Evidence map›Paper›PMID 26814665›Full record

ArticleAnalytical chemistry2016

Absolute Quantitative MALDI Imaging Mass Spectrometry: A Case of Rifampicin in Liver Tissues.

Chad W Chumbley, Michelle L Reyzer, Jamie L Allen, Gwendolyn A Marriner, Laura E Via, Clifton E Barry, Richard M Caprioli

Erratum issuedAbstract read
In one paragraph

Article in Analytical chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
15.2field-weighted citation impact, top 1% 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

62 citing papers in PubMed, 176 citations in OpenAlex.

  1. Article
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  6. Article
  7. Mass Spectrometry Imaging.Analytical chemistry · 2025
    Review
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  9. Review
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  11. Article
  12. Applications of MALDI mass spectrometry in forensic science.Analytical and bioanalytical chemistry · 2024
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Chad W ChumbleyDepartment of Chemistry, Vanderbilt University , Nashville, Tennessee 37235, United States.
Michelle L ReyzerMass Spectrometry Research Center, Vanderbilt University , Nashville, Tennessee 37240, United States.
Jamie L AllenMass Spectrometry Research Center, Vanderbilt University , Nashville, Tennessee 37240, United States.
Gwendolyn A MarrinerTuberculosis Research Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States.
Laura E ViaTuberculosis Research Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States.
Clifton E BarryTuberculosis Research Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States.
Richard M CaprioliDepartment of Chemistry, Vanderbilt University , Nashville, Tennessee 37235, United States.
Vanderbilt University · USNational Institutes of Health · USNational Institute of Allergy and Infectious Diseases · US

Funding

Experimental Animal Models of TB: Chemotherapeutics and ImagingZIAAI000734 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI BARRY, CLIFTON · 2009 to 2025
$19.6M
Training (pp 214-245)P41GM103391 · NIGMS · VANDERBILT UNIVERSITY · PI CAPRIOLI, RICHARD M · 2012 to 2020
$17.7M
Spatial Analysis of Molecules in Tissue using MALDI-MSR01GM058008 · NIGMS · VANDERBILT UNIVERSITY · PI CAPRIOLI, RICHARD M · 1998 to 2015
$5.8M
NIGMS NIH HHS P41 GM103391NIGMS NIH HHS P41-GM103391NIGMS NIH HHS R01 GM058008NIGMS NIH HHS R01-GM058008
6 · The paper itself

Abstract

Matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry (IMS) elucidates molecular distributions in thin tissue sections. Absolute pixel-to-pixel quantitation has remained a challenge, primarily lacking validation of the appropriate analytical methods. In the present work, isotopically labeled internal standards are applied to tissue sections to maximize quantitative reproducibility and yield accurate quantitative results. We have developed a tissue model for rifampicin (RIF), an antibiotic used to treat tuberculosis, and have tested different methods of applying an isotopically labeled internal standard for MALDI IMS analysis. The application of the standard and subsequently the matrix onto tissue sections resulted in quantitation that was not statistically significantly different from results obtained using HPLC-MS/MS of tissue extracts. Quantitative IMS experiments were performed on liver tissue from an animal dosed in vivo. Each microspot in the quantitative images measures the local concentration of RIF in the thin tissue section. Lower concentrations were detected from the blood vessels and around the portal tracts. The quantitative values obtained from these measurements were comparable (>90% similarity) to HPLC-MS/MS results obtained from extracts of the same tissue.

Indexed as

Spectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationAnimalsChromatography, High Pressure LiquidLiverRatsRifampinRifampin

Identifiers

PMID26814665
PMCPMC5080977
OpenAlexW2273577024

What OpenQuestion holds

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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.