Evidence map›Paper›PMID 24912660›Full record

Trial reportBMC nephrology2014

Cardiovascular disease relates to intestinal uptake of p-cresol in patients with chronic kidney disease.

Ruben Poesen, Liesbeth Viaene, Kristin Verbeke, Patrick Augustijns, Bert Bammens, Kathleen Claes, Dirk Kuypers, Pieter Evenepoel, Björn Meijers

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in BMC nephrology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00441623 (A Single Centre Observational Cohort Study on the Prognostic Relevance of P-cresol and Related Uremic Retention Solutes in the Development and/or Progression of Renal Failure and Cardiovascular Disease in Chronic Kidney Disease Patients), which is not on this map. Cited by 39 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 3 pooled it
3.9field-weighted citation impact, top 6% 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.

NCT00441623 completednot on this map

A Single Centre Observational Cohort Study on the Prognostic Relevance of P-cresol and Related Uremic Retention Solutes in the Development and/or Progression of Renal Failure and Cardiovascular Disease in Chronic Kidney Disease Patients

TypeobservationalSponsorUniversitaire Ziekenhuizen KU LeuvenRan2005 to 2015Enrolled499ConditionsChronic Kidney DiseaseArmsobservational
3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 3 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
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  15. High-Diversity Plant-Based Diet and Gut Microbiome, Plasma Metabolome, and Symptoms in Adults with CKD.Clinical journal of the American Society of Nephrology : CJASN · 2025
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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 1 institution in 1 country.

Ruben Poesen
Liesbeth Viaene
Kristin Verbeke
Patrick Augustijns
Bert Bammens
Kathleen Claes
Dirk Kuypers
Pieter Evenepoel
Björn MeijersDepartment of Microbiology and Immunology, Division of Nephrology, University Hospitals Leuven, B-3000, Leuven, Belgium. bjorn.meijers@uzleuven.be.
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSerum p-cresyl sulfate (PCS) associates with cardiovascular disease in patients with chronic kidney disease. PCS concentrations are determined by intestinal uptake of p-cresol, human metabolism to PCS and renal clearance. Whether intestinal uptake of p-cresol itself is directly associated with cardiovascular disease in patients with renal dysfunction has not been studied to date.

methodsWe performed a prospective study in patients with chronic kidney disease stage 1 - 5 (NCT00441623). Intestinal uptake of p-cresol, under steady state conditions, was estimated from 24 h urinary excretion of PCS. Primary endpoint was time to first cardiovascular event, i.e., cardiac death, myocardial infarction/ischemia, ventricular arrhythmia, cardiovascular surgery, ischemic stroke or symptomatic peripheral arterial disease. Statistical analysis was done using Kaplan-Meier estimates and Cox proportional hazard analyses.

resultsIn a cohort of 200 patients, median 24 h urinary excretion of PCS amounted to 457.47 μmol (IQR 252.68 - 697.17). After a median follow-up of 52 months, 25 patients reached the primary endpoint (tertile 1/2/3: 5/6/14 events, log rank P 0.037). Higher urinary excretion of PCS was directly associated with cardiovascular events (univariate hazard ratio per 100 μmol increase: 1.112, P 0.002). In multivariate analysis, urinary excretion of PCS remained a predictor of cardiovascular events, independent of eGFR (hazard ratio 1.120, P 0.002).

conclusionsIn patients with chronic kidney disease, intestinal uptake of p-cresol associates with cardiovascular disease independent of renal function. The intestinal generation and absorption of p-cresol may be therapeutic targets to reduce cardiovascular disease risk in patients with renal dysfunction.

Indexed as

Intestinal AbsorptionAgedAged, 80 and overBelgiumBiomarkersCardiovascular DiseasesComorbidityCresolsFemaleHumansIncidenceMaleMiddle AgedRenal Insufficiency, ChronicReproducibility of ResultsRisk Factors4-cresolBiomarkersCresols

Identifiers

PMID24912660
PMCPMC4064102
OpenAlexW2087220757

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.