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Louis M ChuDepartment of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass, USA.
Robert M Osipov
Michael P Robich
Jun Feng
Shizu Oyamada
Cesario Bianchi
Frank W Sellke
Beth Israel Deaconess Medical Center · USRhode Island Hospital · US

Funding

HARVARD-LONGWOOD RESEARCH TRAINING IN VASCULAR SURGERYT32HL007734 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI FERRAN, CHRISTIANE, LOGERFO, FRANK W · 1993 to 2023
$10.5M
Effect of Cardioplegia and Cardiopulmonary Bypass on Coronary Microvascular ReactivityR01HL046716 · NHLBI · RHODE ISLAND HOSPITAL · PI SELLKE, FRANK W · 1997 to 2023
$8.5M
Surgical Intramyocardial Angiogenesis in a Swine Model of Endothelial DysfunctionR01HL069024 · NHLBI · RHODE ISLAND HOSPITAL · PI SELLKE, FRANK W · 2002 to 2011
$3.7M
Cardiovascular Surgery Research Training GrantT32HL076130 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI SELLKE, FRANK W · 2004 to 2008
$941k
Angiogenesis in a model of diabetes and endothelial dysfunctionR01HL085647 · NHLBI · RHODE ISLAND HOSPITAL · PI SELLKE, FRANK W · 2008 to 2009
$926k
NHLBI NIH HHS HL69024NHLBI NIH HHS HL85647NHLBI NIH HHS R01 HL046716NHLBI NIH HHS R01 HL069024NHLBI NIH HHS R01 HL085647NHLBI NIH HHS R01 HL46716NHLBI NIH HHS T32HL007734NHLBI NIH HHS T32 HL076130NHLBI NIH HHS T32-HL076130
6 · The paper itself

Abstract

objectiveThis study investigates the impact of diabetes on myocardium in the setting of acute ischemia-reperfusion in a porcine model.

methodsIn normoglycemic (ND group) and alloxan-induced diabetic (DM group) male Yucatan pigs, the left anterior descending coronary artery territory was made ischemic and then reperfused. Hemodynamic values and myocardial function were measured. Monastryl blue and triphenyl tetrazolium chloride staining were used to assess size of the areas at risk and infarction. Glycogen content was assessed using periodic acid-Schiff staining. Cell death and survival signaling pathways were assessed by immunoblotting.

resultsMean arterial pressure and developed left ventricular pressure were lower in the DM group (P < .05). Whereas global left ventricular function was worse in the DM group (P < .05), regional function in the area at risk was improved on the horizontal axis (P < .05). Mean infarct size was smaller in the DM versus the ND group (19% vs 43%; P < .05), whereas the area at risk was similar in both groups (34% vs 36%; P = .7). Ischemic myocardium in the DM group displayed more prominent staining for glycogen compared with the ND group. In the area at risk, expression of cell survival proteins including phosphorylated endothelial nitric oxide synthase (0.17 ± 0.04 vs 0.04 ± 0.01; P < .05), heat shock protein 27 (0.7 ± 0.2 vs 0.3 ± 0.1; P < .05), nuclear factor-κB (0.14 ± 0.02 vs 0.03 ± 0.01; P < .05), and mammalian target of rapamycin (0.35 ± 0.05 vs 0.15 ± 0.02; P < .05) were higher in DM animals, whereas in nonischemic tissue, expression of these proteins was similar or lower in the DM group.

conclusionsAlthough type I diabetes worsens global left ventricular function, it is protective in the ischemic area, leading to increased expression of cell survival proteins and decreased infarct size.

Indexed as

Analysis of VarianceAnimalsApoptosisBlotting, WesternDiabetes Mellitus, ExperimentalHemodynamicsMaleMitogen-Activated Protein Kinase 1Myocardial InfarctionMyocardiumSignal TransductionStaining and LabelingSwineMitogen-Activated Protein Kinase 1

Identifiers

PMID20542299
PMCPMC2949689
OpenAlexW1974351424

What OpenQuestion holds

Textmetadata
LicenceTDM
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.