Evidence map›Paper›PMID 27230889›Full record

ArticleBMC nephrology2016

Gas6 protein: its role in cardiovascular calcification.

Nadine Kaesler, Svenja Immendorf, Chun Ouyang, Marjolein Herfs, Nadja Drummen, Peter Carmeliet, Cees Vermeer, Jürgen Floege, Thilo Krüger, Georg Schlieper

Open access · goldAbstract read
In one paragraph

Article in BMC nephrology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

  1. Trial
  2. Review
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  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Sirtuin-1 and Its Relevance in Vascular Calcification.International journal of molecular sciences · 2020
    Review
  11. Vitamin K Dependent Proteins in Kidney Disease.International journal of molecular sciences · 2019
    Review
  12. Article
  13. Article
  14. Review
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

10 authors at 3 institutions in 3 countries.

Nadine KaeslerUniklinik RWTH Aachen, Nephrology, Aachen, Germany. nkaesler@ukaachen.de.
Svenja ImmendorfUniklinik RWTH Aachen, Nephrology, Aachen, Germany.
Chun OuyangUniklinik RWTH Aachen, Nephrology, Aachen, Germany.
Marjolein HerfsUniversity of Maastricht, R&D Group, Maastricht, Netherlands.
Nadja DrummenUniversity of Maastricht, R&D Group, Maastricht, Netherlands.
Peter CarmelietUniversity of Leuven, Vesalius Research Center, VIB, Leuven, Belgium.
Cees VermeerUniversity of Maastricht, R&D Group, Maastricht, Netherlands.
Jürgen FloegeUniklinik RWTH Aachen, Nephrology, Aachen, Germany.
Thilo KrügerUniklinik RWTH Aachen, Nephrology, Aachen, Germany.
Georg SchlieperUniklinik RWTH Aachen, Nephrology, Aachen, Germany.
Universitätsklinikum Aachen · DEMaastricht University · NLKU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCardiovascular calcifications can be prevented by vitamin K and are accelerated by vitamin K antagonists. These effects are believed to be mainly mediated by the vitamin K-dependent matrix Gla protein. Another vitamin K-dependent protein, Gas6, is also expressed in vascular smooth muscle cells (VSMC). In vitro Gas6 expression was shown to be regulated in VSMC calcification and apoptotic processes.

methodsWe investigated the role of Gas6 in vitro using VSMC cultures and in vivo in young and old Gas6-deficient (Gas6(-/-)) and wildtype (WT) mice. In addition, Gas6(-/-) and WT mice were challenged by (a) warfarin administration, (b) uninephrectomy (UniNX) plus high phosphate diet, or (c) UniNX plus high phosphate plus electrocautery of the residual kidney.

resultsIn vitro VSMC from WT and Gas6(-/-) mice exposed to warfarin showed increased apoptosis and calcified similarly. In vivo, aortic, cardiac and renal calcium content in all groups was similar, except for a lower cardiac calcium content in Gas6(-/-) mice (group a). Von Kossa staining revealed small vascular calcifications in both WT and Gas6(-/-) mice (groups a-c). In aging, non-manipulated mice, no significant differences in vascular calcification were identified between Gas6(-/-) and WT mice. Gas6(-/-) mice exhibited no upregulation of matrix Gla protein in any group. Cardiac output was similar in all treatment groups.

conclusionsTaken together, in our study Gas6 fails to aggravate calcification against the previous assumption.

Indexed as

AgingAnimalsAnticoagulantsAortaApoptosisCalcinosisCalciumCalcium-Binding ProteinsCardiac OutputCells, CulturedDietEchocardiographyExtracellular Matrix ProteinsFemaleGrowth Arrest-Specific Protein 6HeartAnticoagulantsCalciumCalcium-Binding ProteinsExtracellular Matrix ProteinsGrowth Arrest-Specific Protein 6Intercellular Signaling Peptides and ProteinsMatrix Gla ProteinPhosphatesWarfarin

Identifiers

PMID27230889
PMCPMC4880820
OpenAlexW2399528369

What OpenQuestion holds

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LicenceCC BY
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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.