Evidence map›Paper›PMID 42319831›Full record

ArticleSTAR protocols2026

Protocol for high-throughput, automated, solid-phase extraction of sphingolipids from human urine.

Rebekah J Nicholson, J Alan Maschek, Trevor Lonergan, Scott A Summers

Abstract read
In one paragraph

Article in STAR protocols, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Rebekah J NicholsonDepartment of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA; Center for Metabolic Health, University of Utah, Salt Lake City, UT, USA.
J Alan MaschekCenter for Metabolic Health, University of Utah, Salt Lake City, UT, USA; Metabolomics and Lipidomics Core Facility, University of Utah, Salt Lake City, UT, USA. Electronic address: alan.maschek@pharm.utah.edu.
Trevor LonerganMetabolomics and Lipidomics Core Facility, University of Utah, Salt Lake City, UT, USA.
Scott A SummersDepartment of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA; Center for Metabolic Health, University of Utah, Salt Lake City, UT, USA. Electronic address: scott.a.summers@health.utah.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Urinary sphingolipids may serve as biomarkers of renal diseases. Here, we present a high-throughput, automated protocol for solid-phase extraction and tandem mass spectrometry (LC-MS/MS) quantification of lipids from urine. We describe steps for sample preparation and lipid extraction, and then detail procedures for targeted LC-MS/MS analysis of urinary sphingolipids. In this protocol, we focus on the analysis of urine samples; however, this platform can be optimized for alternative biospecimens. Additionally, this method allows for tandem preparation of metabolomic and lipidomic samples. For complete details on the use and execution of this protocol, please refer to Nicholson et al.

Indexed as

Health SciencesHigh Throughput ScreeningMetabolismMetabolomicsProtocols in Metabolomics and Lipidomics

Identifiers

PMID42319831
PMCPMC13312081

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.