Evidence map›Paper›PMID 30161193›Full record

ArticlePloS one2018

The role of kidney transplantation and phosphate binder use in vitamin K status.

Thijs T Jansz, Aegida Neradova, Adriana J van Ballegooijen, Marianne C Verhaar, Marc G Vervloet, Leon J Schurgers, Brigit C van Jaarsveld

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Review
  3. The Role of Vitamin K in CKD-MBD.Current osteoporosis reports · 2022
    Review
  4. Article
  5. Review
  6. Vitamin K in CKD Bone Disorders.Calcified tissue international · 2021
    Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Observational
  12. Review
  13. Review
  14. Review
  15. Vitamin K Dependent Proteins in Kidney Disease.International journal of molecular sciences · 2019
    Review
  16. Review
  17. Review
  18. Observational
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

7 authors at 4 institutions in 1 country.

Thijs T JanszDepartment of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.ORCID 0000-0002-5686-5033
Aegida NeradovaDepartment of Nephrology and Cardiovascular Sciences (ACS), VU University Medical Center, Amsterdam, the Netherlands.
Adriana J van BallegooijenDepartment of Nephrology and Cardiovascular Sciences (ACS), VU University Medical Center, Amsterdam, the Netherlands.
Marianne C VerhaarDepartment of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
Marc G VervloetDepartment of Nephrology and Cardiovascular Sciences (ACS), VU University Medical Center, Amsterdam, the Netherlands.
Leon J SchurgersDepartment of Biochemistry, Cardiovascular Research Institute Maastricht, University Maastricht, Maastricht, the Netherlands.ORCID 0000-0001-7867-6957
Brigit C van JaarsveldDepartment of Nephrology and Cardiovascular Sciences (ACS), VU University Medical Center, Amsterdam, the Netherlands.
Amsterdam UMC Location Vrije Universiteit Amsterdam · NLUtrecht University · NLDianet · NLMaastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCardiovascular disease is the leading cause of death in end-stage renal disease and is strongly associated with vascular calcification. Both kidney transplantation and phosphate binders may lower the risk of vascular calcification. Vascular calcification is actively inhibited by vitamin-K-dependent matrix γ-carboxyglutamic acid protein (MGP). Whether kidney transplantation or phosphate binders affect vitamin K status is unknown. Therefore, we studied the influence of kidney transplantation and phosphate binder use on vitamin K status.

methodsWe measured plasma desphospho-uncarboxylated MGP (dp-ucMGP), a marker reflecting low vitamin K status, in a cross-sectional study of patients on hemodialysis (n = 82), peritoneal dialysis (n = 31) or who recently received a kidney transplantation (n = 36). By medication inventory, we assessed phosphate binder use. With linear regression, we assessed the influence of kidney transplantation and phosphate binder use on natural-log-transformed dp-ucMGP, adjusting for potential confounders.

resultsMean age of patients was 52±13 years; 102 (68%) were male. Dp-ucMGP levels were significantly lower in kidney transplant recipients (median 689 pmol/L) compared to patients on dialysis (median 1537 pmol/L, p<0.001). Eighty-nine patients on dialysis used phosphate binders. Using any phosphate binder was not associated with dp-ucMGP levels (median 1637 pmol/L, p = 0.09) compared to no phosphate binders (median 1142 pmol/L). Twenty-six patients used sevelamer monotherapy, which was associated with higher dp-ucMGP levels (median 1740 pmol/L, p = 0.04) after adjusting for age, sex and vitamin K antagonist use.

conclusionsRecent kidney transplantation is associated with lower dp-ucMGP levels suggesting improved vitamin K status after transplantation. Sevelamer monotherapy is associated with higher dp-ucMGP levels suggesting worsening of vitamin K status. Both findings warrant more attention to vitamin K status in patients on dialysis, as vitamin K is necessary for protection against vascular calcification.

Indexed as

Kidney TransplantationCalcium-Binding ProteinsChelating AgentsCross-Sectional StudiesExtracellular Matrix ProteinsFemaleHumansKidney Failure, ChronicMaleMatrix Gla ProteinMiddle AgedProspective StudiesRenal DialysisSevelamerVitamin KCalcium-Binding ProteinsChelating AgentsExtracellular Matrix ProteinsMatrix Gla ProteinSevelamerVitamin K

Identifiers

PMID30161193
PMCPMC6117040
OpenAlexW2889289206

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.