Evidence map›Paper›PMID 23940800›Full record

ArticlePloS one2013

Genetic inactivation of pyruvate dehydrogenase kinases improves hepatic insulin resistance induced diabetes.

Rongya Tao, Xiwen Xiong, Robert A Harris, Morris F White, Xiaocheng C Dong

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

43 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
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  8. Metabolic Inflexibility as a Pathogenic Basis for Atrial Fibrillation.International journal of molecular sciences · 2022
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  10. Dynamic Mitochondrial Proteome Under Polyamines Treatment in Cardiac Aging.Frontiers in cell and developmental biology · 2022
    Article
  11. Article
  12. Article
  13. Hepatocyte-SpecificNutrients · 2021
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article
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

5 authors at 3 institutions in 1 country.

Rongya TaoDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America.
Xiwen Xiong
Robert A Harris
Morris F White
Xiaocheng C Dong
Indiana University – Purdue University Indianapolis · USHarvard University · USRichard L. Roudebush VA Medical Center · US

Funding

Regulating IRS-proteins by Ser/Thr PhosphorylationR01DK038712 · NIDDK · JOSLIN DIABETES CENTER · PI WHITE, MORRIS F. · 1992 to 2014
$5.0M
Metabolic Crosstalk During Hepatic Insulin ResistanceR01DK098655 · NIDDK · BOSTON CHILDREN'S HOSPITAL · PI WHITE, MORRIS F. · 2013 to 2020
$4.0M
Role of Pyruvate Dehydrogenase Kinases in Glucose HomeostasisR00DK077505 · NIDDK · INDIANA UNIVERSITY INDIANAPOLIS · PI DONG, X. CHARLIE · 2009 to 2011
$816k
Role of Pyruvate Dehydrogenase Kinases in Glucose HomeostasisK99DK077505 · NIDDK · BOSTON CHILDREN'S HOSPITAL · PI DONG, X. CHARLIE · 2007 to 2008
$180k
NIDDK NIH HHS K99 DK077505NIDDK NIH HHS R00 DK077505NIDDK NIH HHS R00DK077505NIDDK NIH HHS R01 DK038712NIDDK NIH HHS R01 DK098655
6 · The paper itself

Abstract

Pyruvate dehydrogenase kinases (PDK1-4) play a critical role in the inhibition of the mitochondrial pyruvate dehydrogenase complex especially when blood glucose levels are low and pyruvate can be conserved for gluconeogenesis. Under diabetic conditions, the Pdk genes, particularly Pdk4, are often induced, and the elevation of the Pdk4 gene expression has been implicated in the increased gluconeogenesis in the liver and the decreased glucose utilization in the peripheral tissues. However, there is no direct evidence yet to show to what extent that the dysregulation of hepatic Pdk genes attributes to hyperglycemia and insulin resistance in vivo. To address this question, we crossed Pdk2 or Pdk4 null mice with a diabetic model that is deficient in hepatic insulin receptor substrates 1 and 2 (Irs1/2). Metabolic analyses reveal that deletion of the Pdk4 gene had better improvement in hyperglycemia and glucose tolerance than knockout of the Pdk2 gene whereas the Pdk2 gene deletion showed better insulin tolerance as compared to the Pdk4 gene inactivation on the Irs1/2 knockout genetic background. To examine the specific hepatic effects of Pdks on diabetes, we also knocked down the Pdk2 or Pdk4 gene using specific shRNAs. The data also indicate that the Pdk4 gene knockdown led to better glucose tolerance than the Pdk2 gene knockdown. In conclusion, our data suggest that hepatic Pdk4 may be critically involved in the pathogenesis of diabetes.

Indexed as

AnimalsDiabetes Mellitus, ExperimentalGene Expression Regulation, EnzymologicGene SilencingGlucose IntoleranceGlucose Tolerance TestInsulin Receptor Substrate ProteinsInsulin ResistanceLiverMiceMice, KnockoutOrgan SpecificityProtein Serine-Threonine KinasesPyruvate Dehydrogenase Acetyl-Transferring KinaseInsulin Receptor Substrate ProteinsIrs1 protein, mouseIrs2 protein, mousePdk1 protein, mousePdk2 protein, mousePdk4 protein, mouseProtein Serine-Threonine KinasesPyruvate Dehydrogenase Acetyl-Transferring Kinase

Identifiers

PMID23940800
PMCPMC3733847
OpenAlexW2135003415

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.