Evidence map›Paper›PMID 24526702›Full record

ArticleCirculation research2014

Activation of AKT by O-linked N-acetylglucosamine induces vascular calcification in diabetes mellitus.

Jack M Heath, Yong Sun, Kaiyu Yuan, Wayne E Bradley, Silvio Litovsky, Louis J Dell'Italia, John C Chatham, Hui Wu, Yabing Chen

Open access · bronzeAbstract read
In one paragraph

Article in Circulation research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 104 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
104citing papers in PubMed, 1 pooled it
5.6field-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

104 citing papers in PubMed, 1 synthesis or guideline pooled it, 163 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Peripheral Vascular Calcification.Arteriosclerosis, thrombosis, and vascular biology · 2026
    Review
  11. Review
  12. Article
  13. Review
  14. O-GlcNAcase Inhibitor Improves Denervation-Induced Muscle Atrophy in Mice.Journal of cachexia, sarcopenia and muscle · 2025
    Article
  15. Review
  16. Article
  17. Article
  18. Article
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  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 2 countries.

Jack M HeathFrom the Departments of Pathology (J.M.H., Y.S., K.Y., S.L., J.C.C., Y.C.), Medicine (W.E.B., L.J.D'I.), and Pediatric Dentistry (H.W.), University of Alabama at Birmingham; and Veterans Affairs, Department of Research Service, Birmingham, AL (L.J.D'I., Y.C.).
Yong Sun
Kaiyu Yuan
Wayne E Bradley
Silvio Litovsky
Louis J Dell'Italia
John C Chatham
Hui Wu
Yabing Chen
Birmingham VA Medical Center · US

Funding

Molecular Signaling in Oxidative Stress-induced Vascular CalcificationR01HL092215 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI CHEN, YABING · 2009 to 2018
$3.6M
Protein O-GlcNAcylation and the regulation of cardiac functionR01HL101192 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI CHATHAM, JOHN C · 2010 to 2014
$1.5M
O-GlcNAcylation regulates vascular smooth muscle cells in diabetic vasculopathyR01DK100847 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI CHEN, YABING · 2014 to 2017
$1.3M
STIM1 mediated calcium entry: A new paradigm of metabolic regulation of cardiomyoR21HL110366 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI CHATHAM, JOHN C · 2012 to 2013
$407k
Toll-like receptor signaling in pathogenesis of pulmonary hypertensionI01BX000369 · VA · BIRMINGHAM VA MEDICAL CENTER · PI CHEN, YABING · 2009 to 2013
–
Novel Regulators of Vascular DiseaseIP1BX001595 · VA · BIRMINGHAM VA MEDICAL CENTER · PI AGARWAL, ANUPAM, CHEN, YABING · 2013 to 2016
–
BLRD VA I01 BX000369BLRD VA IP1 BX001595NHLBI NIH HHS HL092215NHLBI NIH HHS HL101192NHLBI NIH HHS HL110366NHLBI NIH HHS R01 HL092215NHLBI NIH HHS R01 HL101192NHLBI NIH HHS R21 HL110366NIDDK NIH HHS DK100847NIDDK NIH HHS R01 DK100847
6 · The paper itself

Abstract

rationaleVascular calcification is a serious cardiovascular complication that contributes to the increased morbidity and mortality of patients with diabetes mellitus. Hyperglycemia, a hallmark of diabetes mellitus, is associated with increased vascular calcification and increased modification of proteins by O-linked N-acetylglucosamine (O-GlcNAcylation).

objectiveWe sought to determine the role of protein O-GlcNAcylation in regulating vascular calcification and the underlying mechanisms. METHODS AND

resultsLow-dose streptozotocin-induced diabetic mice exhibited increased aortic O-GlcNAcylation and vascular calcification, which was also associated with impaired aortic compliance in mice. Elevation of O-GlcNAcylation by administration of Thiamet-G, a potent inhibitor for O-GlcNAcase that removes O-GlcNAcylation, further accelerated vascular calcification and worsened aortic compliance of diabetic mice in vivo. Increased O-GlcNAcylation, either by Thiamet-G or O-GlcNAcase knockdown, promoted calcification of primary mouse vascular smooth muscle cells. Increased O-GlcNAcylation in diabetic arteries or in the O-GlcNAcase knockdown vascular smooth muscle cell upregulated expression of the osteogenic transcription factor Runx2 and enhanced activation of AKT. O-GlcNAcylation of AKT at two new sites, T430 and T479, promoted AKT phosphorylation, which in turn enhanced vascular smooth muscle cell calcification. Site-directed mutation of AKT at T430 and T479 decreased O-GlcNAcylation, inhibited phosphorylation of AKT at S473 and binding of mammalian target of rapamycin complex 2 to AKT, and subsequently blocked Runx2 transactivity and vascular smooth muscle cell calcification.

conclusionsO-GlcNAcylation of AKT at 2 new sites enhanced AKT phosphorylation and activation, thus promoting vascular calcification. Our studies have identified a novel causative effect of O-GlcNAcylation in regulating vascular calcification in diabetes mellitus and uncovered a key molecular mechanism underlying O-GlcNAcylation-mediated activation of AKT.

Indexed as

AcetylglucosamineAnimalsAortabeta-N-AcetylhexosaminidasesCore Binding Factor Alpha 1 SubunitDiabetes Mellitus, ExperimentalGlycosylationMechanistic Target of Rapamycin Complex 2MiceMice, Inbred C57BLMultiprotein ComplexesMuscle, Smooth, VascularPhosphorylationProtein BindingProto-Oncogene Proteins c-aktPyransAcetylglucosaminebeta-N-AcetylhexosaminidasesCore Binding Factor Alpha 1 Subunithexosaminidase CMechanistic Target of Rapamycin Complex 2Multiprotein ComplexesProto-Oncogene Proteins c-aktPyransthiamet GThiazolesTOR Serine-Threonine Kinasesdiabetes mellitusmyocytes, smooth musclevascular calcification

Identifiers

PMID24526702
PMCPMC4030422
OpenAlexW2096742261

What OpenQuestion holds

Textmetadata
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Read underepoch 390

Registered trials

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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.