Evidence map›Paper›PMID 19835365›Full record

ArticleAnalytical chemistry2009

MALDI mass spectrometric imaging using the stretched sample method to reveal neuropeptide distributions in aplysia nervous tissue.

Tyler A Zimmerman, Stanislav S Rubakhin, Elena V Romanova, Kevin R Tucker, Jonathan V Sweedler

Open access · greenAbstract read
In one paragraph

Article in Analytical chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.0field-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

21 citing papers in PubMed, 39 citations in OpenAlex.

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  11. Small-volume analysis of cell-cell signaling molecules in the brain.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2014
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  18. MALDI mass spectrometry imaging of neuronal cell cultures.Journal of the American Society for Mass Spectrometry · 2011
    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

5 authors at 1 institution in 1 country.

Tyler A ZimmermanDepartment of Chemistry and the Beckman Institute, University of Illinois, Urbana, Illinois 61801, USA.
Stanislav S Rubakhin
Elena V Romanova
Kevin R Tucker
Jonathan V Sweedler
University of Illinois Urbana-Champaign · US

Funding

The UIUC Neuroproteomics Center on Cell-Cell SignalingP30DA018310 · NIDA · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI Elena V Romanova · 2004 to 2026
$24.9M
The Neurometabolome of a Sensory Neuronal NetworkR01DE018866 · NIDCR · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI SWEEDLER, JONATHAN V. · 2007 to 2011
$1.6M
NEUROPEPTIDES IN THE CNS WITH NEW MASS SPECTROMETRIC SAMPLING PROTOCOLSR01DA017940 · NIDA · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI SWEEDLER, JONATHAN V. · 2006 to 2010
$1.1M
NIDA NIH HHS DA017940NIDA NIH HHS P30 DA018310NIDA NIH HHS P30DA018310NIDA NIH HHS R01 DA017940NIDCR NIH HHS DE018866NIDCR NIH HHS R01 DE018866
6 · The paper itself

Abstract

Neuropeptides are a diverse set of complex cell-cell signaling molecules that modulate behavior, learning, and memory. Their spatially heterogeneous distributions, large number of post-translational modifications, and wide range of physiologically active concentrations make their characterization challenging. Matrix-assisted laser desorption/ionization (MALDI) mass spectrometric imaging is well-suited to characterizing and mapping neuropeptides in the central nervous system. Because matrix application can cause peptide migration within tissue samples, application parameters for MALDI typically represent a compromise between attaining the highest signal quality and preserving native spatial distributions. The stretched sample approach minimizes this trade-off by fragmenting the tissue section into thousands of spatially isolated islands, each approximately 40 mum in size. This inhibits analyte migration between the pieces and, at the same time, reduces analyte-salt adduct formation. Here, we present methodological improvements that enable the imaging of stretched tissues and reveal neuropeptide distributions in nervous tissue from Aplysia californica. The distributions of known neuropeptides are shown to correspond with previous immunohistochemical results, demonstrating that the stretched imaging method is well-suited for working with easily redistributed molecules and heterogeneous tissues and reduces adducts from physiological salts.

Indexed as

AnimalsAplysiaGanglia, InvertebrateIn Vitro TechniquesNeuropeptidesSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationNeuropeptides

Identifiers

PMID19835365
PMCPMC2837479
OpenAlexW2075516280

What OpenQuestion holds

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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.