Evidence map›Paper›PMID 22961081›Full record

ArticleDiabetes2012

Overexpression of sphingosine kinase 1 prevents ceramide accumulation and ameliorates muscle insulin resistance in high-fat diet-fed mice.

Clinton R Bruce, Steve Risis, Joanne R Babb, Christine Yang, Greg M Kowalski, Ahrathy Selathurai, Robert S Lee-Young, Jacquelyn M Weir, Kazuaki Yoshioka, Yoh Takuwa and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
4.7field-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

81 citing papers in PubMed, 139 citations in OpenAlex.

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  10. Sphingosine 1-Phosphate Regulates Obesity and Glucose Homeostasis.International journal of molecular sciences · 2024
    Review
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21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 2 countries.

Clinton R BruceCellular and Molecular Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia.
Steve Risis
Joanne R Babb
Christine Yang
Greg M Kowalski
Ahrathy Selathurai
Robert S Lee-Young
Jacquelyn M Weir
Kazuaki Yoshioka
Yoh Takuwa
Peter J Meikle
Stuart M Pitson
Mark A Febbraio
Baker Heart and Diabetes Institute · AUKanazawa University · JPMonash University · AUCentre for Cancer Biology · AU

Funding

Wellcome Trust 098017
6 · The paper itself

Abstract

The sphingolipids sphingosine-1-phosphate (S1P) and ceramide are important bioactive lipids with many cellular effects. Intracellular ceramide accumulation causes insulin resistance, but sphingosine kinase 1 (SphK1) prevents ceramide accumulation, in part, by promoting its metabolism into S1P. Despite this, the role of SphK1 in regulating insulin action has been largely overlooked. Transgenic (Tg) mice that overexpress SphK1 were fed a standard chow or high-fat diet (HFD) for 6 weeks before undergoing several metabolic analyses. SphK1 Tg mice fed an HFD displayed increased SphK activity in skeletal muscle, which was associated with an attenuated intramuscular ceramide accumulation compared with wild-type (WT) littermates. This was associated with a concomitant reduction in the phosphorylation of c-jun amino-terminal kinase, a serine threonine kinase associated with insulin resistance. Accordingly, skeletal muscle and whole-body insulin sensitivity were improved in SphK1 Tg, compared with WT mice, when fed an HFD. We have identified that the enzyme SphK1 is an important regulator of lipid partitioning and insulin action in skeletal muscle under conditions of increased lipid supply.

Indexed as

AnimalsBlotting, WesternCeramidesDiet, High-FatInsulin ResistanceMiceMuscle, SkeletalPhosphotransferases (Alcohol Group Acceptor)Polymerase Chain ReactionSphingosine KinaseCeramidesPhosphotransferases (Alcohol Group Acceptor)Sphingosine Kinase

Identifiers

PMID22961081
PMCPMC3501880
OpenAlexW2135346216

What OpenQuestion holds

Textmetadata
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.