Evidence map›Paper›PMID 23671593›Full record

ArticlePloS one2013

AMPK and insulin action--responses to ageing and high fat diet.

Christian Frøsig, Thomas E Jensen, Jacob Jeppesen, Christian Pehmøller, Jonas T Treebak, Stine J Maarbjerg, Jonas M Kristensen, Lykke Sylow, Thomas J Alsted, Peter Schjerling and 3 more

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 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

20 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
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  13. Diet Composition for the Management of Obesity and Obesity-related Disorders.Journal of diabetes mellitus and metabolic syndrome · 2018
    Article
  14. Review
  15. Article
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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

13 authors at 1 institution in 1 country.

Christian FrøsigSection of Molecular Physiology, The August Krogh Centre, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark. cfrosig@ifi.ku.dk
Thomas E Jensen
Jacob Jeppesen
Christian Pehmøller
Jonas T Treebak
Stine J Maarbjerg
Jonas M Kristensen
Lykke Sylow
Thomas J Alsted
Peter Schjerling
Bente Kiens
Jørgen F P Wojtaszewski
Erik A Richter
University of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The 5'-AMP-activated protein kinase (AMPK) is considered "a metabolic master-switch" in skeletal muscle reducing ATP- consuming processes whilst stimulating ATP regeneration. Within recent years, AMPK has also been proposed as a potential target to attenuate insulin resistance, although the exact role of AMPK is not well understood. Here we hypothesized that mice lacking α2AMPK activity in muscle would be more susceptible to develop insulin resistance associated with ageing alone or in combination with high fat diet. Young (∼4 month) or old (∼18 month) wild type and muscle specific α2AMPK kinase-dead mice on chow diet as well as old mice on 17 weeks of high fat diet were studied for whole body glucose homeostasis (OGTT, ITT and HOMA-IR), insulin signaling and insulin-stimulated glucose uptake in muscle. We demonstrate that high fat diet in old mice results in impaired glucose homeostasis and insulin stimulated glucose uptake in both the soleus and extensor digitorum longus muscle, coinciding with reduced insulin signaling at the level of Akt (pSer473 and pThr308), TBC1D1 (pThr590) and TBC1D4 (pThr642). In contrast to our hypothesis, the impact of ageing and high fat diet on insulin action was not worsened in mice lacking functional α2AMPK in muscle. It is concluded that α2AMPK deficiency in mouse skeletal muscle does not cause muscle insulin resistance in young and old mice and does not exacerbate obesity-induced insulin resistance in old mice suggesting that decreased α2AMPK activity does not increase susceptibility for insulin resistance in skeletal muscle.

Indexed as

Insulin ResistanceAgingAMP-Activated Protein KinasesAnimalsArea Under CurveBlood GlucoseBody CompositionDiet, High-FatGlucose Tolerance TestGlucose Transporter Type 4GTPase-Activating ProteinsHexokinaseHomeostasisInsulinMaleMiceAMP-Activated Protein KinasesBlood GlucoseGlucose Transporter Type 4GTPase-Activating ProteinsHexokinaseInsulinMuscle ProteinsPrkaa2 protein, mouseProto-Oncogene Proteins c-aktSlc2a4 protein, mouseTbc1d4 protein, mouse

Identifiers

PMID23671593
PMCPMC3645997
OpenAlexW2011642752

What OpenQuestion holds

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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.