Evidence map›Paper›PMID 32754728›Full record

ArticleJournal of analytical toxicology2021

Stability of Phosphatidylethanol 16:0/18:1 in Freshly Drawn, Authentic Samples from Healthy Volunteers.

Ragnhild Bergene Skråstad, Olav Spigset, Trond Oskar Aamo, Trine Naalsund Andreassen

Open access · hybridAbstract read
In one paragraph

Article in Journal of analytical toxicology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. Article
  3. Integrating Phosphatidylethanol to Enhance Alcohol Quantification in Steatotic Liver Disease and Clinical Trials.Liver international : official journal of the International Association for the Study of the Liver · 2026
    Review
  4. Review
  5. Article
  6. Article
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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

4 authors at 2 institutions in 1 country.

Ragnhild Bergene SkråstadDepartment of Clinical Pharmacology, St. Olavs Hospital, 7006 Trondheim, Norway.
Olav SpigsetDepartment of Clinical Pharmacology, St. Olavs Hospital, 7006 Trondheim, Norway.
Trond Oskar AamoDepartment of Clinical Pharmacology, St. Olavs Hospital, 7006 Trondheim, Norway.
Trine Naalsund AndreassenDepartment of Clinical Pharmacology, St. Olavs Hospital, 7006 Trondheim, Norway.
Norwegian University of Science and Technology · NOSt Olav's University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Due to its specificity, phosphatidylethanol (PEth) 16:0/18:1 has gained increased popularity as a marker for high alcohol consumption in recent years. As conflicting results regarding the stability of PEth 16:0/18:1 in whole blood have been published, there are still uncertainties related to optimum handling, transport and storage of blood samples for the analysis of PEth 16:0/18:1. A stability study where whole blood samples were drawn from healthy volunteers, who had ingested alcohol, is presented. The samples were collected in tubes with ethylenediamine tetraacetic acid (EDTA) and heparin as additives and stored under standardized conditions within 1 h of blood sampling. Storage times were 28 days in ambient temperature and at 4-8°C, and 90 days at -20°C and -80°C. All samples were analyzed regularly during the storage periods. PEth 16:0/18:1 concentrations were stable (defined as < 15% decrease compared with baseline values) at all temperatures up to 28 days, independent of additive. After 90 days of storage at -20°C, the mean concentrations had decreased by 18.8% in EDTA tubes and by 13.8% in heparin tubes. At -80°C, the concentrations were stable throughout the 90-day period. The present study shows that in samples containing PEth formed in vivo, PEth 16:0/18:1 is stable for 28 days irrespective of storage temperature. During long-term storage, samples should be stored at -80°C.

Indexed as

Alcohol DrinkingGlycerophospholipidsBiomarkersEthanolHealthy VolunteersHumansBiomarkersEthanolGlycerophospholipidsphosphatidylethanol

Identifiers

PMID32754728
PMCPMC8040374
OpenAlexW3047456753

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.