Evidence map›Paper›PMID 34939053›Full record

ArticleJournal of mass spectrometry and advances in the clinical lab2021

Stability of lipids in plasma and serum: Effects of temperature-related storage conditions on the human lipidome.

Gregory B Reis, Jon C Rees, Anna A Ivanova, Zsuzsanna Kuklenyik, Nathan M Drew, James L Pirkle, John R Barr

Open access · goldAbstract read
In one paragraph

Article in Journal of mass spectrometry and advances in the clinical lab, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Clinical lipidomics in bacterial sepsis: a systematic review of serum and plasma evaluations.Metabolomics : Official journal of the Metabolomic Society · 2026
    Pooled it
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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

7 authors at 2 institutions in 1 country.

Gregory B ReisDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Chamblee, GA, United States.
Jon C ReesDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Chamblee, GA, United States.
Anna A IvanovaDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Chamblee, GA, United States.
Zsuzsanna KuklenyikDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Chamblee, GA, United States.
Nathan M DrewDivision of Science Integration, National Institute for Occupational Safety & Health, Centers for Disease Control and Prevention, Cincinnati, OH, United States.
James L PirkleDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Chamblee, GA, United States.
John R BarrDivision of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Chamblee, GA, United States.
Centers for Disease Control and Prevention · USNational Center for Environmental Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Large epidemiological studies often require sample transportation and storage, presenting unique considerations when applying advanced lipidomics techniques. The goal of this study was to acquire lipidomics data on plasma and serum samples stored at potential preanalytical conditions (e.g., thawing, extracting, evaporating), systematically monitoring lipid species for a period of one month. Split aliquots of 10 plasma samples and 10 serum samples from healthy individuals were kept in three temperature-related environments: refrigerator, laboratory benchtop, or heated incubator. Samples were analyzed at six different time points over 28 days using a Bligh & Dyer lipid extraction protocol followed by direct infusion into a lipidomics platform using differential mobility with tandem mass spectrometry. The observed concentration changes over time were evaluated relative to method and inter-individual biological variability. In addition, to evaluate the effect of lipase enzyme levels on concentration changes during storage, we compared corresponding fasting and post-prandial plasma samples collected from 5 individuals. Based on our data, a series of low abundance free fatty acid (FFA), diacylglycerol (DAG), and cholesteryl ester (CE) species were identified as potential analytical markers for degradation. These FFA and DAG species are typically produced by endogenous lipases from numerous triacylglycerols (TAGs), and certain high abundance phosphatidylcholines (PCs). The low concentration CEs, which appeared to increase several fold, were likely mass-isobars from oxidation of other high concentration CEs. Although the concentration changes of the high abundant TAG, PC, and CE precursors remained within method variability, the concentration trends of FFA, DAG, and oxidized CE products should be systematically monitored over time to inform analysts about possible pre-analytical biases due to degradation in the study sample sets.

Indexed as

15-Hp-PGD2, 15-hydroperoxy-prostaglandin D2CE, Cholesteryl esterCER, CeramideCholesteryl EsterDAG, DiacylglycerolDegradationFatty AcidsFFA, Free Fatty AcidHpETE, hydroperoxyeicosatetraenoic acidHpODE, hydroperoxyoctadecadienoic acidHydrolysisLipidomicsLPC, LysophosphatidylcholineLPE, LysophosphatidylethanolamineLysoPL, LysophospholipidOxidationPC, PhosphatidylcholinePE, PhosphatidylethanolaminePGD2, prostaglandin D2PLA1, phospholipase A1PLA2, phospholipase A2PL, PhospholipidSM, SphingomyelinStabilityTAG, TriacylglycerolTriglycerides

Identifiers

PMID34939053
PMCPMC8662332
OpenAlexW3205300708

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.