Evidence map›Paper›PMID 34628183›Full record

ArticleJournal of chromatography. B, Analytical technologies in the biomedical and life sciences2021

Using mass spectrometry to overcome the longstanding inaccuracy of a commercially-available clinical testosterone immunoassay.

Junyan Shi, Rachel Bird, Michael W Schmeling, Andrew N Hoofnagle

Open access · greenAbstract read
In one paragraph

Article in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
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  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Surreptitious pipetting errors on a vendor-programmed liquid handler.Journal of mass spectrometry and advances in the clinical lab · 2024
    Article
  9. Clinical utility of laboratory developed mass spectrometry assays for steroid hormone testing.Journal of mass spectrometry and advances in the clinical lab · 2023
    Review
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 1 institution in 1 country.

Junyan ShiDepartment of Laboratory Medicine and Pathology, University of Washington, School of Medicine, United States.
Rachel BirdDepartment of Laboratory Medicine and Pathology, University of Washington, School of Medicine, United States.
Michael W SchmelingDepartment of Laboratory Medicine and Pathology, University of Washington, School of Medicine, United States.
Andrew N HoofnagleDepartment of Laboratory Medicine and Pathology, University of Washington, School of Medicine, United States; Department of Medicine, University of Washington School of Medicine, United States; Kidney Research Institute, University of Washington, School of Medicine, United States. Electronic address: ahoof@u.washington.edu.
University of Washington · US

Funding

PILOT STUDY--CLINICAL NUTRITION RESEARCHP30DK035816 · NIDDK · UNIVERSITY OF WASHINGTON · PI Ellen A Schur · 1986 to 2026
$30.4M
NIDDK NIH HHS P30 DK035816
6 · The paper itself

Abstract

Accurate measurement of testosterone is important for the diagnosis of gonadal disorders in men, women, and children. Testosterone measurement has limited accuracy at low concentrations by most commercially available immunoassays. We aimed to develop an LC-MS/MS assay to address the inaccuracy of the in-house immunoassay observed over the past decade and to replace it with the new assay. Testosterone in serum/plasma was extracted with commercial supported liquid extraction plates. Method validation was performed following the CLSI C62-A guideline. A total of 126 samples were used for method comparison between the Beckman UniCel DxI immunoassay and LC-MS/MS. Results by immunoassay were 20% lower compared with LC-MS/MS and had minimal correlation (R

Indexed as

Chromatography, High Pressure LiquidTandem Mass SpectrometryHumansImmunoassayLinear ModelsReproducibility of ResultsTestosteroneTestosteroneHormone standardizationHypogonadismImmunoassayMass spectrometryTestosterone

Identifiers

PMID34628183
PMCPMC8589107
OpenAlexW3201762677

What OpenQuestion holds

Textmetadata
LicenceTDM
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.