Evidence map›Paper›PMID 29444900›Full record

Observational studyClinical journal of the American Society of Nephrology : CJASN2018

Extended Duration Nocturnal Hemodialysis and Changes in Plasma Metabolite Profiles.

Sahir Kalim, Ron Wald, Andrew T Yan, Marc B Goldstein, Mercedeh Kiaii, Dihua Xu, Anders H Berg, Clary Clish, Ravi Thadhani, Eugene P Rhee and 1 more

Abstract readObservational Study
In one paragraph

Observational study in Clinical journal of the American Society of Nephrology : CJASN, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. The microbial metabolite trimethylamine N-oxide and the kidney diseases.Frontiers in cellular and infection microbiology · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Sahir KalimNephrology Division and.
Ron WaldDivisions of Nephrology and.
Andrew T YanCardiology, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.
Marc B GoldsteinDivisions of Nephrology and.
Mercedeh KiaiiDivision of Nephrology, St. Paul's Hospital, Vancouver, British Columbia, Canada.
Dihua XuNephrology Division and.
Anders H BergDepartment of Pathology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; and.
Clary ClishBroad Institute, Cambridge, Massachusetts.
Ravi ThadhaniNephrology Division and.
Eugene P RheeNephrology Division and.
Jeffrey PerlDivisions of Nephrology and.

Funding

Scientific and Data Coordinating Center(SDCC) for the P*U01DK060990 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI FELDMAN, HAROLD I · 2001 to 2017
$50.1M
The effects of protein carbamylation in end stage kidney diseaseK23DK106479 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI KALIM, SAHIR · 2015 to 2019
$789k
The role of carbamylation in uremia associated heart diseaseK08HL121801 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI BERG, ANDERS HAYDEN · 2014 to 2017
$588k
Protein carbamylation and uremic cardiomyopathy in chronic kidney diseaseR56HL133399 · NHLBI · BETH ISRAEL DEACONESS MEDICAL CENTER · PI BERG, ANDERS HAYDEN · 2016 to 2016
$433k
CIHRNHLBI NIH HHS K08 HL121801NHLBI NIH HHS R56 HL133399NIDDK NIH HHS K23 DK106479NIDDK NIH HHS U01 DK060990
6 · The paper itself

Abstract

BACKGROUND AND

objectivesIn-center, extended duration nocturnal hemodialysis has been associated with variable clinical benefits, but the effect of extended duration hemodialysis on many established uremic solutes and other components of the metabolome is unknown. We determined the magnitude of change in metabolite profiles for patients on extended duration nocturnal hemodialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: In a 52-week prospective, observational study, we followed 33 patients receiving conventional thrice weekly hemodialysis who converted to nocturnal hemodialysis (7-8 hours per session, three times per week). A separate group of 20 patients who remained on conventional hemodialysis (3-4 hours per session, three times per week) served as a control group. For both groups, we applied liquid chromatography-mass spectrometry-based metabolite profiling on stored plasma samples collected from all participants at baseline and after 1 year. We examined longitudinal changes in 164 metabolites among those who remained on conventional hemodialysis and those who converted to nocturnal hemodialysis using Wilcoxon rank sum tests adjusted for multiple comparisons (false discovery rate <0.05).

resultsOn average, the nocturnal group had 9.6 hours more dialysis per week than the conventional group. Among 164 metabolites, none changed significantly from baseline to study end in the conventional group. Twenty-nine metabolites changed in the nocturnal group, 21 of which increased from baseline to study end (including all branched-chain amino acids). Eight metabolites decreased after conversion to nocturnal dialysis, including l-carnitine and acetylcarnitine. By contrast, several established uremic retention solutes, including

conclusionsAcross a wide array of metabolites examined, extended duration hemodialysis was associated with modest changes in the plasma metabolome, with most differences relating to metabolite increases, despite increased dialysis time. Few metabolites showed reduction with more dialysis, and no change in several established uremic toxins was observed.

Indexed as

MetabolomeAcetylcarnitineAdultAgedAmino Acids, Branched-ChainCase-Control StudiesCresolsFemaleHumansIndicanLongitudinal StudiesMaleMethylaminesMiddle AgedProspective StudiesRenal Dialysis4-cresol sulfateAcetylcarnitineAmino Acids, Branched-ChainCresolsIndicanMethylaminesSulfuric Acid Esterstrimethyloxamine4-cresol sulfateAcetylcarnitineAmino Acids, Branched-ChainCarnitineChromatography, LiquidControl GroupsCresolshemodialysisHumansIndicanMass SpectrometryMetabolomemetabolomicsMethylaminesnocturnal dialysisOxidesProspective Studiesrenal dialysisStatistics, NonparametricSulfatesSulfuric Acid Esterstrimethylamineuremic toxins

Identifiers

PMID29444900
PMCPMC5967674

What OpenQuestion holds

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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.