Evidence map›Paper›PMID 31754769›Full record

ArticleAnalytical and bioanalytical chemistry2019

Intraoperative detection of isocitrate dehydrogenase mutations in human gliomas using a miniature mass spectrometer.

Hannah Marie Brown, Fan Pu, Mahua Dey, James Miller, Mitesh V Shah, Scott A Shapiro, Zheng Ouyang, Aaron A Cohen-Gadol, R Graham Cooks

Open access · greenAbstract read
In one paragraph

Article in Analytical and bioanalytical chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed, 28 citations in OpenAlex.

  1. Metabolite ratiomics: Rapid diagnosis and classification of gliomas for intraoperative application during brain surgery.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Ambient ionization mass spectrometry in brain cancer diagnosis.Journal of mass spectrometry and advances in the clinical lab · 2025
    Review
  4. Article
  5. Review
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  7. Rapid detection of IDH mutations in gliomas by intraoperative mass spectrometry.Proceedings of the National Academy of Sciences of the United States of America · 2024
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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

9 authors at 5 institutions in 2 countries.

Hannah Marie BrownDepartment of Chemistry and Bindley Biosciences Center, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907-1393, USA.
Fan PuDepartment of Chemistry and Bindley Biosciences Center, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907-1393, USA.
Mahua DeyDepartment of Neurological Surgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
James MillerDepartment of Neurological Surgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
Mitesh V ShahDepartment of Neurological Surgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
Scott A ShapiroDepartment of Neurological Surgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
Zheng OuyangDepartment of Chemistry and Bindley Biosciences Center, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907-1393, USA.
Aaron A Cohen-GadolDepartment of Neurological Surgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
R Graham CooksDepartment of Chemistry and Bindley Biosciences Center, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907-1393, USA. cooks@purdue.edu.
Indiana University School of MedicinePurdue University West Lafayette · USIndiana University – Purdue University Indianapolis · USNeurological Surgery · USTsinghua University · CN

Funding

Development of a Miniature Mass Spectromtry System for Point-of-Care ApplicationsR44GM119584 · NIGMS · PURSPEC TECHNOLOGIES, INC. · PI REN, YUE · 2017 to 2018
$1.3M
NIGMS NIH HHS R44 GM119584NIGMS NIH HHS R44GM119584
6 · The paper itself

Abstract

Knowledge of the isocitrate dehydrogenase (IDH) mutation status of glioma patients could provide insights for decision-making during brain surgery. However, pathology is not able to provide such information intraoperatively. Here we describe the first application of a miniature mass spectrometer (MS) to the determination of IDH mutation status in gliomas intraoperatively. The instrumentation was modified to be compatible with use in the operating room. Tandem MS was performed on the oncometabolite, 2-hydroxyglutarate, and a reference metabolite, glutamate, which is not involved in the IDH mutation. Ratios of fragment ion intensities were measured to calculate an IDH mutation score, which was used to differentiate IDH mutant and wild-type tissues. The results of analyzing 25 biopsies from 13 patients indicate that reliable determination of IDH mutation status was achieved (p = 0.0001, using the Kruskal-Wallis non-parametric test). With its small footprint and low power consumption and noise level, this application of miniature mass spectrometers represents a simple and cost-effective platform for an important intraoperative measurement. Graphical abstract.

Indexed as

MutationBiopsyBrain NeoplasmsCohort StudiesGliomaHumansIntraoperative PeriodIsocitrate DehydrogenaseSpectrometry, Mass, Electrospray IonizationTandem Mass SpectrometryIsocitrate DehydrogenaseAmbient ionization mass spectrometryIsocitrate dehydrogenase mutationMiniature mass spectrometryMolecular cancer diagnosticsPoint-of-care diagnostics

Identifiers

PMID31754769
PMCPMC8396075
OpenAlexW2991232577

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.