Evidence map›Paper›PMID 19651811›Full record

ArticleDiabetes2009

Reductive metabolism of AGE precursors: a metabolic route for preventing AGE accumulation in cardiovascular tissue.

Shahid P Baba, Oleg A Barski, Yonis Ahmed, Timothy E O'Toole, Daniel J Conklin, Aruni Bhatnagar, Sanjay Srivastava

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
5.7field-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

53 citing papers in PubMed, 117 citations in OpenAlex.

  1. Trial
  2. Review
  3. Glyoxalase 1 is a proadipogenic gene.The Journal of biological chemistry · 2025
    Article
  4. Review
  5. Dual roles of methylglyoxal in cancer.Frontiers in oncology · 2025
    Review
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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

7 authors at 1 institution in 1 country.

Shahid P BabaDiabetes and Obesity Center, University of Louisville, Louisville, Kentucky, USA.
Oleg A Barski
Yonis Ahmed
Timothy E O'Toole
Daniel J Conklin
Aruni Bhatnagar
Sanjay Srivastava
University of Louisville · US

Funding

STEM CELLS AND DIABETIC CARDIOMYOPATHY PROJ 2 2009P20RR024489 · NCRR · UNIVERSITY OF LOUISVILLE · PI HILL, BRADFORD GUY · 2008 to 2011
$10.0M
TOXICITY OF 4-HYDROXYALKENALS IN HEARTR01HL055477 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI BHATNAGAR, ARUNI · 1997 to 2015
$4.4M
CARDIAC METABOLISM OF ENALSR01HL059378 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI BHATNAGAR, ARUNI · 1998 to 2011
$3.3M
Cardioprotective Mechanisms of Glutathione S-transferase PR01HL089380 · NHLBI · UNIVERSITY OF LOUISVILLE · PI CONKLIN, DANIEL JOSEPH · 2008 to 2012
$2.1M
Atherogenic Mechanisms of ArsenicR01ES017260 · NIEHS · UNIVERSITY OF LOUISVILLE · PI SRIVASTAVA, SANJAY · 2009 to 2013
$1.6M
SOMATOVISCERAL INTEGRATION IN NUCLEUS TRACTUS SOLITARIUSF32HL008930 · NHLBI · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI TONEY, GLENN M · 1993 to 1995
–
NCRR NIH HHS P20 RR024489NCRR NIH HHS RR-024489NHLBI NIH HHS HL-55477NHLBI NIH HHS HL-59378NHLBI NIH HHS HL-8930-0281NHLBI NIH HHS HL-89380NHLBI NIH HHS R01 HL055477NHLBI NIH HHS R01 HL059378NHLBI NIH HHS R01 HL089380NIEHS NIH HHS ES-17260NIEHS NIH HHS R01 ES017260
6 · The paper itself

Abstract

objectiveTo examine the role of aldo-keto reductases (AKRs) in the cardiovascular metabolism of the precursors of advanced glycation end products (AGEs). RESEARCH DESIGN AND

methodsSteady-state kinetic parameters of AKRs with AGE precursors were determined using recombinant proteins expressed in bacteria. Metabolism of methylglyoxal and AGE accumulation were studied in human umbilical vein endothelial cells (HUVECs) and C57 wild-type, akr1b3 (aldose reductase)-null, cardiospecific-akr1b4 (rat aldose reductase), and akr1b8 (FR-1)-transgenic mice. AGE accumulation and atherosclerotic lesions were studied 12 weeks after streptozotocin treatment of C57, akr1b3-null, and apoE- and akr1b3-apoE-null mice.

resultsHigher levels of AGEs were generated in the cytosol than at the external surface of HUVECs cultured in high glucose, indicating that intracellular metabolism may be an important regulator of AGE accumulation and toxicity. In vitro, AKR 1A and 1B catalyzed the reduction of AGE precursors, whereas AKR1C, AKR6, and AKR7 were relatively ineffective. Highest catalytic efficiency was observed with AKR1B1. Acetol formation in methylglyoxal-treated HUVECs was prevented by the aldose reductase inhibitor sorbinil. Acetol was generated in hearts perfused with methylglyoxal, and its formation was increased in akr1b4- or akr1b8-transgenic mice. Reduction of AGE precursors was diminished in hearts from akr1b3-null mice. Diabetic akr1b3-null mice accumulated more AGEs in the plasma and the heart than wild-type mice, and deletion of akr1b3 increased AGE accumulation and atherosclerotic lesion formation in apoE-null mice.

conclusionsAldose reductase-catalyzed reduction is an important pathway in the endothelial and cardiac metabolism of AGE precursors, and it prevents AGE accumulation and atherosclerotic lesion formation.

Indexed as

Aldehyde ReductaseAnimalsApolipoproteins EEndothelium, VascularGlycation End Products, AdvancedHumansKineticsLipidsMiceMice, Inbred C57BLMice, KnockoutMyocardiumOxidation-ReductionPyruvaldehydeUmbilical VeinsAldehyde ReductaseApolipoproteins EGlycation End Products, AdvancedLipidsPyruvaldehyde

Identifiers

PMID19651811
PMCPMC2768164
OpenAlexW2151937530

What OpenQuestion holds

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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.