Evidence map›Paper›PMID 28188231›Full record

ArticleClinical chemistry2017

Diurnal and Long-term Variation in Plasma Concentrations and Renal Clearances of Circulating Markers of Kidney Proximal Tubular Secretion.

Matthew B Rivara, Leila R Zelnick, Andrew N Hoofnagle, Rick Newitt, Russell P Tracy, Mario Kratz, David S Weigle, Bryan R Kestenbaum

Open access · bronzeAbstract read
In one paragraph

Article in Clinical chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 22 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Matthew B RivaraKidney Research Institute, Seattle, WA.
Leila R ZelnickKidney Research Institute, Seattle, WA.
Andrew N HoofnagleKidney Research Institute, Seattle, WA.
Rick NewittKidney Research Institute, Seattle, WA.
Russell P TracyKidney Research Institute, Seattle, WA.
Mario KratzCancer Prevention Program, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA.
David S WeigleDivision of Metabolism, Endocrinology, and Nutrition, Department of Medicine, University of Washington, Seattle, WA.
Bryan R KestenbaumKidney Research Institute, Seattle, WA; brk@uw.edu.
University of Washington · USFred Hutch Cancer Center · USUniversity of Vermont · US

Funding

PILOT STUDY--CLINICAL NUTRITION RESEARCHP30DK035816 · NIDDK · UNIVERSITY OF WASHINGTON · PI GREGORY J MORTON · 1986 to 2026
$30.4M
NCCIH Supplement to NCATS/CTSA Program for KL2 Scholars - M. SoddersKL2TR002317 · NCATS · UNIVERSITY OF WASHINGTON · PI Christy Michelle McKinney · 2017 to 2026
$14.5M
Institute of Translational Health SciencesKL2TR000421 · NCATS · UNIVERSITY OF WASHINGTON · PI DISIS, MARY L. · 2012 to 2016
$12.6M
RESEARCH TRAINING IN RENAL DISEASET32DK007467 · NIDDK · UNIVERSITY OF WASHINGTON · PI BANSAL, NISHA, KESTENBAUM, BRYAN R · 1986 to 2023
$5.1M
Tubular Secretion in Chronic Kidney DiseaseR01DK107931 · NIDDK · UNIVERSITY OF WASHINGTON · PI KESTENBAUM, BRYAN R · 2016 to 2019
$2.7M
Mineral metabolism disturbances and arteriovenous fistula maturationR01DK094891 · NIDDK · UNIVERSITY OF WASHINGTON · PI KESTENBAUM, BRYAN R · 2012 to 2014
$930k
Midcareer Investigator Award: Metabolic Complications of Chronic Kidney DiseaseK24DK103986 · NIDDK · UNIVERSITY OF WASHINGTON · PI KESTENBAUM, BRYAN R · 2016 to 2020
$637k
NCATS NIH HHS KL2 TR000421NCATS NIH HHS KL2 TR002317NIDDK NIH HHS K24 DK103986NIDDK NIH HHS P30 DK035816NIDDK NIH HHS R01 DK094891NIDDK NIH HHS R01 DK107931NIDDK NIH HHS T32 DK007467
6 · The paper itself

Abstract

backgroundThe renal proximal tubule is essential for removing organic solutes and exogenous medications from the circulation. We evaluated diurnal, prandial, and long-term biological variation of 4 candidate endogenous markers of proximal tubular secretion.

methodsWe used LC-MS to measure plasma and urine concentrations of hippurate (HA), cinnamoylglycine (CMG), indoxyl sulfate (IS), and

resultsPlasma concentrations of secreted solutes varied over the 24-h baseline period. Diurnal variation was greatest for HA, followed by CMG, IS, and PCS. Plasma concentrations of HA (

conclusionsPlasma concentrations of HA, CMG, IS, and PCS fluctuate within individuals throughout the day and over weeks. Renal clearances of these secreted solutes, which serve as estimates of renal proximal tubule secretion, are also subject to intraindividual biological variation that can be improved by additional plasma measurements.

Indexed as

AdultBiomarkersChromatography, LiquidCresolsFemaleGlycineHippuratesHumansIndicanKidney Tubules, ProximalMaleSulfuric Acid EstersTandem Mass Spectrometry4-cresol sulfateBiomarkerscinnamoylglycineCresolsGlycineHippurateshippuric acidIndicanSulfuric Acid Esters

Identifiers

PMID28188231
PMCPMC5564449
OpenAlexW2586243973

What OpenQuestion holds

Textmetadata
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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.