Evidence map›Paper›PMID 19473662›Full record

ArticleJournal of chromatography. A2009

Combining tissue extraction and off-line capillary electrophoresis matrix-assisted laser desorption/ionization Fourier transform mass spectrometry for neuropeptide analysis in individual neuronal organs using 2,5-dihydroxybenzoic acid as a multi-functional agent.

Junhua Wang, Xiaoyue Jiang, Robert M Sturm, Lingjun Li

Open access · greenAbstract read
In one paragraph

Article in Journal of chromatography. A, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Review
  3. Peptidomics and Capillary Electrophoresis.Advances in experimental medicine and biology · 2021
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Crustacean neuropeptides.Cellular and molecular life sciences : CMLS · 2010
    Review
  9. Article
  10. 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.

Junhua WangSchool of Pharmacy and Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53705-2222, USA.
Xiaoyue Jiang
Robert M Sturm
Lingjun Li
University of Wisconsin–Madison · US

Funding

Mass Spectrometric Studies of Neuropeptides in FeedingR01DK071801 · NIDDK · UNIVERSITY OF WISCONSIN-MADISON · PI LINGJUN LI · 2006 to 2026
$6.7M
Training Program in Clinical Neuroengineering(RMI)T90DK070079 · NIDDK · UNIVERSITY OF WISCONSIN-MADISON · PI YIN, TOM C.T. · 2004 to 2008
$1.1M
NIDDK NIH HHS 1R01DK071801NIDDK NIH HHS R01 DK071801NIDDK NIH HHS T90 DK070079
6 · The paper itself

Abstract

In this study we report an improved protocol that combines simplified sample preparation and micro-scale separation for mass spectrometric analysis of neuropeptides from individual neuroendocrine organs of crab Cancer borealis. A simple, one-step extraction method with commonly used matrix-assisted laser desorption/ionization (MALDI) matrix, 2,5-dihydroxybenzoic acid (DHB), in saturated aqueous solution, is employed for improved extraction of neuropeptides. Furthermore, a novel use of DHB as background electrolyte for capillary electrophoresis (CE) separation in the off-line coupling of CE to MALDI-Fourier transform mass spectrometric (FT-MS) detection is also explored. The new CE electrolyte exhibits full compatibility with MALDI-MS analysis of neuropeptides in that both the peptide extraction process and MALDI detection utilize DHB. In addition, enhanced resolving power and improved sensitivity are also observed for CE-MALDI-MS of peptide mixture analysis. Collectively, the use of DHB has simplified the extraction and reduced the sample loss by elimination of homogenizing, drying, and desalting processes. In the mean time, the concurrent use of DHB as CE separation buffer and subsequent MALDI matrix offers improved spectral quality by eliminating the interferences from typical CE electrolyte in MALDI detection.

Indexed as

AnimalsBrachyuraElectrophoresis, CapillaryFourier AnalysisGentisatesNeuroendocrine CellsNeuropeptidesSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTissue Extracts2,5-dihydroxybenzoic acidGentisatesNeuropeptidesTissue Extracts

Identifiers

PMID19473662
PMCPMC2783529
OpenAlexW2091370702

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.