Evidence map›Paper›PMID 28795142›Full record

ArticleTransplantation direct2017

Plasma Proenkephalin and Poor Long-Term Outcome in Renal Transplant Recipients.

Lyanne M Kieneker, Oliver Hartmann, Joachim Struck, Andreas Bergmann, Ron T Gansevoort, Michel M Joosten, Else van den Berg, Rudolf A de Boer, Stephan J L Bakker

Open access · goldAbstract read
In one paragraph

Article in Transplantation direct, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.9field-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

8 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Proenkephalin A 119-159 in Kidney Transplantation: A Novel Biomarker for Superior Tracking of Graft Function Trajectories.Transplant international : official journal of the European Society for Organ Transplantation · 2025
    Article
  5. Article
  6. Observational
  7. Article
  8. 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

9 authors at 2 institutions in 1 country.

Lyanne M KienekerDepartment of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Oliver HartmannSphingotec GmbH, Hennigsdorf, Germany.
Joachim StruckSphingotec GmbH, Hennigsdorf, Germany.
Andreas BergmannSphingotec GmbH, Hennigsdorf, Germany.
Ron T GansevoortDepartment of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Michel M JoostenDepartment of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Else van den BergDepartment of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Rudolf A de BoerDepartment of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Stephan J L BakkerDepartment of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
University of Groningen · NLUniversity Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProenkephalin (pro-ENK), a stable and reliable surrogate marker for unstable enkephalins, was found to be associated with acute kidney injury and chronic renal failure in previous studies. We aimed to investigate whether pro-ENK is linked to chronic kidney injury and poor long-term outcome in renal transplant recipients (RTR).

methodsWe included 664 stable RTR and 95 healthy kidney donors. Pro-ENK was measured in plasma with a double monoclonal sandwich immunoassay. Graft failure was defined as return to dialysis therapy or retransplantation.

resultsMedian pro-ENK was 110 pmol/L (interquartile range [IQR], 85-148 pmol/L) in RTR and 48 pmol/L (IQR, 42-55 pmol/L) in kidney donors. Pro-ENK was correlated with estimated glomerular filtration rate (GFR) (

conclusionsPlasma pro-ENK is associated with kidney function as reflected by correlations with measured GFR in both RTR and kidney donors. In addition, pro-ENK was independently associated with increased risk of graft failure in RTR. Pro-ENK may aid in identification of RTR at risk for late graft failure.

Identifiers

PMID28795142
PMCPMC5540628
OpenAlexW2728748939

What OpenQuestion holds

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Registered trials

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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.