Evidence map›Paper›PMID 24812165›Full record

SynthesisJournal of the American Society of Nephrology : JASN2014

The uremic toxicity of indoxyl sulfate and p-cresyl sulfate: a systematic review.

Raymond Vanholder, Eva Schepers, Anneleen Pletinck, Evi V Nagler, Griet Glorieux

Open access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Journal of the American Society of Nephrology : JASN, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 386 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
386citing papers in PubMed, 3 pooled it
20.2field-weighted citation impact, top 1% 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

386 citing papers in PubMed, 3 syntheses or guidelines pooled it, 647 citations in OpenAlex.

  1. Pooled it
  2. Renal failure · 2022
    Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Article
  10. Review
  11. Observational
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article

326 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Raymond VanholderNephrology Section, Ghent University Hospital, Ghent, Belgium Raymond.Vanholder@UGent.be.
Eva SchepersNephrology Section, Ghent University Hospital, Ghent, Belgium.
Anneleen PletinckNephrology Section, Ghent University Hospital, Ghent, Belgium.
Evi V NaglerNephrology Section, Ghent University Hospital, Ghent, Belgium.
Griet GlorieuxNephrology Section, Ghent University Hospital, Ghent, Belgium.
Ghent University Hospital · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A growing number of publications supports a biologic effect of the protein-bound uremic retention solutes indoxyl sulfate and p-cresyl sulfate. However, the use of unrealistically high free concentrations of these compounds and/or inappropriately low albumin concentrations may blur the interpretation of these results. Here, we performed a systematic review, selecting only studies in which, depending on the albumin concentration, real or extrapolated free concentrations of indoxyl sulfate and p-cresyl sulfate remained in the uremic range. The 27 studies retrieved comprised in vitro and animal studies. A quality score was developed, giving 1 point for each of the following criteria: six or more experiments, confirmation by more than one experimental approach, neutralization of the biologic effect by counteractive reagents or antibodies, use of a real-life model, and use of dose-response analyses in vitro and/or animal studies. The overall average score was 3 of 5 points, with five studies scoring 5 of 5 points and six studies scoring 4 of 5 points, highlighting the superior quality of a substantial number of the retrieved studies. In the 11 highest scoring studies, most functional deteriorations were related to uremic cardiovascular disease and kidney damage. We conclude that our systematic approach allowed the retrieval of methodologically correct studies unbiased by erroneous conditions related to albumin binding. Our data seem to confirm the toxicity of indoxyl sulfate and p-cresyl sulfate and support their roles in vascular and renal disease progression.

Indexed as

AnimalsCresolsDisease Models, AnimalHumansIndicanKidneyModels, BiologicalProtein BindingRenal Insufficiency, ChronicSulfuric Acid EstersToxins, BiologicalUremia4-cresol sulfateCresolsIndicanSulfuric Acid EstersToxins, Biologicaluremia middle molecule toxinsCKDindoxyl sulfatep-cresylsignalingsulfateuremic toxins

Identifiers

PMID24812165
PMCPMC4147984
OpenAlexW2107616906

What OpenQuestion holds

Textmetadata
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.